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San Joaquin County Community Project Description Development Department Project Site Location and Existing Conditions Project Site Location The proposed project is located in southwest San Joaquin County, south of the city of Tracy and northeast of the intersection of Interstates 5 and 580(I-5 and I- 580)(Township 3 South,Range 6 East, Section 5)(Figure 2-1). The 217.5-acre site is bounded by SR 132Nernalis Road/Ohm Road on the north,Koster Road on the east,Blewett Road and the Hetch Hetchey Aqueduct on the south,and the Delta Mendota Canal on the southwest(Figure 2-2). The site is located directly on and visible from SR 132. Access to the site is available from paved county roads,primarily off Koster Road. Ohm Road provides access to the site from Koster Road off of SR 132Nernalis Road (Figure 2-2). Existing Site Conditions The project site is relatively flat, with elevations varying from 180 feet on the southwest to 150 feet at the northeastern corner. A PG&E natural gas pipeline crosses the southern portion of the site,and a water pipeline crosses the northern portion of the site. The site is serviced by existing electrical power, domestic water(wells), and communications lines. The site is classified as Prime Farmland(DOC 2001). The site is located on five parcels zoned AG-40(General Agriculture)and designated A/G (General Agriculture) in the County General Plan(Figure 2-3). The site has been graded for agricultural use,and the majority of the site is currently in agricultural use as an almond orchard. Depth to groundwater is estimated as 70-95 feet below the existing ground level, depending on site topography. Groundwater is anticipated to be encountered at depths below approximately 75 feet above mean sea level(AMSL). One single-family residence with an attached equipment building is located on the site and currently serves as the residence for the ranch foreman(Figure 2-2). The residence will be converted to an administration and site security office for the life of the proposed project operation. Existing water use for agricultural operations consists of a base allotment of 3.1 acre-feet per acre(or 710 acre-feet for the 229 acres farmed)from the Delta- Mendota Canal through Del Puerto Water District(Thoming pers. comm.). This quantity is adjusted annually based on projected supplies, and in 2004-2005 the site owner reported the adjustment rate to be 70%,resulting in a supply of 497 acre-feet. The current adjustment rate was reported to be 75%, resulting in a supply of 532 acre-feet. The site owner will assign water rights to the quarry use and the Applicant will pay a prorated share of the utility bill. DeSilva Gates Quarry Project Draft Environmental Impact Report 23 AS 05105.05