- Acid Neutralizing Capacity (ANC; as CaCO3), UNF, TITR -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 90410, MCode: TT040
Dates: 10/01/86 through 09/27/01
Open Data Set

 Mean = 25.91 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 22 
 Blind Sample ID = STM6  Mean = 174.69 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 16 
 Blind Sample ID = ST98  Mean = 119.47 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 17 
 Blind Sample ID = ST96  Mean = 247.96 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 25 
 Blind Sample ID = ST94  Mean = 32.50 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 20 
 Blind Sample ID = ST82  Mean = 133.72 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 18 
 Blind Sample ID = ST00  Mean = 23.11 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 29 
 Blind Sample ID = 75DIW-25144  Mean = 10.41 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25138  Mean = 15.66 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25130  Mean = 14.07 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33122  Mean = 38.06 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 63 
 Blind Sample ID = 67DW-33120  Mean = 58.53 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33118  Mean = 14.47 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 32 
 Blind Sample ID = 67DW-33114  Mean = 42.20 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33104  Mean = 33.00 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 24 
 Blind Sample ID = 67DIW-33132  Mean = 19.83 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 13.75 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 16 
 Blind Sample ID = 67DIW-33122  Mean = 38.68 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 19 
 Blind Sample ID = 67DIW-33120  Mean = 13.30 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 10 
 Blind Sample ID = 50M6/50DW  Mean = 87.17 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5098  Mean = 61.90 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 21 
 Blind Sample ID = 50DW/5096  Mean = 17.75 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5082  Mean = 17.57 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5012  Mean = 46.00 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 18 
 Blind Sample ID = 50DW/5008  Mean = 63.07 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5004  Mean = 120.63 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 24 
 Blind Sample ID = 50DW-50124  Mean = 20.08 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50122  Mean = 84.58 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50118  Mean = 17.17 
 % Relative Standard Deviation = 7.1 
 Number of Observations = 52 
 Blind Sample ID = 50DW-50112  Mean = 64.15 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 13 
 Blind Sample ID = 50DW-50104  Mean = 18.94 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 52 
 Blind Sample ID = 50DIW-50138  Mean = 78.53 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 52 
 Blind Sample ID = 50DIW-50136  Mean = 29.77 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 30 
 Blind Sample ID = 50DIW-50130  Mean = 87.49 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 37 
 Blind Sample ID = 50DIW-50128  Mean = 86.00 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 6 
 Blind Sample ID = 5098/50DW  Mean = 149.17 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 6 
 Blind Sample ID = 5098/5004  Mean = 61.50 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 14 
 Blind Sample ID = 5096/50DW  Mean = 133.75 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 4 
 Blind Sample ID = 5094/50M6  Mean = 137.15 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 13 
 Blind Sample ID = 5094/50M4  Mean = 142.50 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 4 
 Blind Sample ID = 5094/5082  Mean = 3.86 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 24 
 Blind Sample ID = 50152-50DIW  Mean = 133.56 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 34 
 Blind Sample ID = 50142-50144  Mean = 99.55 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 18 
 Blind Sample ID = 50140-50144  Mean = 79.00 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 16 
 Blind Sample ID = 5014/5096  Mean = 35.30 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 10 
 Blind Sample ID = 5014/5012  Mean = 74.56 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 46 
 Blind Sample ID = 50138-50140  Mean = 94.57 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 30 
 Blind Sample ID = 50136-50138  Mean = 88.58 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 18 
 Blind Sample ID = 50134-50140  Mean = 109.42 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 68 
 Blind Sample ID = 50134-50136  Mean = 80.13 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 18 
 Blind Sample ID = 50132-50134  Mean = 104.98 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 30 
 Blind Sample ID = 50130-50136  Mean = 75.10 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 24 
 Blind Sample ID = 50130-50132  Mean = 118.92 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 12 
 Blind Sample ID = 50128-50134  Mean = 133.61 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 18 
 Blind Sample ID = 50128-50132  Mean = 102.18 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 11 
 Blind Sample ID = 50126-50128  Mean = 134.67 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 12 
 Blind Sample ID = 50126-50124  Mean = 33.83 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 12 
 Blind Sample ID = 50126-50122  Mean = 141.38 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 24 
 Blind Sample ID = 50120-50128  Mean = 177.00 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 10 
 Blind Sample ID = 50120-50124  Mean = 71.67 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 12 
 Blind Sample ID = 50120-50112  Mean = 34.90 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 10 
 Blind Sample ID = 50114-50112  Mean = 127.25 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 12 
 Blind Sample ID = 50110-50118  Mean = 58.17 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 12 
 Blind Sample ID = 50110-50112  Mean = 20.50 
 % Relative Standard Deviation = 7.8 
 Number of Observations = 14 
 Blind Sample ID = 50106-50112  Mean = 67.50 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 6 
 Blind Sample ID = 50106-50104  Mean = 87.31 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 13 
 Blind Sample ID = 5010/5008  Mean = 102.81 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 16 
 Blind Sample ID = 5010/5004  Mean = 65.17 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 12 
 Blind Sample ID = 5006/5004  Mean = 62.17 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 24 
 Blind Sample ID = 5004/50DW  Mean = 151.71 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 7 
 Blind Sample ID = 5002/5004  Mean = 154.73 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 11 
 Blind Sample ID = 5000/5098  Mean = 127.17 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 18 
 Blind Sample ID = 5000/5096  Mean = 157.33 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 6 
 Blind Sample ID = 5000/5002  Mean = 9.52 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 27 
 Blind Sample ID = 33M6/67DW  Mean = 116.20 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6798  Mean = 25.09 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 22 
 Blind Sample ID = 33DW/6714  Mean = 22.93 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 15 
 Blind Sample ID = 33DW/6712  Mean = 57.00 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 21 
 Blind Sample ID = 33DW/6710  Mean = 60.41 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 22 
 Blind Sample ID = 33DW/6708  Mean = 5.45 
 % Relative Standard Deviation = 8.2 
 Number of Observations = 13 
 Blind Sample ID = 33DW/6706  Mean = 82.75 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6704  Mean = 120.05 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6702  Mean = 89.13 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 23 
 Blind Sample ID = 33DW/6700  Mean = 20.65 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67126  Mean = 26.00 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67122  Mean = 75.72 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 53 
 Blind Sample ID = 33DW-67120  Mean = 113.04 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67118  Mean = 26.79 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 24 
 Blind Sample ID = 33DW-67114  Mean = 56.89 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67110  Mean = 6.28 
 % Relative Standard Deviation = 7.8 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67106  Mean = 84.67 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 27 
 Blind Sample ID = 33DW-67104  Mean = 43.83 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67134  Mean = 64.59 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67132  Mean = 38.35 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67130  Mean = 19.83 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 24 
 Blind Sample ID = 33DIW-67126  Mean = 25.91 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67122  Mean = 75.48 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67120  Mean = 59.10 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 49 
 Blind Sample ID = 3398/67DW  Mean = 40.59 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 22 
 Blind Sample ID = 3396/67DW  Mean = 84.74 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 23 
 Blind Sample ID = 3394/67DW  Mean = 12.08 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 13 
 Blind Sample ID = 3312/67DW  Mean = 30.92 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 12 
 Blind Sample ID = 3308/67DW  Mean = 3.60 
 % Relative Standard Deviation = 13.7 
 Number of Observations = 35 
 Blind Sample ID = 3306/67DW  Mean = 45.28 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 32 
 Blind Sample ID = 3300/67DW  Mean = 190.25 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 12 
 Blind Sample ID = 25M4/7594  Mean = 130.76 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 21 
 Blind Sample ID = 25DW/7598  Mean = 90.44 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7596  Mean = 183.92 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7594  Mean = 28.47 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 15 
 Blind Sample ID = 25DW/7514  Mean = 25.56 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7512  Mean = 64.42 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7510  Mean = 67.63 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7508  Mean = 92.84 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 44 
 Blind Sample ID = 25DW/7504  Mean = 136.13 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7502  Mean = 101.44 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7500  Mean = 22.21 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75126  Mean = 179.87 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75124  Mean = 29.38 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75122  Mean = 126.69 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75118  Mean = 24.75 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 32 
 Blind Sample ID = 25DW-75112  Mean = 63.81 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75110  Mean = 7.02 
 % Relative Standard Deviation = 16.5 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75106  Mean = 93.88 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75104  Mean = 17.02 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 41 
 Blind Sample ID = 25DIW-75150  Mean = 65.71 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 60 
 Blind Sample ID = 25DIW-75144  Mean = 137.22 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 26 
 Blind Sample ID = 25DIW-75142  Mean = 27.44 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 30 
 Blind Sample ID = 25DIW-75138  Mean = 116.41 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 52 
 Blind Sample ID = 25DIW-75136  Mean = 49.07 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75134  Mean = 72.42 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75132  Mean = 43.00 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75130  Mean = 130.00 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 32 
 Blind Sample ID = 25DIW-75128  Mean = 22.13 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75126  Mean = 29.06 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75122  Mean = 85.58 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75120  Mean = 178.78 
 % Relative Standard Deviation = 0.2 
 Number of Observations = 9 
 Blind Sample ID = 2598/7502  Mean = 144.82 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 11 
 Blind Sample ID = 2598/7500  Mean = 161.00 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 9 
 Blind Sample ID = 2596/7598  Mean = 58.10 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 10 
 Blind Sample ID = 2596/7514  Mean = 81.43 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 21 
 Blind Sample ID = 2594/75M6  Mean = 153.62 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 13 
 Blind Sample ID = 2594/7596  Mean = 163.00 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 10 
 Blind Sample ID = 2594/7500  Mean = 162.67 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 3 
 Blind Sample ID = 2588/7586  Mean = 167.51 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 62 
 Blind Sample ID = 25150-75004  Mean = 157.56 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 13 
 Blind Sample ID = 25144-75142  Mean = 55.24 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 32 
 Blind Sample ID = 25140-75138  Mean = 99.20 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 20 
 Blind Sample ID = 2514/7596  Mean = 93.50 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 26 
 Blind Sample ID = 25138-75140  Mean = 132.26 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 28 
 Blind Sample ID = 25134-75136  Mean = 65.44 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 24 
 Blind Sample ID = 25132-75130  Mean = 142.50 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 6 
 Blind Sample ID = 25130-75128  Mean = 138.00 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 5 
 Blind Sample ID = 25122-75128  Mean = 98.58 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 12 
 Blind Sample ID = 2512/7596  Mean = 113.30 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 10 
 Blind Sample ID = 2510/7504  Mean = 115.00 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 6 
 Blind Sample ID = 2508/7504  Mean = 65.50 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 8 
 Blind Sample ID = 2506/7510  Mean = 67.17 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 6 
 Blind Sample ID = 2506/7508  Mean = 94.57 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 7 
 Blind Sample ID = 2504/7510  Mean = 165.09 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 11 
 Blind Sample ID = 2504/7502  Mean = 136.53 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 17 
 Blind Sample ID = 2502/7504  Mean = 164.65 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 20 
 Blind Sample ID = 2500/7598  Mean = 61.88 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 8 
 Blind Sample ID = 2500/7514  Mean = 58.69 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 13 
 Blind Sample ID = 2500/7512  Mean = 51.96 
 % Relative Standard Deviation = 103.1 
 Number of Observations = 23 
 Blind Sample ID =
The SGPlot Procedure



- Alkalinity (as CaCO3), FIL, TITR -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 29801, MCode: TT040
Dates: 10/05/99 through 09/27/01
Open Data Set

 Mean = 3.90 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 16 
 Blind Sample ID = 50152-50DIW  Mean = 106.48 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 15 
 Blind Sample ID = 50004-50DIW  Mean = 158.62 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 14 
 Blind Sample ID = 25144-75142
The SGPlot Procedure



- Bromide, FIL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 71870, MCode: IC024
Dates: 10/09/86 through 10/01/97
Open Data Set

 Mean = 0.02 
 % Relative Standard Deviation = 18.9 
 Number of Observations = 8 
 Blind Sample ID = P5  Mean = 0.05 
 % Relative Standard Deviation = 486.7 
 Number of Observations = 36 
 Blind Sample ID = P17  Mean = 0.74 
 % Relative Standard Deviation = 304.7 
 Number of Observations = 55 
 Blind Sample ID = P16  Mean = 0.02 
 % Relative Standard Deviation = 307.6 
 Number of Observations = 43 
 Blind Sample ID = P14  Mean = 0.06 
 % Relative Standard Deviation = 292.9 
 Number of Observations = 30 
 Blind Sample ID = P12  Mean = 0.01 
 % Relative Standard Deviation = 14.0 
 Number of Observations = 49 
 Blind Sample ID = P11
The SGPlot Procedure



- Calcium, FIL, AA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00915, MCode: AA008
Dates: 10/06/86 through 03/29/96
Open Data Set

 Mean = 44.25 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 4 
 Blind Sample ID = ST96  Mean = 171.33 
 % Relative Standard Deviation = 10.3 
 Number of Observations = 15 
 Blind Sample ID = ST00  Mean = 6.05 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 15 
 Blind Sample ID = 67DIW-33122  Mean = 20.15 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 20 
 Blind Sample ID = 67DIW-33120  Mean = 12.60 
 % Relative Standard Deviation = 7.7 
 Number of Observations = 10 
 Blind Sample ID = 50M6/50DW  Mean = 35.83 
 % Relative Standard Deviation = 6.2 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5098  Mean = 21.71 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 17 
 Blind Sample ID = 50DW/5096  Mean = 5.75 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5082  Mean = 5.83 
 % Relative Standard Deviation = 7.8 
 Number of Observations = 16 
 Blind Sample ID = 50DW/5012  Mean = 36.12 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 17 
 Blind Sample ID = 50DW/5008  Mean = 27.62 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 13 
 Blind Sample ID = 50DW/5004  Mean = 89.75 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5000  Mean = 80.12 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 17 
 Blind Sample ID = 50DW-50124  Mean = 9.57 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 9 
 Blind Sample ID = 50DW-50122  Mean = 32.45 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 11 
 Blind Sample ID = 50DW-50118  Mean = 5.85 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 35 
 Blind Sample ID = 50DW-50112  Mean = 27.00 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 3 
 Blind Sample ID = 50DW-50104  Mean = 39.43 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 28 
 Blind Sample ID = 50DIW-50128  Mean = 35.00 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 7 
 Blind Sample ID = 5098/50DW  Mean = 64.40 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 5 
 Blind Sample ID = 5098/5004  Mean = 20.86 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 14 
 Blind Sample ID = 5096/50DW  Mean = 57.21 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 14 
 Blind Sample ID = 5094/50M4  Mean = 53.67 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 6 
 Blind Sample ID = 5094/5082  Mean = 27.50 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 14 
 Blind Sample ID = 5014/5096  Mean = 12.77 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 13 
 Blind Sample ID = 5014/5012  Mean = 59.33 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 6 
 Blind Sample ID = 50128-50134  Mean = 56.86 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 7 
 Blind Sample ID = 50128-50132  Mean = 43.09 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 11 
 Blind Sample ID = 50126-50128  Mean = 79.29 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 7 
 Blind Sample ID = 50126-50124  Mean = 13.36 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 11 
 Blind Sample ID = 50126-50122  Mean = 68.38 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 24 
 Blind Sample ID = 50120-50128  Mean = 104.00 
 % Relative Standard Deviation = 8.6 
 Number of Observations = 5 
 Blind Sample ID = 50120-50124  Mean = 35.92 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 12 
 Blind Sample ID = 50120-50112  Mean = 54.58 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 12 
 Blind Sample ID = 50110-50118  Mean = 28.08 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 12 
 Blind Sample ID = 50110-50112  Mean = 31.33 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 6 
 Blind Sample ID = 50106-50104  Mean = 58.08 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 13 
 Blind Sample ID = 5010/5008  Mean = 50.38 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 13 
 Blind Sample ID = 5010/5004  Mean = 32.85 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 27 
 Blind Sample ID = 5007/5003  Mean = 31.46 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 13 
 Blind Sample ID = 5006/5004  Mean = 27.17 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 24 
 Blind Sample ID = 5004/50DW  Mean = 64.08 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 12 
 Blind Sample ID = 5003/5001  Mean = 68.14 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 7 
 Blind Sample ID = 5002/5004  Mean = 122.50 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 12 
 Blind Sample ID = 5000/5098  Mean = 108.95 
 % Relative Standard Deviation = 5.8 
 Number of Observations = 19 
 Blind Sample ID = 5000/5096  Mean = 126.67 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 6 
 Blind Sample ID = 5000/5002  Mean = 8.90 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 6 
 Blind Sample ID = 33DW/6714  Mean = 7.84 
 % Relative Standard Deviation = 8.0 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6712  Mean = 5.81 
 % Relative Standard Deviation = 6.2 
 Number of Observations = 18 
 Blind Sample ID = 33DW-67106  Mean = 31.50 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 4 
 Blind Sample ID = 25DW/7596  Mean = 27.33 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 6 
 Blind Sample ID = 25DIW-75132  Mean = 57.38 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75128  Mean = 5.47 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75126  Mean = 14.27 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75122  Mean = 45.50 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75120  Mean = 153.33 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 6 
 Blind Sample ID = 2598/7500  Mean = 167.14 
 % Relative Standard Deviation = 9.0 
 Number of Observations = 7 
 Blind Sample ID = 2594/7500  Mean = 69.89 
 % Relative Standard Deviation = 6.0 
 Number of Observations = 9 
 Blind Sample ID = 25134-75128  Mean = 40.00 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 5 
 Blind Sample ID = 25132-75134  Mean = 24.67 
 % Relative Standard Deviation = 7.1 
 Number of Observations = 6 
 Blind Sample ID = 25132-75130  Mean = 63.33 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 6 
 Blind Sample ID = 25130-75128  Mean = 50.83 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 6 
 Blind Sample ID = 25128-75134  Mean = 24.91 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 11 
 Blind Sample ID = 25128-75126  Mean = 58.96 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 24 
 Blind Sample ID = 25126-75128  Mean = 121.50 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 20 
 Blind Sample ID = 25126-75124  Mean = 44.08 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 12 
 Blind Sample ID = 25124-75126  Mean = 62.65 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 17 
 Blind Sample ID = 25122-75128  Mean = 124.17 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 12 
 Blind Sample ID = 25122-75124  Mean = 20.95 
 % Relative Standard Deviation = 5.8 
 Number of Observations = 22 
 Blind Sample ID = 25120-75126  Mean = 29.87 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 31 
 Blind Sample ID = 25120-75122  Mean = 64.08 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 12 
 Blind Sample ID = 25120-75118  Mean = 47.64 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 11 
 Blind Sample ID = 25120-75110  Mean = 25.00 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 12 
 Blind Sample ID = 25118-75112  Mean = 10.33 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 12 
 Blind Sample ID = 25114-75106  Mean = 44.67 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 12 
 Blind Sample ID = 25114-75104  Mean = 36.50 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 12 
 Blind Sample ID = 25112-75110  Mean = 9.62 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 12 
 Blind Sample ID = 25112-75106  Mean = 21.29 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 24 
 Blind Sample ID = 25110-75112  Mean = 11.33 
 % Relative Standard Deviation = 6.2 
 Number of Observations = 24 
 Blind Sample ID = 25106-75112  Mean = 22.58 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 12 
 Blind Sample ID = 25104-75112  Mean = 72.50 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 16 
 Blind Sample ID = 2501/7505  Mean = 96.80 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 5 
 Blind Sample ID = 2500/7598
The SGPlot Procedure



- Calcium, FIL, AA, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00915, MCode: AA007
Dates: 10/09/86 through 07/24/96
Open Data Set

 Mean = 0.28 
 % Relative Standard Deviation = 8.8 
 Number of Observations = 4 
 Blind Sample ID = P9  Mean = 0.22 
 % Relative Standard Deviation = 11.1 
 Number of Observations = 34 
 Blind Sample ID = P8  Mean = 0.27 
 % Relative Standard Deviation = 13.1 
 Number of Observations = 8 
 Blind Sample ID = P5  Mean = 4.07 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 3 
 Blind Sample ID = P3  Mean = 1.14 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 5 
 Blind Sample ID = P23  Mean = 0.47 
 % Relative Standard Deviation = 8.4 
 Number of Observations = 14 
 Blind Sample ID = P21  Mean = 0.19 
 % Relative Standard Deviation = 14.8 
 Number of Observations = 11 
 Blind Sample ID = P20  Mean = 0.26 
 % Relative Standard Deviation = 13.2 
 Number of Observations = 14 
 Blind Sample ID = P19  Mean = 0.89 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 23 
 Blind Sample ID = P18  Mean = 0.33 
 % Relative Standard Deviation = 10.7 
 Number of Observations = 35 
 Blind Sample ID = P17  Mean = 0.62 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 52 
 Blind Sample ID = P16  Mean = 0.39 
 % Relative Standard Deviation = 8.7 
 Number of Observations = 32 
 Blind Sample ID = P15  Mean = 3.76 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 40 
 Blind Sample ID = P14  Mean = 0.25 
 % Relative Standard Deviation = 13.3 
 Number of Observations = 37 
 Blind Sample ID = P13  Mean = 0.92 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 29 
 Blind Sample ID = P12  Mean = 2.81 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 49 
 Blind Sample ID = P11  Mean = 1.20 
 % Relative Standard Deviation = 121.6 
 Number of Observations = 14 
 Blind Sample ID =
The SGPlot Procedure



- Calcium, FIL, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00915, MCode: PLA11
Dates: 10/01/86 through 09/27/01
Open Data Set

