- Acid Neutralizing Capacity (ANC; as CaCO3), UNF, TITR -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 90410, MCode: TT040
Dates: 10/17/06 through 09/29/21
Open Data Set

Mean = 14.83 % Relative Standard Deviation = 1.3 Number of Observations = 4 Blind Sample ID = M232 Mean = 52.38 % Relative Standard Deviation = 1.3 Number of Observations = 4 Blind Sample ID = M230 Mean = 35.62 % Relative Standard Deviation = 1.9 Number of Observations = 8 Blind Sample ID = M228 Mean = 50.83 % Relative Standard Deviation = 0.6 Number of Observations = 8 Blind Sample ID = M226 Mean = 23.76 % Relative Standard Deviation = 2.9 Number of Observations = 11 Blind Sample ID = M224 Mean = 58.41 % Relative Standard Deviation = 2.3 Number of Observations = 11 Blind Sample ID = M222 Mean = 53.55 % Relative Standard Deviation = 2.0 Number of Observations = 11 Blind Sample ID = M220 Mean = 30.22 % Relative Standard Deviation = 1.6 Number of Observations = 12 Blind Sample ID = M218 Mean = 30.56 % Relative Standard Deviation = 1.0 Number of Observations = 10 Blind Sample ID = M216 Mean = 41.66 % Relative Standard Deviation = 1.2 Number of Observations = 12 Blind Sample ID = M214 Mean = 23.72 % Relative Standard Deviation = 1.3 Number of Observations = 12 Blind Sample ID = M212 Mean = 26.00 % Relative Standard Deviation = 1.0 Number of Observations = 12 Blind Sample ID = M210 Mean = 70.93 % Relative Standard Deviation = 2.6 Number of Observations = 8 Blind Sample ID = M208 Mean = 42.91 % Relative Standard Deviation = 0.2 Number of Observations = 4 Blind Sample ID = M206 Mean = 42.29 % Relative Standard Deviation = 0.8 Number of Observations = 4 Blind Sample ID = M204 Mean = 18.45 % Relative Standard Deviation = 0.4 Number of Observations = 4 Blind Sample ID = M202 Mean = 32.99 % Relative Standard Deviation = 2.9 Number of Observations = 8 Blind Sample ID = 75206-25DIW Mean = 32.67 % Relative Standard Deviation = 5.0 Number of Observations = 4 Blind Sample ID = 75204-25DIW Mean = 15.00 % Relative Standard Deviation = 6.2 Number of Observations = 14 Blind Sample ID = 75202-25DIW Mean = 23.15 % Relative Standard Deviation = 3.2 Number of Observations = 12 Blind Sample ID = 75200-25DIW Mean = 28.39 % Relative Standard Deviation = 1.7 Number of Observations = 21 Blind Sample ID = 75198-25DIW Mean = 61.62 % Relative Standard Deviation = 1.0 Number of Observations = 16 Blind Sample ID = 75196-25DIW Mean = 47.33 % Relative Standard Deviation = 1.0 Number of Observations = 36 Blind Sample ID = 75194-25DIW Mean = 19.25 % Relative Standard Deviation = 2.1 Number of Observations = 40 Blind Sample ID = 75192-25DIW Mean = 37.16 % Relative Standard Deviation = 2.3 Number of Observations = 31 Blind Sample ID = 75190-25DIW Mean = 43.01 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = 75190-25192 Mean = 65.62 % Relative Standard Deviation = 1.4 Number of Observations = 42 Blind Sample ID = 75188-25DIW Mean = 77.39 % Relative Standard Deviation = 2.2 Number of Observations = 22 Blind Sample ID = 75188-25190 Mean = 39.43 % Relative Standard Deviation = 1.6 Number of Observations = 24 Blind Sample ID = 75186-25DIW Mean = 32.39 % Relative Standard Deviation = 6.5 Number of Observations = 47 Blind Sample ID = 75184-25DIW Mean = 54.99 % Relative Standard Deviation = 0.7 Number of Observations = 23 Blind Sample ID = 75184-25188 Mean = 27.48 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = 75182-25DIW Mean = 45.88 % Relative Standard Deviation = 0.9 Number of Observations = 47 Blind Sample ID = 75180-25DIW Mean = 24.99 % Relative Standard Deviation = 1.0 Number of Observations = 24 Blind Sample ID = 75178-25DIW Mean = 21.06 % Relative Standard Deviation = 0.9 Number of Observations = 47 Blind Sample ID = 75176-25DIW Mean = 50.94 % Relative Standard Deviation = 0.5 Number of Observations = 22 Blind Sample ID = 75174-25DIW Mean = 27.38 % Relative Standard Deviation = 0.9 Number of Observations = 24 Blind Sample ID = 75172-25DIW Mean = 33.37 % Relative Standard Deviation = 0.9 Number of Observations = 21 Blind Sample ID = 75172-25176 Mean = 41.61 % Relative Standard Deviation = 0.2 Number of Observations = 4 Blind Sample ID = 25206-75204 Mean = 24.15 % Relative Standard Deviation = 0.4 Number of Observations = 4 Blind Sample ID = 25204-75202 Mean = 36.68 % Relative Standard Deviation = 0.2 Number of Observations = 4 Blind Sample ID = 25202-75206 Mean = 32.32 % Relative Standard Deviation = 2.2 Number of Observations = 12 Blind Sample ID = 25202-75198 Mean = 21.41 % Relative Standard Deviation = 2.9 Number of Observations = 12 Blind Sample ID = 25200-75202 Mean = 31.85 % Relative Standard Deviation = 2.9 Number of Observations = 12 Blind Sample ID = 25198-75200 Mean = 55.88 % Relative Standard Deviation = 0.6 Number of Observations = 12 Blind Sample ID = 25198-75194 Mean = 47.99 % Relative Standard Deviation = 0.5 Number of Observations = 12 Blind Sample ID = 25196-75198 Mean = 76.64 % Relative Standard Deviation = 0.4 Number of Observations = 12 Blind Sample ID = 25194-75196 Mean = 34.07 % Relative Standard Deviation = 1.4 Number of Observations = 16 Blind Sample ID = 25194-75192 Mean = 42.72 % Relative Standard Deviation = 1.1 Number of Observations = 16 Blind Sample ID = 25192-75190 Mean = 58.90 % Relative Standard Deviation = 1.1 Number of Observations = 16 Blind Sample ID = 25190-75194 Mean = 39.85 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = 25188-75192 Mean = 77.85 % Relative Standard Deviation = 0.8 Number of Observations = 24 Blind Sample ID = 25186-75188 Mean = 49.79 % Relative Standard Deviation = 1.2 Number of Observations = 23 Blind Sample ID = 25184-75186 Mean = 37.98 % Relative Standard Deviation = 2.0 Number of Observations = 24 Blind Sample ID = 25184-75182 Mean = 54.18 % Relative Standard Deviation = 1.3 Number of Observations = 24 Blind Sample ID = 25182-75180 Mean = 48.27 % Relative Standard Deviation = 0.8 Number of Observations = 23 Blind Sample ID = 25180-75184 Mean = 39.31 % Relative Standard Deviation = 0.5 Number of Observations = 24 Blind Sample ID = 25180-75178 Mean = 35.44 % Relative Standard Deviation = 0.7 Number of Observations = 23 Blind Sample ID = 25180-75176 Mean = 28.66 % Relative Standard Deviation = 0.9 Number of Observations = 23 Blind Sample ID = 25178-75176 Mean = 37.02 % Relative Standard Deviation = 0.7 Number of Observations = 22 Blind Sample ID = 25174-75176 Mean = 58.90 % Relative Standard Deviation = 0.4 Number of Observations = 22 Blind Sample ID = 25172-75174
The SGPlot Procedure


- Alkalinity (as CaCO3), FIL, TITR -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 29801, MCode: TT040
Dates: 10/12/06 through 09/29/21
Open Data Set

Mean = 14.86 % Relative Standard Deviation = 1.6 Number of Observations = 6 Blind Sample ID = M232 Mean = 52.67 % Relative Standard Deviation = 0.5 Number of Observations = 8 Blind Sample ID = M230 Mean = 35.27 % Relative Standard Deviation = 1.6 Number of Observations = 12 Blind Sample ID = M228 Mean = 50.63 % Relative Standard Deviation = 1.9 Number of Observations = 16 Blind Sample ID = M226 Mean = 23.91 % Relative Standard Deviation = 1.6 Number of Observations = 18 Blind Sample ID = M224 Mean = 58.85 % Relative Standard Deviation = 1.1 Number of Observations = 22 Blind Sample ID = M222 Mean = 53.67 % Relative Standard Deviation = 2.0 Number of Observations = 17 Blind Sample ID = M220 Mean = 30.34 % Relative Standard Deviation = 1.6 Number of Observations = 24 Blind Sample ID = M218 Mean = 30.65 % Relative Standard Deviation = 1.1 Number of Observations = 16 Blind Sample ID = M216 Mean = 41.69 % Relative Standard Deviation = 1.4 Number of Observations = 24 Blind Sample ID = M214 Mean = 23.69 % Relative Standard Deviation = 0.9 Number of Observations = 20 Blind Sample ID = M212 Mean = 26.32 % Relative Standard Deviation = 5.1 Number of Observations = 24 Blind Sample ID = M210 Mean = 70.98 % Relative Standard Deviation = 4.0 Number of Observations = 14 Blind Sample ID = M208 Mean = 43.09 % Relative Standard Deviation = 1.0 Number of Observations = 8 Blind Sample ID = M206 Mean = 42.24 % Relative Standard Deviation = 1.3 Number of Observations = 8 Blind Sample ID = M204 Mean = 18.64 % Relative Standard Deviation = 0.9 Number of Observations = 8 Blind Sample ID = M202 Mean = 32.94 % Relative Standard Deviation = 2.2 Number of Observations = 16 Blind Sample ID = 75206-25DIW Mean = 32.52 % Relative Standard Deviation = 3.5 Number of Observations = 8 Blind Sample ID = 75204-25DIW Mean = 14.56 % Relative Standard Deviation = 3.9 Number of Observations = 18 Blind Sample ID = 75202-25DIW Mean = 23.24 % Relative Standard Deviation = 2.5 Number of Observations = 12 Blind Sample ID = 75200-25DIW Mean = 28.28 % Relative Standard Deviation = 2.1 Number of Observations = 21 Blind Sample ID = 75198-25DIW Mean = 61.14 % Relative Standard Deviation = 2.3 Number of Observations = 16 Blind Sample ID = 75196-25DIW Mean = 47.11 % Relative Standard Deviation = 1.2 Number of Observations = 36 Blind Sample ID = 75194-25DIW Mean = 19.21 % Relative Standard Deviation = 2.0 Number of Observations = 40 Blind Sample ID = 75192-25DIW Mean = 37.45 % Relative Standard Deviation = 2.0 Number of Observations = 31 Blind Sample ID = 75190-25DIW Mean = 42.94 % Relative Standard Deviation = 3.7 Number of Observations = 24 Blind Sample ID = 75190-25192 Mean = 65.64 % Relative Standard Deviation = 0.8 Number of Observations = 41 Blind Sample ID = 75188-25DIW Mean = 77.43 % Relative Standard Deviation = 2.4 Number of Observations = 21 Blind Sample ID = 75188-25190 Mean = 39.36 % Relative Standard Deviation = 1.5 Number of Observations = 24 Blind Sample ID = 75186-25DIW Mean = 32.12 % Relative Standard Deviation = 8.3 Number of Observations = 46 Blind Sample ID = 75184-25DIW Mean = 54.96 % Relative Standard Deviation = 1.1 Number of Observations = 22 Blind Sample ID = 75184-25188 Mean = 27.55 % Relative Standard Deviation = 2.9 Number of Observations = 23 Blind Sample ID = 75182-25DIW Mean = 45.93 % Relative Standard Deviation = 1.3 Number of Observations = 48 Blind Sample ID = 75180-25DIW Mean = 24.95 % Relative Standard Deviation = 0.6 Number of Observations = 24 Blind Sample ID = 75178-25DIW Mean = 21.10 % Relative Standard Deviation = 1.1 Number of Observations = 46 Blind Sample ID = 75176-25DIW Mean = 50.91 % Relative Standard Deviation = 0.5 Number of Observations = 23 Blind Sample ID = 75174-25DIW Mean = 27.40 % Relative Standard Deviation = 0.9 Number of Observations = 24 Blind Sample ID = 75172-25DIW Mean = 33.36 % Relative Standard Deviation = 0.5 Number of Observations = 20 Blind Sample ID = 75172-25176 Mean = 42.12 % Relative Standard Deviation = 3.3 Number of Observations = 8 Blind Sample ID = 25206-75204 Mean = 24.21 % Relative Standard Deviation = 0.5 Number of Observations = 8 Blind Sample ID = 25204-75202 Mean = 36.54 % Relative Standard Deviation = 0.3 Number of Observations = 8 Blind Sample ID = 25202-75206 Mean = 32.29 % Relative Standard Deviation = 1.8 Number of Observations = 12 Blind Sample ID = 25202-75198 Mean = 21.37 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = 25200-75202 Mean = 31.96 % Relative Standard Deviation = 2.8 Number of Observations = 12 Blind Sample ID = 25198-75200 Mean = 55.88 % Relative Standard Deviation = 0.4 Number of Observations = 12 Blind Sample ID = 25198-75194 Mean = 47.92 % Relative Standard Deviation = 0.3 Number of Observations = 12 Blind Sample ID = 25196-75198 Mean = 76.62 % Relative Standard Deviation = 0.4 Number of Observations = 12 Blind Sample ID = 25194-75196 Mean = 33.96 % Relative Standard Deviation = 1.5 Number of Observations = 16 Blind Sample ID = 25194-75192 Mean = 42.77 % Relative Standard Deviation = 1.0 Number of Observations = 16 Blind Sample ID = 25192-75190 Mean = 58.82 % Relative Standard Deviation = 1.2 Number of Observations = 16 Blind Sample ID = 25190-75194 Mean = 39.61 % Relative Standard Deviation = 3.1 Number of Observations = 24 Blind Sample ID = 25188-75192 Mean = 77.79 % Relative Standard Deviation = 0.8 Number of Observations = 21 Blind Sample ID = 25186-75188 Mean = 49.70 % Relative Standard Deviation = 1.2 Number of Observations = 24 Blind Sample ID = 25184-75186 Mean = 37.73 % Relative Standard Deviation = 2.5 Number of Observations = 22 Blind Sample ID = 25184-75182 Mean = 54.07 % Relative Standard Deviation = 2.0 Number of Observations = 23 Blind Sample ID = 25182-75180 Mean = 48.20 % Relative Standard Deviation = 0.9 Number of Observations = 23 Blind Sample ID = 25180-75184 Mean = 39.34 % Relative Standard Deviation = 0.5 Number of Observations = 24 Blind Sample ID = 25180-75178 Mean = 35.47 % Relative Standard Deviation = 0.6 Number of Observations = 23 Blind Sample ID = 25180-75176 Mean = 28.61 % Relative Standard Deviation = 1.0 Number of Observations = 23 Blind Sample ID = 25178-75176 Mean = 36.97 % Relative Standard Deviation = 0.7 Number of Observations = 21 Blind Sample ID = 25174-75176 Mean = 59.03 % Relative Standard Deviation = 0.3 Number of Observations = 21 Blind Sample ID = 25172-75174
The SGPlot Procedure


- Bromide, FIL, IC -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 71870, MCode: IC027
Dates: 10/21/10 through 09/30/21
Open Data Set

Mean = 0.42 % Relative Standard Deviation = 1.7 Number of Observations = 6 Blind Sample ID = M232 Mean = 0.04 % Relative Standard Deviation = 9.1 Number of Observations = 8 Blind Sample ID = M230 Mean = 0.16 % Relative Standard Deviation = 9.8 Number of Observations = 10 Blind Sample ID = M228 Mean = 0.05 % Relative Standard Deviation = 9.4 Number of Observations = 14 Blind Sample ID = M226 Mean = 0.24 % Relative Standard Deviation = 5.0 Number of Observations = 16 Blind Sample ID = M224 Mean = 0.08 % Relative Standard Deviation = 8.9 Number of Observations = 19 Blind Sample ID = M222 Mean = 0.22 % Relative Standard Deviation = 4.4 Number of Observations = 17 Blind Sample ID = M220 Mean = 0.17 % Relative Standard Deviation = 6.4 Number of Observations = 24 Blind Sample ID = M218 Mean = 0.28 % Relative Standard Deviation = 1.7 Number of Observations = 16 Blind Sample ID = M216 Mean = 0.13 % Relative Standard Deviation = 20.2 Number of Observations = 24 Blind Sample ID = M214 Mean = 0.27 % Relative Standard Deviation = 4.1 Number of Observations = 20 Blind Sample ID = M212 Mean = 0.09 % Relative Standard Deviation = 8.6 Number of Observations = 24 Blind Sample ID = M210 Mean = 0.13 % Relative Standard Deviation = 5.7 Number of Observations = 14 Blind Sample ID = M208 Mean = 0.69 % Relative Standard Deviation = 1.5 Number of Observations = 8 Blind Sample ID = M206 Mean = 0.26 % Relative Standard Deviation = 5.8 Number of Observations = 8 Blind Sample ID = M204 Mean = 0.46 % Relative Standard Deviation = 2.0 Number of Observations = 8 Blind Sample ID = M202 Mean = 0.49 % Relative Standard Deviation = 4.6 Number of Observations = 16 Blind Sample ID = 75206-25DIW Mean = 0.19 % Relative Standard Deviation = 4.1 Number of Observations = 8 Blind Sample ID = 75204-25DIW Mean = 0.34 % Relative Standard Deviation = 2.6 Number of Observations = 18 Blind Sample ID = 75202-25DIW Mean = 0.47 % Relative Standard Deviation = 1.8 Number of Observations = 12 Blind Sample ID = 75200-25DIW Mean = 0.08 % Relative Standard Deviation = 17.6 Number of Observations = 20 Blind Sample ID = 75198-25DIW Mean = 0.11 % Relative Standard Deviation = 17.0 Number of Observations = 16 Blind Sample ID = 75196-25DIW Mean = 0.05 % Relative Standard Deviation = 17.3 Number of Observations = 36 Blind Sample ID = 75194-25DIW Mean = 0.14 % Relative Standard Deviation = 7.8 Number of Observations = 40 Blind Sample ID = 75192-25DIW Mean = 0.20 % Relative Standard Deviation = 5.6 Number of Observations = 30 Blind Sample ID = 75190-25DIW Mean = 0.26 % Relative Standard Deviation = 4.7 Number of Observations = 23 Blind Sample ID = 75190-25192 Mean = 0.06 % Relative Standard Deviation = 9.7 Number of Observations = 21 Blind Sample ID = 75188-25DIW Mean = 0.14 % Relative Standard Deviation = 8.8 Number of Observations = 22 Blind Sample ID = 75188-25190 Mean = 0.36 % Relative Standard Deviation = 3.1 Number of Observations = 8 Blind Sample ID = 25206-75204 Mean = 0.40 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = 25204-75202 Mean = 0.60 % Relative Standard Deviation = 1.4 Number of Observations = 8 Blind Sample ID = 25202-75206 Mean = 0.18 % Relative Standard Deviation = 3.4 Number of Observations = 12 Blind Sample ID = 25202-75198 Mean = 0.49 % Relative Standard Deviation = 3.6 Number of Observations = 12 Blind Sample ID = 25200-75202 Mean = 0.50 % Relative Standard Deviation = 1.3 Number of Observations = 11 Blind Sample ID = 25198-75200 Mean = 0.07 % Relative Standard Deviation = 18.5 Number of Observations = 12 Blind Sample ID = 25198-75194 Mean = 0.10 % Relative Standard Deviation = 17.7 Number of Observations = 12 Blind Sample ID = 25196-75198 Mean = 0.13 % Relative Standard Deviation = 9.1 Number of Observations = 12 Blind Sample ID = 25194-75196 Mean = 0.15 % Relative Standard Deviation = 6.1 Number of Observations = 16 Blind Sample ID = 25194-75192 Mean = 0.24 % Relative Standard Deviation = 3.9 Number of Observations = 16 Blind Sample ID = 25192-75190 Mean = 0.12 % Relative Standard Deviation = 21.6 Number of Observations = 16 Blind Sample ID = 25190-75194 Mean = 0.17 % Relative Standard Deviation = 5.8 Number of Observations = 24 Blind Sample ID = 25188-75192
The SGPlot Procedure


- Calcium, FIL, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00915, MCode: PLA11
Dates: 10/03/06 through 09/29/21
Open Data Set

