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AMERICAN SODA INTERIM STATUS <br />DATA SUMMARY GROUND WATER WELL 21-2 <br />JULY 1, 1999 - MARCH 31, 2010 <br />Well ID 21-2 21-2 21-2 Numeric Earl Regulatory <br />Sample Date 8/25/2009 11/17/2009 3/16/2010 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 - DECEMBER 31, 2009 <br />Completion Horizon Alluvial Alluvial Alluvial NPL EWI Number 41 Classification <br /> <br />Parameter m /I'• TOTAL <br />SAMPLES BELOW <br />DETECTION MAXIMUM <br />VALUE MINIM <br />VALUUEM 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 0.15 0.1 0.15 None 0.75 0.75 Agricultural 15 0 0.2 0.15 0.162 0.017 73 0 0.17 0.1 0.15 0.012 <br />Calcium, dissolved 127 124 122 None None None None 15 0 139 100 124.8 9.0 73 0. 145 114 125.2 -: 5.4 <br />Iron, dissolved 0.45 0.6 0.64 None None 0.3 Secondary <br />Drinking Water <br />15 <br />0 <br />0.89 <br />0.05 <br />0.602 <br />0.265 <br />73 <br />0 <br />0.88 <br />0.15 <br />0.712 <br />0.127 <br />Lithium, dissolved 0.08 <0.2 0.09 None 2.5 2.5 Agricultural 15 2 0.12 0.05 0.089 0.014 73 3 0.5 0.05. 0.095 , 0.049 <br />Magnesium, dissolved 165 155 159 None None None None 15 0 177 156 162.2 6.1 73 0 185 146 161.1 6.9 <br />Potassium, dissolved 1.4 <3 1.9 None 3.11 None None 15 2 2 1 1.5 0.2 73 3 1.9 1 1.4 0.17 <br />Silica, dissolved 51 53 51 None 82.06 None None 15 0 57.3 34.9 50.9 5.4 73 0 66 49.3 54.3 2.47 <br />Sodium, dissolved 207 247 216 None 425 None None 15 0 600 201 247.8 101.1 73 0 247 180 209 12 <br />Bicarb as CaC03 886 870 882 None None None None 15 0 1810 791 970 248 73 0 1050 645 869 64 <br />Carbonate asCaC03 <2 <2 <2 None None None None 15 15 10 1 5 5 73 73 1:. 1 1 0 <br />Hydroxide as CoC03 <2 <2 <2 None None None None 15 15 10 1 5 5 73 73 1 1 1 0 <br />Total Alkalinity 886 870 882 None 1493 None None 15 0 1810 791 970 248 73 0 1050 645 869 64 - <br />Cation-anion Balance % 0.9 5.1 <0.2 15 5 5 -4.7 0.02 2.8 73 38 10.2 -7.9 0.3 3.2 <br />Sum of Anions meq/L 28.5 26.9 28.8 14 0 33.9 27.3 29.84 1.88 73 : 0 32.6 25.3 28.74 " 1.33 <br />Sum of Cations meq/L 29 29.8 28.7 14 0 34.7 27.7 29.67 1.84 73 0 33 26.3 28.86 1.13 <br />Chloride 16 16 16 None None 250 Secondary <br />Dnnking 15 0 23 10 13 3 73 0 18 -10 14: 2 <br />Cord @ 25C (umhos/cm) 2190 2190 2190 None 3154 None None 15 0 22300 2090 3684 5164 73 0 2395 565 2139 215 <br />Fluoride 0.3 0.3 0.3 None 2.0 2.0 Agricultural 15 0 0.5 0.3 0.4 0.1 73 1 18 0.05 0.6 2A <br />pH (units) 7.8 7.7 7.7 None None 6.5-8.5 Secondary <br />Drinking 15 0 8 6.4 7.1 0.4 73 0 8.2 5.5 7.3 0.4 <br /> <br />Total Dissolved Solids <br />1570 <br />1580 <br />1560 <br />None <br />2060 <br />2076 a er <br />Quality <br />Standards <br />15 <br />0 <br />2550 <br />1510 <br />1661 <br />253 <br />73.. <br />0 <br />1700 <br />1510 <br />1576 <br />35 <br />Sulfate 490 430 510 None None 250 Secondary <br />Drinking <br />15 <br />0 <br />550 <br />530 <br />536 <br />7 <br />73 <br />0 <br />750 <br />400 <br />521 <br />39 <br />TDS (calc) 1590 1550 1610 15 0 2550 1560 1725 242 73 0 `. 1740 1500 1614 48 <br />TDS ratio E 1.02 0.97 15 0 1.01 0.93 0.96 0.02 73 0 1.08 0.88 0.978 0.04 <br />Temperature 12. 10 11 15 0 18.1 8.7 12.1 2.5 -73 0 16.8 6.9 11.5 21 <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.