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Chevron Chevron wo P11 148 + Chevron U.S.A.Products Company 2410 Camino Ramon San Ramon,CA 94583 January 21, 1994 P0.Box 5004 San Ramon,CA 94583-0804 Marketing Department Mr. Angelo Fannos Phone 510 842 9500 Realty World- Isaacs Company 22 W. Yokuts, Suite A Stockton, CA 95207 Re: Former Chevron Station#9-0342 1347 S. El Dorado Street Stockton CA Attached site map Dear Mr. Fannos: As you are aware, Chevron has been involved in environmental investigation and remediation activities at the subject site. Our involvement is required as part of our responsibilities to the property owner, Mr. Ramon Guerrero, to the Central Valley Regional Water Quality Control Board, and to the local regulating agency, San Joaquin County Public Health Services (SJCPHS). Recent construction performed by your company at the subject site has rendered two of our four groundwater monitoring wells inaccessible. As a result, Chevron cannot meet its responsibility to the property owner and is out of compliance with the regulating agencies. In August 1992, you surveyed the subject site with Mr. Harlin Knoll of the SJCPHS. During this survey all groundwater monitoring wells were identified onsite (see attached) and it was determined that none would interfere with site development plans. On January 15, 1993 I was informed that monitoring well MW-1 was inaccessible due to site construction. On February 17, 19931 met with you onsite to confirm that MW 1 was covered by cement At that time, I explained Chevron's intent to properly abandon the well and that we would pay all costs associated with cutting the cement for access. On February 19, 1993 1 faxed a copy of the well survey measurements that would enable you to accurately cut the cement for access. During March 1993, you told our consultant, Groundwater Technology, that you would coordinate the well abandonment work with them as soon as the well was accessible. After several failed attempts at locating MW-I with a backhoe, you called me in September, 1993 to report that the well could not be found. Later in September, you met with Harlin Knoll onsite to verify(again) that MW 1 was buried under the concrete. During that meeting, Mr. Knoll expressed his concern to you that the remaining onsite wells(MW-2 and MW-3) would have to be adjusted to accommodate the planned surface paving. After Mr. Knoll notified me of this, I made several attempts to contact you to coordinate an adjustment of our wells prior to the paving of the property. You returned none of my calls or messages and the property was paved and monitoring well MW-2 was covered with asphalt. The access of well MW-2 is essential to our environmental investigation. Chevron plans to measure groundwater conditions at the subject site during the first quarter of 1994. In order to do so, we would appreciate your full cooperation in providing access to this well before February 28, 1994. In addition, since diligent efforts were made by Chevron to prevent the paving of MW-2, it would _1