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` Mr Mark Gilmartin,Attorney September 24, 1998 Montgomery Ward Auto Center,Stockton CA Page 2 . Project Understanding The purpose of this scope of work will be to install,operate,and monitor a soil vapor extraction and groundwater air spargtng remediation system that will reduce the petroleum hydrocarbon levels to achieve MCLS PHS-EHD will measure against the highest contaminant level recorded from groundwater sampling events Quarterly monitoring reports,that will include both remediation progress data and summary and groundwater monitoring data,will document the status of the clean-up and, ultimately, substantiate rationale for site closure Because the system is operating in the San Joaquin Valley Unified Air Pollution Control District (APCD), a start-up report will be required within 60 days of initial start-tip, with weekly sampling and quarterly repoits thereafter Cost Savings There is an opportunity to reduce the weekly monitoring requirements by demonstrating the system's effectiveness in destroying hydrocarbons through efficiency rate documentation and proper operation and maintenance records Site histol y Between August 1986 and June 1988 all known USTs were removed from the Montgomery Ward Auto Center, which was formerly a Unocal retail service station The soil and groundwater petroleum hydrocarbon contamination was delineated between 1996 and 1997 In January 1998 EAI submitted an Interim CAP to address soil remediation requested by the PNS-EHD In March 1998 the PHS-EHD also requested groundwater contamination to be addressed The CAP completed in July 1998 concluded that the site contamination could best be remediated by a combination soil vapor extraction and groundwater air sparging remediation system WORKSCOPE Please note that unless specifically stated in our workscope, or if site conditions/your client warrant a change in the wort.approach, Fluor Daniel GTI will adhere to the EAI's July, 1998 CAP Schedule (Figure 1) Our schedule, directly following the letter, depicts the tasks and timeframe required for the installation of the soil and groundwater remediation system This schedule assumes a Notice-to-Proceed of September 30, 1998, with the on-site construction and system start-up to be completed on or before January 30, 1998 In San Joaquin County,the permit to construct(which is issued from the APCD)typically takes 60 to 90 days to obtain Fluor Daniel GTI intends to have all the subsurface and utility work completed and the equipment ordered before the permit to construct Is issued This should allow system start-up before January 30, 1999 Task 1 Health and Safety Plan Preparation Fluor Daniel GTI will prepare or modify the existing site-specific health and safety plan to comply with 29 CFR 1910 120 and address installation remediation system workscope At a minimum, our field personnel wil l have completed a 40-hour OSHA Training, and have a current 8-hour Refresher Course Certificate Fluor Daniel GTI recently completed over 5 million work hours without a lost time mcident—a credit to our safety commitment and ongoing employee training programs This statistic translates into Fluor Daniel GTI being 47 times"more safe"than the average environmental consulting company • MGWCAP5O WPb FLUOR DANIEL GTI 90 2