SITE INFORMATION AND CORRESPONDENCE FILE 2

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PUBLIC MALTH SERVICES SAN JOAQUIN COUNTY ENVIRONMENTAL HEALTH DIVISION „. Karen Furst, M.D., M.P.H., Health Officer P. 304 East Weber Avenue, Third Floor • Stockton, CA 95202 1Q`"Oa 209/468-3420 CC ��J" tj ROGER PHILLIPS OCT 10 1997 CITY OF STOCKTON 305 NORTH ELDORADO STREET SUITE 200 STOCKTON CA 95202 RE: Harris Property located at 2456 Country Club Boulevard Stockton CA San Joaquin County Public Health Services,Environmental Health Division(PHS/EHD)on September 26, 1997 conducted a site visit for the purpose of inspecting the sampling of the domestic well located at 2456 Country as part of the investigation of petroleum contamination associated with the nearby Country Club Shell Station located at 2575 Country Club. Gasoline contamination, including methyl tertiary butyl ether has been evidenced in samples collected from a nearby domestic well and the Caltrans irrigation well, in addition to on site and off site monitoring wells installed by Shell Oil. if permission is granted by the nearby property owners, PHS/EHD has directed Shell Oil to sample several domestic and irrigation wells on a quarterly basis. A summary of the observations which were made during the well sampling inspection and information obtained during a related permit survey has been prepared for your information and consideration. The domestic well was located outside with an insecure partial covering. The well was connected via a pipe to the pressure tank through an unfinished hole in the garage where the tank was located. The pressure tank appeared to be leaking as evidenced by accumulated water adjacent to the tank. The well's surface seal was obviously compromised as evidenced by large cracks of up to 3 inches wide in the cement adjacent to the well. An attempt was made in the past to cover these large cracks with concrete as evidenced by the loose piece of concrete which was placed next to the well. The other half of the loose piece of concrete was not observed near the well. The well also appeared to be covered by a casing cover as was suggested when the representative from Blaine Tech attempted to loosen the chlorinating plug to obtain a sample directly from the well. As attempts were made to loosen the plug,what appeared to be the casing, noticeable moved. No further attempts to access the well through the chlorinating plug were made. As a part of collecting site histories of properties near the Shell Station, PHS/EHD reviewed permit histories. No permits for septic system repair or destruction were located for this property. The only permit which was located was for a pump replacement in 1981. PHS/EHD spoke with Carol Carrick,the daughter of the property owner,and showed her the problems which were observed with the well. PHS/EHD will provide the property owner with written notification that the well must be repaired. PHS/EHD recommends that the condition of the domestic well located at 2456 Country Club be evaluated by a C-57 licensed contractor and that the cost and benefit of repairing the well be compared with the cost and benefit of connecting to a public water supply. It is PHS/EHD's intent to provide as much information as possible to protect the public health of the residents of San Joaquin County. Should you have any questions,require further information,or wish to schedule a joint inspection, please do not hesitate to contact me at(209)468-0337. Donna Heran,REHS,Director Envronn�m11eeXnJJ'ttaa"l HHeaallth�Division ' �Meays, Senior REHS M�ga�retL�ago�HC s Site Mitigation Unit Supervisor cc: Interested Parties List A Division of San Joaquin County Health Care Services