 Mean = 25.86 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 22 
 Blind Sample ID = STM6  Mean = 71.88 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 16 
 Blind Sample ID = ST98  Mean = 55.51 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 65 
 Blind Sample ID = ST97  Mean = 43.77 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 13 
 Blind Sample ID = ST96  Mean = 69.82 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 17 
 Blind Sample ID = ST95  Mean = 98.68 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 28 
 Blind Sample ID = ST94  Mean = 10.88 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 8 
 Blind Sample ID = ST93  Mean = 73.69 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 13 
 Blind Sample ID = ST85  Mean = 14.43 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 7 
 Blind Sample ID = ST83  Mean = 13.74 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 19 
 Blind Sample ID = ST82  Mean = 51.92 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 12 
 Blind Sample ID = ST81  Mean = 7.54 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 27 
 Blind Sample ID = P31  Mean = 0.14 
 % Relative Standard Deviation = 14.1 
 Number of Observations = 20 
 Blind Sample ID = P30  Mean = 0.46 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 3 
 Blind Sample ID = P26  Mean = 0.36 
 % Relative Standard Deviation = 5.6 
 Number of Observations = 3 
 Blind Sample ID = P24  Mean = 10.18 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 28 
 Blind Sample ID = 75DIW-25155  Mean = 6.37 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25146  Mean = 12.65 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 10 
 Blind Sample ID = 75DIW-25139  Mean = 3.31 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25138  Mean = 9.51 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 14 
 Blind Sample ID = 75DIW-25137  Mean = 5.27 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25130  Mean = 6.40 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 16 
 Blind Sample ID = 67DW-33122  Mean = 20.34 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 64 
 Blind Sample ID = 67DW-33120  Mean = 22.13 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33118  Mean = 4.90 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 32 
 Blind Sample ID = 67DW-33114  Mean = 1.56 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 17 
 Blind Sample ID = 67DW-33113  Mean = 18.73 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33104  Mean = 12.38 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 24 
 Blind Sample ID = 67DIW-33132  Mean = 6.82 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 76.67 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 6 
 Blind Sample ID = 50DW-50124  Mean = 9.70 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 3 
 Blind Sample ID = 50DW-50122  Mean = 6.16 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 17 
 Blind Sample ID = 50DW-50112  Mean = 27.90 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 10 
 Blind Sample ID = 50DW-50104  Mean = 15.18 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 14 
 Blind Sample ID = 50DIW-50145  Mean = 6.48 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 22 
 Blind Sample ID = 50DIW-50138  Mean = 38.89 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 9 
 Blind Sample ID = 50DIW-50128  Mean = 111.54 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 13 
 Blind Sample ID = 5099/5083  Mean = 128.06 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 31 
 Blind Sample ID = 5097/5099  Mean = 65.08 
 % Relative Standard Deviation = 9.4 
 Number of Observations = 25 
 Blind Sample ID = 5097/5001  Mean = 42.22 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 41 
 Blind Sample ID = 5093/5087  Mean = 3.18 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 12 
 Blind Sample ID = 50157-50DIW  Mean = 1.80 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 40 
 Blind Sample ID = 50152-50DIW  Mean = 38.52 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 18 
 Blind Sample ID = 50147-50151  Mean = 35.13 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 16 
 Blind Sample ID = 50145-50147  Mean = 45.24 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 22 
 Blind Sample ID = 50143-50151  Mean = 42.74 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 22 
 Blind Sample ID = 50143-50145  Mean = 66.02 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 18 
 Blind Sample ID = 50140-50144  Mean = 40.94 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 26 
 Blind Sample ID = 50139-50145  Mean = 36.05 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 10 
 Blind Sample ID = 50139-50141  Mean = 35.88 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 48 
 Blind Sample ID = 50138-50140  Mean = 45.81 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 18 
 Blind Sample ID = 50137-50143  Mean = 28.80 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 28 
 Blind Sample ID = 50137-50141  Mean = 44.64 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 16 
 Blind Sample ID = 50137-50139  Mean = 31.03 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 4 
 Blind Sample ID = 50135-50139  Mean = 24.21 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 34 
 Blind Sample ID = 50135-50137  Mean = 51.02 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 18 
 Blind Sample ID = 50134-50140  Mean = 40.11 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 18 
 Blind Sample ID = 50132-50134  Mean = 20.25 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 48 
 Blind Sample ID = 50131-50125  Mean = 28.84 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 24 
 Blind Sample ID = 50130-50132  Mean = 58.83 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 6 
 Blind Sample ID = 50128-50134  Mean = 57.36 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 11 
 Blind Sample ID = 50128-50132  Mean = 79.00 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 4 
 Blind Sample ID = 50126-50124  Mean = 9.96 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 25 
 Blind Sample ID = 50125-50135  Mean = 7.08 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 24 
 Blind Sample ID = 50123-50121  Mean = 7.28 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 24 
 Blind Sample ID = 50121-50125  Mean = 39.59 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 44 
 Blind Sample ID = 50121-50105  Mean = 105.00 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 6 
 Blind Sample ID = 50120-50124  Mean = 53.83 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 47 
 Blind Sample ID = 50115-50103  Mean = 13.50 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 6 
 Blind Sample ID = 50114-50112  Mean = 16.14 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 49 
 Blind Sample ID = 5011/5007  Mean = 10.83 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 12 
 Blind Sample ID = 50106-50112  Mean = 47.21 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 48 
 Blind Sample ID = 50105-50117  Mean = 65.28 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 46 
 Blind Sample ID = 50103-50101  Mean = 33.20 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 25 
 Blind Sample ID = 5007/5003  Mean = 43.15 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 61 
 Blind Sample ID = 5007/5001  Mean = 51.33 
 % Relative Standard Deviation = 24.2 
 Number of Observations = 19 
 Blind Sample ID = 5003/5097  Mean = 63.44 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 36 
 Blind Sample ID = 5003/5001  Mean = 24.95 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 16 
 Blind Sample ID = 50004-50DIW  Mean = 8.51 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 34 
 Blind Sample ID = 33M6/67DW  Mean = 48.73 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6798  Mean = 37.81 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 27 
 Blind Sample ID = 33DW/6797  Mean = 7.52 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 45 
 Blind Sample ID = 33DW/6793  Mean = 9.92 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 16 
 Blind Sample ID = 33DW/6714  Mean = 8.73 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 3 
 Blind Sample ID = 33DW/6712  Mean = 30.19 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 21 
 Blind Sample ID = 33DW/6710  Mean = 48.65 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 23 
 Blind Sample ID = 33DW/6708  Mean = 8.02 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6707  Mean = 6.10 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 13 
 Blind Sample ID = 33DW/6706  Mean = 37.50 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6704  Mean = 36.42 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 26 
 Blind Sample ID = 33DW/6703  Mean = 54.63 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 19 
 Blind Sample ID = 33DW/6702  Mean = 118.75 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 24 
 Blind Sample ID = 33DW/6700  Mean = 5.07 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67126  Mean = 6.03 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 16 
 Blind Sample ID = 33DW-67123  Mean = 13.00 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67122  Mean = 3.41 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 13 
 Blind Sample ID = 33DW-67121  Mean = 41.11 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 53 
 Blind Sample ID = 33DW-67120  Mean = 43.76 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 25 
 Blind Sample ID = 33DW-67118  Mean = 34.31 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 16 
 Blind Sample ID = 33DW-67115  Mean = 9.78 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67114  Mean = 30.70 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 27 
 Blind Sample ID = 33DW-67110  Mean = 5.90 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 10 
 Blind Sample ID = 33DW-67106  Mean = 37.08 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67104  Mean = 24.22 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 49 
 Blind Sample ID = 3398/67DW  Mean = 14.68 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 22 
 Blind Sample ID = 3396/67DW  Mean = 34.39 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 23 
 Blind Sample ID = 3394/67DW  Mean = 7.62 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 29 
 Blind Sample ID = 33127-67133  Mean = 9.13 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 32 
 Blind Sample ID = 33127-67123  Mean = 4.33 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 13 
 Blind Sample ID = 3312/67DW  Mean = 24.60 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 15 
 Blind Sample ID = 3308/67DW  Mean = 3.03 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 36 
 Blind Sample ID = 3306/67DW  Mean = 19.07 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 15 
 Blind Sample ID = 3304/67DW  Mean = 60.47 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 32 
 Blind Sample ID = 3300/67DW  Mean = 76.43 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 7 
 Blind Sample ID = 25M4/7594  Mean = 55.26 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7598  Mean = 41.92 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7597  Mean = 33.71 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 21 
 Blind Sample ID = 25DW/7596  Mean = 54.11 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7595  Mean = 75.11 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 9 
 Blind Sample ID = 25DW/7594  Mean = 10.60 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 5 
 Blind Sample ID = 25DW/7582  Mean = 11.07 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7514  Mean = 9.47 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7512  Mean = 15.86 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7511  Mean = 33.67 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 15 
 Blind Sample ID = 25DW/7510  Mean = 54.90 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 20 
 Blind Sample ID = 25DW/7508  Mean = 9.06 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7507  Mean = 42.31 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 45 
 Blind Sample ID = 25DW/7504  Mean = 41.00 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7503  Mean = 61.35 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7502  Mean = 133.20 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7500  Mean = 5.58 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75126  Mean = 115.71 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75124  Mean = 14.50 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75122  Mean = 3.78 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 23 
 Blind Sample ID = 25DW-75121  Mean = 49.25 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75118  Mean = 3.46 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 30 
 Blind Sample ID = 25DW-75113  Mean = 9.10 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 31 
 Blind Sample ID = 25DW-75112  Mean = 33.50 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75110  Mean = 6.76 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75106  Mean = 55.50 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75105  Mean = 42.25 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75104  Mean = 28.05 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 33 
 Blind Sample ID = 25DIW-75151  Mean = 49.97 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 26 
 Blind Sample ID = 25DIW-75142  Mean = 46.26 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 52 
 Blind Sample ID = 25DIW-75136  Mean = 7.74 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 17 
 Blind Sample ID = 25DIW-75135  Mean = 32.53 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75134  Mean = 27.33 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 6 
 Blind Sample ID = 25DIW-75132  Mean = 23.22 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 18 
 Blind Sample ID = 25DIW-75131  Mean = 15.50 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75130  Mean = 57.31 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75128  Mean = 6.62 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 56 
 Blind Sample ID = 25DIW-75127  Mean = 103.13 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 16 
 Blind Sample ID = 2599/7501  Mean = 78.89 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 9 
 Blind Sample ID = 2598/7502  Mean = 66.14 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 7 
 Blind Sample ID = 2596/7598  Mean = 22.67 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 9 
 Blind Sample ID = 2596/7514  Mean = 45.07 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 14 
 Blind Sample ID = 2594/75M6  Mean = 59.67 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 9 
 Blind Sample ID = 2594/7596  Mean = 37.98 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 27 
 Blind Sample ID = 25159-75155  Mean = 21.11 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 12 
 Blind Sample ID = 25157-75159  Mean = 14.72 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 28 
 Blind Sample ID = 25155-75157  Mean = 30.99 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 12 
 Blind Sample ID = 25155-75153  Mean = 38.29 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 28 
 Blind Sample ID = 25155-75151  Mean = 40.79 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 12 
 Blind Sample ID = 25155-75147  Mean = 5.98 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 40 
 Blind Sample ID = 25152-75150  Mean = 40.13 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 26 
 Blind Sample ID = 25151-75147  Mean = 39.43 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 22 
 Blind Sample ID = 25150-75004  Mean = 33.22 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 26 
 Blind Sample ID = 25147-75145  Mean = 60.14 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 18 
 Blind Sample ID = 25146-75144  Mean = 16.38 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 16 
 Blind Sample ID = 25146-75138  Mean = 68.19 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 28 
 Blind Sample ID = 25144-75142  Mean = 43.34 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 34 
 Blind Sample ID = 25141-75139  Mean = 24.69 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 32 
 Blind Sample ID = 25140-75138  Mean = 36.85 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 20 
 Blind Sample ID = 2514/7596  Mean = 41.53 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 24 
 Blind Sample ID = 25139-75137  Mean = 56.67 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 28 
 Blind Sample ID = 25134-75136  Mean = 69.08 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 12 
 Blind Sample ID = 25134-75128  Mean = 8.39 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 16 
 Blind Sample ID = 25133-75127  Mean = 41.50 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 4 
 Blind Sample ID = 25132-75134  Mean = 24.84 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 30 
 Blind Sample ID = 25132-75130  Mean = 63.56 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 9 
 Blind Sample ID = 25130-75128  Mean = 50.80 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 5 
 Blind Sample ID = 25128-75134  Mean = 9.24 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 42 
 Blind Sample ID = 25127-75125  Mean = 8.99 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 104 
 Blind Sample ID = 25125-75127  Mean = 5.86 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 62 
 Blind Sample ID = 25125-75113  Mean = 8.85 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 24 
 Blind Sample ID = 25123-75127  Mean = 36.67 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 12 
 Blind Sample ID = 2512/7596  Mean = 8.74 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 56 
 Blind Sample ID = 25117-75113  Mean = 22.31 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 55 
 Blind Sample ID = 25101-75113  Mean = 53.46 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 13 
 Blind Sample ID = 2510/7504  Mean = 63.27 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 15 
 Blind Sample ID = 2509/7501  Mean = 60.29 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 7 
 Blind Sample ID = 2508/7504  Mean = 55.00 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 6 
 Blind Sample ID = 2506/7508  Mean = 71.78 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 23 
 Blind Sample ID = 2505/7501  Mean = 47.29 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 7 
 Blind Sample ID = 2504/7510  Mean = 74.70 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 10 
 Blind Sample ID = 2504/7502  Mean = 61.53 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 17 
 Blind Sample ID = 2502/7504  Mean = 167.22 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 18 
 Blind Sample ID = 2501/7599  Mean = 45.61 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 44 
 Blind Sample ID = 2501/7509  Mean = 71.15 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 13 
 Blind Sample ID = 2501/7505  Mean = 97.91 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 11 
 Blind Sample ID = 2500/7598  Mean = 56.78 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 9 
 Blind Sample ID = 2500/7514  Mean = 54.62 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 13 
 Blind Sample ID = 2500/7512  Mean = 28.41 
 % Relative Standard Deviation = 60.9 
 Number of Observations = 28 
 Blind Sample ID =
The SGPlot Procedure



- Calcium, FIL, ICP-OES, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00915, MCode: PLA09
Dates: 10/08/92 through 09/26/96
Open Data Set

 Mean = 5.36 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 8 
 Blind Sample ID = 75DW-25117  Mean = 2.35 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 11 
 Blind Sample ID = 75DIW-25125  Mean = 1.56 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 8 
 Blind Sample ID = 67DW-33113  Mean = 3.40 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 8 
 Blind Sample ID = 33DW-67121  Mean = 3.86 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75121
The SGPlot Procedure



- Calcium, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00916, MCode: PLA15
Dates: 10/14/99 through 09/14/01
Open Data Set

 Mean = 10.30 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 4 
 Blind Sample ID = 75DIW-25155  Mean = 2.96 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 4 
 Blind Sample ID = 50157-50DIW  Mean = 19.08 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 4 
 Blind Sample ID = 50155-50DIW  Mean = 30.36 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 4 
 Blind Sample ID = 25DIW-75147  Mean = 19.96 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 4 
 Blind Sample ID = 25157-75159  Mean = 40.40 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 3 
 Blind Sample ID = 25155-75147
The SGPlot Procedure



- Chloride, FIL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00940, MCode: ADF02
Dates: 10/01/86 through 12/07/87
Open Data Set

 Mean = 11.86 
 % Relative Standard Deviation = 9.8 
 Number of Observations = 14 
 Blind Sample ID = STM6  Mean = 66.78 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 18 
 Blind Sample ID = ST94  Mean = 2.73 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 20 
 Blind Sample ID = ST82  Mean = 6.85 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 8 
 Blind Sample ID = 50M6/50DW  Mean = 1.38 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5082  Mean = 39.50 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 4 
 Blind Sample ID = 5094/50M6  Mean = 32.67 
 % Relative Standard Deviation = 9.4 
 Number of Observations = 6 
 Blind Sample ID = 5094/50M4  Mean = 33.43 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 7 
 Blind Sample ID = 5094/5082  Mean = 4.59 
 % Relative Standard Deviation = 9.5 
 Number of Observations = 33 
 Blind Sample ID = 33M6/67DW  Mean = 47.50 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 8 
 Blind Sample ID = 25M4/7594  Mean = 48.67 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7594  Mean = 2.15 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 6 
 Blind Sample ID = 25DW/7582  Mean = 24.94 
 % Relative Standard Deviation = 8.1 
 Number of Observations = 16 
 Blind Sample ID = 2594/75M6  Mean = 42.00 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 3 
 Blind Sample ID = 2588/7586  Mean = 2.47 
 % Relative Standard Deviation = 16.4 
 Number of Observations = 3 
 Blind Sample ID = 2582/75M4  Mean = 13.00 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 11 
 Blind Sample ID =
The SGPlot Procedure



- Chloride, FIL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00940, MCode: CL031
Dates: 05/28/87 through 12/23/93
Open Data Set

 Mean = 12.63 
 % Relative Standard Deviation = 14.6 
 Number of Observations = 8 
 Blind Sample ID = STM6  Mean = 33.50 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 16 
 Blind Sample ID = ST98  Mean = 38.00 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 17 
 Blind Sample ID = ST96  Mean = 65.36 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 11 
 Blind Sample ID = ST94  Mean = 79.13 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 15 
 Blind Sample ID = ST00  Mean = 0.28 
 % Relative Standard Deviation = 18.2 
 Number of Observations = 4 
 Blind Sample ID = P8  Mean = 18.50 
 % Relative Standard Deviation = 7.0 
 Number of Observations = 4 
 Blind Sample ID = 67DW-33122  Mean = 2.50 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 39 
 Blind Sample ID = 67DW-33120  Mean = 17.86 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 14 
 Blind Sample ID = 67DW-33118  Mean = 17.83 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5098  Mean = 20.50 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5096  Mean = 249.17 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 12 
 Blind Sample ID = 50DW/5008  Mean = 34.60 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 5 
 Blind Sample ID = 50DW/5004  Mean = 38.00 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5000  Mean = 40.60 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 5 
 Blind Sample ID = 50DW-50124  Mean = 28.67 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 3 
 Blind Sample ID = 50DW-50122  Mean = 26.58 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50118  Mean = 22.04 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 23 
 Blind Sample ID = 50DW-50112  Mean = 16.14 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 7 
 Blind Sample ID = 5098/50DW  Mean = 51.50 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 6 
 Blind Sample ID = 5098/5004  Mean = 31.88 
 % Relative Standard Deviation = 9.3 
 Number of Observations = 8 
 Blind Sample ID = 5094/50M4  Mean = 52.00 
 % Relative Standard Deviation = 7.7 
 Number of Observations = 3 
 Blind Sample ID = 50126-50124  Mean = 37.67 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 3 
 Blind Sample ID = 50126-50122  Mean = 28.08 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 12 
 Blind Sample ID = 50120-50112  Mean = 162.22 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 9 
 Blind Sample ID = 50110-50118  Mean = 158.33 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 12 
 Blind Sample ID = 50110-50112  Mean = 377.14 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 7 
 Blind Sample ID = 5010/5008  Mean = 167.50 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 8 
 Blind Sample ID = 5010/5004  Mean = 34.65 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 17 
 Blind Sample ID = 5004/50DW  Mean = 57.20 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 5 
 Blind Sample ID = 5002/5004  Mean = 56.83 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 12 
 Blind Sample ID = 5000/5098  Mean = 59.67 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 6 
 Blind Sample ID = 5000/5096  Mean = 60.33 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 6 
 Blind Sample ID = 5000/5002  Mean = 21.45 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6798  Mean = 176.00 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6710  Mean = 339.00 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6708  Mean = 45.50 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6704  Mean = 27.85 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6702  Mean = 51.30 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6700  Mean = 13.71 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 7 
 Blind Sample ID = 33DW-67126  Mean = 36.00 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 7 
 Blind Sample ID = 33DW-67122  Mean = 5.24 
 % Relative Standard Deviation = 6.2 
 Number of Observations = 27 
 Blind Sample ID = 33DW-67120  Mean = 36.65 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67118  Mean = 177.60 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 25 
 Blind Sample ID = 33DW-67110  Mean = 11.02 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 48 
 Blind Sample ID = 3398/67DW  Mean = 12.09 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 22 
 Blind Sample ID = 3396/67DW  Mean = 20.61 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 23 
 Blind Sample ID = 3394/67DW  Mean = 162.50 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 4 
 Blind Sample ID = 3308/67DW  Mean = 4.41 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 18 
 Blind Sample ID = 3306/67DW  Mean = 21.87 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 15 
 Blind Sample ID = 3304/67DW  Mean = 24.59 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 22 
 Blind Sample ID = 3300/67DW  Mean = 49.40 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 5 
 Blind Sample ID = 25M4/7594  Mean = 24.63 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7598  Mean = 27.78 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 9 
 Blind Sample ID = 25DW/7596  Mean = 203.33 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 3 
 Blind Sample ID = 25DW/7510  Mean = 385.00 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7508  Mean = 52.13 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 38 
 Blind Sample ID = 25DW/7504  Mean = 31.30 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7502  Mean = 58.45 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 22 
 Blind Sample ID = 25DW/7500  Mean = 59.25 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 4 
 Blind Sample ID = 25DW-75124  Mean = 40.25 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 4 
 Blind Sample ID = 25DW-75122  Mean = 41.92 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 13 
 Blind Sample ID = 25DW-75118  Mean = 35.50 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75112  Mean = 196.25 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75110  Mean = 40.89 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 9 
 Blind Sample ID = 2598/7502  Mean = 68.91 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 11 
 Blind Sample ID = 2598/7500  Mean = 35.44 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 9 
 Blind Sample ID = 2596/7598  Mean = 44.00 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 12 
 Blind Sample ID = 2594/7596  Mean = 77.50 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 10 
 Blind Sample ID = 2594/7500  Mean = 204.00 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 5 
 Blind Sample ID = 2506/7510  Mean = 215.00 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 4 
 Blind Sample ID = 2504/7510  Mean = 49.82 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 11 
 Blind Sample ID = 2504/7502  Mean = 63.50 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 16 
 Blind Sample ID = 2502/7504  Mean = 45.45 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 20 
 Blind Sample ID = 2500/7598  Mean = 21.40 
 % Relative Standard Deviation = 45.8 
 Number of Observations = 8 
 Blind Sample ID =
The SGPlot Procedure



- Chloride, FIL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00940, MCode: IC010
Dates: 10/08/91 through 01/29/92
Open Data Set

 Mean = 0.40 
 % Relative Standard Deviation = 18.8 
 Number of Observations = 4 
 Blind Sample ID = P17  Mean = 0.89 
 % Relative Standard Deviation = 13.8 
 Number of Observations = 5 
 Blind Sample ID = P16  Mean = 0.59 
 % Relative Standard Deviation = 50.5 
 Number of Observations = 8 
 Blind Sample ID = P14
The SGPlot Procedure



- Chloride, FIL, IC -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00940, MCode: IC022
Dates: 02/28/90 through 09/27/01
Open Data Set

 Mean = 1.41 
 % Relative Standard Deviation = 7.7 
 Number of Observations = 27 
 Blind Sample ID = P31  Mean = 0.21 
 % Relative Standard Deviation = 11.9 
 Number of Observations = 22 
 Blind Sample ID = P30  Mean = 11.54 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25146  Mean = 18.91 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 30 
 Blind Sample ID = 75DIW-25144  Mean = 8.61 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 21 
 Blind Sample ID = 75DIW-25138  Mean = 5.52 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25130  Mean = 18.25 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 12 
 Blind Sample ID = 67DW-33122  Mean = 2.57 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 24 
 Blind Sample ID = 67DW-33120  Mean = 19.84 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 32 
 Blind Sample ID = 67DW-33114  Mean = 25.93 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 14 
 Blind Sample ID = 67DW-33104  Mean = 17.83 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 24 
 Blind Sample ID = 67DIW-33132  Mean = 7.51 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 18.06 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 16 
 Blind Sample ID = 67DIW-33122  Mean = 2.55 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 20 
 Blind Sample ID = 67DIW-33120  Mean = 20.14 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5096  Mean = 23.64 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5012  Mean = 255.00 
 % Relative Standard Deviation = 6.8 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5008  Mean = 33.89 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 9 
 Blind Sample ID = 50DW/5004  Mean = 40.42 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 19 
 Blind Sample ID = 50DW-50124  Mean = 27.56 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 9 
 Blind Sample ID = 50DW-50122  Mean = 24.69 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 29 
 Blind Sample ID = 50DW-50112  Mean = 36.46 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 13 
 Blind Sample ID = 50DW-50104  Mean = 16.91 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 51 
 Blind Sample ID = 50DIW-50138  Mean = 46.40 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 52 
 Blind Sample ID = 50DIW-50136  Mean = 11.07 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 30 
 Blind Sample ID = 50DIW-50130  Mean = 49.73 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 37 
 Blind Sample ID = 50DIW-50128  Mean = 19.15 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 13 
 Blind Sample ID = 5096/50DW  Mean = 8.53 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 40 
 Blind Sample ID = 50152-50DIW  Mean = 105.88 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 34 
 Blind Sample ID = 50142-50144  Mean = 52.54 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 18 
 Blind Sample ID = 50140-50144  Mean = 47.94 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 16 
 Blind Sample ID = 5014/5096  Mean = 52.22 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 9 
 Blind Sample ID = 5014/5012  Mean = 30.05 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 48 
 Blind Sample ID = 50138-50140  Mean = 64.47 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 30 
 Blind Sample ID = 50136-50138  Mean = 45.83 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 18 
 Blind Sample ID = 50134-50140  Mean = 79.12 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 67 
 Blind Sample ID = 50134-50136  Mean = 61.27 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 18 
 Blind Sample ID = 50132-50134  Mean = 57.98 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 30 
 Blind Sample ID = 50130-50136  Mean = 39.14 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 24 
 Blind Sample ID = 50130-50132  Mean = 81.42 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 12 
 Blind Sample ID = 50128-50134  Mean = 76.78 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 18 
 Blind Sample ID = 50128-50132  Mean = 59.92 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 12 
 Blind Sample ID = 50126-50128  Mean = 50.89 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 9 
 Blind Sample ID = 50126-50124  Mean = 37.44 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 9 
 Blind Sample ID = 50126-50122  Mean = 53.08 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 24 
 Blind Sample ID = 50120-50128  Mean = 44.60 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 10 
 Blind Sample ID = 50120-50124  Mean = 53.00 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 9 
 Blind Sample ID = 50114-50112  Mean = 32.64 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 14 
 Blind Sample ID = 50106-50112  Mean = 45.00 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 6 
 Blind Sample ID = 50106-50104  Mean = 393.33 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 6 
 Blind Sample ID = 5010/5008  Mean = 177.50 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 8 
 Blind Sample ID = 5010/5004  Mean = 41.50 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 10 
 Blind Sample ID = 5006/5004  Mean = 35.00 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 6 
 Blind Sample ID = 5004/50DW  Mean = 25.32 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 16 
 Blind Sample ID = 50004-50DIW  Mean = 61.00 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 13 
 Blind Sample ID = 5000/5096  Mean = 39.05 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 22 
 Blind Sample ID = 33DW/6714  Mean = 30.47 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 15 
 Blind Sample ID = 33DW/6712  Mean = 183.00 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6710  Mean = 334.62 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 13 
 Blind Sample ID = 33DW/6708  Mean = 9.42 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 12 
 Blind Sample ID = 33DW/6706  Mean = 52.75 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 4 
 Blind Sample ID = 33DW/6700  Mean = 13.44 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 16 
 Blind Sample ID = 33DW-67126  Mean = 36.67 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 21 
 Blind Sample ID = 33DW-67122  Mean = 5.11 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67120  Mean = 38.58 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 24 
 Blind Sample ID = 33DW-67114  Mean = 9.14 
 % Relative Standard Deviation = 7.3 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67106  Mean = 49.50 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67104  Mean = 43.09 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67134  Mean = 36.64 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67132  Mean = 14.39 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67130  Mean = 13.92 
 % Relative Standard Deviation = 6.0 
 Number of Observations = 24 
 Blind Sample ID = 33DIW-67126  Mean = 37.05 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67122  Mean = 5.21 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 24 
 Blind Sample ID = 33DIW-67120  Mean = 16.31 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 13 
 Blind Sample ID = 3312/67DW  Mean = 173.64 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 11 
 Blind Sample ID = 3308/67DW  Mean = 4.82 
 % Relative Standard Deviation = 14.7 
 Number of Observations = 17 
 Blind Sample ID = 3306/67DW  Mean = 26.00 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 10 
 Blind Sample ID = 3300/67DW  Mean = 30.79 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7596  Mean = 43.00 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7514  Mean = 35.25 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 24 
 Blind Sample ID = 25DW/7512  Mean = 203.33 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7510  Mean = 380.00 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 8 
 Blind Sample ID = 25DW/7508  Mean = 53.86 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 7 
 Blind Sample ID = 25DW/7504  Mean = 14.92 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 12 
 Blind Sample ID = 25DW-75126  Mean = 62.18 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 11 
 Blind Sample ID = 25DW-75124  Mean = 41.67 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 12 
 Blind Sample ID = 25DW-75122  Mean = 43.67 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 3 
 Blind Sample ID = 25DW-75118  Mean = 37.06 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75112  Mean = 10.41 
 % Relative Standard Deviation = 9.8 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75106  Mean = 55.38 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75104  Mean = 13.38 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 40 
 Blind Sample ID = 25DIW-75150  Mean = 59.23 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 59 
 Blind Sample ID = 25DIW-75144  Mean = 100.10 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 24 
 Blind Sample ID = 25DIW-75142  Mean = 25.75 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 30 
 Blind Sample ID = 25DIW-75138  Mean = 70.10 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 52 
 Blind Sample ID = 25DIW-75136  Mean = 49.93 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75134  Mean = 41.75 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75132  Mean = 16.50 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75130  Mean = 74.50 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 32 
 Blind Sample ID = 25DIW-75128  Mean = 15.19 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75126  Mean = 41.69 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75122  Mean = 5.81 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75120  Mean = 53.20 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 10 
 Blind Sample ID = 2596/7514  Mean = 17.71 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 40 
 Blind Sample ID = 25152-75150  Mean = 71.60 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 18 
 Blind Sample ID = 25146-75144  Mean = 112.07 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 33 
 Blind Sample ID = 25146-75142  Mean = 38.70 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 16 
 Blind Sample ID = 25146-75138  Mean = 56.98 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 26 
 Blind Sample ID = 25144-75146  Mean = 119.55 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 28 
 Blind Sample ID = 25144-75142  Mean = 32.39 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 32 
 Blind Sample ID = 25140-75138  Mean = 44.75 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 20 
 Blind Sample ID = 2514/7596  Mean = 27.97 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 25 
 Blind Sample ID = 25138-75140  Mean = 85.57 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 28 
 Blind Sample ID = 25134-75136  Mean = 30.62 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 24 
 Blind Sample ID = 25132-75130  Mean = 80.17 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 6 
 Blind Sample ID = 25130-75128  Mean = 89.80 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 5 
 Blind Sample ID = 25122-75128  Mean = 44.25 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 8 
 Blind Sample ID = 25120-75122  Mean = 42.83 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 12 
 Blind Sample ID = 2512/7596  Mean = 121.11 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 9 
 Blind Sample ID = 2510/7504  Mean = 180.00 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 7 
 Blind Sample ID = 2508/7504  Mean = 212.00 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 5 
 Blind Sample ID = 2506/7510  Mean = 377.50 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 4 
 Blind Sample ID = 2506/7508  Mean = 230.00 
 % Relative Standard Deviation = 7.5 
 Number of Observations = 3 
 Blind Sample ID = 2504/7510  Mean = 24.85 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 39 
 Blind Sample ID = 25004-75152  Mean = 62.11 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 9 
 Blind Sample ID = 2500/7514  Mean = 56.54 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 13 
 Blind Sample ID = 2500/7512  Mean = 33.88 
 % Relative Standard Deviation = 82.3 
 Number of Observations = 4 
 Blind Sample ID =
The SGPlot Procedure



