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AMERICAN SODA INTERIM STATUS <br />DATA SUMMARY GROUND WATER WELL 20-4B <br />JULY 1, 1999 - MARCH 31, 2010 <br />Well ID 20-46 20-46 204B Numeric <br />Sample Date 9123/09 12/16/09 3/29/10 Protection BASELINE DESCRIPTIVE STATISTICS OPERATIONAL DESCRIPTIVE STATISTICS <br />Sample T pe* Prima Prima Prima Level 01 g Standard JULY 1, 1999 - SEPTEMBER 30, 2000 OCTOBER 1, 2000 - DECEMBER 31, 2009 <br />Com letion Horizon B Groove B Groove B Groove NPL Numbe Classification <br /> <br />Parameter (mg/l'- TOTAL <br />SAMPLES BELOW <br />DETECTION MAXIMUM <br />VALUE MINIMUM <br />VALUE MEAN <br />VALUE STANDARD <br />DEVIATION TOTAL <br />SAMPLES BELOW <br />DETECTION MAXIMUM <br />VALUE MINIMUM <br />VALUE MEAN <br />VALUE STANDARD <br />DEVIATION <br />Boron, dissolved 0.33 0.32 0.32 None 0.75 0.75 Agricultural 14 0 0.96 0.32 0.400 0.164 73 0 0.38 0.29 0.33 0.019 <br />Calcium, dissolved 4.8 4.3 4.7 None None None None 14 0 15.2 4.8 7.5 3.0 73 0 5.5 4.25 4.7 0.3 <br />Iron, dissolved 0.03 0.03 0.06 None None 0.3 Drinkingsecondary Water 14 0 1.45 0.03 0.255 0.456 73 4 0.1 -0.02 0.043 0.022 <br />Lithium, dissolved 0.05 0.04 0.05 None 2.5 2.5 Agricultural 14 1 0.35 0.02 0.064 0.083 73 1 0.6 0.02 0.059 ` 0.065 <br />Magnesium, dissolved 2.8 2.4 2.8 None None None None 14 0 6.4 2.8 3.9 1.2 73 0 3.1 2.1 2.7 0.2 <br />Potassium, dissolved 1.4 1.3 1 None 5.51 None None 14 0 3.1 1.1 1.6 0.6 73 0 2.5 - 0.8. 1.1 X0.2 <br />Silica, dissolved 13.9 13.5 14 None 33.95 None None 14 0 32.3 13.7 17.0 5.0 73 0 17 13.5 15.0 0.7 <br />Sodium, dissolved 488 497 459 None 844 None None 14 0 1530 529 666.3 251.9 73 0 631 477.5 542 31 <br />Bicarb as CaC03 1070 1050 1040 None None None None 14 0 3120 1060 1364 517 73 0 1240 629 1062 94 <br />Carbonate as CoC03 142 111 122 None None None None 14 10 148 1 36 51 73 6 419 1 75 60 <br />Hydroxide as CaC03 <2 <2 <2 None None None None 14 14 10 1 6 5 73 73 1 -2 1 0 <br />Total Alkalinity 1210 1160 1160 None 1807 None None 14 0 3120 1160 1396 503 73 0 1260 862 1136 79 <br />Cation-Anion Balance % -7 -4.3 -8.2 14 5 4.3 -12.8 0.0 4.0 73 35 18.7 -25.1 0.7 5.8 <br />Sum of Anions meq/L 25.3 24.3 24.4 14 0 67.6 24.3 30.17 11.02 73 0 42.9 18.3 24.13 2.73 <br />Sum of Cations meq/L 22 22.3 20.7 14 0 68.2 24.9 30.14 11.10 73 0 28.3 21.5 24.38 1.39 <br />Chloride 13 14 14 None None 250 Secondary <br />Drinking 14 0 140 15 38 44 73 0. 15 10 13 1 <br />Cond @ 25C(umhos/cm) 1970 2050 2060 None 3178 None None 14 0 5360 2135 2496 838 73 0 2310 8 1993 262 <br />Fluoride 13.5 13.7 14 None 35.61 2 Agricultural 14 0 24 13.5 16.1 2.7 73 0 29 2.5. 14.6 2.5 <br />pH (units) 8.9 8.8 8.8 None None 6.5-8.5 Secondary <br />Dnnkin 14 0 9.2 7.7 8.2 0.4 73 0 8.9 7.8 8.5 0.2 <br /> <br />Total Dissolved Solids <br />1300 <br />1300 <br />1260 <br />None <br />1955 <br />2018 TDS Water <br />Quality <br />Standard, <br />14 <br />0 <br />3730 <br />1340 <br />1614 <br />615 <br />0 <br />1400- <br />890 <br />1303 <br />56 <br />Sulfate <1 <1 <t None None 250 Secondary <br />Dnnkin 14 6 40 5 17 13 73 69 20 -1 5 3 <br />TDS(calc) 1320 1290 1260 14 0 3600 1340 1616 579 [ 0 2020 1160 1317 102 <br />TDS ratio 0.98 1.01 1 14 0 1.05 0.95 1.00 003 0 1.13 0.64 0.995 0.08 <br />Temperature 15.8 14 0 19.7 9.4 13.0 3.0 0 .20.9. 7.4 12.5 2.8 <br /> <br />Sample Type = Primary (one sample is represented), = Average (duplicate samples are averaged). " Constituents reported in mg/I unless otherwise noted. <br />A symbol "<" before a number indicates that the value is not detected. The number following "<" is the analytical limit of detection based upon the method and the sample matrix. <br />Analyte concentrations reported below the detection limit are set equal to one half the detection limit for all statistical calculations.