- Ammonia (NH3 + NH4+; as N), FIL, COL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00608, MCode: CL037
Dates: 10/12/04 through 06/13/06
Open Data Set

Mean = 1.39 % Relative Standard Deviation = 1.9 Number of Observations = 7 Blind Sample ID = NS16 Mean = 0.41 % Relative Standard Deviation = 3.4 Number of Observations = 45 Blind Sample ID = NS14 Mean = 0.74 % Relative Standard Deviation = 2.0 Number of Observations = 19 Blind Sample ID = NS12 Mean = 0.42 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = N90 Mean = 0.26 % Relative Standard Deviation = 7.5 Number of Observations = 8 Blind Sample ID = N89 Mean = 1.19 % Relative Standard Deviation = 4.2 Number of Observations = 16 Blind Sample ID = N88 Mean = 0.26 % Relative Standard Deviation = 2.8 Number of Observations = 24 Blind Sample ID = N87 Mean = 0.15 % Relative Standard Deviation = 2.3 Number of Observations = 23 Blind Sample ID = N85 Mean = 1.00 % Relative Standard Deviation = 1.3 Number of Observations = 23 Blind Sample ID = N84 Mean = 0.21 % Relative Standard Deviation = 5.0 Number of Observations = 20 Blind Sample ID = N83
The SGPlot Procedure


- Ammonia (NH3 + NH4+; as N), FIL, COL, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00608, MCode: CL039
Dates: 10/06/04 through 06/02/06
Open Data Set

Mean = 0.04 % Relative Standard Deviation = 6.0 Number of Observations = 12 Blind Sample ID = N90X Mean = 0.28 % Relative Standard Deviation = 1.6 Number of Observations = 12 Blind Sample ID = N89 Mean = 0.12 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = N88X Mean = 0.26 % Relative Standard Deviation = 6.9 Number of Observations = 36 Blind Sample ID = N87 Mean = 0.15 % Relative Standard Deviation = 5.6 Number of Observations = 46 Blind Sample ID = N85 Mean = 0.10 % Relative Standard Deviation = 2.0 Number of Observations = 21 Blind Sample ID = N84X Mean = 0.22 % Relative Standard Deviation = 3.1 Number of Observations = 40 Blind Sample ID = N83
The SGPlot Procedure


- Ammonia (NH3 + NH4+; as N), FIL, DA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00608, MCode: SHC02
Dates: 06/13/06 through 06/10/24
Open Data Set

Mean = 2.85 % Relative Standard Deviation = 2.3 Number of Observations = 95 Blind Sample ID = NS30 Mean = 1.46 % Relative Standard Deviation = 2.9 Number of Observations = 89 Blind Sample ID = NS28 Mean = 1.30 % Relative Standard Deviation = 2.7 Number of Observations = 88 Blind Sample ID = NS26 Mean = 2.82 % Relative Standard Deviation = 2.6 Number of Observations = 94 Blind Sample ID = NS24 Mean = 0.47 % Relative Standard Deviation = 3.6 Number of Observations = 75 Blind Sample ID = NS22 Mean = 0.34 % Relative Standard Deviation = 2.7 Number of Observations = 95 Blind Sample ID = NS20 Mean = 1.12 % Relative Standard Deviation = 2.9 Number of Observations = 91 Blind Sample ID = NS18 Mean = 0.70 % Relative Standard Deviation = 1.3 Number of Observations = 4 Blind Sample ID = NS16X2 Mean = 1.40 % Relative Standard Deviation = 3.0 Number of Observations = 70 Blind Sample ID = NS16 Mean = 0.09 % Relative Standard Deviation = 6.4 Number of Observations = 22 Blind Sample ID = N99 Mean = 0.61 % Relative Standard Deviation = 2.8 Number of Observations = 23 Blind Sample ID = N98 Mean = 0.24 % Relative Standard Deviation = 2.5 Number of Observations = 8 Blind Sample ID = N97 Mean = 0.65 % Relative Standard Deviation = 3.0 Number of Observations = 22 Blind Sample ID = N96 Mean = 0.18 % Relative Standard Deviation = 3.8 Number of Observations = 19 Blind Sample ID = N95 Mean = 0.66 % Relative Standard Deviation = 1.9 Number of Observations = 23 Blind Sample ID = N94 Mean = 0.97 % Relative Standard Deviation = 3.1 Number of Observations = 11 Blind Sample ID = N92 Mean = 0.07 % Relative Standard Deviation = 6.3 Number of Observations = 23 Blind Sample ID = N91 Mean = 0.04 % Relative Standard Deviation = 9.4 Number of Observations = 24 Blind Sample ID = N90X Mean = 0.44 % Relative Standard Deviation = 2.4 Number of Observations = 16 Blind Sample ID = N90 Mean = 0.27 % Relative Standard Deviation = 2.3 Number of Observations = 40 Blind Sample ID = N89 Mean = 0.61 % Relative Standard Deviation = 6.4 Number of Observations = 8 Blind Sample ID = N162 Mean = 0.09 % Relative Standard Deviation = 5.6 Number of Observations = 23 Blind Sample ID = N159 Mean = 0.18 % Relative Standard Deviation = 3.9 Number of Observations = 24 Blind Sample ID = N158 Mean = 0.07 % Relative Standard Deviation = 5.7 Number of Observations = 23 Blind Sample ID = N157 Mean = 0.13 % Relative Standard Deviation = 29.0 Number of Observations = 24 Blind Sample ID = N156 Mean = 0.09 % Relative Standard Deviation = 7.6 Number of Observations = 24 Blind Sample ID = N155 Mean = 0.07 % Relative Standard Deviation = 6.8 Number of Observations = 22 Blind Sample ID = N153 Mean = 0.22 % Relative Standard Deviation = 4.5 Number of Observations = 11 Blind Sample ID = N152 Mean = 0.07 % Relative Standard Deviation = 9.2 Number of Observations = 12 Blind Sample ID = N151 Mean = 0.28 % Relative Standard Deviation = 3.9 Number of Observations = 12 Blind Sample ID = N150 Mean = 0.15 % Relative Standard Deviation = 3.2 Number of Observations = 12 Blind Sample ID = N149 Mean = 0.22 % Relative Standard Deviation = 1.7 Number of Observations = 12 Blind Sample ID = N148 Mean = 0.13 % Relative Standard Deviation = 9.6 Number of Observations = 12 Blind Sample ID = N147 Mean = 0.32 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = N146 Mean = 0.10 % Relative Standard Deviation = 6.3 Number of Observations = 10 Blind Sample ID = N145 Mean = 0.30 % Relative Standard Deviation = 4.8 Number of Observations = 12 Blind Sample ID = N144 Mean = 0.16 % Relative Standard Deviation = 4.1 Number of Observations = 12 Blind Sample ID = N143 Mean = 0.47 % Relative Standard Deviation = 4.7 Number of Observations = 12 Blind Sample ID = N142 Mean = 0.14 % Relative Standard Deviation = 3.9 Number of Observations = 12 Blind Sample ID = N141 Mean = 0.41 % Relative Standard Deviation = 4.1 Number of Observations = 9 Blind Sample ID = N140 Mean = 0.08 % Relative Standard Deviation = 3.2 Number of Observations = 8 Blind Sample ID = N139 Mean = 0.43 % Relative Standard Deviation = 3.1 Number of Observations = 12 Blind Sample ID = N138 Mean = 0.12 % Relative Standard Deviation = 4.0 Number of Observations = 12 Blind Sample ID = N137 Mean = 0.35 % Relative Standard Deviation = 3.5 Number of Observations = 5 Blind Sample ID = N136 Mean = 0.16 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = N135 Mean = 0.11 % Relative Standard Deviation = 2.2 Number of Observations = 12 Blind Sample ID = N134 Mean = 0.09 % Relative Standard Deviation = 3.0 Number of Observations = 12 Blind Sample ID = N133 Mean = 0.27 % Relative Standard Deviation = 2.3 Number of Observations = 11 Blind Sample ID = N132 Mean = 0.10 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = N131 Mean = 0.46 % Relative Standard Deviation = 2.8 Number of Observations = 12 Blind Sample ID = N130 Mean = 0.18 % Relative Standard Deviation = 2.1 Number of Observations = 12 Blind Sample ID = N129 Mean = 0.45 % Relative Standard Deviation = 1.7 Number of Observations = 12 Blind Sample ID = N128 Mean = 0.11 % Relative Standard Deviation = 3.3 Number of Observations = 11 Blind Sample ID = N127 Mean = 0.33 % Relative Standard Deviation = 2.5 Number of Observations = 12 Blind Sample ID = N126 Mean = 0.13 % Relative Standard Deviation = 3.1 Number of Observations = 12 Blind Sample ID = N125 Mean = 0.16 % Relative Standard Deviation = 3.3 Number of Observations = 12 Blind Sample ID = N124 Mean = 0.28 % Relative Standard Deviation = 3.1 Number of Observations = 12 Blind Sample ID = N123 Mean = 0.09 % Relative Standard Deviation = 5.7 Number of Observations = 12 Blind Sample ID = N121 Mean = 0.49 % Relative Standard Deviation = 2.5 Number of Observations = 10 Blind Sample ID = N120 Mean = 0.23 % Relative Standard Deviation = 4.1 Number of Observations = 11 Blind Sample ID = N119 Mean = 0.79 % Relative Standard Deviation = 2.7 Number of Observations = 12 Blind Sample ID = N118 Mean = 0.39 % Relative Standard Deviation = 4.4 Number of Observations = 12 Blind Sample ID = N117 Mean = 0.39 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = N116 Mean = 0.23 % Relative Standard Deviation = 2.9 Number of Observations = 24 Blind Sample ID = N115 Mean = 0.91 % Relative Standard Deviation = 3.4 Number of Observations = 24 Blind Sample ID = N114 Mean = 0.21 % Relative Standard Deviation = 3.6 Number of Observations = 24 Blind Sample ID = N113 Mean = 0.81 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = N112 Mean = 0.28 % Relative Standard Deviation = 3.3 Number of Observations = 24 Blind Sample ID = N111 Mean = 0.69 % Relative Standard Deviation = 3.6 Number of Observations = 18 Blind Sample ID = N110 Mean = 0.19 % Relative Standard Deviation = 2.6 Number of Observations = 24 Blind Sample ID = N109 Mean = 0.48 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N108 Mean = 0.20 % Relative Standard Deviation = 3.0 Number of Observations = 24 Blind Sample ID = N107 Mean = 1.08 % Relative Standard Deviation = 5.4 Number of Observations = 24 Blind Sample ID = N106 Mean = 0.27 % Relative Standard Deviation = 2.9 Number of Observations = 24 Blind Sample ID = N105 Mean = 0.71 % Relative Standard Deviation = 2.2 Number of Observations = 23 Blind Sample ID = N104 Mean = 0.32 % Relative Standard Deviation = 3.0 Number of Observations = 24 Blind Sample ID = N103 Mean = 0.78 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = N102 Mean = 0.36 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N101 Mean = 0.77 % Relative Standard Deviation = 2.1 Number of Observations = 22 Blind Sample ID = N100 Mean = 0.20 % Relative Standard Deviation = 83.8 Number of Observations = 19 Blind Sample ID =
The SGPlot Procedure


- Ammonia (NH3 + NH4+; as N), UNF, CFA, Acidified -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00610, MCode: CL017
Dates: 10/08/04 through 07/09/24
Open Data Set

Mean = 0.09 % Relative Standard Deviation = 1.9 Number of Observations = 9 Blind Sample ID = N99 Mean = 0.65 % Relative Standard Deviation = 1.6 Number of Observations = 12 Blind Sample ID = N98 Mean = 0.23 % Relative Standard Deviation = 8.5 Number of Observations = 9 Blind Sample ID = N97 Mean = 0.68 % Relative Standard Deviation = 1.7 Number of Observations = 11 Blind Sample ID = N96 Mean = 0.13 % Relative Standard Deviation = 3.0 Number of Observations = 4 Blind Sample ID = N95c Mean = 0.18 % Relative Standard Deviation = 1.5 Number of Observations = 8 Blind Sample ID = N95 Mean = 0.69 % Relative Standard Deviation = 1.3 Number of Observations = 12 Blind Sample ID = N94 Mean = 1.01 % Relative Standard Deviation = 0.6 Number of Observations = 7 Blind Sample ID = N92 Mean = 0.08 % Relative Standard Deviation = 5.4 Number of Observations = 11 Blind Sample ID = N91 Mean = 0.45 % Relative Standard Deviation = 1.8 Number of Observations = 12 Blind Sample ID = N90 Mean = 0.27 % Relative Standard Deviation = 8.7 Number of Observations = 12 Blind Sample ID = N89 Mean = 1.23 % Relative Standard Deviation = 1.3 Number of Observations = 8 Blind Sample ID = N88 Mean = 0.27 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = N87 Mean = 0.16 % Relative Standard Deviation = 3.4 Number of Observations = 8 Blind Sample ID = N85 Mean = 1.01 % Relative Standard Deviation = 1.3 Number of Observations = 9 Blind Sample ID = N84 Mean = 0.23 % Relative Standard Deviation = 1.3 Number of Observations = 7 Blind Sample ID = N83 Mean = 0.09 % Relative Standard Deviation = 7.0 Number of Observations = 6 Blind Sample ID = N159 Mean = 0.19 % Relative Standard Deviation = 5.0 Number of Observations = 5 Blind Sample ID = N158 Mean = 0.06 % Relative Standard Deviation = 10.1 Number of Observations = 6 Blind Sample ID = N157 Mean = 0.12 % Relative Standard Deviation = 41.8 Number of Observations = 6 Blind Sample ID = N156 Mean = 0.09 % Relative Standard Deviation = 5.1 Number of Observations = 6 Blind Sample ID = N155 Mean = 0.07 % Relative Standard Deviation = 11.1 Number of Observations = 6 Blind Sample ID = N153 Mean = 0.25 % Relative Standard Deviation = 8.3 Number of Observations = 6 Blind Sample ID = N152 Mean = 0.06 % Relative Standard Deviation = 15.8 Number of Observations = 6 Blind Sample ID = N151 Mean = 0.29 % Relative Standard Deviation = 3.1 Number of Observations = 6 Blind Sample ID = N150 Mean = 0.16 % Relative Standard Deviation = 7.0 Number of Observations = 5 Blind Sample ID = N149 Mean = 0.24 % Relative Standard Deviation = 2.4 Number of Observations = 6 Blind Sample ID = N148 Mean = 0.12 % Relative Standard Deviation = 3.8 Number of Observations = 6 Blind Sample ID = N147 Mean = 0.33 % Relative Standard Deviation = 2.5 Number of Observations = 6 Blind Sample ID = N146 Mean = 0.10 % Relative Standard Deviation = 4.9 Number of Observations = 6 Blind Sample ID = N145 Mean = 0.31 % Relative Standard Deviation = 2.4 Number of Observations = 6 Blind Sample ID = N144 Mean = 0.15 % Relative Standard Deviation = 5.2 Number of Observations = 5 Blind Sample ID = N143 Mean = 0.47 % Relative Standard Deviation = 1.6 Number of Observations = 6 Blind Sample ID = N142 Mean = 0.13 % Relative Standard Deviation = 3.6 Number of Observations = 6 Blind Sample ID = N141 Mean = 0.44 % Relative Standard Deviation = 7.8 Number of Observations = 4 Blind Sample ID = N140 Mean = 0.08 % Relative Standard Deviation = 8.5 Number of Observations = 4 Blind Sample ID = N139 Mean = 0.44 % Relative Standard Deviation = 9.0 Number of Observations = 6 Blind Sample ID = N138 Mean = 0.12 % Relative Standard Deviation = 4.2 Number of Observations = 5 Blind Sample ID = N137 Mean = 0.16 % Relative Standard Deviation = 6.2 Number of Observations = 5 Blind Sample ID = N135 Mean = 0.12 % Relative Standard Deviation = 5.9 Number of Observations = 6 Blind Sample ID = N134 Mean = 0.09 % Relative Standard Deviation = 7.3 Number of Observations = 6 Blind Sample ID = N133 Mean = 0.28 % Relative Standard Deviation = 2.9 Number of Observations = 6 Blind Sample ID = N132 Mean = 0.11 % Relative Standard Deviation = 1.1 Number of Observations = 6 Blind Sample ID = N131 Mean = 0.48 % Relative Standard Deviation = 2.7 Number of Observations = 6 Blind Sample ID = N130 Mean = 0.19 % Relative Standard Deviation = 3.7 Number of Observations = 6 Blind Sample ID = N129 Mean = 0.46 % Relative Standard Deviation = 3.2 Number of Observations = 6 Blind Sample ID = N128 Mean = 0.11 % Relative Standard Deviation = 6.8 Number of Observations = 6 Blind Sample ID = N127 Mean = 0.36 % Relative Standard Deviation = 7.1 Number of Observations = 6 Blind Sample ID = N126 Mean = 0.14 % Relative Standard Deviation = 9.0 Number of Observations = 6 Blind Sample ID = N125 Mean = 0.18 % Relative Standard Deviation = 2.8 Number of Observations = 6 Blind Sample ID = N124 Mean = 0.29 % Relative Standard Deviation = 2.8 Number of Observations = 6 Blind Sample ID = N123 Mean = 0.10 % Relative Standard Deviation = 4.9 Number of Observations = 6 Blind Sample ID = N121 Mean = 0.51 % Relative Standard Deviation = 2.0 Number of Observations = 5 Blind Sample ID = N120 Mean = 0.24 % Relative Standard Deviation = 2.2 Number of Observations = 6 Blind Sample ID = N119 Mean = 0.83 % Relative Standard Deviation = 2.6 Number of Observations = 6 Blind Sample ID = N118 Mean = 0.40 % Relative Standard Deviation = 3.7 Number of Observations = 6 Blind Sample ID = N117 Mean = 0.41 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = N116 Mean = 0.24 % Relative Standard Deviation = 1.5 Number of Observations = 12 Blind Sample ID = N115 Mean = 0.98 % Relative Standard Deviation = 3.6 Number of Observations = 12 Blind Sample ID = N114 Mean = 0.21 % Relative Standard Deviation = 5.7 Number of Observations = 11 Blind Sample ID = N113 Mean = 0.89 % Relative Standard Deviation = 2.3 Number of Observations = 11 Blind Sample ID = N112 Mean = 0.29 % Relative Standard Deviation = 4.0 Number of Observations = 12 Blind Sample ID = N111 Mean = 0.73 % Relative Standard Deviation = 2.5 Number of Observations = 11 Blind Sample ID = N110 Mean = 0.20 % Relative Standard Deviation = 1.8 Number of Observations = 12 Blind Sample ID = N109 Mean = 0.48 % Relative Standard Deviation = 1.5 Number of Observations = 12 Blind Sample ID = N108 Mean = 0.20 % Relative Standard Deviation = 4.4 Number of Observations = 12 Blind Sample ID = N107 Mean = 1.09 % Relative Standard Deviation = 3.5 Number of Observations = 12 Blind Sample ID = N106 Mean = 0.27 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = N105 Mean = 0.73 % Relative Standard Deviation = 1.0 Number of Observations = 12 Blind Sample ID = N104 Mean = 0.33 % Relative Standard Deviation = 1.0 Number of Observations = 12 Blind Sample ID = N103 Mean = 0.82 % Relative Standard Deviation = 3.2 Number of Observations = 8 Blind Sample ID = N102 Mean = 0.37 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = N101 Mean = 0.79 % Relative Standard Deviation = 1.7 Number of Observations = 11 Blind Sample ID = N100
The SGPlot Procedure


- Kjeldahl Nitrogen (NH3+NH4 plus org N; as N), FIL, CFA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00623, MCode: KJ002
Dates: 10/13/04 through 06/14/24
Open Data Set

