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1 <br /> PUBLIC, HEALTI4 SER CES <br /> SAN JOAQUIN COUNTY ?0. o� <br /> 2' ? <br /> ENVIRONMENTAL HEALTH DIVISION y <br /> Ernest M. Fujimoto, M.D., M.P.H., Acting Health Officer <br /> 304 E.Weber Ave., 3rd Floor • P. O. Box 388 • Stockton, CA 95201-0388 <br /> 209/468-3420 <br /> KYLE CHRISTIE <br /> ARCO PRODUCTS COMPANY MAII Fit c r c 0 B loch- <br /> PO BOX 5811 <br /> SAN MATEO CA 94402 <br /> Re: ARCO sites in San Joaquin County <br /> On August 8, 1995, a meeting was held in the office of the San Joaquin County Public Health <br /> Services, Environmental Health Division (PHS/EHD) to discuss the progress of the investigations and <br /> remedial activities at the ARCO sites in San Joaquin County. The following participants were in <br /> attendance: <br /> Kyle Christie ARCO Products Company Ron Zurlinden Brown and Caldwell <br /> Jay R. Johnson EMCON Margaret Lagorio PHS/EHD <br /> Mary Meays PHS/EHD Linda Turkatte PHS/EHD <br /> Diane M. Hinson PHS/EHD <br /> The following are summaries of the discussions and agreements reached for each site. <br /> 1711 E. Yosemite, Manteca ARCO Facility #6020 <br /> PHS/EHD contact - Michael Infurna <br /> This site was not discussed at this meeting <br /> 7906 N. EI Dorado St., Stockton ARCO Facility #2130 <br /> PHS/EHD contact - Michael Infurna <br /> The remedial system is currently operating. A total of 1400 pounds of hydrocarbons have <br /> been estimated destroyed to date. There have been some problems with the catalyst and it <br /> has been replaced once already. <br /> Two sparge and two vapor wells are to be installed the week of August 7, 1995. <br /> 441 W. Charter Way, Stockton ARCO Facility #2168 <br /> PHS/EHD contact - Michael Infurna <br /> The issue of the transmission shop located across the street to the west of this site as a <br /> possible source to the groundwater contamination was discussed. PHS/EHD showed a picture <br /> of the transmission shop which clearly shows a gasoline dispensing operation at the site in the <br /> past. The sign on the corner of the station read Atlantic Richfield. ARCO will research their <br /> records to determine if the site was operated in the past by ARCO or if the operator at the site <br /> bought ARCO gasoline. <br /> The data from the borings that were installed under the current tank complex at the site show <br /> contamination beginning at approximately 25 feet below ground surface, the depth of past <br /> seasonal high groundwater. The soil data observed to date has not supported that the <br /> release(s) from the site have caused the substantial groundwater contamination being <br /> observed in the monitoring well. However, the tank pit area, the piping runs and the dispenser <br /> area will be inspected judiciously at the time of the tank removal to attempt to completely rule <br /> out the tank system at this site as the groundwater pollution source. <br /> A joint meeting of all responsible parties identified for contamination in the area is scheduled <br /> for October 30, 1995, at 10:00 a.m. to be held at the office of PHS/EHD. <br /> A Division of San Joaquin County Health Care Services <br />