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SEpf pq.lFpCal/EPA <br /> CALIFORNIA REGION. _WATER QUALITY CONTROL BOARD <br /> i 6T -•�\ <br /> -�-- , CENTRAL VALLEY REGION <br /> i g m 3443 Routier Road, Suite A <br /> `. <br /> Sacramento, CA 95827-3098 <br /> gnu.`rtXp <br /> Phone(916)255-3000 <br /> FAX(916)255-3015 Pete Wilson,Governor <br /> 14 November 1997 <br /> Ms. Katie L. Hower <br /> Chevron Pipe Line Company <br /> 4000 Executive Parkway, Suite 400 <br /> San Ramon, CA 94583 <br /> REQUEST FOR NO FURTHER ACTION, CHEVRON PIPE LINE COMPANY, <br /> MOUNTAIN VIEW TOWN HOMES SITE, TRACY, SAN JOA QUIN COUNTY <br /> Staff has reviewed your Third Quarter 1997 Ground Water Monitoring Report and case closure <br /> request dated 15 October 1997. The report concludes that: 1) There is no evidence that the <br /> highly weathered hydrocarbons potentially present in soil are causing significant impacts to <br /> ground water; 2) There are no drinking water or water supply wells in the vicinity of the site; <br /> 3) There is no surface water body in the vicinity of the site; 4) Over time, the total pollutant <br /> mass in the subsurface has decreased and will continue to decrease; 5) The nature and extent of <br /> the hydrocarbons in the subsurface has been characterized; and 6) Soil and ground water <br /> sampling results indicate no migration of hydrocarbons potentially present in the subsurface. <br /> Based on staff's review of the available data, no further action is required. <br /> Nothing in this determination shall constitute or be construed as a satisfaction or release from <br /> liability for any conditions or claims arising as a result of past, current or future operations at <br /> this location. Nothing in this determination is intended or shall be construed to limit or preclude <br /> the Regional Board or any other agency from taking any further enforcement actions. This letter <br /> does not relieve Chevron Pipeline Company of any responsibilities mandated under the California <br /> Health and Safety Code and the California Water Code if existing, additional, or previously- <br /> unidentified contamination at the site causes or threatens to cause pollution or nuisance or is <br /> found to pose a threat to public health or water quality. <br /> If you have any questions, you may call me at (916) 255-3075. <br /> 1 <br /> WENDY L. COHEN <br /> Senior Engineer <br /> GAI:gai/lsb <br /> cc: Mr. Mike Infurna, San Joaquin County Public Health Department, Stockton <br /> Mr. Chris Glaudel, Rural California Housing Corporation, Sacramento <br /> Mr. George Forsythe, EMCON, Fresno <br />