ARCHIVED REPORTS_1989_1 - Laserfiche WebLink

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' 1.1 LOCATION ' The Corral Hollow Sanitary Landfill is located approximately 5 miles southwest of the City of Tracy in western San Joaquin County, California (see Figure 1). The site is ' accessed from Corral Hollow Road, a two-lane paved road. The site consists of an approximately 43 acre parcel within Section 18, Township 3 South, Range 5 East, ' Mount Coast Base and Meridian. The site lies within parcel 5 and 6 on page 253-03 of the San Joaquin County Assessors maps. 1.2 BACKGROUND ' The Corral Hollow Sanitary Landfill has been in operation since the mid- to late -1950's as a refuse and burn disposal site. Burning continued at the site into the mid-1970's. A ' gravel quarry was operated at this site before development as a landfill. The site was expanded between 1959 and 1965 by approximately 30 acres to include the land ' curently being used for refuse disposal. The current landfill area is located entirely on the south side of Interstate 580(Drawing 1). 1.3 PREVIOUS INVESTIGATIONS ' Several previous studies have been conducted which provide important site-specific information. In May 1970,the California Department of Resources (DWR) studied the ' hydrology and water quality at the landfill. The findings were published in a memorandum entitled Data Request for Tracy Sanitary Landfill. San Joaquin County ( ' DWR, May 20, 1970). A geologic investigation of the site was conducted in 1985 by J. H. Kleinfelder and Associates and reported in Geologic Investigation. Corral Hollow ' Sanitary Landfill, San Joaquin County (J. H. Kleinfelder and Associates, 1985). EMCON has conducted several previous studies at the site in addition to the SWAT proposal work, including a ground-water exploration program in January 1988 and a ' closure and postclosure study in February, 1988. 1 STL 9390314 3 Rev. 0 06/30/88 ' mon Associates