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e <br /> e <br /> Limited Hydra9eo ogrc Assessment Workplan <br /> 1399 E Yosemite Avenue Manteca Callfornia <br /> Well development water will be stored temporarily on site in DOT-approved 55-gallon <br /> P P Y PP g <br /> drums pending laboratory analysis of the groundwater samples Following receipt of the <br /> laboratory results, the development water will be transported by a licensed hauler from <br /> the site to an appropriate disposal facility <br /> Groundwater samples will be analyzed for concentrations of a) TPH, as gasoline, by <br /> GC/FID Method 5030, b) TPH, as diesel, by GC/FID Method 3510, and c) BTEX by EPA <br /> Method 602 <br /> Laboratory Analysis and Practical Quantitation Limas <br /> Soni and groundwater samples will be analyzed by NET Pacific, Inc , of Santa Rosa, <br /> California, a state-certified analytical laboratory <br /> In accordance with the Tri-Regional Guideline recommendations, dated August 1990, the <br /> practical quantitation limits (PQL) for both soil and water analyses are as follows <br /> Soil - <br /> a) for TPH, as gasoline, the PQL is 1 0 parts-per-million (ppm), <br /> b) for TPH, as diesel, the PQL is 1 0 ppm, and, <br /> C) for BTEX the PQL is 0 005 ppm <br /> Water - <br /> a) for TPH, as gasoline, the PQL is 0 050 ppm, <br /> b) for TPH, as diesel, the PQL is 0 050 ppm, and, <br /> c) for BTEX the PQL is 0 0005 ppm <br /> In addition, a spike peak, surrogate sample and standards will be run to ensure quality <br /> assurance and quality control of the analyses <br /> 90-098A WPN S <br />