Mean = 4.47 % Relative Standard Deviation = 2.4 Number of Observations = 49 Blind Sample ID = NS31 Mean = 3.39 % Relative Standard Deviation = 7.5 Number of Observations = 74 Blind Sample ID = NS29 Mean = 3.76 % Relative Standard Deviation = 3.0 Number of Observations = 72 Blind Sample ID = NS27 Mean = 3.58 % Relative Standard Deviation = 3.1 Number of Observations = 84 Blind Sample ID = NS25 Mean = 0.68 % Relative Standard Deviation = 5.4 Number of Observations = 66 Blind Sample ID = NS23 Mean = 1.49 % Relative Standard Deviation = 3.7 Number of Observations = 84 Blind Sample ID = NS21 Mean = 2.22 % Relative Standard Deviation = 3.4 Number of Observations = 92 Blind Sample ID = NS19 Mean = 0.90 % Relative Standard Deviation = 2.5 Number of Observations = 4 Blind Sample ID = NS17X2 Mean = 1.79 % Relative Standard Deviation = 5.1 Number of Observations = 71 Blind Sample ID = NS17 Mean = 0.87 % Relative Standard Deviation = 4.8 Number of Observations = 51 Blind Sample ID = NS15 Mean = 2.89 % Relative Standard Deviation = 3.5 Number of Observations = 20 Blind Sample ID = NS13 Mean = 0.19 % Relative Standard Deviation = 17.6 Number of Observations = 22 Blind Sample ID = N99 Mean = 0.63 % Relative Standard Deviation = 4.4 Number of Observations = 24 Blind Sample ID = N98 Mean = 0.37 % Relative Standard Deviation = 4.6 Number of Observations = 23 Blind Sample ID = N97 Mean = 0.70 % Relative Standard Deviation = 3.7 Number of Observations = 22 Blind Sample ID = N96 Mean = 0.18 % Relative Standard Deviation = 9.8 Number of Observations = 19 Blind Sample ID = N95 Mean = 0.71 % Relative Standard Deviation = 3.1 Number of Observations = 23 Blind Sample ID = N94 Mean = 0.16 % Relative Standard Deviation = 13.5 Number of Observations = 24 Blind Sample ID = N93 Mean = 1.04 % Relative Standard Deviation = 4.8 Number of Observations = 11 Blind Sample ID = N92 Mean = 0.08 % Relative Standard Deviation = 39.5 Number of Observations = 19 Blind Sample ID = N91 Mean = 0.52 % Relative Standard Deviation = 4.7 Number of Observations = 24 Blind Sample ID = N90 Mean = 0.28 % Relative Standard Deviation = 8.6 Number of Observations = 23 Blind Sample ID = N89 Mean = 1.29 % Relative Standard Deviation = 2.8 Number of Observations = 16 Blind Sample ID = N88 Mean = 0.28 % Relative Standard Deviation = 10.8 Number of Observations = 24 Blind Sample ID = N87 Mean = 1.00 % Relative Standard Deviation = 3.7 Number of Observations = 23 Blind Sample ID = N86 Mean = 0.18 % Relative Standard Deviation = 10.6 Number of Observations = 23 Blind Sample ID = N85 Mean = 1.07 % Relative Standard Deviation = 3.2 Number of Observations = 23 Blind Sample ID = N84 Mean = 0.23 % Relative Standard Deviation = 12.7 Number of Observations = 20 Blind Sample ID = N83 Mean = 2.67 % Relative Standard Deviation = 4.3 Number of Observations = 8 Blind Sample ID = N162 Mean = 0.50 % Relative Standard Deviation = 7.4 Number of Observations = 23 Blind Sample ID = N160 Mean = 0.10 % Relative Standard Deviation = 27.6 Number of Observations = 22 Blind Sample ID = N159 Mean = 0.23 % Relative Standard Deviation = 16.5 Number of Observations = 24 Blind Sample ID = N158 Mean = 0.08 % Relative Standard Deviation = 13.2 Number of Observations = 23 Blind Sample ID = N157 Mean = 0.38 % Relative Standard Deviation = 13.9 Number of Observations = 24 Blind Sample ID = N156 Mean = 0.10 % Relative Standard Deviation = 22.2 Number of Observations = 24 Blind Sample ID = N155 Mean = 0.10 % Relative Standard Deviation = 31.6 Number of Observations = 21 Blind Sample ID = N153 Mean = 0.31 % Relative Standard Deviation = 21.8 Number of Observations = 12 Blind Sample ID = N152 Mean = 0.08 % Relative Standard Deviation = 18.0 Number of Observations = 12 Blind Sample ID = N151 Mean = 0.41 % Relative Standard Deviation = 6.1 Number of Observations = 12 Blind Sample ID = N150 Mean = 0.18 % Relative Standard Deviation = 12.6 Number of Observations = 12 Blind Sample ID = N149 Mean = 0.31 % Relative Standard Deviation = 9.7 Number of Observations = 12 Blind Sample ID = N148 Mean = 0.13 % Relative Standard Deviation = 13.5 Number of Observations = 12 Blind Sample ID = N147 Mean = 0.36 % Relative Standard Deviation = 13.9 Number of Observations = 12 Blind Sample ID = N146 Mean = 0.11 % Relative Standard Deviation = 19.7 Number of Observations = 11 Blind Sample ID = N145 Mean = 0.36 % Relative Standard Deviation = 9.6 Number of Observations = 12 Blind Sample ID = N144 Mean = 0.17 % Relative Standard Deviation = 17.0 Number of Observations = 12 Blind Sample ID = N143 Mean = 0.58 % Relative Standard Deviation = 3.4 Number of Observations = 12 Blind Sample ID = N142 Mean = 0.15 % Relative Standard Deviation = 19.0 Number of Observations = 12 Blind Sample ID = N141 Mean = 0.48 % Relative Standard Deviation = 3.7 Number of Observations = 9 Blind Sample ID = N140 Mean = 0.12 % Relative Standard Deviation = 12.7 Number of Observations = 8 Blind Sample ID = N139 Mean = 0.46 % Relative Standard Deviation = 3.6 Number of Observations = 12 Blind Sample ID = N138 Mean = 0.12 % Relative Standard Deviation = 19.8 Number of Observations = 12 Blind Sample ID = N137 Mean = 0.41 % Relative Standard Deviation = 9.5 Number of Observations = 5 Blind Sample ID = N136 Mean = 0.17 % Relative Standard Deviation = 8.8 Number of Observations = 12 Blind Sample ID = N135 Mean = 0.18 % Relative Standard Deviation = 18.8 Number of Observations = 12 Blind Sample ID = N134 Mean = 0.12 % Relative Standard Deviation = 17.9 Number of Observations = 12 Blind Sample ID = N133 Mean = 0.29 % Relative Standard Deviation = 9.6 Number of Observations = 11 Blind Sample ID = N132 Mean = 0.13 % Relative Standard Deviation = 19.5 Number of Observations = 12 Blind Sample ID = N131 Mean = 0.53 % Relative Standard Deviation = 4.6 Number of Observations = 12 Blind Sample ID = N130 Mean = 0.19 % Relative Standard Deviation = 13.0 Number of Observations = 12 Blind Sample ID = N129 Mean = 0.50 % Relative Standard Deviation = 3.5 Number of Observations = 12 Blind Sample ID = N128 Mean = 0.14 % Relative Standard Deviation = 22.6 Number of Observations = 12 Blind Sample ID = N127 Mean = 0.39 % Relative Standard Deviation = 7.7 Number of Observations = 12 Blind Sample ID = N126 Mean = 0.16 % Relative Standard Deviation = 18.4 Number of Observations = 12 Blind Sample ID = N125 Mean = 0.18 % Relative Standard Deviation = 13.3 Number of Observations = 12 Blind Sample ID = N124 Mean = 0.30 % Relative Standard Deviation = 8.6 Number of Observations = 12 Blind Sample ID = N123 Mean = 0.60 % Relative Standard Deviation = 6.4 Number of Observations = 10 Blind Sample ID = N122 Mean = 0.17 % Relative Standard Deviation = 33.8 Number of Observations = 12 Blind Sample ID = N121 Mean = 0.54 % Relative Standard Deviation = 4.4 Number of Observations = 10 Blind Sample ID = N120 Mean = 0.29 % Relative Standard Deviation = 12.8 Number of Observations = 11 Blind Sample ID = N119 Mean = 0.96 % Relative Standard Deviation = 6.2 Number of Observations = 12 Blind Sample ID = N118 Mean = 0.42 % Relative Standard Deviation = 10.9 Number of Observations = 12 Blind Sample ID = N117 Mean = 0.44 % Relative Standard Deviation = 5.1 Number of Observations = 24 Blind Sample ID = N116 Mean = 0.24 % Relative Standard Deviation = 12.5 Number of Observations = 24 Blind Sample ID = N115 Mean = 1.11 % Relative Standard Deviation = 5.2 Number of Observations = 24 Blind Sample ID = N114 Mean = 0.24 % Relative Standard Deviation = 13.4 Number of Observations = 24 Blind Sample ID = N113 Mean = 0.86 % Relative Standard Deviation = 3.7 Number of Observations = 24 Blind Sample ID = N112 Mean = 0.29 % Relative Standard Deviation = 7.6 Number of Observations = 24 Blind Sample ID = N111 Mean = 0.76 % Relative Standard Deviation = 7.3 Number of Observations = 18 Blind Sample ID = N110 Mean = 0.25 % Relative Standard Deviation = 7.8 Number of Observations = 24 Blind Sample ID = N109 Mean = 0.52 % Relative Standard Deviation = 7.0 Number of Observations = 24 Blind Sample ID = N108 Mean = 0.25 % Relative Standard Deviation = 17.5 Number of Observations = 24 Blind Sample ID = N107 Mean = 1.18 % Relative Standard Deviation = 4.6 Number of Observations = 24 Blind Sample ID = N106 Mean = 0.30 % Relative Standard Deviation = 9.9 Number of Observations = 24 Blind Sample ID = N105 Mean = 0.76 % Relative Standard Deviation = 4.8 Number of Observations = 24 Blind Sample ID = N104 Mean = 0.33 % Relative Standard Deviation = 7.0 Number of Observations = 24 Blind Sample ID = N103 Mean = 0.95 % Relative Standard Deviation = 3.2 Number of Observations = 12 Blind Sample ID = N102 Mean = 0.40 % Relative Standard Deviation = 6.2 Number of Observations = 24 Blind Sample ID = N101 Mean = 0.78 % Relative Standard Deviation = 4.0 Number of Observations = 22 Blind Sample ID = N100 Mean = 0.63 % Relative Standard Deviation = 144.2 Number of Observations = 23 Blind Sample ID =
The SGPlot Procedure


- Kjeldahl Nitrogen (NH3+NH4 plus org N; as N), FIL, CFA, ACD -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00623, MCode: KJ003
Dates: 10/20/04 through 10/17/06
Open Data Set

Mean = 0.54 % Relative Standard Deviation = 5.0 Number of Observations = 12 Blind Sample ID = N90 Mean = 0.30 % Relative Standard Deviation = 7.8 Number of Observations = 12 Blind Sample ID = N89 Mean = 1.32 % Relative Standard Deviation = 2.1 Number of Observations = 4 Blind Sample ID = N88 Mean = 0.29 % Relative Standard Deviation = 1.5 Number of Observations = 4 Blind Sample ID = N87 Mean = 0.98 % Relative Standard Deviation = 2.2 Number of Observations = 11 Blind Sample ID = N86 Mean = 0.18 % Relative Standard Deviation = 11.7 Number of Observations = 11 Blind Sample ID = N85 Mean = 1.08 % Relative Standard Deviation = 2.2 Number of Observations = 10 Blind Sample ID = N84 Mean = 0.26 % Relative Standard Deviation = 10.9 Number of Observations = 8 Blind Sample ID = N83
The SGPlot Procedure


- Kjeldahl Nitrogen (NH3+NH4 plus org N; as N), UNF, CFA, ACD -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00625, MCode: KJ008
Dates: 10/12/04 through 07/09/24
Open Data Set

Mean = 4.50 % Relative Standard Deviation = 2.0 Number of Observations = 50 Blind Sample ID = NS31 Mean = 3.39 % Relative Standard Deviation = 7.8 Number of Observations = 75 Blind Sample ID = NS29 Mean = 3.72 % Relative Standard Deviation = 3.2 Number of Observations = 72 Blind Sample ID = NS27 Mean = 3.55 % Relative Standard Deviation = 2.8 Number of Observations = 84 Blind Sample ID = NS25 Mean = 0.68 % Relative Standard Deviation = 4.6 Number of Observations = 66 Blind Sample ID = NS23 Mean = 1.50 % Relative Standard Deviation = 4.4 Number of Observations = 84 Blind Sample ID = NS21 Mean = 2.21 % Relative Standard Deviation = 3.0 Number of Observations = 92 Blind Sample ID = NS19 Mean = 0.89 % Relative Standard Deviation = 2.7 Number of Observations = 4 Blind Sample ID = NS17X2 Mean = 1.80 % Relative Standard Deviation = 4.8 Number of Observations = 71 Blind Sample ID = NS17 Mean = 0.87 % Relative Standard Deviation = 4.0 Number of Observations = 51 Blind Sample ID = NS15 Mean = 2.87 % Relative Standard Deviation = 3.1 Number of Observations = 20 Blind Sample ID = NS13 Mean = 0.18 % Relative Standard Deviation = 10.4 Number of Observations = 22 Blind Sample ID = N99 Mean = 0.67 % Relative Standard Deviation = 3.8 Number of Observations = 24 Blind Sample ID = N98 Mean = 0.37 % Relative Standard Deviation = 8.3 Number of Observations = 23 Blind Sample ID = N97 Mean = 0.70 % Relative Standard Deviation = 4.0 Number of Observations = 22 Blind Sample ID = N96 Mean = 0.19 % Relative Standard Deviation = 27.1 Number of Observations = 19 Blind Sample ID = N95 Mean = 0.71 % Relative Standard Deviation = 3.9 Number of Observations = 24 Blind Sample ID = N94 Mean = 0.16 % Relative Standard Deviation = 18.0 Number of Observations = 24 Blind Sample ID = N93 Mean = 1.06 % Relative Standard Deviation = 4.1 Number of Observations = 12 Blind Sample ID = N92 Mean = 0.08 % Relative Standard Deviation = 34.3 Number of Observations = 22 Blind Sample ID = N91 Mean = 0.51 % Relative Standard Deviation = 5.4 Number of Observations = 24 Blind Sample ID = N90 Mean = 0.30 % Relative Standard Deviation = 20.9 Number of Observations = 24 Blind Sample ID = N89 Mean = 1.32 % Relative Standard Deviation = 2.0 Number of Observations = 16 Blind Sample ID = N88 Mean = 0.30 % Relative Standard Deviation = 15.8 Number of Observations = 24 Blind Sample ID = N87 Mean = 1.01 % Relative Standard Deviation = 3.0 Number of Observations = 23 Blind Sample ID = N86 Mean = 0.18 % Relative Standard Deviation = 7.0 Number of Observations = 23 Blind Sample ID = N85 Mean = 1.09 % Relative Standard Deviation = 3.9 Number of Observations = 23 Blind Sample ID = N84 Mean = 0.23 % Relative Standard Deviation = 6.2 Number of Observations = 20 Blind Sample ID = N83 Mean = 2.69 % Relative Standard Deviation = 2.6 Number of Observations = 8 Blind Sample ID = N162 Mean = 0.49 % Relative Standard Deviation = 10.4 Number of Observations = 20 Blind Sample ID = N160 Mean = 0.10 % Relative Standard Deviation = 29.0 Number of Observations = 20 Blind Sample ID = N159 Mean = 0.22 % Relative Standard Deviation = 24.6 Number of Observations = 24 Blind Sample ID = N158 Mean = 0.08 % Relative Standard Deviation = 14.7 Number of Observations = 23 Blind Sample ID = N157 Mean = 0.41 % Relative Standard Deviation = 24.0 Number of Observations = 24 Blind Sample ID = N156 Mean = 0.11 % Relative Standard Deviation = 49.2 Number of Observations = 24 Blind Sample ID = N155 Mean = 0.08 % Relative Standard Deviation = 17.2 Number of Observations = 22 Blind Sample ID = N153 Mean = 0.34 % Relative Standard Deviation = 8.6 Number of Observations = 12 Blind Sample ID = N152 Mean = 0.10 % Relative Standard Deviation = 31.2 Number of Observations = 12 Blind Sample ID = N151 Mean = 0.42 % Relative Standard Deviation = 10.3 Number of Observations = 12 Blind Sample ID = N150 Mean = 0.19 % Relative Standard Deviation = 9.9 Number of Observations = 12 Blind Sample ID = N149 Mean = 0.30 % Relative Standard Deviation = 5.0 Number of Observations = 12 Blind Sample ID = N148 Mean = 0.13 % Relative Standard Deviation = 12.3 Number of Observations = 12 Blind Sample ID = N147 Mean = 0.34 % Relative Standard Deviation = 6.5 Number of Observations = 12 Blind Sample ID = N146 Mean = 0.11 % Relative Standard Deviation = 22.6 Number of Observations = 11 Blind Sample ID = N145 Mean = 0.36 % Relative Standard Deviation = 7.0 Number of Observations = 12 Blind Sample ID = N144 Mean = 0.16 % Relative Standard Deviation = 17.5 Number of Observations = 12 Blind Sample ID = N143 Mean = 0.59 % Relative Standard Deviation = 6.9 Number of Observations = 12 Blind Sample ID = N142 Mean = 0.16 % Relative Standard Deviation = 12.3 Number of Observations = 12 Blind Sample ID = N141 Mean = 0.47 % Relative Standard Deviation = 5.4 Number of Observations = 9 Blind Sample ID = N140 Mean = 0.12 % Relative Standard Deviation = 20.5 Number of Observations = 7 Blind Sample ID = N139 Mean = 0.48 % Relative Standard Deviation = 5.0 Number of Observations = 11 Blind Sample ID = N138 Mean = 0.12 % Relative Standard Deviation = 18.7 Number of Observations = 12 Blind Sample ID = N137 Mean = 0.40 % Relative Standard Deviation = 5.1 Number of Observations = 5 Blind Sample ID = N136 Mean = 0.17 % Relative Standard Deviation = 12.4 Number of Observations = 11 Blind Sample ID = N135 Mean = 0.17 % Relative Standard Deviation = 22.6 Number of Observations = 12 Blind Sample ID = N134 Mean = 0.12 % Relative Standard Deviation = 27.6 Number of Observations = 12 Blind Sample ID = N133 Mean = 0.30 % Relative Standard Deviation = 7.7 Number of Observations = 11 Blind Sample ID = N132 Mean = 0.11 % Relative Standard Deviation = 17.1 Number of Observations = 12 Blind Sample ID = N131 Mean = 0.53 % Relative Standard Deviation = 4.9 Number of Observations = 11 Blind Sample ID = N130 Mean = 0.20 % Relative Standard Deviation = 14.3 Number of Observations = 12 Blind Sample ID = N129 Mean = 0.50 % Relative Standard Deviation = 3.9 Number of Observations = 12 Blind Sample ID = N128 Mean = 0.15 % Relative Standard Deviation = 17.6 Number of Observations = 12 Blind Sample ID = N127 Mean = 0.38 % Relative Standard Deviation = 6.0 Number of Observations = 12 Blind Sample ID = N126 Mean = 0.17 % Relative Standard Deviation = 17.3 Number of Observations = 12 Blind Sample ID = N125 Mean = 0.20 % Relative Standard Deviation = 14.3 Number of Observations = 12 Blind Sample ID = N124 Mean = 0.29 % Relative Standard Deviation = 6.5 Number of Observations = 12 Blind Sample ID = N123 Mean = 0.59 % Relative Standard Deviation = 9.1 Number of Observations = 12 Blind Sample ID = N122 Mean = 0.17 % Relative Standard Deviation = 18.4 Number of Observations = 12 Blind Sample ID = N121 Mean = 0.54 % Relative Standard Deviation = 4.2 Number of Observations = 10 Blind Sample ID = N120 Mean = 0.26 % Relative Standard Deviation = 10.4 Number of Observations = 11 Blind Sample ID = N119 Mean = 0.94 % Relative Standard Deviation = 3.6 Number of Observations = 12 Blind Sample ID = N118 Mean = 0.42 % Relative Standard Deviation = 7.2 Number of Observations = 12 Blind Sample ID = N117 Mean = 0.43 % Relative Standard Deviation = 4.8 Number of Observations = 24 Blind Sample ID = N116 Mean = 0.24 % Relative Standard Deviation = 10.9 Number of Observations = 24 Blind Sample ID = N115 Mean = 1.06 % Relative Standard Deviation = 3.7 Number of Observations = 24 Blind Sample ID = N114 Mean = 0.25 % Relative Standard Deviation = 12.9 Number of Observations = 24 Blind Sample ID = N113 Mean = 0.87 % Relative Standard Deviation = 7.1 Number of Observations = 24 Blind Sample ID = N112 Mean = 0.30 % Relative Standard Deviation = 7.1 Number of Observations = 24 Blind Sample ID = N111 Mean = 0.75 % Relative Standard Deviation = 6.0 Number of Observations = 23 Blind Sample ID = N110 Mean = 0.25 % Relative Standard Deviation = 8.4 Number of Observations = 24 Blind Sample ID = N109 Mean = 0.53 % Relative Standard Deviation = 7.3 Number of Observations = 24 Blind Sample ID = N108 Mean = 0.24 % Relative Standard Deviation = 8.1 Number of Observations = 24 Blind Sample ID = N107 Mean = 1.19 % Relative Standard Deviation = 3.2 Number of Observations = 24 Blind Sample ID = N106 Mean = 0.30 % Relative Standard Deviation = 8.7 Number of Observations = 24 Blind Sample ID = N105 Mean = 0.77 % Relative Standard Deviation = 4.8 Number of Observations = 24 Blind Sample ID = N104 Mean = 0.33 % Relative Standard Deviation = 7.5 Number of Observations = 24 Blind Sample ID = N103 Mean = 0.93 % Relative Standard Deviation = 4.2 Number of Observations = 12 Blind Sample ID = N102 Mean = 0.40 % Relative Standard Deviation = 9.0 Number of Observations = 24 Blind Sample ID = N101 Mean = 0.79 % Relative Standard Deviation = 2.4 Number of Observations = 22 Blind Sample ID = N100
The SGPlot Procedure


