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custody delivered to the chosen laboratory AnalyticalResults TPH is the abbreviations used for Total Petroleum Hydrocarbons used by the laboratories for water and soil analyses . The letter following TPH indicates a particular distinction or grouping for the results The letters "g" , "d" , "k" , or "o" indicate gasoline, diesel, kerosene, or oil, respectively, ie TPH-d for diesel range TPH. BTEX or MTBE are acronyms or abbreviations used for Benzene, Toluene, Ethylbenzene and all of the Xylenes (BTEX) and Methyl Tertiary Butyl Ether (MTBE) , respectively MBTEX is the designation for the combination of the above five compounds . The less than symbol, <, used with a "parts per value" indicates the lower detection limit for a given analytical result and the level, if present, of that particular analyte is below or less than that lower detection limit Other abbreviations commonly used are ppm, ppb, mg/Kg, ug/Kg, ml/l and ul/l are parts per million, parts per billion, milligrams per kilogram, micrograms per kilogram, milliliters per liter, microliters per liter, respectivily Chain of Custody Documentation All water samples that are collected by WEGE and transported to a certified analytical laboratory are accompanied by chain-of- custody (COC) documentation This documentation is used to record the movement and custody of a sample from collection in the field to final analysis and storage . Samples to be analyzed at the certified laboratory were logged on the COC sheet provided by the laboratory The same information provided on the sample labels (site name, sample location, date, time, and analysis to be performed) are also noted on the COC form. Each person relinquishing custody of the sample set signs the COC form indicating the date and time of the transfer to the recipient A copy of the COC follows the samples or their extracts throughout the laboratory to aid the analyst in identifying the samples and to assure analysis within holding times Copies of the COC documentation are included with the laboratory results in Appendix A of this report MW8 VENTING PROCEDURES WEGE is using LTT vacuum trucks to pull an estimated 7 - 10 feet of water vacuum on MW8, for 2 hours weekly and exhaust directly to atmosphere This vacuum generates a flow rate of 3 R603 APPEND E