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1 <br /> S E C 0 R <br /> Mr Michael Infurna <br /> July 23, 2003 I 1 <br /> Page 2 <br /> I ,{ <br /> I <br /> SCOPE OF WORK <br /> The scope of work for this assessment will include the drilling of two borings and the installation of up <br /> to four groundwater monitoring wells at the approximate locations indicated on Figure 2 The scope <br /> of the Investigation will include I`a <br /> • collection of shallow soil and unconfined groundwater data at two proposed soil <br /> boring/temporary well locations, and I' <br /> • subsequent Installation of up to four UA or A zone monitoring wells ? <br /> � i <br /> WORK ACTIVITIES ; t' <br /> The specific work activities to be completed as part of the assessment are listed below <br /> Site Safety Plan 1 <br /> As required by the Occupational Health and Safety Administration (OSHA) Standard "Hazardous )' <br /> Waste Operations and Emergency Response" guidelines (29 CFR 1910 120), and by California <br /> Occupational Health and Safety Administration (Cal-OSHA) "Hazardous Waste Operations and <br /> . Emergency Response" guidelines (CCR Title 8, Section 5192), SECOR will prepare a Site-Specific r� <br /> Health and Safety Plan prior to starting field work The Site-Specific Health and Safety Plan will be <br /> reviewed by the staff and subcontractors before beginning field operations at the Site is <br /> Permitting € <br /> San Joaquin County — Environmental Health Division (SJC-EHD) permits for two soil borings and <br /> four groundwater monitoring wells Installation will be obtained prior to field activities <br /> r �1 <br /> Sample Analysis <br /> All soil and groundwater data collected will be analyzed for the presence and magnitude of <br /> petroleum hydrocarbons including <br /> • total petroleum hydrocarbons as gasoline (TPHg) and total petroleum hydrocarbons as <br /> diesel (TPHd) by EPA Method 8015, <br /> • benzene, toluene, ethyl benzene, and total xylene (BTEX), and, +vj <br /> • fuel oxygenates methyl tertiary butyl ether (MtBE), ethyl tertiary butyl ether (ELBE), Cert- I <br /> butanol (TBA), tertiary amyl methyl ether (TAME), di-isopropyl ether (DIPE), methanol and 6 <br /> ethanol, by EPA Method 82646, and <br /> • total lead by EPA Method 7420 ` <br /> Sod BoringlTemporary Well Installation and Sampling <br /> Two sail borings will be hand-augered by a C-57 licensed contractor or as authorized by SJCEHD at <br /> the locations shown on Figure 2 The soil boring will be advanced with a 4-inch Dutch Auger, or <br /> similar equipment The boring will be completed to approximately 10-feet bgs or to a depth where <br /> substantial groundwater yield is expected At the total depth, up to ten feet of 0 020-inch slotted well <br /> 11Chevron11001621\REPORM200312003 Site Assessment tWPRevO doc SFCOR International Incorporated <br />