- Nitrate plus Nitrite (as N), FIL, COL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00631, MCode: CL048
Dates: 10/12/04 through 10/17/11
Open Data Set

Mean = 0.29 % Relative Standard Deviation = 2.2 Number of Observations = 73 Blind Sample ID = NS20 Mean = 0.40 % Relative Standard Deviation = 2.0 Number of Observations = 93 Blind Sample ID = NS18 Mean = 0.36 % Relative Standard Deviation = 3.4 Number of Observations = 4 Blind Sample ID = NS16X2 Mean = 0.74 % Relative Standard Deviation = 2.6 Number of Observations = 77 Blind Sample ID = NS16 Mean = 0.23 % Relative Standard Deviation = 4.4 Number of Observations = 45 Blind Sample ID = NS14 Mean = 0.38 % Relative Standard Deviation = 2.7 Number of Observations = 19 Blind Sample ID = NS12 Mean = 0.24 % Relative Standard Deviation = 2.7 Number of Observations = 22 Blind Sample ID = N99 Mean = 1.03 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N98 Mean = 0.36 % Relative Standard Deviation = 2.7 Number of Observations = 23 Blind Sample ID = N97 Mean = 1.15 % Relative Standard Deviation = 1.1 Number of Observations = 22 Blind Sample ID = N96 Mean = 0.09 % Relative Standard Deviation = 6.4 Number of Observations = 19 Blind Sample ID = N95 Mean = 0.94 % Relative Standard Deviation = 1.2 Number of Observations = 23 Blind Sample ID = N94 Mean = 0.14 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = N93 Mean = 1.46 % Relative Standard Deviation = 6.0 Number of Observations = 12 Blind Sample ID = N92 Mean = 0.13 % Relative Standard Deviation = 6.1 Number of Observations = 23 Blind Sample ID = N91 Mean = 0.76 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N90 Mean = 0.27 % Relative Standard Deviation = 5.9 Number of Observations = 24 Blind Sample ID = N89 Mean = 1.36 % Relative Standard Deviation = 3.6 Number of Observations = 16 Blind Sample ID = N88 Mean = 0.19 % Relative Standard Deviation = 3.6 Number of Observations = 24 Blind Sample ID = N87 Mean = 0.68 % Relative Standard Deviation = 2.4 Number of Observations = 23 Blind Sample ID = N86 Mean = 0.17 % Relative Standard Deviation = 5.3 Number of Observations = 23 Blind Sample ID = N85 Mean = 1.20 % Relative Standard Deviation = 2.2 Number of Observations = 23 Blind Sample ID = N84 Mean = 0.06 % Relative Standard Deviation = 13.1 Number of Observations = 20 Blind Sample ID = N83 Mean = 1.38 % Relative Standard Deviation = 0.3 Number of Observations = 3 Blind Sample ID = N112 Mean = 1.44 % Relative Standard Deviation = 3.6 Number of Observations = 18 Blind Sample ID = N110 Mean = 0.19 % Relative Standard Deviation = 4.5 Number of Observations = 24 Blind Sample ID = N109 Mean = 0.92 % Relative Standard Deviation = 1.5 Number of Observations = 24 Blind Sample ID = N108 Mean = 0.14 % Relative Standard Deviation = 4.4 Number of Observations = 24 Blind Sample ID = N107 Mean = 1.11 % Relative Standard Deviation = 1.4 Number of Observations = 24 Blind Sample ID = N106 Mean = 0.17 % Relative Standard Deviation = 2.8 Number of Observations = 24 Blind Sample ID = N105 Mean = 0.83 % Relative Standard Deviation = 1.2 Number of Observations = 24 Blind Sample ID = N104 Mean = 0.27 % Relative Standard Deviation = 1.4 Number of Observations = 24 Blind Sample ID = N103 Mean = 0.97 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = N102 Mean = 0.36 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = N101 Mean = 0.72 % Relative Standard Deviation = 0.8 Number of Observations = 22 Blind Sample ID = N100
The SGPlot Procedure


- Nitrate plus Nitrite (as N), FIL, COL, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00631, MCode: CL050
Dates: 10/06/04 through 10/18/11
Open Data Set

Mean = 0.24 % Relative Standard Deviation = 2.7 Number of Observations = 32 Blind Sample ID = N99 Mean = 0.10 % Relative Standard Deviation = 2.3 Number of Observations = 36 Blind Sample ID = N98X Mean = 0.36 % Relative Standard Deviation = 1.8 Number of Observations = 36 Blind Sample ID = N97 Mean = 0.11 % Relative Standard Deviation = 2.1 Number of Observations = 26 Blind Sample ID = N96X Mean = 0.09 % Relative Standard Deviation = 2.0 Number of Observations = 31 Blind Sample ID = N95 Mean = 0.09 % Relative Standard Deviation = 2.2 Number of Observations = 35 Blind Sample ID = N94X Mean = 0.13 % Relative Standard Deviation = 2.0 Number of Observations = 35 Blind Sample ID = N93 Mean = 0.14 % Relative Standard Deviation = 3.5 Number of Observations = 15 Blind Sample ID = N92X Mean = 0.13 % Relative Standard Deviation = 3.3 Number of Observations = 34 Blind Sample ID = N91 Mean = 0.07 % Relative Standard Deviation = 2.7 Number of Observations = 36 Blind Sample ID = N90X Mean = 0.27 % Relative Standard Deviation = 2.2 Number of Observations = 36 Blind Sample ID = N89 Mean = 0.13 % Relative Standard Deviation = 3.2 Number of Observations = 24 Blind Sample ID = N88X Mean = 0.19 % Relative Standard Deviation = 4.1 Number of Observations = 36 Blind Sample ID = N87 Mean = 0.07 % Relative Standard Deviation = 6.3 Number of Observations = 20 Blind Sample ID = N86X Mean = 0.17 % Relative Standard Deviation = 4.2 Number of Observations = 46 Blind Sample ID = N85 Mean = 0.12 % Relative Standard Deviation = 3.0 Number of Observations = 21 Blind Sample ID = N84X Mean = 0.06 % Relative Standard Deviation = 3.9 Number of Observations = 40 Blind Sample ID = N83 Mean = 0.31 % Relative Standard Deviation = 0.8 Number of Observations = 3 Blind Sample ID = N111 Mean = 0.14 % Relative Standard Deviation = 3.0 Number of Observations = 28 Blind Sample ID = N110X Mean = 0.19 % Relative Standard Deviation = 1.2 Number of Observations = 36 Blind Sample ID = N109 Mean = 0.09 % Relative Standard Deviation = 2.9 Number of Observations = 36 Blind Sample ID = N108X Mean = 0.14 % Relative Standard Deviation = 2.6 Number of Observations = 35 Blind Sample ID = N107 Mean = 0.11 % Relative Standard Deviation = 2.2 Number of Observations = 36 Blind Sample ID = N106X Mean = 0.18 % Relative Standard Deviation = 3.8 Number of Observations = 36 Blind Sample ID = N105 Mean = 0.08 % Relative Standard Deviation = 3.1 Number of Observations = 36 Blind Sample ID = N104X Mean = 0.28 % Relative Standard Deviation = 2.3 Number of Observations = 36 Blind Sample ID = N103 Mean = 0.10 % Relative Standard Deviation = 1.9 Number of Observations = 16 Blind Sample ID = N102X Mean = 0.36 % Relative Standard Deviation = 1.7 Number of Observations = 36 Blind Sample ID = N101 Mean = 0.07 % Relative Standard Deviation = 2.8 Number of Observations = 29 Blind Sample ID = N100X
The SGPlot Procedure


- Nitrate plus Nitrite (as N), FIL, DA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00631, MCode: RED01
Dates: 09/30/11 through 06/06/24
Open Data Set

Mean = 6.12 % Relative Standard Deviation = 3.0 Number of Observations = 94 Blind Sample ID = NS30 Mean = 10.12 % Relative Standard Deviation = 3.1 Number of Observations = 89 Blind Sample ID = NS28 Mean = 1.88 % Relative Standard Deviation = 2.2 Number of Observations = 88 Blind Sample ID = NS26 Mean = 6.24 % Relative Standard Deviation = 3.1 Number of Observations = 96 Blind Sample ID = NS24 Mean = 1.33 % Relative Standard Deviation = 2.2 Number of Observations = 81 Blind Sample ID = NS22 Mean = 0.29 % Relative Standard Deviation = 4.3 Number of Observations = 23 Blind Sample ID = NS20 Mean = 0.84 % Relative Standard Deviation = 3.0 Number of Observations = 8 Blind Sample ID = N162 Mean = 1.19 % Relative Standard Deviation = 2.6 Number of Observations = 23 Blind Sample ID = N160 Mean = 0.23 % Relative Standard Deviation = 4.4 Number of Observations = 23 Blind Sample ID = N159 Mean = 1.49 % Relative Standard Deviation = 2.8 Number of Observations = 24 Blind Sample ID = N158 Mean = 0.30 % Relative Standard Deviation = 6.3 Number of Observations = 23 Blind Sample ID = N157 Mean = 4.46 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = N156 Mean = 0.44 % Relative Standard Deviation = 3.1 Number of Observations = 24 Blind Sample ID = N155 Mean = 0.38 % Relative Standard Deviation = 6.0 Number of Observations = 22 Blind Sample ID = N153 Mean = 2.16 % Relative Standard Deviation = 4.9 Number of Observations = 12 Blind Sample ID = N152 Mean = 0.33 % Relative Standard Deviation = 4.2 Number of Observations = 12 Blind Sample ID = N151 Mean = 1.14 % Relative Standard Deviation = 2.7 Number of Observations = 12 Blind Sample ID = N150 Mean = 0.39 % Relative Standard Deviation = 5.0 Number of Observations = 11 Blind Sample ID = N149 Mean = 1.05 % Relative Standard Deviation = 2.8 Number of Observations = 12 Blind Sample ID = N148 Mean = 0.23 % Relative Standard Deviation = 5.0 Number of Observations = 12 Blind Sample ID = N147 Mean = 0.41 % Relative Standard Deviation = 2.3 Number of Observations = 12 Blind Sample ID = N146 Mean = 0.10 % Relative Standard Deviation = 8.8 Number of Observations = 11 Blind Sample ID = N145 Mean = 0.55 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = N144 Mean = 0.18 % Relative Standard Deviation = 5.1 Number of Observations = 12 Blind Sample ID = N143 Mean = 0.46 % Relative Standard Deviation = 2.3 Number of Observations = 12 Blind Sample ID = N142 Mean = 0.14 % Relative Standard Deviation = 6.4 Number of Observations = 12 Blind Sample ID = N141 Mean = 0.67 % Relative Standard Deviation = 4.2 Number of Observations = 9 Blind Sample ID = N140 Mean = 0.19 % Relative Standard Deviation = 6.9 Number of Observations = 7 Blind Sample ID = N139 Mean = 0.78 % Relative Standard Deviation = 3.6 Number of Observations = 12 Blind Sample ID = N138 Mean = 0.32 % Relative Standard Deviation = 7.3 Number of Observations = 12 Blind Sample ID = N137 Mean = 0.64 % Relative Standard Deviation = 5.1 Number of Observations = 5 Blind Sample ID = N136 Mean = 0.43 % Relative Standard Deviation = 3.1 Number of Observations = 11 Blind Sample ID = N135 Mean = 0.79 % Relative Standard Deviation = 2.2 Number of Observations = 12 Blind Sample ID = N134 Mean = 0.09 % Relative Standard Deviation = 12.4 Number of Observations = 12 Blind Sample ID = N133 Mean = 0.93 % Relative Standard Deviation = 3.5 Number of Observations = 11 Blind Sample ID = N132 Mean = 0.35 % Relative Standard Deviation = 6.0 Number of Observations = 12 Blind Sample ID = N131 Mean = 1.78 % Relative Standard Deviation = 3.0 Number of Observations = 12 Blind Sample ID = N130 Mean = 0.25 % Relative Standard Deviation = 5.1 Number of Observations = 12 Blind Sample ID = N129 Mean = 3.04 % Relative Standard Deviation = 1.9 Number of Observations = 12 Blind Sample ID = N128 Mean = 0.30 % Relative Standard Deviation = 4.4 Number of Observations = 12 Blind Sample ID = N127 Mean = 1.43 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = N126 Mean = 0.29 % Relative Standard Deviation = 3.8 Number of Observations = 11 Blind Sample ID = N125 Mean = 0.53 % Relative Standard Deviation = 8.3 Number of Observations = 12 Blind Sample ID = N124 Mean = 0.24 % Relative Standard Deviation = 7.4 Number of Observations = 12 Blind Sample ID = N123 Mean = 1.10 % Relative Standard Deviation = 3.1 Number of Observations = 10 Blind Sample ID = N122 Mean = 0.42 % Relative Standard Deviation = 4.5 Number of Observations = 12 Blind Sample ID = N121 Mean = 0.68 % Relative Standard Deviation = 3.6 Number of Observations = 10 Blind Sample ID = N120 Mean = 0.27 % Relative Standard Deviation = 4.7 Number of Observations = 11 Blind Sample ID = N119 Mean = 0.58 % Relative Standard Deviation = 3.2 Number of Observations = 12 Blind Sample ID = N118 Mean = 0.22 % Relative Standard Deviation = 9.4 Number of Observations = 12 Blind Sample ID = N117 Mean = 0.43 % Relative Standard Deviation = 3.4 Number of Observations = 24 Blind Sample ID = N116 Mean = 0.23 % Relative Standard Deviation = 6.1 Number of Observations = 23 Blind Sample ID = N115 Mean = 1.12 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N114 Mean = 0.11 % Relative Standard Deviation = 11.5 Number of Observations = 24 Blind Sample ID = N113 Mean = 1.41 % Relative Standard Deviation = 3.0 Number of Observations = 22 Blind Sample ID = N112 Mean = 0.31 % Relative Standard Deviation = 5.7 Number of Observations = 23 Blind Sample ID = N111 Mean = 0.90 % Relative Standard Deviation = 51.2 Number of Observations = 24 Blind Sample ID =
The SGPlot Procedure


- Nitrate plus Nitrite (as N), FIL, DA, ACD -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00631, MCode: RED03
Dates: 10/25/23 through 06/04/24
Open Data Set

Mean = 1.18 % Relative Standard Deviation = 1.9 Number of Observations = 6 Blind Sample ID = N160 Mean = 0.24 % Relative Standard Deviation = 1.8 Number of Observations = 6 Blind Sample ID = N159
The SGPlot Procedure


- Nitrate plus Nitrite (as N), FIL, DA, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00631, MCode: RED02
Dates: 10/20/11 through 07/01/24
Open Data Set