- Chloride, FIL, IC, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00940, MCode: IC024
Dates: 10/09/86 through 09/28/01
Open Data Set

 Mean = 0.11 
 % Relative Standard Deviation = 31.8 
 Number of Observations = 29 
 Blind Sample ID = P8  Mean = 0.15 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 8 
 Blind Sample ID = P5  Mean = 2.54 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 7 
 Blind Sample ID = P33  Mean = 1.61 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 7 
 Blind Sample ID = P32  Mean = 1.40 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 10 
 Blind Sample ID = P31  Mean = 0.23 
 % Relative Standard Deviation = 19.5 
 Number of Observations = 4 
 Blind Sample ID = P30  Mean = 0.16 
 % Relative Standard Deviation = 29.0 
 Number of Observations = 8 
 Blind Sample ID = P29  Mean = 3.51 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 4 
 Blind Sample ID = P28  Mean = 1.25 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 4 
 Blind Sample ID = P27  Mean = 1.26 
 % Relative Standard Deviation = 7.8 
 Number of Observations = 4 
 Blind Sample ID = P25  Mean = 1.19 
 % Relative Standard Deviation = 8.2 
 Number of Observations = 12 
 Blind Sample ID = P24  Mean = 0.19 
 % Relative Standard Deviation = 36.3 
 Number of Observations = 14 
 Blind Sample ID = P23  Mean = 3.95 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 23 
 Blind Sample ID = P21  Mean = 0.09 
 % Relative Standard Deviation = 27.6 
 Number of Observations = 16 
 Blind Sample ID = P20  Mean = 1.19 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 14 
 Blind Sample ID = P19  Mean = 0.89 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 22 
 Blind Sample ID = P18  Mean = 0.38 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 32 
 Blind Sample ID = P17  Mean = 0.99 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 49 
 Blind Sample ID = P16  Mean = 1.38 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 32 
 Blind Sample ID = P15  Mean = 0.45 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 34 
 Blind Sample ID = P14  Mean = 0.08 
 % Relative Standard Deviation = 17.3 
 Number of Observations = 36 
 Blind Sample ID = P13  Mean = 0.65 
 % Relative Standard Deviation = 19.8 
 Number of Observations = 27 
 Blind Sample ID = P12  Mean = 2.32 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 49 
 Blind Sample ID = P11  Mean = 0.33 
 % Relative Standard Deviation = 82.5 
 Number of Observations = 14 
 Blind Sample ID =
The SGPlot Procedure



- Fluoride, FIL, IC -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00950, MCode: IC021
Dates: 01/22/90 through 12/23/93
Open Data Set

 Mean = 0.20 
 % Relative Standard Deviation = 11.5 
 Number of Observations = 39 
 Blind Sample ID = 67DW-33120  Mean = 0.28 
 % Relative Standard Deviation = 20.0 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33118  Mean = 0.23 
 % Relative Standard Deviation = 22.9 
 Number of Observations = 32 
 Blind Sample ID = 67DW-33114  Mean = 0.63 
 % Relative Standard Deviation = 20.4 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33104  Mean = 0.71 
 % Relative Standard Deviation = 15.8 
 Number of Observations = 13 
 Blind Sample ID = 50DW/5096  Mean = 0.41 
 % Relative Standard Deviation = 12.9 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5012  Mean = 0.15 
 % Relative Standard Deviation = 38.5 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5008  Mean = 0.93 
 % Relative Standard Deviation = 10.7 
 Number of Observations = 9 
 Blind Sample ID = 50DW/5004  Mean = 0.44 
 % Relative Standard Deviation = 12.4 
 Number of Observations = 5 
 Blind Sample ID = 50DW-50124  Mean = 0.17 
 % Relative Standard Deviation = 34.6 
 Number of Observations = 3 
 Blind Sample ID = 50DW-50122  Mean = 0.45 
 % Relative Standard Deviation = 11.6 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50118  Mean = 0.39 
 % Relative Standard Deviation = 15.2 
 Number of Observations = 53 
 Blind Sample ID = 50DW-50112  Mean = 0.87 
 % Relative Standard Deviation = 27.5 
 Number of Observations = 13 
 Blind Sample ID = 50DW-50104  Mean = 0.64 
 % Relative Standard Deviation = 13.2 
 Number of Observations = 14 
 Blind Sample ID = 5096/50DW  Mean = 1.13 
 % Relative Standard Deviation = 10.9 
 Number of Observations = 15 
 Blind Sample ID = 5014/5096  Mean = 0.69 
 % Relative Standard Deviation = 12.7 
 Number of Observations = 10 
 Blind Sample ID = 5014/5012  Mean = 0.87 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 3 
 Blind Sample ID = 50126-50124  Mean = 0.62 
 % Relative Standard Deviation = 9.9 
 Number of Observations = 12 
 Blind Sample ID = 50120-50112  Mean = 0.76 
 % Relative Standard Deviation = 9.2 
 Number of Observations = 10 
 Blind Sample ID = 50114-50112  Mean = 0.48 
 % Relative Standard Deviation = 8.1 
 Number of Observations = 12 
 Blind Sample ID = 50110-50118  Mean = 0.39 
 % Relative Standard Deviation = 20.2 
 Number of Observations = 12 
 Blind Sample ID = 50110-50112  Mean = 0.56 
 % Relative Standard Deviation = 8.8 
 Number of Observations = 14 
 Blind Sample ID = 50106-50112  Mean = 1.35 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 6 
 Blind Sample ID = 50106-50104  Mean = 0.34 
 % Relative Standard Deviation = 16.1 
 Number of Observations = 5 
 Blind Sample ID = 5010/5008  Mean = 1.00 
 % Relative Standard Deviation = 16.0 
 Number of Observations = 8 
 Blind Sample ID = 5010/5004  Mean = 1.11 
 % Relative Standard Deviation = 13.8 
 Number of Observations = 9 
 Blind Sample ID = 5006/5004  Mean = 0.87 
 % Relative Standard Deviation = 8.7 
 Number of Observations = 7 
 Blind Sample ID = 5004/50DW  Mean = 1.12 
 % Relative Standard Deviation = 8.1 
 Number of Observations = 13 
 Blind Sample ID = 5000/5096  Mean = 0.46 
 % Relative Standard Deviation = 14.8 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6714  Mean = 0.52 
 % Relative Standard Deviation = 18.1 
 Number of Observations = 15 
 Blind Sample ID = 33DW/6712  Mean = 0.20 
 % Relative Standard Deviation = 43.3 
 Number of Observations = 9 
 Blind Sample ID = 33DW/6710  Mean = 0.23 
 % Relative Standard Deviation = 39.4 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6708  Mean = 0.14 
 % Relative Standard Deviation = 60.2 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6706  Mean = 0.53 
 % Relative Standard Deviation = 10.8 
 Number of Observations = 3 
 Blind Sample ID = 33DW/6700  Mean = 0.38 
 % Relative Standard Deviation = 14.4 
 Number of Observations = 25 
 Blind Sample ID = 33DW-67120  Mean = 0.58 
 % Relative Standard Deviation = 7.9 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67118  Mean = 0.42 
 % Relative Standard Deviation = 15.6 
 Number of Observations = 24 
 Blind Sample ID = 33DW-67114  Mean = 0.11 
 % Relative Standard Deviation = 39.7 
 Number of Observations = 27 
 Blind Sample ID = 33DW-67110  Mean = 0.20 
 % Relative Standard Deviation = 24.9 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67106  Mean = 1.28 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67104  Mean = 0.25 
 % Relative Standard Deviation = 31.5 
 Number of Observations = 13 
 Blind Sample ID = 3312/67DW  Mean = 0.14 
 % Relative Standard Deviation = 51.9 
 Number of Observations = 17 
 Blind Sample ID = 3306/67DW  Mean = 0.30 
 % Relative Standard Deviation = 47.1 
 Number of Observations = 10 
 Blind Sample ID = 3300/67DW  Mean = 1.07 
 % Relative Standard Deviation = 9.6 
 Number of Observations = 13 
 Blind Sample ID = 25DW/7596  Mean = 0.50 
 % Relative Standard Deviation = 23.9 
 Number of Observations = 15 
 Blind Sample ID = 25DW/7514  Mean = 0.53 
 % Relative Standard Deviation = 13.1 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7512  Mean = 0.28 
 % Relative Standard Deviation = 15.9 
 Number of Observations = 9 
 Blind Sample ID = 25DW/7510  Mean = 0.18 
 % Relative Standard Deviation = 50.7 
 Number of Observations = 8 
 Blind Sample ID = 25DW/7508  Mean = 1.50 
 % Relative Standard Deviation = 22.3 
 Number of Observations = 6 
 Blind Sample ID = 25DW/7504  Mean = 0.68 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 4 
 Blind Sample ID = 25DW-75124  Mean = 0.66 
 % Relative Standard Deviation = 7.5 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75118  Mean = 0.57 
 % Relative Standard Deviation = 10.0 
 Number of Observations = 31 
 Blind Sample ID = 25DW-75112  Mean = 0.12 
 % Relative Standard Deviation = 33.9 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75110  Mean = 0.22 
 % Relative Standard Deviation = 25.5 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75106  Mean = 1.74 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75104  Mean = 0.86 
 % Relative Standard Deviation = 17.5 
 Number of Observations = 10 
 Blind Sample ID = 2596/7514  Mean = 1.19 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 20 
 Blind Sample ID = 2514/7596  Mean = 1.21 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 12 
 Blind Sample ID = 2512/7596  Mean = 1.51 
 % Relative Standard Deviation = 9.7 
 Number of Observations = 7 
 Blind Sample ID = 2510/7504  Mean = 1.43 
 % Relative Standard Deviation = 11.4 
 Number of Observations = 6 
 Blind Sample ID = 2508/7504  Mean = 0.26 
 % Relative Standard Deviation = 58.3 
 Number of Observations = 5 
 Blind Sample ID = 2506/7510  Mean = 0.25 
 % Relative Standard Deviation = 23.1 
 Number of Observations = 4 
 Blind Sample ID = 2506/7508  Mean = 0.69 
 % Relative Standard Deviation = 18.4 
 Number of Observations = 9 
 Blind Sample ID = 2500/7514  Mean = 0.75 
 % Relative Standard Deviation = 10.6 
 Number of Observations = 12 
 Blind Sample ID = 2500/7512  Mean = 0.20 
 % Relative Standard Deviation = 40.8 
 Number of Observations = 4 
 Blind Sample ID =
The SGPlot Procedure



- Fluoride, FIL, IC, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00950, MCode: IC024
Dates: 10/09/86 through 09/28/01
Open Data Set

 Mean = 0.06 
 % Relative Standard Deviation = 175.6 
 Number of Observations = 24 
 Blind Sample ID = P8  Mean = 0.02 
 % Relative Standard Deviation = 38.6 
 Number of Observations = 8 
 Blind Sample ID = P5  Mean = 0.12 
 % Relative Standard Deviation = 20.6 
 Number of Observations = 7 
 Blind Sample ID = P33  Mean = 0.22 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 7 
 Blind Sample ID = P32  Mean = 0.39 
 % Relative Standard Deviation = 12.3 
 Number of Observations = 9 
 Blind Sample ID = P31  Mean = 0.20 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 4 
 Blind Sample ID = P30  Mean = 0.16 
 % Relative Standard Deviation = 10.8 
 Number of Observations = 3 
 Blind Sample ID = P3  Mean = 0.06 
 % Relative Standard Deviation = 17.4 
 Number of Observations = 8 
 Blind Sample ID = P29  Mean = 0.07 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 4 
 Blind Sample ID = P28  Mean = 0.10 
 % Relative Standard Deviation = 17.6 
 Number of Observations = 4 
 Blind Sample ID = P27  Mean = 0.04 
 % Relative Standard Deviation = 38.1 
 Number of Observations = 3 
 Blind Sample ID = P26  Mean = 0.16 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 4 
 Blind Sample ID = P25  Mean = 0.11 
 % Relative Standard Deviation = 16.1 
 Number of Observations = 12 
 Blind Sample ID = P24  Mean = 0.12 
 % Relative Standard Deviation = 12.8 
 Number of Observations = 14 
 Blind Sample ID = P23  Mean = 0.06 
 % Relative Standard Deviation = 60.4 
 Number of Observations = 17 
 Blind Sample ID = P21  Mean = 0.09 
 % Relative Standard Deviation = 14.5 
 Number of Observations = 15 
 Blind Sample ID = P20  Mean = 0.03 
 % Relative Standard Deviation = 160.4 
 Number of Observations = 15 
 Blind Sample ID = P19  Mean = 0.03 
 % Relative Standard Deviation = 44.8 
 Number of Observations = 22 
 Blind Sample ID = P18  Mean = 0.02 
 % Relative Standard Deviation = 80.2 
 Number of Observations = 36 
 Blind Sample ID = P17  Mean = 0.14 
 % Relative Standard Deviation = 19.8 
 Number of Observations = 55 
 Blind Sample ID = P16  Mean = 0.18 
 % Relative Standard Deviation = 16.3 
 Number of Observations = 22 
 Blind Sample ID = P15  Mean = 0.21 
 % Relative Standard Deviation = 10.8 
 Number of Observations = 42 
 Blind Sample ID = P14  Mean = 0.02 
 % Relative Standard Deviation = 87.4 
 Number of Observations = 36 
 Blind Sample ID = P13  Mean = 0.06 
 % Relative Standard Deviation = 216.6 
 Number of Observations = 29 
 Blind Sample ID = P12  Mean = 0.05 
 % Relative Standard Deviation = 43.7 
 Number of Observations = 49 
 Blind Sample ID = P11  Mean = 0.05 
 % Relative Standard Deviation = 142.7 
 Number of Observations = 14 
 Blind Sample ID =
The SGPlot Procedure



- Fluoride, FIL, ISE -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00950, MCode: ISE05
Dates: 10/01/86 through 09/27/01
Open Data Set

 Mean = 0.86 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 22 
 Blind Sample ID = STM6  Mean = 0.21 
 % Relative Standard Deviation = 21.5 
 Number of Observations = 16 
 Blind Sample ID = ST98  Mean = 1.31 
 % Relative Standard Deviation = 13.9 
 Number of Observations = 17 
 Blind Sample ID = ST96  Mean = 2.26 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 28 
 Blind Sample ID = ST94  Mean = 0.58 
 % Relative Standard Deviation = 10.6 
 Number of Observations = 20 
 Blind Sample ID = ST82  Mean = 0.88 
 % Relative Standard Deviation = 6.2 
 Number of Observations = 18 
 Blind Sample ID = ST00  Mean = 0.37 
 % Relative Standard Deviation = 7.9 
 Number of Observations = 28 
 Blind Sample ID = P31  Mean = 0.21 
 % Relative Standard Deviation = 14.7 
 Number of Observations = 24 
 Blind Sample ID = P30  Mean = 0.28 
 % Relative Standard Deviation = 10.4 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25146  Mean = 0.20 
 % Relative Standard Deviation = 10.8 
 Number of Observations = 21 
 Blind Sample ID = 75DIW-25138  Mean = 0.33 
 % Relative Standard Deviation = 11.4 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25130  Mean = 0.21 
 % Relative Standard Deviation = 21.1 
 Number of Observations = 24 
 Blind Sample ID = 67DW-33120  Mean = 0.18 
 % Relative Standard Deviation = 20.8 
 Number of Observations = 24 
 Blind Sample ID = 67DIW-33132  Mean = 0.40 
 % Relative Standard Deviation = 26.1 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 0.21 
 % Relative Standard Deviation = 14.7 
 Number of Observations = 20 
 Blind Sample ID = 67DIW-33120  Mean = 0.50 
 % Relative Standard Deviation = 9.4 
 Number of Observations = 10 
 Blind Sample ID = 50M6/50DW  Mean = 0.15 
 % Relative Standard Deviation = 36.5 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5098  Mean = 0.77 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5096  Mean = 0.28 
 % Relative Standard Deviation = 18.2 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5082  Mean = 0.96 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 5 
 Blind Sample ID = 50DW/5004  Mean = 0.48 
 % Relative Standard Deviation = 7.7 
 Number of Observations = 19 
 Blind Sample ID = 50DW-50124  Mean = 0.11 
 % Relative Standard Deviation = 30.0 
 Number of Observations = 9 
 Blind Sample ID = 50DW-50122  Mean = 0.38 
 % Relative Standard Deviation = 8.5 
 Number of Observations = 51 
 Blind Sample ID = 50DIW-50138  Mean = 0.56 
 % Relative Standard Deviation = 11.5 
 Number of Observations = 52 
 Blind Sample ID = 50DIW-50136  Mean = 0.66 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 30 
 Blind Sample ID = 50DIW-50130  Mean = 0.60 
 % Relative Standard Deviation = 15.2 
 Number of Observations = 37 
 Blind Sample ID = 50DIW-50128  Mean = 0.17 
 % Relative Standard Deviation = 28.5 
 Number of Observations = 7 
 Blind Sample ID = 5098/50DW  Mean = 1.08 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 6 
 Blind Sample ID = 5098/5004  Mean = 1.58 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 4 
 Blind Sample ID = 5094/50M6  Mean = 1.39 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 14 
 Blind Sample ID = 5094/50M4  Mean = 1.41 
 % Relative Standard Deviation = 7.6 
 Number of Observations = 7 
 Blind Sample ID = 5094/5082  Mean = 1.01 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 40 
 Blind Sample ID = 50152-50DIW  Mean = 0.34 
 % Relative Standard Deviation = 9.8 
 Number of Observations = 34 
 Blind Sample ID = 50142-50144  Mean = 0.38 
 % Relative Standard Deviation = 7.2 
 Number of Observations = 18 
 Blind Sample ID = 50140-50144  Mean = 0.66 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 48 
 Blind Sample ID = 50138-50140  Mean = 0.93 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 30 
 Blind Sample ID = 50136-50138  Mean = 0.57 
 % Relative Standard Deviation = 7.7 
 Number of Observations = 18 
 Blind Sample ID = 50134-50140  Mean = 0.84 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 68 
 Blind Sample ID = 50134-50136  Mean = 0.56 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 18 
 Blind Sample ID = 50132-50134  Mean = 1.17 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 30 
 Blind Sample ID = 50130-50136  Mean = 0.88 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 24 
 Blind Sample ID = 50130-50132  Mean = 0.89 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 12 
 Blind Sample ID = 50128-50134  Mean = 0.88 
 % Relative Standard Deviation = 8.3 
 Number of Observations = 18 
 Blind Sample ID = 50128-50132  Mean = 0.92 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 12 
 Blind Sample ID = 50126-50128  Mean = 0.76 
 % Relative Standard Deviation = 7.0 
 Number of Observations = 9 
 Blind Sample ID = 50126-50124  Mean = 0.98 
 % Relative Standard Deviation = 6.2 
 Number of Observations = 24 
 Blind Sample ID = 50120-50128  Mean = 0.78 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 10 
 Blind Sample ID = 50120-50124  Mean = 0.13 
 % Relative Standard Deviation = 38.0 
 Number of Observations = 7 
 Blind Sample ID = 5010/5008  Mean = 1.08 
 % Relative Standard Deviation = 13.8 
 Number of Observations = 8 
 Blind Sample ID = 5010/5004  Mean = 0.95 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 15 
 Blind Sample ID = 5004/50DW  Mean = 0.83 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 16 
 Blind Sample ID = 50004-50DIW  Mean = 0.54 
 % Relative Standard Deviation = 16.6 
 Number of Observations = 12 
 Blind Sample ID = 5000/5098  Mean = 1.00 
 % Relative Standard Deviation = 7.1 
 Number of Observations = 5 
 Blind Sample ID = 5000/5096  Mean = 0.32 
 % Relative Standard Deviation = 18.3 
 Number of Observations = 35 
 Blind Sample ID = 33M6/67DW  Mean = 0.12 
 % Relative Standard Deviation = 34.2 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6798  Mean = 0.12 
 % Relative Standard Deviation = 35.1 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6710  Mean = 1.29 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6704  Mean = 0.58 
 % Relative Standard Deviation = 7.1 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6700  Mean = 0.18 
 % Relative Standard Deviation = 24.8 
 Number of Observations = 21 
 Blind Sample ID = 33DW-67122  Mean = 0.38 
 % Relative Standard Deviation = 13.7 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67134  Mean = 0.32 
 % Relative Standard Deviation = 13.3 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67132  Mean = 0.87 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67130  Mean = 0.40 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 24 
 Blind Sample ID = 33DIW-67126  Mean = 0.17 
 % Relative Standard Deviation = 25.8 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67122  Mean = 0.44 
 % Relative Standard Deviation = 13.2 
 Number of Observations = 24 
 Blind Sample ID = 33DIW-67120  Mean = 0.12 
 % Relative Standard Deviation = 38.6 
 Number of Observations = 49 
 Blind Sample ID = 3398/67DW  Mean = 0.45 
 % Relative Standard Deviation = 13.4 
 Number of Observations = 22 
 Blind Sample ID = 3396/67DW  Mean = 0.75 
 % Relative Standard Deviation = 14.5 
 Number of Observations = 23 
 Blind Sample ID = 3394/67DW  Mean = 0.60 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 15 
 Blind Sample ID = 3304/67DW  Mean = 1.78 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 13 
 Blind Sample ID = 25M4/7594  Mean = 0.19 
 % Relative Standard Deviation = 25.7 
 Number of Observations = 21 
 Blind Sample ID = 25DW/7598  Mean = 1.08 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 11 
 Blind Sample ID = 25DW/7596  Mean = 1.72 
 % Relative Standard Deviation = 5.6 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7594  Mean = 0.43 
 % Relative Standard Deviation = 11.9 
 Number of Observations = 6 
 Blind Sample ID = 25DW/7582  Mean = 0.12 
 % Relative Standard Deviation = 33.4 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7508  Mean = 1.44 
 % Relative Standard Deviation = 13.3 
 Number of Observations = 35 
 Blind Sample ID = 25DW/7504  Mean = 0.63 
 % Relative Standard Deviation = 14.4 
 Number of Observations = 24 
 Blind Sample ID = 25DW/7500  Mean = 0.45 
 % Relative Standard Deviation = 11.6 
 Number of Observations = 12 
 Blind Sample ID = 25DW-75126  Mean = 0.18 
 % Relative Standard Deviation = 21.2 
 Number of Observations = 12 
 Blind Sample ID = 25DW-75122  Mean = 0.78 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 41 
 Blind Sample ID = 25DIW-75150  Mean = 0.16 
 % Relative Standard Deviation = 12.5 
 Number of Observations = 59 
 Blind Sample ID = 25DIW-75144  Mean = 0.36 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 24 
 Blind Sample ID = 25DIW-75142  Mean = 0.54 
 % Relative Standard Deviation = 20.6 
 Number of Observations = 30 
 Blind Sample ID = 25DIW-75138  Mean = 0.82 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 50 
 Blind Sample ID = 25DIW-75136  Mean = 0.47 
 % Relative Standard Deviation = 9.7 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75134  Mean = 0.36 
 % Relative Standard Deviation = 14.4 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75132  Mean = 0.94 
 % Relative Standard Deviation = 9.9 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75130  Mean = 0.93 
 % Relative Standard Deviation = 7.5 
 Number of Observations = 32 
 Blind Sample ID = 25DIW-75128  Mean = 0.44 
 % Relative Standard Deviation = 14.2 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75126  Mean = 0.19 
 % Relative Standard Deviation = 12.9 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75122  Mean = 0.49 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75120  Mean = 0.65 
 % Relative Standard Deviation = 12.5 
 Number of Observations = 11 
 Blind Sample ID = 2598/7500  Mean = 0.46 
 % Relative Standard Deviation = 29.3 
 Number of Observations = 9 
 Blind Sample ID = 2596/7598  Mean = 1.22 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 19 
 Blind Sample ID = 2594/75M6  Mean = 1.72 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 13 
 Blind Sample ID = 2594/7596  Mean = 1.18 
 % Relative Standard Deviation = 10.4 
 Number of Observations = 10 
 Blind Sample ID = 2594/7500  Mean = 2.30 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 3 
 Blind Sample ID = 2588/7586  Mean = 0.53 
 % Relative Standard Deviation = 10.8 
 Number of Observations = 3 
 Blind Sample ID = 2582/75M4  Mean = 1.25 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 40 
 Blind Sample ID = 25152-75150  Mean = 1.48 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 62 
 Blind Sample ID = 25150-75004  Mean = 0.44 
 % Relative Standard Deviation = 7.6 
 Number of Observations = 18 
 Blind Sample ID = 25146-75144  Mean = 0.62 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 34 
 Blind Sample ID = 25146-75142  Mean = 0.84 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 16 
 Blind Sample ID = 25146-75138  Mean = 0.87 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 26 
 Blind Sample ID = 25144-75146  Mean = 0.40 
 % Relative Standard Deviation = 16.2 
 Number of Observations = 28 
 Blind Sample ID = 25144-75142  Mean = 0.72 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 31 
 Blind Sample ID = 25140-75138  Mean = 0.59 
 % Relative Standard Deviation = 9.8 
 Number of Observations = 26 
 Blind Sample ID = 25138-75140  Mean = 0.97 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 28 
 Blind Sample ID = 25134-75136  Mean = 1.08 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 24 
 Blind Sample ID = 25132-75130  Mean = 1.23 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 6 
 Blind Sample ID = 25130-75128  Mean = 0.92 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 4 
 Blind Sample ID = 25122-75128  Mean = 0.36 
 % Relative Standard Deviation = 14.3 
 Number of Observations = 8 
 Blind Sample ID = 25120-75122  Mean = 1.80 
 % Relative Standard Deviation = 9.6 
 Number of Observations = 3 
 Blind Sample ID = 2510/7504  Mean = 0.22 
 % Relative Standard Deviation = 38.0 
 Number of Observations = 5 
 Blind Sample ID = 2506/7510  Mean = 0.53 
 % Relative Standard Deviation = 9.5 
 Number of Observations = 4 
 Blind Sample ID = 2504/7510  Mean = 1.85 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 39 
 Blind Sample ID = 25004-75152  Mean = 0.39 
 % Relative Standard Deviation = 14.9 
 Number of Observations = 21 
 Blind Sample ID = 2500/7598  Mean = 0.58 
 % Relative Standard Deviation = 63.9 
 Number of Observations = 19 
 Blind Sample ID =
The SGPlot Procedure



- Magnesium, FIL, AA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00925, MCode: AA022
Dates: 10/03/86 through 03/29/96
Open Data Set

