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STATE OF CALIFORNIA ' GEORGE DEUKMEJIAN,Governor <br /> CALIFORNIA REGIONAL WA i QUALITY CONTROL BOARD— <br /> CENTRAL <br /> OARD— 0-.5 <br /> CENTRAL'VALLEY REGION3443 ROUTIER ROAD <br /> SACRAMENTO;1 CA 95827-3098 <br /> 3 June 1987 J U N 5 1987 - <br /> Mr. <br /> I9$7 -Mr. Al Bogetti ENVIROtVIENTAL HEALTH <br /> 2351 Toste Road PERMIT/SERVICES <br /> Tracy, CA 95376 <br /> SEWER PIPELINE CONSTRUCT-ION AT CHEVRON PIPELINE SPILL, GRANTLINE AND CORRAL <br /> HOLLOW ROAD, TRACY, SAN JOAQUIN COUNTY <br /> On 12 May 1987 1 talked with the City of Tracy and Chevron personnel. At that <br /> time ',your inquiries about when the construction of the sewer lines could resume <br /> were '!relayed to me. <br /> Construction should not resume in the immediate area of the original spill until <br /> a ground water extraction and treatment system is operating and monitoring shows <br /> its effectiveness. If construction were to begin in this area before such a <br /> system was installed, the dewatering wells would be pumping contaminated ground <br /> water that could not be properly treated. Operation of the dewatering wells may <br /> also cause the plume of contamination to migrate at a faster rate than would <br /> occur naturally. <br /> Once ',a treatment system is on-line, construction can continue in the immediate <br /> area ;'�as long as all contaminated water extracted is discharged to the treatment <br /> facility. As of now, two dewatering wells are known to be contaminated and must <br /> be treated. <br /> Until such an extraction/treatment and monitoring system is' installed, con- <br /> struci;ion can continue at a point where ground water is not contaminated and the <br /> extraction will not influence the contaminated plume of ground water. If you <br /> choose to begin construction at such a point it must be approved by the Regional <br /> _ _Board' beforehand. -- - - �.-- -- -- _�- -- <br /> If you have any questions regarding this matter, please call me at (916) <br /> 361-5667. <br /> DAVIDI L. BRENT <br /> Project Engineer <br /> OLB:jj <br /> cc: ,/Ms. Laurie Cotulla, San Joaquin Local Health District, Stockton <br /> Mr. Ken Hanigan, Building Department, City of Tracy <br /> Mr. Tom Fort, Chevron Pipeline, San Francisco <br /> Mr. Rollie Clutter, Chevron USA, Inc. , Pittsburg <br /> Mr. Randy Bruno, Pacific Asphalt, Stockton <br />