Laserfiche WebLink
s <br /> California Rional Water Quality �ntrol Board <br /> Central Valley Region <br /> Robert Schneider Chair <br /> Arnold Schwaraenegger <br /> ternet Address: http.l <br /> Alan C.Lloyd Ph.D. Sacramento Main Office (((��� p Governor <br /> Secretary for 111020 Sun cone Drive <br /> v46#200 <br /> 291ncho Cod 464 47975670-6118 E���\V/IP D <br /> Environmental V L�-� <br /> Protection <br /> JUL i 5 2005 <br /> 11 July 2005 ENVIRONMENT HEALTH <br /> Ms.Kitty Walker <br /> PERMIT/SERVICES <br /> Mr. Thomas Bauhs <br /> Chevron Environmental Management Company Stockton 305 NorthDepartment of ElDorado StreetuSug&oRoedeve opmen <br /> P.O. Box 6012 Stockton, CA 95202. <br /> San Ramon, CA 94583-0904 <br /> REVIEW OF REPORTS, SOUTH SHORE PARCEL 2A, 666 WEST WEBER AVENUE, <br /> STOCKTON, SAN JOAQUIN COUNTY <br /> Staff of the Central Valley Regional Water Quality Control Board(Regional Board) reviewed the <br /> 7 July 2005 Response to Comments in the Regional Water Quality Control Board Letter Dated <br /> June 16, 2005 (7 July Response Letter) submitted by SECOR International Incorporated (SECOR) on <br /> behalf of the L&M Operable Unit Group and 13 June 2005 Review of Secor's "Revised Work Plan for <br /> Soil Vapor Assessment and Response to RWQCB Letter Dated May 3, 2005" and Requirements for <br /> Development of Comprehensive Site Cleanup Strategy (13 June Review Letter) submitted by Golden <br /> en <br /> State Environmental (GSE) on behalf of the City of Stockton Redevelopment Agency(RDA) for <br /> Operable Unit(L&M OU) along West Weber Avenue (site) in Stockton. he sitdis a portion n the C ty Area <br /> 2A belonging to the City of Stockton Redevelopment Agency(RDA) as id <br /> 13 September 2000 Environmental Master Plan. The 7 July Response Letter was submitted in response <br /> to the Regional Board staff letter of 16 June 2005,which in turn addresses the 20 May 2005 Revised <br /> Work er Dated May 3, <br /> lanfor Soil Vapor Assessment and Responses to mi ted by SECOR for the site. Regional Board staff have the fol owmg comments on ther7 5 (Work July <br /> also sub <br /> Response Letter. <br /> 1. The stated objective of the Work Plan is to provide a design for assessing baseline concentrations <br /> I and evaluating the effectiveness of the soil vapor extraction system. Regional Board staff concur <br /> with this objective. The work necessary to accomplish data collection in order to address <br /> deficiencies within the Human Health Risk Assessment(HHRA) for the site is being <br /> accomplished through work plans submitted by EarthTech in consultation with the Human and <br /> Ecological Risk Division(HERD) of the Department of Toxic Substances Control(DTSC). <br /> Thus, the comment related to the HHRA and soil vapor sampling for polyaromatic hydrocarbons <br /> (PAH) is withdrawn. Sampling for PAH is not necessary for the stated objective of the Work <br /> Plan. <br /> 2. It is imperative that the elements of the Work Plan do not adversely affect the data collection <br /> efforts for the purpose of the HHRA. In addition, it is imperative that L&M OU starts the Soil <br /> Vapor Extraction System(SVE) as an interim measure in order to accomplish some pollutant <br /> source removal. Therefore, L&M OU must expedite its work with HERD so that EarthTech may <br /> collect soil vapor samples and complete the necessary analyses in a reasonable time frame. <br /> California Environmental Protection Agency <br /> 0 Recycled Paper <br />