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Johnson International <br /> September 21, 1999 <br /> Page 2 <br /> KNOWN AREA ENVIRONMENTAL CONDITIONS <br /> Environmental sampling and monitoring by others have revealed relatively low concentrations of <br /> the Volatile Organic Compounds (VOCs) in groundwater within the immediate vicinity of the <br /> subject property. We understand that the limits of these contaminants in groundwater has not been <br /> fully determined. <br /> PROPOSED EVIRONMENTAL WORK <br /> Our firm plans to perform two exploratory drillings in the southwesterly and central portion of <br /> the property for environmental evaluation purposes. Prior to exploratory activities, Underground <br /> Service Alert will be notified and the necessary drilling permitting would be obtained through <br /> the San Joaquin County Public Heath Services Department. <br /> The drilling will be performed by a California-licensed drilling contractor utilizing truck- <br /> mounted GeoProbe direct push equipment. The approximate 1.5" borings will extend to <br /> maximum depths on the order of 10 to 15 feet and engage groundwater. One "grab" groundwater <br /> sample will be obtained from each boring. No auger cuttings will be generated. The borings <br /> will be backfilled with neat cement grout to the surface. All field operations will be supervised <br /> by an experienced Geologist from this office. Drilling and sampling equipment will be <br /> thoroughly cleansed with an Alconox or equivalent cleansing solution prior each sampling event. <br /> The groundwater samples will be logged into a chain-of-custody form and transported to a <br /> California certified laboratory for analysis. Each soil sample will maintained on ice (4°Celsius) <br /> after sampling and during transport to the laboratory. Laboratory personnel indicate all samples are <br /> held in a refrigeration unit at 4° Celsius. The groundwater samples will be analyzed for Volatile <br /> Organic Priority Pollutants. <br /> SITE SAFETY MEASURES <br /> SITE MANAGER <br /> Our field geologist will be responsible for the implementation of this Health and Safety Plan. Our <br /> field geologist will keep a record of site activities and will control access of the primary work zone. <br /> TRAINING CERTIFICATION <br /> Our field geologist is currently certified for Hazardous Waste Site Operations training received in <br /> accord with 29 CFR 1910.120. Subcontractors are responsible for similar certification. <br />