Mean = 110.60 % Relative Standard Deviation = 2.2 Number of Observations = 15 Blind Sample ID = T239 Mean = 31.55 % Relative Standard Deviation = 2.2 Number of Observations = 13 Blind Sample ID = T237 Mean = 17.09 % Relative Standard Deviation = 1.7 Number of Observations = 28 Blind Sample ID = T235 Mean = 17.46 % Relative Standard Deviation = 2.4 Number of Observations = 25 Blind Sample ID = T233 Mean = 29.59 % Relative Standard Deviation = 1.7 Number of Observations = 41 Blind Sample ID = T231 Mean = 45.68 % Relative Standard Deviation = 2.0 Number of Observations = 43 Blind Sample ID = T229 Mean = 10.68 % Relative Standard Deviation = 1.9 Number of Observations = 44 Blind Sample ID = T227 Mean = 117.38 % Relative Standard Deviation = 2.2 Number of Observations = 41 Blind Sample ID = T225 Mean = 3.69 % Relative Standard Deviation = 2.2 Number of Observations = 47 Blind Sample ID = T223 Mean = 17.51 % Relative Standard Deviation = 2.2 Number of Observations = 42 Blind Sample ID = T221 Mean = 20.95 % Relative Standard Deviation = 2.1 Number of Observations = 42 Blind Sample ID = T219 Mean = 32.10 % Relative Standard Deviation = 2.5 Number of Observations = 48 Blind Sample ID = T217 Mean = 31.12 % Relative Standard Deviation = 3.2 Number of Observations = 30 Blind Sample ID = T215 Mean = 26.38 % Relative Standard Deviation = 3.7 Number of Observations = 28 Blind Sample ID = T211 Mean = 19.07 % Relative Standard Deviation = 3.0 Number of Observations = 16 Blind Sample ID = T209 Mean = 0.40 % Relative Standard Deviation = 2.1 Number of Observations = 8 Blind Sample ID = P71 Mean = 0.84 % Relative Standard Deviation = 2.1 Number of Observations = 7 Blind Sample ID = P70 Mean = 0.22 % Relative Standard Deviation = 2.6 Number of Observations = 16 Blind Sample ID = P69 Mean = 0.92 % Relative Standard Deviation = 1.4 Number of Observations = 8 Blind Sample ID = P68 Mean = 0.29 % Relative Standard Deviation = 2.4 Number of Observations = 16 Blind Sample ID = P67 Mean = 0.97 % Relative Standard Deviation = 2.0 Number of Observations = 7 Blind Sample ID = P66 Mean = 0.31 % Relative Standard Deviation = 3.0 Number of Observations = 14 Blind Sample ID = P65 Mean = 0.85 % Relative Standard Deviation = 1.6 Number of Observations = 8 Blind Sample ID = P64 Mean = 0.85 % Relative Standard Deviation = 2.2 Number of Observations = 16 Blind Sample ID = P63 Mean = 1.90 % Relative Standard Deviation = 1.6 Number of Observations = 8 Blind Sample ID = P62 Mean = 0.60 % Relative Standard Deviation = 4.5 Number of Observations = 16 Blind Sample ID = P61 Mean = 0.66 % Relative Standard Deviation = 3.6 Number of Observations = 8 Blind Sample ID = P60 Mean = 0.51 % Relative Standard Deviation = 3.5 Number of Observations = 16 Blind Sample ID = P59 Mean = 1.87 % Relative Standard Deviation = 2.7 Number of Observations = 8 Blind Sample ID = P58 Mean = 0.33 % Relative Standard Deviation = 4.3 Number of Observations = 16 Blind Sample ID = P57 Mean = 1.00 % Relative Standard Deviation = 5.0 Number of Observations = 8 Blind Sample ID = P56 Mean = 1.00 % Relative Standard Deviation = 3.9 Number of Observations = 14 Blind Sample ID = P55 Mean = 0.25 % Relative Standard Deviation = 1.2 Number of Observations = 8 Blind Sample ID = P54 Mean = 0.74 % Relative Standard Deviation = 1.8 Number of Observations = 16 Blind Sample ID = P53 Mean = 0.42 % Relative Standard Deviation = 2.6 Number of Observations = 8 Blind Sample ID = P52 Mean = 0.32 % Relative Standard Deviation = 4.5 Number of Observations = 24 Blind Sample ID = P51 Mean = 0.85 % Relative Standard Deviation = 3.5 Number of Observations = 32 Blind Sample ID = P50 Mean = 1.91 % Relative Standard Deviation = 5.5 Number of Observations = 31 Blind Sample ID = P49 Mean = 0.55 % Relative Standard Deviation = 4.6 Number of Observations = 30 Blind Sample ID = P48 Mean = 1.42 % Relative Standard Deviation = 3.0 Number of Observations = 14 Blind Sample ID = P47 Mean = 0.44 % Relative Standard Deviation = 3.7 Number of Observations = 25 Blind Sample ID = P46 Mean = 0.14 % Relative Standard Deviation = 6.2 Number of Observations = 31 Blind Sample ID = P45 Mean = 0.53 % Relative Standard Deviation = 4.4 Number of Observations = 28 Blind Sample ID = P44 Mean = 0.53 % Relative Standard Deviation = 3.8 Number of Observations = 17 Blind Sample ID = P43 Mean = 49.37 % Relative Standard Deviation = 3.5 Number of Observations = 28 Blind Sample ID = 75213-25DIW Mean = 19.51 % Relative Standard Deviation = 3.5 Number of Observations = 16 Blind Sample ID = 75211-25DIW Mean = 13.92 % Relative Standard Deviation = 4.6 Number of Observations = 27 Blind Sample ID = 75209-25DIW Mean = 17.98 % Relative Standard Deviation = 2.0 Number of Observations = 14 Blind Sample ID = 75207-25DIW Mean = 6.19 % Relative Standard Deviation = 5.1 Number of Observations = 30 Blind Sample ID = 75205-25DIW Mean = 8.48 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = 75203-25DIW Mean = 40.70 % Relative Standard Deviation = 2.9 Number of Observations = 37 Blind Sample ID = 75201-25DIW Mean = 16.70 % Relative Standard Deviation = 2.6 Number of Observations = 18 Blind Sample ID = 75199-25201 Mean = 42.18 % Relative Standard Deviation = 3.4 Number of Observations = 32 Blind Sample ID = 75197-25DIW Mean = 21.07 % Relative Standard Deviation = 2.9 Number of Observations = 16 Blind Sample ID = 75195-25197 Mean = 13.89 % Relative Standard Deviation = 3.5 Number of Observations = 32 Blind Sample ID = 75193-25DIW Mean = 27.85 % Relative Standard Deviation = 2.1 Number of Observations = 18 Blind Sample ID = 75193-25197 Mean = 22.96 % Relative Standard Deviation = 3.0 Number of Observations = 30 Blind Sample ID = 75191-25DIW Mean = 23.20 % Relative Standard Deviation = 3.6 Number of Observations = 32 Blind Sample ID = 75189-25DIW Mean = 27.93 % Relative Standard Deviation = 3.0 Number of Observations = 18 Blind Sample ID = 75189-25193 Mean = 30.16 % Relative Standard Deviation = 3.8 Number of Observations = 14 Blind Sample ID = 75189-25191 Mean = 2.94 % Relative Standard Deviation = 2.9 Number of Observations = 29 Blind Sample ID = 75187-25DIW Mean = 9.58 % Relative Standard Deviation = 2.4 Number of Observations = 14 Blind Sample ID = 75185-25DIW Mean = 8.65 % Relative Standard Deviation = 4.0 Number of Observations = 29 Blind Sample ID = 75183-25DIW Mean = 10.35 % Relative Standard Deviation = 1.8 Number of Observations = 11 Blind Sample ID = 75181-25DIW Mean = 14.34 % Relative Standard Deviation = 2.7 Number of Observations = 16 Blind Sample ID = 75179-25DIW Mean = 17.56 % Relative Standard Deviation = 4.0 Number of Observations = 16 Blind Sample ID = 50187-50191 Mean = 17.72 % Relative Standard Deviation = 2.7 Number of Observations = 18 Blind Sample ID = 50187-50189 Mean = 7.74 % Relative Standard Deviation = 3.0 Number of Observations = 16 Blind Sample ID = 50187-50183 Mean = 8.39 % Relative Standard Deviation = 3.9 Number of Observations = 16 Blind Sample ID = 50185-50187 Mean = 12.23 % Relative Standard Deviation = 2.0 Number of Observations = 18 Blind Sample ID = 50183-50185 Mean = 35.96 % Relative Standard Deviation = 4.2 Number of Observations = 16 Blind Sample ID = 25213-75211 Mean = 20.27 % Relative Standard Deviation = 3.1 Number of Observations = 14 Blind Sample ID = 25211-75209 Mean = 53.85 % Relative Standard Deviation = 1.5 Number of Observations = 14 Blind Sample ID = 25209-75213 Mean = 22.83 % Relative Standard Deviation = 1.8 Number of Observations = 16 Blind Sample ID = 25209-75207 Mean = 12.34 % Relative Standard Deviation = 2.7 Number of Observations = 14 Blind Sample ID = 25207-75205 Mean = 15.99 % Relative Standard Deviation = 1.7 Number of Observations = 14 Blind Sample ID = 25205-75209 Mean = 42.52 % Relative Standard Deviation = 2.9 Number of Observations = 14 Blind Sample ID = 25205-75201 Mean = 9.13 % Relative Standard Deviation = 2.2 Number of Observations = 12 Blind Sample ID = 25203-75205 Mean = 22.40 % Relative Standard Deviation = 2.5 Number of Observations = 14 Blind Sample ID = 25201-75203 Mean = 56.06 % Relative Standard Deviation = 2.7 Number of Observations = 18 Blind Sample ID = 25201-75197 Mean = 41.81 % Relative Standard Deviation = 2.0 Number of Observations = 20 Blind Sample ID = 25199-75201 Mean = 17.20 % Relative Standard Deviation = 2.0 Number of Observations = 18 Blind Sample ID = 25197-75199 Mean = 43.46 % Relative Standard Deviation = 5.9 Number of Observations = 13 Blind Sample ID = 25195-75197 Mean = 12.12 % Relative Standard Deviation = 2.8 Number of Observations = 16 Blind Sample ID = 25193-75195 Mean = 20.93 % Relative Standard Deviation = 3.1 Number of Observations = 16 Blind Sample ID = 25191-75193 Mean = 13.11 % Relative Standard Deviation = 3.0 Number of Observations = 23 Blind Sample ID = 25183-75181 Mean = 17.51 % Relative Standard Deviation = 2.2 Number of Observations = 15 Blind Sample ID = 25181-75179 Mean = 13.51 % Relative Standard Deviation = 2.1 Number of Observations = 8 Blind Sample ID = 25179-75183
The SGPlot Procedure


- Calcium, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00916, MCode: PLA15
Dates: 12/08/06 through 06/30/16
Open Data Set

Mean = 18.77 % Relative Standard Deviation = 3.4 Number of Observations = 3 Blind Sample ID = 75211-25DIW Mean = 13.24 % Relative Standard Deviation = 1.7 Number of Observations = 10 Blind Sample ID = 75209-25DIW Mean = 17.79 % Relative Standard Deviation = 1.6 Number of Observations = 8 Blind Sample ID = 75207-25DIW Mean = 6.13 % Relative Standard Deviation = 4.5 Number of Observations = 14 Blind Sample ID = 75205-25DIW Mean = 8.38 % Relative Standard Deviation = 1.8 Number of Observations = 6 Blind Sample ID = 75203-25DIW Mean = 39.65 % Relative Standard Deviation = 1.9 Number of Observations = 16 Blind Sample ID = 75201-25DIW Mean = 16.19 % Relative Standard Deviation = 0.9 Number of Observations = 6 Blind Sample ID = 75199-25201 Mean = 39.95 % Relative Standard Deviation = 1.4 Number of Observations = 16 Blind Sample ID = 75197-25DIW Mean = 20.73 % Relative Standard Deviation = 1.3 Number of Observations = 5 Blind Sample ID = 75195-25197 Mean = 13.31 % Relative Standard Deviation = 1.9 Number of Observations = 16 Blind Sample ID = 75193-25DIW Mean = 26.92 % Relative Standard Deviation = 1.0 Number of Observations = 8 Blind Sample ID = 75193-25197 Mean = 21.69 % Relative Standard Deviation = 2.8 Number of Observations = 16 Blind Sample ID = 75191-25DIW Mean = 22.39 % Relative Standard Deviation = 4.8 Number of Observations = 12 Blind Sample ID = 75189-25DIW Mean = 26.33 % Relative Standard Deviation = 2.9 Number of Observations = 8 Blind Sample ID = 75189-25193 Mean = 29.73 % Relative Standard Deviation = 2.9 Number of Observations = 6 Blind Sample ID = 75189-25191 Mean = 2.78 % Relative Standard Deviation = 3.7 Number of Observations = 12 Blind Sample ID = 75187-25DIW Mean = 9.03 % Relative Standard Deviation = 2.0 Number of Observations = 6 Blind Sample ID = 75185-25DIW Mean = 8.39 % Relative Standard Deviation = 1.9 Number of Observations = 13 Blind Sample ID = 75183-25DIW Mean = 9.87 % Relative Standard Deviation = 4.2 Number of Observations = 8 Blind Sample ID = 75181-25DIW Mean = 13.90 % Relative Standard Deviation = 1.7 Number of Observations = 4 Blind Sample ID = 75179-25DIW Mean = 16.70 % Relative Standard Deviation = 1.9 Number of Observations = 6 Blind Sample ID = 50187-50191 Mean = 16.95 % Relative Standard Deviation = 3.2 Number of Observations = 8 Blind Sample ID = 50187-50189 Mean = 7.41 % Relative Standard Deviation = 2.4 Number of Observations = 6 Blind Sample ID = 50187-50183 Mean = 7.99 % Relative Standard Deviation = 2.0 Number of Observations = 8 Blind Sample ID = 50185-50187 Mean = 12.44 % Relative Standard Deviation = 4.2 Number of Observations = 8 Blind Sample ID = 50183-50185 Mean = 34.57 % Relative Standard Deviation = 2.4 Number of Observations = 4 Blind Sample ID = 25213-75211 Mean = 21.95 % Relative Standard Deviation = 1.8 Number of Observations = 8 Blind Sample ID = 25209-75207 Mean = 11.96 % Relative Standard Deviation = 3.7 Number of Observations = 8 Blind Sample ID = 25207-75205 Mean = 15.57 % Relative Standard Deviation = 1.4 Number of Observations = 8 Blind Sample ID = 25205-75209 Mean = 41.26 % Relative Standard Deviation = 1.4 Number of Observations = 6 Blind Sample ID = 25205-75201 Mean = 8.95 % Relative Standard Deviation = 2.7 Number of Observations = 6 Blind Sample ID = 25203-75205 Mean = 21.51 % Relative Standard Deviation = 1.7 Number of Observations = 7 Blind Sample ID = 25201-75203 Mean = 54.31 % Relative Standard Deviation = 1.8 Number of Observations = 6 Blind Sample ID = 25201-75197 Mean = 40.51 % Relative Standard Deviation = 0.9 Number of Observations = 8 Blind Sample ID = 25199-75201 Mean = 16.52 % Relative Standard Deviation = 2.1 Number of Observations = 6 Blind Sample ID = 25197-75199 Mean = 42.75 % Relative Standard Deviation = 2.1 Number of Observations = 5 Blind Sample ID = 25195-75197 Mean = 11.99 % Relative Standard Deviation = 1.7 Number of Observations = 6 Blind Sample ID = 25193-75195 Mean = 20.58 % Relative Standard Deviation = 3.6 Number of Observations = 6 Blind Sample ID = 25191-75193 Mean = 12.94 % Relative Standard Deviation = 2.7 Number of Observations = 15 Blind Sample ID = 25183-75181 Mean = 17.67 % Relative Standard Deviation = 3.1 Number of Observations = 8 Blind Sample ID = 25181-75179
The SGPlot Procedure


- Calcium, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00916, MCode: PLO07
Dates: 05/28/15 through 09/20/21
Open Data Set

Mean = 106.14 % Relative Standard Deviation = 5.7 Number of Observations = 6 Blind Sample ID = T239 Mean = 30.62 % Relative Standard Deviation = 2.7 Number of Observations = 4 Blind Sample ID = T237 Mean = 16.62 % Relative Standard Deviation = 2.9 Number of Observations = 14 Blind Sample ID = T235 Mean = 17.29 % Relative Standard Deviation = 3.0 Number of Observations = 12 Blind Sample ID = T233 Mean = 29.69 % Relative Standard Deviation = 1.8 Number of Observations = 18 Blind Sample ID = T231 Mean = 45.28 % Relative Standard Deviation = 2.3 Number of Observations = 21 Blind Sample ID = T229 Mean = 10.73 % Relative Standard Deviation = 1.4 Number of Observations = 24 Blind Sample ID = T227 Mean = 117.19 % Relative Standard Deviation = 2.8 Number of Observations = 18 Blind Sample ID = T225 Mean = 3.68 % Relative Standard Deviation = 1.7 Number of Observations = 23 Blind Sample ID = T223 Mean = 17.36 % Relative Standard Deviation = 2.4 Number of Observations = 18 Blind Sample ID = T221 Mean = 20.75 % Relative Standard Deviation = 3.1 Number of Observations = 18 Blind Sample ID = T219 Mean = 31.96 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = T217 Mean = 30.86 % Relative Standard Deviation = 2.5 Number of Observations = 15 Blind Sample ID = T215 Mean = 25.94 % Relative Standard Deviation = 3.7 Number of Observations = 12 Blind Sample ID = T211 Mean = 18.64 % Relative Standard Deviation = 2.9 Number of Observations = 8 Blind Sample ID = T209 Mean = 49.29 % Relative Standard Deviation = 4.3 Number of Observations = 11 Blind Sample ID = 75213-25DIW Mean = 19.68 % Relative Standard Deviation = 1.9 Number of Observations = 5 Blind Sample ID = 75211-25DIW Mean = 14.31 % Relative Standard Deviation = 1.9 Number of Observations = 4 Blind Sample ID = 75209-25DIW Mean = 35.98 % Relative Standard Deviation = 2.0 Number of Observations = 4 Blind Sample ID = 25213-75211 Mean = 20.63 % Relative Standard Deviation = 2.2 Number of Observations = 4 Blind Sample ID = 25211-75209 Mean = 53.17 % Relative Standard Deviation = 1.7 Number of Observations = 4 Blind Sample ID = 25209-75213
The SGPlot Procedure


- Chloride, FIL, IC -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00940, MCode: IC022
Dates: 10/05/06 through 09/29/21
Open Data Set

