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Mr. Russ Zelmer 7060 W. Durham Ferry Rd. Tracy, CA 95304 Date: April_, 2008 Attn.: Mr. Zelmer Subject: Access to Parking Lot at 7501 West Eleventh t Tracy, California for Groundwater Remediation Dear Mr. Zelmer: ' Since 1999, the San Joaquin Company Inc. (SJR .pis been w4 ing under the C of the San Joaquin County Department of Environmental t D) to moni r and manage groundwater affected by releases of gasoline and dies t occurred at Mr. Carl Navarra's property at 7500 West Eleventh Street,� Tracy, Californ ocated across the highway from your property at 7501 West Eleventh StfEo�r. the past seve cars we have been sampling groundwater in monitoring wells that are to N, your propert . At this stage of our work we have bec� irect �i�l 5CEHD to actively remediate groundwater affected by�g � and diesels locate eneath the southeast corner of the parking lot at 7501 Wes levee treet and beath the adjacent land to the south. The remediation work t ves e ' v ation of on eft. long by 4-ft. wide trench from which groundwater will be purr e• , Te- y itoY ac trucks and shipped off-site for disposal. At present, th�ee,r�% r�,; � ossible o�ations fort ench (see attached Figure 1). The trench will be excavate�deithcr jus� ide th s-�theast corner of the parking lot along its Eleventh Street fronta it will be exc a d throat the parking lot paving a short distance inside its curb. A final de ' io regarding th act tre' location will be made in the field following a detailed survey o 'e. locations o rider round utilities. After working hours, or whenever the construction c s not pres � at the site,:the open trench will be enclosed within a locked, 6-ft. high, temporary,ch��.in-link f�CC. When the work is col ted, the trench will be backfilled and the area returned to its present condition. That workwill 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.