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� r <br /> k4 KLEINFELDER <br /> An employee awned company <br /> File No. 12280.MON <br /> May 22, 2003 <br /> 03 <br /> Mr. Michael J. Infurna <br /> 304 E. Weber Avenue Gxk Ir_ Rv�GE <br /> Third Floor E QERM <br /> Stockton, California 95202-2708 <br /> RE: Drill Cuttings, Rinse Water, and Purge Water Disposal <br /> Ozone Sparge, Soil Vapor Extraction, and Groundwater Monitoring Wells <br /> Del Monte Foods, Inc. <br /> Stockton, California <br /> Dear Mr. hifuma: <br /> The installation of the five clustered ozone sparge wells (OS-1 through OS-5) and five clustered <br /> soil vapor extraction wells (VE-1 through VE-5) at the Disco site is now complete. The ozone <br /> sparge wells and vapor extraction wells were installed in accordance with the corrective action <br /> plan prepared by Kleinfelder and approved by the San Joaquin County Environmental Health <br /> Department (EHD) titled "Corrective Action Plan, Del Monte Disco Site, Stockton, California", <br /> dated January 9, 2003. During the drilling operation drill cuttings, decontamination rinse water, <br /> and purge water were contained in 55-gallon drums and stored on the Disco site pending the <br /> laboratory analysis. <br /> Soil samples were collected during the drilling operation from the ozone sparge wells for logging <br /> purposes and possible laboratory analysis. At this time a total of fifteen soil samples were <br /> collected from various intervals of the ozone sparge wells and submitted for laboratory analysis. <br /> The soil samples were analyzed for total petroleum hydrocarbons as gasoline, benzene, toluene, <br /> ethylbenzene, and xylene, methyl tert-butyl ether, tert-amylmethyl ether, di-isopropyl ether, ethyl <br /> tert-butyl ether, tert-butyl alcohol, 1,2-dibromoethane, and 1,2-dichloroethane. There were no <br /> detectable concentrations at or above the laboratory reporting limits for the above stated analysis <br /> in the soil samples analyzed from OS-1, OS-2, OS-3, OS-4, and OS-5. Attached is a copy of the <br /> complete laboratory reports for your review. At this time Kleinfelder on Del Monte's behalf and <br /> approval would like to formally inform the EHD of the disposal of the drummed cuttings and <br /> decontamination water generated from OS-1, OS-2, OS-3, and OS-4 by spreading the cuttings <br /> and dispensing the rinse water to the ground surface at the Disco Site as discussed over the <br /> telephone. <br /> The remaining soil cuttings generated from the installation tasks of the vapor extraction wells <br /> that displays characteristics of impact due to former operations at the site will be stockpiled on <br /> 12280.MON/ST031,273 Page I of 2 <br /> ©2003 Kleinfelder,Inc. May 22,2003 <br /> KLEINFELDER 2825 East Myrtle Street, Stockton, CA 95205-4794 (209) 948-1345 (209)948-0621 fax <br />