Mean = 2.97 % Relative Standard Deviation = 1.8 Number of Observations = 8 Blind Sample ID = P71 Mean = 6.96 % Relative Standard Deviation = 2.8 Number of Observations = 6 Blind Sample ID = P70 Mean = 2.59 % Relative Standard Deviation = 3.0 Number of Observations = 16 Blind Sample ID = P69 Mean = 2.23 % Relative Standard Deviation = 1.3 Number of Observations = 8 Blind Sample ID = P68 Mean = 2.59 % Relative Standard Deviation = 3.8 Number of Observations = 16 Blind Sample ID = P67 Mean = 8.70 % Relative Standard Deviation = 0.9 Number of Observations = 7 Blind Sample ID = P66 Mean = 2.00 % Relative Standard Deviation = 3.6 Number of Observations = 14 Blind Sample ID = P65 Mean = 6.84 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = P64 Mean = 4.91 % Relative Standard Deviation = 2.1 Number of Observations = 16 Blind Sample ID = P63 Mean = 2.28 % Relative Standard Deviation = 0.5 Number of Observations = 8 Blind Sample ID = P62 Mean = 11.93 % Relative Standard Deviation = 1.6 Number of Observations = 16 Blind Sample ID = P61 Mean = 2.96 % Relative Standard Deviation = 3.1 Number of Observations = 8 Blind Sample ID = P60 Mean = 4.39 % Relative Standard Deviation = 2.4 Number of Observations = 16 Blind Sample ID = P59 Mean = 4.86 % Relative Standard Deviation = 1.6 Number of Observations = 8 Blind Sample ID = P58 Mean = 2.17 % Relative Standard Deviation = 2.5 Number of Observations = 16 Blind Sample ID = P57 Mean = 4.12 % Relative Standard Deviation = 1.3 Number of Observations = 7 Blind Sample ID = P56 Mean = 1.97 % Relative Standard Deviation = 2.1 Number of Observations = 6 Blind Sample ID = P55 Mean = 69.66 % Relative Standard Deviation = 1.5 Number of Observations = 6 Blind Sample ID = M232 Mean = 36.33 % Relative Standard Deviation = 0.7 Number of Observations = 8 Blind Sample ID = M230 Mean = 9.53 % Relative Standard Deviation = 1.2 Number of Observations = 12 Blind Sample ID = M228 Mean = 26.24 % Relative Standard Deviation = 1.1 Number of Observations = 15 Blind Sample ID = M226 Mean = 10.13 % Relative Standard Deviation = 1.0 Number of Observations = 18 Blind Sample ID = M224 Mean = 7.49 % Relative Standard Deviation = 0.9 Number of Observations = 21 Blind Sample ID = M222 Mean = 15.87 % Relative Standard Deviation = 1.0 Number of Observations = 17 Blind Sample ID = M220 Mean = 67.90 % Relative Standard Deviation = 1.3 Number of Observations = 23 Blind Sample ID = M218 Mean = 19.87 % Relative Standard Deviation = 0.9 Number of Observations = 16 Blind Sample ID = M216 Mean = 28.91 % Relative Standard Deviation = 1.1 Number of Observations = 24 Blind Sample ID = M214 Mean = 7.90 % Relative Standard Deviation = 0.8 Number of Observations = 19 Blind Sample ID = M212 Mean = 12.95 % Relative Standard Deviation = 0.8 Number of Observations = 24 Blind Sample ID = M210 Mean = 63.39 % Relative Standard Deviation = 0.6 Number of Observations = 14 Blind Sample ID = M208 Mean = 18.14 % Relative Standard Deviation = 0.7 Number of Observations = 8 Blind Sample ID = M206 Mean = 42.26 % Relative Standard Deviation = 0.8 Number of Observations = 8 Blind Sample ID = M204 Mean = 10.94 % Relative Standard Deviation = 0.7 Number of Observations = 8 Blind Sample ID = M202 Mean = 13.66 % Relative Standard Deviation = 1.3 Number of Observations = 16 Blind Sample ID = 75206-25DIW Mean = 31.67 % Relative Standard Deviation = 1.4 Number of Observations = 8 Blind Sample ID = 75204-25DIW Mean = 8.01 % Relative Standard Deviation = 1.7 Number of Observations = 18 Blind Sample ID = 75202-25DIW Mean = 13.09 % Relative Standard Deviation = 1.7 Number of Observations = 13 Blind Sample ID = 75200-25DIW Mean = 10.95 % Relative Standard Deviation = 2.4 Number of Observations = 29 Blind Sample ID = 75198-25DIW Mean = 24.21 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = 75196-25DIW Mean = 32.96 % Relative Standard Deviation = 1.6 Number of Observations = 52 Blind Sample ID = 75194-25DIW Mean = 10.02 % Relative Standard Deviation = 2.3 Number of Observations = 48 Blind Sample ID = 75192-25DIW Mean = 21.33 % Relative Standard Deviation = 1.7 Number of Observations = 40 Blind Sample ID = 75190-25DIW Mean = 24.64 % Relative Standard Deviation = 1.7 Number of Observations = 24 Blind Sample ID = 75190-25192 Mean = 21.73 % Relative Standard Deviation = 2.0 Number of Observations = 43 Blind Sample ID = 75188-25DIW Mean = 28.73 % Relative Standard Deviation = 1.6 Number of Observations = 22 Blind Sample ID = 75188-25190 Mean = 17.46 % Relative Standard Deviation = 2.3 Number of Observations = 22 Blind Sample ID = 75186-25DIW Mean = 5.81 % Relative Standard Deviation = 2.3 Number of Observations = 43 Blind Sample ID = 75184-25DIW Mean = 13.69 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = 75184-25188 Mean = 15.72 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = 75182-25DIW Mean = 21.83 % Relative Standard Deviation = 1.4 Number of Observations = 48 Blind Sample ID = 75180-25DIW Mean = 42.92 % Relative Standard Deviation = 1.4 Number of Observations = 24 Blind Sample ID = 75178-25DIW Mean = 12.42 % Relative Standard Deviation = 3.3 Number of Observations = 47 Blind Sample ID = 75176-25DIW Mean = 23.86 % Relative Standard Deviation = 1.7 Number of Observations = 23 Blind Sample ID = 75174-25DIW Mean = 11.31 % Relative Standard Deviation = 1.5 Number of Observations = 24 Blind Sample ID = 75172-25DIW Mean = 15.91 % Relative Standard Deviation = 1.9 Number of Observations = 21 Blind Sample ID = 75172-25176 Mean = 36.23 % Relative Standard Deviation = 1.4 Number of Observations = 8 Blind Sample ID = 25206-75204 Mean = 18.66 % Relative Standard Deviation = 1.6 Number of Observations = 8 Blind Sample ID = 25204-75202 Mean = 16.55 % Relative Standard Deviation = 1.8 Number of Observations = 8 Blind Sample ID = 25202-75206 Mean = 13.58 % Relative Standard Deviation = 1.8 Number of Observations = 12 Blind Sample ID = 25202-75198 Mean = 12.42 % Relative Standard Deviation = 1.0 Number of Observations = 12 Blind Sample ID = 25200-75202 Mean = 16.84 % Relative Standard Deviation = 1.2 Number of Observations = 12 Blind Sample ID = 25198-75200 Mean = 37.11 % Relative Standard Deviation = 2.0 Number of Observations = 20 Blind Sample ID = 25198-75194 Mean = 18.95 % Relative Standard Deviation = 1.1 Number of Observations = 19 Blind Sample ID = 25196-75198 Mean = 35.36 % Relative Standard Deviation = 1.3 Number of Observations = 20 Blind Sample ID = 25194-75196 Mean = 20.58 % Relative Standard Deviation = 1.4 Number of Observations = 24 Blind Sample ID = 25194-75192 Mean = 24.26 % Relative Standard Deviation = 0.8 Number of Observations = 24 Blind Sample ID = 25192-75190 Mean = 40.19 % Relative Standard Deviation = 1.0 Number of Observations = 24 Blind Sample ID = 25190-75194 Mean = 17.08 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = 25188-75192 Mean = 27.32 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = 25186-75188 Mean = 19.08 % Relative Standard Deviation = 3.6 Number of Observations = 23 Blind Sample ID = 25184-75186 Mean = 17.37 % Relative Standard Deviation = 0.9 Number of Observations = 24 Blind Sample ID = 25184-75182 Mean = 26.63 % Relative Standard Deviation = 1.2 Number of Observations = 24 Blind Sample ID = 25182-75180 Mean = 13.50 % Relative Standard Deviation = 1.4 Number of Observations = 22 Blind Sample ID = 25180-75184 Mean = 51.03 % Relative Standard Deviation = 1.5 Number of Observations = 24 Blind Sample ID = 25180-75178 Mean = 19.53 % Relative Standard Deviation = 1.3 Number of Observations = 23 Blind Sample ID = 25180-75176 Mean = 26.40 % Relative Standard Deviation = 1.0 Number of Observations = 23 Blind Sample ID = 25178-75176 Mean = 20.40 % Relative Standard Deviation = 1.6 Number of Observations = 22 Blind Sample ID = 25174-75176 Mean = 27.57 % Relative Standard Deviation = 0.9 Number of Observations = 22 Blind Sample ID = 25172-75174
The SGPlot Procedure


- Chloride, FIL, IC, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00940, MCode: IC024
Dates: 11/15/06 through 11/01/13
Open Data Set

Mean = 2.12 % Relative Standard Deviation = 2.8 Number of Observations = 8 Blind Sample ID = P55 Mean = 1.52 % Relative Standard Deviation = 2.9 Number of Observations = 8 Blind Sample ID = P54 Mean = 1.10 % Relative Standard Deviation = 0.8 Number of Observations = 16 Blind Sample ID = P53 Mean = 1.85 % Relative Standard Deviation = 1.0 Number of Observations = 8 Blind Sample ID = P52 Mean = 1.25 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = P51 Mean = 1.62 % Relative Standard Deviation = 2.6 Number of Observations = 32 Blind Sample ID = P50 Mean = 1.12 % Relative Standard Deviation = 4.4 Number of Observations = 31 Blind Sample ID = P49 Mean = 2.53 % Relative Standard Deviation = 1.3 Number of Observations = 30 Blind Sample ID = P48 Mean = 3.64 % Relative Standard Deviation = 0.7 Number of Observations = 14 Blind Sample ID = P47 Mean = 4.56 % Relative Standard Deviation = 1.6 Number of Observations = 25 Blind Sample ID = P46 Mean = 0.28 % Relative Standard Deviation = 19.7 Number of Observations = 31 Blind Sample ID = P45 Mean = 2.47 % Relative Standard Deviation = 1.0 Number of Observations = 28 Blind Sample ID = P44 Mean = 4.95 % Relative Standard Deviation = 1.8 Number of Observations = 17 Blind Sample ID = P43
The SGPlot Procedure


- Fluoride, FIL, IC -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00950, MCode: IC003
Dates: 06/16/13 through 09/29/21
Open Data Set

Mean = 0.05 % Relative Standard Deviation = 3.5 Number of Observations = 8 Blind Sample ID = P71 Mean = 0.40 % Relative Standard Deviation = 9.9 Number of Observations = 5 Blind Sample ID = P70 Mean = 0.06 % Relative Standard Deviation = 13.0 Number of Observations = 16 Blind Sample ID = P69 Mean = 0.02 % Relative Standard Deviation = 5.8 Number of Observations = 8 Blind Sample ID = P68 Mean = 0.06 % Relative Standard Deviation = 6.1 Number of Observations = 15 Blind Sample ID = P67 Mean = 0.20 % Relative Standard Deviation = 6.6 Number of Observations = 7 Blind Sample ID = P66 Mean = 0.05 % Relative Standard Deviation = 21.2 Number of Observations = 14 Blind Sample ID = P65 Mean = 0.35 % Relative Standard Deviation = 2.9 Number of Observations = 8 Blind Sample ID = P64 Mean = 0.06 % Relative Standard Deviation = 15.5 Number of Observations = 16 Blind Sample ID = P63 Mean = 0.14 % Relative Standard Deviation = 14.0 Number of Observations = 6 Blind Sample ID = P62 Mean = 0.07 % Relative Standard Deviation = 9.0 Number of Observations = 8 Blind Sample ID = P60 Mean = 0.01 % Relative Standard Deviation = 20.4 Number of Observations = 6 Blind Sample ID = P59 Mean = 0.24 % Relative Standard Deviation = 3.9 Number of Observations = 8 Blind Sample ID = P58 Mean = 0.10 % Relative Standard Deviation = 3.9 Number of Observations = 16 Blind Sample ID = P57 Mean = 0.07 % Relative Standard Deviation = 14.2 Number of Observations = 8 Blind Sample ID = P56 Mean = 0.06 % Relative Standard Deviation = 7.8 Number of Observations = 6 Blind Sample ID = P55 Mean = 0.22 % Relative Standard Deviation = 4.9 Number of Observations = 6 Blind Sample ID = M232 Mean = 0.33 % Relative Standard Deviation = 0.9 Number of Observations = 8 Blind Sample ID = M230 Mean = 0.71 % Relative Standard Deviation = 2.3 Number of Observations = 12 Blind Sample ID = M228 Mean = 0.26 % Relative Standard Deviation = 4.0 Number of Observations = 15 Blind Sample ID = M226 Mean = 0.75 % Relative Standard Deviation = 2.7 Number of Observations = 18 Blind Sample ID = M224 Mean = 0.37 % Relative Standard Deviation = 3.9 Number of Observations = 21 Blind Sample ID = M222 Mean = 0.66 % Relative Standard Deviation = 3.5 Number of Observations = 17 Blind Sample ID = M220 Mean = 0.36 % Relative Standard Deviation = 5.1 Number of Observations = 23 Blind Sample ID = M218 Mean = 0.25 % Relative Standard Deviation = 3.7 Number of Observations = 16 Blind Sample ID = M216 Mean = 0.60 % Relative Standard Deviation = 3.5 Number of Observations = 24 Blind Sample ID = M214 Mean = 0.29 % Relative Standard Deviation = 3.6 Number of Observations = 19 Blind Sample ID = M212 Mean = 0.19 % Relative Standard Deviation = 4.9 Number of Observations = 24 Blind Sample ID = M210 Mean = 0.19 % Relative Standard Deviation = 7.9 Number of Observations = 14 Blind Sample ID = M208 Mean = 0.44 % Relative Standard Deviation = 2.3 Number of Observations = 8 Blind Sample ID = M206 Mean = 0.43 % Relative Standard Deviation = 4.2 Number of Observations = 7 Blind Sample ID = M204 Mean = 0.15 % Relative Standard Deviation = 5.4 Number of Observations = 8 Blind Sample ID = M202 Mean = 0.34 % Relative Standard Deviation = 4.0 Number of Observations = 16 Blind Sample ID = 75206-25DIW Mean = 0.32 % Relative Standard Deviation = 3.2 Number of Observations = 8 Blind Sample ID = 75204-25DIW Mean = 0.11 % Relative Standard Deviation = 4.5 Number of Observations = 18 Blind Sample ID = 75202-25DIW Mean = 0.20 % Relative Standard Deviation = 4.9 Number of Observations = 12 Blind Sample ID = 75200-25DIW Mean = 0.16 % Relative Standard Deviation = 3.9 Number of Observations = 13 Blind Sample ID = 75198-25DIW Mean = 0.67 % Relative Standard Deviation = 3.9 Number of Observations = 8 Blind Sample ID = 75196-25DIW Mean = 0.44 % Relative Standard Deviation = 1.6 Number of Observations = 8 Blind Sample ID = 25206-75204 Mean = 0.22 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = 25204-75202 Mean = 0.38 % Relative Standard Deviation = 4.2 Number of Observations = 8 Blind Sample ID = 25202-75206 Mean = 0.20 % Relative Standard Deviation = 3.4 Number of Observations = 12 Blind Sample ID = 25202-75198 Mean = 0.18 % Relative Standard Deviation = 3.0 Number of Observations = 12 Blind Sample ID = 25200-75202 Mean = 0.25 % Relative Standard Deviation = 5.0 Number of Observations = 12 Blind Sample ID = 25198-75200 Mean = 0.33 % Relative Standard Deviation = 3.4 Number of Observations = 4 Blind Sample ID = 25198-75194 Mean = 0.38 % Relative Standard Deviation = 1.9 Number of Observations = 4 Blind Sample ID = 25196-75198 Mean = 0.78 % Relative Standard Deviation = 2.4 Number of Observations = 4 Blind Sample ID = 25194-75196
The SGPlot Procedure


- Fluoride, FIL, ISE -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00950, MCode: ISE05
Dates: 10/19/06 through 03/29/13
Open Data Set

Mean = 0.14 % Relative Standard Deviation = 11.9 Number of Observations = 6 Blind Sample ID = 75198-25DIW Mean = 0.62 % Relative Standard Deviation = 3.6 Number of Observations = 6 Blind Sample ID = 75196-25DIW Mean = 0.26 % Relative Standard Deviation = 7.6 Number of Observations = 32 Blind Sample ID = 75194-25DIW Mean = 0.10 % Relative Standard Deviation = 18.8 Number of Observations = 38 Blind Sample ID = 75192-25DIW Mean = 0.38 % Relative Standard Deviation = 5.5 Number of Observations = 31 Blind Sample ID = 75190-25DIW Mean = 0.42 % Relative Standard Deviation = 3.6 Number of Observations = 24 Blind Sample ID = 75190-25192 Mean = 0.64 % Relative Standard Deviation = 3.9 Number of Observations = 44 Blind Sample ID = 75188-25DIW Mean = 0.75 % Relative Standard Deviation = 2.5 Number of Observations = 22 Blind Sample ID = 75188-25190 Mean = 0.71 % Relative Standard Deviation = 4.0 Number of Observations = 24 Blind Sample ID = 75186-25DIW Mean = 1.31 % Relative Standard Deviation = 2.2 Number of Observations = 47 Blind Sample ID = 75184-25DIW Mean = 1.49 % Relative Standard Deviation = 2.4 Number of Observations = 24 Blind Sample ID = 75184-25188 Mean = 0.12 % Relative Standard Deviation = 17.9 Number of Observations = 24 Blind Sample ID = 75182-25DIW Mean = 0.21 % Relative Standard Deviation = 8.3 Number of Observations = 48 Blind Sample ID = 75180-25DIW Mean = 0.22 % Relative Standard Deviation = 8.7 Number of Observations = 24 Blind Sample ID = 75178-25DIW Mean = 0.16 % Relative Standard Deviation = 9.5 Number of Observations = 47 Blind Sample ID = 75176-25DIW Mean = 0.22 % Relative Standard Deviation = 5.6 Number of Observations = 22 Blind Sample ID = 75174-25DIW Mean = 0.31 % Relative Standard Deviation = 5.5 Number of Observations = 23 Blind Sample ID = 75172-25DIW Mean = 0.37 % Relative Standard Deviation = 3.2 Number of Observations = 21 Blind Sample ID = 75172-25176 Mean = 0.31 % Relative Standard Deviation = 5.2 Number of Observations = 8 Blind Sample ID = 25198-75194 Mean = 0.35 % Relative Standard Deviation = 4.9 Number of Observations = 8 Blind Sample ID = 25196-75198 Mean = 0.73 % Relative Standard Deviation = 4.6 Number of Observations = 8 Blind Sample ID = 25194-75196 Mean = 0.19 % Relative Standard Deviation = 9.1 Number of Observations = 16 Blind Sample ID = 25194-75192 Mean = 0.42 % Relative Standard Deviation = 7.8 Number of Observations = 16 Blind Sample ID = 25192-75190 Mean = 0.39 % Relative Standard Deviation = 9.1 Number of Observations = 16 Blind Sample ID = 25190-75194 Mean = 0.32 % Relative Standard Deviation = 5.2 Number of Observations = 24 Blind Sample ID = 25188-75192 Mean = 0.85 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = 25186-75188 Mean = 1.13 % Relative Standard Deviation = 3.2 Number of Observations = 24 Blind Sample ID = 25184-75186 Mean = 0.57 % Relative Standard Deviation = 4.7 Number of Observations = 24 Blind Sample ID = 25184-75182 Mean = 0.25 % Relative Standard Deviation = 8.9 Number of Observations = 24 Blind Sample ID = 25182-75180 Mean = 1.37 % Relative Standard Deviation = 4.0 Number of Observations = 23 Blind Sample ID = 25180-75184 Mean = 0.29 % Relative Standard Deviation = 4.5 Number of Observations = 24 Blind Sample ID = 25180-75178 Mean = 0.23 % Relative Standard Deviation = 5.1 Number of Observations = 23 Blind Sample ID = 25180-75176 Mean = 0.23 % Relative Standard Deviation = 7.1 Number of Observations = 23 Blind Sample ID = 25178-75176 Mean = 0.24 % Relative Standard Deviation = 7.2 Number of Observations = 22 Blind Sample ID = 25174-75176 Mean = 0.32 % Relative Standard Deviation = 5.5 Number of Observations = 22 Blind Sample ID = 25172-75174
The SGPlot Procedure


- Magnesium, FIL, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00925, MCode: PLA11
Dates: 10/03/06 through 09/29/21
Open Data Set

