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1 <br /> • Mr Jeffery Wong <br /> April 21, 1999 <br /> Page 3 <br /> Based on the results of this over-excavation and soil and soil stockpile sampling and analysis, <br /> Ramage Environmental recommends the following environmental corrective actions <br /> 1 Continue the service station construction and UST replacement activities at the site <br /> Future environmental corrective actions can be completed during and/or after the service <br /> station construction and fueling system upgrade activities <br /> 2 Prepare a work plan, which outlines a scope of work to investigate the nature and extent <br /> of any impacted soil and groundwater beneath the site The work plan should be <br /> submitted to PHS/EHD for comment and/or approval The approved work plan and <br /> scope of work should be used to solicit at least three bids so that the cost to implement <br /> the work plan can be pre-approved by the UST Cleanup Fund <br /> 3 Spread the canopy support over-excavation soil stockpile on site for passive aeration A <br /> permit to passively aerate the soil must be obtained from the San Joaquin Valley Unified <br /> Air Pollution Control District(SJVUAPCD) Based on the soil stockpile sample results, <br /> the SJVUAPCVD permit will define the volume of soil that can be passively aerated at <br /> any given time <br /> • 4 The south stockpile does not contain detectable concentrations of gasoline hydrocarbons <br /> so it should be re-used and/or spread out on site The remaining UST excavation soil <br /> stockpile should also be re-used and/or spread on site <br /> Thank you for your assistance on this project Please review these results and provide <br /> written comments and/or approval of the recommended course of corrective action If you <br /> have questions or need any additional mformatioiksplease 916) 354+3250 <br /> Sincerely, 50 — <br /> RAMAGE ENVIRONMENTAL c!'� <br /> No. $8 <br /> Joseph Ramage, R G ry� <br /> Project Geologist <br /> Attachments Figure 1, Site Plan <br /> Figure 2, Dispenser Island and Canopy Support Overexcavation Map <br /> Table 1, Analytical Results, Soil (Cumulative) <br /> Table 2, Analytical Results, Soil Stockpile (Cumulative) <br /> j Laboratory Reports <br /> CC Mr R Reed Rinehart—Rinehart Oil, Inc <br />