 Mean = 21.25 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 4 
 Blind Sample ID = ST96  Mean = 92.20 
 % Relative Standard Deviation = 8.5 
 Number of Observations = 15 
 Blind Sample ID = ST00  Mean = 1.77 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 15 
 Blind Sample ID = 67DIW-33122  Mean = 5.88 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 20 
 Blind Sample ID = 67DIW-33120  Mean = 5.09 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 10 
 Blind Sample ID = 50M6/50DW  Mean = 4.37 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5098  Mean = 11.06 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 18 
 Blind Sample ID = 50DW/5096  Mean = 1.75 
 % Relative Standard Deviation = 9.9 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5082  Mean = 1.47 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 16 
 Blind Sample ID = 50DW/5012  Mean = 18.24 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 17 
 Blind Sample ID = 50DW/5008  Mean = 16.46 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 13 
 Blind Sample ID = 50DW/5004  Mean = 51.50 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5000  Mean = 29.61 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 18 
 Blind Sample ID = 50DW-50124  Mean = 2.67 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 9 
 Blind Sample ID = 50DW-50122  Mean = 7.09 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 11 
 Blind Sample ID = 50DW-50118  Mean = 1.50 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 36 
 Blind Sample ID = 50DW-50112  Mean = 17.00 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 3 
 Blind Sample ID = 50DW-50104  Mean = 8.99 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 28 
 Blind Sample ID = 50DIW-50128  Mean = 4.44 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 7 
 Blind Sample ID = 5098/50DW  Mean = 21.33 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 6 
 Blind Sample ID = 5098/5004  Mean = 10.71 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 14 
 Blind Sample ID = 5096/50DW  Mean = 28.25 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 4 
 Blind Sample ID = 5094/50M6  Mean = 25.29 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 14 
 Blind Sample ID = 5094/50M4  Mean = 24.50 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 6 
 Blind Sample ID = 5094/5082  Mean = 12.60 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 15 
 Blind Sample ID = 5014/5096  Mean = 3.24 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 13 
 Blind Sample ID = 5014/5012  Mean = 13.50 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 6 
 Blind Sample ID = 50128-50134  Mean = 13.00 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 7 
 Blind Sample ID = 50128-50132  Mean = 9.76 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 11 
 Blind Sample ID = 50126-50128  Mean = 30.13 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 8 
 Blind Sample ID = 50126-50124  Mean = 3.54 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 11 
 Blind Sample ID = 50126-50122  Mean = 17.92 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 24 
 Blind Sample ID = 50120-50128  Mean = 37.60 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 5 
 Blind Sample ID = 50120-50124  Mean = 9.92 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 12 
 Blind Sample ID = 50120-50112  Mean = 3.30 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 4 
 Blind Sample ID = 50114-50112  Mean = 17.55 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 11 
 Blind Sample ID = 50110-50118  Mean = 11.92 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 12 
 Blind Sample ID = 50110-50112  Mean = 28.38 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 13 
 Blind Sample ID = 5010/5008  Mean = 26.54 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 13 
 Blind Sample ID = 5010/5004  Mean = 16.04 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 27 
 Blind Sample ID = 5007/5003  Mean = 18.08 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 13 
 Blind Sample ID = 5006/5004  Mean = 16.58 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 24 
 Blind Sample ID = 5004/50DW  Mean = 41.83 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 12 
 Blind Sample ID = 5003/5001  Mean = 46.71 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 7 
 Blind Sample ID = 5002/5004  Mean = 53.75 
 % Relative Standard Deviation = 5.8 
 Number of Observations = 12 
 Blind Sample ID = 5000/5098  Mean = 60.32 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 19 
 Blind Sample ID = 5000/5096  Mean = 76.83 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 6 
 Blind Sample ID = 5000/5002  Mean = 2.28 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 6 
 Blind Sample ID = 33DW/6714  Mean = 2.01 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6712  Mean = 2.23 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 18 
 Blind Sample ID = 33DW-67106  Mean = 15.25 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 4 
 Blind Sample ID = 25DW/7596  Mean = 6.23 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 6 
 Blind Sample ID = 25DIW-75132  Mean = 13.13 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75128  Mean = 1.21 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75126  Mean = 3.98 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75122  Mean = 13.08 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75120  Mean = 77.00 
 % Relative Standard Deviation = 6.0 
 Number of Observations = 6 
 Blind Sample ID = 2598/7500  Mean = 88.88 
 % Relative Standard Deviation = 8.5 
 Number of Observations = 8 
 Blind Sample ID = 2594/7500  Mean = 14.80 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 5 
 Blind Sample ID = 25122-75128  Mean = 8.40 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 8 
 Blind Sample ID = 25120-75122  Mean = 60.88 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 16 
 Blind Sample ID = 2501/7505  Mean = 31.00 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 4 
 Blind Sample ID = 2500/7598
The SGPlot Procedure



- Magnesium, FIL, AA, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00925, MCode: AA023
Dates: 10/09/86 through 07/24/96
Open Data Set

 Mean = 0.04 
 % Relative Standard Deviation = 16.5 
 Number of Observations = 4 
 Blind Sample ID = P9  Mean = 0.03 
 % Relative Standard Deviation = 10.1 
 Number of Observations = 34 
 Blind Sample ID = P8  Mean = 0.03 
 % Relative Standard Deviation = 28.3 
 Number of Observations = 8 
 Blind Sample ID = P5  Mean = 0.54 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 3 
 Blind Sample ID = P3  Mean = 0.31 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 6 
 Blind Sample ID = P23  Mean = 0.05 
 % Relative Standard Deviation = 8.2 
 Number of Observations = 14 
 Blind Sample ID = P21  Mean = 0.02 
 % Relative Standard Deviation = 34.1 
 Number of Observations = 15 
 Blind Sample ID = P20  Mean = 0.04 
 % Relative Standard Deviation = 10.7 
 Number of Observations = 15 
 Blind Sample ID = P19  Mean = 0.17 
 % Relative Standard Deviation = 8.4 
 Number of Observations = 23 
 Blind Sample ID = P18  Mean = 0.04 
 % Relative Standard Deviation = 11.2 
 Number of Observations = 35 
 Blind Sample ID = P17  Mean = 0.10 
 % Relative Standard Deviation = 8.0 
 Number of Observations = 54 
 Blind Sample ID = P16  Mean = 0.07 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 32 
 Blind Sample ID = P15  Mean = 0.70 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 42 
 Blind Sample ID = P14  Mean = 0.02 
 % Relative Standard Deviation = 13.5 
 Number of Observations = 36 
 Blind Sample ID = P13  Mean = 0.06 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 28 
 Blind Sample ID = P12  Mean = 0.16 
 % Relative Standard Deviation = 7.9 
 Number of Observations = 47 
 Blind Sample ID = P11  Mean = 0.18 
 % Relative Standard Deviation = 160.0 
 Number of Observations = 14 
 Blind Sample ID =
The SGPlot Procedure



- Magnesium, FIL, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00925, MCode: PLA11
Dates: 10/01/86 through 09/27/01
Open Data Set

 Mean = 10.91 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 22 
 Blind Sample ID = STM6  Mean = 9.68 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 16 
 Blind Sample ID = ST98  Mean = 19.26 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 65 
 Blind Sample ID = ST97  Mean = 22.62 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 13 
 Blind Sample ID = ST96  Mean = 32.35 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 17 
 Blind Sample ID = ST95  Mean = 47.04 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 28 
 Blind Sample ID = ST94  Mean = 2.01 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 8 
 Blind Sample ID = ST93  Mean = 53.69 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 13 
 Blind Sample ID = ST85  Mean = 3.81 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 7 
 Blind Sample ID = ST83  Mean = 3.56 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 19 
 Blind Sample ID = ST82  Mean = 12.83 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 12 
 Blind Sample ID = ST81  Mean = 0.98 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 27 
 Blind Sample ID = P31  Mean = 0.02 
 % Relative Standard Deviation = 11.7 
 Number of Observations = 24 
 Blind Sample ID = P30  Mean = 0.06 
 % Relative Standard Deviation = 8.3 
 Number of Observations = 3 
 Blind Sample ID = P26  Mean = 0.06 
 % Relative Standard Deviation = 23.4 
 Number of Observations = 3 
 Blind Sample ID = P24  Mean = 2.78 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 28 
 Blind Sample ID = 75DIW-25155  Mean = 1.75 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25146  Mean = 2.51 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 14 
 Blind Sample ID = 75DIW-25139  Mean = 0.91 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25138  Mean = 2.53 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 14 
 Blind Sample ID = 75DIW-25137  Mean = 1.45 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25130  Mean = 1.76 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 16 
 Blind Sample ID = 67DW-33122  Mean = 5.69 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 64 
 Blind Sample ID = 67DW-33120  Mean = 4.71 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33118  Mean = 1.19 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 32 
 Blind Sample ID = 67DW-33114  Mean = 0.25 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 17 
 Blind Sample ID = 67DW-33113  Mean = 10.73 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33104  Mean = 2.78 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 24 
 Blind Sample ID = 67DIW-33132  Mean = 1.93 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 28.67 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 6 
 Blind Sample ID = 50DW-50124  Mean = 2.67 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 3 
 Blind Sample ID = 50DW-50122  Mean = 1.52 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 17 
 Blind Sample ID = 50DW-50112  Mean = 16.00 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 10 
 Blind Sample ID = 50DW-50104  Mean = 4.42 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 14 
 Blind Sample ID = 50DIW-50145  Mean = 1.85 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 22 
 Blind Sample ID = 50DIW-50138  Mean = 8.42 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 9 
 Blind Sample ID = 50DIW-50128  Mean = 58.96 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 25 
 Blind Sample ID = 5099/5093  Mean = 59.92 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 13 
 Blind Sample ID = 5099/5083  Mean = 66.06 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 31 
 Blind Sample ID = 5097/5099  Mean = 35.68 
 % Relative Standard Deviation = 9.6 
 Number of Observations = 25 
 Blind Sample ID = 5097/5001  Mean = 15.34 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 41 
 Blind Sample ID = 5093/5087  Mean = 0.54 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 12 
 Blind Sample ID = 50157-50DIW  Mean = 0.35 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 40 
 Blind Sample ID = 50152-50DIW  Mean = 12.66 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 18 
 Blind Sample ID = 50147-50151  Mean = 8.50 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 16 
 Blind Sample ID = 50145-50147  Mean = 13.87 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 22 
 Blind Sample ID = 50143-50151  Mean = 9.50 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 22 
 Blind Sample ID = 50143-50145  Mean = 17.26 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 18 
 Blind Sample ID = 50140-50144  Mean = 9.22 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 26 
 Blind Sample ID = 50139-50145  Mean = 7.75 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 16 
 Blind Sample ID = 50139-50141  Mean = 10.73 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 48 
 Blind Sample ID = 50138-50140  Mean = 10.31 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 18 
 Blind Sample ID = 50137-50143  Mean = 7.68 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 28 
 Blind Sample ID = 50137-50141  Mean = 10.05 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 16 
 Blind Sample ID = 50137-50139  Mean = 6.04 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 18 
 Blind Sample ID = 50135-50139  Mean = 5.94 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 34 
 Blind Sample ID = 50135-50137  Mean = 13.85 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 18 
 Blind Sample ID = 50134-50140  Mean = 8.81 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 13 
 Blind Sample ID = 50132-50134  Mean = 4.85 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 48 
 Blind Sample ID = 50131-50125  Mean = 7.01 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 24 
 Blind Sample ID = 50130-50132  Mean = 12.64 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 11 
 Blind Sample ID = 50128-50132  Mean = 29.25 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 4 
 Blind Sample ID = 50126-50124  Mean = 1.98 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 25 
 Blind Sample ID = 50125-50135  Mean = 1.49 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 24 
 Blind Sample ID = 50123-50121  Mean = 1.59 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 24 
 Blind Sample ID = 50121-50125  Mean = 33.18 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 44 
 Blind Sample ID = 50121-50105  Mean = 37.83 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 6 
 Blind Sample ID = 50120-50124  Mean = 28.53 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 47 
 Blind Sample ID = 50115-50103  Mean = 3.23 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 6 
 Blind Sample ID = 50114-50112  Mean = 3.92 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 49 
 Blind Sample ID = 5011/5007  Mean = 3.16 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 12 
 Blind Sample ID = 50106-50112  Mean = 37.38 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 48 
 Blind Sample ID = 50105-50117  Mean = 41.24 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 46 
 Blind Sample ID = 50103-50101  Mean = 16.08 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 25 
 Blind Sample ID = 5007/5003  Mean = 27.38 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 61 
 Blind Sample ID = 5007/5001  Mean = 23.32 
 % Relative Standard Deviation = 24.4 
 Number of Observations = 19 
 Blind Sample ID = 5003/5097  Mean = 41.17 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 36 
 Blind Sample ID = 5003/5001  Mean = 9.25 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 16 
 Blind Sample ID = 50004-50DIW  Mean = 3.53 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 34 
 Blind Sample ID = 33M6/67DW  Mean = 6.28 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6798  Mean = 13.26 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 27 
 Blind Sample ID = 33DW/6797  Mean = 1.40 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 45 
 Blind Sample ID = 33DW/6793  Mean = 2.38 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 16 
 Blind Sample ID = 33DW/6714  Mean = 2.07 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 3 
 Blind Sample ID = 33DW/6712  Mean = 3.96 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 5 
 Blind Sample ID = 33DW/6711  Mean = 13.67 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 21 
 Blind Sample ID = 33DW/6710  Mean = 24.14 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 22 
 Blind Sample ID = 33DW/6708  Mean = 1.44 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6707  Mean = 2.29 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6706  Mean = 22.75 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6704  Mean = 20.65 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 26 
 Blind Sample ID = 33DW/6703  Mean = 39.95 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 19 
 Blind Sample ID = 33DW/6702  Mean = 65.38 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 24 
 Blind Sample ID = 33DW/6700  Mean = 1.10 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67126  Mean = 1.19 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 16 
 Blind Sample ID = 33DW-67123  Mean = 3.51 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67122  Mean = 0.82 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 13 
 Blind Sample ID = 33DW-67121  Mean = 11.66 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 53 
 Blind Sample ID = 33DW-67120  Mean = 9.32 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 25 
 Blind Sample ID = 33DW-67118  Mean = 18.00 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 16 
 Blind Sample ID = 33DW-67115  Mean = 2.37 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67114  Mean = 13.52 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 27 
 Blind Sample ID = 33DW-67110  Mean = 2.24 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 10 
 Blind Sample ID = 33DW-67106  Mean = 21.38 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67104  Mean = 3.20 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 49 
 Blind Sample ID = 3398/67DW  Mean = 7.76 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 22 
 Blind Sample ID = 3396/67DW  Mean = 16.78 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 23 
 Blind Sample ID = 3394/67DW  Mean = 4.44 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 29 
 Blind Sample ID = 33127-67133  Mean = 1.84 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 31 
 Blind Sample ID = 33127-67123  Mean = 1.06 
 % Relative Standard Deviation = 12.6 
 Number of Observations = 13 
 Blind Sample ID = 3312/67DW  Mean = 12.27 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 15 
 Blind Sample ID = 3308/67DW  Mean = 1.18 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 36 
 Blind Sample ID = 3306/67DW  Mean = 11.27 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 15 
 Blind Sample ID = 3304/67DW  Mean = 32.72 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 32 
 Blind Sample ID = 3300/67DW  Mean = 35.71 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 7 
 Blind Sample ID = 25M4/7594  Mean = 7.10 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7598  Mean = 14.56 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7597  Mean = 16.48 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 21 
 Blind Sample ID = 25DW/7596  Mean = 24.37 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7595  Mean = 36.11 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 9 
 Blind Sample ID = 25DW/7594  Mean = 2.76 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 5 
 Blind Sample ID = 25DW/7582  Mean = 2.80 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7514  Mean = 2.31 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7512  Mean = 4.49 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7511  Mean = 27.40 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 20 
 Blind Sample ID = 25DW/7508  Mean = 1.66 
 % Relative Standard Deviation = 7.5 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7507  Mean = 25.64 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 45 
 Blind Sample ID = 25DW/7504  Mean = 23.11 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7503  Mean = 45.22 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7502  Mean = 74.48 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7500  Mean = 1.21 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75126  Mean = 43.29 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75124  Mean = 3.96 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75122  Mean = 0.91 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 23 
 Blind Sample ID = 25DW-75121  Mean = 10.29 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75118  Mean = 0.57 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 30 
 Blind Sample ID = 25DW-75113  Mean = 2.24 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 31 
 Blind Sample ID = 25DW-75112  Mean = 14.88 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75110  Mean = 2.57 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75106  Mean = 48.69 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75105  Mean = 24.25 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75104  Mean = 12.99 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 33 
 Blind Sample ID = 25DIW-75151  Mean = 18.44 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 26 
 Blind Sample ID = 25DIW-75142  Mean = 11.17 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 52 
 Blind Sample ID = 25DIW-75136  Mean = 1.51 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 17 
 Blind Sample ID = 25DIW-75135  Mean = 7.16 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75134  Mean = 5.98 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 6 
 Blind Sample ID = 25DIW-75132  Mean = 5.81 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 18 
 Blind Sample ID = 25DIW-75131  Mean = 4.28 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75130  Mean = 12.63 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75128  Mean = 1.49 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 56 
 Blind Sample ID = 25DIW-75127  Mean = 68.00 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 16 
 Blind Sample ID = 2599/7501  Mean = 47.56 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 9 
 Blind Sample ID = 2598/7502  Mean = 76.25 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 4 
 Blind Sample ID = 2598/7500  Mean = 12.86 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 7 
 Blind Sample ID = 2596/7598  Mean = 8.38 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 9 
 Blind Sample ID = 2596/7514  Mean = 20.29 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 14 
 Blind Sample ID = 2594/75M6  Mean = 29.22 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 9 
 Blind Sample ID = 2594/7596  Mean = 9.71 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 27 
 Blind Sample ID = 25159-75155  Mean = 4.58 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 12 
 Blind Sample ID = 25157-75159  Mean = 3.39 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 27 
 Blind Sample ID = 25155-75157  Mean = 9.23 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 12 
 Blind Sample ID = 25155-75153  Mean = 15.87 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 28 
 Blind Sample ID = 25155-75151  Mean = 8.76 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 12 
 Blind Sample ID = 25155-75147  Mean = 1.23 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 40 
 Blind Sample ID = 25152-75150  Mean = 10.53 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 26 
 Blind Sample ID = 25151-75147  Mean = 14.35 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 22 
 Blind Sample ID = 25150-75004  Mean = 8.52 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 26 
 Blind Sample ID = 25147-75145  Mean = 14.07 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 18 
 Blind Sample ID = 25146-75144  Mean = 4.53 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 16 
 Blind Sample ID = 25146-75138  Mean = 22.63 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 28 
 Blind Sample ID = 25144-75142  Mean = 8.68 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 34 
 Blind Sample ID = 25141-75139  Mean = 7.23 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 32 
 Blind Sample ID = 25140-75138  Mean = 17.15 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 20 
 Blind Sample ID = 2514/7596  Mean = 10.06 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 24 
 Blind Sample ID = 25139-75137  Mean = 13.72 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 22 
 Blind Sample ID = 25134-75136  Mean = 2.89 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 16 
 Blind Sample ID = 25133-75127  Mean = 6.28 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 11 
 Blind Sample ID = 25132-75130  Mean = 14.33 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 3 
 Blind Sample ID = 25130-75128  Mean = 1.93 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 42 
 Blind Sample ID = 25127-75125  Mean = 1.96 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 105 
 Blind Sample ID = 25125-75127  Mean = 1.07 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 62 
 Blind Sample ID = 25125-75113  Mean = 1.91 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 24 
 Blind Sample ID = 25123-75127  Mean = 17.17 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 12 
 Blind Sample ID = 2512/7596  Mean = 3.09 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 56 
 Blind Sample ID = 25117-75113  Mean = 13.78 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 55 
 Blind Sample ID = 25101-75113  Mean = 30.00 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 13 
 Blind Sample ID = 2510/7504  Mean = 40.53 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 15 
 Blind Sample ID = 2509/7501  Mean = 34.14 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 7 
 Blind Sample ID = 2508/7504  Mean = 16.10 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 10 
 Blind Sample ID = 2506/7510  Mean = 27.17 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 6 
 Blind Sample ID = 2506/7508  Mean = 54.91 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 23 
 Blind Sample ID = 2505/7501  Mean = 23.29 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 7 
 Blind Sample ID = 2504/7510  Mean = 52.50 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 10 
 Blind Sample ID = 2504/7502  Mean = 39.94 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 17 
 Blind Sample ID = 2502/7504  Mean = 95.61 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 18 
 Blind Sample ID = 2501/7599  Mean = 19.57 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 44 
 Blind Sample ID = 2501/7509  Mean = 60.92 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 13 
 Blind Sample ID = 2501/7505  Mean = 32.64 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 11 
 Blind Sample ID = 2500/7598  Mean = 27.56 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 9 
 Blind Sample ID = 2500/7514  Mean = 27.00 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 13 
 Blind Sample ID = 2500/7512  Mean = 7.53 
 % Relative Standard Deviation = 43.3 
 Number of Observations = 28 
 Blind Sample ID =
The SGPlot Procedure



- Magnesium, FIL, ICP-OES, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00925, MCode: PLA09
Dates: 10/08/92 through 01/31/97
Open Data Set

 Mean = 0.31 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 4 
 Blind Sample ID = P23  Mean = 0.04 
 % Relative Standard Deviation = 35.3 
 Number of Observations = 4 
 Blind Sample ID = P21  Mean = 2.36 
 % Relative Standard Deviation = 6.8 
 Number of Observations = 8 
 Blind Sample ID = 75DW-25117  Mean = 0.51 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 11 
 Blind Sample ID = 75DIW-25125  Mean = 0.24 
 % Relative Standard Deviation = 10.5 
 Number of Observations = 8 
 Blind Sample ID = 67DW-33113  Mean = 4.91 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 8 
 Blind Sample ID = 50DW-50117  Mean = 0.83 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 8 
 Blind Sample ID = 33DW-67121  Mean = 0.94 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75121
The SGPlot Procedure



- Magnesium, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00927, MCode: PLA15
Dates: 10/14/99 through 09/14/01
Open Data Set

 Mean = 2.77 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 4 
 Blind Sample ID = 75DIW-25155  Mean = 0.52 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 4 
 Blind Sample ID = 50157-50DIW  Mean = 5.15 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 4 
 Blind Sample ID = 50155-50DIW  Mean = 6.10 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 4 
 Blind Sample ID = 25DIW-75147  Mean = 4.34 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 4 
 Blind Sample ID = 25157-75159  Mean = 8.84 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 3 
 Blind Sample ID = 25155-75147
The SGPlot Procedure



- Potassium, FIL, AA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00935, MCode: AA030
Dates: 10/01/86 through 09/27/01
Open Data Set

