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AMERICAN SODA INTERIM STATUS <br />DATA SUMMARY GROUND WATER WELL 20-9 <br />JULY 1, 1999 - MARCH 31, 2011 <br />Well ID 20-9 20-9 20-9 Numeric Earl Regulatory <br />Sample Date 9/15/2010 12/13/2010 3/31/2011 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, 2010 <br />Completion Horizon B Groove B Groove B Groove NPL EWI Number 41 Classification <br /> TOTAL BELOW MAXIMUM MINIMUM MEAN STANDARD TOTAL BELOW MAXIMUM MINIMUM MEAN STANDARD <br />Parameter mg/l) -- SAMPLES DETECTION VALUE VALUE VALUE DEVIATION SAMPLES DETECTION VALUE VALUE VALUE DEVIATION <br />Boron, dissolved 1.42 1.41 1.31 None 2.08 0.75 Agricultural 15 0 1.74 1.43 1.5 77 0 1.73 0.74 1.47 0.121 <br />Calcium, dissolved 12 10 11 None None None None 15 0 11 10 10. <br />4 0. <br />Iron <br />dissolved 0.1 0.3 0.2 None None 0.3 Secondary 15 0 0.69 0.06 0.2 F <br />, Drinkin W <br />tr <br />Lithium, dissolved 0.6 0.7 0.6 None 2.5 2.5 Agricultural 15 0 0.62 0,5 0.5 <br />Magnesium, dissolved 4 4 3 None None None None 15 0 6 4 4. I _ 4 <br />Potassium, dissolved 6 5 6 None 9.26 None None 15 0 6.5 4 5.3 0.6 - - - <br />Silica, dissolved 20 18 19 None 21.98 None None 15 0 19 16.3 17.5 0.8 - <br />Sodium, dissolved 2080 2140 2270 None 2947 None None 15 - 0 2550 2190 - 2326.7 112.7 <br />Bicarb as CaC03 4380 4580 4660 None None None None 15 0 5100 4160 4742 283 _ I -t 1 <br />Carbonate asCaC03 <2 <2 <2 None None None None 15 13 536 1 66 142 r <br />Hydroxide as CoC03 <2 <2 <2 None None None None 15 15 100 1 23 40 <br />Total Alkalinity 4380 4580 4660 None 6138 None None .15 0 5100 4160 4792 283 S <br />Cation-Anion Balance % -2.2 -3.5 -1.5 15 11 5.4 -8.8 -2.1 4.2 <br />Sum of Anions meq/L 96.7 102 104 15 0 124 931 108.07 6.65 ... <br />Sum of Cations meq/L 92.6 95.1 101.0 15 0 113 97.4 103.52 4.86 <br />T - <br />-- <br />Chloride 280 320 330 None None 250 Secondary <br />15 <br />0 <br />390 <br />270 <br />321 <br />35 <br /> Drinkln ?.. <br />Cond @ 25C(umhos/cm) 7720 7540 7760 None 10057 None None 15 0 8820 7700 8298 362 -?-- ?_7.. <br />Fluoride 24.4 24.8 25.4 None 45.72 2 Agricultural 15 0 34 23.4 27.0 2.7 <br /> Secondary <br />pH (units) 8.6 8.3 8.5 None None 6.5-8.5 <br />Drinkina 15 0 8.6 7.7 8.0 03 <br />Total Dissolved Solids 5370 5450 5620 None 6793 7125 TDS Water 15 0 6020 .5320 5700 212 <br /> Quality " <br />Sulfate <10 <1 <10 None None 250 Secondary 15 14 800 5 64 204 ?- - '1 <br /> Drinkin <br />_ <br />TDS (calc) 5050 5270 5460 15 0 6450 5180 ' 5681 - 278 ?"' ? i ... r • _1 ' <br />TDS ratio 1.06 1.03 1.03 15 0 1.13 0.87 1.01 0.06 <br />Temperature 13.2 10.7 12.1 15 0 15 9.2 12.5 1.6 <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.