ARCHIVED REPORTS_XR0012711 - Laserfiche WebLink

Home Browse Search

sample must be filtered. All the materials' precautions used in the construction of the _ sampling train should be observed for filtration apparatus. Vacuum filtration of groundwater samples is not recommended. Water samples for dissolved inorganic chemical constituents (e.g., metals, alkalinity and anionic species) will be filtered in the field. Sample Coutanners Sample containers vary with each type of analytical parameter. Selected container types and materials are non-reactive with the sample and the particular analytical parameter being tested. Appropriate containers for volatile organics are glass bottles of at least 40 milliliters in size fitted with teflon-faced silicon septa. Sample containers are properly cleaned and sterilized by the certified laboratory according to the EPA protocol for the individual analysis. _ &mpjg_Presery tr3�?3i Land,-Shlilinent Various preservatives are used by the certified laboratory to retard changes in samples. Sample shipment from Exceltech to laboratories performing the selected analyses routinely occurs within 24 hours of sample collection. lAnalytical EEff"alu -1 The analysis of g.oundwater samples is conducted in accordance with accepted quantitative analytical procedures. The following four publications are considered the �! primary references for groundwater sample analysis, and the contracts with the laboratories analyzing the samples stipulate that the methods set out in these publications be used. Please note that procedures used are periodically updated by federal and state �F agencies,and the certified laboratories amend analysis as required by the update. I Water and Wastew8= 16th Ed., } American Public Health Association,et al., 1985. Wis of Water and Wastes, U.S. EPA, 600/4-79- 020,March 1979. < r Wy k oTest Method s for EvaluatignW U.S.EPA SW-846, 1982. EXCELTECH, INC. Y' a. Laboratory Procedures Latest Revision: March 28, 1990