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ENVIRONMENTAL HEALTH DEPARTMENT <br /> PpU,IN SAN JOAQUIN COUNTY <br /> Unit Supervisors <br /> Q. Donna K.Heran,R.E.H.S. Carl Bor an,R.E.H.S. <br /> Director 304 East Weber Avenue, Third Floor Mike Huggins R.E.H.S.,R.D.I. <br /> Al Olsen,R.E.H.S. Stockton, California 95202-2708 Douglas W.Wilson,R.E.H.S. <br /> (9C'F6 <br /> R��P Program Manager Telephone: (209) 468-3420 Margaret Lagorio,R.E.H.S. <br /> Laurie A.Cotulla,R.E.H.S. Robert McClellon,R.E.H.S. <br /> Program Manager Fax: (209) 464-0138 Mark Barcellos,R.E.H.S. <br /> PAUL SUPPLE SEP 11 <br /> ATLANTIC RICHFIELD COMPANY ZOOS <br /> PO BOX 6549 <br /> MORAGA CA 94570 <br /> RE: ARCO Station #2133 SITE CODE: 1021 <br /> 2908 Ben Holt Drive <br /> Stockton CA 95207 <br /> San Joaquin County Environmental Health Department(SJC/EHD) has reviewed the file for the above <br /> referenced site and has the following comments. <br /> Review of the quarterly groundwater monitoring and sampling reports submitted on behalf of this site <br /> indicates that analysis of collected groundwater samples has generally been done by DHS LUFT <br /> Method for the following constituents: total purgeable hydrocarbons as gasoline (TPHg), benzene, <br /> toluene, ethylbenzene, xylenes (BTEX), and methyl tertiary butyl ether(MtBE). This site has made <br /> application to the State Water Resources Control Board Clean Up Fund to obtain a co-mingled plume <br /> status with the LUFT site across the street to the north, a Chevron station. To enable a comparative <br /> review of these two sites, please have all future quarterly groundwater monitoring samples collected <br /> from this site analyzed by EPA Method 8260 for TPHg, BTEX, all five fuel oxygenates, <br /> 1,2-dichloroethane and ethylene dibromide. <br /> Monitoring well E-8, which is located in the traffic lanes of Plymouth Road, has not been monitored or <br /> sampled since June 2002, due to the repaving of the road. You are directed to locate this well <br /> immediately, repair it if necessary and include it in all future quarterly groundwater monitoring and <br /> sampling events. <br /> Laboratory analytical results for this site are not being electronically submitted to GeoTracker, the <br /> State Water Resources Control Board database program, in a timely manner. Water Code Section <br /> 13196, California Code of Regulations Section 2729.1, commonly referred to as AB2886, requires this. <br /> Electronic transmission of laboratory analytical results to GeoTracker must be updated immediately. <br /> Donna Heran, REHS, Director <br /> Environmental Health Department <br /> (/vm- <br /> Lori Duncan, Senior REHS Margaret gorio, Supero HS <br /> LOP/Site Mitigation Unit IV LOP/Site Mitigation Unit IV <br /> cc: James Barton, CVRWQCB <br /> Rusty Benkosky, SECOR <br />