FIELD DOCUMENTS - Laserfiche WebLink

Home Browse Search

' Emergency Remediation - 2480 Tracy Blvd., Tracy, CA. • Page 2 BACKGROUND ' In early March of 1996 the structures and appurtenances of a car wash located at 2480 Tracy Boulevard in Tracy, California were demolished preparatory to construction of a new car-wash and lubrication-services facility for Mr. Rudy A. Sanchez, the property owner. The new facility will do business as the Tracy Express Wash& Lube. ' Site Location The location of the subject site is shown on Figure 1. It fronts, along its western side, ' onto Tracy Boulevard. On the northern boundary, it adjoins the parking lot of a retail and commercial complex. The adjacent property to the south includes a site presently occupied by Tracy Automart, a used car dealer. A Chevron gas station previously operated at the ' latter location, which has the address 575 West Grant Line Road. Prior Uses of the Site and Surrounding Land ' Immediately prior to construction of the original car-wash facility at the 2480 Tracy Boulevard address in 1980, the property was vacant and had been since approximately 1975. Based on interviews with local residents and a review of available aerial photographs, from at least 1940 through to 1963, or later, the property was occupied by a small ranch building and corral. Except for a residence and a baseball field that had been developed to the south by 1952, all of the surrounding land remained under pasture until 1975, when urban development encroached into the area. No underground fuel storage ' tanks are present on the 2480 Tracy Boulevard property and none were located there in the past. ' The former site of the Chevron station is up the groundwater gradient from the subject property and is under the oversight of the San Joaquin Public Health Services, Environmental Health Division (SJCPHS) as the location of an unauthorized release of fuel hydrocarbons. The SJCPHS has assigned the 575 West Grant Line Road property Site Code 1408. The relative locations of the subject property at 2480 Tracy Boulevard and the site at 575 West Grant Line Road are shown on Figure 2. DISCOVERY OF CONTAMINATED SOIL AND GROUNDWATER ' On April 2, 1996, groundwater contaminated by what appeared to be gasoline flowed into trenches that were dug to install a dewatering system designed to prevent flooding of the basement of the new car-wash and lubrication-service facility. With the basement ' dewatering system complete, including installation of a sump equipped with a submersible pump, but before excavation work to construct the basement structure was continued, the general construction contractor notified Mr. Sanchez that contaminated soil and groundwater had been found beneath the site.