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Table A-1 <br /> Sample Volume, Container Type, <br /> and Preservation Requirements <br /> Parameters Volume Required(ml) Container Type Preservation <br /> Volatile Organic 40 Glass with Teflon-lined HCl/Cool to 4°C <br /> Compounds septum <br /> Metalsl'2 500 PlastiC3 HNO3/Cool to 4°C <br /> Alkalinity(carbonate, 100 Plastic Cool to 4°C <br /> bicarbonate,total) <br /> Chemical Oxygen Demand 50 Plastic H2SO4/Cool to 4°C <br /> Chloride 50 Plastic Cool to 4°C <br /> Hexavalent Chromium 500 Plastic Cool to 4°C <br /> Nitrate-Nitrogen 100 Plastic HNO3/Cool to 4°C <br /> Sulfate 50 Plastic Cool to 4°C <br /> Sulfide 500 Plastic ZnAc/Cool to 4°C <br /> Total Dissolved Solids 100 Plastic Cool to 4°C <br /> Total Organic Carbon 25 Glass with Teflon-lined HNO3/CooI to 4°C <br /> Cap <br /> Semivolatile Organic 1,000 Glass with Teflon-lined Cool to 4°C <br /> Compounds cap <br /> Organophosphorous 1,000 Glass with Teflon-lined Cool to 4°C <br /> compounds cap <br /> La-nd <br /> enoxy Herbicides 1,000 Glass with Teflon-lined Cool to 4°C <br /> cap <br /> 1,000 Plastic NaOH/Cool to 4°C <br /> rease 1,000 Glass with Teflon-lined HCl/Cool to 4°C <br /> clude alcmmum,antimony,arsenic,barium,beryllium,boron,cadmium,cbromium(total),cobalt,coppe,iron,lead,manganese, <br /> nickel,scleaiimr,sIlvcr,tballirmm,tin,vanadium,and zinc. <br /> ter samples are field filtered through a 0.45-micron acrylic copolymer filter before preservation. <br /> inear polyethylene. <br /> Groundwater Monitoring A-9 Department of Public Works/Solid Waste <br /> ® County of San Joaquin <br />