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AMERICAN SODA INTERIM STATUS <br />DATA SUMMARY GROUND WATER WELL 28-1 <br />JULY 1, 1999 - MARCH 31, 2010 <br />Well ID 28-1 28-1 28-1 Numeric Earl Regulatory <br />Sample Date 8/26/2009 11/18/2009 3/17/2010 Protection Warning Standard BASELINE DESCRIPTIVE STATISTICS OPERATIONAL DESCRIPTIVE STATISTICS <br />Sample Type* Average Prima Prima Level Indicator Regulation Standard JULY 1, 1999 - SEPTEMBER 30, 2000 OCTOBER 1, 2000 - DECEMBER 31, 2009 <br />Completion Horizon Alluvial Alluvial Alluvial NPL EWI Number-41 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 0.61 0.59 0.64 None 0.94 0.75 Agricultural 15 0 0.72 0.52 0.605 0.056 73 0 0.72 0.51 0.62 0.042 <br />Calcium, dissolved 77.7 85 87.2 None None None None 15 0 77.5 52.7 68.4 7.2 73 0 97 51.9. 80.2 76 <br />Iron, dissolved <0.02 <0.1 <0.02 None None 0.3 Sewndary <br />Drinking Water <br />15 <br />9 <br />0.12 <br />0.005 <br />0.027 <br />0.033 <br />73 <br />50 <br />0.32 <br />0.005 <br />0.048 <br />0.051 <br />Lithium, dissolved 0.03 <0.1 0.04 None 2.5 2.5 Agricultural 15 15 0.05 0.02 0.026 0.012 73 63 0.1 . 0.02 0.044. ...0.013 -- <br />Magnesium, dissolved 338 377 385 None None None None 15 0 340 224 282.6 32.3 73 0 414 200 339.5 37.3 <br />Potassium, dissolved 3.7 3 4.6 None 5.21 None None 15 0 4 2.9 3.5 0.4 73 ` `0 6 2 3.6 0.6 <br />Silica, dissolved 25.8 29 28.3 None 35.96 None None 15 0 28 20.8 24.6 2.2 73 0 29 21.2 26.3 1.2 <br />Sodium, dissolved 940 1010 1040 None 1294 None None 15 0 961 659 830.3 77.7 73 0. 1100 673 929 82 <br />Bicarb as CoCO3 1050 1150 1120 None None None None 15 0 1130 985 1055 37 73 0 1550 865 1097 93 <br />Carbonate as CoCO3 <2 <2 40 None None None None 15 15 10 1 5 5 73 68 93 ` 1 - 5 14.87 : <br />Hydroxide as CoC03 <2 <2 <2 None None None None 15 15 10 1 5 5 73 73 1 1 1 0.00 <br />Total Alkalinity 1050 1150 1160 None 1290 None None 15 0 1130 985 1055 37 73 0 1550 865 1100 92 <br />Cation-Anion Balance % 2.8 1.2 -1.5 15 12 22.9 -8.4 -1.2 7.1 73 53 13.8 -8.55 -1.2 3.6 <br />Sum of Anions meq/L 69.1 77.8 84.3 15 0 73.4 37.9 65.19 8.53 73. 0 90.15 54.6 74.97 6.95 <br />Sum of Cations meq/L 73.1 79.7 81.8 15 0 73.6 50.3 63.36 6.33 73 0 87 50.4 72.97 6.86 <br />Chloride 68 80 81 None None 250 Secondary 15 0 83 53 73 8 73: 0 91 49 74 6 <br />Cond Q 25C(umhos/cm) 4940 6010 6030 None 7324 None None 15 0 5390 3640 4832 449 73 0 6500 4090 5330 491 <br />Fluoride 0.7 0.7 0.7 None 2 2 Agricultural 14 0 0.9 0.7 0.8 0.08. 73 0 - 1.2 0.4 : 0.7 0.13 <br />PH (units) 8.3 8.2 8 None None 6.5-8.5 Secondary <br />Dnnkin 15 0 8.3 7.5 7.8 0.2 73 0 8.5 6.9 7.9 0.3 <br /> <br />Total Dissolved Solids <br />4170 <br />4940 <br />5030 <br />None <br />5407 <br />4948 er <br />Quality <br />Stand,rds <br />15 <br />0 <br />4380 <br />3450 <br />3958 <br />248 <br />73 <br />0 <br />5310 <br />3260 <br />4500 <br />395 <br />Sulfate 2200 2500 2800 None None 250 Secondary <br />Dnnkin 15 0 2350 710 2000 393 73 0 2900 1600 2416 268 <br />TOS(calc) 4280 4770 5140 15 0 4480 2570 3921 474 73..... 0 5270 3250 4542 406 <br />TDS ratio 0.97 1.04 0.98 15 0 1.5 0.92 1.02 0.14 73 0 116 0.9 0.992 0.05 <br />Temperature 11.1 10.8 9.2 15 0 17.1 10.3 14.0 2.2 73 0 16.6 7.8 11.6 1.7 <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.