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6. .._ 2.eservatzves are rac-'=ed for some types of samples. Use <br /> as <br /> special?.r orsparec vials from GTL, marked indicated <br /> — below, er use the acp_ccriate field procedure (SOP 12 for <br /> acidification) . Mate :rote on forms that samples were <br /> preserved. Always a•:e extra vials in case cl. problems. <br /> For samples from disscl',7ed gasoline sites or other samples <br /> shoudl be ac_dzfie- below pH 2 with sulfuric acid. Use <br /> vials with care and keep them upright. Eye protection, foot <br /> protection, and disccszbo a vinyl golves are required for <br /> handling. Samples designated for expedited service and <br /> analyzed wit::in sever: (7) days of sampling will be accept- <br /> able w=Lhcut preser•ra_icn. <br /> Acid causes burns. Glasses or goggles (not contacts) are. <br /> necessary for protect_cn of the eyes. Wash eyes with fresh <br /> water for 15 minutes if contact occurs and seek medical <br /> attention. rinse off ^ands frequently with water during <br /> handling. <br /> For sampling chlorinated drinking water supplies for <br /> chlorinated volatiles, samples shall be preserved with <br /> sodium thiosulfate. Use vials labeled "CONTAINS THIOSULFATE". <br /> No particular cauzicr_s are necessary. <br /> 7. Fill vial to overflow_-g with water, avoiding turbulence and <br /> _i bubbling as much as possible. Water should stand above lip <br /> of vial. <br /> S. Carefully but quickly slip cap onto vial. Avoid dropping <br /> -- the teflon disc from cap by not inverting cap until in <br /> contact with vial. D-sc should have teflon face toward the <br /> water. Also avcic tcicing white teflon face with dirty <br /> fingers. <br /> 9. Tighten cap securely, invert vial and tap against hand to <br /> see that there are no bubbles inside. <br /> 10. Label vial using indelible ink as follows: <br /> a) Sample I.D. No. (and "Groundwater Technology" if <br /> not on prepainted label) . <br /> b) Job I.D. No. <br /> c) Date and Time. <br /> d) Type of analysis requested. <br /> e) Your name. <br /> ETGROUNDWATER <br /> TECHNOLOGY,INC <br /> CONSULTING GROUNDWATER GEOLOGIST <br />