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6G'Ol'gica(Technics inc. • • Page 3 <br /> Fonzia Corporation <br /> Project No. 774.2 <br /> March 1, 1999 <br /> ' contaminant concentration in the screening information will be used to determine is <br /> additional samples should be tested. <br /> The following characteristics will be noted in the screening process: <br /> • sediment type, especially grain size and clay content <br /> • moisture content <br /> • visible evidence of contamination, i.e., color change due to reduction of iron or <br /> discoloration from hydrocarbons and other pollutants <br /> • readings above background on a organic vapor meter(OVM) <br /> The OVM is a portable photo ionization detector that uses a 10.0 eV lamp to detect <br /> compounds with ionization potential below 10.0 eV (hydrocarbon range). A boring log <br /> providing sediment description using the USCS and field observations will be maintained by <br /> ' a professional geologist working under the supervision of a registered geologist. <br /> 2.2 Groundwater Sample Collection <br /> ' Upon reaching the capillary fringe a hydropunch type sampling tool will be advanced into the <br /> groundwater and a groundwater sample will be collected from each borehole. The samples <br /> are collected in a mini stainless steel bailer and gently transferred into 1-liter amber glass <br /> bottles. The bottles are capped, inverted, tapped, and checked for headspace bubbles. The <br /> bottles will be labeled and placed in a cooler at 4° Celsius for transport to the laboratory <br /> following Chain of Custody protocol. <br /> ' Clean surgical gloves are worn at all times in handling of the sample and sampling <br /> equipment. The bailer is washed in an Alconox solution and rinsed with clean tap water <br /> between used. <br /> 2.3 Laboratory Analyses <br /> Soil <br /> Two to four soil samples from each borehole will be submitted to Sherwood Laboratories of <br /> Hilmar (State Certified Laboratory 41400). They will be analyzed for total extractable <br /> petroleum hydrocarbons as diesel, kerosene, motor and dielectric oils (TEPH-D, MO, DEO) <br /> by EPA method 3540/8015 (m). The detection limits for these compounds are listed below. <br /> A Chain of Custody will be completed for all samples collected and tracked to ensure sample <br /> integrity. <br /> etectionLimits: TEPH-D, MO, DEO <br /> Soil mg g) <br /> ' Water <br /> One groundwater sample from each borehole will be submitted to Sherwood Laboratories of <br /> Hilmar (State Certified Laboratory 41400). They will be analyzed for total extractable <br /> ' petroleum hydrocarbons as diesel, kerosene, motor and dielectric oils (TEPH-D, MO, DEO) <br /> by EPA method 3510/8015 (m). The detection limits for these compounds are listed below. <br /> A Chain of Custody will be completed for all samples collected and tracked to ensure sample <br /> integrity. <br /> ' etectionLimits: - MD—, DEO <br /> Water µg <br />