Mean = 0.09 % Relative Standard Deviation = 2.5 Number of Observations = 8 Blind Sample ID = N162X Mean = 0.36 % Relative Standard Deviation = 1.5 Number of Observations = 6 Blind Sample ID = N161 Mean = 0.12 % Relative Standard Deviation = 2.8 Number of Observations = 14 Blind Sample ID = N160X Mean = 0.23 % Relative Standard Deviation = 2.5 Number of Observations = 15 Blind Sample ID = N159 Mean = 0.15 % Relative Standard Deviation = 5.5 Number of Observations = 17 Blind Sample ID = N158X Mean = 0.30 % Relative Standard Deviation = 4.4 Number of Observations = 18 Blind Sample ID = N157 Mean = 0.46 % Relative Standard Deviation = 3.3 Number of Observations = 15 Blind Sample ID = N156X Mean = 0.46 % Relative Standard Deviation = 3.0 Number of Observations = 15 Blind Sample ID = N155 Mean = 0.39 % Relative Standard Deviation = 3.1 Number of Observations = 18 Blind Sample ID = N153 Mean = 0.22 % Relative Standard Deviation = 3.3 Number of Observations = 13 Blind Sample ID = N152X Mean = 0.33 % Relative Standard Deviation = 3.0 Number of Observations = 14 Blind Sample ID = N151 Mean = 0.11 % Relative Standard Deviation = 3.6 Number of Observations = 18 Blind Sample ID = N150X Mean = 0.39 % Relative Standard Deviation = 3.4 Number of Observations = 17 Blind Sample ID = N149 Mean = 0.11 % Relative Standard Deviation = 2.7 Number of Observations = 15 Blind Sample ID = N148X Mean = 0.23 % Relative Standard Deviation = 1.6 Number of Observations = 14 Blind Sample ID = N147 Mean = 0.04 % Relative Standard Deviation = 5.4 Number of Observations = 17 Blind Sample ID = N146X Mean = 0.09 % Relative Standard Deviation = 2.6 Number of Observations = 18 Blind Sample ID = N145 Mean = 0.06 % Relative Standard Deviation = 6.7 Number of Observations = 15 Blind Sample ID = N144X Mean = 0.18 % Relative Standard Deviation = 3.0 Number of Observations = 15 Blind Sample ID = N143 Mean = 0.05 % Relative Standard Deviation = 5.9 Number of Observations = 18 Blind Sample ID = N142X Mean = 0.14 % Relative Standard Deviation = 5.2 Number of Observations = 18 Blind Sample ID = N141 Mean = 0.07 % Relative Standard Deviation = 4.5 Number of Observations = 11 Blind Sample ID = N140X Mean = 0.19 % Relative Standard Deviation = 2.1 Number of Observations = 12 Blind Sample ID = N139 Mean = 0.08 % Relative Standard Deviation = 3.4 Number of Observations = 18 Blind Sample ID = N138X Mean = 0.32 % Relative Standard Deviation = 3.1 Number of Observations = 16 Blind Sample ID = N137 Mean = 0.06 % Relative Standard Deviation = 1.5 Number of Observations = 6 Blind Sample ID = N136X Mean = 0.43 % Relative Standard Deviation = 2.3 Number of Observations = 15 Blind Sample ID = N135 Mean = 0.08 % Relative Standard Deviation = 5.0 Number of Observations = 23 Blind Sample ID = N134X Mean = 0.09 % Relative Standard Deviation = 5.8 Number of Observations = 24 Blind Sample ID = N133 Mean = 0.09 % Relative Standard Deviation = 3.6 Number of Observations = 21 Blind Sample ID = N132X Mean = 0.36 % Relative Standard Deviation = 3.1 Number of Observations = 21 Blind Sample ID = N131 Mean = 0.18 % Relative Standard Deviation = 3.1 Number of Observations = 22 Blind Sample ID = N130X Mean = 0.27 % Relative Standard Deviation = 2.9 Number of Observations = 24 Blind Sample ID = N129 Mean = 0.30 % Relative Standard Deviation = 3.2 Number of Observations = 24 Blind Sample ID = N128X Mean = 0.31 % Relative Standard Deviation = 2.6 Number of Observations = 23 Blind Sample ID = N127 Mean = 0.15 % Relative Standard Deviation = 3.2 Number of Observations = 24 Blind Sample ID = N126X Mean = 0.30 % Relative Standard Deviation = 2.8 Number of Observations = 24 Blind Sample ID = N125 Mean = 0.06 % Relative Standard Deviation = 8.6 Number of Observations = 23 Blind Sample ID = N124X Mean = 0.25 % Relative Standard Deviation = 2.9 Number of Observations = 24 Blind Sample ID = N123 Mean = 0.11 % Relative Standard Deviation = 3.7 Number of Observations = 24 Blind Sample ID = N122X Mean = 0.42 % Relative Standard Deviation = 2.6 Number of Observations = 24 Blind Sample ID = N121 Mean = 0.07 % Relative Standard Deviation = 6.4 Number of Observations = 21 Blind Sample ID = N120X Mean = 0.27 % Relative Standard Deviation = 3.1 Number of Observations = 21 Blind Sample ID = N119 Mean = 0.06 % Relative Standard Deviation = 5.5 Number of Observations = 18 Blind Sample ID = N118X Mean = 0.22 % Relative Standard Deviation = 2.5 Number of Observations = 18 Blind Sample ID = N117 Mean = 0.04 % Relative Standard Deviation = 9.1 Number of Observations = 35 Blind Sample ID = N116X Mean = 0.22 % Relative Standard Deviation = 2.8 Number of Observations = 35 Blind Sample ID = N115 Mean = 0.11 % Relative Standard Deviation = 3.0 Number of Observations = 35 Blind Sample ID = N114X Mean = 0.11 % Relative Standard Deviation = 4.2 Number of Observations = 36 Blind Sample ID = N113 Mean = 0.14 % Relative Standard Deviation = 4.3 Number of Observations = 34 Blind Sample ID = N112X Mean = 0.31 % Relative Standard Deviation = 3.9 Number of Observations = 33 Blind Sample ID = N111 Mean = 0.54 % Relative Standard Deviation = 89.9 Number of Observations = 3 Blind Sample ID =
The SGPlot Procedure


- Nitrate plus Nitrite (as N), FIL, EPA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00631, MCode: CL047
Dates: 10/22/04 through 10/12/06
Open Data Set

Mean = 0.73 % Relative Standard Deviation = 2.2 Number of Observations = 12 Blind Sample ID = N90 Mean = 0.27 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = N89 Mean = 1.30 % Relative Standard Deviation = 0.0 Number of Observations = 3 Blind Sample ID = N88 Mean = 0.19 % Relative Standard Deviation = 1.1 Number of Observations = 4 Blind Sample ID = N87 Mean = 0.68 % Relative Standard Deviation = 0.7 Number of Observations = 11 Blind Sample ID = N86 Mean = 0.17 % Relative Standard Deviation = 1.0 Number of Observations = 12 Blind Sample ID = N85 Mean = 1.22 % Relative Standard Deviation = 0.9 Number of Observations = 10 Blind Sample ID = N84 Mean = 0.06 % Relative Standard Deviation = 10.2 Number of Observations = 8 Blind Sample ID = N83
The SGPlot Procedure


- Nitrite (as N), FIL, DA -
Percent Relative Standard Deviation
Lab: , PCode: 00613, MCode: DZ001
Dates: 01/09/20 through 07/08/20
Open Data Set

The SGPlot Procedure


- Orthophosphate as P, FIL, COL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00671, MCode: CL053
Dates: 10/12/04 through 06/13/06
Open Data Set

Mean = 0.86 % Relative Standard Deviation = 1.8 Number of Observations = 7 Blind Sample ID = NS16 Mean = 0.17 % Relative Standard Deviation = 4.1 Number of Observations = 45 Blind Sample ID = NS14 Mean = 0.35 % Relative Standard Deviation = 5.4 Number of Observations = 19 Blind Sample ID = NS12 Mean = 0.45 % Relative Standard Deviation = 2.4 Number of Observations = 8 Blind Sample ID = N90 Mean = 0.27 % Relative Standard Deviation = 2.2 Number of Observations = 8 Blind Sample ID = N89 Mean = 1.16 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = N88 Mean = 0.18 % Relative Standard Deviation = 2.2 Number of Observations = 24 Blind Sample ID = N87 Mean = 0.16 % Relative Standard Deviation = 5.3 Number of Observations = 23 Blind Sample ID = N85 Mean = 0.68 % Relative Standard Deviation = 1.7 Number of Observations = 23 Blind Sample ID = N84 Mean = 0.15 % Relative Standard Deviation = 3.7 Number of Observations = 20 Blind Sample ID = N83
The SGPlot Procedure


- Orthophosphate as P, FIL, COL, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00671, MCode: CL057
Dates: 10/06/04 through 06/02/06
Open Data Set

Mean = 0.04 % Relative Standard Deviation = 8.6 Number of Observations = 12 Blind Sample ID = N90X Mean = 0.27 % Relative Standard Deviation = 2.8 Number of Observations = 12 Blind Sample ID = N89 Mean = 0.11 % Relative Standard Deviation = 2.7 Number of Observations = 36 Blind Sample ID = N88X Mean = 0.18 % Relative Standard Deviation = 3.4 Number of Observations = 36 Blind Sample ID = N87 Mean = 0.16 % Relative Standard Deviation = 3.5 Number of Observations = 46 Blind Sample ID = N85 Mean = 0.07 % Relative Standard Deviation = 3.1 Number of Observations = 21 Blind Sample ID = N84X Mean = 0.16 % Relative Standard Deviation = 3.4 Number of Observations = 40 Blind Sample ID = N83
The SGPlot Procedure


- Orthophosphate as P, FIL, DA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00671, MCode: PHM01
Dates: 06/02/06 through 06/10/24
Open Data Set

Mean = 0.47 % Relative Standard Deviation = 4.1 Number of Observations = 95 Blind Sample ID = NS30 Mean = 2.12 % Relative Standard Deviation = 4.8 Number of Observations = 89 Blind Sample ID = NS28 Mean = 0.48 % Relative Standard Deviation = 2.5 Number of Observations = 88 Blind Sample ID = NS26 Mean = 0.50 % Relative Standard Deviation = 3.0 Number of Observations = 94 Blind Sample ID = NS24 Mean = 0.12 % Relative Standard Deviation = 2.6 Number of Observations = 75 Blind Sample ID = NS22 Mean = 0.13 % Relative Standard Deviation = 2.5 Number of Observations = 94 Blind Sample ID = NS20 Mean = 0.26 % Relative Standard Deviation = 3.8 Number of Observations = 92 Blind Sample ID = NS18 Mean = 0.42 % Relative Standard Deviation = 2.8 Number of Observations = 4 Blind Sample ID = NS16X2 Mean = 0.84 % Relative Standard Deviation = 2.7 Number of Observations = 70 Blind Sample ID = NS16 Mean = 0.19 % Relative Standard Deviation = 2.9 Number of Observations = 22 Blind Sample ID = N99 Mean = 0.59 % Relative Standard Deviation = 2.0 Number of Observations = 24 Blind Sample ID = N98 Mean = 0.23 % Relative Standard Deviation = 3.3 Number of Observations = 8 Blind Sample ID = N97 Mean = 0.97 % Relative Standard Deviation = 2.6 Number of Observations = 22 Blind Sample ID = N96 Mean = 0.22 % Relative Standard Deviation = 3.6 Number of Observations = 19 Blind Sample ID = N95 Mean = 0.74 % Relative Standard Deviation = 2.9 Number of Observations = 24 Blind Sample ID = N94 Mean = 1.49 % Relative Standard Deviation = 2.0 Number of Observations = 23 Blind Sample ID = N92 Mean = 0.04 % Relative Standard Deviation = 3.2 Number of Observations = 23 Blind Sample ID = N91 Mean = 0.05 % Relative Standard Deviation = 2.1 Number of Observations = 24 Blind Sample ID = N90X Mean = 0.46 % Relative Standard Deviation = 1.9 Number of Observations = 16 Blind Sample ID = N90 Mean = 0.28 % Relative Standard Deviation = 3.6 Number of Observations = 40 Blind Sample ID = N89 Mean = 0.24 % Relative Standard Deviation = 4.3 Number of Observations = 8 Blind Sample ID = N162 Mean = 0.12 % Relative Standard Deviation = 2.4 Number of Observations = 23 Blind Sample ID = N159 Mean = 0.28 % Relative Standard Deviation = 3.0 Number of Observations = 24 Blind Sample ID = N158 Mean = 0.11 % Relative Standard Deviation = 2.8 Number of Observations = 23 Blind Sample ID = N157 Mean = 0.65 % Relative Standard Deviation = 3.1 Number of Observations = 24 Blind Sample ID = N156 Mean = 0.13 % Relative Standard Deviation = 3.4 Number of Observations = 24 Blind Sample ID = N155 Mean = 0.28 % Relative Standard Deviation = 3.2 Number of Observations = 22 Blind Sample ID = N154 Mean = 0.09 % Relative Standard Deviation = 3.8 Number of Observations = 22 Blind Sample ID = N153 Mean = 0.32 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = N152 Mean = 0.08 % Relative Standard Deviation = 4.0 Number of Observations = 12 Blind Sample ID = N151 Mean = 0.32 % Relative Standard Deviation = 4.8 Number of Observations = 12 Blind Sample ID = N150 Mean = 0.17 % Relative Standard Deviation = 2.9 Number of Observations = 12 Blind Sample ID = N149 Mean = 0.29 % Relative Standard Deviation = 7.1 Number of Observations = 12 Blind Sample ID = N148 Mean = 0.20 % Relative Standard Deviation = 3.4 Number of Observations = 12 Blind Sample ID = N147 Mean = 0.33 % Relative Standard Deviation = 5.4 Number of Observations = 12 Blind Sample ID = N146 Mean = 0.14 % Relative Standard Deviation = 4.2 Number of Observations = 10 Blind Sample ID = N145 Mean = 0.39 % Relative Standard Deviation = 9.0 Number of Observations = 12 Blind Sample ID = N144 Mean = 0.17 % Relative Standard Deviation = 5.1 Number of Observations = 12 Blind Sample ID = N143 Mean = 0.50 % Relative Standard Deviation = 7.0 Number of Observations = 12 Blind Sample ID = N142 Mean = 0.15 % Relative Standard Deviation = 6.0 Number of Observations = 12 Blind Sample ID = N141 Mean = 0.29 % Relative Standard Deviation = 3.9 Number of Observations = 9 Blind Sample ID = N140 Mean = 0.10 % Relative Standard Deviation = 5.0 Number of Observations = 8 Blind Sample ID = N139 Mean = 0.62 % Relative Standard Deviation = 3.5 Number of Observations = 12 Blind Sample ID = N138 Mean = 0.13 % Relative Standard Deviation = 2.5 Number of Observations = 12 Blind Sample ID = N137 Mean = 0.39 % Relative Standard Deviation = 1.6 Number of Observations = 12 Blind Sample ID = N136 Mean = 0.16 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = N135 Mean = 0.27 % Relative Standard Deviation = 1.2 Number of Observations = 12 Blind Sample ID = N134 Mean = 0.09 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = N133 Mean = 0.30 % Relative Standard Deviation = 2.1 Number of Observations = 11 Blind Sample ID = N132 Mean = 0.04 % Relative Standard Deviation = 1.8 Number of Observations = 12 Blind Sample ID = N131 Mean = 0.59 % Relative Standard Deviation = 2.2 Number of Observations = 12 Blind Sample ID = N130 Mean = 0.21 % Relative Standard Deviation = 1.9 Number of Observations = 12 Blind Sample ID = N129 Mean = 0.44 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = N128 Mean = 0.11 % Relative Standard Deviation = 3.1 Number of Observations = 11 Blind Sample ID = N127 Mean = 0.50 % Relative Standard Deviation = 2.2 Number of Observations = 12 Blind Sample ID = N126 Mean = 0.22 % Relative Standard Deviation = 3.3 Number of Observations = 12 Blind Sample ID = N125 Mean = 0.19 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = N124 Mean = 0.27 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = N123 Mean = 0.09 % Relative Standard Deviation = 2.5 Number of Observations = 12 Blind Sample ID = N121 Mean = 0.68 % Relative Standard Deviation = 3.1 Number of Observations = 10 Blind Sample ID = N120 Mean = 0.74 % Relative Standard Deviation = 4.1 Number of Observations = 12 Blind Sample ID = N118 Mean = 0.36 % Relative Standard Deviation = 4.0 Number of Observations = 12 Blind Sample ID = N117 Mean = 0.41 % Relative Standard Deviation = 3.9 Number of Observations = 24 Blind Sample ID = N116 Mean = 0.24 % Relative Standard Deviation = 2.8 Number of Observations = 24 Blind Sample ID = N115 Mean = 1.07 % Relative Standard Deviation = 2.4 Number of Observations = 24 Blind Sample ID = N114 Mean = 1.28 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N112 Mean = 0.28 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = N111 Mean = 0.58 % Relative Standard Deviation = 2.0 Number of Observations = 24 Blind Sample ID = N110 Mean = 0.19 % Relative Standard Deviation = 3.7 Number of Observations = 24 Blind Sample ID = N109 Mean = 0.55 % Relative Standard Deviation = 2.4 Number of Observations = 24 Blind Sample ID = N108 Mean = 1.24 % Relative Standard Deviation = 2.8 Number of Observations = 24 Blind Sample ID = N106 Mean = 0.23 % Relative Standard Deviation = 4.8 Number of Observations = 24 Blind Sample ID = N105 Mean = 0.71 % Relative Standard Deviation = 2.3 Number of Observations = 23 Blind Sample ID = N104 Mean = 0.29 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = N103 Mean = 1.26 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = N102 Mean = 0.34 % Relative Standard Deviation = 3.9 Number of Observations = 24 Blind Sample ID = N101 Mean = 0.65 % Relative Standard Deviation = 2.1 Number of Observations = 22 Blind Sample ID = N100 Mean = 0.17 % Relative Standard Deviation = 78.9 Number of Observations = 30 Blind Sample ID =
The SGPlot Procedure


- Phosphorus (as P), UNF, ASF, Kjeldahl -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00665, MCode: KJ009
Dates: 10/12/04 through 07/09/24
Open Data Set

