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AMERICAN SODA INTERIM STATUS <br />DATA SUMMARY GROUND WATER WELL 20-9 <br />JULY 1, 1999 - DECEMBER 31, 2010 <br />Well ID 20-9 20-9 20-9 Numeric Earl Regulatory <br />Sample Date 6/22/2010 9/15/2010 12/13/2010 Protection Warning Standard BASELINE DESCRIPTIVE STATISTICS OPERATIONAL DESCRIPTIVE STATISTICS <br />Sample Type* Prima Prima Prima Level Indicator Regulation Standard JULY 1, 1999 - SEPTEMBER 30, 2000 OCTOBER 1, 2000 - SEPTEMBER 30, 2010 <br />Completion Horizon B Groove B Groove B Groove NPL EWI Number4l Classification <br /> <br />Parameter <br />(mg/l)'• TOTAL <br />AMPLES 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 1.45 1.42 1.41 None 2.08 0.75 Agricultural 15 0 1.74 1.43 1.567 0.077 76 0 1.73 0.74 1.47 0.122 <br />Calcium, dissolved 12 12 10 None None None None 15 0 11 10 10.4 0.5 76 0 12 " 7.3 - 9.4 <br />' <br />1.0 <br />Iron, dissolved 0.4 0.1 0.3 None None 0.3 Ddnkin W Secondaryater 15 0 0.69 0.06 0.216 0.178 76 10 0.57 0.025 0.170 0.130 <br />Lithium, dissolved 0.5 0.6 0.7 None 2.5 2.5 Agricultural 15 0 0.62 - 0.5 0.593 0.027 76 0- 0.7 0.5 - 0.591 0.048 <br />Magnesium, dissolved 4 4 4 None None None None 15 0 6 4 4.9 0.5 76 0 6 2 4.0 0.5 <br />Potassium, dissolved 5 6 5 None 9.26 None None 15 0.. 6.5 ' 4 5.3 0.6 76 0 7 3.7 4.8 0.7 <br />Silica, dissolved 18 20 18 None 21.98 None None 15 0 19 16.3 17.5 0.8 76 0 23 16 18.8 1.4 <br />Sodium, dissolved 2110 2080 2140 None 2947 None None 15 0 2550 21.90 2326.7 112.7 76 0 2590 1940 2231 136 <br />Bicarb as CoC03 4490 4380 4580 None None None None 15 0 5100 4160 4742 283 76 0 5530 3680 4657 344 <br />Carbonate as CaC03 <2 <2 <2 None None None None 15. 13 536. 1 66 142 76 53 298 1 37 66 <br />Hydroxide as CaC03 <2 <2 <2 None None None None 15 15 100 1 23 40 76 76 1 1 1 0 <br />Total Alkalinity 4490 4380 4580 None 6138 None None 15 0 5100 4160 4792 283 76 0. 5530 3680 4692 341 <br />Cation-Anion Balance v -3.4 -2.2 -3.5 15 11 5.4 -8.8 -2.1 4.2 76 61 7.8 -17.8 -2.5 3.2 <br />Sum of Anions meq/L 101 96.7 102 15 0 124 93.1 108.07 6.65 76 0 142'. 82.9 104.45 8.76 <br />Sum of Cations meq/L 94 92.6 95.1 15 0 113 97.4 103.52 4.86 76 0 115 86.3 99.18 5.99 <br />Chloride 330 280 320 None None 250 Secondary <br />Ddnkin 15 0 - ..390. 270. .321. 35 ..76 0 -430 29 306 63 <br />Cond @ 25C(umhos/cm) 8100 7720 7540 None 10057 None None 15 0 8820 7700 8298 362 76 0 9150 3410 7751 782 <br />Fluoride 24.9 24.4 24.8 None 45.72 2 Agricultural 15 0 ' 34 23.4 27.0 2.7 76 0.. 48. 16.5` 26.2 36 <br /> <br />pH (units <br /> <br />8.6 <br /> <br />8.6 <br /> <br />8.3 <br /> <br />None <br /> <br />None <br /> <br />6.5-8.5 Secondary <br />Ddnkin <br /> <br /> <br />5 <br /> <br />0 <br /> <br /> <br />.6 <br /> <br /> <br />.7 <br /> <br /> <br />.0 <br /> <br /> <br />.3 <br /> <br /> <br />6 <br /> <br />0 <br /> <br /> <br />.9 <br /> <br /> <br />.6 <br /> <br /> <br />.3 <br /> <br /> <br />.2 <br /> <br />Total Dissolved Solids <br />5490 <br />5370 <br />5450 <br />None <br />6793 <br />7125 TDS <br />Water al. <br />15 <br />0 <br />6020 <br />-5320 <br />-:5700 <br />212 <br />76. <br />0 <br />6170 <br />5030 <br />5488 <br />267 <br />Sulfate <1 <10 <1 None None 250 Secondary <br />Ddnkin 15 14 800 5 64 204 76 66 220 0.5 11 30 <br />TDS(calc) 5200 5050 5270 15 0 6450 5180 5681 278 76 0 6770 4730 5456 379 <br />TDS ratio 1.06 1.06 1.03 15 0 1.13 0.87 1.01 0.06 76 0 1.1 0.82 1.008 0.04 <br />Temperature 15.9 13.2 10.7 15 0 15 9.2 12.5 1.6 75 0 18.3 7.3 12.7 2.6 <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 V 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.