 Mean = 0.84 
 % Relative Standard Deviation = 7.9 
 Number of Observations = 22 
 Blind Sample ID = STM6  Mean = 0.56 
 % Relative Standard Deviation = 11.6 
 Number of Observations = 14 
 Blind Sample ID = ST98  Mean = 3.35 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 15 
 Blind Sample ID = ST96  Mean = 5.87 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 27 
 Blind Sample ID = ST94  Mean = 1.86 
 % Relative Standard Deviation = 6.8 
 Number of Observations = 20 
 Blind Sample ID = ST82  Mean = 4.02 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 18 
 Blind Sample ID = ST00  Mean = 0.86 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 27 
 Blind Sample ID = P31  Mean = 0.16 
 % Relative Standard Deviation = 26.8 
 Number of Observations = 22 
 Blind Sample ID = P30  Mean = 0.69 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25146  Mean = 0.89 
 % Relative Standard Deviation = 7.7 
 Number of Observations = 29 
 Blind Sample ID = 75DIW-25144  Mean = 0.43 
 % Relative Standard Deviation = 11.1 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25138  Mean = 0.75 
 % Relative Standard Deviation = 9.9 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25130  Mean = 0.36 
 % Relative Standard Deviation = 13.8 
 Number of Observations = 16 
 Blind Sample ID = 67DW-33122  Mean = 1.25 
 % Relative Standard Deviation = 7.0 
 Number of Observations = 63 
 Blind Sample ID = 67DW-33120  Mean = 1.69 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33118  Mean = 0.67 
 % Relative Standard Deviation = 8.4 
 Number of Observations = 32 
 Blind Sample ID = 67DW-33114  Mean = 1.34 
 % Relative Standard Deviation = 13.2 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33104  Mean = 0.61 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 23 
 Blind Sample ID = 67DIW-33132  Mean = 0.97 
 % Relative Standard Deviation = 10.2 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 0.40 
 % Relative Standard Deviation = 9.4 
 Number of Observations = 15 
 Blind Sample ID = 67DIW-33122  Mean = 1.30 
 % Relative Standard Deviation = 8.5 
 Number of Observations = 19 
 Blind Sample ID = 67DIW-33120  Mean = 0.34 
 % Relative Standard Deviation = 41.3 
 Number of Observations = 9 
 Blind Sample ID = 50M6/50DW  Mean = 1.74 
 % Relative Standard Deviation = 7.8 
 Number of Observations = 20 
 Blind Sample ID = 50DW/5096  Mean = 0.93 
 % Relative Standard Deviation = 10.4 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5082  Mean = 1.58 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 16 
 Blind Sample ID = 50DW/5012  Mean = 4.78 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 19 
 Blind Sample ID = 50DW/5008  Mean = 1.88 
 % Relative Standard Deviation = 9.9 
 Number of Observations = 13 
 Blind Sample ID = 50DW/5004  Mean = 2.13 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5000  Mean = 6.75 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 24 
 Blind Sample ID = 50DW-50124  Mean = 0.57 
 % Relative Standard Deviation = 7.9 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50122  Mean = 2.43 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50118  Mean = 1.59 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 52 
 Blind Sample ID = 50DW-50112  Mean = 2.00 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 13 
 Blind Sample ID = 50DW-50104  Mean = 0.89 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 51 
 Blind Sample ID = 50DIW-50138  Mean = 3.24 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 50 
 Blind Sample ID = 50DIW-50136  Mean = 1.49 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 28 
 Blind Sample ID = 50DIW-50130  Mean = 4.67 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 36 
 Blind Sample ID = 50DIW-50128  Mean = 0.32 
 % Relative Standard Deviation = 29.5 
 Number of Observations = 4 
 Blind Sample ID = 5098/50DW  Mean = 2.24 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 5 
 Blind Sample ID = 5098/5004  Mean = 1.69 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 14 
 Blind Sample ID = 5096/50DW  Mean = 3.49 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 14 
 Blind Sample ID = 5094/50M4  Mean = 3.82 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 6 
 Blind Sample ID = 5094/5082  Mean = 0.44 
 % Relative Standard Deviation = 9.7 
 Number of Observations = 39 
 Blind Sample ID = 50152-50DIW  Mean = 4.57 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 34 
 Blind Sample ID = 50142-50144  Mean = 3.06 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 17 
 Blind Sample ID = 50140-50144  Mean = 2.72 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 16 
 Blind Sample ID = 5014/5096  Mean = 2.63 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 13 
 Blind Sample ID = 5014/5012  Mean = 2.19 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 48 
 Blind Sample ID = 50138-50140  Mean = 4.16 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 29 
 Blind Sample ID = 50136-50138  Mean = 2.49 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 18 
 Blind Sample ID = 50134-50140  Mean = 4.46 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 68 
 Blind Sample ID = 50134-50136  Mean = 2.13 
 % Relative Standard Deviation = 7.3 
 Number of Observations = 18 
 Blind Sample ID = 50132-50134  Mean = 4.77 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 30 
 Blind Sample ID = 50130-50136  Mean = 2.47 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 24 
 Blind Sample ID = 50130-50132  Mean = 5.90 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 11 
 Blind Sample ID = 50128-50134  Mean = 5.60 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 18 
 Blind Sample ID = 50128-50132  Mean = 6.07 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 11 
 Blind Sample ID = 50126-50128  Mean = 8.00 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 12 
 Blind Sample ID = 50126-50124  Mean = 1.90 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 12 
 Blind Sample ID = 50126-50122  Mean = 6.70 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 23 
 Blind Sample ID = 50120-50128  Mean = 8.88 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 12 
 Blind Sample ID = 50120-50124  Mean = 3.63 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 12 
 Blind Sample ID = 50120-50112  Mean = 2.71 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 10 
 Blind Sample ID = 50114-50112  Mean = 4.53 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 12 
 Blind Sample ID = 50110-50118  Mean = 3.61 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 12 
 Blind Sample ID = 50110-50112  Mean = 1.87 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 14 
 Blind Sample ID = 50106-50112  Mean = 2.27 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 6 
 Blind Sample ID = 50106-50104  Mean = 6.73 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 13 
 Blind Sample ID = 5010/5008  Mean = 3.96 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 13 
 Blind Sample ID = 5010/5004  Mean = 2.25 
 % Relative Standard Deviation = 7.2 
 Number of Observations = 12 
 Blind Sample ID = 5006/5004  Mean = 1.95 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 23 
 Blind Sample ID = 5004/50DW  Mean = 5.26 
 % Relative Standard Deviation = 6.8 
 Number of Observations = 7 
 Blind Sample ID = 5002/5004  Mean = 0.86 
 % Relative Standard Deviation = 7.3 
 Number of Observations = 16 
 Blind Sample ID = 50004-50DIW  Mean = 2.30 
 % Relative Standard Deviation = 9.4 
 Number of Observations = 10 
 Blind Sample ID = 5000/5098  Mean = 3.78 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 19 
 Blind Sample ID = 5000/5096  Mean = 5.42 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 6 
 Blind Sample ID = 5000/5002  Mean = 0.29 
 % Relative Standard Deviation = 33.1 
 Number of Observations = 34 
 Blind Sample ID = 33M6/67DW  Mean = 0.32 
 % Relative Standard Deviation = 12.7 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6798  Mean = 1.30 
 % Relative Standard Deviation = 7.5 
 Number of Observations = 21 
 Blind Sample ID = 33DW/6714  Mean = 2.18 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 13 
 Blind Sample ID = 33DW/6712  Mean = 2.73 
 % Relative Standard Deviation = 7.9 
 Number of Observations = 21 
 Blind Sample ID = 33DW/6710  Mean = 6.31 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 23 
 Blind Sample ID = 33DW/6708  Mean = 0.43 
 % Relative Standard Deviation = 17.7 
 Number of Observations = 12 
 Blind Sample ID = 33DW/6706  Mean = 2.61 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6704  Mean = 4.55 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 19 
 Blind Sample ID = 33DW/6702  Mean = 2.88 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 24 
 Blind Sample ID = 33DW/6700  Mean = 1.71 
 % Relative Standard Deviation = 12.5 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67126  Mean = 0.75 
 % Relative Standard Deviation = 9.2 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67122  Mean = 2.59 
 % Relative Standard Deviation = 5.6 
 Number of Observations = 52 
 Blind Sample ID = 33DW-67120  Mean = 3.42 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67118  Mean = 1.33 
 % Relative Standard Deviation = 6.0 
 Number of Observations = 24 
 Blind Sample ID = 33DW-67114  Mean = 2.61 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67110  Mean = 0.41 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67106  Mean = 2.61 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67104  Mean = 1.55 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67134  Mean = 1.26 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67132  Mean = 2.00 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67130  Mean = 1.73 
 % Relative Standard Deviation = 6.0 
 Number of Observations = 24 
 Blind Sample ID = 33DIW-67126  Mean = 0.75 
 % Relative Standard Deviation = 9.8 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67122  Mean = 2.54 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67120  Mean = 0.19 
 % Relative Standard Deviation = 19.4 
 Number of Observations = 49 
 Blind Sample ID = 3398/67DW  Mean = 1.08 
 % Relative Standard Deviation = 8.4 
 Number of Observations = 22 
 Blind Sample ID = 3396/67DW  Mean = 1.90 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 21 
 Blind Sample ID = 3394/67DW  Mean = 1.09 
 % Relative Standard Deviation = 7.9 
 Number of Observations = 13 
 Blind Sample ID = 3312/67DW  Mean = 3.21 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 12 
 Blind Sample ID = 3308/67DW  Mean = 0.22 
 % Relative Standard Deviation = 26.8 
 Number of Observations = 35 
 Blind Sample ID = 3306/67DW  Mean = 1.29 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 15 
 Blind Sample ID = 3304/67DW  Mean = 1.42 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 32 
 Blind Sample ID = 3300/67DW  Mean = 4.70 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 7 
 Blind Sample ID = 25M4/7594  Mean = 0.47 
 % Relative Standard Deviation = 20.7 
 Number of Observations = 21 
 Blind Sample ID = 25DW/7598  Mean = 2.58 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 24 
 Blind Sample ID = 25DW/7596  Mean = 4.43 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7594  Mean = 1.40 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 6 
 Blind Sample ID = 25DW/7582  Mean = 1.51 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7514  Mean = 2.36 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7512  Mean = 2.83 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7510  Mean = 7.11 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7508  Mean = 2.91 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 44 
 Blind Sample ID = 25DW/7504  Mean = 5.14 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7502  Mean = 3.25 
 % Relative Standard Deviation = 7.6 
 Number of Observations = 24 
 Blind Sample ID = 25DW/7500  Mean = 1.96 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75126  Mean = 10.00 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75124  Mean = 0.82 
 % Relative Standard Deviation = 16.2 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75122  Mean = 3.77 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75118  Mean = 2.39 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 32 
 Blind Sample ID = 25DW-75112  Mean = 2.92 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75110  Mean = 0.47 
 % Relative Standard Deviation = 10.5 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75106  Mean = 2.96 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75104  Mean = 0.84 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 40 
 Blind Sample ID = 25DIW-75150  Mean = 2.63 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 58 
 Blind Sample ID = 25DIW-75144  Mean = 4.26 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 25 
 Blind Sample ID = 25DIW-75142  Mean = 1.36 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 30 
 Blind Sample ID = 25DIW-75138  Mean = 4.89 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 51 
 Blind Sample ID = 25DIW-75136  Mean = 1.75 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75134  Mean = 1.42 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75132  Mean = 2.21 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75130  Mean = 7.01 
 % Relative Standard Deviation = 5.8 
 Number of Observations = 32 
 Blind Sample ID = 25DIW-75128  Mean = 1.92 
 % Relative Standard Deviation = 8.2 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75126  Mean = 0.84 
 % Relative Standard Deviation = 6.0 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75122  Mean = 2.91 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75120  Mean = 5.22 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 9 
 Blind Sample ID = 2598/7502  Mean = 3.19 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 10 
 Blind Sample ID = 2598/7500  Mean = 1.28 
 % Relative Standard Deviation = 22.8 
 Number of Observations = 6 
 Blind Sample ID = 2596/7598  Mean = 2.34 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 9 
 Blind Sample ID = 2596/7514  Mean = 2.04 
 % Relative Standard Deviation = 7.1 
 Number of Observations = 16 
 Blind Sample ID = 2594/75M6  Mean = 4.31 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 10 
 Blind Sample ID = 2594/7596  Mean = 4.46 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 8 
 Blind Sample ID = 2594/7500  Mean = 4.67 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 3 
 Blind Sample ID = 2588/7586  Mean = 1.09 
 % Relative Standard Deviation = 8.8 
 Number of Observations = 40 
 Blind Sample ID = 25152-75150  Mean = 1.62 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 62 
 Blind Sample ID = 25150-75004  Mean = 3.34 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 18 
 Blind Sample ID = 25146-75144  Mean = 4.90 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 34 
 Blind Sample ID = 25146-75142  Mean = 2.08 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 15 
 Blind Sample ID = 25146-75138  Mean = 3.09 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 25 
 Blind Sample ID = 25144-75146  Mean = 5.15 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 28 
 Blind Sample ID = 25144-75142  Mean = 1.99 
 % Relative Standard Deviation = 5.6 
 Number of Observations = 32 
 Blind Sample ID = 25140-75138  Mean = 3.03 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 20 
 Blind Sample ID = 2514/7596  Mean = 2.36 
 % Relative Standard Deviation = 5.8 
 Number of Observations = 26 
 Blind Sample ID = 25138-75140  Mean = 5.58 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 28 
 Blind Sample ID = 25134-75136  Mean = 2.73 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 24 
 Blind Sample ID = 25132-75130  Mean = 7.65 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 6 
 Blind Sample ID = 25130-75128  Mean = 7.54 
 % Relative Standard Deviation = 6.0 
 Number of Observations = 5 
 Blind Sample ID = 25122-75128  Mean = 1.85 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 8 
 Blind Sample ID = 25120-75122  Mean = 3.32 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 12 
 Blind Sample ID = 2512/7596  Mean = 3.86 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 11 
 Blind Sample ID = 2510/7504  Mean = 5.38 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 6 
 Blind Sample ID = 2508/7504  Mean = 3.08 
 % Relative Standard Deviation = 7.6 
 Number of Observations = 10 
 Blind Sample ID = 2506/7510  Mean = 6.87 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 6 
 Blind Sample ID = 2506/7508  Mean = 4.07 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 7 
 Blind Sample ID = 2504/7510  Mean = 6.11 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 11 
 Blind Sample ID = 2504/7502  Mean = 4.63 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 16 
 Blind Sample ID = 2502/7504  Mean = 1.08 
 % Relative Standard Deviation = 7.2 
 Number of Observations = 39 
 Blind Sample ID = 25004-75152  Mean = 1.45 
 % Relative Standard Deviation = 12.6 
 Number of Observations = 16 
 Blind Sample ID = 2500/7598  Mean = 2.60 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 9 
 Blind Sample ID = 2500/7514  Mean = 3.52 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 13 
 Blind Sample ID = 2500/7512  Mean = 0.68 
 % Relative Standard Deviation = 38.5 
 Number of Observations = 23 
 Blind Sample ID =
The SGPlot Procedure



- Potassium, FIL, AA, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00935, MCode: AA031
Dates: 10/09/86 through 09/28/01
Open Data Set

 Mean = 0.06 
 % Relative Standard Deviation = 18.2 
 Number of Observations = 4 
 Blind Sample ID = P9  Mean = 0.04 
 % Relative Standard Deviation = 28.8 
 Number of Observations = 34 
 Blind Sample ID = P8  Mean = 0.03 
 % Relative Standard Deviation = 31.8 
 Number of Observations = 8 
 Blind Sample ID = P5  Mean = 0.11 
 % Relative Standard Deviation = 7.6 
 Number of Observations = 7 
 Blind Sample ID = P33  Mean = 0.42 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 7 
 Blind Sample ID = P32  Mean = 0.92 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 9 
 Blind Sample ID = P31  Mean = 0.26 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 3 
 Blind Sample ID = P3  Mean = 0.38 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 3 
 Blind Sample ID = P29  Mean = 0.15 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 4 
 Blind Sample ID = P26  Mean = 0.56 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 4 
 Blind Sample ID = P25  Mean = 0.12 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 11 
 Blind Sample ID = P24  Mean = 0.50 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 15 
 Blind Sample ID = P23  Mean = 0.09 
 % Relative Standard Deviation = 20.4 
 Number of Observations = 23 
 Blind Sample ID = P21  Mean = 0.09 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 8 
 Blind Sample ID = P20  Mean = 0.17 
 % Relative Standard Deviation = 19.0 
 Number of Observations = 15 
 Blind Sample ID = P19  Mean = 0.07 
 % Relative Standard Deviation = 23.6 
 Number of Observations = 23 
 Blind Sample ID = P18  Mean = 0.05 
 % Relative Standard Deviation = 18.4 
 Number of Observations = 35 
 Blind Sample ID = P17  Mean = 0.23 
 % Relative Standard Deviation = 8.2 
 Number of Observations = 54 
 Blind Sample ID = P16  Mean = 0.19 
 % Relative Standard Deviation = 8.4 
 Number of Observations = 32 
 Blind Sample ID = P15  Mean = 0.65 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 42 
 Blind Sample ID = P14  Mean = 0.03 
 % Relative Standard Deviation = 33.6 
 Number of Observations = 38 
 Blind Sample ID = P13  Mean = 0.05 
 % Relative Standard Deviation = 19.0 
 Number of Observations = 30 
 Blind Sample ID = P12  Mean = 0.18 
 % Relative Standard Deviation = 10.0 
 Number of Observations = 48 
 Blind Sample ID = P11  Mean = 1.16 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 3 
 Blind Sample ID = 50DIW-50145  Mean = 2.59 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 7 
 Blind Sample ID = 25147-75145  Mean = 0.18 
 % Relative Standard Deviation = 150.9 
 Number of Observations = 13 
 Blind Sample ID =
The SGPlot Procedure



- Silica, FIL, CFA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00955, MCode: CL064
Dates: 10/03/86 through 09/27/01
Open Data Set

 Mean = 14.50 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 4 
 Blind Sample ID = ST96  Mean = 10.19 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 16 
 Blind Sample ID = ST00  Mean = 2.20 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 21 
 Blind Sample ID = 75DIW-25138  Mean = 2.42 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 21 
 Blind Sample ID = 75DIW-25130  Mean = 3.54 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33122  Mean = 3.26 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 63 
 Blind Sample ID = 67DW-33120  Mean = 2.95 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33118  Mean = 3.58 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 32 
 Blind Sample ID = 67DW-33114  Mean = 2.50 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33104  Mean = 0.87 
 % Relative Standard Deviation = 12.0 
 Number of Observations = 24 
 Blind Sample ID = 67DIW-33132  Mean = 3.23 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 3.39 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 16 
 Blind Sample ID = 67DIW-33122  Mean = 3.21 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 20 
 Blind Sample ID = 67DIW-33120  Mean = 5.51 
 % Relative Standard Deviation = 9.4 
 Number of Observations = 9 
 Blind Sample ID = 50M6/50DW  Mean = 5.23 
 % Relative Standard Deviation = 8.3 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5098  Mean = 7.02 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 20 
 Blind Sample ID = 50DW/5096  Mean = 4.38 
 % Relative Standard Deviation = 18.7 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5082  Mean = 1.97 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 13 
 Blind Sample ID = 50DW/5012  Mean = 11.00 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 18 
 Blind Sample ID = 50DW/5008  Mean = 3.90 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5004  Mean = 5.35 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5000  Mean = 9.88 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 24 
 Blind Sample ID = 50DW-50124  Mean = 5.27 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50122  Mean = 4.38 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50118  Mean = 1.99 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 52 
 Blind Sample ID = 50DW-50112  Mean = 3.72 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 13 
 Blind Sample ID = 50DW-50104  Mean = 4.59 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 21 
 Blind Sample ID = 50DIW-50138  Mean = 6.47 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 25 
 Blind Sample ID = 50DIW-50136  Mean = 4.75 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 30 
 Blind Sample ID = 50DIW-50130  Mean = 5.36 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 37 
 Blind Sample ID = 50DIW-50128  Mean = 5.00 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 7 
 Blind Sample ID = 5098/50DW  Mean = 9.05 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 6 
 Blind Sample ID = 5098/5004  Mean = 6.85 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 14 
 Blind Sample ID = 5096/50DW  Mean = 14.50 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 4 
 Blind Sample ID = 5094/50M6  Mean = 12.86 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 14 
 Blind Sample ID = 5094/50M4  Mean = 13.29 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 7 
 Blind Sample ID = 5094/5082  Mean = 2.22 
 % Relative Standard Deviation = 7.6 
 Number of Observations = 39 
 Blind Sample ID = 50152-50DIW  Mean = 7.42 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 18 
 Blind Sample ID = 50140-50144  Mean = 12.00 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 16 
 Blind Sample ID = 5014/5096  Mean = 7.17 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 10 
 Blind Sample ID = 5014/5012  Mean = 8.15 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 46 
 Blind Sample ID = 50138-50140  Mean = 6.08 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 18 
 Blind Sample ID = 50134-50140  Mean = 9.13 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 34 
 Blind Sample ID = 50134-50136  Mean = 3.91 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 18 
 Blind Sample ID = 50132-50134  Mean = 11.23 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 29 
 Blind Sample ID = 50130-50136  Mean = 5.99 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 24 
 Blind Sample ID = 50130-50132  Mean = 7.93 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 12 
 Blind Sample ID = 50128-50134  Mean = 6.53 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 17 
 Blind Sample ID = 50128-50132  Mean = 7.33 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 12 
 Blind Sample ID = 50126-50128  Mean = 12.08 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 12 
 Blind Sample ID = 50126-50124  Mean = 7.37 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 12 
 Blind Sample ID = 50126-50122  Mean = 9.88 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 24 
 Blind Sample ID = 50120-50128  Mean = 14.92 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 12 
 Blind Sample ID = 50120-50124  Mean = 6.91 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 12 
 Blind Sample ID = 50120-50112  Mean = 7.31 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 10 
 Blind Sample ID = 50114-50112  Mean = 8.61 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 11 
 Blind Sample ID = 50110-50118  Mean = 6.28 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 12 
 Blind Sample ID = 50110-50112  Mean = 3.70 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 14 
 Blind Sample ID = 50106-50112  Mean = 5.50 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 6 
 Blind Sample ID = 50106-50104  Mean = 15.25 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 12 
 Blind Sample ID = 5010/5008  Mean = 8.15 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 15 
 Blind Sample ID = 5010/5004  Mean = 5.68 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 12 
 Blind Sample ID = 5006/5004  Mean = 3.84 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 23 
 Blind Sample ID = 5004/50DW  Mean = 7.46 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 7 
 Blind Sample ID = 5002/5004  Mean = 4.74 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 16 
 Blind Sample ID = 50004-50DIW  Mean = 10.14 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 12 
 Blind Sample ID = 5000/5098  Mean = 12.05 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 19 
 Blind Sample ID = 5000/5096  Mean = 8.65 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 6 
 Blind Sample ID = 5000/5002  Mean = 7.00 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 22 
 Blind Sample ID = 33DW/6714  Mean = 2.59 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 15 
 Blind Sample ID = 33DW/6712  Mean = 6.02 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 9 
 Blind Sample ID = 33DW/6710  Mean = 14.50 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 12 
 Blind Sample ID = 33DW/6708  Mean = 2.40 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 5 
 Blind Sample ID = 33DW/6706  Mean = 6.68 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 4 
 Blind Sample ID = 33DW/6700  Mean = 2.82 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67126  Mean = 7.08 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67122  Mean = 6.56 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 52 
 Blind Sample ID = 33DW-67120  Mean = 5.68 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 25 
 Blind Sample ID = 33DW-67118  Mean = 7.10 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 24 
 Blind Sample ID = 33DW-67114  Mean = 5.91 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 27 
 Blind Sample ID = 33DW-67110  Mean = 2.30 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67106  Mean = 4.93 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67104  Mean = 1.30 
 % Relative Standard Deviation = 8.3 
 Number of Observations = 13 
 Blind Sample ID = 3312/67DW  Mean = 7.23 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 4 
 Blind Sample ID = 3308/67DW  Mean = 1.21 
 % Relative Standard Deviation = 10.9 
 Number of Observations = 13 
 Blind Sample ID = 3306/67DW  Mean = 3.43 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 10 
 Blind Sample ID = 3300/67DW  Mean = 15.33 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 6 
 Blind Sample ID = 25M4/7594  Mean = 10.20 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 18 
 Blind Sample ID = 25DW/7596  Mean = 13.33 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 3 
 Blind Sample ID = 25DW/7594  Mean = 7.94 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 15 
 Blind Sample ID = 25DW/7514  Mean = 2.93 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7512  Mean = 6.58 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 4 
 Blind Sample ID = 25DW/7510  Mean = 16.20 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 5 
 Blind Sample ID = 25DW/7508  Mean = 5.87 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 7 
 Blind Sample ID = 25DW/7504  Mean = 3.19 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75126  Mean = 14.80 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75124  Mean = 7.86 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75122  Mean = 6.34 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75118  Mean = 3.00 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 31 
 Blind Sample ID = 25DW-75112  Mean = 6.55 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75110  Mean = 2.59 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75106  Mean = 5.52 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75104  Mean = 5.88 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 25 
 Blind Sample ID = 25DIW-75142  Mean = 9.62 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 49 
 Blind Sample ID = 25DIW-75136  Mean = 4.08 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75134  Mean = 1.91 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75132  Mean = 7.16 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75130  Mean = 7.92 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 32 
 Blind Sample ID = 25DIW-75128  Mean = 3.08 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75126  Mean = 7.53 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75122  Mean = 7.10 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75120  Mean = 9.94 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 7 
 Blind Sample ID = 2598/7500  Mean = 11.20 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 10 
 Blind Sample ID = 2596/7514  Mean = 13.14 
 % Relative Standard Deviation = 6.8 
 Number of Observations = 7 
 Blind Sample ID = 2594/75M6  Mean = 12.11 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 9 
 Blind Sample ID = 2594/7500  Mean = 10.63 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 40 
 Blind Sample ID = 25152-75150  Mean = 10.01 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 22 
 Blind Sample ID = 25150-75004  Mean = 8.19 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 18 
 Blind Sample ID = 25146-75144  Mean = 9.45 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 16 
 Blind Sample ID = 25146-75138  Mean = 7.78 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 27 
 Blind Sample ID = 25144-75142  Mean = 8.76 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 32 
 Blind Sample ID = 25140-75138  Mean = 12.85 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 20 
 Blind Sample ID = 2514/7596  Mean = 10.90 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 28 
 Blind Sample ID = 25134-75136  Mean = 9.37 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 22 
 Blind Sample ID = 25134-75128  Mean = 4.60 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 9 
 Blind Sample ID = 25132-75134  Mean = 7.73 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 36 
 Blind Sample ID = 25132-75130  Mean = 10.61 
 % Relative Standard Deviation = 7.5 
 Number of Observations = 15 
 Blind Sample ID = 25130-75128  Mean = 6.69 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 12 
 Blind Sample ID = 25128-75134  Mean = 5.64 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 11 
 Blind Sample ID = 25128-75126  Mean = 9.09 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 24 
 Blind Sample ID = 25126-75128  Mean = 15.92 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 24 
 Blind Sample ID = 25126-75124  Mean = 8.15 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 12 
 Blind Sample ID = 25124-75126  Mean = 10.45 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 17 
 Blind Sample ID = 25122-75128  Mean = 17.50 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 12 
 Blind Sample ID = 25122-75124  Mean = 5.44 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 22 
 Blind Sample ID = 25120-75126  Mean = 10.10 
 % Relative Standard Deviation = 6.0 
 Number of Observations = 30 
 Blind Sample ID = 25120-75122  Mean = 8.62 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 12 
 Blind Sample ID = 25120-75118  Mean = 9.09 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 11 
 Blind Sample ID = 25120-75110  Mean = 11.08 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 12 
 Blind Sample ID = 2512/7596  Mean = 5.23 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 12 
 Blind Sample ID = 25118-75112  Mean = 5.27 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 12 
 Blind Sample ID = 25114-75106  Mean = 8.08 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 11 
 Blind Sample ID = 25114-75104  Mean = 7.61 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 12 
 Blind Sample ID = 25112-75110  Mean = 3.49 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 12 
 Blind Sample ID = 25112-75106  Mean = 5.28 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 23 
 Blind Sample ID = 25110-75112  Mean = 3.84 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 24 
 Blind Sample ID = 25106-75112  Mean = 4.64 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 11 
 Blind Sample ID = 25104-75112  Mean = 7.64 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 5 
 Blind Sample ID = 2510/7504  Mean = 7.30 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 3 
 Blind Sample ID = 2506/7510  Mean = 17.67 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 3 
 Blind Sample ID = 2506/7508  Mean = 8.60 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 3 
 Blind Sample ID = 2504/7510  Mean = 10.13 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 8 
 Blind Sample ID = 2500/7598  Mean = 10.19 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 9 
 Blind Sample ID = 2500/7514  Mean = 5.59 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 13 
 Blind Sample ID = 2500/7512  Mean = 6.18 
 % Relative Standard Deviation = 71.5 
 Number of Observations = 4 
 Blind Sample ID =
The SGPlot Procedure



- Silica, FIL, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00955, MCode: PLA11
Dates: 10/01/86 through 09/27/01
Open Data Set

