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ICF KRIS <br /> e FNVIRONMENT&ENERGY GROUP <br /> H 1L <br /> ICF Kaiser Engineers,Inca '`-s:" ` E��y�JC <br /> 11290 Point East Drive,Suite 200 i <br /> Rancho Cordova, CA 95742 96 . N 1 ,5 <br /> 916/852-3700 Fax 916/852-3777 <br /> April 10, 1996 <br /> Ms, Mary Meays, R.E.H.S. <br /> San Joaquin County Public Health :Services <br /> Environmental Health Division- <br /> P.O. Box 2009 <br /> Stockton, California 95201-2009 <br /> Subject:. Revisions to the Soil Disposal Workplan For <br /> Soil Stockpiled at.1.320 West Weber'Street -' Former Union'Ice Facility <br /> 425 North.Union Street, Stockton California - Site Code 241434 <br /> Dear.Ms. Meays: <br /> 4 <br /> On behalf of the Union.lce Limited Partnership.,:We hereby propose to modify our previously <br /> _submitted Revised,Soil Remediation Workplan dated January 11, 1996.. Our revised soil <br /> removal ,plans for the.subject site are submitted:in response to our discussions with you and <br /> "George Lockwood of the-Tank Fund. We-now propose to dispose of only the soil hotspot <br /> (i.e., the soil proposed for remediation,in.our original workplan dated December 22; 1995 with <br /> TPH-d detected at 5,500 mg/kg and TPH-o detected at 1.1,000 .mg/kg). We believe this <br /> proposed limited soil removal-action will be protective of public health, safety, the <br /> environment, and 'beneficial water uses. <br /> By disposing of only the'hotspot, the mean T:PH-d concentration of the soil stockpile is <br /> lowered to only about 49 mg/kg (n=19.samples), down from a mean of 322 mg/kg (n=20 <br /> samples) if the hotspot'were left -at the site. The 49 mg/kg mean concentration is well:below <br /> the unofficial 100 mg/kg of:TPH-d criteria from the leaching potential analysis (LUFT, 1989). <br /> Please feel free to contact either of the undersigned with any questions or comments <br /> regarding this revision. <br /> Sincerely, . <br /> John M. Farr, .Ph..D., P.E. Walter Floyd, R.G. <br /> Chief Engineer Project Geologist <br /> f- <br /> cc: Mr. G. Brent.Larson, The Union Ice Company <br /> r. Mr. Jeffrey S. Lawson, Reed, Elliot, Creech & Roth <br /> Elizabeth Thayer, CVRWQCB <br /> s <br />