Mean = 1.96 % Relative Standard Deviation = 1.7 Number of Observations = 50 Blind Sample ID = NS31 Mean = 2.23 % Relative Standard Deviation = 2.8 Number of Observations = 75 Blind Sample ID = NS29 Mean = 2.60 % Relative Standard Deviation = 1.3 Number of Observations = 71 Blind Sample ID = NS27 Mean = 3.72 % Relative Standard Deviation = 1.7 Number of Observations = 84 Blind Sample ID = NS25 Mean = 0.88 % Relative Standard Deviation = 1.8 Number of Observations = 66 Blind Sample ID = NS23 Mean = 0.41 % Relative Standard Deviation = 2.6 Number of Observations = 84 Blind Sample ID = NS21 Mean = 0.39 % Relative Standard Deviation = 2.4 Number of Observations = 92 Blind Sample ID = NS19 Mean = 0.44 % Relative Standard Deviation = 2.3 Number of Observations = 4 Blind Sample ID = NS17X2 Mean = 0.88 % Relative Standard Deviation = 4.0 Number of Observations = 71 Blind Sample ID = NS17 Mean = 0.23 % Relative Standard Deviation = 3.3 Number of Observations = 51 Blind Sample ID = NS15 Mean = 0.51 % Relative Standard Deviation = 1.9 Number of Observations = 20 Blind Sample ID = NS13 Mean = 0.28 % Relative Standard Deviation = 2.9 Number of Observations = 22 Blind Sample ID = N99 Mean = 0.58 % Relative Standard Deviation = 1.5 Number of Observations = 24 Blind Sample ID = N98 Mean = 0.40 % Relative Standard Deviation = 1.8 Number of Observations = 23 Blind Sample ID = N97 Mean = 0.97 % Relative Standard Deviation = 0.9 Number of Observations = 22 Blind Sample ID = N96 Mean = 0.22 % Relative Standard Deviation = 2.6 Number of Observations = 19 Blind Sample ID = N95 Mean = 0.74 % Relative Standard Deviation = 1.7 Number of Observations = 24 Blind Sample ID = N94 Mean = 0.18 % Relative Standard Deviation = 4.0 Number of Observations = 24 Blind Sample ID = N93 Mean = 1.48 % Relative Standard Deviation = 3.3 Number of Observations = 23 Blind Sample ID = N92 Mean = 0.04 % Relative Standard Deviation = 29.6 Number of Observations = 21 Blind Sample ID = N91 Mean = 0.46 % Relative Standard Deviation = 3.2 Number of Observations = 24 Blind Sample ID = N90 Mean = 0.28 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N89 Mean = 1.15 % Relative Standard Deviation = 1.4 Number of Observations = 24 Blind Sample ID = N88 Mean = 0.19 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = N87 Mean = 1.31 % Relative Standard Deviation = 1.3 Number of Observations = 23 Blind Sample ID = N86 Mean = 0.17 % Relative Standard Deviation = 2.7 Number of Observations = 23 Blind Sample ID = N85 Mean = 0.70 % Relative Standard Deviation = 2.4 Number of Observations = 23 Blind Sample ID = N84 Mean = 0.15 % Relative Standard Deviation = 5.9 Number of Observations = 20 Blind Sample ID = N83 Mean = 0.27 % Relative Standard Deviation = 4.3 Number of Observations = 8 Blind Sample ID = N162 Mean = 0.36 % Relative Standard Deviation = 4.4 Number of Observations = 19 Blind Sample ID = N160 Mean = 0.12 % Relative Standard Deviation = 10.3 Number of Observations = 20 Blind Sample ID = N159 Mean = 0.27 % Relative Standard Deviation = 5.0 Number of Observations = 24 Blind Sample ID = N158 Mean = 0.11 % Relative Standard Deviation = 7.9 Number of Observations = 23 Blind Sample ID = N157 Mean = 0.64 % Relative Standard Deviation = 4.5 Number of Observations = 24 Blind Sample ID = N156 Mean = 0.13 % Relative Standard Deviation = 8.0 Number of Observations = 24 Blind Sample ID = N155 Mean = 0.28 % Relative Standard Deviation = 6.0 Number of Observations = 22 Blind Sample ID = N154 Mean = 0.09 % Relative Standard Deviation = 9.6 Number of Observations = 22 Blind Sample ID = N153 Mean = 0.30 % Relative Standard Deviation = 3.7 Number of Observations = 12 Blind Sample ID = N152 Mean = 0.08 % Relative Standard Deviation = 13.9 Number of Observations = 12 Blind Sample ID = N151 Mean = 0.44 % Relative Standard Deviation = 2.3 Number of Observations = 12 Blind Sample ID = N150 Mean = 0.17 % Relative Standard Deviation = 6.9 Number of Observations = 12 Blind Sample ID = N149 Mean = 0.27 % Relative Standard Deviation = 2.7 Number of Observations = 12 Blind Sample ID = N148 Mean = 0.19 % Relative Standard Deviation = 4.1 Number of Observations = 12 Blind Sample ID = N147 Mean = 0.32 % Relative Standard Deviation = 2.8 Number of Observations = 12 Blind Sample ID = N146 Mean = 0.12 % Relative Standard Deviation = 5.8 Number of Observations = 11 Blind Sample ID = N145 Mean = 0.38 % Relative Standard Deviation = 3.8 Number of Observations = 12 Blind Sample ID = N144 Mean = 0.17 % Relative Standard Deviation = 6.9 Number of Observations = 12 Blind Sample ID = N143 Mean = 0.63 % Relative Standard Deviation = 1.8 Number of Observations = 12 Blind Sample ID = N142 Mean = 0.16 % Relative Standard Deviation = 7.3 Number of Observations = 12 Blind Sample ID = N141 Mean = 0.30 % Relative Standard Deviation = 2.9 Number of Observations = 9 Blind Sample ID = N140 Mean = 0.12 % Relative Standard Deviation = 5.1 Number of Observations = 8 Blind Sample ID = N139 Mean = 0.62 % Relative Standard Deviation = 1.2 Number of Observations = 12 Blind Sample ID = N138 Mean = 0.13 % Relative Standard Deviation = 5.5 Number of Observations = 12 Blind Sample ID = N137 Mean = 0.38 % Relative Standard Deviation = 3.0 Number of Observations = 12 Blind Sample ID = N136 Mean = 0.16 % Relative Standard Deviation = 3.2 Number of Observations = 11 Blind Sample ID = N135 Mean = 0.27 % Relative Standard Deviation = 2.9 Number of Observations = 12 Blind Sample ID = N134 Mean = 0.11 % Relative Standard Deviation = 3.8 Number of Observations = 12 Blind Sample ID = N133 Mean = 0.29 % Relative Standard Deviation = 2.1 Number of Observations = 11 Blind Sample ID = N132 Mean = 0.06 % Relative Standard Deviation = 5.0 Number of Observations = 12 Blind Sample ID = N131 Mean = 0.56 % Relative Standard Deviation = 1.3 Number of Observations = 12 Blind Sample ID = N130 Mean = 0.21 % Relative Standard Deviation = 2.9 Number of Observations = 12 Blind Sample ID = N129 Mean = 0.42 % Relative Standard Deviation = 1.9 Number of Observations = 12 Blind Sample ID = N128 Mean = 0.14 % Relative Standard Deviation = 6.0 Number of Observations = 11 Blind Sample ID = N127 Mean = 0.48 % Relative Standard Deviation = 3.5 Number of Observations = 12 Blind Sample ID = N126 Mean = 0.23 % Relative Standard Deviation = 4.0 Number of Observations = 12 Blind Sample ID = N125 Mean = 0.19 % Relative Standard Deviation = 4.4 Number of Observations = 12 Blind Sample ID = N124 Mean = 0.27 % Relative Standard Deviation = 3.0 Number of Observations = 12 Blind Sample ID = N123 Mean = 0.56 % Relative Standard Deviation = 3.1 Number of Observations = 12 Blind Sample ID = N122 Mean = 0.16 % Relative Standard Deviation = 5.0 Number of Observations = 12 Blind Sample ID = N121 Mean = 0.64 % Relative Standard Deviation = 2.3 Number of Observations = 10 Blind Sample ID = N120 Mean = 0.22 % Relative Standard Deviation = 2.3 Number of Observations = 11 Blind Sample ID = N119 Mean = 0.88 % Relative Standard Deviation = 1.5 Number of Observations = 12 Blind Sample ID = N118 Mean = 0.38 % Relative Standard Deviation = 1.9 Number of Observations = 12 Blind Sample ID = N117 Mean = 0.40 % Relative Standard Deviation = 1.6 Number of Observations = 24 Blind Sample ID = N116 Mean = 0.24 % Relative Standard Deviation = 2.2 Number of Observations = 24 Blind Sample ID = N115 Mean = 1.06 % Relative Standard Deviation = 1.4 Number of Observations = 24 Blind Sample ID = N114 Mean = 0.25 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = N113 Mean = 1.25 % Relative Standard Deviation = 1.3 Number of Observations = 24 Blind Sample ID = N112 Mean = 0.27 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = N111 Mean = 0.57 % Relative Standard Deviation = 2.4 Number of Observations = 24 Blind Sample ID = N110 Mean = 0.27 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = N109 Mean = 0.52 % Relative Standard Deviation = 2.4 Number of Observations = 24 Blind Sample ID = N108 Mean = 0.16 % Relative Standard Deviation = 4.1 Number of Observations = 24 Blind Sample ID = N107 Mean = 1.30 % Relative Standard Deviation = 2.6 Number of Observations = 24 Blind Sample ID = N106 Mean = 0.25 % Relative Standard Deviation = 2.6 Number of Observations = 24 Blind Sample ID = N105 Mean = 0.66 % Relative Standard Deviation = 2.9 Number of Observations = 24 Blind Sample ID = N104 Mean = 0.29 % Relative Standard Deviation = 3.6 Number of Observations = 24 Blind Sample ID = N103 Mean = 1.21 % Relative Standard Deviation = 1.0 Number of Observations = 24 Blind Sample ID = N102 Mean = 0.35 % Relative Standard Deviation = 2.0 Number of Observations = 24 Blind Sample ID = N101 Mean = 0.62 % Relative Standard Deviation = 1.2 Number of Observations = 22 Blind Sample ID = N100
The SGPlot Procedure


- Phosphorus (as P), UNF, CFA, ACD-P, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00665, MCode: CL021
Dates: 10/21/04 through 07/11/24
Open Data Set

Mean = 0.29 % Relative Standard Deviation = 1.3 Number of Observations = 32 Blind Sample ID = N99 Mean = 0.06 % Relative Standard Deviation = 2.1 Number of Observations = 36 Blind Sample ID = N98X Mean = 0.13 % Relative Standard Deviation = 5.3 Number of Observations = 8 Blind Sample ID = N96Xc Mean = 0.10 % Relative Standard Deviation = 2.2 Number of Observations = 26 Blind Sample ID = N96X Mean = 0.18 % Relative Standard Deviation = 1.3 Number of Observations = 4 Blind Sample ID = N95c Mean = 0.23 % Relative Standard Deviation = 3.4 Number of Observations = 31 Blind Sample ID = N95 Mean = 0.08 % Relative Standard Deviation = 2.3 Number of Observations = 35 Blind Sample ID = N94X Mean = 0.19 % Relative Standard Deviation = 1.4 Number of Observations = 35 Blind Sample ID = N93 Mean = 0.15 % Relative Standard Deviation = 2.5 Number of Observations = 35 Blind Sample ID = N92X Mean = 0.04 % Relative Standard Deviation = 4.3 Number of Observations = 34 Blind Sample ID = N91 Mean = 0.05 % Relative Standard Deviation = 5.4 Number of Observations = 36 Blind Sample ID = N90X Mean = 0.12 % Relative Standard Deviation = 3.1 Number of Observations = 36 Blind Sample ID = N88X Mean = 0.19 % Relative Standard Deviation = 1.9 Number of Observations = 35 Blind Sample ID = N87 Mean = 0.13 % Relative Standard Deviation = 2.0 Number of Observations = 22 Blind Sample ID = N86X Mean = 0.18 % Relative Standard Deviation = 2.5 Number of Observations = 46 Blind Sample ID = N85 Mean = 0.07 % Relative Standard Deviation = 2.1 Number of Observations = 21 Blind Sample ID = N84X Mean = 0.16 % Relative Standard Deviation = 2.0 Number of Observations = 40 Blind Sample ID = N83 Mean = 0.03 % Relative Standard Deviation = 4.5 Number of Observations = 9 Blind Sample ID = N162X Mean = 0.13 % Relative Standard Deviation = 2.2 Number of Observations = 6 Blind Sample ID = N161 Mean = 0.04 % Relative Standard Deviation = 6.0 Number of Observations = 8 Blind Sample ID = N160X Mean = 0.13 % Relative Standard Deviation = 2.6 Number of Observations = 7 Blind Sample ID = N159 Mean = 0.03 % Relative Standard Deviation = 5.3 Number of Observations = 18 Blind Sample ID = N158X Mean = 0.11 % Relative Standard Deviation = 2.5 Number of Observations = 18 Blind Sample ID = N157 Mean = 0.07 % Relative Standard Deviation = 3.8 Number of Observations = 15 Blind Sample ID = N156X Mean = 0.14 % Relative Standard Deviation = 1.7 Number of Observations = 15 Blind Sample ID = N155 Mean = 0.03 % Relative Standard Deviation = 3.6 Number of Observations = 17 Blind Sample ID = N154X Mean = 0.10 % Relative Standard Deviation = 1.5 Number of Observations = 18 Blind Sample ID = N153 Mean = 0.03 % Relative Standard Deviation = 2.6 Number of Observations = 13 Blind Sample ID = N152X Mean = 0.09 % Relative Standard Deviation = 3.2 Number of Observations = 15 Blind Sample ID = N151 Mean = 0.04 % Relative Standard Deviation = 4.4 Number of Observations = 18 Blind Sample ID = N150X Mean = 0.19 % Relative Standard Deviation = 2.5 Number of Observations = 18 Blind Sample ID = N149 Mean = 0.03 % Relative Standard Deviation = 5.2 Number of Observations = 15 Blind Sample ID = N148X Mean = 0.20 % Relative Standard Deviation = 2.3 Number of Observations = 15 Blind Sample ID = N147 Mean = 0.03 % Relative Standard Deviation = 2.9 Number of Observations = 17 Blind Sample ID = N146X Mean = 0.14 % Relative Standard Deviation = 1.8 Number of Observations = 18 Blind Sample ID = N145 Mean = 0.04 % Relative Standard Deviation = 2.6 Number of Observations = 15 Blind Sample ID = N144X Mean = 0.19 % Relative Standard Deviation = 1.9 Number of Observations = 15 Blind Sample ID = N143 Mean = 0.06 % Relative Standard Deviation = 3.9 Number of Observations = 18 Blind Sample ID = N142X Mean = 0.18 % Relative Standard Deviation = 1.5 Number of Observations = 18 Blind Sample ID = N141 Mean = 0.03 % Relative Standard Deviation = 3.4 Number of Observations = 12 Blind Sample ID = N140X Mean = 0.13 % Relative Standard Deviation = 2.1 Number of Observations = 12 Blind Sample ID = N139 Mean = 0.06 % Relative Standard Deviation = 2.8 Number of Observations = 18 Blind Sample ID = N138X Mean = 0.13 % Relative Standard Deviation = 3.1 Number of Observations = 18 Blind Sample ID = N137 Mean = 0.04 % Relative Standard Deviation = 2.7 Number of Observations = 15 Blind Sample ID = N136X Mean = 0.17 % Relative Standard Deviation = 1.7 Number of Observations = 15 Blind Sample ID = N135 Mean = 0.03 % Relative Standard Deviation = 4.3 Number of Observations = 24 Blind Sample ID = N134X Mean = 0.12 % Relative Standard Deviation = 3.8 Number of Observations = 24 Blind Sample ID = N133 Mean = 0.03 % Relative Standard Deviation = 5.9 Number of Observations = 21 Blind Sample ID = N132X Mean = 0.07 % Relative Standard Deviation = 3.3 Number of Observations = 21 Blind Sample ID = N131 Mean = 0.06 % Relative Standard Deviation = 4.9 Number of Observations = 23 Blind Sample ID = N130X Mean = 0.23 % Relative Standard Deviation = 5.0 Number of Observations = 24 Blind Sample ID = N129 Mean = 0.04 % Relative Standard Deviation = 2.8 Number of Observations = 22 Blind Sample ID = N128X Mean = 0.15 % Relative Standard Deviation = 1.5 Number of Observations = 23 Blind Sample ID = N127 Mean = 0.05 % Relative Standard Deviation = 2.6 Number of Observations = 24 Blind Sample ID = N126X Mean = 0.25 % Relative Standard Deviation = 3.3 Number of Observations = 24 Blind Sample ID = N125 Mean = 0.02 % Relative Standard Deviation = 4.8 Number of Observations = 24 Blind Sample ID = N124X Mean = 0.28 % Relative Standard Deviation = 2.0 Number of Observations = 24 Blind Sample ID = N123 Mean = 0.06 % Relative Standard Deviation = 3.5 Number of Observations = 24 Blind Sample ID = N122X Mean = 0.17 % Relative Standard Deviation = 4.2 Number of Observations = 24 Blind Sample ID = N121 Mean = 0.07 % Relative Standard Deviation = 6.5 Number of Observations = 21 Blind Sample ID = N120X Mean = 0.24 % Relative Standard Deviation = 4.0 Number of Observations = 20 Blind Sample ID = N119 Mean = 0.09 % Relative Standard Deviation = 3.1 Number of Observations = 18 Blind Sample ID = N118X Mean = 0.40 % Relative Standard Deviation = 2.9 Number of Observations = 18 Blind Sample ID = N117 Mean = 0.04 % Relative Standard Deviation = 2.6 Number of Observations = 36 Blind Sample ID = N116X Mean = 0.24 % Relative Standard Deviation = 2.6 Number of Observations = 36 Blind Sample ID = N115 Mean = 0.11 % Relative Standard Deviation = 1.6 Number of Observations = 36 Blind Sample ID = N114X Mean = 0.26 % Relative Standard Deviation = 2.8 Number of Observations = 36 Blind Sample ID = N113 Mean = 0.13 % Relative Standard Deviation = 2.6 Number of Observations = 36 Blind Sample ID = N112X Mean = 0.28 % Relative Standard Deviation = 3.8 Number of Observations = 36 Blind Sample ID = N111 Mean = 0.06 % Relative Standard Deviation = 2.5 Number of Observations = 36 Blind Sample ID = N110X Mean = 0.27 % Relative Standard Deviation = 3.5 Number of Observations = 36 Blind Sample ID = N109 Mean = 0.05 % Relative Standard Deviation = 5.0 Number of Observations = 36 Blind Sample ID = N108X Mean = 0.17 % Relative Standard Deviation = 1.5 Number of Observations = 36 Blind Sample ID = N107 Mean = 0.13 % Relative Standard Deviation = 1.7 Number of Observations = 36 Blind Sample ID = N106X Mean = 0.26 % Relative Standard Deviation = 3.4 Number of Observations = 36 Blind Sample ID = N105 Mean = 0.07 % Relative Standard Deviation = 1.7 Number of Observations = 36 Blind Sample ID = N104X Mean = 0.30 % Relative Standard Deviation = 4.1 Number of Observations = 36 Blind Sample ID = N103 Mean = 0.12 % Relative Standard Deviation = 1.8 Number of Observations = 36 Blind Sample ID = N102X Mean = 0.35 % Relative Standard Deviation = 2.5 Number of Observations = 31 Blind Sample ID = N101 Mean = 0.07 % Relative Standard Deviation = 2.5 Number of Observations = 35 Blind Sample ID = N100X
The SGPlot Procedure


- Phosphorus (as P), UNF, CFA, ALK-P, ACD -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00665, MCode: AKP01
Dates: 10/13/04 through 05/24/24
Open Data Set