 Mean = 11.05 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 22 
 Blind Sample ID = STM6  Mean = 10.69 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 16 
 Blind Sample ID = ST98  Mean = 7.24 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 65 
 Blind Sample ID = ST97  Mean = 14.08 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 13 
 Blind Sample ID = ST96  Mean = 7.85 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 17 
 Blind Sample ID = ST95  Mean = 18.32 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 28 
 Blind Sample ID = ST94  Mean = 5.61 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 8 
 Blind Sample ID = ST93  Mean = 8.25 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 13 
 Blind Sample ID = ST85  Mean = 8.30 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 7 
 Blind Sample ID = ST83  Mean = 8.00 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 18 
 Blind Sample ID = ST82  Mean = 5.99 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 12 
 Blind Sample ID = ST81  Mean = 2.48 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 28 
 Blind Sample ID = 75DIW-25155  Mean = 1.78 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 29 
 Blind Sample ID = 75DIW-25144  Mean = 2.30 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 30 
 Blind Sample ID = 75DIW-25139  Mean = 1.67 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 14 
 Blind Sample ID = 75DIW-25137  Mean = 2.48 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 17 
 Blind Sample ID = 67DW-33113  Mean = 5.56 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 14 
 Blind Sample ID = 50DIW-50145  Mean = 4.30 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 30 
 Blind Sample ID = 50DIW-50138  Mean = 6.30 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 26 
 Blind Sample ID = 50DIW-50136  Mean = 2.12 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 16 
 Blind Sample ID = 50DIW-50135  Mean = 8.22 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 25 
 Blind Sample ID = 5099/5093  Mean = 9.74 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 13 
 Blind Sample ID = 5099/5083  Mean = 9.05 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 31 
 Blind Sample ID = 5097/5099  Mean = 6.78 
 % Relative Standard Deviation = 32.1 
 Number of Observations = 25 
 Blind Sample ID = 5097/5001  Mean = 9.51 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 41 
 Blind Sample ID = 5093/5087  Mean = 7.22 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 12 
 Blind Sample ID = 50157-50DIW  Mean = 12.73 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 18 
 Blind Sample ID = 50147-50151  Mean = 17.03 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 16 
 Blind Sample ID = 50145-50147  Mean = 12.20 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 22 
 Blind Sample ID = 50143-50151  Mean = 16.88 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 22 
 Blind Sample ID = 50143-50145  Mean = 7.39 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 34 
 Blind Sample ID = 50142-50144  Mean = 10.15 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 26 
 Blind Sample ID = 50139-50145  Mean = 9.13 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 34 
 Blind Sample ID = 50139-50141  Mean = 14.81 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 18 
 Blind Sample ID = 50137-50143  Mean = 7.75 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 28 
 Blind Sample ID = 50137-50141  Mean = 8.13 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 16 
 Blind Sample ID = 50137-50139  Mean = 10.67 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 29 
 Blind Sample ID = 50136-50138  Mean = 6.83 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 34 
 Blind Sample ID = 50135-50139  Mean = 5.52 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 49 
 Blind Sample ID = 50135-50137  Mean = 8.83 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 34 
 Blind Sample ID = 50134-50136  Mean = 5.44 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 48 
 Blind Sample ID = 50131-50125  Mean = 4.72 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 25 
 Blind Sample ID = 50125-50135  Mean = 5.27 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 24 
 Blind Sample ID = 50123-50121  Mean = 4.74 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 24 
 Blind Sample ID = 50121-50125  Mean = 14.95 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 44 
 Blind Sample ID = 50121-50105  Mean = 8.44 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 47 
 Blind Sample ID = 50115-50103  Mean = 8.83 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 49 
 Blind Sample ID = 5011/5007  Mean = 18.48 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 48 
 Blind Sample ID = 50105-50117  Mean = 7.19 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 46 
 Blind Sample ID = 50103-50101  Mean = 7.78 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 25 
 Blind Sample ID = 5007/5003  Mean = 7.48 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 61 
 Blind Sample ID = 5007/5001  Mean = 7.02 
 % Relative Standard Deviation = 24.2 
 Number of Observations = 19 
 Blind Sample ID = 5003/5097  Mean = 7.32 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 36 
 Blind Sample ID = 5003/5001  Mean = 3.70 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 33 
 Blind Sample ID = 33M6/67DW  Mean = 6.99 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6798  Mean = 4.87 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 27 
 Blind Sample ID = 33DW/6797  Mean = 3.78 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 45 
 Blind Sample ID = 33DW/6793  Mean = 6.56 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 5 
 Blind Sample ID = 33DW/6711  Mean = 5.96 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 12 
 Blind Sample ID = 33DW/6710  Mean = 14.64 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6708  Mean = 5.35 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6707  Mean = 2.36 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6706  Mean = 5.09 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6704  Mean = 5.08 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 26 
 Blind Sample ID = 33DW/6703  Mean = 4.78 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 19 
 Blind Sample ID = 33DW/6702  Mean = 6.81 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6700  Mean = 3.99 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 16 
 Blind Sample ID = 33DW-67123  Mean = 3.07 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 13 
 Blind Sample ID = 33DW-67121  Mean = 6.50 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 16 
 Blind Sample ID = 33DW-67115  Mean = 3.49 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 49 
 Blind Sample ID = 3398/67DW  Mean = 4.68 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 22 
 Blind Sample ID = 3396/67DW  Mean = 6.39 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 23 
 Blind Sample ID = 3394/67DW  Mean = 10.00 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 29 
 Blind Sample ID = 33127-67133  Mean = 7.32 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 31 
 Blind Sample ID = 33127-67123  Mean = 7.44 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 8 
 Blind Sample ID = 3308/67DW  Mean = 1.19 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 23 
 Blind Sample ID = 3306/67DW  Mean = 2.59 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 15 
 Blind Sample ID = 3304/67DW  Mean = 3.49 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 22 
 Blind Sample ID = 3300/67DW  Mean = 15.86 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 7 
 Blind Sample ID = 25M4/7594  Mean = 7.93 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7598  Mean = 5.48 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7597  Mean = 10.57 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 7 
 Blind Sample ID = 25DW/7596  Mean = 5.93 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7595  Mean = 6.10 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 5 
 Blind Sample ID = 25DW/7582  Mean = 7.36 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7511  Mean = 6.70 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 8 
 Blind Sample ID = 25DW/7510  Mean = 16.47 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 15 
 Blind Sample ID = 25DW/7508  Mean = 6.05 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 11 
 Blind Sample ID = 25DW/7507  Mean = 5.83 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 37 
 Blind Sample ID = 25DW/7504  Mean = 5.68 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7503  Mean = 5.30 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7502  Mean = 7.76 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 22 
 Blind Sample ID = 25DW/7500  Mean = 3.31 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 23 
 Blind Sample ID = 25DW-75121  Mean = 5.69 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 30 
 Blind Sample ID = 25DW-75113  Mean = 18.94 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75105  Mean = 1.05 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 33 
 Blind Sample ID = 25DIW-75151  Mean = 9.17 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 38 
 Blind Sample ID = 25DIW-75150  Mean = 5.42 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 60 
 Blind Sample ID = 25DIW-75144  Mean = 6.63 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 29 
 Blind Sample ID = 25DIW-75138  Mean = 3.24 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 17 
 Blind Sample ID = 25DIW-75135  Mean = 4.39 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 18 
 Blind Sample ID = 25DIW-75131  Mean = 7.21 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 56 
 Blind Sample ID = 25DIW-75127  Mean = 7.99 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 16 
 Blind Sample ID = 2599/7501  Mean = 8.08 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 9 
 Blind Sample ID = 2598/7502  Mean = 9.98 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 4 
 Blind Sample ID = 2598/7500  Mean = 11.57 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 7 
 Blind Sample ID = 2596/7598  Mean = 13.07 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 14 
 Blind Sample ID = 2594/75M6  Mean = 15.44 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 9 
 Blind Sample ID = 2594/7596  Mean = 10.34 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 27 
 Blind Sample ID = 25159-75155  Mean = 12.32 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 12 
 Blind Sample ID = 25157-75159  Mean = 13.42 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 28 
 Blind Sample ID = 25155-75157  Mean = 6.85 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 12 
 Blind Sample ID = 25155-75153  Mean = 3.58 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 28 
 Blind Sample ID = 25155-75151  Mean = 20.97 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 12 
 Blind Sample ID = 25155-75147  Mean = 18.85 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 26 
 Blind Sample ID = 25151-75147  Mean = 9.95 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 39 
 Blind Sample ID = 25150-75004  Mean = 14.47 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 26 
 Blind Sample ID = 25147-75145  Mean = 8.07 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 34 
 Blind Sample ID = 25146-75142  Mean = 8.77 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 23 
 Blind Sample ID = 25144-75146  Mean = 9.15 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 34 
 Blind Sample ID = 25141-75139  Mean = 7.47 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 24 
 Blind Sample ID = 25139-75137  Mean = 7.56 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 26 
 Blind Sample ID = 25138-75140  Mean = 4.91 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 14 
 Blind Sample ID = 25137-75135  Mean = 9.83 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 16 
 Blind Sample ID = 25133-75127  Mean = 6.29 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 42 
 Blind Sample ID = 25127-75125  Mean = 8.51 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 105 
 Blind Sample ID = 25125-75127  Mean = 6.89 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 62 
 Blind Sample ID = 25125-75113  Mean = 8.60 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 24 
 Blind Sample ID = 25123-75127  Mean = 8.66 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 56 
 Blind Sample ID = 25117-75113  Mean = 7.35 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 55 
 Blind Sample ID = 25101-75113  Mean = 8.08 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 6 
 Blind Sample ID = 2510/7504  Mean = 5.14 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 15 
 Blind Sample ID = 2509/7501  Mean = 7.63 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 7 
 Blind Sample ID = 2506/7510  Mean = 16.00 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 3 
 Blind Sample ID = 2506/7508  Mean = 11.78 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 23 
 Blind Sample ID = 2505/7501  Mean = 8.60 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 4 
 Blind Sample ID = 2504/7510  Mean = 7.20 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 10 
 Blind Sample ID = 2504/7502  Mean = 7.47 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 17 
 Blind Sample ID = 2502/7504  Mean = 9.83 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 18 
 Blind Sample ID = 2501/7599  Mean = 1.66 
 % Relative Standard Deviation = 5.8 
 Number of Observations = 47 
 Blind Sample ID = 2501/7509  Mean = 20.69 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 13 
 Blind Sample ID = 2501/7505  Mean = 5.62 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 36 
 Blind Sample ID = 25004-75152  Mean = 10.45 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 11 
 Blind Sample ID = 2500/7598  Mean = 8.50 
 % Relative Standard Deviation = 38.8 
 Number of Observations = 24 
 Blind Sample ID =
The SGPlot Procedure



- Silica, FIL, ICP-OES, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00955, MCode: PLA09
Dates: 10/08/92 through 09/27/94
Open Data Set

 Mean = 3.03 
 % Relative Standard Deviation = 7.2 
 Number of Observations = 8 
 Blind Sample ID = 75DW-25117  Mean = 2.60 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 6 
 Blind Sample ID = 67DW-33113  Mean = 6.11 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 8 
 Blind Sample ID = 50DW-50117  Mean = 3.04 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 8 
 Blind Sample ID = 33DW-67121  Mean = 3.43 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75121
The SGPlot Procedure



- Sodium, FIL, AA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00930, MCode: AA035
Dates: 10/03/86 through 03/29/96
Open Data Set

 Mean = 60.75 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 4 
 Blind Sample ID = ST96  Mean = 280.63 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 16 
 Blind Sample ID = ST00  Mean = 8.56 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 16 
 Blind Sample ID = 67DIW-33122  Mean = 8.45 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 20 
 Blind Sample ID = 67DIW-33120  Mean = 4.27 
 % Relative Standard Deviation = 6.8 
 Number of Observations = 10 
 Blind Sample ID = 50M6/50DW  Mean = 12.20 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 5 
 Blind Sample ID = 50DW/5098  Mean = 29.75 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 20 
 Blind Sample ID = 50DW/5096  Mean = 3.13 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5082  Mean = 20.88 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 16 
 Blind Sample ID = 50DW/5012  Mean = 151.11 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 18 
 Blind Sample ID = 50DW/5008  Mean = 44.92 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 13 
 Blind Sample ID = 50DW/5004  Mean = 130.00 
 % Relative Standard Deviation = 8.9 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5000  Mean = 83.22 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 18 
 Blind Sample ID = 50DW-50124  Mean = 12.22 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 9 
 Blind Sample ID = 50DW-50122  Mean = 33.09 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 11 
 Blind Sample ID = 50DW-50118  Mean = 20.11 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 36 
 Blind Sample ID = 50DW-50112  Mean = 44.00 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 3 
 Blind Sample ID = 50DW-50104  Mean = 62.78 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 27 
 Blind Sample ID = 50DIW-50128  Mean = 12.67 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 6 
 Blind Sample ID = 5098/50DW  Mean = 56.40 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 5 
 Blind Sample ID = 5098/5004  Mean = 29.43 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 14 
 Blind Sample ID = 5096/50DW  Mean = 74.25 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 4 
 Blind Sample ID = 5094/50M6  Mean = 73.62 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 13 
 Blind Sample ID = 5094/50M4  Mean = 73.33 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 6 
 Blind Sample ID = 5094/5082  Mean = 51.00 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 15 
 Blind Sample ID = 5014/5096  Mean = 41.85 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 13 
 Blind Sample ID = 5014/5012  Mean = 91.83 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 6 
 Blind Sample ID = 50128-50134  Mean = 85.14 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 7 
 Blind Sample ID = 50128-50132  Mean = 72.09 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 11 
 Blind Sample ID = 50126-50128  Mean = 89.88 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 8 
 Blind Sample ID = 50126-50124  Mean = 21.73 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 11 
 Blind Sample ID = 50126-50122  Mean = 74.33 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 24 
 Blind Sample ID = 50120-50128  Mean = 97.17 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 6 
 Blind Sample ID = 50120-50124  Mean = 32.83 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 12 
 Blind Sample ID = 50120-50112  Mean = 123.33 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 3 
 Blind Sample ID = 50115-50103  Mean = 41.25 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 4 
 Blind Sample ID = 50114-50112  Mean = 96.17 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 12 
 Blind Sample ID = 50110-50112  Mean = 48.33 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 6 
 Blind Sample ID = 50106-50104  Mean = 224.62 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 13 
 Blind Sample ID = 5010/5008  Mean = 119.23 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 13 
 Blind Sample ID = 5010/5004  Mean = 62.85 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 27 
 Blind Sample ID = 5007/5003  Mean = 48.58 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 12 
 Blind Sample ID = 5006/5004  Mean = 43.42 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 24 
 Blind Sample ID = 5004/50DW  Mean = 100.25 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 12 
 Blind Sample ID = 5003/5001  Mean = 98.29 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 7 
 Blind Sample ID = 5002/5004  Mean = 152.50 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 12 
 Blind Sample ID = 5000/5098  Mean = 170.00 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 18 
 Blind Sample ID = 5000/5096  Mean = 193.33 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 6 
 Blind Sample ID = 5000/5002  Mean = 28.33 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 6 
 Blind Sample ID = 33DW/6714  Mean = 27.60 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6712  Mean = 6.20 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 18 
 Blind Sample ID = 33DW-67106  Mean = 43.50 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 4 
 Blind Sample ID = 25DW/7596  Mean = 35.50 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 6 
 Blind Sample ID = 25DIW-75132  Mean = 95.06 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75128  Mean = 13.50 
 % Relative Standard Deviation = 7.2 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75126  Mean = 19.13 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75122  Mean = 18.92 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75120  Mean = 218.33 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 6 
 Blind Sample ID = 2598/7500  Mean = 243.75 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 8 
 Blind Sample ID = 2594/7500  Mean = 57.60 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 5 
 Blind Sample ID = 25132-75134  Mean = 38.83 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 6 
 Blind Sample ID = 25132-75130  Mean = 101.67 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 6 
 Blind Sample ID = 25130-75128  Mean = 76.33 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 6 
 Blind Sample ID = 25128-75134  Mean = 45.09 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 11 
 Blind Sample ID = 25128-75126  Mean = 99.00 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 23 
 Blind Sample ID = 25126-75128  Mean = 128.75 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 24 
 Blind Sample ID = 25126-75124  Mean = 54.18 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 11 
 Blind Sample ID = 25124-75126  Mean = 99.35 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 17 
 Blind Sample ID = 25122-75128  Mean = 130.00 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 12 
 Blind Sample ID = 25122-75124  Mean = 19.55 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 22 
 Blind Sample ID = 25120-75126  Mean = 25.48 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 31 
 Blind Sample ID = 25120-75122  Mean = 56.55 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 11 
 Blind Sample ID = 25120-75118  Mean = 47.40 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 10 
 Blind Sample ID = 25118-75112  Mean = 17.33 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 12 
 Blind Sample ID = 25114-75106  Mean = 75.82 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 11 
 Blind Sample ID = 25114-75104  Mean = 122.50 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 12 
 Blind Sample ID = 25112-75110  Mean = 17.33 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 12 
 Blind Sample ID = 25112-75106  Mean = 68.13 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 23 
 Blind Sample ID = 25110-75112  Mean = 32.88 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 24 
 Blind Sample ID = 25106-75112  Mean = 52.67 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 12 
 Blind Sample ID = 25104-75112  Mean = 245.63 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 16 
 Blind Sample ID = 2501/7505  Mean = 91.25 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 4 
 Blind Sample ID = 2500/7598
The SGPlot Procedure



- Sodium, FIL, AA, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00930, MCode: AA036
Dates: 10/14/86 through 07/24/96
Open Data Set

 Mean = 0.12 
 % Relative Standard Deviation = 16.8 
 Number of Observations = 4 
 Blind Sample ID = P9  Mean = 0.08 
 % Relative Standard Deviation = 17.9 
 Number of Observations = 34 
 Blind Sample ID = P8  Mean = 0.15 
 % Relative Standard Deviation = 11.6 
 Number of Observations = 7 
 Blind Sample ID = P5  Mean = 1.60 
 % Relative Standard Deviation = 6.2 
 Number of Observations = 3 
 Blind Sample ID = P3  Mean = 0.51 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 6 
 Blind Sample ID = P23  Mean = 0.10 
 % Relative Standard Deviation = 10.8 
 Number of Observations = 13 
 Blind Sample ID = P21  Mean = 0.19 
 % Relative Standard Deviation = 12.9 
 Number of Observations = 15 
 Blind Sample ID = P20  Mean = 0.07 
 % Relative Standard Deviation = 17.3 
 Number of Observations = 15 
 Blind Sample ID = P19  Mean = 0.77 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 23 
 Blind Sample ID = P18  Mean = 0.28 
 % Relative Standard Deviation = 8.1 
 Number of Observations = 35 
 Blind Sample ID = P17  Mean = 0.58 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 54 
 Blind Sample ID = P16  Mean = 0.91 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 31 
 Blind Sample ID = P15  Mean = 1.39 
 % Relative Standard Deviation = 7.1 
 Number of Observations = 41 
 Blind Sample ID = P14  Mean = 0.04 
 % Relative Standard Deviation = 33.4 
 Number of Observations = 37 
 Blind Sample ID = P13  Mean = 0.72 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 29 
 Blind Sample ID = P12  Mean = 1.61 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 46 
 Blind Sample ID = P11  Mean = 0.52 
 % Relative Standard Deviation = 105.3 
 Number of Observations = 14 
 Blind Sample ID =
The SGPlot Procedure



- Sodium, FIL, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00930, MCode: PLA11
Dates: 10/01/86 through 09/27/01
Open Data Set

 Mean = 8.65 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 22 
 Blind Sample ID = STM6  Mean = 25.50 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 16 
 Blind Sample ID = ST98  Mean = 59.08 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 65 
 Blind Sample ID = ST97  Mean = 60.31 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 13 
 Blind Sample ID = ST96  Mean = 189.41 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 17 
 Blind Sample ID = ST95  Mean = 141.07 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 28 
 Blind Sample ID = ST94  Mean = 4.73 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 8 
 Blind Sample ID = ST93  Mean = 80.77 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 13 
 Blind Sample ID = ST85  Mean = 6.69 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 7 
 Blind Sample ID = ST83  Mean = 6.36 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 19 
 Blind Sample ID = ST82  Mean = 33.17 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 12 
 Blind Sample ID = ST81  Mean = 2.15 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 27 
 Blind Sample ID = P31  Mean = 0.33 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 24 
 Blind Sample ID = P30  Mean = 4.31 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 3 
 Blind Sample ID = P26  Mean = 0.25 
 % Relative Standard Deviation = 9.0 
 Number of Observations = 3 
 Blind Sample ID = P24  Mean = 6.96 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 28 
 Blind Sample ID = 75DIW-25155  Mean = 11.05 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25146  Mean = 22.80 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 10 
 Blind Sample ID = 75DIW-25139  Mean = 7.81 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25138  Mean = 5.48 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 14 
 Blind Sample ID = 75DIW-25137  Mean = 8.71 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25130  Mean = 8.48 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 16 
 Blind Sample ID = 67DW-33122  Mean = 8.21 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 64 
 Blind Sample ID = 67DW-33120  Mean = 22.73 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33118  Mean = 14.19 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 32 
 Blind Sample ID = 67DW-33114  Mean = 34.18 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 17 
 Blind Sample ID = 67DW-33113  Mean = 29.27 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33104  Mean = 15.54 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 24 
 Blind Sample ID = 67DIW-33132  Mean = 11.75 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 82.00 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 6 
 Blind Sample ID = 50DW-50124  Mean = 20.71 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 17 
 Blind Sample ID = 50DW-50112  Mean = 43.40 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 10 
 Blind Sample ID = 50DW-50104  Mean = 20.57 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 14 
 Blind Sample ID = 50DIW-50145  Mean = 15.61 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 22 
 Blind Sample ID = 50DIW-50138  Mean = 61.11 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 9 
 Blind Sample ID = 50DIW-50128  Mean = 157.23 
 % Relative Standard Deviation = 21.0 
 Number of Observations = 25 
 Blind Sample ID = 5099/5093  Mean = 169.23 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 13 
 Blind Sample ID = 5099/5083  Mean = 189.03 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 31 
 Blind Sample ID = 5097/5099  Mean = 76.10 
 % Relative Standard Deviation = 20.0 
 Number of Observations = 25 
 Blind Sample ID = 5097/5001  Mean = 41.05 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 41 
 Blind Sample ID = 5093/5087  Mean = 30.74 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 12 
 Blind Sample ID = 50157-50DIW  Mean = 7.97 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 40 
 Blind Sample ID = 50152-50DIW  Mean = 54.01 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 18 
 Blind Sample ID = 50147-50151  Mean = 46.69 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 16 
 Blind Sample ID = 50145-50147  Mean = 44.77 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 21 
 Blind Sample ID = 50143-50151  Mean = 37.86 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 22 
 Blind Sample ID = 50143-50145  Mean = 57.66 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 18 
 Blind Sample ID = 50140-50144  Mean = 65.82 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 26 
 Blind Sample ID = 50139-50145  Mean = 63.31 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 10 
 Blind Sample ID = 50139-50141  Mean = 35.20 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 48 
 Blind Sample ID = 50138-50140  Mean = 28.23 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 18 
 Blind Sample ID = 50137-50143  Mean = 27.95 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 28 
 Blind Sample ID = 50137-50141  Mean = 57.25 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 16 
 Blind Sample ID = 50137-50139  Mean = 61.45 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 4 
 Blind Sample ID = 50135-50139  Mean = 26.69 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 34 
 Blind Sample ID = 50135-50137  Mean = 50.14 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 18 
 Blind Sample ID = 50134-50140  Mean = 54.11 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 18 
 Blind Sample ID = 50132-50134  Mean = 21.50 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 48 
 Blind Sample ID = 50131-50125  Mean = 41.46 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 24 
 Blind Sample ID = 50130-50132  Mean = 91.33 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 6 
 Blind Sample ID = 50128-50134  Mean = 83.91 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 11 
 Blind Sample ID = 50128-50132  Mean = 90.75 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 4 
 Blind Sample ID = 50126-50124  Mean = 26.48 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 25 
 Blind Sample ID = 50125-50135  Mean = 13.04 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 24 
 Blind Sample ID = 50123-50121  Mean = 14.75 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 24 
 Blind Sample ID = 50121-50125  Mean = 155.68 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 44 
 Blind Sample ID = 50121-50105  Mean = 96.17 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 6 
 Blind Sample ID = 50120-50124  Mean = 122.95 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 44 
 Blind Sample ID = 50115-50103  Mean = 41.67 
 % Relative Standard Deviation = 7.5 
 Number of Observations = 6 
 Blind Sample ID = 50114-50112  Mean = 37.08 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 49 
 Blind Sample ID = 5011/5007  Mean = 25.33 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 12 
 Blind Sample ID = 50106-50112  Mean = 157.29 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 48 
 Blind Sample ID = 50105-50117  Mean = 100.98 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 46 
 Blind Sample ID = 50103-50101  Mean = 64.64 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 25 
 Blind Sample ID = 5007/5003  Mean = 59.07 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 61 
 Blind Sample ID = 5007/5001  Mean = 78.82 
 % Relative Standard Deviation = 24.2 
 Number of Observations = 19 
 Blind Sample ID = 5003/5097  Mean = 100.39 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 36 
 Blind Sample ID = 5003/5001  Mean = 39.46 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 16 
 Blind Sample ID = 50004-50DIW  Mean = 2.89 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 33 
 Blind Sample ID = 33M6/67DW  Mean = 17.36 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6798  Mean = 41.56 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 27 
 Blind Sample ID = 33DW/6797  Mean = 3.19 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 45 
 Blind Sample ID = 33DW/6793  Mean = 29.31 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 16 
 Blind Sample ID = 33DW/6714  Mean = 36.60 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 5 
 Blind Sample ID = 33DW/6711  Mean = 100.95 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 21 
 Blind Sample ID = 33DW/6710  Mean = 201.36 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 22 
 Blind Sample ID = 33DW/6708  Mean = 14.10 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6707  Mean = 6.25 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6706  Mean = 60.50 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6704  Mean = 72.15 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 26 
 Blind Sample ID = 33DW/6703  Mean = 73.32 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 19 
 Blind Sample ID = 33DW/6702  Mean = 187.50 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 24 
 Blind Sample ID = 33DW/6700  Mean = 11.65 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67126  Mean = 12.94 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 16 
 Blind Sample ID = 33DW-67123  Mean = 16.89 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67122  Mean = 4.83 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 13 
 Blind Sample ID = 33DW-67121  Mean = 16.75 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 53 
 Blind Sample ID = 33DW-67120  Mean = 44.56 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 25 
 Blind Sample ID = 33DW-67118  Mean = 91.88 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 16 
 Blind Sample ID = 33DW-67115  Mean = 28.57 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67114  Mean = 101.33 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 27 
 Blind Sample ID = 33DW-67110  Mean = 6.04 
 % Relative Standard Deviation = 5.6 
 Number of Observations = 10 
 Blind Sample ID = 33DW-67106  Mean = 57.42 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67104  Mean = 8.62 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 49 
 Blind Sample ID = 3398/67DW  Mean = 20.36 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 22 
 Blind Sample ID = 3396/67DW  Mean = 49.52 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 23 
 Blind Sample ID = 3394/67DW  Mean = 41.10 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 29 
 Blind Sample ID = 33127-67133  Mean = 35.35 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 31 
 Blind Sample ID = 33127-67123  Mean = 14.31 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 13 
 Blind Sample ID = 3312/67DW  Mean = 101.67 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 12 
 Blind Sample ID = 3308/67DW  Mean = 3.18 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 36 
 Blind Sample ID = 3306/67DW  Mean = 30.60 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 15 
 Blind Sample ID = 3304/67DW  Mean = 96.72 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 32 
 Blind Sample ID = 3300/67DW  Mean = 104.29 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 7 
 Blind Sample ID = 25M4/7594  Mean = 19.11 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7598  Mean = 45.80 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7597  Mean = 45.45 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 20 
 Blind Sample ID = 25DW/7596  Mean = 143.16 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7595  Mean = 4.82 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 5 
 Blind Sample ID = 25DW/7582  Mean = 32.93 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7514  Mean = 31.79 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 24 
 Blind Sample ID = 25DW/7512  Mean = 41.93 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7511  Mean = 115.00 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7510  Mean = 228.50 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 20 
 Blind Sample ID = 25DW/7508  Mean = 16.18 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 11 
 Blind Sample ID = 25DW/7507  Mean = 68.45 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 44 
 Blind Sample ID = 25DW/7504  Mean = 81.05 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 19 
 Blind Sample ID = 25DW/7503  Mean = 83.04 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7502  Mean = 213.60 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7500  Mean = 13.29 
 % Relative Standard Deviation = 6.2 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75126  Mean = 125.00 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75124  Mean = 19.13 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75122  Mean = 5.26 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 23 
 Blind Sample ID = 25DW-75121  Mean = 49.63 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75118  Mean = 77.10 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 30 
 Blind Sample ID = 25DW-75113  Mean = 30.68 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 31 
 Blind Sample ID = 25DW-75112  Mean = 112.50 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75110  Mean = 7.07 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75106  Mean = 221.25 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75105  Mean = 64.56 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75104  Mean = 41.34 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 33 
 Blind Sample ID = 25DIW-75151  Mean = 112.57 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 26 
 Blind Sample ID = 25DIW-75142  Mean = 80.15 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 52 
 Blind Sample ID = 25DIW-75136  Mean = 22.65 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 17 
 Blind Sample ID = 25DIW-75135  Mean = 45.80 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75134  Mean = 35.50 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 6 
 Blind Sample ID = 25DIW-75132  Mean = 15.67 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 18 
 Blind Sample ID = 25DIW-75131  Mean = 26.36 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75130  Mean = 91.19 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75128  Mean = 49.21 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 56 
 Blind Sample ID = 25DIW-75127  Mean = 156.25 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 16 
 Blind Sample ID = 2599/7501  Mean = 90.11 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 9 
 Blind Sample ID = 2598/7502  Mean = 207.50 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 4 
 Blind Sample ID = 2598/7500  Mean = 34.71 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 7 
 Blind Sample ID = 2596/7598  Mean = 48.89 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 9 
 Blind Sample ID = 2596/7514  Mean = 42.57 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 14 
 Blind Sample ID = 2594/75M6  Mean = 82.33 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 9 
 Blind Sample ID = 2594/7596  Mean = 45.71 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 27 
 Blind Sample ID = 25159-75155  Mean = 90.93 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 12 
 Blind Sample ID = 25157-75159  Mean = 54.48 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 28 
 Blind Sample ID = 25155-75157  Mean = 28.26 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 12 
 Blind Sample ID = 25155-75153  Mean = 49.00 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 28 
 Blind Sample ID = 25155-75151  Mean = 46.83 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 12 
 Blind Sample ID = 25155-75147  Mean = 17.04 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 40 
 Blind Sample ID = 25152-75150  Mean = 53.81 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 26 
 Blind Sample ID = 25151-75147  Mean = 64.14 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 22 
 Blind Sample ID = 25150-75004  Mean = 44.15 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 26 
 Blind Sample ID = 25147-75145  Mean = 68.20 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 18 
 Blind Sample ID = 25146-75144  Mean = 35.27 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 16 
 Blind Sample ID = 25146-75138  Mean = 132.24 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 28 
 Blind Sample ID = 25144-75142  Mean = 77.50 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 34 
 Blind Sample ID = 25141-75139  Mean = 33.33 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 32 
 Blind Sample ID = 25140-75138  Mean = 55.70 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 20 
 Blind Sample ID = 2514/7596  Mean = 39.41 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 24 
 Blind Sample ID = 25139-75137  Mean = 95.10 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 28 
 Blind Sample ID = 25134-75136  Mean = 107.50 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 12 
 Blind Sample ID = 25134-75128  Mean = 56.63 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 16 
 Blind Sample ID = 25133-75127  Mean = 57.25 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 4 
 Blind Sample ID = 25132-75134  Mean = 38.46 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 30 
 Blind Sample ID = 25132-75130  Mean = 101.78 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 9 
 Blind Sample ID = 25130-75128  Mean = 75.00 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 5 
 Blind Sample ID = 25128-75134  Mean = 33.14 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 42 
 Blind Sample ID = 25127-75125  Mean = 54.54 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 105 
 Blind Sample ID = 25125-75127  Mean = 82.87 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 62 
 Blind Sample ID = 25125-75113  Mean = 53.83 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 23 
 Blind Sample ID = 25123-75127  Mean = 55.92 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 12 
 Blind Sample ID = 2512/7596  Mean = 82.34 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 56 
 Blind Sample ID = 25117-75113  Mean = 100.29 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 55 
 Blind Sample ID = 25101-75113  Mean = 108.18 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 11 
 Blind Sample ID = 2510/7504  Mean = 74.33 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 15 
 Blind Sample ID = 2509/7501  Mean = 145.00 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 6 
 Blind Sample ID = 2508/7504  Mean = 223.33 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 6 
 Blind Sample ID = 2506/7508  Mean = 146.96 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 23 
 Blind Sample ID = 2505/7501  Mean = 102.70 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 10 
 Blind Sample ID = 2504/7502  Mean = 95.06 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 17 
 Blind Sample ID = 2502/7504  Mean = 264.44 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 18 
 Blind Sample ID = 2501/7599  Mean = 33.64 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 44 
 Blind Sample ID = 2501/7509  Mean = 247.69 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 13 
 Blind Sample ID = 2501/7505  Mean = 90.00 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 11 
 Blind Sample ID = 2500/7598  Mean = 104.44 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 9 
 Blind Sample ID = 2500/7514  Mean = 104.46 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 13 
 Blind Sample ID = 2500/7512  Mean = 13.35 
 % Relative Standard Deviation = 49.4 
 Number of Observations = 28 
 Blind Sample ID =
The SGPlot Procedure



