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SIERRA <br /> Table 4 Analytic Results for Ground Water - Metals and Total Coliform - Chevron Service Station #9-6171, 6633 Pacific Avenue, <br /> Stockton, California <br /> Sample Date Analytic Analytic Pb Ni Cd Cr Zn TC <br /> IDSampled Method Lab <----- ------------------------- -------------------ppb---------------------- --------------------> <br /> MW-2 9/5/90 7420 SAL <500 --- --- - - <br /> MW-3 9/5/90 7420 SAL <500 --- --- --- --- --- <br /> MW-4 9/5/90 7420/908A SAL <500 - --- --- --- 240 <br /> MW 5 9/5/90 7420/7520/7130/7190/7950 SAL <500 <500 30 400 1,100 -- <br /> I <br /> Title 22 <br /> STLCs 5 000 20 000 1000 560,000 250 000 ` <br /> EXPLANATION ANALYTIC METHODS <br /> Pb =Total Lead 7520=EPA Method 7520 for Total Nickel <br /> Ni=Nickel 7130=EPA Method 7130 for Cadmium <br /> Cd =Cadmium 7190=EPA Method 7190 for Chromium <br /> Cr=Chmmium 7420=EPA Method 7420 for Lead <br /> Zn=Zinc 7950=EPA Method 7950 for Zinc <br /> TC =Total Coliform 908A=Standard Methods Method 908A for Total Coliform <br /> ppb=Parts per billion <br /> Title 22 STLCs=Title 22 of the California Administrative Code ANALYTIC LABORATORY <br /> I <br /> SAL=Superior Analytical Laboratory of Martinez California <br /> NOTE <br /> • Title 22 establishes acceptable Coliform levels in Sections 64421 <br /> through 64423 <br /> 14601T GWM <br /> 1 <br />