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Geofogica(Tecfmics Inc. N"', <br /> Shawver WP Add. Page 5 <br /> Project No. 757.2 <br /> July 28, 1999 <br /> 3.0 LABORATORY ANALYSES <br /> 3.1 Soil Analyses <br /> 1. Based on field screening observations, four soil samples from SB-1, MW-2 and MW-3 <br /> and six soil samples from SB-101 will be submitted to Sherwood Laboratories of Hilmar <br /> (State Certified Laboratory #1400) for the following analysis: <br /> • benzene, toluene, ethylbenzene and xylene (BTEX) by EPA method 8020 <br /> • methyl tertiary butyl ether(MTBE) by EPA method 8020 <br /> • gasoline range petroleum hydrocarbons (TPH-G) by EPA method 5030/8015(m) <br /> • diesel & motor oil range petroleum hydrocarbons (TEPH-D&O) by EPA method <br /> 3540/8015 (m) <br /> • cadmium, chromium, lead, nickel and zinc (5 LUFT Metals) by EPA method 6010 <br /> 2. Selected samples (i.e. capillary fringe and highly contaminated samples) will also be <br /> tested for the following: <br /> • fuel oxygenate compounds (MTBE, DIPE, ETBE, TAME and TBA) by EPA method <br /> 8260 <br /> The detection limits for these compounds are listed below. A Chain of Custody will be <br /> completed for all samples collected and tracked to ensure sample integrity. <br /> etection imus: MEX LFH-Ut ers- <br /> Metals <br /> Soil (mg/Kg <br /> 3.2 Groundwater Analyses <br /> The two soil-porewater samples from SB-101 and the monitoring well groundwater samples <br /> collected from MW-1, MW-2 and MW-3 will be submitted to Sherwood Laboratories of <br /> Hilmar(State Certified Laboratory#1400) for the following analysis: <br /> • benzene, toluene, ethylbenzene and xylene (BTEX) by EPA method 602 <br /> • gasoline range petroleum hydrocarbons (TPH-G) by EPA method 5030/8015(m) <br /> • diesel & motor oil range petroleum hydrocarbons (TEPH-D&O) by EPA method <br /> 3540/8015 (m) <br /> • cadmium, chromium, lead, nickel and zinc (5 LUFT Metals) by EPA method 6010 <br /> • the fuel oxygenate compounds (MTBE, DIPE, ETBE, TAME and TBA) by EPA method <br /> 8260 <br /> The detection limits for these compounds are listed below. A Chain of Custody will be <br /> completed for all samples collected and tracked to ensure sample integrity. <br /> etectionLimits: I BTEX I-PH-G TEPH-D, MO Ethers TBA TUFT ge—ta s <br /> ater gg — <br /> 4.0 SCHEDULE & REPORTING <br /> Geological Technics Inc. anticipates beginning fieldwork no later than 30 days after work <br /> plan approval and upon issuance of the drilling permit. The information gathered during this <br /> phase of work will be presented in a report that will include a summary of the geology as <br />