Laserfiche WebLink
nr <br />!Tn <br /> September 13, 1991 <br /> Unocal Station No. 6981, Stockton. California <br /> Vapor samples collected during the vapor-extraction test will be analyzed at a laboratory for <br /> TPHg and BTEX using modified California Air Resource Board Method 410,modified EPA <br /> Method TO-14, modified EPA j%lethod 8015, and modified EPA Method 802x• The vapor <br /> samples will be submitted to a laboratory certified by the State of California for analysis of <br /> water and soil samples,however, there currently is no State-certification for laboratories to <br /> perform analysis of vapor samples. <br /> REPORT PREP ARAT!ON <br /> If the extent of residual and dissolved hydrocarbons is delineated during this investigation <br /> we will prepare a Problem Assessment Report (PAR) summarizing our field methods, <br /> laboratory procedures,laboratory results, conelttsions, and recommendations. If the extent <br /> of hydrocarbons in soil and ground water is not delineated, we will prepare a sratus report <br /> with recommendations for additional worm. With Unocal's authorization, either a PAR or <br /> a status report of the work performed will be submitted to the SJPI-IS approximately 3 <br /> months after the drilling project is completed. Information gathered will be considered <br /> confidential and released only with authorization of Unocal. <br /> PROJECT PERSONNEL. <br /> Mr.John Bailey Bobbitt, a Registered Geologist (R.G.4313) in the State of California,will <br /> be in charge of the project. Mr. David F. Stavarek, Project Director,will manage field and <br /> office operations. RESNA employs a staff of engineers, geologists, and technicians whose <br /> 4., services will be used to see the project through to completion. <br /> w� <br /> -- Sso3.-.cw 18 <br />