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For sampling chlorinated drinking grater supplies ror cniorinated volatiles samples shall <br /> be preserved wim s=um tniosulrate Use vials labeled -CONTAINS THIOSULFATE ` <br /> to particular cautions are necessary <br /> 7 F:II vial to overrlo�_ing with eater, avoiding turbulence and bubbling as much as <br /> possiole `.'later should stand above I:p or vial <br /> 8 Carefully, but quickly slip cap onto vial Avoid dropping the Teflon septum from cap <br /> by not Inverting cap until it is in contact with the vial Disc should have Teflon3 face <br /> toward the water ,Iso avoid touching white Teflon3 face with dirty fingers <br /> 9 Tighten cap securely, Invert vial, and tap against hand to see there are not bubbles <br /> inside <br /> 10 Label vial, using indelible ink as follows <br /> A Sample 1 D No <br /> 8 Job 1 D No <br /> C Date and Time <br /> D Type of analysis required <br /> E Your name <br /> 11 Unless the fabric-type label is used, place Scotch" tape over the label to preserve its <br /> integrity <br /> 12 For chain-of-custody reasons, sample vial should be wrapped end-far-end with Scotch" <br /> tape or evidence tape and signed with indelible ink where the end of the tape seals on <br /> itself The septum needs to be covered <br /> 13 Chill samples immediately Samples to be stored should be kept at 4' Celsius (C) <br /> (39 2' Fahrenheit (F)) Samples received at the laboratory above 1 O'C (as measured at <br /> glass surface by a thermocouple probe), after overnight shipping, will be considered <br /> substandard, so use a high quality cooler with sufficient ice or freezer packs <br /> 14 Fill out Cham-of-Custody Manifest and Analysis Request Form (see Chain of Custody <br /> Procedures, SOP 1 1) <br /> CONCORD SOP 12941 <br /> Ppr 2 of 2 <br /> GROUNDWATER <br /> �_ 1i TECLiNOL.OGY, ING <br />