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��,U VE9 1 020 ZZIMUMEN west of the subject property at 105 West Harding Way in 1935, and 101 West Harding Way in 1940. A filling/service station was identified east of the subject property from 1955 through 1984 at 45 East Harding Way. A dry cleaner was located at 34 East Harding Way in 1940, and Cannon Cleaners(discussed above)was located at various locations upgradient of the subject property since 1940 to the present. These facilities are RECs based on the proximity and lengthy time periods they have been located in the vicinity of the subject property. Based on the above information, Bureau Veritas recommended an LSI be performed at the subject property to assess the potential for impact from the RECs to include the collection and analysis of soil, soil vapor and/or groundwater samples for laboratory analysis of appropriate indicator parameters. 2.0 SCOPE OF WORK The scope of work consisted of advancing six soil borings to collect soil,grab-groundwater and soil vapor samples for potential laboratory analysis and to evaluate potential soil vapor impacts to the subject property. Bureau Veritas completed the following scope of work as part of this LSI: • Task 1: Conducted pre-field activities including submitting a drilling application with fees and a workplan to San Joaquin County Environmental Health Department(SJCEHD)and obtained the required drilling permit; • Task 2: Conducted a geophysical survey to evaluate if possible USTs and/or hydraulic lifts remained on the subject property and collected soil, grab-groundwater, and soil vapor samples from six soil borings advanced at the subject property; • Task 3: Submitted grab-groundwater, soil and soil vapor samples to accredited laboratories for analytical testing; • Task 4: Prepared a report of findings. 2.1 Pre-Field Activities Bureau Veritas prepared a drilling permit application for the SJCEHD that included a workplan, payment of fees, identifying the drilling subcontractor with proof of insurance, and obtaining written authorization from the subject property owner to drill on the subject property. Upon obtaining an approved drilling permit, Bureau Veritas scheduled the drilling date, providing 48 hour notice, as required. An approved copy of the drilling permit is presented as Appendix A. Bureau Veritas completed a Site Health and Safety Plan(SHSP)for the work proposed at the subject property in accordance with the requirements of the State of California General Industry Safety Order (GISO)5192 and Title 29 of the Code of Federal Regulations,Section 1910.120(29 CFR 1910.120). A copy of the SHSP was kept onsite during field activities. The SHSP detailed the work to be performed, safety precautions, emergency response procedures, nearest hospital information, and onsite personnel responsible for managing emergency situations. On November 11, 2008, Bureau Veritas marked proposed boring locations in white paint and contacted Underground Service Alert of Northern California(USAN)to clear public utilities. USAN issued Ticket Number 588206 for the proposed subsurface work. On November 11, 2008, NORCAL Geophysical Consultants, Inc., (NORCAL), of Cotati, California, a professional utility locating service, cleared the six soil boring locations of underground utilities where subsurface work was proposed. The locations of the proposed soil borings were all adjusted in the field to clear identified underground utilities during the utility clearance activities; however,this did not compromise the proposed sampling plan. 2 Project Number 99008-008321.03