Mean = 29.34 % Relative Standard Deviation = 2.2 Number of Observations = 15 Blind Sample ID = T239 Mean = 7.53 % Relative Standard Deviation = 2.8 Number of Observations = 13 Blind Sample ID = T237 Mean = 4.20 % Relative Standard Deviation = 1.7 Number of Observations = 28 Blind Sample ID = T235 Mean = 6.72 % Relative Standard Deviation = 2.6 Number of Observations = 25 Blind Sample ID = T233 Mean = 14.30 % Relative Standard Deviation = 1.9 Number of Observations = 41 Blind Sample ID = T231 Mean = 23.32 % Relative Standard Deviation = 1.7 Number of Observations = 43 Blind Sample ID = T229 Mean = 3.26 % Relative Standard Deviation = 1.7 Number of Observations = 44 Blind Sample ID = T227 Mean = 15.43 % Relative Standard Deviation = 2.5 Number of Observations = 41 Blind Sample ID = T225 Mean = 4.16 % Relative Standard Deviation = 2.2 Number of Observations = 47 Blind Sample ID = T223 Mean = 3.79 % Relative Standard Deviation = 2.0 Number of Observations = 42 Blind Sample ID = T221 Mean = 5.85 % Relative Standard Deviation = 2.8 Number of Observations = 42 Blind Sample ID = T219 Mean = 7.55 % Relative Standard Deviation = 2.1 Number of Observations = 48 Blind Sample ID = T217 Mean = 10.78 % Relative Standard Deviation = 3.4 Number of Observations = 32 Blind Sample ID = T215 Mean = 5.34 % Relative Standard Deviation = 3.0 Number of Observations = 28 Blind Sample ID = T211 Mean = 5.09 % Relative Standard Deviation = 1.9 Number of Observations = 16 Blind Sample ID = T209 Mean = 0.20 % Relative Standard Deviation = 2.4 Number of Observations = 8 Blind Sample ID = P71 Mean = 0.37 % Relative Standard Deviation = 1.9 Number of Observations = 7 Blind Sample ID = P70 Mean = 0.07 % Relative Standard Deviation = 3.1 Number of Observations = 16 Blind Sample ID = P69 Mean = 0.11 % Relative Standard Deviation = 2.4 Number of Observations = 8 Blind Sample ID = P68 Mean = 0.08 % Relative Standard Deviation = 2.5 Number of Observations = 16 Blind Sample ID = P67 Mean = 0.70 % Relative Standard Deviation = 2.4 Number of Observations = 7 Blind Sample ID = P66 Mean = 0.09 % Relative Standard Deviation = 2.3 Number of Observations = 14 Blind Sample ID = P65 Mean = 0.38 % Relative Standard Deviation = 1.8 Number of Observations = 8 Blind Sample ID = P64 Mean = 0.13 % Relative Standard Deviation = 3.2 Number of Observations = 16 Blind Sample ID = P63 Mean = 0.18 % Relative Standard Deviation = 1.3 Number of Observations = 8 Blind Sample ID = P62 Mean = 0.24 % Relative Standard Deviation = 3.5 Number of Observations = 16 Blind Sample ID = P61 Mean = 0.11 % Relative Standard Deviation = 2.7 Number of Observations = 8 Blind Sample ID = P60 Mean = 0.46 % Relative Standard Deviation = 3.8 Number of Observations = 16 Blind Sample ID = P59 Mean = 0.09 % Relative Standard Deviation = 5.1 Number of Observations = 8 Blind Sample ID = P58 Mean = 0.27 % Relative Standard Deviation = 3.2 Number of Observations = 16 Blind Sample ID = P57 Mean = 0.13 % Relative Standard Deviation = 4.1 Number of Observations = 8 Blind Sample ID = P56 Mean = 0.09 % Relative Standard Deviation = 3.9 Number of Observations = 14 Blind Sample ID = P55 Mean = 0.18 % Relative Standard Deviation = 2.2 Number of Observations = 8 Blind Sample ID = P54 Mean = 0.35 % Relative Standard Deviation = 3.0 Number of Observations = 16 Blind Sample ID = P53 Mean = 0.06 % Relative Standard Deviation = 2.1 Number of Observations = 8 Blind Sample ID = P52 Mean = 0.31 % Relative Standard Deviation = 2.6 Number of Observations = 24 Blind Sample ID = P51 Mean = 0.23 % Relative Standard Deviation = 4.3 Number of Observations = 32 Blind Sample ID = P50 Mean = 0.10 % Relative Standard Deviation = 4.9 Number of Observations = 31 Blind Sample ID = P49 Mean = 0.05 % Relative Standard Deviation = 4.6 Number of Observations = 30 Blind Sample ID = P48 Mean = 0.12 % Relative Standard Deviation = 2.7 Number of Observations = 14 Blind Sample ID = P47 Mean = 0.05 % Relative Standard Deviation = 6.5 Number of Observations = 26 Blind Sample ID = P46 Mean = 0.17 % Relative Standard Deviation = 3.1 Number of Observations = 31 Blind Sample ID = P45 Mean = 0.09 % Relative Standard Deviation = 5.6 Number of Observations = 27 Blind Sample ID = P44 Mean = 0.04 % Relative Standard Deviation = 8.8 Number of Observations = 17 Blind Sample ID = P43 Mean = 3.18 % Relative Standard Deviation = 2.5 Number of Observations = 28 Blind Sample ID = 75213-25DIW Mean = 4.06 % Relative Standard Deviation = 3.0 Number of Observations = 16 Blind Sample ID = 75211-25DIW Mean = 3.75 % Relative Standard Deviation = 4.3 Number of Observations = 27 Blind Sample ID = 75209-25DIW Mean = 4.62 % Relative Standard Deviation = 4.1 Number of Observations = 14 Blind Sample ID = 75207-25DIW Mean = 1.72 % Relative Standard Deviation = 4.1 Number of Observations = 30 Blind Sample ID = 75205-25DIW Mean = 0.97 % Relative Standard Deviation = 4.5 Number of Observations = 12 Blind Sample ID = 75203-25DIW Mean = 18.29 % Relative Standard Deviation = 2.2 Number of Observations = 37 Blind Sample ID = 75201-25DIW Mean = 10.90 % Relative Standard Deviation = 2.2 Number of Observations = 18 Blind Sample ID = 75199-25201 Mean = 18.72 % Relative Standard Deviation = 2.5 Number of Observations = 32 Blind Sample ID = 75197-25DIW Mean = 8.51 % Relative Standard Deviation = 1.9 Number of Observations = 16 Blind Sample ID = 75195-25197 Mean = 3.42 % Relative Standard Deviation = 4.8 Number of Observations = 32 Blind Sample ID = 75193-25DIW Mean = 9.45 % Relative Standard Deviation = 2.7 Number of Observations = 18 Blind Sample ID = 75193-25197 Mean = 2.81 % Relative Standard Deviation = 3.7 Number of Observations = 30 Blind Sample ID = 75191-25DIW Mean = 5.89 % Relative Standard Deviation = 3.4 Number of Observations = 32 Blind Sample ID = 75189-25DIW Mean = 6.82 % Relative Standard Deviation = 3.5 Number of Observations = 18 Blind Sample ID = 75189-25193 Mean = 6.69 % Relative Standard Deviation = 3.9 Number of Observations = 14 Blind Sample ID = 75189-25191 Mean = 9.58 % Relative Standard Deviation = 4.3 Number of Observations = 30 Blind Sample ID = 75187-25DIW Mean = 3.53 % Relative Standard Deviation = 2.3 Number of Observations = 14 Blind Sample ID = 75185-25DIW Mean = 5.85 % Relative Standard Deviation = 2.7 Number of Observations = 29 Blind Sample ID = 75183-25DIW Mean = 2.30 % Relative Standard Deviation = 2.8 Number of Observations = 11 Blind Sample ID = 75181-25DIW Mean = 3.38 % Relative Standard Deviation = 2.4 Number of Observations = 16 Blind Sample ID = 75179-25DIW Mean = 8.30 % Relative Standard Deviation = 4.3 Number of Observations = 16 Blind Sample ID = 50187-50191 Mean = 10.60 % Relative Standard Deviation = 2.1 Number of Observations = 18 Blind Sample ID = 50187-50189 Mean = 10.31 % Relative Standard Deviation = 1.9 Number of Observations = 16 Blind Sample ID = 50187-50183 Mean = 8.64 % Relative Standard Deviation = 3.2 Number of Observations = 16 Blind Sample ID = 50185-50187 Mean = 6.18 % Relative Standard Deviation = 1.8 Number of Observations = 18 Blind Sample ID = 50183-50185 Mean = 5.09 % Relative Standard Deviation = 2.5 Number of Observations = 16 Blind Sample ID = 25213-75211 Mean = 5.07 % Relative Standard Deviation = 2.2 Number of Observations = 14 Blind Sample ID = 25211-75209 Mean = 4.45 % Relative Standard Deviation = 1.5 Number of Observations = 14 Blind Sample ID = 25209-75213 Mean = 5.99 % Relative Standard Deviation = 4.8 Number of Observations = 16 Blind Sample ID = 25209-75207 Mean = 3.34 % Relative Standard Deviation = 2.3 Number of Observations = 14 Blind Sample ID = 25207-75205 Mean = 4.40 % Relative Standard Deviation = 1.5 Number of Observations = 14 Blind Sample ID = 25205-75209 Mean = 18.73 % Relative Standard Deviation = 2.5 Number of Observations = 14 Blind Sample ID = 25205-75201 Mean = 2.09 % Relative Standard Deviation = 2.3 Number of Observations = 12 Blind Sample ID = 25203-75205 Mean = 6.95 % Relative Standard Deviation = 1.8 Number of Observations = 14 Blind Sample ID = 25201-75203 Mean = 24.70 % Relative Standard Deviation = 1.9 Number of Observations = 18 Blind Sample ID = 25201-75197 Mean = 19.73 % Relative Standard Deviation = 1.7 Number of Observations = 20 Blind Sample ID = 25199-75201 Mean = 11.07 % Relative Standard Deviation = 3.0 Number of Observations = 18 Blind Sample ID = 25197-75199 Mean = 19.11 % Relative Standard Deviation = 3.1 Number of Observations = 13 Blind Sample ID = 25195-75197 Mean = 3.65 % Relative Standard Deviation = 1.7 Number of Observations = 16 Blind Sample ID = 25193-75195 Mean = 4.29 % Relative Standard Deviation = 3.1 Number of Observations = 16 Blind Sample ID = 25191-75193 Mean = 4.25 % Relative Standard Deviation = 3.0 Number of Observations = 23 Blind Sample ID = 25183-75181 Mean = 4.18 % Relative Standard Deviation = 1.9 Number of Observations = 15 Blind Sample ID = 25181-75179 Mean = 7.02 % Relative Standard Deviation = 2.4 Number of Observations = 8 Blind Sample ID = 25179-75183
The SGPlot Procedure


- Magnesium, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00927, MCode: PLA15
Dates: 12/08/06 through 03/24/15
Open Data Set

Mean = 3.86 % Relative Standard Deviation = 2.4 Number of Observations = 3 Blind Sample ID = 75211-25DIW Mean = 3.68 % Relative Standard Deviation = 1.6 Number of Observations = 10 Blind Sample ID = 75209-25DIW Mean = 4.74 % Relative Standard Deviation = 2.5 Number of Observations = 8 Blind Sample ID = 75207-25DIW Mean = 1.74 % Relative Standard Deviation = 2.6 Number of Observations = 14 Blind Sample ID = 75205-25DIW Mean = 0.97 % Relative Standard Deviation = 1.0 Number of Observations = 6 Blind Sample ID = 75203-25DIW Mean = 17.45 % Relative Standard Deviation = 1.7 Number of Observations = 16 Blind Sample ID = 75201-25DIW Mean = 10.36 % Relative Standard Deviation = 0.8 Number of Observations = 6 Blind Sample ID = 75199-25201 Mean = 17.77 % Relative Standard Deviation = 1.6 Number of Observations = 16 Blind Sample ID = 75197-25DIW Mean = 8.12 % Relative Standard Deviation = 4.1 Number of Observations = 5 Blind Sample ID = 75195-25197 Mean = 3.33 % Relative Standard Deviation = 4.8 Number of Observations = 16 Blind Sample ID = 75193-25DIW Mean = 9.17 % Relative Standard Deviation = 2.4 Number of Observations = 8 Blind Sample ID = 75193-25197 Mean = 2.70 % Relative Standard Deviation = 4.5 Number of Observations = 16 Blind Sample ID = 75191-25DIW Mean = 5.64 % Relative Standard Deviation = 4.7 Number of Observations = 12 Blind Sample ID = 75189-25DIW Mean = 6.67 % Relative Standard Deviation = 3.9 Number of Observations = 8 Blind Sample ID = 75189-25193 Mean = 6.49 % Relative Standard Deviation = 2.2 Number of Observations = 6 Blind Sample ID = 75189-25191 Mean = 8.99 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = 75187-25DIW Mean = 3.36 % Relative Standard Deviation = 1.8 Number of Observations = 6 Blind Sample ID = 75185-25DIW Mean = 5.59 % Relative Standard Deviation = 4.3 Number of Observations = 13 Blind Sample ID = 75183-25DIW Mean = 2.21 % Relative Standard Deviation = 2.6 Number of Observations = 8 Blind Sample ID = 75181-25DIW Mean = 3.42 % Relative Standard Deviation = 1.8 Number of Observations = 4 Blind Sample ID = 75179-25DIW Mean = 7.86 % Relative Standard Deviation = 4.4 Number of Observations = 6 Blind Sample ID = 50187-50191 Mean = 10.04 % Relative Standard Deviation = 5.4 Number of Observations = 8 Blind Sample ID = 50187-50189 Mean = 10.13 % Relative Standard Deviation = 4.6 Number of Observations = 6 Blind Sample ID = 50187-50183 Mean = 8.32 % Relative Standard Deviation = 1.5 Number of Observations = 8 Blind Sample ID = 50185-50187 Mean = 5.95 % Relative Standard Deviation = 1.9 Number of Observations = 8 Blind Sample ID = 50183-50185 Mean = 5.03 % Relative Standard Deviation = 2.6 Number of Observations = 4 Blind Sample ID = 25213-75211 Mean = 5.90 % Relative Standard Deviation = 2.6 Number of Observations = 8 Blind Sample ID = 25209-75207 Mean = 3.29 % Relative Standard Deviation = 2.5 Number of Observations = 8 Blind Sample ID = 25207-75205 Mean = 4.27 % Relative Standard Deviation = 2.0 Number of Observations = 8 Blind Sample ID = 25205-75209 Mean = 18.00 % Relative Standard Deviation = 1.1 Number of Observations = 6 Blind Sample ID = 25205-75201 Mean = 2.07 % Relative Standard Deviation = 2.4 Number of Observations = 6 Blind Sample ID = 25203-75205 Mean = 6.86 % Relative Standard Deviation = 3.3 Number of Observations = 8 Blind Sample ID = 25201-75203 Mean = 23.70 % Relative Standard Deviation = 1.8 Number of Observations = 6 Blind Sample ID = 25201-75197 Mean = 19.07 % Relative Standard Deviation = 1.6 Number of Observations = 8 Blind Sample ID = 25199-75201 Mean = 10.57 % Relative Standard Deviation = 1.3 Number of Observations = 6 Blind Sample ID = 25197-75199 Mean = 18.68 % Relative Standard Deviation = 3.4 Number of Observations = 5 Blind Sample ID = 25195-75197 Mean = 3.61 % Relative Standard Deviation = 2.5 Number of Observations = 6 Blind Sample ID = 25193-75195 Mean = 4.14 % Relative Standard Deviation = 2.0 Number of Observations = 6 Blind Sample ID = 25191-75193 Mean = 4.06 % Relative Standard Deviation = 3.2 Number of Observations = 15 Blind Sample ID = 25183-75181 Mean = 3.93 % Relative Standard Deviation = 2.8 Number of Observations = 8 Blind Sample ID = 25181-75179
The SGPlot Procedure


- Magnesium, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00927, MCode: PLO07
Dates: 06/09/15 through 09/20/21
Open Data Set

Mean = 28.14 % Relative Standard Deviation = 4.2 Number of Observations = 6 Blind Sample ID = T239 Mean = 7.34 % Relative Standard Deviation = 4.6 Number of Observations = 4 Blind Sample ID = T237 Mean = 4.14 % Relative Standard Deviation = 2.8 Number of Observations = 14 Blind Sample ID = T235 Mean = 6.64 % Relative Standard Deviation = 4.1 Number of Observations = 12 Blind Sample ID = T233 Mean = 14.24 % Relative Standard Deviation = 1.7 Number of Observations = 18 Blind Sample ID = T231 Mean = 23.12 % Relative Standard Deviation = 2.0 Number of Observations = 21 Blind Sample ID = T229 Mean = 3.25 % Relative Standard Deviation = 3.4 Number of Observations = 24 Blind Sample ID = T227 Mean = 15.35 % Relative Standard Deviation = 1.5 Number of Observations = 18 Blind Sample ID = T225 Mean = 4.14 % Relative Standard Deviation = 2.1 Number of Observations = 23 Blind Sample ID = T223 Mean = 3.80 % Relative Standard Deviation = 1.6 Number of Observations = 18 Blind Sample ID = T221 Mean = 5.83 % Relative Standard Deviation = 2.3 Number of Observations = 18 Blind Sample ID = T219 Mean = 7.63 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = T217 Mean = 10.87 % Relative Standard Deviation = 3.2 Number of Observations = 16 Blind Sample ID = T215 Mean = 5.28 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = T211 Mean = 5.00 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = T209 Mean = 3.15 % Relative Standard Deviation = 2.6 Number of Observations = 11 Blind Sample ID = 75213-25DIW Mean = 4.06 % Relative Standard Deviation = 0.9 Number of Observations = 5 Blind Sample ID = 75211-25DIW Mean = 3.83 % Relative Standard Deviation = 2.2 Number of Observations = 4 Blind Sample ID = 75209-25DIW Mean = 5.02 % Relative Standard Deviation = 1.4 Number of Observations = 4 Blind Sample ID = 25213-75211 Mean = 5.07 % Relative Standard Deviation = 3.6 Number of Observations = 4 Blind Sample ID = 25211-75209 Mean = 4.30 % Relative Standard Deviation = 2.9 Number of Observations = 4 Blind Sample ID = 25209-75213
The SGPlot Procedure


- Potassium, FIL, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00935, MCode: PLO03
Dates: 10/03/06 through 09/29/21
Open Data Set

Mean = 8.69 % Relative Standard Deviation = 2.6 Number of Observations = 17 Blind Sample ID = T239 Mean = 2.33 % Relative Standard Deviation = 3.8 Number of Observations = 17 Blind Sample ID = T237 Mean = 1.46 % Relative Standard Deviation = 4.1 Number of Observations = 35 Blind Sample ID = T235 Mean = 1.54 % Relative Standard Deviation = 5.2 Number of Observations = 29 Blind Sample ID = T233 Mean = 1.38 % Relative Standard Deviation = 5.2 Number of Observations = 45 Blind Sample ID = T231 Mean = 4.47 % Relative Standard Deviation = 2.3 Number of Observations = 52 Blind Sample ID = T229 Mean = 0.45 % Relative Standard Deviation = 15.2 Number of Observations = 47 Blind Sample ID = T227 Mean = 2.56 % Relative Standard Deviation = 3.3 Number of Observations = 45 Blind Sample ID = T225 Mean = 1.00 % Relative Standard Deviation = 5.3 Number of Observations = 51 Blind Sample ID = T223 Mean = 1.88 % Relative Standard Deviation = 3.9 Number of Observations = 42 Blind Sample ID = T221 Mean = 1.84 % Relative Standard Deviation = 3.3 Number of Observations = 45 Blind Sample ID = T219 Mean = 2.57 % Relative Standard Deviation = 3.4 Number of Observations = 54 Blind Sample ID = T217 Mean = 1.65 % Relative Standard Deviation = 5.6 Number of Observations = 36 Blind Sample ID = T215 Mean = 0.99 % Relative Standard Deviation = 4.1 Number of Observations = 32 Blind Sample ID = T211 Mean = 2.74 % Relative Standard Deviation = 3.6 Number of Observations = 20 Blind Sample ID = T209 Mean = 0.45 % Relative Standard Deviation = 14.6 Number of Observations = 8 Blind Sample ID = P64 Mean = 0.13 % Relative Standard Deviation = 17.8 Number of Observations = 4 Blind Sample ID = P63 Mean = 1.11 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = P62 Mean = 0.24 % Relative Standard Deviation = 13.3 Number of Observations = 4 Blind Sample ID = P61 Mean = 6.92 % Relative Standard Deviation = 5.4 Number of Observations = 36 Blind Sample ID = 75213-25DIW Mean = 0.74 % Relative Standard Deviation = 3.7 Number of Observations = 20 Blind Sample ID = 75211-25DIW Mean = 1.99 % Relative Standard Deviation = 4.7 Number of Observations = 35 Blind Sample ID = 75209-25DIW Mean = 1.59 % Relative Standard Deviation = 3.0 Number of Observations = 18 Blind Sample ID = 75207-25DIW Mean = 0.58 % Relative Standard Deviation = 6.5 Number of Observations = 38 Blind Sample ID = 75205-25DIW Mean = 0.93 % Relative Standard Deviation = 4.6 Number of Observations = 20 Blind Sample ID = 75203-25DIW Mean = 3.88 % Relative Standard Deviation = 2.6 Number of Observations = 47 Blind Sample ID = 75201-25DIW Mean = 2.68 % Relative Standard Deviation = 3.7 Number of Observations = 22 Blind Sample ID = 75199-25201 Mean = 4.05 % Relative Standard Deviation = 2.9 Number of Observations = 46 Blind Sample ID = 75197-25DIW Mean = 2.05 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = 75195-25197 Mean = 2.01 % Relative Standard Deviation = 2.7 Number of Observations = 48 Blind Sample ID = 75193-25DIW Mean = 3.34 % Relative Standard Deviation = 2.7 Number of Observations = 26 Blind Sample ID = 75193-25197 Mean = 3.58 % Relative Standard Deviation = 2.8 Number of Observations = 46 Blind Sample ID = 75191-25DIW Mean = 2.91 % Relative Standard Deviation = 3.8 Number of Observations = 48 Blind Sample ID = 75189-25DIW Mean = 3.54 % Relative Standard Deviation = 3.7 Number of Observations = 26 Blind Sample ID = 75189-25193 Mean = 4.06 % Relative Standard Deviation = 1.9 Number of Observations = 22 Blind Sample ID = 75189-25191 Mean = 6.86 % Relative Standard Deviation = 3.9 Number of Observations = 46 Blind Sample ID = 75187-25DIW Mean = 2.08 % Relative Standard Deviation = 2.5 Number of Observations = 21 Blind Sample ID = 75185-25DIW Mean = 1.97 % Relative Standard Deviation = 3.3 Number of Observations = 44 Blind Sample ID = 75183-25DIW Mean = 1.16 % Relative Standard Deviation = 3.1 Number of Observations = 18 Blind Sample ID = 75181-25DIW Mean = 1.06 % Relative Standard Deviation = 3.4 Number of Observations = 24 Blind Sample ID = 75179-25DIW Mean = 7.04 % Relative Standard Deviation = 4.4 Number of Observations = 24 Blind Sample ID = 50187-50191 Mean = 6.41 % Relative Standard Deviation = 4.1 Number of Observations = 18 Blind Sample ID = 50187-50189 Mean = 5.87 % Relative Standard Deviation = 2.3 Number of Observations = 24 Blind Sample ID = 50187-50183 Mean = 5.87 % Relative Standard Deviation = 4.0 Number of Observations = 24 Blind Sample ID = 50185-50187 Mean = 2.69 % Relative Standard Deviation = 2.7 Number of Observations = 26 Blind Sample ID = 50183-50185 Mean = 2.97 % Relative Standard Deviation = 5.3 Number of Observations = 20 Blind Sample ID = 25213-75211 Mean = 2.27 % Relative Standard Deviation = 4.3 Number of Observations = 18 Blind Sample ID = 25211-75209 Mean = 7.49 % Relative Standard Deviation = 3.7 Number of Observations = 18 Blind Sample ID = 25209-75213 Mean = 2.31 % Relative Standard Deviation = 4.3 Number of Observations = 18 Blind Sample ID = 25209-75207 Mean = 1.11 % Relative Standard Deviation = 2.8 Number of Observations = 18 Blind Sample ID = 25207-75205 Mean = 2.17 % Relative Standard Deviation = 3.5 Number of Observations = 18 Blind Sample ID = 25205-75209 Mean = 4.05 % Relative Standard Deviation = 3.1 Number of Observations = 17 Blind Sample ID = 25205-75201 Mean = 0.90 % Relative Standard Deviation = 3.8 Number of Observations = 18 Blind Sample ID = 25203-75205 Mean = 2.20 % Relative Standard Deviation = 3.1 Number of Observations = 22 Blind Sample ID = 25201-75203 Mean = 5.24 % Relative Standard Deviation = 3.0 Number of Observations = 22 Blind Sample ID = 25201-75197 Mean = 4.35 % Relative Standard Deviation = 3.2 Number of Observations = 24 Blind Sample ID = 25199-75201 Mean = 2.72 % Relative Standard Deviation = 3.8 Number of Observations = 24 Blind Sample ID = 25197-75199 Mean = 4.31 % Relative Standard Deviation = 3.1 Number of Observations = 21 Blind Sample ID = 25195-75197 Mean = 1.41 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = 25193-75195 Mean = 3.22 % Relative Standard Deviation = 3.0 Number of Observations = 24 Blind Sample ID = 25191-75193 Mean = 1.82 % Relative Standard Deviation = 3.4 Number of Observations = 31 Blind Sample ID = 25183-75181 Mean = 1.45 % Relative Standard Deviation = 2.5 Number of Observations = 23 Blind Sample ID = 25181-75179 Mean = 2.32 % Relative Standard Deviation = 2.7 Number of Observations = 15 Blind Sample ID = 25179-75183
The SGPlot Procedure