Mean = 0.23 % Relative Standard Deviation = 4.5 Number of Observations = 27 Blind Sample ID = NS15 Mean = 0.51 % Relative Standard Deviation = 2.7 Number of Observations = 20 Blind Sample ID = NS13 Mean = 0.28 % Relative Standard Deviation = 3.4 Number of Observations = 25 Blind Sample ID = N99 Mean = 0.58 % Relative Standard Deviation = 2.9 Number of Observations = 24 Blind Sample ID = N98 Mean = 0.40 % Relative Standard Deviation = 2.7 Number of Observations = 56 Blind Sample ID = N97 Mean = 0.97 % Relative Standard Deviation = 1.9 Number of Observations = 22 Blind Sample ID = N96 Mean = 0.18 % Relative Standard Deviation = 0.9 Number of Observations = 4 Blind Sample ID = N95c Mean = 0.23 % Relative Standard Deviation = 3.0 Number of Observations = 20 Blind Sample ID = N95 Mean = 0.75 % Relative Standard Deviation = 1.7 Number of Observations = 20 Blind Sample ID = N94 Mean = 0.19 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = N93 Mean = 1.50 % Relative Standard Deviation = 2.3 Number of Observations = 22 Blind Sample ID = N92 Mean = 0.04 % Relative Standard Deviation = 18.1 Number of Observations = 23 Blind Sample ID = N91 Mean = 0.45 % Relative Standard Deviation = 3.4 Number of Observations = 22 Blind Sample ID = N90 Mean = 0.28 % Relative Standard Deviation = 4.2 Number of Observations = 58 Blind Sample ID = N89 Mean = 1.13 % Relative Standard Deviation = 2.6 Number of Observations = 24 Blind Sample ID = N88 Mean = 0.18 % Relative Standard Deviation = 3.1 Number of Observations = 25 Blind Sample ID = N87 Mean = 1.31 % Relative Standard Deviation = 1.5 Number of Observations = 23 Blind Sample ID = N86 Mean = 0.18 % Relative Standard Deviation = 2.7 Number of Observations = 19 Blind Sample ID = N85 Mean = 0.69 % Relative Standard Deviation = 3.2 Number of Observations = 22 Blind Sample ID = N84 Mean = 0.15 % Relative Standard Deviation = 3.8 Number of Observations = 18 Blind Sample ID = N83 Mean = 0.28 % Relative Standard Deviation = 2.2 Number of Observations = 5 Blind Sample ID = N158 Mean = 0.11 % Relative Standard Deviation = 2.4 Number of Observations = 5 Blind Sample ID = N157 Mean = 0.67 % Relative Standard Deviation = 3.3 Number of Observations = 6 Blind Sample ID = N156 Mean = 0.14 % Relative Standard Deviation = 4.1 Number of Observations = 6 Blind Sample ID = N155 Mean = 0.28 % Relative Standard Deviation = 3.9 Number of Observations = 6 Blind Sample ID = N154 Mean = 0.10 % Relative Standard Deviation = 6.2 Number of Observations = 6 Blind Sample ID = N153 Mean = 0.32 % Relative Standard Deviation = 1.2 Number of Observations = 6 Blind Sample ID = N152 Mean = 0.09 % Relative Standard Deviation = 3.0 Number of Observations = 6 Blind Sample ID = N151 Mean = 0.45 % Relative Standard Deviation = 1.7 Number of Observations = 6 Blind Sample ID = N150 Mean = 0.18 % Relative Standard Deviation = 4.4 Number of Observations = 6 Blind Sample ID = N149 Mean = 0.32 % Relative Standard Deviation = 5.2 Number of Observations = 6 Blind Sample ID = N148 Mean = 0.21 % Relative Standard Deviation = 5.0 Number of Observations = 6 Blind Sample ID = N147 Mean = 0.34 % Relative Standard Deviation = 2.5 Number of Observations = 6 Blind Sample ID = N146 Mean = 0.14 % Relative Standard Deviation = 3.2 Number of Observations = 6 Blind Sample ID = N145 Mean = 0.41 % Relative Standard Deviation = 2.0 Number of Observations = 6 Blind Sample ID = N144 Mean = 0.18 % Relative Standard Deviation = 1.9 Number of Observations = 6 Blind Sample ID = N143 Mean = 0.62 % Relative Standard Deviation = 4.1 Number of Observations = 6 Blind Sample ID = N142 Mean = 0.17 % Relative Standard Deviation = 2.6 Number of Observations = 6 Blind Sample ID = N141 Mean = 0.29 % Relative Standard Deviation = 4.1 Number of Observations = 4 Blind Sample ID = N140 Mean = 0.12 % Relative Standard Deviation = 2.9 Number of Observations = 4 Blind Sample ID = N139 Mean = 0.59 % Relative Standard Deviation = 3.1 Number of Observations = 6 Blind Sample ID = N138 Mean = 0.13 % Relative Standard Deviation = 1.4 Number of Observations = 6 Blind Sample ID = N137 Mean = 0.39 % Relative Standard Deviation = 3.5 Number of Observations = 6 Blind Sample ID = N136 Mean = 0.17 % Relative Standard Deviation = 2.4 Number of Observations = 6 Blind Sample ID = N135 Mean = 0.27 % Relative Standard Deviation = 2.8 Number of Observations = 6 Blind Sample ID = N134 Mean = 0.11 % Relative Standard Deviation = 3.0 Number of Observations = 6 Blind Sample ID = N133 Mean = 0.30 % Relative Standard Deviation = 3.9 Number of Observations = 6 Blind Sample ID = N132 Mean = 0.07 % Relative Standard Deviation = 2.4 Number of Observations = 6 Blind Sample ID = N131 Mean = 0.58 % Relative Standard Deviation = 2.7 Number of Observations = 6 Blind Sample ID = N130 Mean = 0.22 % Relative Standard Deviation = 1.8 Number of Observations = 6 Blind Sample ID = N129 Mean = 0.42 % Relative Standard Deviation = 2.8 Number of Observations = 6 Blind Sample ID = N128 Mean = 0.14 % Relative Standard Deviation = 5.9 Number of Observations = 6 Blind Sample ID = N127 Mean = 0.51 % Relative Standard Deviation = 3.1 Number of Observations = 6 Blind Sample ID = N126 Mean = 0.25 % Relative Standard Deviation = 4.6 Number of Observations = 6 Blind Sample ID = N125 Mean = 0.19 % Relative Standard Deviation = 3.7 Number of Observations = 6 Blind Sample ID = N124 Mean = 0.27 % Relative Standard Deviation = 2.8 Number of Observations = 6 Blind Sample ID = N123 Mean = 0.57 % Relative Standard Deviation = 1.6 Number of Observations = 6 Blind Sample ID = N122 Mean = 0.16 % Relative Standard Deviation = 8.4 Number of Observations = 6 Blind Sample ID = N121 Mean = 0.66 % Relative Standard Deviation = 3.0 Number of Observations = 5 Blind Sample ID = N120 Mean = 0.23 % Relative Standard Deviation = 2.5 Number of Observations = 6 Blind Sample ID = N119 Mean = 0.87 % Relative Standard Deviation = 1.1 Number of Observations = 6 Blind Sample ID = N118 Mean = 0.38 % Relative Standard Deviation = 3.4 Number of Observations = 6 Blind Sample ID = N117 Mean = 0.41 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = N116 Mean = 0.24 % Relative Standard Deviation = 3.1 Number of Observations = 12 Blind Sample ID = N115 Mean = 1.08 % Relative Standard Deviation = 2.2 Number of Observations = 9 Blind Sample ID = N114 Mean = 0.25 % Relative Standard Deviation = 1.8 Number of Observations = 12 Blind Sample ID = N113 Mean = 0.57 % Relative Standard Deviation = 1.8 Number of Observations = 16 Blind Sample ID = N110 Mean = 0.27 % Relative Standard Deviation = 3.1 Number of Observations = 17 Blind Sample ID = N109 Mean = 0.53 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = N108 Mean = 0.16 % Relative Standard Deviation = 2.9 Number of Observations = 24 Blind Sample ID = N107 Mean = 1.31 % Relative Standard Deviation = 2.1 Number of Observations = 24 Blind Sample ID = N106 Mean = 0.25 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N105 Mean = 0.67 % Relative Standard Deviation = 2.4 Number of Observations = 24 Blind Sample ID = N104 Mean = 0.29 % Relative Standard Deviation = 2.6 Number of Observations = 24 Blind Sample ID = N103 Mean = 1.22 % Relative Standard Deviation = 2.2 Number of Observations = 23 Blind Sample ID = N102 Mean = 0.34 % Relative Standard Deviation = 4.0 Number of Observations = 25 Blind Sample ID = N101 Mean = 0.62 % Relative Standard Deviation = 3.3 Number of Observations = 22 Blind Sample ID = N100
The SGPlot Procedure


- Phosphorus as P, FIL, ASF, Kjeldahl -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00666, MCode: KJ005
Dates: 10/13/04 through 06/28/24
Open Data Set

Mean = 1.96 % Relative Standard Deviation = 1.7 Number of Observations = 49 Blind Sample ID = NS31 Mean = 2.25 % Relative Standard Deviation = 3.5 Number of Observations = 74 Blind Sample ID = NS29 Mean = 2.62 % Relative Standard Deviation = 2.0 Number of Observations = 72 Blind Sample ID = NS27 Mean = 3.74 % Relative Standard Deviation = 2.0 Number of Observations = 84 Blind Sample ID = NS25 Mean = 0.90 % Relative Standard Deviation = 1.6 Number of Observations = 66 Blind Sample ID = NS23 Mean = 0.41 % Relative Standard Deviation = 2.1 Number of Observations = 84 Blind Sample ID = NS21 Mean = 0.39 % Relative Standard Deviation = 2.5 Number of Observations = 92 Blind Sample ID = NS19 Mean = 0.44 % Relative Standard Deviation = 3.9 Number of Observations = 4 Blind Sample ID = NS17X2 Mean = 0.89 % Relative Standard Deviation = 3.7 Number of Observations = 71 Blind Sample ID = NS17 Mean = 0.23 % Relative Standard Deviation = 4.0 Number of Observations = 51 Blind Sample ID = NS15 Mean = 0.51 % Relative Standard Deviation = 1.7 Number of Observations = 20 Blind Sample ID = NS13 Mean = 0.28 % Relative Standard Deviation = 2.9 Number of Observations = 22 Blind Sample ID = N99 Mean = 0.58 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N98 Mean = 0.40 % Relative Standard Deviation = 2.5 Number of Observations = 23 Blind Sample ID = N97 Mean = 0.98 % Relative Standard Deviation = 1.2 Number of Observations = 22 Blind Sample ID = N96 Mean = 0.23 % Relative Standard Deviation = 2.7 Number of Observations = 19 Blind Sample ID = N95 Mean = 0.74 % Relative Standard Deviation = 1.5 Number of Observations = 24 Blind Sample ID = N94 Mean = 0.19 % Relative Standard Deviation = 3.7 Number of Observations = 24 Blind Sample ID = N93 Mean = 1.48 % Relative Standard Deviation = 4.6 Number of Observations = 23 Blind Sample ID = N92 Mean = 0.04 % Relative Standard Deviation = 19.0 Number of Observations = 22 Blind Sample ID = N91 Mean = 0.46 % Relative Standard Deviation = 2.6 Number of Observations = 24 Blind Sample ID = N90 Mean = 0.28 % Relative Standard Deviation = 2.1 Number of Observations = 24 Blind Sample ID = N89 Mean = 1.15 % Relative Standard Deviation = 1.2 Number of Observations = 24 Blind Sample ID = N88 Mean = 0.19 % Relative Standard Deviation = 3.2 Number of Observations = 24 Blind Sample ID = N87 Mean = 1.32 % Relative Standard Deviation = 1.2 Number of Observations = 23 Blind Sample ID = N86 Mean = 0.18 % Relative Standard Deviation = 3.8 Number of Observations = 23 Blind Sample ID = N85 Mean = 0.70 % Relative Standard Deviation = 1.8 Number of Observations = 23 Blind Sample ID = N84 Mean = 0.15 % Relative Standard Deviation = 3.5 Number of Observations = 20 Blind Sample ID = N83 Mean = 0.28 % Relative Standard Deviation = 4.3 Number of Observations = 8 Blind Sample ID = N162 Mean = 0.37 % Relative Standard Deviation = 3.8 Number of Observations = 23 Blind Sample ID = N160 Mean = 0.12 % Relative Standard Deviation = 7.6 Number of Observations = 23 Blind Sample ID = N159 Mean = 0.27 % Relative Standard Deviation = 3.8 Number of Observations = 24 Blind Sample ID = N158 Mean = 0.12 % Relative Standard Deviation = 10.0 Number of Observations = 23 Blind Sample ID = N157 Mean = 0.65 % Relative Standard Deviation = 3.8 Number of Observations = 24 Blind Sample ID = N156 Mean = 0.13 % Relative Standard Deviation = 5.0 Number of Observations = 24 Blind Sample ID = N155 Mean = 0.28 % Relative Standard Deviation = 5.6 Number of Observations = 21 Blind Sample ID = N154 Mean = 0.09 % Relative Standard Deviation = 8.4 Number of Observations = 21 Blind Sample ID = N153 Mean = 0.31 % Relative Standard Deviation = 5.3 Number of Observations = 12 Blind Sample ID = N152 Mean = 0.08 % Relative Standard Deviation = 9.2 Number of Observations = 11 Blind Sample ID = N151 Mean = 0.43 % Relative Standard Deviation = 3.7 Number of Observations = 12 Blind Sample ID = N150 Mean = 0.17 % Relative Standard Deviation = 3.4 Number of Observations = 12 Blind Sample ID = N149 Mean = 0.28 % Relative Standard Deviation = 3.3 Number of Observations = 12 Blind Sample ID = N148 Mean = 0.18 % Relative Standard Deviation = 4.6 Number of Observations = 12 Blind Sample ID = N147 Mean = 0.32 % Relative Standard Deviation = 5.3 Number of Observations = 12 Blind Sample ID = N146 Mean = 0.12 % Relative Standard Deviation = 4.5 Number of Observations = 11 Blind Sample ID = N145 Mean = 0.39 % Relative Standard Deviation = 2.7 Number of Observations = 12 Blind Sample ID = N144 Mean = 0.17 % Relative Standard Deviation = 3.9 Number of Observations = 12 Blind Sample ID = N143 Mean = 0.62 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = N142 Mean = 0.16 % Relative Standard Deviation = 6.1 Number of Observations = 12 Blind Sample ID = N141 Mean = 0.29 % Relative Standard Deviation = 2.1 Number of Observations = 9 Blind Sample ID = N140 Mean = 0.12 % Relative Standard Deviation = 8.5 Number of Observations = 8 Blind Sample ID = N139 Mean = 0.61 % Relative Standard Deviation = 1.7 Number of Observations = 12 Blind Sample ID = N138 Mean = 0.13 % Relative Standard Deviation = 3.7 Number of Observations = 12 Blind Sample ID = N137 Mean = 0.38 % Relative Standard Deviation = 3.5 Number of Observations = 12 Blind Sample ID = N136 Mean = 0.16 % Relative Standard Deviation = 5.5 Number of Observations = 12 Blind Sample ID = N135 Mean = 0.27 % Relative Standard Deviation = 2.3 Number of Observations = 12 Blind Sample ID = N134 Mean = 0.11 % Relative Standard Deviation = 6.5 Number of Observations = 12 Blind Sample ID = N133 Mean = 0.29 % Relative Standard Deviation = 3.0 Number of Observations = 11 Blind Sample ID = N132 Mean = 0.06 % Relative Standard Deviation = 8.9 Number of Observations = 12 Blind Sample ID = N131 Mean = 0.56 % Relative Standard Deviation = 1.0 Number of Observations = 12 Blind Sample ID = N130 Mean = 0.21 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = N129 Mean = 0.42 % Relative Standard Deviation = 1.7 Number of Observations = 12 Blind Sample ID = N128 Mean = 0.14 % Relative Standard Deviation = 5.8 Number of Observations = 11 Blind Sample ID = N127 Mean = 0.48 % Relative Standard Deviation = 3.8 Number of Observations = 12 Blind Sample ID = N126 Mean = 0.23 % Relative Standard Deviation = 4.3 Number of Observations = 12 Blind Sample ID = N125 Mean = 0.19 % Relative Standard Deviation = 3.2 Number of Observations = 12 Blind Sample ID = N124 Mean = 0.26 % Relative Standard Deviation = 2.8 Number of Observations = 12 Blind Sample ID = N123 Mean = 0.56 % Relative Standard Deviation = 1.9 Number of Observations = 12 Blind Sample ID = N122 Mean = 0.16 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = N121 Mean = 0.65 % Relative Standard Deviation = 2.0 Number of Observations = 10 Blind Sample ID = N120 Mean = 0.22 % Relative Standard Deviation = 3.0 Number of Observations = 11 Blind Sample ID = N119 Mean = 0.87 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = N118 Mean = 0.39 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = N117 Mean = 0.41 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N116 Mean = 0.24 % Relative Standard Deviation = 1.5 Number of Observations = 24 Blind Sample ID = N115 Mean = 1.06 % Relative Standard Deviation = 1.7 Number of Observations = 24 Blind Sample ID = N114 Mean = 0.25 % Relative Standard Deviation = 3.1 Number of Observations = 24 Blind Sample ID = N113 Mean = 1.25 % Relative Standard Deviation = 1.6 Number of Observations = 24 Blind Sample ID = N112 Mean = 0.28 % Relative Standard Deviation = 3.5 Number of Observations = 24 Blind Sample ID = N111 Mean = 0.57 % Relative Standard Deviation = 1.6 Number of Observations = 24 Blind Sample ID = N110 Mean = 0.27 % Relative Standard Deviation = 3.2 Number of Observations = 24 Blind Sample ID = N109 Mean = 0.53 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = N108 Mean = 0.17 % Relative Standard Deviation = 5.1 Number of Observations = 24 Blind Sample ID = N107 Mean = 1.31 % Relative Standard Deviation = 1.3 Number of Observations = 24 Blind Sample ID = N106 Mean = 0.26 % Relative Standard Deviation = 4.1 Number of Observations = 24 Blind Sample ID = N105 Mean = 0.67 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N104 Mean = 0.29 % Relative Standard Deviation = 3.2 Number of Observations = 24 Blind Sample ID = N103 Mean = 1.22 % Relative Standard Deviation = 1.3 Number of Observations = 24 Blind Sample ID = N102 Mean = 0.35 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = N101 Mean = 0.63 % Relative Standard Deviation = 1.6 Number of Observations = 22 Blind Sample ID = N100 Mean = 0.26 % Relative Standard Deviation = 38.5 Number of Observations = 23 Blind Sample ID =
The SGPlot Procedure


- Phosphorus as P, FIL, CFA, ACD, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00666, MCode: CL019
Dates: 11/10/04 through 10/07/11
Open Data Set

Mean = 0.29 % Relative Standard Deviation = 1.7 Number of Observations = 9 Blind Sample ID = N99 Mean = 0.06 % Relative Standard Deviation = 2.5 Number of Observations = 12 Blind Sample ID = N98X Mean = 0.13 % Relative Standard Deviation = 0.8 Number of Observations = 4 Blind Sample ID = N96Xc Mean = 0.10 % Relative Standard Deviation = 1.4 Number of Observations = 8 Blind Sample ID = N96X Mean = 0.23 % Relative Standard Deviation = 3.1 Number of Observations = 11 Blind Sample ID = N95 Mean = 0.08 % Relative Standard Deviation = 1.6 Number of Observations = 12 Blind Sample ID = N94X Mean = 0.19 % Relative Standard Deviation = 1.2 Number of Observations = 11 Blind Sample ID = N93 Mean = 0.15 % Relative Standard Deviation = 1.5 Number of Observations = 12 Blind Sample ID = N92X Mean = 0.04 % Relative Standard Deviation = 5.6 Number of Observations = 12 Blind Sample ID = N91 Mean = 0.05 % Relative Standard Deviation = 5.5 Number of Observations = 12 Blind Sample ID = N90X Mean = 0.12 % Relative Standard Deviation = 3.1 Number of Observations = 12 Blind Sample ID = N88X Mean = 0.19 % Relative Standard Deviation = 2.8 Number of Observations = 11 Blind Sample ID = N87 Mean = 0.13 % Relative Standard Deviation = 1.3 Number of Observations = 11 Blind Sample ID = N86X Mean = 0.19 % Relative Standard Deviation = 2.2 Number of Observations = 12 Blind Sample ID = N85 Mean = 0.15 % Relative Standard Deviation = 2.1 Number of Observations = 4 Blind Sample ID = N83 Mean = 0.06 % Relative Standard Deviation = 5.5 Number of Observations = 16 Blind Sample ID = N110X Mean = 0.27 % Relative Standard Deviation = 4.9 Number of Observations = 20 Blind Sample ID = N109 Mean = 0.05 % Relative Standard Deviation = 3.9 Number of Observations = 12 Blind Sample ID = N108X Mean = 0.17 % Relative Standard Deviation = 1.6 Number of Observations = 12 Blind Sample ID = N107 Mean = 0.13 % Relative Standard Deviation = 1.9 Number of Observations = 16 Blind Sample ID = N106X Mean = 0.27 % Relative Standard Deviation = 2.7 Number of Observations = 20 Blind Sample ID = N105 Mean = 0.07 % Relative Standard Deviation = 1.7 Number of Observations = 11 Blind Sample ID = N104X Mean = 0.30 % Relative Standard Deviation = 3.3 Number of Observations = 12 Blind Sample ID = N103 Mean = 0.12 % Relative Standard Deviation = 1.7 Number of Observations = 16 Blind Sample ID = N102X Mean = 0.35 % Relative Standard Deviation = 2.0 Number of Observations = 17 Blind Sample ID = N101 Mean = 0.07 % Relative Standard Deviation = 3.8 Number of Observations = 12 Blind Sample ID = N100X
The SGPlot Procedure


- Phosphorus as P, FIL, CFA, ACD-P, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00666, MCode: CL020
Dates: 10/20/04 through 07/15/24
Open Data Set

