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For sampling chlornnatea drinking water suopues tor cnlonnated volatiles, samples shall <br /> be preserved wltn soolum thiosutrate Use vials labeled 'CONTAINS THIOSULFATE <br /> No particular cautions are necessary <br /> 7 Fill vial to overrlowing wim water, avoiaing turouience and bubbling as much as <br /> possible Water should stana above lip or vial <br /> 8 Carefully, but quickly, slip cap onto vial Avoid dropping the Teflonv septum from cap <br /> by not Inverting cap until it is In contact with the vial Disc should have Teflona face <br /> toward the water Also avoid touching 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 /> __Sample 1 0 -No <br /> S Job 1 D No <br /> C _-- _ Date and-Time <br /> D. Type of analysts required <br /> E. Your name <br /> 1 1 Unless the fabrtc- <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 [FI) 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 Chain-of-Custody Manifest and Analysis Request Form (see Chain of Custody <br /> Procedures, SOP 1 1) <br /> CONCORD SOP (2!941 Pq*2 of 2 <br /> ® GROUNDWATER <br /> ,_ �� TECHNOLOGY, INC <br />