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THE SAN JOAQUIN COMPANY INC. 1 120 HOLLYWOOD AVENUE, SUITE 3, OAKLAND.CALIFORNIA 94602 Mr. Russ Zelmer 7060 W. Durham Ferry Rd. Tracy, CA 95304 Date: June , 2008 Attn.: Mr. Zelmer Subject: Access to Parking Lot at 7501 West Eleventh/Steeet; Tracy, California for Groundwater Remediation Dear Mr. Zelmer: �� Since 1999, the San Joaquin Company Inc. (S,1p .=. been working under the direction of the San Joaquin County Department of Environmental Health (SJCEHD) to monitor and manage groundwater affected by releases of gasoline and diesel; that occurred at Mr. Carl Navarra's property at 7500 West Eleventh Street-,in Tracy, California, located across the highway from your property at 7501 West Eleventh Stre l.,For the past several'years we have been sampling groundwater in monitoring wells that are 10aated ''on,. our property-.. At this stage of our work we have been`-directed"by.; the-SJCEHD to actively remediate groundwater affected by ,gasoline and diesel thafis locatedbeneath the southeast corner of the parking lot at 7501 Wes#�Eleventh Street and beneath the adjacent land to the south. 11 The remediation work involves eX avation of one�73-ft. long by 4-ft. wide trench from which groundwater will be pumpedp`directly'iirto-vacuum trucks and shipped off-site for disposal. At present, thereaxe..two°possible-locations for the.trench (see attached Figure 1). The trench will be excavated.either just'-dutside th es,southeast corner of the parking lot along its Eleventh Street frontage or it will be excavated throe, h-thb parking lot paving a short distance inside its curb. A final'ydecisibn regarding tlb, exact trench location will be made in the field following a detailed survey of" the,locations of: underground utilities. After working hours, or whenever the construction crew-:is not present at the site, the open trench will be enclosed within a locked, 6-ft. high, temporary `chdin-link fence. When the work is completed, the trench will be backfilled and the area returned to its present J.condition. That work''will include full restoration of the parking lot paving, including any damage that may occur due to operation of the construction equipment. The area of the parking lot that will be occupied by construction equipment and materials is shown on the Figure, but, in addition, it will be necessary for trucks to enter and leave the site via both the Chrisman Road and West Eleventh Street entrances. We expect the work, including restoration, to be completed within less than 10 days from the time the operations begin. However, for planning purposes, we must assume that it might possibly extend for a period up to one month. TELEPHONE: OAKLAND, CALIFORNIA($1 0)336.91 18 TRACY, CALIFORNIA(209)832-2910