- Potassium, FIL, ICP-OES, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00935, MCode: PLO02
Dates: 10/05/06 through 09/29/21
Open Data Set

Mean = 0.14 % Relative Standard Deviation = 1.5 Number of Observations = 8 Blind Sample ID = P71 Mean = 0.42 % Relative Standard Deviation = 2.4 Number of Observations = 7 Blind Sample ID = P70 Mean = 0.01 % Relative Standard Deviation = 8.8 Number of Observations = 16 Blind Sample ID = P69 Mean = 0.16 % Relative Standard Deviation = 1.9 Number of Observations = 8 Blind Sample ID = P68 Mean = 0.11 % Relative Standard Deviation = 2.3 Number of Observations = 10 Blind Sample ID = P67 Mean = 0.09 % Relative Standard Deviation = 4.0 Number of Observations = 4 Blind Sample ID = P63 Mean = 0.28 % Relative Standard Deviation = 3.7 Number of Observations = 12 Blind Sample ID = P61 Mean = 0.12 % Relative Standard Deviation = 3.6 Number of Observations = 8 Blind Sample ID = P60 Mean = 0.20 % Relative Standard Deviation = 4.4 Number of Observations = 16 Blind Sample ID = P59 Mean = 0.88 % Relative Standard Deviation = 2.3 Number of Observations = 7 Blind Sample ID = P58 Mean = 0.16 % Relative Standard Deviation = 5.8 Number of Observations = 15 Blind Sample ID = P57 Mean = 0.35 % Relative Standard Deviation = 2.6 Number of Observations = 7 Blind Sample ID = P56 Mean = 0.12 % Relative Standard Deviation = 5.2 Number of Observations = 14 Blind Sample ID = P55 Mean = 0.47 % Relative Standard Deviation = 4.5 Number of Observations = 8 Blind Sample ID = P54 Mean = 0.08 % Relative Standard Deviation = 3.2 Number of Observations = 16 Blind Sample ID = P53 Mean = 0.63 % Relative Standard Deviation = 2.6 Number of Observations = 8 Blind Sample ID = P52 Mean = 0.23 % Relative Standard Deviation = 2.5 Number of Observations = 23 Blind Sample ID = P51 Mean = 0.29 % Relative Standard Deviation = 3.1 Number of Observations = 32 Blind Sample ID = P50 Mean = 0.12 % Relative Standard Deviation = 2.9 Number of Observations = 31 Blind Sample ID = P49 Mean = 0.35 % Relative Standard Deviation = 2.7 Number of Observations = 29 Blind Sample ID = P48 Mean = 0.18 % Relative Standard Deviation = 3.6 Number of Observations = 14 Blind Sample ID = P47 Mean = 0.46 % Relative Standard Deviation = 2.6 Number of Observations = 25 Blind Sample ID = P46 Mean = 0.18 % Relative Standard Deviation = 2.6 Number of Observations = 31 Blind Sample ID = P45 Mean = 0.99 % Relative Standard Deviation = 2.4 Number of Observations = 28 Blind Sample ID = P44 Mean = 0.18 % Relative Standard Deviation = 8.9 Number of Observations = 17 Blind Sample ID = P43
The SGPlot Procedure


- Potassium, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00937, MCode: PLO01
Dates: 11/12/09 through 02/10/14
Open Data Set

Mean = 0.57 % Relative Standard Deviation = 2.3 Number of Observations = 8 Blind Sample ID = 75205-25DIW Mean = 0.89 % Relative Standard Deviation = 3.1 Number of Observations = 6 Blind Sample ID = 75203-25DIW Mean = 3.74 % Relative Standard Deviation = 1.7 Number of Observations = 16 Blind Sample ID = 75201-25DIW Mean = 2.54 % Relative Standard Deviation = 1.0 Number of Observations = 6 Blind Sample ID = 75199-25201 Mean = 3.81 % Relative Standard Deviation = 1.4 Number of Observations = 16 Blind Sample ID = 75197-25DIW Mean = 1.96 % Relative Standard Deviation = 2.8 Number of Observations = 5 Blind Sample ID = 75195-25197 Mean = 1.94 % Relative Standard Deviation = 2.9 Number of Observations = 16 Blind Sample ID = 75193-25DIW Mean = 3.17 % Relative Standard Deviation = 1.5 Number of Observations = 8 Blind Sample ID = 75193-25197 Mean = 3.39 % Relative Standard Deviation = 1.0 Number of Observations = 8 Blind Sample ID = 75191-25DIW Mean = 2.67 % Relative Standard Deviation = 3.7 Number of Observations = 6 Blind Sample ID = 75189-25DIW Mean = 3.35 % Relative Standard Deviation = 3.5 Number of Observations = 8 Blind Sample ID = 75189-25193 Mean = 3.84 % Relative Standard Deviation = 2.7 Number of Observations = 6 Blind Sample ID = 75189-25191 Mean = 3.89 % Relative Standard Deviation = 2.6 Number of Observations = 6 Blind Sample ID = 25205-75201 Mean = 0.88 % Relative Standard Deviation = 4.0 Number of Observations = 6 Blind Sample ID = 25203-75205 Mean = 2.13 % Relative Standard Deviation = 2.0 Number of Observations = 8 Blind Sample ID = 25201-75203 Mean = 5.09 % Relative Standard Deviation = 2.3 Number of Observations = 6 Blind Sample ID = 25201-75197 Mean = 4.19 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = 25199-75201 Mean = 2.62 % Relative Standard Deviation = 2.5 Number of Observations = 6 Blind Sample ID = 25197-75199 Mean = 4.04 % Relative Standard Deviation = 3.5 Number of Observations = 5 Blind Sample ID = 25195-75197 Mean = 1.35 % Relative Standard Deviation = 1.8 Number of Observations = 6 Blind Sample ID = 25193-75195 Mean = 3.04 % Relative Standard Deviation = 2.2 Number of Observations = 6 Blind Sample ID = 25191-75193
The SGPlot Procedure


- Silica, FIL, CFA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00955, MCode: CL064
Dates: 10/19/06 through 02/17/10
Open Data Set

Mean = 4.25 % Relative Standard Deviation = 1.8 Number of Observations = 8 Blind Sample ID = 75188-25DIW Mean = 8.49 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = 75186-25DIW Mean = 5.77 % Relative Standard Deviation = 2.7 Number of Observations = 31 Blind Sample ID = 75184-25DIW Mean = 7.01 % Relative Standard Deviation = 1.0 Number of Observations = 5 Blind Sample ID = 75184-25188 Mean = 5.68 % Relative Standard Deviation = 1.7 Number of Observations = 20 Blind Sample ID = 75182-25DIW Mean = 5.17 % Relative Standard Deviation = 1.1 Number of Observations = 46 Blind Sample ID = 75180-25DIW Mean = 10.51 % Relative Standard Deviation = 0.9 Number of Observations = 24 Blind Sample ID = 75178-25DIW Mean = 3.91 % Relative Standard Deviation = 2.7 Number of Observations = 47 Blind Sample ID = 75176-25DIW Mean = 8.07 % Relative Standard Deviation = 1.6 Number of Observations = 23 Blind Sample ID = 75174-25DIW Mean = 9.12 % Relative Standard Deviation = 2.0 Number of Observations = 23 Blind Sample ID = 75172-25DIW Mean = 10.50 % Relative Standard Deviation = 1.5 Number of Observations = 21 Blind Sample ID = 75172-25176 Mean = 6.98 % Relative Standard Deviation = 2.0 Number of Observations = 6 Blind Sample ID = 25186-75188 Mean = 10.61 % Relative Standard Deviation = 4.6 Number of Observations = 8 Blind Sample ID = 25184-75186 Mean = 7.59 % Relative Standard Deviation = 1.8 Number of Observations = 22 Blind Sample ID = 25184-75182 Mean = 7.03 % Relative Standard Deviation = 2.5 Number of Observations = 22 Blind Sample ID = 25182-75180 Mean = 7.48 % Relative Standard Deviation = 3.0 Number of Observations = 22 Blind Sample ID = 25180-75184 Mean = 12.32 % Relative Standard Deviation = 1.2 Number of Observations = 24 Blind Sample ID = 25180-75178 Mean = 5.69 % Relative Standard Deviation = 1.2 Number of Observations = 23 Blind Sample ID = 25180-75176 Mean = 7.50 % Relative Standard Deviation = 1.2 Number of Observations = 23 Blind Sample ID = 25178-75176 Mean = 6.62 % Relative Standard Deviation = 1.6 Number of Observations = 22 Blind Sample ID = 25174-75176 Mean = 11.04 % Relative Standard Deviation = 1.7 Number of Observations = 22 Blind Sample ID = 25172-75174
The SGPlot Procedure


- Silica, FIL, DA -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00955, MCode: CL151
Dates: 03/15/10 through 09/17/21
Open Data Set

Mean = 7.87 % Relative Standard Deviation = 3.1 Number of Observations = 4 Blind Sample ID = M232 Mean = 9.98 % Relative Standard Deviation = 1.8 Number of Observations = 4 Blind Sample ID = M230 Mean = 10.58 % Relative Standard Deviation = 3.5 Number of Observations = 7 Blind Sample ID = M226 Mean = 11.31 % Relative Standard Deviation = 2.0 Number of Observations = 12 Blind Sample ID = M224 Mean = 6.16 % Relative Standard Deviation = 2.6 Number of Observations = 11 Blind Sample ID = M222 Mean = 6.55 % Relative Standard Deviation = 2.0 Number of Observations = 11 Blind Sample ID = M220 Mean = 23.61 % Relative Standard Deviation = 3.9 Number of Observations = 12 Blind Sample ID = M218 Mean = 15.18 % Relative Standard Deviation = 2.1 Number of Observations = 10 Blind Sample ID = M216 Mean = 9.26 % Relative Standard Deviation = 2.7 Number of Observations = 12 Blind Sample ID = M214 Mean = 6.02 % Relative Standard Deviation = 2.3 Number of Observations = 12 Blind Sample ID = M212 Mean = 8.85 % Relative Standard Deviation = 2.5 Number of Observations = 12 Blind Sample ID = M210 Mean = 6.80 % Relative Standard Deviation = 0.6 Number of Observations = 4 Blind Sample ID = M206 Mean = 11.81 % Relative Standard Deviation = 2.2 Number of Observations = 4 Blind Sample ID = M204 Mean = 6.17 % Relative Standard Deviation = 1.7 Number of Observations = 4 Blind Sample ID = M202 Mean = 5.20 % Relative Standard Deviation = 2.7 Number of Observations = 8 Blind Sample ID = 75206-25DIW Mean = 8.88 % Relative Standard Deviation = 2.6 Number of Observations = 4 Blind Sample ID = 75204-25DIW Mean = 4.76 % Relative Standard Deviation = 2.4 Number of Observations = 10 Blind Sample ID = 75202-25DIW Mean = 6.38 % Relative Standard Deviation = 3.1 Number of Observations = 6 Blind Sample ID = 75200-25DIW Mean = 5.66 % Relative Standard Deviation = 4.4 Number of Observations = 11 Blind Sample ID = 75198-25DIW Mean = 4.48 % Relative Standard Deviation = 2.2 Number of Observations = 8 Blind Sample ID = 75196-25DIW Mean = 9.99 % Relative Standard Deviation = 2.4 Number of Observations = 32 Blind Sample ID = 75194-25DIW Mean = 5.90 % Relative Standard Deviation = 3.0 Number of Observations = 40 Blind Sample ID = 75192-25DIW Mean = 8.60 % Relative Standard Deviation = 2.2 Number of Observations = 28 Blind Sample ID = 75190-25DIW Mean = 10.50 % Relative Standard Deviation = 4.2 Number of Observations = 24 Blind Sample ID = 75190-25192 Mean = 4.22 % Relative Standard Deviation = 3.5 Number of Observations = 32 Blind Sample ID = 75188-25DIW Mean = 7.11 % Relative Standard Deviation = 2.9 Number of Observations = 21 Blind Sample ID = 75188-25190 Mean = 8.17 % Relative Standard Deviation = 1.3 Number of Observations = 8 Blind Sample ID = 75186-25DIW Mean = 5.42 % Relative Standard Deviation = 3.5 Number of Observations = 8 Blind Sample ID = 75184-25DIW Mean = 6.89 % Relative Standard Deviation = 4.2 Number of Observations = 15 Blind Sample ID = 75184-25188 Mean = 10.74 % Relative Standard Deviation = 2.3 Number of Observations = 4 Blind Sample ID = 25206-75204 Mean = 7.83 % Relative Standard Deviation = 0.9 Number of Observations = 4 Blind Sample ID = 25204-75202 Mean = 6.72 % Relative Standard Deviation = 3.1 Number of Observations = 4 Blind Sample ID = 25202-75206 Mean = 7.36 % Relative Standard Deviation = 2.9 Number of Observations = 6 Blind Sample ID = 25202-75198 Mean = 6.89 % Relative Standard Deviation = 1.7 Number of Observations = 6 Blind Sample ID = 25200-75202 Mean = 8.48 % Relative Standard Deviation = 1.3 Number of Observations = 6 Blind Sample ID = 25198-75200 Mean = 11.76 % Relative Standard Deviation = 1.5 Number of Observations = 8 Blind Sample ID = 25198-75194 Mean = 7.22 % Relative Standard Deviation = 2.9 Number of Observations = 8 Blind Sample ID = 25196-75198 Mean = 7.72 % Relative Standard Deviation = 0.9 Number of Observations = 8 Blind Sample ID = 25194-75196 Mean = 9.10 % Relative Standard Deviation = 1.5 Number of Observations = 14 Blind Sample ID = 25194-75192 Mean = 10.71 % Relative Standard Deviation = 4.3 Number of Observations = 16 Blind Sample ID = 25192-75190 Mean = 12.69 % Relative Standard Deviation = 5.0 Number of Observations = 16 Blind Sample ID = 25190-75194 Mean = 7.32 % Relative Standard Deviation = 2.8 Number of Observations = 24 Blind Sample ID = 25188-75192 Mean = 6.73 % Relative Standard Deviation = 2.3 Number of Observations = 11 Blind Sample ID = 25186-75188 Mean = 9.88 % Relative Standard Deviation = 2.3 Number of Observations = 8 Blind Sample ID = 25184-75186
The SGPlot Procedure


- Silica, FIL, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00955, MCode: PLA11
Dates: 10/03/06 through 09/29/21
Open Data Set