- Sodium, FIL, ICP-OES, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00930, MCode: PLA09
Dates: 10/08/92 through 01/31/97
Open Data Set

 Mean = 0.26 
 % Relative Standard Deviation = 51.6 
 Number of Observations = 5 
 Blind Sample ID = P21  Mean = 5.07 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 8 
 Blind Sample ID = 75DW-25117  Mean = 5.72 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 11 
 Blind Sample ID = 75DIW-25125  Mean = 34.50 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 8 
 Blind Sample ID = 67DW-33113  Mean = 10.38 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 8 
 Blind Sample ID = 50DW-50117  Mean = 4.91 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 8 
 Blind Sample ID = 33DW-67121  Mean = 5.40 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75121
The SGPlot Procedure



- Solids, ROE@180 Deg C (TDS), FIL, GRAV -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 70300, MCode: ROE10
Dates: 10/01/86 through 09/27/01
Open Data Set

 Mean = 163.72 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 29 
 Blind Sample ID = STM6  Mean = 307.55 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 20 
 Blind Sample ID = ST98  Mean = 404.71 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 17 
 Blind Sample ID = ST96  Mean = 939.56 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 27 
 Blind Sample ID = ST94  Mean = 90.38 
 % Relative Standard Deviation = 12.3 
 Number of Observations = 16 
 Blind Sample ID = ST82  Mean = 2063.85 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 13 
 Blind Sample ID = ST00  Mean = 138.83 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 30 
 Blind Sample ID = 75DIW-25144  Mean = 39.86 
 % Relative Standard Deviation = 10.2 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25138  Mean = 50.59 
 % Relative Standard Deviation = 14.6 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25130  Mean = 53.75 
 % Relative Standard Deviation = 17.4 
 Number of Observations = 16 
 Blind Sample ID = 67DW-33122  Mean = 117.06 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 64 
 Blind Sample ID = 67DW-33120  Mean = 150.07 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 14 
 Blind Sample ID = 67DW-33118  Mean = 61.69 
 % Relative Standard Deviation = 16.1 
 Number of Observations = 32 
 Blind Sample ID = 67DW-33114  Mean = 190.64 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 14 
 Blind Sample ID = 67DW-33104  Mean = 87.75 
 % Relative Standard Deviation = 12.2 
 Number of Observations = 24 
 Blind Sample ID = 67DIW-33132  Mean = 67.58 
 % Relative Standard Deviation = 16.4 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 54.00 
 % Relative Standard Deviation = 9.4 
 Number of Observations = 16 
 Blind Sample ID = 67DIW-33122  Mean = 116.20 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 20 
 Blind Sample ID = 67DIW-33120  Mean = 89.60 
 % Relative Standard Deviation = 14.0 
 Number of Observations = 10 
 Blind Sample ID = 50M6/50DW  Mean = 152.33 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5098  Mean = 200.19 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 21 
 Blind Sample ID = 50DW/5096  Mean = 43.00 
 % Relative Standard Deviation = 10.9 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5082  Mean = 84.71 
 % Relative Standard Deviation = 9.0 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5012  Mean = 621.22 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 18 
 Blind Sample ID = 50DW/5008  Mean = 292.86 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5004  Mean = 1016.50 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5000  Mean = 656.00 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 23 
 Blind Sample ID = 50DW-50124  Mean = 79.25 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50122  Mean = 220.42 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50118  Mean = 83.32 
 % Relative Standard Deviation = 8.3 
 Number of Observations = 53 
 Blind Sample ID = 50DW-50112  Mean = 281.92 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 13 
 Blind Sample ID = 50DW-50104  Mean = 77.15 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 48 
 Blind Sample ID = 50DIW-50138  Mean = 287.75 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 52 
 Blind Sample ID = 50DIW-50136  Mean = 101.20 
 % Relative Standard Deviation = 5.6 
 Number of Observations = 30 
 Blind Sample ID = 50DIW-50130  Mean = 345.03 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 37 
 Blind Sample ID = 50DIW-50128  Mean = 149.00 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 7 
 Blind Sample ID = 5098/50DW  Mean = 439.40 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 5 
 Blind Sample ID = 5098/5004  Mean = 198.14 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 14 
 Blind Sample ID = 5096/50DW  Mean = 539.25 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 4 
 Blind Sample ID = 5094/50M6  Mean = 496.93 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 15 
 Blind Sample ID = 5094/50M4  Mean = 511.86 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 7 
 Blind Sample ID = 5094/5082  Mean = 35.35 
 % Relative Standard Deviation = 21.3 
 Number of Observations = 40 
 Blind Sample ID = 50152-50DIW  Mean = 657.03 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 32 
 Blind Sample ID = 50142-50144  Mean = 473.33 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 18 
 Blind Sample ID = 50140-50144  Mean = 285.50 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 16 
 Blind Sample ID = 5014/5096  Mean = 175.60 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 10 
 Blind Sample ID = 5014/5012  Mean = 271.34 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 47 
 Blind Sample ID = 50138-50140  Mean = 363.23 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 30 
 Blind Sample ID = 50136-50138  Mean = 384.24 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 17 
 Blind Sample ID = 50134-50140  Mean = 471.18 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 68 
 Blind Sample ID = 50134-50136  Mean = 328.94 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 18 
 Blind Sample ID = 50132-50134  Mean = 388.03 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 30 
 Blind Sample ID = 50130-50136  Mean = 240.00 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 24 
 Blind Sample ID = 50130-50132  Mean = 529.42 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 12 
 Blind Sample ID = 50128-50134  Mean = 485.67 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 18 
 Blind Sample ID = 50128-50132  Mean = 390.00 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 11 
 Blind Sample ID = 50126-50128  Mean = 701.11 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 9 
 Blind Sample ID = 50126-50124  Mean = 119.50 
 % Relative Standard Deviation = 7.1 
 Number of Observations = 12 
 Blind Sample ID = 50126-50122  Mean = 527.04 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 24 
 Blind Sample ID = 50120-50128  Mean = 829.42 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 12 
 Blind Sample ID = 50120-50124  Mean = 259.08 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 12 
 Blind Sample ID = 50120-50112  Mean = 182.90 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 10 
 Blind Sample ID = 50114-50112  Mean = 530.64 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 11 
 Blind Sample ID = 50110-50118  Mean = 397.45 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 11 
 Blind Sample ID = 50110-50112  Mean = 124.57 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 14 
 Blind Sample ID = 50106-50112  Mean = 324.17 
 % Relative Standard Deviation = 9.3 
 Number of Observations = 6 
 Blind Sample ID = 50106-50104  Mean = 934.25 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 12 
 Blind Sample ID = 5010/5008  Mean = 596.44 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 16 
 Blind Sample ID = 5010/5004  Mean = 330.00 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 12 
 Blind Sample ID = 5006/5004  Mean = 289.35 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 23 
 Blind Sample ID = 5004/50DW  Mean = 723.29 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 7 
 Blind Sample ID = 5002/5004  Mean = 212.56 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 16 
 Blind Sample ID = 50004-50DIW  Mean = 1169.17 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 12 
 Blind Sample ID = 5000/5098  Mean = 1203.16 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 19 
 Blind Sample ID = 5000/5096  Mean = 1483.33 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 6 
 Blind Sample ID = 5000/5002  Mean = 53.60 
 % Relative Standard Deviation = 10.6 
 Number of Observations = 35 
 Blind Sample ID = 33M6/67DW  Mean = 196.55 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6798  Mean = 121.33 
 % Relative Standard Deviation = 7.8 
 Number of Observations = 18 
 Blind Sample ID = 33DW/6714  Mean = 110.53 
 % Relative Standard Deviation = 9.0 
 Number of Observations = 15 
 Blind Sample ID = 33DW/6712  Mean = 427.60 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6710  Mean = 825.05 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 22 
 Blind Sample ID = 33DW/6708  Mean = 51.45 
 % Relative Standard Deviation = 12.7 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6706  Mean = 390.00 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6704  Mean = 576.60 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6702  Mean = 1340.83 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 24 
 Blind Sample ID = 33DW/6700  Mean = 52.00 
 % Relative Standard Deviation = 18.1 
 Number of Observations = 22 
 Blind Sample ID = 33DW-67126  Mean = 107.60 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 25 
 Blind Sample ID = 33DW-67122  Mean = 234.11 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 53 
 Blind Sample ID = 33DW-67120  Mean = 296.69 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67118  Mean = 124.43 
 % Relative Standard Deviation = 7.6 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67114  Mean = 421.18 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67110  Mean = 46.79 
 % Relative Standard Deviation = 26.0 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67106  Mean = 380.00 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67104  Mean = 237.95 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67134  Mean = 189.09 
 % Relative Standard Deviation = 7.9 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67132  Mean = 134.35 
 % Relative Standard Deviation = 9.1 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67130  Mean = 53.17 
 % Relative Standard Deviation = 11.8 
 Number of Observations = 24 
 Blind Sample ID = 33DIW-67126  Mean = 111.09 
 % Relative Standard Deviation = 7.1 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67122  Mean = 238.25 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 24 
 Blind Sample ID = 33DIW-67120  Mean = 102.14 
 % Relative Standard Deviation = 7.5 
 Number of Observations = 49 
 Blind Sample ID = 3398/67DW  Mean = 132.33 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 21 
 Blind Sample ID = 3396/67DW  Mean = 317.43 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 23 
 Blind Sample ID = 3394/67DW  Mean = 55.31 
 % Relative Standard Deviation = 17.3 
 Number of Observations = 13 
 Blind Sample ID = 3312/67DW  Mean = 419.67 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 15 
 Blind Sample ID = 3308/67DW  Mean = 22.74 
 % Relative Standard Deviation = 30.6 
 Number of Observations = 35 
 Blind Sample ID = 3306/67DW  Mean = 187.93 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 15 
 Blind Sample ID = 3304/67DW  Mean = 662.87 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 31 
 Blind Sample ID = 3300/67DW  Mean = 705.29 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 7 
 Blind Sample ID = 25M4/7594  Mean = 232.81 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 21 
 Blind Sample ID = 25DW/7598  Mean = 297.71 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 24 
 Blind Sample ID = 25DW/7596  Mean = 700.08 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7594  Mean = 77.83 
 % Relative Standard Deviation = 8.4 
 Number of Observations = 6 
 Blind Sample ID = 25DW/7582  Mean = 135.27 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 15 
 Blind Sample ID = 25DW/7514  Mean = 123.83 
 % Relative Standard Deviation = 8.1 
 Number of Observations = 24 
 Blind Sample ID = 25DW/7512  Mean = 491.07 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 15 
 Blind Sample ID = 25DW/7510  Mean = 943.20 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 20 
 Blind Sample ID = 25DW/7508  Mean = 435.57 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 44 
 Blind Sample ID = 25DW/7504  Mean = 663.39 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7502  Mean = 1536.00 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7500  Mean = 58.85 
 % Relative Standard Deviation = 17.4 
 Number of Observations = 13 
 Blind Sample ID = 25DW-75126  Mean = 981.13 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75124  Mean = 125.88 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75122  Mean = 337.25 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75118  Mean = 129.48 
 % Relative Standard Deviation = 8.7 
 Number of Observations = 29 
 Blind Sample ID = 25DW-75112  Mean = 473.38 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75110  Mean = 57.87 
 % Relative Standard Deviation = 10.6 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75106  Mean = 423.06 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75104  Mean = 67.41 
 % Relative Standard Deviation = 11.0 
 Number of Observations = 41 
 Blind Sample ID = 25DIW-75150  Mean = 415.67 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 60 
 Blind Sample ID = 25DIW-75144  Mean = 568.44 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 25 
 Blind Sample ID = 25DIW-75142  Mean = 114.40 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 30 
 Blind Sample ID = 25DIW-75138  Mean = 428.04 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 52 
 Blind Sample ID = 25DIW-75136  Mean = 271.07 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75134  Mean = 205.08 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75132  Mean = 147.54 
 % Relative Standard Deviation = 7.2 
 Number of Observations = 13 
 Blind Sample ID = 25DIW-75130  Mean = 517.58 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 31 
 Blind Sample ID = 25DIW-75128  Mean = 65.75 
 % Relative Standard Deviation = 13.5 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75126  Mean = 125.13 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75122  Mean = 271.42 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75120  Mean = 737.89 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 9 
 Blind Sample ID = 2598/7502  Mean = 1613.00 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 10 
 Blind Sample ID = 2598/7500  Mean = 335.43 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 7 
 Blind Sample ID = 2596/7598  Mean = 235.30 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 10 
 Blind Sample ID = 2596/7514  Mean = 356.06 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 16 
 Blind Sample ID = 2594/75M6  Mean = 545.00 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 10 
 Blind Sample ID = 2594/7596  Mean = 1781.25 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 8 
 Blind Sample ID = 2594/7500  Mean = 82.75 
 % Relative Standard Deviation = 8.6 
 Number of Observations = 40 
 Blind Sample ID = 25152-75150  Mean = 345.54 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 61 
 Blind Sample ID = 25150-75004  Mean = 476.06 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 18 
 Blind Sample ID = 25146-75144  Mean = 621.88 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 33 
 Blind Sample ID = 25146-75142  Mean = 177.94 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 16 
 Blind Sample ID = 25146-75138  Mean = 324.52 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 25 
 Blind Sample ID = 25144-75146  Mean = 701.58 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 26 
 Blind Sample ID = 25144-75142  Mean = 213.72 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 32 
 Blind Sample ID = 25140-75138  Mean = 341.15 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 20 
 Blind Sample ID = 2514/7596  Mean = 332.08 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 25 
 Blind Sample ID = 25138-75140  Mean = 523.56 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 27 
 Blind Sample ID = 25134-75136  Mean = 219.33 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 24 
 Blind Sample ID = 25132-75130  Mean = 572.17 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 6 
 Blind Sample ID = 25130-75128  Mean = 561.20 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 5 
 Blind Sample ID = 25122-75128  Mean = 209.71 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 7 
 Blind Sample ID = 25120-75122  Mean = 336.83 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 12 
 Blind Sample ID = 2512/7596  Mean = 600.08 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 13 
 Blind Sample ID = 2510/7504  Mean = 741.29 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 7 
 Blind Sample ID = 2508/7504  Mean = 502.90 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 10 
 Blind Sample ID = 2506/7510  Mean = 933.60 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 5 
 Blind Sample ID = 2506/7508  Mean = 624.50 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 6 
 Blind Sample ID = 2504/7510  Mean = 795.82 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 11 
 Blind Sample ID = 2504/7502  Mean = 651.24 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 17 
 Blind Sample ID = 2502/7504  Mean = 155.00 
 % Relative Standard Deviation = 6.4 
 Number of Observations = 39 
 Blind Sample ID = 25004-75152  Mean = 731.94 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 16 
 Blind Sample ID = 2500/7598  Mean = 632.44 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 9 
 Blind Sample ID = 2500/7514  Mean = 619.23 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 13 
 Blind Sample ID = 2500/7512  Mean = 149.00 
 % Relative Standard Deviation = 61.6 
 Number of Observations = 11 
 Blind Sample ID =
The SGPlot Procedure



- Specific Cond, LAB, UNF -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 90095, MCode: WHT03
Dates: 10/01/86 through 05/08/01
Open Data Set

 Mean = 274.63 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 51 
 Blind Sample ID = STM6  Mean = 520.00 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 20 
 Blind Sample ID = ST98  Mean = 645.76 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 17 
 Blind Sample ID = ST96  Mean = 1340.61 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 56 
 Blind Sample ID = ST94  Mean = 147.00 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 28 
 Blind Sample ID = ST82  Mean = 2478.89 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 18 
 Blind Sample ID = ST00  Mean = 5.16 
 % Relative Standard Deviation = 31.0 
 Number of Observations = 32 
 Blind Sample ID = P8  Mean = 4.50 
 % Relative Standard Deviation = 16.4 
 Number of Observations = 8 
 Blind Sample ID = P5  Mean = 40.67 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 3 
 Blind Sample ID = P3  Mean = 10.92 
 % Relative Standard Deviation = 9.5 
 Number of Observations = 13 
 Blind Sample ID = P12  Mean = 29.04 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 34 
 Blind Sample ID = P11  Mean = 90.95 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 4 
 Blind Sample ID = 75DIW-25130  Mean = 100.77 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 13 
 Blind Sample ID = 67DW-33122  Mean = 111.82 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 11 
 Blind Sample ID = 67DW-33114  Mean = 176.21 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 24 
 Blind Sample ID = 67DIW-33132  Mean = 120.08 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 100.54 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 13 
 Blind Sample ID = 67DIW-33122  Mean = 143.20 
 % Relative Standard Deviation = 12.1 
 Number of Observations = 10 
 Blind Sample ID = 50M6/50DW  Mean = 275.67 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5098  Mean = 361.33 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5096  Mean = 158.92 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 12 
 Blind Sample ID = 50DW/5012  Mean = 1109.44 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 18 
 Blind Sample ID = 50DW/5008  Mean = 493.43 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5004  Mean = 1367.50 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5000  Mean = 177.17 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 6 
 Blind Sample ID = 50DIW-50130  Mean = 271.83 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 6 
 Blind Sample ID = 5098/50DW  Mean = 722.67 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 6 
 Blind Sample ID = 5098/5004  Mean = 848.00 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 4 
 Blind Sample ID = 5094/50M6  Mean = 775.57 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 14 
 Blind Sample ID = 5094/50M4  Mean = 810.86 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 7 
 Blind Sample ID = 5094/5082  Mean = 319.57 
 % Relative Standard Deviation = 0.2 
 Number of Observations = 7 
 Blind Sample ID = 5014/5012  Mean = 764.40 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 10 
 Blind Sample ID = 50134-50136  Mean = 545.67 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 3 
 Blind Sample ID = 50132-50134  Mean = 627.75 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 4 
 Blind Sample ID = 50130-50136  Mean = 1666.15 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 13 
 Blind Sample ID = 5010/5008  Mean = 1033.13 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 16 
 Blind Sample ID = 5010/5004  Mean = 548.42 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 12 
 Blind Sample ID = 5006/5004  Mean = 490.00 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 24 
 Blind Sample ID = 5004/50DW  Mean = 1068.57 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 7 
 Blind Sample ID = 5002/5004  Mean = 1533.33 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 12 
 Blind Sample ID = 5000/5098  Mean = 1626.67 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 6 
 Blind Sample ID = 5000/5096  Mean = 1870.00 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 6 
 Blind Sample ID = 5000/5002  Mean = 101.48 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 36 
 Blind Sample ID = 33M6/67DW  Mean = 348.64 
 % Relative Standard Deviation = 11.1 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6798  Mean = 221.62 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 13 
 Blind Sample ID = 33DW/6714  Mean = 209.50 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 4 
 Blind Sample ID = 33DW/6712  Mean = 791.33 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 21 
 Blind Sample ID = 33DW/6710  Mean = 1470.00 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 22 
 Blind Sample ID = 33DW/6708  Mean = 92.45 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 11 
 Blind Sample ID = 33DW/6706  Mean = 638.00 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 8 
 Blind Sample ID = 33DW/6704  Mean = 864.55 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6702  Mean = 1730.00 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 20 
 Blind Sample ID = 33DW/6700  Mean = 102.00 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 3 
 Blind Sample ID = 33DW-67126  Mean = 422.52 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67134  Mean = 340.41 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67132  Mean = 232.83 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67130  Mean = 5672.50 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 4 
 Blind Sample ID = 33DIW-67127  Mean = 101.78 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 18 
 Blind Sample ID = 33DIW-67126  Mean = 196.94 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 16 
 Blind Sample ID = 33DIW-67122  Mean = 188.04 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 49 
 Blind Sample ID = 3398/67DW  Mean = 235.77 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 22 
 Blind Sample ID = 3396/67DW  Mean = 520.35 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 23 
 Blind Sample ID = 3394/67DW  Mean = 106.83 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 12 
 Blind Sample ID = 3312/67DW  Mean = 757.08 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 12 
 Blind Sample ID = 3308/67DW  Mean = 47.89 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 36 
 Blind Sample ID = 3306/67DW  Mean = 338.73 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 15 
 Blind Sample ID = 3304/67DW  Mean = 948.36 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 22 
 Blind Sample ID = 3300/67DW  Mean = 1063.92 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 13 
 Blind Sample ID = 25M4/7594  Mean = 400.71 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 21 
 Blind Sample ID = 25DW/7598  Mean = 494.18 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 11 
 Blind Sample ID = 25DW/7596  Mean = 973.17 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7594  Mean = 108.83 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 6 
 Blind Sample ID = 25DW/7582  Mean = 246.60 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 10 
 Blind Sample ID = 25DW/7514  Mean = 235.45 
 % Relative Standard Deviation = 0.2 
 Number of Observations = 20 
 Blind Sample ID = 25DW/7512  Mean = 876.33 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7510  Mean = 1646.50 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 20 
 Blind Sample ID = 25DW/7508  Mean = 706.07 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 44 
 Blind Sample ID = 25DW/7504  Mean = 957.17 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7502  Mean = 1944.00 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7500  Mean = 114.00 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 13 
 Blind Sample ID = 25DW-75126  Mean = 220.36 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 11 
 Blind Sample ID = 25DW-75122  Mean = 235.53 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 17 
 Blind Sample ID = 25DW-75112  Mean = 103.29 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75106  Mean = 711.00 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 3 
 Blind Sample ID = 25DIW-75136  Mean = 470.87 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75134  Mean = 259.21 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75130  Mean = 114.86 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75126  Mean = 220.00 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 5 
 Blind Sample ID = 25DIW-75122  Mean = 1057.78 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 9 
 Blind Sample ID = 2598/7502  Mean = 2014.55 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 11 
 Blind Sample ID = 2598/7500  Mean = 557.89 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 9 
 Blind Sample ID = 2596/7598  Mean = 569.60 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 20 
 Blind Sample ID = 2594/75M6  Mean = 851.08 
 % Relative Standard Deviation = 0.6 
 Number of Observations = 13 
 Blind Sample ID = 2594/7596  Mean = 2197.00 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 10 
 Blind Sample ID = 2594/7500  Mean = 978.33 
 % Relative Standard Deviation = 0.3 
 Number of Observations = 3 
 Blind Sample ID = 2588/7586  Mean = 116.67 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 3 
 Blind Sample ID = 2582/75M4  Mean = 567.67 
 % Relative Standard Deviation = 0.1 
 Number of Observations = 3 
 Blind Sample ID = 2514/7596  Mean = 848.50 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 4 
 Blind Sample ID = 25134-75136  Mean = 377.36 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 11 
 Blind Sample ID = 25132-75130  Mean = 971.55 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 11 
 Blind Sample ID = 2510/7504  Mean = 1210.00 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 6 
 Blind Sample ID = 2508/7504  Mean = 909.40 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 10 
 Blind Sample ID = 2506/7510  Mean = 1613.33 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 6 
 Blind Sample ID = 2506/7508  Mean = 1100.00 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 7 
 Blind Sample ID = 2504/7510  Mean = 1149.09 
 % Relative Standard Deviation = 0.5 
 Number of Observations = 11 
 Blind Sample ID = 2504/7502  Mean = 994.53 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 17 
 Blind Sample ID = 2502/7504  Mean = 1039.52 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 21 
 Blind Sample ID = 2500/7598  Mean = 281.41 
 % Relative Standard Deviation = 41.3 
 Number of Observations = 22 
 Blind Sample ID =
The SGPlot Procedure



