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DOMESTIC WELL MONITORING RESULTS <br /> FIRST QUARTER 2007 <br /> AUSTIN ROAD UNIT <br /> SAN JOAQUIN COUNTY,CALIFORNIA <br /> 7898-A 8106-A <br /> Analyte Units 2/5/07 2/5/07 <br /> Field Parameters <br /> H Units 7.66 7.69 <br /> Specific Conductance mhos/cm 675 630 <br /> Temperature °C 17.9 18.1 <br /> Turbidity NTU 5 0 <br /> Monitoring Parameters <br /> Arsenic m 1a " <br /> Barium mrA 0.230 0.270 <br /> Bicarbonate mg/1 340 330 <br /> Calcium mg/1 76 71 <br /> Carbonate mg/1 3'( 3 X33 <br /> Chloride m /I 53 45 <br /> Chromium(Hexavalent) mg/1 0.0023 0.0032 <br /> Gasoline Range Organics mg/1 'b(36 <br /> Magnesium m /I 39 37 <br /> Nitrate as N m /I 8.2 6.9 <br /> Oil and Grease m /I <br /> Potassium m /17 4 6.4 <br /> Sodium m /l 38 35 <br /> Strontium mg/1 0.780 0.740 <br /> Sulfate m /I 51 47 <br /> Total Dissolved Solids m /I 510 500 <br /> Volatile Organic Compounds <br /> I,I-Dichloroethane Pg1I 0.85 <br /> cis-1,2-Dichloroethene mll 0. 9 0.55 <br /> Dichlorodifluoromethane /I 0.85 2.3 <br /> Tetrachloroethene 3.0 6.8 <br /> Trichloroethene 1 0.64 2.5 <br /> Notes: <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 /> 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 /> C[..4/2003-02!/ARI,IQ07 Tabks..10124/2008 <br /> GeoLogic Associates <br />