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1 <br />1 <br />i <br />1 <br />1 <br />1 <br />1 <br />1 <br />1 <br />i <br />1 <br />1 <br />1 <br />i <br />1 <br />Table A-1 <br />Sample Volume, Container Type, <br />and Preservation Requirements <br />Parameters <br />Volume Required (ml) <br />Container Type <br />Preservation <br />Volatile Organic <br />40 <br />Glass with Teflon -lined <br />HCl/Cool to 4°C <br />Compounds <br />septum <br />Metals' 2 <br />500 <br />Plastic' <br />HNO3 /Cool to 4°C <br />Alkalinity (carbonate, <br />100 <br />Plastic <br />Cool to 4°C <br />bicarbonate, total) <br />Chemical Oxygen Demand <br />50 <br />Plastic <br />H2SO4/Cool to 4°C <br />Chloride <br />50 <br />Plastic <br />Cool to 4°C <br />Hexavalent Chromium <br />500 <br />Plastic <br />Cool to 4°C <br />Nitrate -Nitrogen <br />100 <br />Plastic <br />HNO3/Cool to 4°C <br />Sulfate <br />50 <br />Plastic <br />Cool to 4°C <br />Sulfide <br />500 <br />Plastic <br />ZnAc/Cool to 4°C <br />Total Dissolved Solids <br />100 <br />Plastic <br />Cool to 4°C <br />Total Organic Carbon <br />25 <br />Glass with Teflon -lined <br />HNO3/Cool to 4°C <br />Cap <br />Semivolatile Organic <br />1,000 <br />Glass with Teflon -lined <br />Cool to 4°C <br />Compounds <br />cap <br />Organophosphorous <br />1,000 <br />Glass with Teflon -lined <br />Cool to 4'C <br />compounds <br />cap <br />Chloropbenoxy Herbicides <br />1,000 <br />Glass with Teflon -lined <br />Cool to 4°C <br />cap <br />Cyanide <br />1,000 <br />Plastic <br />. NaOH/Cool to 4°C <br />Oil and Grease <br />1,000 <br />Glass with Teflon -lined <br />HCl/Cool to 4°C <br />cap <br />1 Metals include aluminum, antimony, arsenic, barium, beryllium, boron, cadmium, chromium (total), cobalt, copper, iron, lead, manganese, <br />mercury, nickel, selenium, sOver, thallium, tin, vanadium, and zinc. <br />2 Groundwater samples are field filtered through a 0.45 -micron acrylic copolymer filter before preservation. <br />3 Plastic = linear polyethylene. <br />Groundwater Monitoring <br />A-9 Department of Public Works/Solid Waste <br />County of San Joaquin <br />