Mean = 0.29 % Relative Standard Deviation = 1.5 Number of Observations = 26 Blind Sample ID = N99 Mean = 0.06 % Relative Standard Deviation = 2.4 Number of Observations = 36 Blind Sample ID = N98X Mean = 0.13 % Relative Standard Deviation = 1.6 Number of Observations = 8 Blind Sample ID = N96Xc Mean = 0.10 % Relative Standard Deviation = 2.4 Number of Observations = 26 Blind Sample ID = N96X Mean = 0.18 % Relative Standard Deviation = 1.0 Number of Observations = 4 Blind Sample ID = N95c Mean = 0.24 % Relative Standard Deviation = 4.0 Number of Observations = 30 Blind Sample ID = N95 Mean = 0.08 % Relative Standard Deviation = 2.1 Number of Observations = 35 Blind Sample ID = N94X Mean = 0.19 % Relative Standard Deviation = 1.6 Number of Observations = 35 Blind Sample ID = N93 Mean = 0.15 % Relative Standard Deviation = 1.4 Number of Observations = 34 Blind Sample ID = N92X Mean = 0.04 % Relative Standard Deviation = 4.6 Number of Observations = 34 Blind Sample ID = N91 Mean = 0.05 % Relative Standard Deviation = 3.6 Number of Observations = 35 Blind Sample ID = N90X Mean = 0.12 % Relative Standard Deviation = 3.2 Number of Observations = 35 Blind Sample ID = N88X Mean = 0.19 % Relative Standard Deviation = 2.2 Number of Observations = 20 Blind Sample ID = N87 Mean = 0.13 % Relative Standard Deviation = 3.0 Number of Observations = 21 Blind Sample ID = N86X Mean = 0.18 % Relative Standard Deviation = 2.5 Number of Observations = 43 Blind Sample ID = N85 Mean = 0.07 % Relative Standard Deviation = 3.8 Number of Observations = 20 Blind Sample ID = N84X Mean = 0.16 % Relative Standard Deviation = 2.5 Number of Observations = 40 Blind Sample ID = N83 Mean = 0.03 % Relative Standard Deviation = 5.2 Number of Observations = 9 Blind Sample ID = N162X Mean = 0.13 % Relative Standard Deviation = 2.6 Number of Observations = 6 Blind Sample ID = N161 Mean = 0.04 % Relative Standard Deviation = 3.5 Number of Observations = 10 Blind Sample ID = N160X Mean = 0.13 % Relative Standard Deviation = 1.8 Number of Observations = 8 Blind Sample ID = N159 Mean = 0.03 % Relative Standard Deviation = 5.0 Number of Observations = 18 Blind Sample ID = N158X Mean = 0.11 % Relative Standard Deviation = 2.5 Number of Observations = 17 Blind Sample ID = N157 Mean = 0.07 % Relative Standard Deviation = 3.0 Number of Observations = 15 Blind Sample ID = N156X Mean = 0.14 % Relative Standard Deviation = 1.8 Number of Observations = 14 Blind Sample ID = N155 Mean = 0.03 % Relative Standard Deviation = 4.0 Number of Observations = 18 Blind Sample ID = N154X Mean = 0.10 % Relative Standard Deviation = 1.9 Number of Observations = 18 Blind Sample ID = N153 Mean = 0.03 % Relative Standard Deviation = 4.3 Number of Observations = 13 Blind Sample ID = N152X Mean = 0.09 % Relative Standard Deviation = 2.9 Number of Observations = 15 Blind Sample ID = N151 Mean = 0.04 % Relative Standard Deviation = 3.7 Number of Observations = 18 Blind Sample ID = N150X Mean = 0.19 % Relative Standard Deviation = 1.9 Number of Observations = 18 Blind Sample ID = N149 Mean = 0.03 % Relative Standard Deviation = 3.6 Number of Observations = 15 Blind Sample ID = N148X Mean = 0.21 % Relative Standard Deviation = 2.0 Number of Observations = 15 Blind Sample ID = N147 Mean = 0.03 % Relative Standard Deviation = 3.9 Number of Observations = 16 Blind Sample ID = N146X Mean = 0.14 % Relative Standard Deviation = 2.5 Number of Observations = 18 Blind Sample ID = N145 Mean = 0.04 % Relative Standard Deviation = 2.4 Number of Observations = 15 Blind Sample ID = N144X Mean = 0.19 % Relative Standard Deviation = 2.5 Number of Observations = 15 Blind Sample ID = N143 Mean = 0.06 % Relative Standard Deviation = 2.0 Number of Observations = 18 Blind Sample ID = N142X Mean = 0.18 % Relative Standard Deviation = 1.8 Number of Observations = 18 Blind Sample ID = N141 Mean = 0.03 % Relative Standard Deviation = 3.1 Number of Observations = 11 Blind Sample ID = N140X Mean = 0.13 % Relative Standard Deviation = 3.1 Number of Observations = 12 Blind Sample ID = N139 Mean = 0.06 % Relative Standard Deviation = 2.5 Number of Observations = 18 Blind Sample ID = N138X Mean = 0.13 % Relative Standard Deviation = 2.5 Number of Observations = 17 Blind Sample ID = N137 Mean = 0.04 % Relative Standard Deviation = 3.7 Number of Observations = 15 Blind Sample ID = N136X Mean = 0.17 % Relative Standard Deviation = 1.9 Number of Observations = 15 Blind Sample ID = N135 Mean = 0.03 % Relative Standard Deviation = 3.6 Number of Observations = 24 Blind Sample ID = N134X Mean = 0.11 % Relative Standard Deviation = 2.1 Number of Observations = 24 Blind Sample ID = N133 Mean = 0.03 % Relative Standard Deviation = 5.3 Number of Observations = 21 Blind Sample ID = N132X Mean = 0.07 % Relative Standard Deviation = 3.5 Number of Observations = 21 Blind Sample ID = N131 Mean = 0.06 % Relative Standard Deviation = 3.3 Number of Observations = 23 Blind Sample ID = N130X Mean = 0.22 % Relative Standard Deviation = 2.8 Number of Observations = 24 Blind Sample ID = N129 Mean = 0.04 % Relative Standard Deviation = 2.5 Number of Observations = 23 Blind Sample ID = N128X Mean = 0.15 % Relative Standard Deviation = 2.0 Number of Observations = 23 Blind Sample ID = N127 Mean = 0.05 % Relative Standard Deviation = 2.9 Number of Observations = 24 Blind Sample ID = N126X Mean = 0.25 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = N125 Mean = 0.02 % Relative Standard Deviation = 5.8 Number of Observations = 24 Blind Sample ID = N124X Mean = 0.28 % Relative Standard Deviation = 2.8 Number of Observations = 24 Blind Sample ID = N123 Mean = 0.06 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = N122X Mean = 0.17 % Relative Standard Deviation = 2.4 Number of Observations = 24 Blind Sample ID = N121 Mean = 0.07 % Relative Standard Deviation = 3.0 Number of Observations = 21 Blind Sample ID = N120X Mean = 0.24 % Relative Standard Deviation = 2.6 Number of Observations = 21 Blind Sample ID = N119 Mean = 0.09 % Relative Standard Deviation = 2.2 Number of Observations = 17 Blind Sample ID = N118X Mean = 0.40 % Relative Standard Deviation = 2.9 Number of Observations = 18 Blind Sample ID = N117 Mean = 0.04 % Relative Standard Deviation = 3.9 Number of Observations = 36 Blind Sample ID = N116X Mean = 0.25 % Relative Standard Deviation = 2.9 Number of Observations = 36 Blind Sample ID = N115 Mean = 0.11 % Relative Standard Deviation = 1.6 Number of Observations = 36 Blind Sample ID = N114X Mean = 0.26 % Relative Standard Deviation = 2.5 Number of Observations = 36 Blind Sample ID = N113 Mean = 0.12 % Relative Standard Deviation = 3.3 Number of Observations = 36 Blind Sample ID = N112X Mean = 0.29 % Relative Standard Deviation = 3.6 Number of Observations = 36 Blind Sample ID = N111 Mean = 0.06 % Relative Standard Deviation = 3.8 Number of Observations = 36 Blind Sample ID = N110X Mean = 0.27 % Relative Standard Deviation = 2.8 Number of Observations = 35 Blind Sample ID = N109 Mean = 0.05 % Relative Standard Deviation = 3.7 Number of Observations = 36 Blind Sample ID = N108X Mean = 0.17 % Relative Standard Deviation = 1.9 Number of Observations = 36 Blind Sample ID = N107 Mean = 0.13 % Relative Standard Deviation = 1.8 Number of Observations = 36 Blind Sample ID = N106X Mean = 0.26 % Relative Standard Deviation = 1.9 Number of Observations = 35 Blind Sample ID = N105 Mean = 0.07 % Relative Standard Deviation = 1.8 Number of Observations = 36 Blind Sample ID = N104X Mean = 0.30 % Relative Standard Deviation = 1.7 Number of Observations = 36 Blind Sample ID = N103 Mean = 0.12 % Relative Standard Deviation = 1.4 Number of Observations = 36 Blind Sample ID = N102X Mean = 0.36 % Relative Standard Deviation = 2.0 Number of Observations = 34 Blind Sample ID = N101 Mean = 0.06 % Relative Standard Deviation = 2.3 Number of Observations = 31 Blind Sample ID = N100X Mean = 0.10 % Relative Standard Deviation = 137.7 Number of Observations = 14 Blind Sample ID =
The SGPlot Procedure


- Phosphorus as P, FIL, CFA, ALK-P -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00666, MCode: CL063
Dates: 10/13/04 through 05/22/24
Open Data Set

Mean = 0.23 % Relative Standard Deviation = 4.5 Number of Observations = 26 Blind Sample ID = NS15 Mean = 0.51 % Relative Standard Deviation = 2.8 Number of Observations = 20 Blind Sample ID = NS13 Mean = 0.28 % Relative Standard Deviation = 3.0 Number of Observations = 15 Blind Sample ID = N99 Mean = 0.58 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = N98 Mean = 0.41 % Relative Standard Deviation = 2.2 Number of Observations = 45 Blind Sample ID = N97 Mean = 0.98 % Relative Standard Deviation = 2.5 Number of Observations = 11 Blind Sample ID = N96 Mean = 0.17 % Relative Standard Deviation = 3.9 Number of Observations = 4 Blind Sample ID = N95c Mean = 0.23 % Relative Standard Deviation = 2.8 Number of Observations = 9 Blind Sample ID = N95 Mean = 0.75 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = N94 Mean = 0.19 % Relative Standard Deviation = 3.2 Number of Observations = 8 Blind Sample ID = N93 Mean = 1.52 % Relative Standard Deviation = 2.1 Number of Observations = 11 Blind Sample ID = N92 Mean = 0.04 % Relative Standard Deviation = 10.8 Number of Observations = 11 Blind Sample ID = N91 Mean = 0.45 % Relative Standard Deviation = 3.1 Number of Observations = 12 Blind Sample ID = N90 Mean = 0.28 % Relative Standard Deviation = 3.2 Number of Observations = 44 Blind Sample ID = N89 Mean = 1.14 % Relative Standard Deviation = 2.3 Number of Observations = 12 Blind Sample ID = N88 Mean = 0.18 % Relative Standard Deviation = 2.6 Number of Observations = 27 Blind Sample ID = N87 Mean = 1.31 % Relative Standard Deviation = 2.4 Number of Observations = 23 Blind Sample ID = N86 Mean = 0.17 % Relative Standard Deviation = 3.3 Number of Observations = 22 Blind Sample ID = N85 Mean = 0.71 % Relative Standard Deviation = 3.2 Number of Observations = 22 Blind Sample ID = N84 Mean = 0.15 % Relative Standard Deviation = 4.3 Number of Observations = 18 Blind Sample ID = N83 Mean = 0.36 % Relative Standard Deviation = 1.0 Number of Observations = 4 Blind Sample ID = N160 Mean = 0.13 % Relative Standard Deviation = 1.4 Number of Observations = 3 Blind Sample ID = N159 Mean = 0.27 % Relative Standard Deviation = 3.1 Number of Observations = 5 Blind Sample ID = N158 Mean = 0.12 % Relative Standard Deviation = 4.3 Number of Observations = 4 Blind Sample ID = N157 Mean = 0.67 % Relative Standard Deviation = 1.7 Number of Observations = 5 Blind Sample ID = N156 Mean = 0.14 % Relative Standard Deviation = 2.1 Number of Observations = 6 Blind Sample ID = N155 Mean = 0.29 % Relative Standard Deviation = 4.6 Number of Observations = 6 Blind Sample ID = N154 Mean = 0.10 % Relative Standard Deviation = 3.6 Number of Observations = 6 Blind Sample ID = N153 Mean = 0.32 % Relative Standard Deviation = 2.4 Number of Observations = 6 Blind Sample ID = N152 Mean = 0.09 % Relative Standard Deviation = 2.7 Number of Observations = 6 Blind Sample ID = N151 Mean = 0.45 % Relative Standard Deviation = 2.2 Number of Observations = 6 Blind Sample ID = N150 Mean = 0.19 % Relative Standard Deviation = 3.4 Number of Observations = 6 Blind Sample ID = N149 Mean = 0.31 % Relative Standard Deviation = 4.9 Number of Observations = 6 Blind Sample ID = N148 Mean = 0.21 % Relative Standard Deviation = 6.3 Number of Observations = 6 Blind Sample ID = N147 Mean = 0.34 % Relative Standard Deviation = 4.2 Number of Observations = 6 Blind Sample ID = N146 Mean = 0.14 % Relative Standard Deviation = 3.1 Number of Observations = 6 Blind Sample ID = N145 Mean = 0.41 % Relative Standard Deviation = 2.5 Number of Observations = 6 Blind Sample ID = N144 Mean = 0.18 % Relative Standard Deviation = 1.7 Number of Observations = 6 Blind Sample ID = N143 Mean = 0.39 % Relative Standard Deviation = 2.3 Number of Observations = 6 Blind Sample ID = N136 Mean = 0.16 % Relative Standard Deviation = 2.3 Number of Observations = 6 Blind Sample ID = N135 Mean = 0.27 % Relative Standard Deviation = 3.4 Number of Observations = 6 Blind Sample ID = N134 Mean = 0.11 % Relative Standard Deviation = 6.0 Number of Observations = 6 Blind Sample ID = N133 Mean = 0.30 % Relative Standard Deviation = 3.0 Number of Observations = 6 Blind Sample ID = N132 Mean = 0.07 % Relative Standard Deviation = 2.5 Number of Observations = 6 Blind Sample ID = N131 Mean = 0.58 % Relative Standard Deviation = 2.1 Number of Observations = 6 Blind Sample ID = N130 Mean = 0.22 % Relative Standard Deviation = 2.3 Number of Observations = 6 Blind Sample ID = N129 Mean = 0.43 % Relative Standard Deviation = 5.2 Number of Observations = 6 Blind Sample ID = N128 Mean = 0.15 % Relative Standard Deviation = 2.7 Number of Observations = 6 Blind Sample ID = N127 Mean = 0.50 % Relative Standard Deviation = 3.0 Number of Observations = 6 Blind Sample ID = N126 Mean = 0.24 % Relative Standard Deviation = 2.1 Number of Observations = 6 Blind Sample ID = N125 Mean = 0.19 % Relative Standard Deviation = 2.8 Number of Observations = 6 Blind Sample ID = N124 Mean = 0.28 % Relative Standard Deviation = 4.1 Number of Observations = 6 Blind Sample ID = N123 Mean = 0.56 % Relative Standard Deviation = 1.5 Number of Observations = 6 Blind Sample ID = N122 Mean = 0.16 % Relative Standard Deviation = 3.0 Number of Observations = 6 Blind Sample ID = N121 Mean = 0.64 % Relative Standard Deviation = 4.8 Number of Observations = 5 Blind Sample ID = N120 Mean = 0.23 % Relative Standard Deviation = 3.3 Number of Observations = 6 Blind Sample ID = N119 Mean = 0.89 % Relative Standard Deviation = 0.9 Number of Observations = 6 Blind Sample ID = N118 Mean = 0.40 % Relative Standard Deviation = 4.3 Number of Observations = 6 Blind Sample ID = N117 Mean = 0.40 % Relative Standard Deviation = 2.4 Number of Observations = 11 Blind Sample ID = N116 Mean = 0.23 % Relative Standard Deviation = 7.4 Number of Observations = 10 Blind Sample ID = N115 Mean = 1.07 % Relative Standard Deviation = 2.1 Number of Observations = 12 Blind Sample ID = N114 Mean = 0.25 % Relative Standard Deviation = 2.0 Number of Observations = 11 Blind Sample ID = N113 Mean = 1.25 % Relative Standard Deviation = 1.5 Number of Observations = 12 Blind Sample ID = N112 Mean = 0.29 % Relative Standard Deviation = 3.1 Number of Observations = 12 Blind Sample ID = N111 Mean = 0.57 % Relative Standard Deviation = 3.4 Number of Observations = 12 Blind Sample ID = N110 Mean = 0.27 % Relative Standard Deviation = 3.9 Number of Observations = 12 Blind Sample ID = N109 Mean = 0.52 % Relative Standard Deviation = 2.8 Number of Observations = 11 Blind Sample ID = N108 Mean = 0.16 % Relative Standard Deviation = 3.6 Number of Observations = 12 Blind Sample ID = N107 Mean = 1.33 % Relative Standard Deviation = 2.8 Number of Observations = 12 Blind Sample ID = N106 Mean = 0.26 % Relative Standard Deviation = 2.4 Number of Observations = 13 Blind Sample ID = N105 Mean = 0.66 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = N104 Mean = 0.29 % Relative Standard Deviation = 3.4 Number of Observations = 12 Blind Sample ID = N103 Mean = 1.21 % Relative Standard Deviation = 3.2 Number of Observations = 12 Blind Sample ID = N102 Mean = 0.36 % Relative Standard Deviation = 3.0 Number of Observations = 14 Blind Sample ID = N101 Mean = 0.63 % Relative Standard Deviation = 3.0 Number of Observations = 11 Blind Sample ID = N100
The SGPlot Procedure


- Phosphorus as P, FIL, CFA, ALK-P, ACD -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00666, MCode: CL062
Dates: 10/19/04 through 05/20/09
Open Data Set

Mean = 0.29 % Relative Standard Deviation = 0.4 Number of Observations = 3 Blind Sample ID = N99 Mean = 0.40 % Relative Standard Deviation = 2.6 Number of Observations = 10 Blind Sample ID = N97 Mean = 0.45 % Relative Standard Deviation = 2.5 Number of Observations = 12 Blind Sample ID = N90 Mean = 0.28 % Relative Standard Deviation = 3.5 Number of Observations = 24 Blind Sample ID = N89 Mean = 1.10 % Relative Standard Deviation = 3.8 Number of Observations = 8 Blind Sample ID = N88 Mean = 0.18 % Relative Standard Deviation = 1.8 Number of Observations = 4 Blind Sample ID = N87 Mean = 1.30 % Relative Standard Deviation = 1.2 Number of Observations = 11 Blind Sample ID = N86 Mean = 0.18 % Relative Standard Deviation = 3.6 Number of Observations = 12 Blind Sample ID = N85 Mean = 0.69 % Relative Standard Deviation = 2.4 Number of Observations = 14 Blind Sample ID = N84 Mean = 0.15 % Relative Standard Deviation = 4.2 Number of Observations = 8 Blind Sample ID = N83 Mean = 0.35 % Relative Standard Deviation = 3.8 Number of Observations = 3 Blind Sample ID = N101
The SGPlot Procedure


- Total Nitrogen (NH3+NO3+NO2 plus org N), FIL, CFA, ALK-P -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 62854, MCode: CL063
Dates: 10/13/04 through 06/24/24
Open Data Set

