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APR-29-94 THU 17:03 CONDOR EARTH TECH FAX NO, 2095320Y73 ill ur <br /> WORK PLAN <br /> pp'FNTIALLY CONTAMINATED SOMS <br /> SLILANCRO ROCK SAX0, INC_ QUARRY RECLAMATION <br /> PAGE a <br /> 3.3 Field Screening <br /> oar►tarrtirtated soil .will 5e conducted to assist in <br /> Field screening of the p�atwly <br /> evaluating the limits of any potwtdal contamination, for any 'Type I Contamination" <br /> encountered. Screening muds will consist of-. <br /> • Visual inspection for evidence of hydrocarbon or other staining_ <br /> • dead space analyses using field detection equipment (Organic Vapor Analyzer <br /> OVA-FII? and/or PID) and/or Drager Tubes- <br /> Calibration records will be m,aii%tained for all field screening equipment. Detailed field <br /> notes and records will be maintained, Photographs and videotape togs will be <br /> maintained, <br /> 3.4 Sampling and Excavation <br /> Samples will be collected from those areas of potential "Type I Contamination" which <br /> indicate the highest field s+creenbg results_ These samples will be collected and prepared <br /> for immediate laboratory analysis, to determine if actual contamination exists, i.e_, if the <br /> sample collected can be classified as a hazardous waste or hamdous material as defined <br /> by California law. While awaiting return of sample results, the contaminated soil will <br /> be covered, and left in-situ protected from volatilization. <br /> Results of the preliminary characterization, along with Condor's specific <br /> recommendations on how to proceed, will be submitted to the Department of <br /> Environmental Health. Further sampling, excavation, stockpiling or disposal related to <br /> 'Type I Contamination' will. not procced without approval of the Department of <br /> Environmental Health. It is anticipated, however, that the following procedures will <br /> apply: <br /> If the material is classified as hazardous, it will be treated as such- Field <br /> screening will be used to define the limits of soil contamination. The <br /> contaminated soil will be excavated, stockpiled, covered, and protected from <br /> volatilization. Soil samples will be collected from the floor andlor sidewalls of <br /> the excavation for laboratory analysis. These samples will be used to verify that <br /> potentially contaminated soils do not extent beyond the limits of the excavation. <br /> The number of soil samples collected from each excavation will depend on the <br /> overall size of the excavation.. The samples will be collected in clean brass tubes, <br /> capped, sealed with Teflon tape, wrapped with duct tape, labeled, and <br /> immediately place in a cooler chilled with "blue ice", for delivery under Chain- <br /> of-Custody procedure to GeoArtalytical Laboratories in Modesto, California. <br /> *� comom <br />