ARCHIVED REPORTS XR0006510 - Laserfiche WebLink

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documented on rm time sampler, and analyses to be performed, and achain The preserved f samples kare ey are placed in zlplock bags and stored in a chest cooed to 4 °C withce COC (chain of custody) delivered to the chosen laboratory Analytical Results 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 o" "d" "k" or "o" indicate gasoline, diesel, kerosene, or oil, respectively, I e iesults The letters a , TPH-d for diesel ranges TPH BTEX or MTBE are acronyms or abbreviations used for Benzene, Toluene, Ethylbenzene and all of the Xylenes (BTEX) and Metyl. tertiary-Butyl Ether hthe combination of theabovefive compounds ), respectively MBTEX is the designation fo Laboratory lower detection limits unless otherwise noted, due to matrix interference or elevated concentrations of target compounds, are as follows TPHg 50 uglL MTBE 0 5 ug1L Benzene 0 5 ug/L Toluene 0 5 ug/L Ethyl Benzene 0 5 ug/L Total Xylenes 10 ug/L The less than symbol, < used with a "parts per value" indicates the lower detection limit for a given p analytical result and the level, if present, of that particular analyte is below or less than that lower detection limit m, Other abbreviations commonly used are pp 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, respectively 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 in the fieldtofinalation is arlalysis anstorage record the movement and custody of a sample from collection Samples to be analyzed at the certified laboratory were lelabelgged n s{siteeCC sheet name, sample cation, dateovided by e the The same information provided on the sample time, and analysis to be performed) is also noted on the COC form Each person relinquishing custody of the sample set signs the COC form indicating extractsthe eand time of throughout the laboratory to e transfer to the d recipient A copy of the COC follows the samples or 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 B of the sampling report