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CA <br /> 1117 Lone Palm Avenue, Suite B <br /> J Modesto95351 <br /> vdCalifornia ww.atc-enviro.com <br /> o.com <br /> 209.579.2221 <br /> Fax 209.579.2225 <br /> July 20, 200010 <br /> 54.25500.0001 <br /> JUL 2 12000 <br /> Mr. Ron Rowe ENVIRONMENT HEALTH <br /> San Joaquin County Public Health PERMIT/SERVICES <br /> Services, Environmental Health Division <br /> 304 E. Weber Street, Third Floor <br /> Stockton, CA 95202 <br /> Subject: Summary of Destruction of Drywells at Former Wood Fiber Products Facility, <br /> 12686 Locke Road, Lockeford, California <br /> Dear Mr. Rowe: <br /> On behalf of Sanwa Bank California, ATC Associates Inc. has prepared this summary report <br /> describing the drywell destruction activities at the above referenced site. The scope of work <br /> included overdrilling four drywells, soil sampling, and backfilling the borings. Field activities <br /> are described in detail in the following paragraphs. <br /> SITE LOCATION <br /> The site is located on the south side of Locke Road and west of Highway 12 in Lockeford, <br /> California, as shown on Figure 1. The location is primarily a commercial and agricultural area. <br /> The site is currently unoccupied, but is patrolled by a security company. <br /> BACKGROUND <br /> The site was formerly occupied by a wood fiber products facility. There are several buildings on <br /> site including one west of the drywells and two north of the drywells. The drywells are located <br /> in a pond area used to collect surface water runoff from the site (Figure 2). Soil samples have <br /> previously been collected from the bottom of each drywell by AMES and were analyzed for <br /> petroleum hydrocarbons and metals. The samples from the wells contained low concentrations <br /> of toluene and total petroleum hydrocarbons as gasoline (TPHg). <br /> METHODS AND PROCEDURES <br /> All work described in this report was completed in accordance with ATC's Workplan for <br /> Destruction ofDrywells at Former Wood Fiber Products Facility, 12686 Locke Road, Lockeford, <br /> w:\wordpm\25500\sum.doc I <br />