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Gal><fo <br /> rnia Regional Water Quality coontrol Board <br /> Central Valley Region Gray Davis <br /> Steven T.Butter,Chair Governor <br /> Winston H.Hick" Sacramento Main Office <br /> Srerrrarr for Internet Address. ,tp,/1...svmcb.eu.gov/- vc1cb5 <br /> Envlrmnnrntal 443 Routier Road,Suite A.Sacramento,Califomia 95921-3003 <br /> Protection phone(9 16)255-3000•FAX(916)255-3015 <br /> 15 February 2000 <br /> Mr.Dale Ramey,P.E. <br /> Director of Public Works <br /> City of Ripon <br /> 259 N. Wilma Ave. <br /> Ripon, California 95366 <br /> CONDITIONAL APPROVAL OF WORKPLAN, SOIL SAM OAQUIN DAN LYSIS PLAN, CITY <br /> OF RIPON WASTEWATER TREATMENT PLANT, S <br /> I have reviewed the City of Ripon Soil Sampling and Analysis Plan, prepared by Eco:Logic dated 20 <br /> January 2000. The plan was prepared to characterize soil located below the <br /> ith thwastewater <br /> following treatment <br /> ponds at the City of Ripon wastewater treatment plant. The plan is app <br /> conditions,which must be addressed before implementation of the sampling plan: <br /> It should be stated that the samples will be collected under the supervision of a Registered <br /> Engineer or Geologist. The report must be signed by a registered the laboratory,must be <br /> The sample labeling, handling, and possession until transported <br /> described. The report must include chain-of-custody documentation. <br /> • All samples must be preserved by cooling them to 4°C immediately after collection. <br /> Samples collected to characterize <br /> organic compounds must be collected in a manner <br /> • which limits headspace and the ability of the contaminant to volatilize. A core sample, collected <br /> using a drive sampler is preferred. The sample should be capped with Teflon or aluminum <br /> sheets,plastic end caps, and tape. Placing a sample into a glass jar is not acceptable. <br /> The holding time for coliform bacteria in soil is not established,however,the holding time for <br /> coliform in wastewater is six-hours; at a minimum,the samples should be delivered to the <br /> laboratory the same day the samples are collected. <br /> To proceed with this project,please address these comments <br /> priorto implpleaementing <br /> the telephone mAP and include <br /> a project schedule by 29 February 2000. If you have any questions, <br /> (916) 255-3116. <br /> TIMOTHY R. O'BRIEN <br /> Waste Discharge to Land Unit <br /> San Joaquin River Watershed <br /> cc: Mike Huggins, San Joaquin County Environmental Health Department, Stockton <br /> t <br /> Gerry LaBudde, Eco:Logic, Roseville <br /> California Environmental Protection Agency <br /> Ca Recycled Paper <br />