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AMERICAN SODA INTERIM STATUS <br />DATA SUMMARY GROUND WATER WELL 28-1 <br />JULY 1, 1999 - MARCH 31, 2011 <br />Well ID 28-1 28-1 28-1 Numeric Earl Regulatory <br />Sample Date 9/16/2010 12/15/2010 3/9/2011 Protection Warning Standard BASELINE DESCRIPTIVE STATISTICS OPERATIONAL DESCRIPTIVE STATISTICS <br />Sample T pe* Prima Prima Prima Level Indicator Regulation Standard JULY 1, 1999 - SEPTEMBER 30, 2000 OCTOBER 1, 2000 - DECEMBER 31, 2010 <br />Completion Horizon Alluvial Alluvial Alluvial NPL EWI Number 41 Classification <br /> <br /> <br /> <br />arameter m /I" TOTAL <br /> <br /> <br />SAMPLES BELOW <br /> <br /> <br />DETECTION MAXIMUM <br /> <br /> <br />VALUE MINIMUM <br /> <br /> <br />VALUE MEAN <br /> <br /> <br />VALUE STANDARD <br /> <br /> <br />DEVIATION TOTAL <br /> <br /> <br />SAMPLES <br />I <br /> <br />BELOW <br />DETECTION <br />I <br /> <br />MAXIMUM <br />VALUE <br /> <br />MINIMUM <br />VALUE <br /> <br />MEAN <br />VALUE <br /> <br />STANDARD <br />DEVIATION <br />Boron, dissolved 0.6 0.62 0.67 None 0.94 0.75 Agricultural 15 0 0.72 0.52 0.605 0.056 77 0 0.72 0.51 0.62 0.041 <br />Calcium, dissolved 99.1 96 90 None None None None 15 0 7Z5 52.7 68.4 Z2 77 0 991 51.9 .,,,.., - <br />Iron, dissolved <0.04 <0.1 <0.1 None None 0.3 secondary <br />Drinking Water 15 9 0.12 0.005 0.027 0.033 77 54 032 0.005 0.047 0.050 <br />Lithium, dissolved <0.04 <0.1 <0.1 None 2.5 2.5 Agricultural 15 15 0.05 0.02 0.026 0.012 77 66 0.1 0.02 0.044 0.013-. <br />Magnesium, dissolved 426 392 391 None None None None 15 0 340 224 282.6 32.3 77 0 426 200 342.6 38.8 <br />Potassium, dissolved 4.6 5 5 None 5.21 None None 15 0 4 2.9 3.5 0.4 -77 0 9 2 3.7 0.9 <br />Silica, dissolved 26.4 25 26 None 35.96 None None 15 0 28 20.8 24.6 2.2 77 0 29 21.2 263 <br />Sodium, dissolved 915 973 1010 None 1294 None None 15 0 - 961 659 8303 77.7 77 0 - 1.100 673 932. _ <br />Bicarb as CaC03 1050 1110 1030 None None None None 15 0 1130 985 1055 37 77 0 1550 865 1097 <br />Carbonate as CaC03 72 <2 38 None None None None 15. 15 10 1 5 5 77 70 93 1 6 - l,: <br />Hydroxide as CaC03 <2 <2 <2 None None None None 15 15 10 1 5 5 77 77 1 1 1 <br />Total Alkalinity 1120 1110 1070 None 1290 None None 15 0 1.130 985 - 1055 37 77 0. 1550 865 .1102 <br />Cation-Anion Balance % 0.6 0.6 4.6 15 12 22.9 -8.4 -1 2 Z1 77 54 13-8 -8.55 -1.2 <br />Sum of Anions meq/L 79.3 79 73.9 15 0 73.4 37.9 65.19 8.53 77 0. --6 <br />Sum of Cations meq/L 80.3 79.9 81.1 15 0 73.6 503 63.36 6.33 77 0 , ,,- <br />Chloride 80 78 74 None None 250 Secondary <br />Drinkin 1,5 0 83 53 73 8 : -77- 0 _I 4L 71 <br />Cond @ 25C(umhos/cm) 5850 5860 5660 None 7324 None None 15 0 5390 3640 4832 449 77 0 6500 4090 <br />Fluoride 0.6 0.6 0.7 None 2 2 Agricultural 14 0 0.9 01 0.8 - 008 77 - 0 1.2 04 _-.I - <br />pH (units) 8.4 8 8.3 None None 6.5-8.5 Secondary <br />Dankin 15 0 8.3 7.5 7.8 0.2 77 0 8.5 6.9 7.9 <br /> <br />Total Dissolved Solids <br />5070 <br />5110 <br />4700 <br />None <br />5407 <br />4948 TDS Water <br />Quality <br />15 <br />0 <br />4380 <br />3450 <br />3958 <br />248 <br />77 <br />+I _ <br />.-- <br />Sulfate 2600 2600 2400 None None 250 Secondary <br /> <br />Dankin <br />15 <br />0 <br />2350 <br />710 <br />2000 <br />393 <br />77 <br />2900 <br /> <br />- - - - <br />TDS(calc) 4850 4840 4650 15 0 4480 2570 3921 474 -..-77 0 5270- 32`;-. <br />TDS ratio 1.05 1.06 1.01 15 0 1.5 0.92 1.02 0.14 77 0 1.16 0.9 0.994 <br />Temperature 12.1 8 10.3 15 0 17.1 10.3 14.0 2.2 77 0 16. C5 7.8 11.5 <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.