SITE INFORMATION AND CORRESPONDENCE

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ENVIRONA4ENTAL HEALTHI)EPARTMENT SAN JOAQUIN COUNTY unifstopervism..S Donna K. }Ieran,R.E.".S. u).- F�E rector 304 East Weber Avenue, Third Floor Cad Borgman, R.F.H.S. Al 01sen,R.EH . .S. Stockton, California 95202-2708 Mike I higgiiis. R.F.1 L'S., R.D.I. 7�1 Douglas W. Wilson, R,F,I Ls'. I.. V, Prop-am Alanagel. Laurie A.Cottilla, R.E.H.S. Telephone: (209) 468-3420 Margaro Lagorio, R.1"Al.s. PnWiwnr Ahmago- Fax: (209) 464-0138 Robed McCleflon, R.L.H.S. Mark Barcellos, R.F.1 I.S. June 12, 2003 Nicole R. Gleason Downey Brand Attorneys, LLP 555 Capitol Mail, 10"' Floor Sacramento, CA 95814 Re: HERITAGE SQUARE, 640 N SAN JOAQUIN ST, STOCKTON CA Dear Ms. Gleason: This letter is in response to your letter dated June 10, 2003, requesting that the San Joaquin County Environmental Health Department (EHD) confirm that your clients, David and Marianne Warwick, were directed to perform corrective action due an unauthorized release from an underground storage tank located at the above referenced address. The following is a chronological summary of EHD activities associated with this site: • On January 31, 2002, a permit application to drill geotechnical borings to determine structural soil properties was submitted to the EHD. Destruction of the boreholes was witnessed by EHD staff on February 6, 2002. • On May 22, 2002, EHD staff received a call from Condor Earth Technologies (CET) stating that a supply and a return line traced to an underground storage tank (UST) had been discovered while trying to repair a broken water line. They requested that EHD staff respond to witness collection of samples from under the UST system lines so that the water line could be repaired and water supply restored to two occupied buildings at the site. The EHD staff agreed to observe the sampling with the understanding that an UST system (tank and piping) removal plan be submitted the following day. • Collection of samples from under the exposed piping was witnessed on May 22"d. On May 23d, EHD staff witnessed collection of soil samples from an angle boring placed under the UST located along the east foundation of the Women's Center property. The location of a second tank was suspected but had not been confirmed at that time. The presence of an abandoned water well was documented by EHD staff. • On May 281h, an application for a permit to remove the previously unidentified UST, located north of the Heritage Square building was submitted by CET. On page 4, Item 5, of that submittal, the applicant noted "During the removal of the pipes, small amounts of bunker oil leaked from the break points."