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r <br /> r <br /> Chevron <br /> Chevron Corporation <br /> 576 Standard Avenue, Richmond, CA 94802-0627 <br /> December 18 , 1987 <br /> Mr . David L. Brent PUMCI <br /> Water Resources Control Engineer California Regional Water <br /> Quality Control Board DEC 31 1W7 <br /> Central Valley Region <br /> 3443 Routier Road ENVIROMENTAL HEALTH <br /> Sacramento, California 95827-3098 PERMIT/SERVICES <br /> Dear Mr . Brent: <br /> Please find attached our revised work plan for the Alden Park <br /> area of Tracy, California. Your comments on our draft work plan <br /> have been addressed as we discussed by telephone. The work plan <br /> details our proposal to: (1) conduct a soil venting field test, <br /> (2) plant trees in Alden Park, and (3) stop surface oil seeps. A <br /> liquids pumping test for the site is discussed in a separate work <br /> plan. <br /> To obtain permits from the city, they have asked us to review <br /> this plan with you and respond to your comments to your satisfac- <br /> tion. They also requested you give them formal approval for us to <br /> penetrate the concrete slab in Alden Park without resealing it, <br /> as described in the work plan. <br /> Based on your comments, we have made revisions to the draft work <br /> plan and have added the Health and Safety Plan in the Appendix. <br /> Give Mr . D. L. Ely a call at (415) 620-3171 to discuss any con- <br /> cerns . When you are satisfied with the contents, please formally <br /> notify the City of Tracy (Mr . Craig Phillips, Attn: Mr . Ken <br /> Hannigan) that you have reviewed this plan and approve the pene- <br /> tration of the underground concrete slab in Alden Park. <br /> Your timely assistance is greatly appreciated. <br /> Very--truly yours, <br /> D. L. Ely <br /> Encl . - Report, "Chevron Bioventing F <br /> Field Test, " dated 12-17-87 <br /> cc: Mr . Craig Phillips <br /> Mr . Ken Hannigan <br /> Mr . Charles A. McLaughlin <br /> Mr . David R. Carls-� <br />