Mean = 0.86 % Relative Standard Deviation = 3.6 Number of Observations = 27 Blind Sample ID = NS15 Mean = 2.83 % Relative Standard Deviation = 2.4 Number of Observations = 20 Blind Sample ID = NS13 Mean = 0.38 % Relative Standard Deviation = 4.9 Number of Observations = 32 Blind Sample ID = N99 Mean = 1.70 % Relative Standard Deviation = 2.6 Number of Observations = 36 Blind Sample ID = N98 Mean = 0.73 % Relative Standard Deviation = 3.6 Number of Observations = 32 Blind Sample ID = N97 Mean = 1.88 % Relative Standard Deviation = 2.9 Number of Observations = 34 Blind Sample ID = N96 Mean = 0.22 % Relative Standard Deviation = 9.0 Number of Observations = 5 Blind Sample ID = N95c Mean = 0.28 % Relative Standard Deviation = 17.6 Number of Observations = 27 Blind Sample ID = N95 Mean = 1.67 % Relative Standard Deviation = 2.0 Number of Observations = 32 Blind Sample ID = N94 Mean = 0.31 % Relative Standard Deviation = 6.0 Number of Observations = 36 Blind Sample ID = N93 Mean = 2.52 % Relative Standard Deviation = 2.8 Number of Observations = 34 Blind Sample ID = N92 Mean = 0.21 % Relative Standard Deviation = 18.5 Number of Observations = 35 Blind Sample ID = N91 Mean = 1.27 % Relative Standard Deviation = 3.9 Number of Observations = 36 Blind Sample ID = N90 Mean = 0.56 % Relative Standard Deviation = 9.9 Number of Observations = 34 Blind Sample ID = N89 Mean = 2.62 % Relative Standard Deviation = 2.5 Number of Observations = 36 Blind Sample ID = N88 Mean = 0.48 % Relative Standard Deviation = 15.4 Number of Observations = 36 Blind Sample ID = N87 Mean = 1.68 % Relative Standard Deviation = 3.1 Number of Observations = 23 Blind Sample ID = N86 Mean = 0.34 % Relative Standard Deviation = 4.2 Number of Observations = 19 Blind Sample ID = N85 Mean = 2.31 % Relative Standard Deviation = 2.9 Number of Observations = 22 Blind Sample ID = N84 Mean = 0.30 % Relative Standard Deviation = 19.6 Number of Observations = 19 Blind Sample ID = N83 Mean = 3.62 % Relative Standard Deviation = 3.2 Number of Observations = 9 Blind Sample ID = N162 Mean = 0.49 % Relative Standard Deviation = 5.9 Number of Observations = 5 Blind Sample ID = N161 Mean = 1.75 % Relative Standard Deviation = 2.5 Number of Observations = 14 Blind Sample ID = N160 Mean = 0.34 % Relative Standard Deviation = 3.6 Number of Observations = 11 Blind Sample ID = N159 Mean = 1.78 % Relative Standard Deviation = 4.4 Number of Observations = 19 Blind Sample ID = N158 Mean = 0.38 % Relative Standard Deviation = 8.5 Number of Observations = 18 Blind Sample ID = N157 Mean = 4.98 % Relative Standard Deviation = 4.4 Number of Observations = 23 Blind Sample ID = N156 Mean = 0.55 % Relative Standard Deviation = 3.4 Number of Observations = 24 Blind Sample ID = N155 Mean = 1.08 % Relative Standard Deviation = 4.7 Number of Observations = 22 Blind Sample ID = N154 Mean = 0.48 % Relative Standard Deviation = 4.7 Number of Observations = 24 Blind Sample ID = N153 Mean = 2.57 % Relative Standard Deviation = 2.0 Number of Observations = 18 Blind Sample ID = N152 Mean = 0.43 % Relative Standard Deviation = 3.2 Number of Observations = 18 Blind Sample ID = N151 Mean = 1.56 % Relative Standard Deviation = 1.9 Number of Observations = 18 Blind Sample ID = N150 Mean = 0.58 % Relative Standard Deviation = 4.9 Number of Observations = 18 Blind Sample ID = N149 Mean = 1.41 % Relative Standard Deviation = 2.3 Number of Observations = 18 Blind Sample ID = N148 Mean = 0.39 % Relative Standard Deviation = 4.1 Number of Observations = 18 Blind Sample ID = N147 Mean = 0.78 % Relative Standard Deviation = 4.4 Number of Observations = 18 Blind Sample ID = N146 Mean = 0.21 % Relative Standard Deviation = 8.0 Number of Observations = 17 Blind Sample ID = N145 Mean = 0.95 % Relative Standard Deviation = 2.2 Number of Observations = 18 Blind Sample ID = N144 Mean = 0.36 % Relative Standard Deviation = 5.3 Number of Observations = 18 Blind Sample ID = N143 Mean = 1.08 % Relative Standard Deviation = 3.4 Number of Observations = 18 Blind Sample ID = N142 Mean = 0.29 % Relative Standard Deviation = 6.2 Number of Observations = 18 Blind Sample ID = N141 Mean = 1.14 % Relative Standard Deviation = 3.2 Number of Observations = 13 Blind Sample ID = N140 Mean = 0.30 % Relative Standard Deviation = 4.6 Number of Observations = 12 Blind Sample ID = N139 Mean = 1.27 % Relative Standard Deviation = 3.3 Number of Observations = 16 Blind Sample ID = N138 Mean = 0.46 % Relative Standard Deviation = 2.5 Number of Observations = 18 Blind Sample ID = N137 Mean = 1.06 % Relative Standard Deviation = 2.6 Number of Observations = 18 Blind Sample ID = N136 Mean = 0.61 % Relative Standard Deviation = 3.4 Number of Observations = 18 Blind Sample ID = N135 Mean = 1.00 % Relative Standard Deviation = 2.8 Number of Observations = 18 Blind Sample ID = N134 Mean = 0.19 % Relative Standard Deviation = 9.6 Number of Observations = 18 Blind Sample ID = N133 Mean = 1.26 % Relative Standard Deviation = 3.5 Number of Observations = 17 Blind Sample ID = N132 Mean = 0.49 % Relative Standard Deviation = 3.4 Number of Observations = 18 Blind Sample ID = N131 Mean = 2.40 % Relative Standard Deviation = 3.1 Number of Observations = 18 Blind Sample ID = N130 Mean = 0.48 % Relative Standard Deviation = 3.8 Number of Observations = 18 Blind Sample ID = N129 Mean = 3.63 % Relative Standard Deviation = 1.6 Number of Observations = 18 Blind Sample ID = N128 Mean = 0.45 % Relative Standard Deviation = 5.7 Number of Observations = 18 Blind Sample ID = N127 Mean = 1.90 % Relative Standard Deviation = 3.3 Number of Observations = 18 Blind Sample ID = N126 Mean = 0.46 % Relative Standard Deviation = 3.8 Number of Observations = 18 Blind Sample ID = N125 Mean = 0.74 % Relative Standard Deviation = 3.8 Number of Observations = 18 Blind Sample ID = N124 Mean = 0.54 % Relative Standard Deviation = 3.0 Number of Observations = 18 Blind Sample ID = N123 Mean = 1.69 % Relative Standard Deviation = 2.8 Number of Observations = 23 Blind Sample ID = N122 Mean = 0.57 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = N121 Mean = 1.23 % Relative Standard Deviation = 3.7 Number of Observations = 21 Blind Sample ID = N120 Mean = 0.52 % Relative Standard Deviation = 6.2 Number of Observations = 21 Blind Sample ID = N119 Mean = 1.55 % Relative Standard Deviation = 3.1 Number of Observations = 18 Blind Sample ID = N118 Mean = 0.64 % Relative Standard Deviation = 5.1 Number of Observations = 17 Blind Sample ID = N117 Mean = 0.86 % Relative Standard Deviation = 3.8 Number of Observations = 35 Blind Sample ID = N116 Mean = 0.47 % Relative Standard Deviation = 3.5 Number of Observations = 36 Blind Sample ID = N115 Mean = 2.25 % Relative Standard Deviation = 2.7 Number of Observations = 36 Blind Sample ID = N114 Mean = 0.34 % Relative Standard Deviation = 9.6 Number of Observations = 36 Blind Sample ID = N113 Mean = 2.30 % Relative Standard Deviation = 2.9 Number of Observations = 36 Blind Sample ID = N112 Mean = 0.60 % Relative Standard Deviation = 4.3 Number of Observations = 36 Blind Sample ID = N111 Mean = 2.18 % Relative Standard Deviation = 2.8 Number of Observations = 35 Blind Sample ID = N110 Mean = 0.40 % Relative Standard Deviation = 6.4 Number of Observations = 33 Blind Sample ID = N109 Mean = 1.47 % Relative Standard Deviation = 2.5 Number of Observations = 35 Blind Sample ID = N108 Mean = 0.36 % Relative Standard Deviation = 5.9 Number of Observations = 36 Blind Sample ID = N107 Mean = 2.31 % Relative Standard Deviation = 2.9 Number of Observations = 36 Blind Sample ID = N106 Mean = 0.45 % Relative Standard Deviation = 4.6 Number of Observations = 36 Blind Sample ID = N105 Mean = 1.59 % Relative Standard Deviation = 2.8 Number of Observations = 36 Blind Sample ID = N104 Mean = 0.60 % Relative Standard Deviation = 3.5 Number of Observations = 36 Blind Sample ID = N103 Mean = 1.91 % Relative Standard Deviation = 2.8 Number of Observations = 35 Blind Sample ID = N102 Mean = 0.74 % Relative Standard Deviation = 3.9 Number of Observations = 36 Blind Sample ID = N101 Mean = 1.48 % Relative Standard Deviation = 3.4 Number of Observations = 34 Blind Sample ID = N100 Mean = 2.03 % Relative Standard Deviation = 45.2 Number of Observations = 13 Blind Sample ID =
The SGPlot Procedure


- Total Nitrogen (NH3+NO3+NO2 plus org N), FIL, CFA, ALK-P, ACD -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 62854, MCode: CL062
Dates: 10/19/04 through 10/07/05
Open Data Set

Mean = 1.69 % Relative Standard Deviation = 2.1 Number of Observations = 11 Blind Sample ID = N86 Mean = 0.35 % Relative Standard Deviation = 2.9 Number of Observations = 12 Blind Sample ID = N85 Mean = 2.28 % Relative Standard Deviation = 1.6 Number of Observations = 10 Blind Sample ID = N84 Mean = 0.32 % Relative Standard Deviation = 8.9 Number of Observations = 8 Blind Sample ID = N83
The SGPlot Procedure


- Total Nitrogen (NH3+NO3+NO2+org N), UNF, CFA, ALK-P, ACD -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 62855, MCode: AKP01
Dates: 10/13/04 through 06/27/24
Open Data Set

Mean = 0.84 % Relative Standard Deviation = 4.9 Number of Observations = 27 Blind Sample ID = NS15 Mean = 2.85 % Relative Standard Deviation = 2.2 Number of Observations = 20 Blind Sample ID = NS13 Mean = 0.37 % Relative Standard Deviation = 5.3 Number of Observations = 32 Blind Sample ID = N99 Mean = 1.69 % Relative Standard Deviation = 3.3 Number of Observations = 36 Blind Sample ID = N98 Mean = 0.71 % Relative Standard Deviation = 8.6 Number of Observations = 32 Blind Sample ID = N97 Mean = 1.87 % Relative Standard Deviation = 2.3 Number of Observations = 34 Blind Sample ID = N96 Mean = 0.27 % Relative Standard Deviation = 33.7 Number of Observations = 5 Blind Sample ID = N95c Mean = 0.26 % Relative Standard Deviation = 13.1 Number of Observations = 27 Blind Sample ID = N95 Mean = 1.67 % Relative Standard Deviation = 2.2 Number of Observations = 32 Blind Sample ID = N94 Mean = 0.31 % Relative Standard Deviation = 8.5 Number of Observations = 36 Blind Sample ID = N93 Mean = 2.50 % Relative Standard Deviation = 2.9 Number of Observations = 34 Blind Sample ID = N92 Mean = 0.21 % Relative Standard Deviation = 8.5 Number of Observations = 35 Blind Sample ID = N91 Mean = 1.25 % Relative Standard Deviation = 3.5 Number of Observations = 34 Blind Sample ID = N90 Mean = 0.55 % Relative Standard Deviation = 10.8 Number of Observations = 36 Blind Sample ID = N89 Mean = 2.60 % Relative Standard Deviation = 3.4 Number of Observations = 36 Blind Sample ID = N88 Mean = 0.46 % Relative Standard Deviation = 4.7 Number of Observations = 36 Blind Sample ID = N87 Mean = 1.69 % Relative Standard Deviation = 2.2 Number of Observations = 23 Blind Sample ID = N86 Mean = 0.35 % Relative Standard Deviation = 3.4 Number of Observations = 19 Blind Sample ID = N85 Mean = 2.29 % Relative Standard Deviation = 3.4 Number of Observations = 22 Blind Sample ID = N84 Mean = 0.31 % Relative Standard Deviation = 19.4 Number of Observations = 18 Blind Sample ID = N83 Mean = 3.47 % Relative Standard Deviation = 3.2 Number of Observations = 9 Blind Sample ID = N162 Mean = 0.49 % Relative Standard Deviation = 3.6 Number of Observations = 5 Blind Sample ID = N161 Mean = 1.64 % Relative Standard Deviation = 2.9 Number of Observations = 9 Blind Sample ID = N160 Mean = 0.34 % Relative Standard Deviation = 3.2 Number of Observations = 7 Blind Sample ID = N159 Mean = 1.74 % Relative Standard Deviation = 2.9 Number of Observations = 22 Blind Sample ID = N158 Mean = 0.37 % Relative Standard Deviation = 3.6 Number of Observations = 20 Blind Sample ID = N157 Mean = 4.79 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = N156 Mean = 0.54 % Relative Standard Deviation = 9.9 Number of Observations = 24 Blind Sample ID = N155 Mean = 1.10 % Relative Standard Deviation = 5.3 Number of Observations = 22 Blind Sample ID = N154 Mean = 0.47 % Relative Standard Deviation = 7.9 Number of Observations = 24 Blind Sample ID = N153 Mean = 2.57 % Relative Standard Deviation = 1.3 Number of Observations = 18 Blind Sample ID = N152 Mean = 0.42 % Relative Standard Deviation = 2.3 Number of Observations = 18 Blind Sample ID = N151 Mean = 1.56 % Relative Standard Deviation = 2.2 Number of Observations = 18 Blind Sample ID = N150 Mean = 0.57 % Relative Standard Deviation = 2.9 Number of Observations = 18 Blind Sample ID = N149 Mean = 1.39 % Relative Standard Deviation = 2.4 Number of Observations = 18 Blind Sample ID = N148 Mean = 0.38 % Relative Standard Deviation = 4.0 Number of Observations = 18 Blind Sample ID = N147 Mean = 0.77 % Relative Standard Deviation = 3.1 Number of Observations = 18 Blind Sample ID = N146 Mean = 0.20 % Relative Standard Deviation = 6.5 Number of Observations = 17 Blind Sample ID = N145 Mean = 0.93 % Relative Standard Deviation = 3.8 Number of Observations = 18 Blind Sample ID = N144 Mean = 0.35 % Relative Standard Deviation = 3.6 Number of Observations = 18 Blind Sample ID = N143 Mean = 1.02 % Relative Standard Deviation = 3.7 Number of Observations = 18 Blind Sample ID = N142 Mean = 0.28 % Relative Standard Deviation = 8.2 Number of Observations = 18 Blind Sample ID = N141 Mean = 1.15 % Relative Standard Deviation = 2.5 Number of Observations = 13 Blind Sample ID = N140 Mean = 0.29 % Relative Standard Deviation = 9.9 Number of Observations = 12 Blind Sample ID = N139 Mean = 1.27 % Relative Standard Deviation = 4.0 Number of Observations = 18 Blind Sample ID = N138 Mean = 0.44 % Relative Standard Deviation = 2.9 Number of Observations = 18 Blind Sample ID = N137 Mean = 1.04 % Relative Standard Deviation = 4.6 Number of Observations = 18 Blind Sample ID = N136 Mean = 0.63 % Relative Standard Deviation = 3.5 Number of Observations = 18 Blind Sample ID = N135 Mean = 0.98 % Relative Standard Deviation = 4.1 Number of Observations = 18 Blind Sample ID = N134 Mean = 0.19 % Relative Standard Deviation = 13.2 Number of Observations = 18 Blind Sample ID = N133 Mean = 1.25 % Relative Standard Deviation = 3.7 Number of Observations = 17 Blind Sample ID = N132 Mean = 0.48 % Relative Standard Deviation = 4.1 Number of Observations = 18 Blind Sample ID = N131 Mean = 2.41 % Relative Standard Deviation = 2.5 Number of Observations = 18 Blind Sample ID = N130 Mean = 0.48 % Relative Standard Deviation = 5.1 Number of Observations = 17 Blind Sample ID = N129 Mean = 3.62 % Relative Standard Deviation = 2.2 Number of Observations = 18 Blind Sample ID = N128 Mean = 0.44 % Relative Standard Deviation = 5.3 Number of Observations = 18 Blind Sample ID = N127 Mean = 1.88 % Relative Standard Deviation = 4.1 Number of Observations = 18 Blind Sample ID = N126 Mean = 0.46 % Relative Standard Deviation = 3.5 Number of Observations = 18 Blind Sample ID = N125 Mean = 0.74 % Relative Standard Deviation = 4.5 Number of Observations = 18 Blind Sample ID = N124 Mean = 0.54 % Relative Standard Deviation = 6.0 Number of Observations = 18 Blind Sample ID = N123 Mean = 1.68 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = N122 Mean = 0.57 % Relative Standard Deviation = 4.0 Number of Observations = 24 Blind Sample ID = N121 Mean = 1.22 % Relative Standard Deviation = 5.0 Number of Observations = 21 Blind Sample ID = N120 Mean = 0.53 % Relative Standard Deviation = 6.2 Number of Observations = 21 Blind Sample ID = N119 Mean = 1.49 % Relative Standard Deviation = 3.4 Number of Observations = 17 Blind Sample ID = N118 Mean = 0.63 % Relative Standard Deviation = 5.5 Number of Observations = 17 Blind Sample ID = N117 Mean = 0.84 % Relative Standard Deviation = 3.8 Number of Observations = 36 Blind Sample ID = N116 Mean = 0.44 % Relative Standard Deviation = 6.0 Number of Observations = 36 Blind Sample ID = N115 Mean = 2.16 % Relative Standard Deviation = 2.3 Number of Observations = 35 Blind Sample ID = N114 Mean = 0.32 % Relative Standard Deviation = 5.3 Number of Observations = 36 Blind Sample ID = N113 Mean = 2.31 % Relative Standard Deviation = 3.1 Number of Observations = 36 Blind Sample ID = N112 Mean = 0.59 % Relative Standard Deviation = 4.3 Number of Observations = 36 Blind Sample ID = N111 Mean = 2.16 % Relative Standard Deviation = 3.9 Number of Observations = 36 Blind Sample ID = N110 Mean = 0.42 % Relative Standard Deviation = 5.2 Number of Observations = 36 Blind Sample ID = N109 Mean = 1.47 % Relative Standard Deviation = 5.1 Number of Observations = 36 Blind Sample ID = N108 Mean = 0.36 % Relative Standard Deviation = 6.8 Number of Observations = 36 Blind Sample ID = N107 Mean = 2.28 % Relative Standard Deviation = 2.9 Number of Observations = 36 Blind Sample ID = N106 Mean = 0.45 % Relative Standard Deviation = 3.8 Number of Observations = 36 Blind Sample ID = N105 Mean = 1.58 % Relative Standard Deviation = 3.0 Number of Observations = 36 Blind Sample ID = N104 Mean = 0.60 % Relative Standard Deviation = 3.2 Number of Observations = 36 Blind Sample ID = N103 Mean = 1.90 % Relative Standard Deviation = 3.9 Number of Observations = 35 Blind Sample ID = N102 Mean = 0.72 % Relative Standard Deviation = 4.7 Number of Observations = 32 Blind Sample ID = N101 Mean = 1.47 % Relative Standard Deviation = 3.9 Number of Observations = 34 Blind Sample ID = N100
The SGPlot Procedure