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Table A-2 <br /> Selected Analytical Test Methods and Sample Holding Times <br /> Parameters Test Method Holding Time Reference <br /> Volatile Organic Compounds(VOCs) 8260 14 days 1 <br /> Metals 6010 Series 6 monthsb 2 <br /> Sulfide 376.1 7 days 2 <br /> Alkalinity(Carbonate,Bicarbonate,Total) 310.1 14 days 2 <br /> Chloride 9252 28 days 2 <br /> Nitrate-Nitrogen 9200 14 days 2 <br /> Sulfate 9038 28 days 2 <br /> Total Dissolved Solids(TDS) 160.1 7 days 2 <br /> Total Organic Carbon(TOC) 415.1 28 days 2 <br /> Semivolatile Organic Compounds 8270 7 days extraction 1 <br /> 40 days analysis <br /> Organochlorine Pesticides and PCBs 8080 7 days extraction 1 <br /> 40 days analysis <br /> Chlorophenoxy Herbicides 8150 7 days extraction 1 <br /> 40 days analysis <br /> Organophosphorous Compounds 8141 7 days extraction 1 <br /> 40 days analysis <br /> pH Field Measurement Analyzed Immediately NA <br /> Specific Conductance Field Measurement Analyzed Immediately NA <br /> Temperature Field Measurement Analyzed Immediately NA <br /> Turbidity Field Measurement Analyzed Immediately NA <br /> ' Methods for Organic Chemical Analysis of Municipal and Industrial Wastewater USEPA-600/4-82-057,July 1982 <br /> Z Methods for Chemical Analysis of Water and Wastes,USEPA-600/4/79/020,revised March 1983 <br /> Metals analyzed by ICP(USEPA Method 6010)with the exception of arsenic(USEPA Method 7060),lead(USEPA Method 7421), <br /> mercury(USEPA Method 7470),selenium(USEPA Method 7740),and thallium(USEPA Method 7841). <br /> n Holding time for all metals is 6 months,with the exception of mercury(28 days). <br /> NA=Not Applicable <br /> Foothill WQPS Rev I.doc <br /> A-11 <br />