Laserfiche WebLink
ARCADIS UL 1 9 201 <br /> ENVIRONMkN I HEALTH ARCADIS U.S.,Inc. <br /> Infrastructure, environment, buildings PERMIT/SERVICES 100 Montgomery Street <br /> Suite 300 <br /> San Francisco <br /> California 94104 <br /> Tel 415.374.2744 <br /> Mr. Roberto Cervantes Fax 415.374.2745 <br /> Site Cleanup Program www.arcadis-us.com <br /> Regional Water Quality Control Board <br /> 11020 Sun Center Drive, Suite 200 <br /> Rancho Cordova, California 95670-6114 <br /> ENVIRONMENT <br /> Subject: <br /> Response to Regional Water Quality Control Board Comments on the "Site <br /> Investigation Work Plan"for 401 N. San Jose Street, Stockton, California Date <br /> September 7, 2010 <br /> Dear Mr. Cervantes: <br /> Contact: <br /> ARCADIS, on behalf of Chevron Environmental Management Company (CEMC), Peter Zawislanski <br /> which is managing this investigation for Texaco Inc., has reviewed the comments <br /> prepared by the Regional Water Quality Control Board (RWQCB) for the Site Phone: <br /> Investigation Work Plan (ARCADIS, July 30, 2010; "the Work Plan"; "the proposed 510.599.2422 <br /> investigation"), which was prepared for 401 N. San Jose Street, Stockton, California Email <br /> ("the Site"). The comments were provided in a letter dated August 18, 2010. The peter.zawislanski <br /> comments were further discussed during a telephone conversation on August 25, @arcadis-us.com <br /> 2010, during which it was confirmed that issues brought up in Comments # 1, 2, and <br /> 3 will be addressed during subsequent phases of site investigations, whereas the Our ref <br /> issues discussed in the remaining comments will be addressed during the proposed 60046810.0002 <br /> investigation. Responses to the RWQCB comments are presented below. <br /> Comment#1 <br /> "We are concerned with the lack of information regarding the former facility and it's <br /> decommissioning. In recent work at fuel facility sites on the waterfront of the Stockton <br /> Sip Channel, old tanks and pipelines have been discovered during the course of <br /> excavation, even after geophysical surveys were done. Historical aerial photographs <br /> could be a useful tool for identifying former facility features. While the proposed <br /> geophysical survey at the site will also be useful, at some point, Chevron[sic]should <br /> consider investigation by trenching, especially along the former ship off-loading <br /> pipeline alignment. At other sites, trenching was the most successful method of <br /> identifying subsurface items (tanks, pipeline corridors, etc.) and determining the <br /> degree of contamination associated with those facilities." <br /> Imagine the result <br />