Mean = 7.37 % Relative Standard Deviation = 2.4 Number of Observations = 17 Blind Sample ID = T239 Mean = 8.35 % Relative Standard Deviation = 3.7 Number of Observations = 17 Blind Sample ID = T237 Mean = 14.22 % Relative Standard Deviation = 2.6 Number of Observations = 35 Blind Sample ID = T235 Mean = 11.84 % Relative Standard Deviation = 2.5 Number of Observations = 29 Blind Sample ID = T233 Mean = 5.44 % Relative Standard Deviation = 1.9 Number of Observations = 47 Blind Sample ID = T231 Mean = 14.92 % Relative Standard Deviation = 3.1 Number of Observations = 54 Blind Sample ID = T229 Mean = 4.86 % Relative Standard Deviation = 2.1 Number of Observations = 50 Blind Sample ID = T227 Mean = 15.37 % Relative Standard Deviation = 4.9 Number of Observations = 51 Blind Sample ID = T225 Mean = 7.88 % Relative Standard Deviation = 2.2 Number of Observations = 59 Blind Sample ID = T223 Mean = 12.97 % Relative Standard Deviation = 2.3 Number of Observations = 48 Blind Sample ID = T221 Mean = 9.12 % Relative Standard Deviation = 2.4 Number of Observations = 49 Blind Sample ID = T219 Mean = 9.63 % Relative Standard Deviation = 2.6 Number of Observations = 60 Blind Sample ID = T217 Mean = 2.36 % Relative Standard Deviation = 3.8 Number of Observations = 37 Blind Sample ID = T215 Mean = 6.72 % Relative Standard Deviation = 3.3 Number of Observations = 34 Blind Sample ID = T211 Mean = 12.93 % Relative Standard Deviation = 3.3 Number of Observations = 20 Blind Sample ID = T209 Mean = 4.68 % Relative Standard Deviation = 5.3 Number of Observations = 36 Blind Sample ID = 75213-25DIW Mean = 4.84 % Relative Standard Deviation = 3.2 Number of Observations = 20 Blind Sample ID = 75211-25DIW Mean = 9.22 % Relative Standard Deviation = 4.6 Number of Observations = 35 Blind Sample ID = 75209-25DIW Mean = 6.03 % Relative Standard Deviation = 2.9 Number of Observations = 18 Blind Sample ID = 75207-25DIW Mean = 6.46 % Relative Standard Deviation = 2.6 Number of Observations = 38 Blind Sample ID = 75205-25DIW Mean = 3.56 % Relative Standard Deviation = 3.8 Number of Observations = 20 Blind Sample ID = 75203-25DIW Mean = 9.60 % Relative Standard Deviation = 4.3 Number of Observations = 46 Blind Sample ID = 75201-25DIW Mean = 7.39 % Relative Standard Deviation = 4.1 Number of Observations = 22 Blind Sample ID = 75199-25201 Mean = 10.94 % Relative Standard Deviation = 4.0 Number of Observations = 46 Blind Sample ID = 75197-25DIW Mean = 7.31 % Relative Standard Deviation = 2.0 Number of Observations = 24 Blind Sample ID = 75195-25197 Mean = 10.06 % Relative Standard Deviation = 4.3 Number of Observations = 48 Blind Sample ID = 75193-25DIW Mean = 14.00 % Relative Standard Deviation = 2.4 Number of Observations = 26 Blind Sample ID = 75193-25197 Mean = 3.48 % Relative Standard Deviation = 4.1 Number of Observations = 46 Blind Sample ID = 75191-25DIW Mean = 9.09 % Relative Standard Deviation = 3.1 Number of Observations = 48 Blind Sample ID = 75189-25DIW Mean = 12.39 % Relative Standard Deviation = 3.5 Number of Observations = 26 Blind Sample ID = 75189-25193 Mean = 10.17 % Relative Standard Deviation = 4.0 Number of Observations = 22 Blind Sample ID = 75189-25191 Mean = 4.89 % Relative Standard Deviation = 4.5 Number of Observations = 46 Blind Sample ID = 75187-25DIW Mean = 7.72 % Relative Standard Deviation = 2.6 Number of Observations = 21 Blind Sample ID = 75185-25DIW Mean = 6.29 % Relative Standard Deviation = 2.6 Number of Observations = 44 Blind Sample ID = 75183-25DIW Mean = 9.96 % Relative Standard Deviation = 1.5 Number of Observations = 18 Blind Sample ID = 75181-25DIW Mean = 11.20 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = 75179-25DIW Mean = 5.66 % Relative Standard Deviation = 4.0 Number of Observations = 24 Blind Sample ID = 50187-50191 Mean = 9.42 % Relative Standard Deviation = 3.6 Number of Observations = 18 Blind Sample ID = 50187-50189 Mean = 7.42 % Relative Standard Deviation = 1.7 Number of Observations = 24 Blind Sample ID = 50187-50183 Mean = 8.33 % Relative Standard Deviation = 2.6 Number of Observations = 24 Blind Sample ID = 50185-50187 Mean = 9.28 % Relative Standard Deviation = 2.2 Number of Observations = 26 Blind Sample ID = 50183-50185 Mean = 6.35 % Relative Standard Deviation = 5.4 Number of Observations = 19 Blind Sample ID = 25213-75211 Mean = 10.93 % Relative Standard Deviation = 3.6 Number of Observations = 18 Blind Sample ID = 25211-75209 Mean = 7.65 % Relative Standard Deviation = 3.8 Number of Observations = 18 Blind Sample ID = 25209-75213 Mean = 9.07 % Relative Standard Deviation = 3.1 Number of Observations = 18 Blind Sample ID = 25209-75207 Mean = 8.55 % Relative Standard Deviation = 2.2 Number of Observations = 18 Blind Sample ID = 25207-75205 Mean = 11.40 % Relative Standard Deviation = 2.0 Number of Observations = 18 Blind Sample ID = 25205-75209 Mean = 11.54 % Relative Standard Deviation = 2.6 Number of Observations = 17 Blind Sample ID = 25205-75201 Mean = 7.63 % Relative Standard Deviation = 3.2 Number of Observations = 18 Blind Sample ID = 25203-75205 Mean = 6.60 % Relative Standard Deviation = 3.3 Number of Observations = 22 Blind Sample ID = 25201-75203 Mean = 13.97 % Relative Standard Deviation = 3.4 Number of Observations = 22 Blind Sample ID = 25201-75197 Mean = 11.23 % Relative Standard Deviation = 4.5 Number of Observations = 24 Blind Sample ID = 25199-75201 Mean = 7.63 % Relative Standard Deviation = 4.0 Number of Observations = 24 Blind Sample ID = 25197-75199 Mean = 11.84 % Relative Standard Deviation = 4.0 Number of Observations = 21 Blind Sample ID = 25195-75197 Mean = 7.26 % Relative Standard Deviation = 2.2 Number of Observations = 24 Blind Sample ID = 25193-75195 Mean = 11.25 % Relative Standard Deviation = 3.0 Number of Observations = 24 Blind Sample ID = 25191-75193 Mean = 12.08 % Relative Standard Deviation = 2.4 Number of Observations = 31 Blind Sample ID = 25183-75181 Mean = 14.44 % Relative Standard Deviation = 2.9 Number of Observations = 23 Blind Sample ID = 25181-75179 Mean = 9.92 % Relative Standard Deviation = 2.4 Number of Observations = 16 Blind Sample ID = 25179-75183
The SGPlot Procedure


- Silica, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00956, MCode: PLA15
Dates: 02/29/12 through 03/24/15
Open Data Set

Mean = 4.59 % Relative Standard Deviation = 2.0 Number of Observations = 3 Blind Sample ID = 75211-25DIW Mean = 9.10 % Relative Standard Deviation = 2.3 Number of Observations = 10 Blind Sample ID = 75209-25DIW Mean = 5.88 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = 75207-25DIW Mean = 6.34 % Relative Standard Deviation = 2.2 Number of Observations = 14 Blind Sample ID = 75205-25DIW Mean = 3.54 % Relative Standard Deviation = 2.2 Number of Observations = 6 Blind Sample ID = 75203-25DIW Mean = 9.14 % Relative Standard Deviation = 2.6 Number of Observations = 11 Blind Sample ID = 75201-25DIW Mean = 6.95 % Relative Standard Deviation = 2.8 Number of Observations = 6 Blind Sample ID = 75199-25201 Mean = 6.00 % Relative Standard Deviation = 2.5 Number of Observations = 4 Blind Sample ID = 25213-75211 Mean = 8.85 % Relative Standard Deviation = 1.6 Number of Observations = 8 Blind Sample ID = 25209-75207 Mean = 8.30 % Relative Standard Deviation = 3.3 Number of Observations = 8 Blind Sample ID = 25207-75205 Mean = 11.11 % Relative Standard Deviation = 2.5 Number of Observations = 8 Blind Sample ID = 25205-75209 Mean = 11.27 % Relative Standard Deviation = 3.9 Number of Observations = 6 Blind Sample ID = 25205-75201 Mean = 7.56 % Relative Standard Deviation = 1.0 Number of Observations = 6 Blind Sample ID = 25203-75205 Mean = 6.54 % Relative Standard Deviation = 1.5 Number of Observations = 7 Blind Sample ID = 25201-75203 Mean = 12.71 % Relative Standard Deviation = 2.2 Number of Observations = 6 Blind Sample ID = 25201-75197
The SGPlot Procedure


- Silica, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00956, MCode: PLO07
Dates: 05/28/15 through 09/15/21
Open Data Set

Mean = 7.14 % Relative Standard Deviation = 2.4 Number of Observations = 4 Blind Sample ID = T239 Mean = 13.67 % Relative Standard Deviation = 3.6 Number of Observations = 8 Blind Sample ID = T235 Mean = 11.64 % Relative Standard Deviation = 1.1 Number of Observations = 8 Blind Sample ID = T233 Mean = 5.42 % Relative Standard Deviation = 1.9 Number of Observations = 12 Blind Sample ID = T231 Mean = 14.50 % Relative Standard Deviation = 2.4 Number of Observations = 10 Blind Sample ID = T229 Mean = 4.81 % Relative Standard Deviation = 2.1 Number of Observations = 12 Blind Sample ID = T227 Mean = 15.02 % Relative Standard Deviation = 4.7 Number of Observations = 12 Blind Sample ID = T225 Mean = 7.88 % Relative Standard Deviation = 2.8 Number of Observations = 11 Blind Sample ID = T223 Mean = 12.99 % Relative Standard Deviation = 2.3 Number of Observations = 12 Blind Sample ID = T221 Mean = 8.92 % Relative Standard Deviation = 3.9 Number of Observations = 14 Blind Sample ID = T219 Mean = 9.39 % Relative Standard Deviation = 4.5 Number of Observations = 16 Blind Sample ID = T217 Mean = 2.28 % Relative Standard Deviation = 4.1 Number of Observations = 11 Blind Sample ID = T215 Mean = 6.49 % Relative Standard Deviation = 2.6 Number of Observations = 10 Blind Sample ID = T211 Mean = 12.65 % Relative Standard Deviation = 2.5 Number of Observations = 8 Blind Sample ID = T209 Mean = 4.44 % Relative Standard Deviation = 3.3 Number of Observations = 11 Blind Sample ID = 75213-25DIW Mean = 4.65 % Relative Standard Deviation = 1.6 Number of Observations = 5 Blind Sample ID = 75211-25DIW Mean = 9.16 % Relative Standard Deviation = 1.2 Number of Observations = 4 Blind Sample ID = 75209-25DIW Mean = 6.05 % Relative Standard Deviation = 0.9 Number of Observations = 4 Blind Sample ID = 25213-75211 Mean = 10.67 % Relative Standard Deviation = 1.0 Number of Observations = 4 Blind Sample ID = 25211-75209 Mean = 7.27 % Relative Standard Deviation = 1.0 Number of Observations = 4 Blind Sample ID = 25209-75213
The SGPlot Procedure


- Sodium, FIL, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00930, MCode: PLA11
Dates: 10/03/06 through 09/29/21
Open Data Set

Mean = 105.46 % Relative Standard Deviation = 1.9 Number of Observations = 15 Blind Sample ID = T239 Mean = 21.19 % Relative Standard Deviation = 2.6 Number of Observations = 13 Blind Sample ID = T237 Mean = 27.18 % Relative Standard Deviation = 1.4 Number of Observations = 28 Blind Sample ID = T235 Mean = 16.21 % Relative Standard Deviation = 2.2 Number of Observations = 25 Blind Sample ID = T233 Mean = 34.68 % Relative Standard Deviation = 1.6 Number of Observations = 41 Blind Sample ID = T231 Mean = 25.49 % Relative Standard Deviation = 2.1 Number of Observations = 43 Blind Sample ID = T229 Mean = 6.43 % Relative Standard Deviation = 2.8 Number of Observations = 44 Blind Sample ID = T227 Mean = 115.61 % Relative Standard Deviation = 2.0 Number of Observations = 41 Blind Sample ID = T225 Mean = 7.80 % Relative Standard Deviation = 3.0 Number of Observations = 47 Blind Sample ID = T223 Mean = 17.70 % Relative Standard Deviation = 3.0 Number of Observations = 42 Blind Sample ID = T221 Mean = 20.01 % Relative Standard Deviation = 3.6 Number of Observations = 42 Blind Sample ID = T219 Mean = 20.58 % Relative Standard Deviation = 3.4 Number of Observations = 48 Blind Sample ID = T217 Mean = 29.39 % Relative Standard Deviation = 6.0 Number of Observations = 32 Blind Sample ID = T215 Mean = 10.06 % Relative Standard Deviation = 3.9 Number of Observations = 27 Blind Sample ID = T211 Mean = 21.43 % Relative Standard Deviation = 2.9 Number of Observations = 16 Blind Sample ID = T209 Mean = 1.37 % Relative Standard Deviation = 3.5 Number of Observations = 7 Blind Sample ID = P70 Mean = 0.41 % Relative Standard Deviation = 2.1 Number of Observations = 6 Blind Sample ID = P68 Mean = 2.63 % Relative Standard Deviation = 3.0 Number of Observations = 7 Blind Sample ID = P66 Mean = 0.10 % Relative Standard Deviation = 4.1 Number of Observations = 6 Blind Sample ID = P65 Mean = 1.45 % Relative Standard Deviation = 4.0 Number of Observations = 8 Blind Sample ID = P64 Mean = 0.18 % Relative Standard Deviation = 17.0 Number of Observations = 14 Blind Sample ID = P63 Mean = 2.23 % Relative Standard Deviation = 0.8 Number of Observations = 8 Blind Sample ID = P62 Mean = 4.83 % Relative Standard Deviation = 3.4 Number of Observations = 16 Blind Sample ID = P61 Mean = 2.26 % Relative Standard Deviation = 2.6 Number of Observations = 8 Blind Sample ID = P60 Mean = 0.17 % Relative Standard Deviation = 11.5 Number of Observations = 16 Blind Sample ID = P59 Mean = 1.63 % Relative Standard Deviation = 4.0 Number of Observations = 8 Blind Sample ID = P58 Mean = 0.39 % Relative Standard Deviation = 7.6 Number of Observations = 16 Blind Sample ID = P57 Mean = 0.76 % Relative Standard Deviation = 4.4 Number of Observations = 8 Blind Sample ID = P56 Mean = 0.73 % Relative Standard Deviation = 3.7 Number of Observations = 14 Blind Sample ID = P55 Mean = 0.31 % Relative Standard Deviation = 6.6 Number of Observations = 8 Blind Sample ID = P54 Mean = 0.32 % Relative Standard Deviation = 6.9 Number of Observations = 16 Blind Sample ID = P53 Mean = 0.22 % Relative Standard Deviation = 7.4 Number of Observations = 8 Blind Sample ID = P52 Mean = 1.25 % Relative Standard Deviation = 6.0 Number of Observations = 24 Blind Sample ID = P51 Mean = 0.59 % Relative Standard Deviation = 4.8 Number of Observations = 32 Blind Sample ID = P50 Mean = 0.54 % Relative Standard Deviation = 5.4 Number of Observations = 31 Blind Sample ID = P49 Mean = 1.03 % Relative Standard Deviation = 3.7 Number of Observations = 30 Blind Sample ID = P48 Mean = 1.69 % Relative Standard Deviation = 3.6 Number of Observations = 14 Blind Sample ID = P47 Mean = 0.65 % Relative Standard Deviation = 4.5 Number of Observations = 26 Blind Sample ID = P46 Mean = 0.13 % Relative Standard Deviation = 13.1 Number of Observations = 31 Blind Sample ID = P45 Mean = 0.99 % Relative Standard Deviation = 4.6 Number of Observations = 27 Blind Sample ID = P44 Mean = 0.24 % Relative Standard Deviation = 8.8 Number of Observations = 17 Blind Sample ID = P43 Mean = 30.08 % Relative Standard Deviation = 3.3 Number of Observations = 27 Blind Sample ID = 75213-25DIW Mean = 7.85 % Relative Standard Deviation = 3.7 Number of Observations = 16 Blind Sample ID = 75211-25DIW Mean = 15.85 % Relative Standard Deviation = 4.3 Number of Observations = 27 Blind Sample ID = 75209-25DIW Mean = 16.39 % Relative Standard Deviation = 2.2 Number of Observations = 14 Blind Sample ID = 75207-25DIW Mean = 6.27 % Relative Standard Deviation = 3.3 Number of Observations = 29 Blind Sample ID = 75205-25DIW Mean = 8.15 % Relative Standard Deviation = 4.3 Number of Observations = 12 Blind Sample ID = 75203-25DIW Mean = 36.60 % Relative Standard Deviation = 3.0 Number of Observations = 37 Blind Sample ID = 75201-25DIW Mean = 18.15 % Relative Standard Deviation = 4.4 Number of Observations = 18 Blind Sample ID = 75199-25201 Mean = 28.87 % Relative Standard Deviation = 3.1 Number of Observations = 32 Blind Sample ID = 75197-25DIW Mean = 14.53 % Relative Standard Deviation = 2.0 Number of Observations = 16 Blind Sample ID = 75195-25197 Mean = 15.88 % Relative Standard Deviation = 4.6 Number of Observations = 32 Blind Sample ID = 75193-25DIW Mean = 25.61 % Relative Standard Deviation = 2.3 Number of Observations = 18 Blind Sample ID = 75193-25197 Mean = 7.73 % Relative Standard Deviation = 3.3 Number of Observations = 30 Blind Sample ID = 75191-25DIW Mean = 36.87 % Relative Standard Deviation = 5.1 Number of Observations = 32 Blind Sample ID = 75189-25DIW Mean = 41.37 % Relative Standard Deviation = 4.7 Number of Observations = 18 Blind Sample ID = 75189-25193 Mean = 38.77 % Relative Standard Deviation = 3.7 Number of Observations = 14 Blind Sample ID = 75189-25191 Mean = 13.64 % Relative Standard Deviation = 3.2 Number of Observations = 29 Blind Sample ID = 75187-25DIW Mean = 11.00 % Relative Standard Deviation = 3.1 Number of Observations = 14 Blind Sample ID = 75185-25DIW Mean = 9.65 % Relative Standard Deviation = 3.1 Number of Observations = 29 Blind Sample ID = 75183-25DIW Mean = 11.53 % Relative Standard Deviation = 2.3 Number of Observations = 11 Blind Sample ID = 75181-25DIW Mean = 19.78 % Relative Standard Deviation = 3.0 Number of Observations = 16 Blind Sample ID = 75179-25DIW Mean = 14.38 % Relative Standard Deviation = 2.7 Number of Observations = 16 Blind Sample ID = 50187-50191 Mean = 33.82 % Relative Standard Deviation = 2.7 Number of Observations = 18 Blind Sample ID = 50187-50189 Mean = 15.53 % Relative Standard Deviation = 4.2 Number of Observations = 16 Blind Sample ID = 50187-50183 Mean = 16.47 % Relative Standard Deviation = 3.3 Number of Observations = 16 Blind Sample ID = 50185-50187 Mean = 13.77 % Relative Standard Deviation = 3.0 Number of Observations = 18 Blind Sample ID = 50183-50185 Mean = 17.42 % Relative Standard Deviation = 5.2 Number of Observations = 16 Blind Sample ID = 25213-75211 Mean = 18.47 % Relative Standard Deviation = 4.5 Number of Observations = 14 Blind Sample ID = 25211-75209 Mean = 35.13 % Relative Standard Deviation = 3.6 Number of Observations = 14 Blind Sample ID = 25209-75213 Mean = 21.88 % Relative Standard Deviation = 3.3 Number of Observations = 16 Blind Sample ID = 25209-75207 Mean = 11.58 % Relative Standard Deviation = 3.5 Number of Observations = 14 Blind Sample ID = 25207-75205 Mean = 17.30 % Relative Standard Deviation = 4.0 Number of Observations = 14 Blind Sample ID = 25205-75209 Mean = 36.81 % Relative Standard Deviation = 3.8 Number of Observations = 14 Blind Sample ID = 25205-75201 Mean = 8.93 % Relative Standard Deviation = 5.2 Number of Observations = 12 Blind Sample ID = 25203-75205 Mean = 20.22 % Relative Standard Deviation = 3.5 Number of Observations = 14 Blind Sample ID = 25201-75203 Mean = 40.90 % Relative Standard Deviation = 2.7 Number of Observations = 18 Blind Sample ID = 25201-75197 Mean = 38.22 % Relative Standard Deviation = 2.5 Number of Observations = 20 Blind Sample ID = 25199-75201 Mean = 15.59 % Relative Standard Deviation = 3.2 Number of Observations = 18 Blind Sample ID = 25197-75199 Mean = 30.13 % Relative Standard Deviation = 2.8 Number of Observations = 13 Blind Sample ID = 25195-75197 Mean = 10.39 % Relative Standard Deviation = 2.0 Number of Observations = 16 Blind Sample ID = 25193-75195 Mean = 18.11 % Relative Standard Deviation = 4.4 Number of Observations = 16 Blind Sample ID = 25191-75193 Mean = 14.84 % Relative Standard Deviation = 3.1 Number of Observations = 23 Blind Sample ID = 25183-75181 Mean = 23.80 % Relative Standard Deviation = 2.4 Number of Observations = 15 Blind Sample ID = 25181-75179 Mean = 16.52 % Relative Standard Deviation = 1.9 Number of Observations = 8 Blind Sample ID = 25179-75183
The SGPlot Procedure


- Sodium, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00929, MCode: PLA15
Dates: 10/30/07 through 03/24/15
Open Data Set

