Laserfiche WebLink
Advanced <br /> GeoEnvironmental, Inc. <br /> 27 December 2004 <br /> AGE-NC Project No. 98-0534 it <br /> Ms. Vicki McCartney <br /> San Joaquin County Environmental Health Department ,� f <br /> 304 E. Weber Avenue, Third floor `" <br /> Stockton, California 95202 "f <br /> Subject: Site Assessment Work Plan - Revised Addendum <br /> Former MEL BOKIDES PETROLEUM FACILITY <br /> 2191 Navy Drive, Stockton, California <br /> Dear Mrs. McCartney: <br /> At the request of Mr.Nick Bokides of Me]Bokides Petroleum,Inc.,Advanced GeoEnvironmental, <br /> Inc.has prepared a revised addendum to the scope of Preliminary Site Assessment Work Plan,dated <br /> 15 June 1999 and approved by the San Joaquin County Environmental Health Department (EHD) <br /> on 08 July 1999. This addendum is a response to concerns expressed in the EHD letter dated <br /> 30 November 2004. <br /> The scope of work includes the installation of one depth-discrete ground water monitoring well to <br /> define the vertical extent of dissolved MTBE. The well will be installed at the location of well <br /> MW-6. To insure that a well screen is set within a permeable sediment and in accordance with the <br /> drilling procedures presented in the above-referenced work plan,continuous,relatively undisturbed <br /> soil samples will be collected from the pilot soil boring from 30 feet below surface grade (bsg) to <br /> total depth using a split core barrel. <br /> The pilot boring will be advanced to approximately 50 feet bsg,where an"in situ"grab ground water <br /> sample will be collected with a hydro-punch sampler and analyzed within 24 hours. If the ground <br /> water sample does not contain a detectable concentration of MTBE, a monitoring well will be <br /> established within a permeable zone at that depth utilizing a 5-foot screen. If MTBE is detected,the <br /> pilot boring will be advanced to a maximum depth of approximately 65 feet bsg and the monitoring <br /> well will be established within a permeable zone at that depth. <br /> AGE will procure the permit necessary to install the well. AGE will also notify the EHD 48-hours <br /> prior to any drilling activities. <br /> 837 Shaw Road,Stockton, California 95215 <br /> Telephone (209) 467-1006 FAX(209) 467-1118 <br />