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r <br /> 1 <br />' For sampling chkxmated dnnkng water supplies for chlorinated volatiles, samples shall be <br /> preserved with sodium thiosu fate use vials labeled "CONTAINS THIOSULFATE'. No particular <br /> cautions are necessary. <br />' 7. Fill vial to overflowing with water, avoiding turbulence and bubbling as much as possible Water <br /> should stand above lip of vial <br />' 8 Carefully but quickly slip cap onto vial Avoid dropping the teflon septum from cap by not <br /> Inverting cap until In contact with vial Disc should have teflon face toward the water Also avoid <br /> touching white teflon face with dirty fingers <br />' 9 Tighten cap securely, invert vial and tap against hand to see that there are no bubbles inside <br />' 10 Label vial using indelible ink as follows <br /> a) Sample I.D No <br /> I� b} Job I D No <br /> c) Date and Time <br /> d) Type of analysis requested <br /> e) Your name <br /> 11 Unless the fabric type label Is used, place scotch tape over the label to preserve its integrity <br /> 12 For Cham of Custody reasons, samples vial should be wrapped end-for-end with scotch tape or <br /> evidence tape and signed with indelible ink where the end of the tape seals on Itself The septum <br /> needs to be covered <br /> 13 Chill samples Immediately Samples to be stored should be kept at 49C (39` ) Samples received <br /> at the laboratory above 101C (as measured at glass surface by a thermocouple probe), after <br /> overnight shipping will be considered substandard, so use a high quality cooler with sufficient ice <br /> or freezer packs (Coolers are available from GTEL) <br /> 14 Fill out Chain of Custody and Analysis Request form (See Chain of Custody Procedures SOP 11 ) <br /> GROUND"ATER <br /> _ TECHNOLOGY, INC <br />