- Specific Cond, LAB, UNF, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 90095, MCode: WHT01
Dates: 10/06/89 through 08/15/00
Open Data Set

 Mean = 60.73 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 4 
 Blind Sample ID = P31  Mean = 18.39 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 8 
 Blind Sample ID = P29  Mean = 37.03 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 4 
 Blind Sample ID = P28  Mean = 26.17 
 % Relative Standard Deviation = 0.7 
 Number of Observations = 4 
 Blind Sample ID = P27  Mean = 36.93 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 4 
 Blind Sample ID = P26  Mean = 20.90 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 4 
 Blind Sample ID = P25  Mean = 12.75 
 % Relative Standard Deviation = 17.7 
 Number of Observations = 12 
 Blind Sample ID = P24  Mean = 13.89 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 14 
 Blind Sample ID = P23  Mean = 41.98 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 22 
 Blind Sample ID = P21  Mean = 7.38 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 15 
 Blind Sample ID = P20  Mean = 12.35 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 15 
 Blind Sample ID = P19  Mean = 11.99 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 23 
 Blind Sample ID = P18  Mean = 6.85 
 % Relative Standard Deviation = 8.6 
 Number of Observations = 35 
 Blind Sample ID = P17  Mean = 42.98 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 55 
 Blind Sample ID = P16  Mean = 12.82 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 29 
 Blind Sample ID = P15  Mean = 35.28 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 43 
 Blind Sample ID = P14  Mean = 2.72 
 % Relative Standard Deviation = 7.2 
 Number of Observations = 36 
 Blind Sample ID = P13  Mean = 10.13 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 16 
 Blind Sample ID = P12  Mean = 27.77 
 % Relative Standard Deviation = 0.4 
 Number of Observations = 3 
 Blind Sample ID = P11  Mean = 11.86 
 % Relative Standard Deviation = 110.7 
 Number of Observations = 14 
 Blind Sample ID =
The SGPlot Procedure



- Sulfate, FIL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00945, MCode: 00073
Dates: 10/01/86 through 02/28/90
Open Data Set

 Mean = 76.27 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 22 
 Blind Sample ID = STM6  Mean = 40.69 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 16 
 Blind Sample ID = ST98  Mean = 141.18 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 17 
 Blind Sample ID = ST96  Mean = 389.62 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 26 
 Blind Sample ID = ST94  Mean = 27.60 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 20 
 Blind Sample ID = ST82  Mean = 1211.11 
 % Relative Standard Deviation = 2.7 
 Number of Observations = 18 
 Blind Sample ID = ST00  Mean = 1.10 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 4 
 Blind Sample ID = P8  Mean = 38.30 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 10 
 Blind Sample ID = 50M6/50DW  Mean = 19.83 
 % Relative Standard Deviation = 11.7 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5098  Mean = 74.50 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 6 
 Blind Sample ID = 50DW/5096  Mean = 15.25 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5082  Mean = 92.25 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 12 
 Blind Sample ID = 50DW/5008  Mean = 612.50 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5000  Mean = 20.86 
 % Relative Standard Deviation = 7.0 
 Number of Observations = 7 
 Blind Sample ID = 5098/50DW  Mean = 135.00 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 4 
 Blind Sample ID = 5098/5004  Mean = 222.50 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 4 
 Blind Sample ID = 5094/50M6  Mean = 202.50 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 12 
 Blind Sample ID = 5094/50M4  Mean = 220.00 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 7 
 Blind Sample ID = 5094/5082  Mean = 148.57 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 7 
 Blind Sample ID = 5010/5004  Mean = 112.94 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 17 
 Blind Sample ID = 5004/50DW  Mean = 630.83 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 12 
 Blind Sample ID = 5000/5098  Mean = 688.33 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 6 
 Blind Sample ID = 5000/5096  Mean = 801.67 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 6 
 Blind Sample ID = 5000/5002  Mean = 24.51 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 35 
 Blind Sample ID = 33M6/67DW  Mean = 126.00 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6708  Mean = 284.21 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 19 
 Blind Sample ID = 33DW/6702  Mean = 800.00 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 13 
 Blind Sample ID = 33DW/6700  Mean = 14.57 
 % Relative Standard Deviation = 7.4 
 Number of Observations = 23 
 Blind Sample ID = 3398/67DW  Mean = 47.36 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 22 
 Blind Sample ID = 3396/67DW  Mean = 130.87 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 23 
 Blind Sample ID = 3394/67DW  Mean = 77.60 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 5 
 Blind Sample ID = 3304/67DW  Mean = 406.67 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 15 
 Blind Sample ID = 3300/67DW  Mean = 291.82 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 11 
 Blind Sample ID = 25M4/7594  Mean = 30.81 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 21 
 Blind Sample ID = 25DW/7598  Mean = 105.55 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 11 
 Blind Sample ID = 25DW/7596  Mean = 295.00 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7594  Mean = 22.50 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 6 
 Blind Sample ID = 25DW/7582  Mean = 169.74 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 38 
 Blind Sample ID = 25DW/7504  Mean = 320.43 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 23 
 Blind Sample ID = 25DW/7502  Mean = 899.60 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7500  Mean = 326.67 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 9 
 Blind Sample ID = 2598/7502  Mean = 923.64 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 11 
 Blind Sample ID = 2598/7500  Mean = 67.33 
 % Relative Standard Deviation = 6.1 
 Number of Observations = 9 
 Blind Sample ID = 2596/7598  Mean = 155.50 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 20 
 Blind Sample ID = 2594/75M6  Mean = 202.31 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 13 
 Blind Sample ID = 2594/7596  Mean = 994.00 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 10 
 Blind Sample ID = 2594/7500  Mean = 306.67 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 3 
 Blind Sample ID = 2588/7586  Mean = 23.33 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 3 
 Blind Sample ID = 2582/75M4  Mean = 185.00 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 4 
 Blind Sample ID = 2510/7504  Mean = 107.50 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 4 
 Blind Sample ID = 2504/7510  Mean = 378.75 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 8 
 Blind Sample ID = 2504/7502  Mean = 275.00 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 14 
 Blind Sample ID = 2502/7504  Mean = 338.10 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 21 
 Blind Sample ID = 2500/7598  Mean = 67.33 
 % Relative Standard Deviation = 29.7 
 Number of Observations = 15 
 Blind Sample ID =
The SGPlot Procedure



- Sulfate, FIL, IC -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00945, MCode: IC022
Dates: 03/01/90 through 09/27/01
Open Data Set

 Mean = 3.12 
 % Relative Standard Deviation = 12.2 
 Number of Observations = 25 
 Blind Sample ID = P31  Mean = 0.45 
 % Relative Standard Deviation = 79.5 
 Number of Observations = 23 
 Blind Sample ID = P30  Mean = 16.24 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25146  Mean = 51.31 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 30 
 Blind Sample ID = 75DIW-25144  Mean = 6.55 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 21 
 Blind Sample ID = 75DIW-25138  Mean = 13.78 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 22 
 Blind Sample ID = 75DIW-25130  Mean = 3.31 
 % Relative Standard Deviation = 6.3 
 Number of Observations = 16 
 Blind Sample ID = 67DW-33122  Mean = 51.46 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 63 
 Blind Sample ID = 67DW-33120  Mean = 43.07 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33118  Mean = 6.26 
 % Relative Standard Deviation = 6.7 
 Number of Observations = 32 
 Blind Sample ID = 67DW-33114  Mean = 77.40 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 15 
 Blind Sample ID = 67DW-33104  Mean = 18.46 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 24 
 Blind Sample ID = 67DIW-33132  Mean = 18.42 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 12 
 Blind Sample ID = 67DIW-33130  Mean = 2.94 
 % Relative Standard Deviation = 11.4 
 Number of Observations = 16 
 Blind Sample ID = 67DIW-33122  Mean = 49.20 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 20 
 Blind Sample ID = 67DIW-33120  Mean = 69.21 
 % Relative Standard Deviation = 10.8 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5096  Mean = 11.93 
 % Relative Standard Deviation = 10.1 
 Number of Observations = 14 
 Blind Sample ID = 50DW/5012  Mean = 89.00 
 % Relative Standard Deviation = 14.1 
 Number of Observations = 4 
 Blind Sample ID = 50DW/5008  Mean = 106.67 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 9 
 Blind Sample ID = 50DW/5004  Mean = 309.17 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 24 
 Blind Sample ID = 50DW-50124  Mean = 5.18 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50122  Mean = 64.00 
 % Relative Standard Deviation = 1.3 
 Number of Observations = 12 
 Blind Sample ID = 50DW-50118  Mean = 12.42 
 % Relative Standard Deviation = 12.2 
 Number of Observations = 52 
 Blind Sample ID = 50DW-50112  Mean = 116.15 
 % Relative Standard Deviation = 7.5 
 Number of Observations = 13 
 Blind Sample ID = 50DW-50104  Mean = 13.08 
 % Relative Standard Deviation = 3.8 
 Number of Observations = 49 
 Blind Sample ID = 50DIW-50138  Mean = 74.81 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 52 
 Blind Sample ID = 50DIW-50136  Mean = 28.21 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 30 
 Blind Sample ID = 50DIW-50130  Mean = 100.68 
 % Relative Standard Deviation = 2.9 
 Number of Observations = 37 
 Blind Sample ID = 50DIW-50128  Mean = 71.54 
 % Relative Standard Deviation = 8.4 
 Number of Observations = 13 
 Blind Sample ID = 5096/50DW  Mean = 1.77 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 40 
 Blind Sample ID = 50152-50DIW  Mean = 218.60 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 34 
 Blind Sample ID = 50142-50144  Mean = 178.80 
 % Relative Standard Deviation = 1.0 
 Number of Observations = 18 
 Blind Sample ID = 50140-50144  Mean = 75.75 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 16 
 Blind Sample ID = 5014/5096  Mean = 21.00 
 % Relative Standard Deviation = 12.8 
 Number of Observations = 9 
 Blind Sample ID = 5014/5012  Mean = 87.36 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 48 
 Blind Sample ID = 50138-50140  Mean = 88.92 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 30 
 Blind Sample ID = 50136-50138  Mean = 112.63 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 18 
 Blind Sample ID = 50134-50140  Mean = 113.72 
 % Relative Standard Deviation = 3.2 
 Number of Observations = 68 
 Blind Sample ID = 50134-50136  Mean = 68.57 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 18 
 Blind Sample ID = 50132-50134  Mean = 105.39 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 30 
 Blind Sample ID = 50130-50136  Mean = 58.77 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 24 
 Blind Sample ID = 50130-50132  Mean = 101.33 
 % Relative Standard Deviation = 6.5 
 Number of Observations = 12 
 Blind Sample ID = 50126-50128  Mean = 313.33 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 12 
 Blind Sample ID = 50126-50124  Mean = 8.66 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 12 
 Blind Sample ID = 50126-50122  Mean = 387.50 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 12 
 Blind Sample ID = 50120-50124  Mean = 91.50 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 12 
 Blind Sample ID = 50120-50112  Mean = 23.70 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 10 
 Blind Sample ID = 50114-50112  Mean = 97.82 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 11 
 Blind Sample ID = 50110-50118  Mean = 45.33 
 % Relative Standard Deviation = 2.2 
 Number of Observations = 12 
 Blind Sample ID = 50110-50112  Mean = 27.43 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 14 
 Blind Sample ID = 50106-50112  Mean = 136.67 
 % Relative Standard Deviation = 6.0 
 Number of Observations = 6 
 Blind Sample ID = 50106-50104  Mean = 123.33 
 % Relative Standard Deviation = 4.2 
 Number of Observations = 6 
 Blind Sample ID = 5010/5008  Mean = 151.43 
 % Relative Standard Deviation = 5.9 
 Number of Observations = 7 
 Blind Sample ID = 5010/5004  Mean = 123.33 
 % Relative Standard Deviation = 9.9 
 Number of Observations = 9 
 Blind Sample ID = 5006/5004  Mean = 113.33 
 % Relative Standard Deviation = 4.6 
 Number of Observations = 6 
 Blind Sample ID = 5004/50DW  Mean = 40.26 
 % Relative Standard Deviation = 2.1 
 Number of Observations = 16 
 Blind Sample ID = 50004-50DIW  Mean = 675.83 
 % Relative Standard Deviation = 8.9 
 Number of Observations = 12 
 Blind Sample ID = 5000/5096  Mean = 13.19 
 % Relative Standard Deviation = 12.4 
 Number of Observations = 21 
 Blind Sample ID = 33DW/6714  Mean = 17.13 
 % Relative Standard Deviation = 11.2 
 Number of Observations = 15 
 Blind Sample ID = 33DW/6712  Mean = 43.80 
 % Relative Standard Deviation = 9.6 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6710  Mean = 121.67 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 12 
 Blind Sample ID = 33DW/6708  Mean = 18.80 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6706  Mean = 830.00 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 4 
 Blind Sample ID = 33DW/6700  Mean = 4.07 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 23 
 Blind Sample ID = 33DW-67126  Mean = 6.48 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67122  Mean = 103.96 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 53 
 Blind Sample ID = 33DW-67120  Mean = 86.19 
 % Relative Standard Deviation = 2.8 
 Number of Observations = 26 
 Blind Sample ID = 33DW-67118  Mean = 12.75 
 % Relative Standard Deviation = 10.1 
 Number of Observations = 24 
 Blind Sample ID = 33DW-67114  Mean = 45.00 
 % Relative Standard Deviation = 3.6 
 Number of Observations = 27 
 Blind Sample ID = 33DW-67110  Mean = 19.86 
 % Relative Standard Deviation = 7.2 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67106  Mean = 153.21 
 % Relative Standard Deviation = 5.0 
 Number of Observations = 28 
 Blind Sample ID = 33DW-67104  Mean = 50.52 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67134  Mean = 38.41 
 % Relative Standard Deviation = 4.4 
 Number of Observations = 22 
 Blind Sample ID = 33DIW-67132  Mean = 37.09 
 % Relative Standard Deviation = 3.1 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67130  Mean = 3.44 
 % Relative Standard Deviation = 11.6 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67126  Mean = 5.99 
 % Relative Standard Deviation = 8.3 
 Number of Observations = 23 
 Blind Sample ID = 33DIW-67122  Mean = 100.08 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 24 
 Blind Sample ID = 33DIW-67120  Mean = 8.18 
 % Relative Standard Deviation = 8.5 
 Number of Observations = 13 
 Blind Sample ID = 3312/67DW  Mean = 60.45 
 % Relative Standard Deviation = 4.8 
 Number of Observations = 11 
 Blind Sample ID = 3308/67DW  Mean = 9.26 
 % Relative Standard Deviation = 3.7 
 Number of Observations = 17 
 Blind Sample ID = 3306/67DW  Mean = 401.00 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 10 
 Blind Sample ID = 3300/67DW  Mean = 108.71 
 % Relative Standard Deviation = 8.5 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7596  Mean = 14.57 
 % Relative Standard Deviation = 11.6 
 Number of Observations = 14 
 Blind Sample ID = 25DW/7514  Mean = 19.20 
 % Relative Standard Deviation = 12.7 
 Number of Observations = 25 
 Blind Sample ID = 25DW/7512  Mean = 46.58 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 12 
 Blind Sample ID = 25DW/7510  Mean = 136.25 
 % Relative Standard Deviation = 9.6 
 Number of Observations = 8 
 Blind Sample ID = 25DW/7508  Mean = 168.57 
 % Relative Standard Deviation = 8.7 
 Number of Observations = 7 
 Blind Sample ID = 25DW/7504  Mean = 4.51 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 14 
 Blind Sample ID = 25DW-75126  Mean = 468.00 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75124  Mean = 7.36 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75122  Mean = 96.69 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75118  Mean = 19.77 
 % Relative Standard Deviation = 8.5 
 Number of Observations = 30 
 Blind Sample ID = 25DW-75112  Mean = 50.81 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75110  Mean = 22.07 
 % Relative Standard Deviation = 8.3 
 Number of Observations = 15 
 Blind Sample ID = 25DW-75106  Mean = 174.38 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 16 
 Blind Sample ID = 25DW-75104  Mean = 3.72 
 % Relative Standard Deviation = 4.5 
 Number of Observations = 41 
 Blind Sample ID = 25DIW-75150  Mean = 155.84 
 % Relative Standard Deviation = 1.1 
 Number of Observations = 59 
 Blind Sample ID = 25DIW-75144  Mean = 171.30 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 24 
 Blind Sample ID = 25DIW-75142  Mean = 19.85 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 27 
 Blind Sample ID = 25DIW-75138  Mean = 112.60 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 52 
 Blind Sample ID = 25DIW-75136  Mean = 57.80 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 15 
 Blind Sample ID = 25DIW-75134  Mean = 43.75 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75132  Mean = 42.00 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 14 
 Blind Sample ID = 25DIW-75130  Mean = 151.88 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 32 
 Blind Sample ID = 25DIW-75128  Mean = 4.06 
 % Relative Standard Deviation = 13.5 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75126  Mean = 6.89 
 % Relative Standard Deviation = 6.6 
 Number of Observations = 16 
 Blind Sample ID = 25DIW-75122  Mean = 111.67 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 12 
 Blind Sample ID = 25DIW-75120  Mean = 52.10 
 % Relative Standard Deviation = 7.5 
 Number of Observations = 10 
 Blind Sample ID = 2596/7514  Mean = 4.72 
 % Relative Standard Deviation = 4.9 
 Number of Observations = 40 
 Blind Sample ID = 25152-75150  Mean = 62.73 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 62 
 Blind Sample ID = 25150-75004  Mean = 173.28 
 % Relative Standard Deviation = 0.8 
 Number of Observations = 18 
 Blind Sample ID = 25146-75144  Mean = 188.91 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 33 
 Blind Sample ID = 25146-75142  Mean = 37.42 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 16 
 Blind Sample ID = 25146-75138  Mean = 103.70 
 % Relative Standard Deviation = 0.9 
 Number of Observations = 26 
 Blind Sample ID = 25144-75146  Mean = 224.53 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 28 
 Blind Sample ID = 25144-75142  Mean = 57.36 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 32 
 Blind Sample ID = 25140-75138  Mean = 108.30 
 % Relative Standard Deviation = 7.6 
 Number of Observations = 20 
 Blind Sample ID = 2514/7596  Mean = 117.43 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 25 
 Blind Sample ID = 25138-75140  Mean = 131.29 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 28 
 Blind Sample ID = 25134-75136  Mean = 57.69 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 24 
 Blind Sample ID = 25132-75130  Mean = 156.00 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 5 
 Blind Sample ID = 25122-75128  Mean = 44.88 
 % Relative Standard Deviation = 2.5 
 Number of Observations = 8 
 Blind Sample ID = 25120-75122  Mean = 112.50 
 % Relative Standard Deviation = 5.5 
 Number of Observations = 12 
 Blind Sample ID = 2512/7596  Mean = 176.67 
 % Relative Standard Deviation = 5.7 
 Number of Observations = 9 
 Blind Sample ID = 2510/7504  Mean = 208.57 
 % Relative Standard Deviation = 4.3 
 Number of Observations = 7 
 Blind Sample ID = 2508/7504  Mean = 57.25 
 % Relative Standard Deviation = 3.3 
 Number of Observations = 4 
 Blind Sample ID = 2506/7510  Mean = 147.50 
 % Relative Standard Deviation = 3.4 
 Number of Observations = 4 
 Blind Sample ID = 2506/7508  Mean = 21.46 
 % Relative Standard Deviation = 2.3 
 Number of Observations = 39 
 Blind Sample ID = 25004-75152  Mean = 305.56 
 % Relative Standard Deviation = 4.0 
 Number of Observations = 9 
 Blind Sample ID = 2500/7514  Mean = 317.69 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 13 
 Blind Sample ID = 2500/7512  Mean = 14.75 
 % Relative Standard Deviation = 30.0 
 Number of Observations = 4 
 Blind Sample ID =
The SGPlot Procedure



- Sulfate, FIL, IC, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00945, MCode: IC024
Dates: 10/09/86 through 09/28/01
Open Data Set

 Mean = 0.34 
 % Relative Standard Deviation = 4.1 
 Number of Observations = 29 
 Blind Sample ID = P8  Mean = 0.37 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 8 
 Blind Sample ID = P5  Mean = 1.43 
 % Relative Standard Deviation = 4.7 
 Number of Observations = 7 
 Blind Sample ID = P33  Mean = 1.86 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 7 
 Blind Sample ID = P32  Mean = 3.65 
 % Relative Standard Deviation = 1.5 
 Number of Observations = 10 
 Blind Sample ID = P31  Mean = 0.40 
 % Relative Standard Deviation = 5.3 
 Number of Observations = 3 
 Blind Sample ID = P30  Mean = 3.93 
 % Relative Standard Deviation = 3.9 
 Number of Observations = 3 
 Blind Sample ID = P3  Mean = 1.15 
 % Relative Standard Deviation = 1.4 
 Number of Observations = 8 
 Blind Sample ID = P29  Mean = 6.57 
 % Relative Standard Deviation = 1.2 
 Number of Observations = 4 
 Blind Sample ID = P28  Mean = 2.59 
 % Relative Standard Deviation = 1.8 
 Number of Observations = 4 
 Blind Sample ID = P27  Mean = 2.57 
 % Relative Standard Deviation = 9.8 
 Number of Observations = 4 
 Blind Sample ID = P25  Mean = 0.31 
 % Relative Standard Deviation = 12.0 
 Number of Observations = 12 
 Blind Sample ID = P24  Mean = 1.29 
 % Relative Standard Deviation = 3.5 
 Number of Observations = 14 
 Blind Sample ID = P23  Mean = 0.40 
 % Relative Standard Deviation = 7.3 
 Number of Observations = 24 
 Blind Sample ID = P21  Mean = 0.84 
 % Relative Standard Deviation = 6.9 
 Number of Observations = 16 
 Blind Sample ID = P20  Mean = 0.33 
 % Relative Standard Deviation = 14.7 
 Number of Observations = 15 
 Blind Sample ID = P19  Mean = 1.60 
 % Relative Standard Deviation = 3.0 
 Number of Observations = 22 
 Blind Sample ID = P18  Mean = 0.50 
 % Relative Standard Deviation = 6.2 
 Number of Observations = 36 
 Blind Sample ID = P17  Mean = 0.74 
 % Relative Standard Deviation = 5.1 
 Number of Observations = 52 
 Blind Sample ID = P16  Mean = 1.04 
 % Relative Standard Deviation = 11.1 
 Number of Observations = 32 
 Blind Sample ID = P15  Mean = 3.13 
 % Relative Standard Deviation = 14.9 
 Number of Observations = 42 
 Blind Sample ID = P14  Mean = 0.16 
 % Relative Standard Deviation = 10.1 
 Number of Observations = 35 
 Blind Sample ID = P13  Mean = 0.66 
 % Relative Standard Deviation = 39.6 
 Number of Observations = 27 
 Blind Sample ID = P12  Mean = 0.82 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 49 
 Blind Sample ID = P11  Mean = 0.94 
 % Relative Standard Deviation = 127.3 
 Number of Observations = 14 
 Blind Sample ID =
The SGPlot Procedure



- Sulfate, FIL, TURB -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00945, MCode: 00074
Dates: 04/21/89 through 02/26/90
Open Data Set

 Mean = 317.50 
 % Relative Standard Deviation = 7.9 
 Number of Observations = 4 
 Blind Sample ID = 5002/5004  Mean = 27.22 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 9 
 Blind Sample ID = 33DW/6798  Mean = 42.50 
 % Relative Standard Deviation = 1.7 
 Number of Observations = 10 
 Blind Sample ID = 33DW/6710  Mean = 781.43 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 7 
 Blind Sample ID = 33DW/6700  Mean = 13.60 
 % Relative Standard Deviation = 5.2 
 Number of Observations = 25 
 Blind Sample ID = 3398/67DW  Mean = 59.75 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 4 
 Blind Sample ID = 3308/67DW  Mean = 9.44 
 % Relative Standard Deviation = 5.4 
 Number of Observations = 18 
 Blind Sample ID = 3306/67DW  Mean = 72.60 
 % Relative Standard Deviation = 1.6 
 Number of Observations = 10 
 Blind Sample ID = 3304/67DW  Mean = 402.86 
 % Relative Standard Deviation = 1.9 
 Number of Observations = 7 
 Blind Sample ID = 3300/67DW  Mean = 48.67 
 % Relative Standard Deviation = 2.4 
 Number of Observations = 3 
 Blind Sample ID = 25DW/7510  Mean = 380.00 
 % Relative Standard Deviation = 2.6 
 Number of Observations = 3 
 Blind Sample ID = 2504/7502  Mean = 283.33 
 % Relative Standard Deviation = 2.0 
 Number of Observations = 3 
 Blind Sample ID = 2502/7504  Mean = 22.00 
 % Relative Standard Deviation = 21.3 
 Number of Observations = 4 
 Blind Sample ID =
The SGPlot Procedure