Laserfiche WebLink
Advanced <br /> GeoEnvironmental, Inc. <br /> 31 December 2002 ��� © <br /> AGE-NC Project No. 96-0254 ,JAN 0 6 2003 <br /> E;vtJ <,,;fJ:i��ET HEALTH <br /> Ms. Lori DuncanFtR'd"sIT%SERVICES <br /> San Joaquin County Environmental'iHealth Department <br /> 304 East Weber Avenue, Third Floor <br /> Subject: Remedial Action Work Plan Addendum_ <br /> Former Curtiss Pontiac Buick <br /> 2450 Toste Road, Tracy,California. <br /> Dear Ms. Duncan: <br /> At the request of Mr. Joe Toste Jr', Advanced GeoEnvironmental, Inc. (AGE) has prepared this <br /> addendum to Remedial Action Work Plan, dated 31 October 2002,to provide information requested <br /> in your letter dated 27 November 2002. The requested information follows: <br /> • AGE proposed a maximum. excavation depth of 12 feet below surface grade (bsg). The <br /> proposed depth was based on ideal conditions at the site and with the intent of removing as <br /> much impacted soil as practical. The majority of impacted soil occurs between 3 feet and 8 <br /> feet bsg, with only minor concentrations of hydrocarbons detected below 8 feet bsg: AGE <br /> does not anticipate excavating below 8 feet bsg. <br /> • " " - ed'ountlg e.:ca:_tion, k nc'rm Wii be constructed-using <br /> Should,ground water be encounter <br /> clean overburden and lined with plastic sheeting. The bermed area will be utilized to contain <br /> saturated soil. Additionally,' submersible pumps will be used to de-water the excavation. <br /> Extracted groundwater will be stored in an above-ground poly tank pending disposal. <br /> •. Estimated mass balance calculations for total hydrocarbon mass in place and for hydrocarbon <br /> mass to be removed are included in Appendix A. <br /> It <br /> 837 Shaw Road,Stockton, California 95215 <br /> Telephone (209)467-1006 FAX(209)467-1118 <br />