Mean = 7.23 % Relative Standard Deviation = 6.3 Number of Observations = 3 Blind Sample ID = 75211-25DIW Mean = 15.03 % Relative Standard Deviation = 1.8 Number of Observations = 10 Blind Sample ID = 75209-25DIW Mean = 16.31 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = 75207-25DIW Mean = 6.17 % Relative Standard Deviation = 2.3 Number of Observations = 14 Blind Sample ID = 75205-25DIW Mean = 7.96 % Relative Standard Deviation = 2.5 Number of Observations = 6 Blind Sample ID = 75203-25DIW Mean = 35.12 % Relative Standard Deviation = 2.0 Number of Observations = 16 Blind Sample ID = 75201-25DIW Mean = 17.14 % Relative Standard Deviation = 1.6 Number of Observations = 6 Blind Sample ID = 75199-25201 Mean = 27.54 % Relative Standard Deviation = 1.6 Number of Observations = 16 Blind Sample ID = 75197-25DIW Mean = 14.00 % Relative Standard Deviation = 3.8 Number of Observations = 6 Blind Sample ID = 75195-25197 Mean = 15.34 % Relative Standard Deviation = 3.0 Number of Observations = 16 Blind Sample ID = 75193-25DIW Mean = 24.24 % Relative Standard Deviation = 2.2 Number of Observations = 8 Blind Sample ID = 75193-25197 Mean = 7.47 % Relative Standard Deviation = 2.7 Number of Observations = 16 Blind Sample ID = 75191-25DIW Mean = 35.41 % Relative Standard Deviation = 5.0 Number of Observations = 12 Blind Sample ID = 75189-25DIW Mean = 41.24 % Relative Standard Deviation = 3.5 Number of Observations = 8 Blind Sample ID = 75189-25193 Mean = 39.01 % Relative Standard Deviation = 2.4 Number of Observations = 6 Blind Sample ID = 75189-25191 Mean = 13.22 % Relative Standard Deviation = 3.6 Number of Observations = 12 Blind Sample ID = 75187-25DIW Mean = 10.86 % Relative Standard Deviation = 2.9 Number of Observations = 6 Blind Sample ID = 75185-25DIW Mean = 9.61 % Relative Standard Deviation = 2.0 Number of Observations = 6 Blind Sample ID = 75183-25DIW Mean = 13.88 % Relative Standard Deviation = 3.0 Number of Observations = 6 Blind Sample ID = 50187-50191 Mean = 33.77 % Relative Standard Deviation = 6.4 Number of Observations = 8 Blind Sample ID = 50187-50189 Mean = 15.15 % Relative Standard Deviation = 2.1 Number of Observations = 6 Blind Sample ID = 50187-50183 Mean = 16.24 % Relative Standard Deviation = 3.2 Number of Observations = 8 Blind Sample ID = 50185-50187 Mean = 13.58 % Relative Standard Deviation = 2.4 Number of Observations = 8 Blind Sample ID = 50183-50185 Mean = 16.62 % Relative Standard Deviation = 2.5 Number of Observations = 4 Blind Sample ID = 25213-75211 Mean = 21.33 % Relative Standard Deviation = 1.5 Number of Observations = 8 Blind Sample ID = 25209-75207 Mean = 11.56 % Relative Standard Deviation = 2.8 Number of Observations = 8 Blind Sample ID = 25207-75205 Mean = 17.35 % Relative Standard Deviation = 1.9 Number of Observations = 8 Blind Sample ID = 25205-75209 Mean = 37.14 % Relative Standard Deviation = 2.2 Number of Observations = 6 Blind Sample ID = 25205-75201 Mean = 8.88 % Relative Standard Deviation = 2.1 Number of Observations = 6 Blind Sample ID = 25203-75205 Mean = 19.59 % Relative Standard Deviation = 1.2 Number of Observations = 8 Blind Sample ID = 25201-75203 Mean = 39.54 % Relative Standard Deviation = 2.3 Number of Observations = 6 Blind Sample ID = 25201-75197 Mean = 36.94 % Relative Standard Deviation = 1.2 Number of Observations = 8 Blind Sample ID = 25199-75201 Mean = 15.02 % Relative Standard Deviation = 2.2 Number of Observations = 6 Blind Sample ID = 25197-75199 Mean = 29.08 % Relative Standard Deviation = 2.5 Number of Observations = 5 Blind Sample ID = 25195-75197 Mean = 9.94 % Relative Standard Deviation = 3.5 Number of Observations = 6 Blind Sample ID = 25193-75195 Mean = 18.00 % Relative Standard Deviation = 1.9 Number of Observations = 6 Blind Sample ID = 25191-75193
The SGPlot Procedure


- Sodium, UNF, ICP-OES -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00929, MCode: PLO07
Dates: 05/30/15 through 09/15/21
Open Data Set

Mean = 104.20 % Relative Standard Deviation = 2.4 Number of Observations = 4 Blind Sample ID = T239 Mean = 26.60 % Relative Standard Deviation = 3.2 Number of Observations = 8 Blind Sample ID = T235 Mean = 16.27 % Relative Standard Deviation = 0.7 Number of Observations = 8 Blind Sample ID = T233 Mean = 34.78 % Relative Standard Deviation = 1.6 Number of Observations = 12 Blind Sample ID = T231 Mean = 25.54 % Relative Standard Deviation = 1.8 Number of Observations = 10 Blind Sample ID = T229 Mean = 6.53 % Relative Standard Deviation = 2.4 Number of Observations = 12 Blind Sample ID = T227 Mean = 114.54 % Relative Standard Deviation = 1.5 Number of Observations = 12 Blind Sample ID = T225 Mean = 7.96 % Relative Standard Deviation = 1.9 Number of Observations = 11 Blind Sample ID = T223 Mean = 17.87 % Relative Standard Deviation = 2.1 Number of Observations = 12 Blind Sample ID = T221 Mean = 19.95 % Relative Standard Deviation = 2.8 Number of Observations = 14 Blind Sample ID = T219 Mean = 20.60 % Relative Standard Deviation = 2.7 Number of Observations = 16 Blind Sample ID = T217 Mean = 29.18 % Relative Standard Deviation = 3.1 Number of Observations = 11 Blind Sample ID = T215 Mean = 10.02 % Relative Standard Deviation = 3.0 Number of Observations = 10 Blind Sample ID = T211 Mean = 20.98 % Relative Standard Deviation = 2.8 Number of Observations = 8 Blind Sample ID = T209 Mean = 29.25 % Relative Standard Deviation = 3.8 Number of Observations = 11 Blind Sample ID = 75213-25DIW Mean = 7.62 % Relative Standard Deviation = 1.7 Number of Observations = 5 Blind Sample ID = 75211-25DIW Mean = 16.04 % Relative Standard Deviation = 2.4 Number of Observations = 4 Blind Sample ID = 75209-25DIW Mean = 17.09 % Relative Standard Deviation = 1.7 Number of Observations = 4 Blind Sample ID = 25213-75211 Mean = 18.38 % Relative Standard Deviation = 1.9 Number of Observations = 4 Blind Sample ID = 25211-75209 Mean = 34.24 % Relative Standard Deviation = 1.9 Number of Observations = 4 Blind Sample ID = 25209-75213
The SGPlot Procedure


- Solids @105 Deg C, UNF, GRAV -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00500, MCode: ROE12
Dates: 10/18/06 through 09/23/21
Open Data Set

Mean = 263.14 % Relative Standard Deviation = 2.3 Number of Observations = 3 Blind Sample ID = M232 Mean = 149.85 % Relative Standard Deviation = 4.1 Number of Observations = 4 Blind Sample ID = M230 Mean = 106.47 % Relative Standard Deviation = 7.4 Number of Observations = 4 Blind Sample ID = M228 Mean = 128.37 % Relative Standard Deviation = 3.0 Number of Observations = 7 Blind Sample ID = M226 Mean = 63.76 % Relative Standard Deviation = 11.1 Number of Observations = 6 Blind Sample ID = M224 Mean = 90.82 % Relative Standard Deviation = 6.6 Number of Observations = 5 Blind Sample ID = M222 Mean = 125.70 % Relative Standard Deviation = 5.0 Number of Observations = 12 Blind Sample ID = M220 Mean = 490.41 % Relative Standard Deviation = 2.6 Number of Observations = 12 Blind Sample ID = M218 Mean = 96.51 % Relative Standard Deviation = 7.9 Number of Observations = 7 Blind Sample ID = M216 Mean = 226.50 % Relative Standard Deviation = 3.8 Number of Observations = 14 Blind Sample ID = M214 Mean = 57.33 % Relative Standard Deviation = 6.9 Number of Observations = 8 Blind Sample ID = M212 Mean = 72.63 % Relative Standard Deviation = 5.6 Number of Observations = 9 Blind Sample ID = M210 Mean = 260.93 % Relative Standard Deviation = 4.5 Number of Observations = 14 Blind Sample ID = M208 Mean = 136.36 % Relative Standard Deviation = 3.6 Number of Observations = 6 Blind Sample ID = M206 Mean = 147.87 % Relative Standard Deviation = 3.7 Number of Observations = 8 Blind Sample ID = M204 Mean = 53.49 % Relative Standard Deviation = 7.5 Number of Observations = 4 Blind Sample ID = M202 Mean = 106.26 % Relative Standard Deviation = 9.2 Number of Observations = 16 Blind Sample ID = 75206-25DIW Mean = 110.40 % Relative Standard Deviation = 4.7 Number of Observations = 4 Blind Sample ID = 75204-25DIW Mean = 36.47 % Relative Standard Deviation = 24.5 Number of Observations = 12 Blind Sample ID = 75202-25DIW Mean = 66.43 % Relative Standard Deviation = 12.4 Number of Observations = 4 Blind Sample ID = 75200-25DIW Mean = 63.00 % Relative Standard Deviation = 7.8 Number of Observations = 8 Blind Sample ID = 75198-25DIW Mean = 152.15 % Relative Standard Deviation = 1.2 Number of Observations = 4 Blind Sample ID = 75196-25DIW Mean = 138.68 % Relative Standard Deviation = 4.9 Number of Observations = 12 Blind Sample ID = 75194-25DIW Mean = 44.11 % Relative Standard Deviation = 20.1 Number of Observations = 16 Blind Sample ID = 75192-25DIW Mean = 88.20 % Relative Standard Deviation = 6.5 Number of Observations = 16 Blind Sample ID = 75190-25DIW Mean = 105.16 % Relative Standard Deviation = 4.1 Number of Observations = 4 Blind Sample ID = 75190-25192 Mean = 144.34 % Relative Standard Deviation = 4.7 Number of Observations = 16 Blind Sample ID = 75188-25DIW Mean = 169.52 % Relative Standard Deviation = 10.3 Number of Observations = 4 Blind Sample ID = 75188-25190 Mean = 85.71 % Relative Standard Deviation = 14.1 Number of Observations = 4 Blind Sample ID = 75186-25DIW Mean = 75.83 % Relative Standard Deviation = 6.4 Number of Observations = 15 Blind Sample ID = 75184-25DIW Mean = 124.63 % Relative Standard Deviation = 6.1 Number of Observations = 4 Blind Sample ID = 75184-25188 Mean = 76.45 % Relative Standard Deviation = 5.4 Number of Observations = 4 Blind Sample ID = 75182-25DIW Mean = 131.29 % Relative Standard Deviation = 4.1 Number of Observations = 15 Blind Sample ID = 75180-25DIW Mean = 318.58 % Relative Standard Deviation = 2.4 Number of Observations = 8 Blind Sample ID = 75178-25DIW Mean = 67.84 % Relative Standard Deviation = 5.4 Number of Observations = 14 Blind Sample ID = 75176-25DIW Mean = 100.25 % Relative Standard Deviation = 4.0 Number of Observations = 8 Blind Sample ID = 75174-25DIW Mean = 72.26 % Relative Standard Deviation = 7.8 Number of Observations = 8 Blind Sample ID = 75172-25DIW Mean = 98.51 % Relative Standard Deviation = 9.8 Number of Observations = 4 Blind Sample ID = 75172-25176 Mean = 142.59 % Relative Standard Deviation = 6.3 Number of Observations = 4 Blind Sample ID = 25206-75204 Mean = 75.14 % Relative Standard Deviation = 5.2 Number of Observations = 8 Blind Sample ID = 25204-75202 Mean = 114.76 % Relative Standard Deviation = 4.0 Number of Observations = 4 Blind Sample ID = 25202-75206 Mean = 90.75 % Relative Standard Deviation = 3.5 Number of Observations = 4 Blind Sample ID = 25198-75200 Mean = 166.21 % Relative Standard Deviation = 6.1 Number of Observations = 4 Blind Sample ID = 25198-75194 Mean = 122.11 % Relative Standard Deviation = 9.5 Number of Observations = 8 Blind Sample ID = 25196-75198 Mean = 192.70 % Relative Standard Deviation = 4.8 Number of Observations = 4 Blind Sample ID = 25194-75196 Mean = 97.13 % Relative Standard Deviation = 15.4 Number of Observations = 4 Blind Sample ID = 25194-75192 Mean = 107.40 % Relative Standard Deviation = 7.5 Number of Observations = 4 Blind Sample ID = 25192-75190 Mean = 171.61 % Relative Standard Deviation = 5.4 Number of Observations = 4 Blind Sample ID = 25190-75194 Mean = 78.69 % Relative Standard Deviation = 14.6 Number of Observations = 3 Blind Sample ID = 25188-75192 Mean = 172.91 % Relative Standard Deviation = 3.1 Number of Observations = 4 Blind Sample ID = 25186-75188 Mean = 119.44 % Relative Standard Deviation = 5.1 Number of Observations = 8 Blind Sample ID = 25184-75186 Mean = 95.07 % Relative Standard Deviation = 5.5 Number of Observations = 6 Blind Sample ID = 25184-75182 Mean = 151.70 % Relative Standard Deviation = 3.1 Number of Observations = 4 Blind Sample ID = 25182-75180 Mean = 119.87 % Relative Standard Deviation = 10.8 Number of Observations = 4 Blind Sample ID = 25180-75184 Mean = 372.48 % Relative Standard Deviation = 3.2 Number of Observations = 4 Blind Sample ID = 25180-75178 Mean = 117.95 % Relative Standard Deviation = 6.0 Number of Observations = 4 Blind Sample ID = 25180-75176 Mean = 175.27 % Relative Standard Deviation = 3.9 Number of Observations = 4 Blind Sample ID = 25178-75176 Mean = 96.32 % Relative Standard Deviation = 7.5 Number of Observations = 4 Blind Sample ID = 25174-75176 Mean = 127.45 % Relative Standard Deviation = 3.8 Number of Observations = 4 Blind Sample ID = 25172-75174
The SGPlot Procedure


- Solids, ROE@180 Deg C (TDS), FIL, GRAV -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 70300, MCode: ROE10
Dates: 10/17/06 through 09/29/21
Open Data Set

Mean = 269.45 % Relative Standard Deviation = 7.5 Number of Observations = 6 Blind Sample ID = M232 Mean = 144.81 % Relative Standard Deviation = 3.2 Number of Observations = 7 Blind Sample ID = M230 Mean = 97.63 % Relative Standard Deviation = 3.7 Number of Observations = 10 Blind Sample ID = M228 Mean = 123.01 % Relative Standard Deviation = 10.4 Number of Observations = 14 Blind Sample ID = M226 Mean = 63.51 % Relative Standard Deviation = 8.6 Number of Observations = 18 Blind Sample ID = M224 Mean = 89.78 % Relative Standard Deviation = 6.7 Number of Observations = 20 Blind Sample ID = M222 Mean = 125.97 % Relative Standard Deviation = 6.5 Number of Observations = 17 Blind Sample ID = M220 Mean = 475.27 % Relative Standard Deviation = 4.7 Number of Observations = 23 Blind Sample ID = M218 Mean = 95.10 % Relative Standard Deviation = 7.6 Number of Observations = 16 Blind Sample ID = M216 Mean = 216.19 % Relative Standard Deviation = 3.5 Number of Observations = 24 Blind Sample ID = M214 Mean = 58.18 % Relative Standard Deviation = 10.2 Number of Observations = 20 Blind Sample ID = M212 Mean = 72.38 % Relative Standard Deviation = 6.4 Number of Observations = 23 Blind Sample ID = M210 Mean = 248.16 % Relative Standard Deviation = 4.4 Number of Observations = 14 Blind Sample ID = M208 Mean = 130.39 % Relative Standard Deviation = 3.0 Number of Observations = 8 Blind Sample ID = M206 Mean = 146.80 % Relative Standard Deviation = 4.5 Number of Observations = 8 Blind Sample ID = M204 Mean = 50.06 % Relative Standard Deviation = 10.1 Number of Observations = 8 Blind Sample ID = M202 Mean = 101.96 % Relative Standard Deviation = 5.7 Number of Observations = 16 Blind Sample ID = 75206-25DIW Mean = 109.70 % Relative Standard Deviation = 2.3 Number of Observations = 8 Blind Sample ID = 75204-25DIW Mean = 35.59 % Relative Standard Deviation = 15.4 Number of Observations = 18 Blind Sample ID = 75202-25DIW Mean = 65.56 % Relative Standard Deviation = 5.4 Number of Observations = 10 Blind Sample ID = 75200-25DIW Mean = 62.88 % Relative Standard Deviation = 7.8 Number of Observations = 20 Blind Sample ID = 75198-25DIW Mean = 147.48 % Relative Standard Deviation = 4.1 Number of Observations = 16 Blind Sample ID = 75196-25DIW Mean = 137.94 % Relative Standard Deviation = 5.6 Number of Observations = 36 Blind Sample ID = 75194-25DIW Mean = 46.42 % Relative Standard Deviation = 17.4 Number of Observations = 38 Blind Sample ID = 75192-25DIW Mean = 95.11 % Relative Standard Deviation = 9.6 Number of Observations = 31 Blind Sample ID = 75190-25DIW Mean = 109.34 % Relative Standard Deviation = 6.3 Number of Observations = 23 Blind Sample ID = 75190-25192 Mean = 144.45 % Relative Standard Deviation = 7.0 Number of Observations = 40 Blind Sample ID = 75188-25DIW Mean = 173.46 % Relative Standard Deviation = 5.3 Number of Observations = 21 Blind Sample ID = 75188-25190 Mean = 99.71 % Relative Standard Deviation = 11.3 Number of Observations = 24 Blind Sample ID = 75186-25DIW Mean = 79.47 % Relative Standard Deviation = 6.5 Number of Observations = 45 Blind Sample ID = 75184-25DIW Mean = 125.64 % Relative Standard Deviation = 7.0 Number of Observations = 21 Blind Sample ID = 75184-25188 Mean = 74.54 % Relative Standard Deviation = 11.4 Number of Observations = 24 Blind Sample ID = 75182-25DIW Mean = 131.61 % Relative Standard Deviation = 5.5 Number of Observations = 48 Blind Sample ID = 75180-25DIW Mean = 308.39 % Relative Standard Deviation = 3.7 Number of Observations = 24 Blind Sample ID = 75178-25DIW Mean = 70.89 % Relative Standard Deviation = 9.0 Number of Observations = 47 Blind Sample ID = 75176-25DIW Mean = 107.81 % Relative Standard Deviation = 10.6 Number of Observations = 23 Blind Sample ID = 75174-25DIW Mean = 72.66 % Relative Standard Deviation = 13.0 Number of Observations = 24 Blind Sample ID = 75172-25DIW Mean = 93.25 % Relative Standard Deviation = 8.0 Number of Observations = 21 Blind Sample ID = 75172-25176 Mean = 137.86 % Relative Standard Deviation = 3.1 Number of Observations = 8 Blind Sample ID = 25206-75204 Mean = 75.33 % Relative Standard Deviation = 8.3 Number of Observations = 8 Blind Sample ID = 25204-75202 Mean = 114.20 % Relative Standard Deviation = 7.4 Number of Observations = 8 Blind Sample ID = 25202-75206 Mean = 74.07 % Relative Standard Deviation = 5.9 Number of Observations = 12 Blind Sample ID = 25202-75198 Mean = 59.37 % Relative Standard Deviation = 11.1 Number of Observations = 12 Blind Sample ID = 25200-75202 Mean = 89.04 % Relative Standard Deviation = 4.5 Number of Observations = 12 Blind Sample ID = 25198-75200 Mean = 158.48 % Relative Standard Deviation = 5.4 Number of Observations = 12 Blind Sample ID = 25198-75194 Mean = 111.43 % Relative Standard Deviation = 11.0 Number of Observations = 12 Blind Sample ID = 25196-75198 Mean = 191.57 % Relative Standard Deviation = 3.3 Number of Observations = 12 Blind Sample ID = 25194-75196 Mean = 91.57 % Relative Standard Deviation = 5.2 Number of Observations = 16 Blind Sample ID = 25194-75192 Mean = 110.14 % Relative Standard Deviation = 4.9 Number of Observations = 16 Blind Sample ID = 25192-75190 Mean = 168.72 % Relative Standard Deviation = 4.7 Number of Observations = 16 Blind Sample ID = 25190-75194 Mean = 93.65 % Relative Standard Deviation = 6.6 Number of Observations = 21 Blind Sample ID = 25188-75192 Mean = 177.70 % Relative Standard Deviation = 3.9 Number of Observations = 23 Blind Sample ID = 25186-75188 Mean = 123.15 % Relative Standard Deviation = 6.6 Number of Observations = 24 Blind Sample ID = 25184-75186 Mean = 102.25 % Relative Standard Deviation = 7.6 Number of Observations = 24 Blind Sample ID = 25184-75182 Mean = 154.82 % Relative Standard Deviation = 4.1 Number of Observations = 24 Blind Sample ID = 25182-75180 Mean = 120.77 % Relative Standard Deviation = 4.9 Number of Observations = 23 Blind Sample ID = 25180-75184 Mean = 349.54 % Relative Standard Deviation = 1.6 Number of Observations = 24 Blind Sample ID = 25180-75178 Mean = 111.45 % Relative Standard Deviation = 5.3 Number of Observations = 23 Blind Sample ID = 25180-75176 Mean = 171.12 % Relative Standard Deviation = 3.1 Number of Observations = 23 Blind Sample ID = 25178-75176 Mean = 100.50 % Relative Standard Deviation = 8.1 Number of Observations = 22 Blind Sample ID = 25174-75176 Mean = 131.30 % Relative Standard Deviation = 9.0 Number of Observations = 22 Blind Sample ID = 25172-75174
The SGPlot Procedure


- Specific Cond, LAB, UNF -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 90095, MCode: WHT03
Dates: 10/03/06 through 09/27/21
Open Data Set

