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1 <br /> California Regional Water Quality Control Board <br /> Central Valley Region <br /> Robert Schneider,Chair 0 <br /> Alan C.Lloyd,Ph.D. Arnold <br /> Secretaryfor Sacramento Main Office Schwarzenegger <br /> Environmental 11020 Sun Center Drive#200,Rancho Cordova,California 95670-6114 ED Governor <br /> Protection Phone(916)464-3291 -FAX(916)464-4645 rrz,E�V <br /> http://www.waterboards.ca.gov/centralvalley U uE <br /> 17 February-2005 "EptaF�{3 1 S 2005 <br /> ENVIR M�M�ERVICES H <br /> Elizabeth Haven pER <br /> UST Program Manager <br /> State Water Resources Control Board <br /> P.O. Box 2231 <br /> Sacramento, CA 95812 <br /> SUBJECT: RESPONSE TO PETITION, CHAPINBROTHERS INVESTMENTS,INC., <br /> 1766 MONTE DL4BLO AVENUE,STOCKTON,SANJOAQUIN COUNTY <br /> Regional Board staff reviewed the case file, including the 23 November 2004 Petition for Case Closure <br /> filed by Mr. Russell Chapin(see attached memorandum for specific comments). Based on our review <br /> we concur with the San Joaquin County Environmental Health Department that significant contaminant <br /> mass and concentrations remain at the site and that a No Further Action Required letter should not be <br /> issued at this time. The Responsible Parry has not adequately demonstrated that the plume will remain <br /> stable after cessation of active remediation by groundwater pump and treatment,that contaminant mass <br /> is reducing as the result of natural attenuation, nor properly projected when water quality objectives will <br /> be met. <br /> If you have any questions please contact me at (916) 464-4834 or Mr. James Barton at (916)464-4615. <br /> Brian Newman <br /> Supervising Engineer UST Program Manager <br /> Enclosures <br /> Cc w/enc: Mr. Kevin Graves, State Water Resources Control Board, P.O. Box 2231, <br /> Sacramento, CA 95812 <br /> Ms. Donna Heran, San Joaquin County Environmental Health Department, <br /> 304 East Webber Avenue, Third Floor, Stockton, CA 95202 <br /> Ms. Margaret Lagorio, San Joaquin County Environmental Health Department, <br /> 304 East Webber Avenue, Third Floor, Stockton, CA 95202 <br /> Mr. Russell Chapin, 1203 Carlton Ave., Stockton, CA 95203 <br /> California Environmental Protection Agency <br /> ��Recycled Paper <br />