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DETECTION MONITORING RESULTS AND COMPLIANCE SUMMARY <br /> FIRST QUARTER 2007 <br /> AUSTIN ROAD UNIT <br /> SAN JOAQUIN COUNTY,CALIFORNIA <br /> Background <br /> Well <br /> Concentration AMW-2 AMW-6 I AMW-7 I AMW-12 AMW-13 AMW-14 <br /> Anal to Units Limit 2/6/07 2/6/07 2/6/07 2/7/07 2/6/07 2/5/07 <br /> Field Parameters <br /> H Units 6.49-8.37 7.55 7.811 8.32 7.83 7.65 7.75 <br /> Specific Conductance mhos/cm 1500 1230 3711 418 659 748 668 <br /> Temperature °C 21.51 17.1 191 20.1 17.5 18.2 18.2 <br /> Turbidity NTU 97 4 01 0 0 1 10 <br /> Monitoring Parameters <br /> Arsenic mo 0.007573 0.0040 0.0053 0.0047 0.0037 0.0045 0.0021 <br /> Barium mg/1 0.2491 0.190 0.140 0.210 0.210 0.270 0.230 <br /> Bicarbonate mg/1 512.8 420 170 170 320 370 330 <br /> Calcium mg/] 144.5 110 40 44 76 87 75 <br /> Carbonate m /I 10 61 .,, 34 .' 9.1 10 <br /> Chloride mg/] 79.99 65 36 40 39 48 50 <br /> Chromium Hexavalent m /I 0.00514 0,,' 0.0057 00060 0 0024 00040 <br /> 0."10,011 <br /> Gas Range Oramics m 0.025 0:0065. .. ','x, 0. 66 �� (1E1���. �� <br /> Magnesium m /I 66.32 53 18 19 32 43 36 <br /> Nitrate as N m /I 76.8 34 2.8 5.4 9.8 13 9.0 <br /> Oil and Grease m 1 5 19 19 ;' _ 1 ,,.:. . ..,: 19, 1 9. . <br /> Potassium m /I 10.44 9.5 6.3 8.7 3.9 6.5 5.5 <br /> Sodium m /I 80.02 68 24 28 47 46 44 <br /> Strontium MO 1.387 1.200 0.390 0.650 0.760 0.910 0.790 <br /> Sulfate m /I 152.5 88 23 -24-sol 581 53 <br /> Total Dissolved Solids mg/1 1 1120-1 7601 3001 340 5101 5601 530 <br /> Volatile Organic Compounds <br /> l,l-Dichloroethane 1 0.5 0:13 t1 1 1 13 b3 0 13 {117 <br /> cis 1D2 Diochlo oethene, /I 0.5 0,19 0A'9"'-' 0 111 01"'46"" <br /> e0.60 <br /> fT 0 i9 <br /> Dichlorodifluoromethane I 0.5 ( 20 '.y 00,� 02(? _ i520, x 0:0 0.73 <br /> Tetrachloroethene /I 0.5 L9 12 <br /> Trichloroethene /I 0.5 0 1 0.3# 1.t <br /> Trichlorofluoromethane /1 0.5 <br /> Notes: <br /> Concentration Limits submitted by Herst Associates,Inc. <br /> =Only volatile organic compounds reported above detection limits shown <br /> °C=degrees Celsius <br /> mg/1=milligrams per liter <br /> NTU=nephelometric turbidity units <br /> NC=Not calculated <br /> mg/I=micrograms per liter <br /> µmhos/cm=micromhos per centimeter <br /> Indicates that the analyte was not detected above laboratory practical quantitation limit. <br /> Value listed is laboratory detection limit or estimated trace(BOLDED)concentration. <br /> Not Analyzed <br /> * Suspected laboratory contaminant. <br /> GLA/2003-02 UARL Rp7 TAI-d,/F24/2008 <br /> Geologic Associates <br />