Mean = 22.12 % Relative Standard Deviation = 0.9 Number of Observations = 8 Blind Sample ID = P71 Mean = 49.87 % Relative Standard Deviation = 2.4 Number of Observations = 8 Blind Sample ID = P70 Mean = 48.72 % Relative Standard Deviation = 6.8 Number of Observations = 15 Blind Sample ID = P69 Mean = 27.01 % Relative Standard Deviation = 0.8 Number of Observations = 8 Blind Sample ID = P68 Mean = 24.53 % Relative Standard Deviation = 5.5 Number of Observations = 16 Blind Sample ID = P67 Mean = 47.72 % Relative Standard Deviation = 1.1 Number of Observations = 7 Blind Sample ID = P66 Mean = 18.03 % Relative Standard Deviation = 1.5 Number of Observations = 14 Blind Sample ID = P65 Mean = 50.41 % Relative Standard Deviation = 0.7 Number of Observations = 8 Blind Sample ID = P64 Mean = 46.00 % Relative Standard Deviation = 2.1 Number of Observations = 16 Blind Sample ID = P63 Mean = 27.80 % Relative Standard Deviation = 0.8 Number of Observations = 8 Blind Sample ID = P62 Mean = 71.81 % Relative Standard Deviation = 1.8 Number of Observations = 16 Blind Sample ID = P61 Mean = 29.10 % Relative Standard Deviation = 0.7 Number of Observations = 8 Blind Sample ID = P60 Mean = 39.96 % Relative Standard Deviation = 1.4 Number of Observations = 16 Blind Sample ID = P59 Mean = 28.66 % Relative Standard Deviation = 4.7 Number of Observations = 8 Blind Sample ID = P58 Mean = 13.64 % Relative Standard Deviation = 12.7 Number of Observations = 14 Blind Sample ID = P57 Mean = 36.52 % Relative Standard Deviation = 0.5 Number of Observations = 5 Blind Sample ID = P56 Mean = 16.11 % Relative Standard Deviation = 3.1 Number of Observations = 3 Blind Sample ID = P55 Mean = 430.77 % Relative Standard Deviation = 0.6 Number of Observations = 6 Blind Sample ID = M232 Mean = 262.20 % Relative Standard Deviation = 4.1 Number of Observations = 8 Blind Sample ID = M230 Mean = 170.87 % Relative Standard Deviation = 0.4 Number of Observations = 12 Blind Sample ID = M228 Mean = 220.63 % Relative Standard Deviation = 0.5 Number of Observations = 16 Blind Sample ID = M226 Mean = 99.80 % Relative Standard Deviation = 1.4 Number of Observations = 18 Blind Sample ID = M224 Mean = 160.76 % Relative Standard Deviation = 0.6 Number of Observations = 22 Blind Sample ID = M222 Mean = 213.56 % Relative Standard Deviation = 0.7 Number of Observations = 17 Blind Sample ID = M220 Mean = 715.55 % Relative Standard Deviation = 0.5 Number of Observations = 24 Blind Sample ID = M218 Mean = 152.47 % Relative Standard Deviation = 0.7 Number of Observations = 16 Blind Sample ID = M216 Mean = 361.25 % Relative Standard Deviation = 1.2 Number of Observations = 24 Blind Sample ID = M214 Mean = 92.10 % Relative Standard Deviation = 1.1 Number of Observations = 20 Blind Sample ID = M212 Mean = 119.91 % Relative Standard Deviation = 0.8 Number of Observations = 24 Blind Sample ID = M210 Mean = 428.87 % Relative Standard Deviation = 1.4 Number of Observations = 14 Blind Sample ID = M208 Mean = 226.77 % Relative Standard Deviation = 0.3 Number of Observations = 8 Blind Sample ID = M206 Mean = 251.80 % Relative Standard Deviation = 0.6 Number of Observations = 8 Blind Sample ID = M204 Mean = 85.88 % Relative Standard Deviation = 0.9 Number of Observations = 8 Blind Sample ID = M202 Mean = 172.53 % Relative Standard Deviation = 1.3 Number of Observations = 16 Blind Sample ID = 75206-25DIW Mean = 190.01 % Relative Standard Deviation = 1.1 Number of Observations = 7 Blind Sample ID = 75204-25DIW Mean = 65.79 % Relative Standard Deviation = 4.6 Number of Observations = 18 Blind Sample ID = 75202-25DIW Mean = 114.44 % Relative Standard Deviation = 3.6 Number of Observations = 13 Blind Sample ID = 75200-25DIW Mean = 110.40 % Relative Standard Deviation = 1.4 Number of Observations = 29 Blind Sample ID = 75198-25DIW Mean = 258.50 % Relative Standard Deviation = 1.8 Number of Observations = 24 Blind Sample ID = 75196-25DIW Mean = 236.96 % Relative Standard Deviation = 1.7 Number of Observations = 48 Blind Sample ID = 75194-25DIW Mean = 77.11 % Relative Standard Deviation = 2.5 Number of Observations = 48 Blind Sample ID = 75192-25DIW Mean = 160.53 % Relative Standard Deviation = 1.4 Number of Observations = 40 Blind Sample ID = 75190-25DIW Mean = 184.70 % Relative Standard Deviation = 1.6 Number of Observations = 24 Blind Sample ID = 75190-25192 Mean = 254.06 % Relative Standard Deviation = 1.8 Number of Observations = 44 Blind Sample ID = 75188-25DIW Mean = 302.41 % Relative Standard Deviation = 0.9 Number of Observations = 22 Blind Sample ID = 75188-25190 Mean = 166.96 % Relative Standard Deviation = 1.5 Number of Observations = 24 Blind Sample ID = 75186-25DIW Mean = 131.48 % Relative Standard Deviation = 2.9 Number of Observations = 47 Blind Sample ID = 75184-25DIW Mean = 212.55 % Relative Standard Deviation = 1.5 Number of Observations = 24 Blind Sample ID = 75184-25188 Mean = 130.66 % Relative Standard Deviation = 1.2 Number of Observations = 24 Blind Sample ID = 75182-25DIW Mean = 235.25 % Relative Standard Deviation = 1.9 Number of Observations = 48 Blind Sample ID = 75180-25DIW Mean = 490.30 % Relative Standard Deviation = 0.6 Number of Observations = 24 Blind Sample ID = 75178-25DIW Mean = 121.22 % Relative Standard Deviation = 2.5 Number of Observations = 46 Blind Sample ID = 75176-25DIW Mean = 192.16 % Relative Standard Deviation = 3.6 Number of Observations = 24 Blind Sample ID = 75174-25DIW Mean = 120.96 % Relative Standard Deviation = 2.7 Number of Observations = 24 Blind Sample ID = 75172-25DIW Mean = 159.95 % Relative Standard Deviation = 1.2 Number of Observations = 21 Blind Sample ID = 75172-25176 Mean = 247.60 % Relative Standard Deviation = 1.1 Number of Observations = 8 Blind Sample ID = 25206-75204 Mean = 129.85 % Relative Standard Deviation = 1.9 Number of Observations = 8 Blind Sample ID = 25204-75202 Mean = 194.03 % Relative Standard Deviation = 1.8 Number of Observations = 8 Blind Sample ID = 25202-75206 Mean = 128.28 % Relative Standard Deviation = 1.4 Number of Observations = 12 Blind Sample ID = 25202-75198 Mean = 100.19 % Relative Standard Deviation = 2.7 Number of Observations = 12 Blind Sample ID = 25200-75202 Mean = 148.94 % Relative Standard Deviation = 2.5 Number of Observations = 12 Blind Sample ID = 25198-75200 Mean = 272.47 % Relative Standard Deviation = 1.1 Number of Observations = 20 Blind Sample ID = 25198-75194 Mean = 195.64 % Relative Standard Deviation = 0.9 Number of Observations = 20 Blind Sample ID = 25196-75198 Mean = 330.65 % Relative Standard Deviation = 1.0 Number of Observations = 20 Blind Sample ID = 25194-75196 Mean = 155.49 % Relative Standard Deviation = 0.9 Number of Observations = 24 Blind Sample ID = 25194-75192 Mean = 184.13 % Relative Standard Deviation = 1.6 Number of Observations = 24 Blind Sample ID = 25192-75190 Mean = 288.03 % Relative Standard Deviation = 1.0 Number of Observations = 24 Blind Sample ID = 25190-75194 Mean = 162.71 % Relative Standard Deviation = 1.1 Number of Observations = 24 Blind Sample ID = 25188-75192 Mean = 306.98 % Relative Standard Deviation = 1.3 Number of Observations = 24 Blind Sample ID = 25186-75188 Mean = 209.82 % Relative Standard Deviation = 2.5 Number of Observations = 24 Blind Sample ID = 25184-75186 Mean = 172.30 % Relative Standard Deviation = 1.4 Number of Observations = 24 Blind Sample ID = 25184-75182 Mean = 278.42 % Relative Standard Deviation = 1.3 Number of Observations = 24 Blind Sample ID = 25182-75180 Mean = 209.67 % Relative Standard Deviation = 1.0 Number of Observations = 24 Blind Sample ID = 25180-75184 Mean = 560.58 % Relative Standard Deviation = 0.6 Number of Observations = 24 Blind Sample ID = 25180-75178 Mean = 197.61 % Relative Standard Deviation = 0.9 Number of Observations = 23 Blind Sample ID = 25180-75176 Mean = 287.37 % Relative Standard Deviation = 0.7 Number of Observations = 23 Blind Sample ID = 25178-75176 Mean = 183.44 % Relative Standard Deviation = 1.5 Number of Observations = 21 Blind Sample ID = 25174-75176 Mean = 231.30 % Relative Standard Deviation = 1.2 Number of Observations = 22 Blind Sample ID = 25172-75174
The SGPlot Procedure


- Sulfate, FIL, IC -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00945, MCode: IC022
Dates: 10/05/06 through 09/29/21
Open Data Set

Mean = 0.18 % Relative Standard Deviation = 3.2 Number of Observations = 8 Blind Sample ID = P71 Mean = 0.58 % Relative Standard Deviation = 5.4 Number of Observations = 6 Blind Sample ID = P70 Mean = 0.24 % Relative Standard Deviation = 5.3 Number of Observations = 16 Blind Sample ID = P69 Mean = 0.44 % Relative Standard Deviation = 1.4 Number of Observations = 8 Blind Sample ID = P68 Mean = 0.20 % Relative Standard Deviation = 8.4 Number of Observations = 16 Blind Sample ID = P67 Mean = 0.87 % Relative Standard Deviation = 1.5 Number of Observations = 7 Blind Sample ID = P66 Mean = 0.23 % Relative Standard Deviation = 5.2 Number of Observations = 14 Blind Sample ID = P65 Mean = 0.55 % Relative Standard Deviation = 2.8 Number of Observations = 8 Blind Sample ID = P64 Mean = 0.36 % Relative Standard Deviation = 2.9 Number of Observations = 16 Blind Sample ID = P63 Mean = 1.75 % Relative Standard Deviation = 0.7 Number of Observations = 8 Blind Sample ID = P62 Mean = 0.50 % Relative Standard Deviation = 3.7 Number of Observations = 16 Blind Sample ID = P61 Mean = 0.51 % Relative Standard Deviation = 3.8 Number of Observations = 8 Blind Sample ID = P60 Mean = 0.52 % Relative Standard Deviation = 3.2 Number of Observations = 16 Blind Sample ID = P59 Mean = 1.67 % Relative Standard Deviation = 1.9 Number of Observations = 8 Blind Sample ID = P58 Mean = 0.21 % Relative Standard Deviation = 5.6 Number of Observations = 16 Blind Sample ID = P57 Mean = 0.92 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = P56 Mean = 0.67 % Relative Standard Deviation = 2.1 Number of Observations = 6 Blind Sample ID = P55 Mean = 73.28 % Relative Standard Deviation = 2.1 Number of Observations = 6 Blind Sample ID = M232 Mean = 10.96 % Relative Standard Deviation = 1.0 Number of Observations = 8 Blind Sample ID = M230 Mean = 26.52 % Relative Standard Deviation = 1.6 Number of Observations = 12 Blind Sample ID = M228 Mean = 13.95 % Relative Standard Deviation = 1.1 Number of Observations = 15 Blind Sample ID = M226 Mean = 5.42 % Relative Standard Deviation = 1.4 Number of Observations = 18 Blind Sample ID = M224 Mean = 9.54 % Relative Standard Deviation = 1.0 Number of Observations = 21 Blind Sample ID = M222 Mean = 21.56 % Relative Standard Deviation = 1.2 Number of Observations = 17 Blind Sample ID = M220 Mean = 211.69 % Relative Standard Deviation = 1.3 Number of Observations = 23 Blind Sample ID = M218 Mean = 8.25 % Relative Standard Deviation = 1.6 Number of Observations = 16 Blind Sample ID = M216 Mean = 78.71 % Relative Standard Deviation = 1.2 Number of Observations = 24 Blind Sample ID = M214 Mean = 5.46 % Relative Standard Deviation = 0.8 Number of Observations = 19 Blind Sample ID = M212 Mean = 8.35 % Relative Standard Deviation = 0.8 Number of Observations = 24 Blind Sample ID = M210 Mean = 33.50 % Relative Standard Deviation = 0.6 Number of Observations = 14 Blind Sample ID = M208 Mean = 32.30 % Relative Standard Deviation = 0.7 Number of Observations = 8 Blind Sample ID = M206 Mean = 7.65 % Relative Standard Deviation = 1.1 Number of Observations = 8 Blind Sample ID = M204 Mean = 4.15 % Relative Standard Deviation = 1.5 Number of Observations = 8 Blind Sample ID = M202 Mean = 24.40 % Relative Standard Deviation = 1.0 Number of Observations = 16 Blind Sample ID = 75206-25DIW Mean = 5.68 % Relative Standard Deviation = 1.7 Number of Observations = 8 Blind Sample ID = 75204-25DIW Mean = 3.08 % Relative Standard Deviation = 2.1 Number of Observations = 18 Blind Sample ID = 75202-25DIW Mean = 8.48 % Relative Standard Deviation = 2.6 Number of Observations = 13 Blind Sample ID = 75200-25DIW Mean = 7.39 % Relative Standard Deviation = 3.2 Number of Observations = 29 Blind Sample ID = 75198-25DIW Mean = 24.91 % Relative Standard Deviation = 2.4 Number of Observations = 24 Blind Sample ID = 75196-25DIW Mean = 11.72 % Relative Standard Deviation = 2.2 Number of Observations = 52 Blind Sample ID = 75194-25DIW Mean = 3.46 % Relative Standard Deviation = 4.2 Number of Observations = 48 Blind Sample ID = 75192-25DIW Mean = 5.64 % Relative Standard Deviation = 2.2 Number of Observations = 40 Blind Sample ID = 75190-25DIW Mean = 6.63 % Relative Standard Deviation = 5.0 Number of Observations = 24 Blind Sample ID = 75190-25192 Mean = 24.02 % Relative Standard Deviation = 2.2 Number of Observations = 43 Blind Sample ID = 75188-25DIW Mean = 25.44 % Relative Standard Deviation = 2.6 Number of Observations = 22 Blind Sample ID = 75188-25190 Mean = 11.07 % Relative Standard Deviation = 2.7 Number of Observations = 22 Blind Sample ID = 75186-25DIW Mean = 15.57 % Relative Standard Deviation = 6.0 Number of Observations = 43 Blind Sample ID = 75184-25DIW Mean = 22.84 % Relative Standard Deviation = 1.7 Number of Observations = 24 Blind Sample ID = 75184-25188 Mean = 7.74 % Relative Standard Deviation = 1.7 Number of Observations = 24 Blind Sample ID = 75182-25DIW Mean = 28.25 % Relative Standard Deviation = 1.3 Number of Observations = 48 Blind Sample ID = 75180-25DIW Mean = 132.71 % Relative Standard Deviation = 0.8 Number of Observations = 24 Blind Sample ID = 75178-25DIW Mean = 13.55 % Relative Standard Deviation = 3.2 Number of Observations = 47 Blind Sample ID = 75176-25DIW Mean = 5.78 % Relative Standard Deviation = 1.9 Number of Observations = 23 Blind Sample ID = 75174-25DIW Mean = 9.03 % Relative Standard Deviation = 3.8 Number of Observations = 24 Blind Sample ID = 75172-25DIW Mean = 13.84 % Relative Standard Deviation = 2.9 Number of Observations = 21 Blind Sample ID = 75172-25176 Mean = 13.83 % Relative Standard Deviation = 1.9 Number of Observations = 8 Blind Sample ID = 25206-75204 Mean = 4.97 % Relative Standard Deviation = 2.5 Number of Observations = 8 Blind Sample ID = 25204-75202 Mean = 25.71 % Relative Standard Deviation = 3.0 Number of Observations = 8 Blind Sample ID = 25202-75206 Mean = 8.44 % Relative Standard Deviation = 2.7 Number of Observations = 12 Blind Sample ID = 25202-75198 Mean = 5.97 % Relative Standard Deviation = 1.5 Number of Observations = 12 Blind Sample ID = 25200-75202 Mean = 11.14 % Relative Standard Deviation = 1.9 Number of Observations = 12 Blind Sample ID = 25198-75200 Mean = 14.26 % Relative Standard Deviation = 2.7 Number of Observations = 20 Blind Sample ID = 25198-75194 Mean = 15.92 % Relative Standard Deviation = 2.2 Number of Observations = 19 Blind Sample ID = 25196-75198 Mean = 28.79 % Relative Standard Deviation = 2.4 Number of Observations = 20 Blind Sample ID = 25194-75196 Mean = 7.31 % Relative Standard Deviation = 4.2 Number of Observations = 24 Blind Sample ID = 25194-75192 Mean = 6.73 % Relative Standard Deviation = 3.4 Number of Observations = 24 Blind Sample ID = 25192-75190 Mean = 13.67 % Relative Standard Deviation = 2.1 Number of Observations = 24 Blind Sample ID = 25190-75194 Mean = 11.58 % Relative Standard Deviation = 3.0 Number of Observations = 24 Blind Sample ID = 25188-75192 Mean = 27.19 % Relative Standard Deviation = 1.7 Number of Observations = 24 Blind Sample ID = 25186-75188 Mean = 16.91 % Relative Standard Deviation = 5.2 Number of Observations = 23 Blind Sample ID = 25184-75186 Mean = 12.80 % Relative Standard Deviation = 1.6 Number of Observations = 24 Blind Sample ID = 25184-75182 Mean = 31.07 % Relative Standard Deviation = 1.1 Number of Observations = 24 Blind Sample ID = 25182-75180 Mean = 24.87 % Relative Standard Deviation = 1.7 Number of Observations = 22 Blind Sample ID = 25180-75184 Mean = 142.63 % Relative Standard Deviation = 0.7 Number of Observations = 24 Blind Sample ID = 25180-75178 Mean = 23.66 % Relative Standard Deviation = 1.3 Number of Observations = 23 Blind Sample ID = 25180-75176 Mean = 56.08 % Relative Standard Deviation = 0.9 Number of Observations = 23 Blind Sample ID = 25178-75176 Mean = 15.32 % Relative Standard Deviation = 1.3 Number of Observations = 22 Blind Sample ID = 25174-75176 Mean = 8.71 % Relative Standard Deviation = 3.0 Number of Observations = 22 Blind Sample ID = 25172-75174
The SGPlot Procedure


- Sulfate, FIL, IC, LL -
Percent Relative Standard Deviation
Lab: NWQL, PCode: 00945, MCode: IC024
Dates: 11/03/06 through 11/01/13
Open Data Set

Mean = 0.66 % Relative Standard Deviation = 2.5 Number of Observations = 8 Blind Sample ID = P55 Mean = 0.26 % Relative Standard Deviation = 4.8 Number of Observations = 8 Blind Sample ID = P54 Mean = 0.42 % Relative Standard Deviation = 2.4 Number of Observations = 16 Blind Sample ID = P53 Mean = 0.19 % Relative Standard Deviation = 3.2 Number of Observations = 8 Blind Sample ID = P52 Mean = 1.99 % Relative Standard Deviation = 2.9 Number of Observations = 24 Blind Sample ID = P51 Mean = 0.83 % Relative Standard Deviation = 5.8 Number of Observations = 32 Blind Sample ID = P50 Mean = 0.60 % Relative Standard Deviation = 8.1 Number of Observations = 31 Blind Sample ID = P49 Mean = 0.26 % Relative Standard Deviation = 6.1 Number of Observations = 30 Blind Sample ID = P48 Mean = 0.18 % Relative Standard Deviation = 6.7 Number of Observations = 14 Blind Sample ID = P47 Mean = 0.49 % Relative Standard Deviation = 3.4 Number of Observations = 26 Blind Sample ID = P46 Mean = 0.24 % Relative Standard Deviation = 5.6 Number of Observations = 31 Blind Sample ID = P45 Mean = 1.17 % Relative Standard Deviation = 2.7 Number of Observations = 28 Blind Sample ID = P44 Mean = 0.42 % Relative Standard Deviation = 2.3 Number of Observations = 17 Blind Sample ID = P43
The SGPlot Procedure