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' 03 September 2002 <br /> AGE-NC Project No 99-0624 <br /> Page 3 of 4 <br />' 3.0. FIELD PROCEDURES <br /> All field procedures will be overseen by an AGE representative under the supervision of a California <br />' Registered Geologist Procedures for soil borings, well installations and well development are <br /> described below <br />' 3 1 DRILLING AND SAMPLING <br /> Two soil borings for installation of ground water monitoring wells MW-5 and MW-6 will be <br /> advanced to depths of 65 feet bsg utilizing a track-mounted, hollow-stem drill ng and 8-inch <br /> diameter hollow-stem augers, one soil bonngs for installation of ground water monitoring well <br /> MW-7 will be advanced to 90 feet bsg utilizing 8-mch diameter hollow-stem augers Soil cuttings <br /> and rinseate generated during drilling activities will be containerized in properly labeled DOT- <br /> approved 55-gallon drums,and stored on-site in an area lacking public access Disposal alternatives <br /> for rinseate and stockpiled soil will be selected based on results of a laboratory analysis <br />' . Sol] samples will be collected at five-foot intervals, beginning at a depth of 15 feet bsg for logging <br /> purposes, selected soil samples will be analyzed by a State of California Department of Health <br /> Services (DHS)-certified laboratory for the following constituents <br />' 0 Total petroleum hydrocarbons quantified as gasoline (TPH-g) in accordance with EPA <br /> Methods 8015 Modified/5030/3550, <br />' 0 Benzene, toluene, ethylbenzene and xylenes (BTEX),methyl tert-butyl ether(MTBE), 1,2-- <br /> dichloroethane(1,2-DCA),ethylene dibromide(EDB),tertiarybutanol(TBA),di-isopropyl <br />' ether (DIPE), ethyl tert butyl ether (ETBE) and tert amyl methyl ether (TAME) by EPA <br /> Method 8260 Modified <br />' In addition, selected soil samples will be analyzed by a microbiological laboratory for microbial <br /> enumeration and physicochemical characteristics, selected soil samples may also be analyzed for <br /> intrinsic permeability,moisture content,porosity and total organic carbon(TOC)in accordance with <br />' the appropriate EPA or ASTM methods Laboratory reports for soil analysis sample chain of custody <br /> documentation will be presented in a report with findings and recommendations <br />' Laboratory reports for soil/ground water analysis, testing methods, laboratory quality <br /> assurance/quality control (QA/QC) reports, and sample chain of custody documentation will be <br /> presented in a report with findings and recommendations <br /> Advanced GeoEnvironmentai,Inc <br /> I <br />