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mor samonng cnlorinateo drinking water suopues ror cnionnated volatiles, samples shall <br /> be preserves with soe:um thlosuirate Use vials labeled "CONTAINS THIOSULFATE - <br /> i"!o particular cautions are necessary <br /> 7 Fill vial to overtlowing %-,mn water avoicing turoulence and buboling as much as <br /> aossible 'later snould stane above lip or vial <br /> 8 Carefully, but quickly, sfio cap onto vial Avoid dropping the Teflon septum from cap <br /> by not inverting cap until 1t ,s 1n contact with the vial Disc should have Teflon face <br /> toward the water Also avoid toucning white Teflon-' 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 0 No <br /> B Job I D No <br /> C Date and Time <br /> D Type of analysis required <br /> E Your name <br /> 11 Unless the fabric- <br /> 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-for-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 (F3) Samples received at the laboratory above 10'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 Chain-of-Custody Manifest and Analysis Request Form (see Chain of Custody <br /> Procedures, SOP 11) , <br /> CONCORD SOP f21941 Peas 2 of 2 <br /> ® GROUNDWATER <br /> ,_ �� TECHNOLOGY, INC <br />