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Page 11 of 18 <br /> TABLET <br /> ANALYTICAL RESULTS SUMMARY <br /> ANNUAL GROUNDWATER SAMPLING <br /> MAINTENANCE FACILITY <br /> TRACY,CALIFORNIA <br /> MARCH 2011 <br /> Sample Location: MW-13B MW-14A MW-14B MW-15A <br /> Sample ID: WG-2480-MW13B-170311 WG-2480-MW14A-160311 WG-2480 MW14B-180311 WG-2480-MW15A-160311 <br /> Sample Date: 3/17/1011 3/16/2011 3/18/2011 3/16/2011 <br /> Parameters Units <br /> Metals <br /> Iron mg/L - 0.44 - <0.20 <br /> Iron(dissolved) mg/L - <0.50 - <0.50 <br /> Manganese mg/L - 0.058 - <0.020 <br /> Manganese(dissolved) mg/L - <0.050 - <0.050 <br /> Petroleum Products <br /> Total Petroleum Hydrocarbons(C10-C28)DRO gg/L <51 <280 U <50 <50 <br /> Gas <br /> Carbon dioxide mg/L - 38.00 - 32.00 <br /> Carbon monoxide mg/L - <1.00 <1.00 <br /> Ethane gg/L - 0.006 J <0.025 <br /> Ethene gg/L - 0.013 J 0.014 J <br /> Methane gg/L - 0.210 0.071 J <br /> Nitrogen mg/L - 20.00 17.00 <br /> Oxygen mg/L - 3.20 3.70 <br /> General Chemistry <br /> Alkalinity,bicarbonate mg/L - 400 370 <br /> Alkalinity,carbonate mg/L - <5.0 <5.0 <br /> Alkalinity,hydroxide mg/L - <5.0 <5.0 <br /> Alkalinity,total(as CaCO3) mg/L - 400 370 <br /> Ammonia mg/L - <0.20 <0.20 <br /> Biochemical oxygen demand(BOD) mg/L - <2.0 <2.0 <br /> Chemical oxygen demand(COD) mg/L - <20 <20 <br /> Chloride mg/L - 130 200 <br /> Dissolved organic carbon(DOC) mg/L - 3.9 2.5 <br /> CRA 058324Memo-116-Tbls <br />