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t <br /> Y•� <br /> San Joaquin County DIRECTOR <br /> PAU'" C, Environmental Health Department artment Donna Heran, REHS <br /> Y � '•.0 ASSISTANT DIRECTOR <br /> r. 600 East Main Street Laurie Cotulla, REHS <br /> Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> • Carl Borgman,REHS <br /> Mike Hu <br /> ggins, REHS,RCI <br /> q<ri oRaWebsite: www.sjgay.org/ehd <br /> Margaret Lagorio, REHS <br /> Phone: (209) 468-3420 Robert McClellon, REHS <br /> Fax: (209) 464-0138 Jeff Carruesco, REHS, RDI <br /> Kasey Foley,REHS <br /> August 6, 2008 <br /> Universal Forest Products <br /> Mr. Jim Seufert REHS <br /> 2081 E. Beltline NE <br /> Grand Rapids, MI 49525 <br /> Subject: Universal Forest Products Site Code/RO#: 1588 <br /> 26200 Nowell Rd. Global ID#: T0607732095 <br /> Thornton, CA. 95686 <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed <br /> Underground Storage Tank Case Closure, dated March 21, 2008, as submitted <br /> by your consultant ICES and has the following comments. <br /> This report summarizes the site's underground storage tank (UST) removal in <br /> June 2004, the preliminary site assessment (three soil borings) conducted in <br /> March 2005, and the three monitoring well installations in February 2006. The <br /> report also included ground water analytical data from the last monitoring well <br /> sampling event in February 2008. <br /> Recent changes in site investigations now require soil vapor samples to be <br /> collected and analyzed to evaluate the residual soil contamination hazard <br /> potential to occupants of nearby buildings through vapor intrusion. Before the <br /> EHD can complete its review of the case closure document, a soil vapor intrusion <br /> investigation and hazard evaluation is required. Please submit a work plan in <br /> a timely manner that addresses this requirement. <br /> In reviewing the documents for case closure, the EHD noted the following <br /> discrepancies and will require you to submit additional information: <br /> • Notes from the UST closure state that 687 tons of soil were removed from <br /> the UST pit in June 2004, and that this soil was transported to Forward <br /> Landfill for disposal. No tracking documents could be found to support <br /> this. In addition, the EHD has tried to determine why so much soil was <br /> generated based on the dimensions of the pit and trenches. The amount <br /> noted, 687 tons, does not match calculations for the excavation <br /> dimensions listed. Was over-excavation done to remove the <br /> contaminated soil in the pit sidewalls as noted in the removal notes? <br /> 26200 Nowell NFAR deny CML 8-6-08.doc <br />