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`■/ California Regional Water Quality Control Board <br /> Terry Tamminen Central Valley Region <br /> Secretaryfor Arnold Schwaaenegger <br /> Environmental 3443 Routier Road,Suite A,Sacramento,California 95827-3A,,(,,-, -. .-- Governor <br /> Protection (916)255-3000•Fax(916)255-3015 I� ,1 : ., <br /> htm://w v.swrcb.ca.eoy/rwacb5 �/ -- <br /> NOV 2 0 2003 <br /> 17 November 2003 <br /> ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> Mr. David Lieb Mr. Dan McGrade <br /> Environmental Manager Director <br /> Marley Cooling Technologies SPX Corporation Environmental Health& Safety <br /> 200 North Wagner Avenue 13515 Ballantyne Corporate Place <br /> Stockton, CA 95215 Charlotte,NC 28277 <br /> DRAFT SOIL SAMPLING AND ANALYTICAL TESTING PROGRAM WORKPLAN FOR <br /> THE FORMER RETORT PIT AREA, MARLEY COOLING TOWER FACILITY, <br /> STOCKTON, CALIFORNIA <br /> The Regional Water Quality Control Board(RWQCB) staff have reviewed the (a) subject <br /> workplan dated 15 October 2003 and(b) Response to RWQCB staff verbal comments on the <br /> workplan dated 10 November 2003. The subject report and the response comments were both <br /> prepared by MWH Americas, Inc. and submitted on behalf of SPX Corporation. <br /> The purpose of this workplan is to collect soil samples from beneath the former retort pit to <br /> evaluate if soils are a current or potential source of arsenic, copper, or chromium to groundwater. <br /> Four angle soil borings are proposed to be drilled directly under the retort pit. Five vertical <br /> (conventional) soil borings are proposed to be drilled surrounding the retort pit area. Soil <br /> samples from all borings will be collected at 20, 40, and 60 feet below ground surface to assess <br /> the vertical distribution of total and leachable constituents. Collected soil samples will be <br /> submitted for total and deionized water extractable concentrations of arsenic, copper and <br /> chromium. Following completion of the field and laboratory work, a report will be submitted. <br /> The RWQCB comments on the workplan have been adequately addressed. Please proceed with <br /> implementation of the workplan. We look forward to reviewing the investigation results and <br /> data evaluation. <br /> Sudhakar Talanki, P.E. <br /> Water Resources Control Engineer <br /> cc: Mr. Emmanuel Mensah,DTSC, Sacramento <br /> Mr. Harlin Knoll, San Joaquin County Environmental Health Division, Stockton <br /> Mr. Jeffrey Bold, MWH Americas, Inc., Sacramento <br /> California Environmental Protection Agency <br /> cps Recycled Paper <br />