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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 lialocarbons 40 Glass with Teflon® -lined IICI to 1)11<2 <br /> septum Cowl to 4°C <br /> Volatile Aromatics 40 Glass with Teflon-lined IICI to pHQ <br /> Septum Cool to 4°C <br /> Metals', 500 Plastic' IINO, to 1)11<2 <br /> Cool to 4°C <br /> Alkalinity 100 Plastic Cowl to 4°C <br /> Chemical Oxygen Demand 50 Plastic It SO to 1)11<2 <br /> +Fool to 4°C <br /> Chloride 50 Plastic Cool to 4°C <br /> Ilexavalent Chromium 500 Plastic Cowl to 4°C <br /> Nitrogen Ammonia 50 Plastic If SO to 1)11<2 <br /> I-ool to 4°C <br /> ll.udness, 100 Plastic LINO, to 1)11<2 <br /> Cool to 4°C <br /> Nitrate-Ninugen 100 Plastic IINO, to 1)11<2 <br /> Cowl to 4°C <br /> Sulfate 50 Plastic Coal to 4°C <br /> Sulfide 500 Plastic 2 lni zinc acetate <br /> Cool to 4°C <br /> Total Dissolved Solids IW Plastic Cool Io 4°C <br /> Total Organic Carbon 25 Glass with Teflon-lined IINO, to 1)11<2 <br /> Septum Cowl to 4°C <br /> 'Metals include al uuinum,antimony,arsenic,barium,beryllium,bonen,cadmium,calcium,chrotuiu m (total),cotwit,copper,iron,lead,magnesium,manganese,mercury, <br /> molybdenum,nickel,potassium,setcnium, silver,sodium,tluallium,tin,vanadiwn,and zinc. <br /> 'Groundwater samples are field filtered through a 0.45-micron acrylic copolymer filter before preservation. <br /> 'Plastic=linear polyethylene. <br /> SAC/pjth fig 310)3!)00 40.6c l-9 3 l f c:3 <br />