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Wo�pb�•� A?r\y al . <br /> From: Amy Terrell [mailto:aterrell@waterboards.ca.gov] <br /> Sent: Friday, March 18, 2011 3:59 PM <br /> To: Matt Scheeline <br /> Subject: Re: Data Gap Workplan for Deere Stockton Site <br /> Mr. Scheeline, <br /> Thank you for providing the 18 March 2011 Data Gap Soil Investigation Workplan (Work Plan) <br /> prepared by ERM for the former Lesco facility at 2829 West Washington Blvd., in the Port of <br /> Stockton. As described in the Work Plan, John Deere Landscapes, who purchased the Lesco <br /> facility, has removed the Dry Bulk Storage Warehouse building and the concrete pad at the <br /> former Liquid Tank Farm. As you and Mr. Brod discussed with California Regional Water <br /> Quality Control Board, Central Valley Region (Central Valley Water Board) staff in our 12 <br /> November 2010 meeting, the removal of the building and containment pad facilitates the <br /> aquisition of soil samples that are expected to fill the data gaps in contaminant distribution. <br /> Central Valley Water Board staff concur with the workplan. Please add analyses for sulfate to <br /> all proposed samples numbered SB-42 through SB-52. Sulfur has been identified in almost all <br /> previously obtained soil samples at the facility. Proposed samples SB-42 through SB-52 are <br /> situated in the eastern half of the facility, where groundwater concentrations of sulfate have <br /> been greatest. The objective is to estimate the extent to which sulfate found in groundwater <br /> may have originated from historical site activities. A sulfur handling facility is adjacent to the <br /> east. <br /> In the Work Plan, ERM proposes to initiate investigation at the end of March 2011, and provide <br /> report of results about 9 weeks later. We look forward to seeing the results by 10 June 2011. <br /> John Deere Landscapes proposes to follow up with a Corrective Action Plan within two months <br /> of the release of the Report of Results. <br /> For convenience, the work plan is attached. <br /> If you have any questions, you may contact me by telephone at(916) 464-4680, or by email at <br /> aterrel I @waterboa rds.ca.gov. <br /> Thanks <br /> Amy Terrell <br /> (916) 464-4680 <br /> >>> Matt Scheeline <Matt.Scheeline@erm.com> 3/18/2011 10:34 AM >>> <br /> Amy— <br /> Attached is the Data gap Soil Investigation Workplan for the John Deere Landscapes/Former <br /> LESCO Facility in Stockton, CA. Please let us know if you have any questions or comments <br /> regarding the proposed work. The fieldwork is scheduled to begin March 291". <br /> Thank you. <br />