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San Joaquin County DIRECTOR <br /> Donna Heran, REHS <br /> Environmental Health De artment <br /> ASSISTANT DIRECTOR <br /> 600 East Main Street Laurie Cotulla, REHS <br /> Stockton, California 95202-3029 PROGRAM COORDINATORS <br /> 111iL1 <br /> • Carl Borgman, REHS <br /> �• Mike Huggins, RENS, RDI <br /> %i O6'iz P Website: www.sjgov.org/ehd Margaret LLagorio, REHS <br /> Phone: (209) 468-3420 Robert McClellon, REHS <br /> Fax: (209) 464-0138 Jeff Carruesco,REHS, RDI <br /> Kasey Foley, REHS <br /> JUAN BARAJAS OCT 0 5 2007 <br /> 7194 BODEGA STREET <br /> FONTANA CA 92336 <br /> RE: Former Roy Knoll Towing <br /> 3570 E. Miner Street <br /> Stockton, CA <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed <br /> the revised "Interim Soil Remediation and Sampling Work Plan" prepared by <br /> Advanced GeoEnvironmental, dated August 30, 2007, for the above referenced <br /> site and received by EHD on September 14, 2007. The plan is for removal and <br /> appropriate disposal of about 125 cubic yards of contaminated soil and the <br /> collection of soil samples. <br /> The EHD is in agreement with the plan and provides the following comments. <br /> The stockpile samples are to be analyzed according to the disposal facility <br /> (landfill) requirements for acceptance. The EPA Method 7421 should be used for <br /> Lead analysis of the excavation soil samples and if any result is 50 milligrams per <br /> kilogram or more, then a Waste Extraction Test (WET) for Lead should be <br /> performed on the sample. The EPA Method 6010 B should be used for analysis <br /> for other metals and if any result is ten times the Soluble Threshold Limit <br /> Concentration (STLC) for the metal in the California Code of Regulations Title 22, <br /> Section 66261.24, then a WET for the metal should be performed on the sample. <br /> If any metal concentrations using the WET exceed the STLC, then further <br /> excavation and sample analysis should be performed. <br /> If you have any questions contact me at (209) 468-3449. <br /> Donna Heran, REHS, Director <br /> Environmental Health Department <br /> Margaret Lagorio, REHS <br /> Program Coordinator Unit IV <br /> AGE — Bill Little <br /> San Joaquin County District Attorney's Office— David Irey <br />