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23 March 2006- 3 <br /> 3 <br />- AGE-NC-ProjectNo. 61'-0887 <br /> Page'2 of 5 t <br /> 2.1.' PERMITTING AND PRE FIELD WORK ACTIVITIES <br /> Applicable site assessnient-pernii,&= ill be obtained from-the_ D:_n addition;an update to tfie#site . <br /> health and safety plan presently on_f le will'be prepared in-accordance witl Occupational Safety and:.,,� <br /> Health Guidance Manual for Hazardous--Waste SdE4etivities.,(N-kional Institute-for Occupational : . <br /> Safety and Health Administration;U.S..Coast Guard and U.S.:Environmental Protection Agency, <br /> 1'985). Prior to mobilization, the proposed_-well locations:.will,be clearly marked and a ut�hty- <br /> Clearance obtained through Underground Service Alert: - <br /> _ 2.2: DRILLING AN_D SOIL SAMPLE_COLLECTI_ON <br /> AGE-proposes: to.-advance.five=:pilot soil.borings:_(MW-5 through MW-9) .at+the site For the `. <br /> -` installation of ground Watefrnonitoring wells__Using a CME-75HT truck.mounted drill rig equipped" <br /> .:, <br /> with 8.25-incl hollow=ste:m augers;pilot boxings MW'5 through 1VIV�7 8=will be advanced to.a depth <br /> of 35 feet bsg to:assess the lateral extentb 'petroleum liydrocar_bon-impacted ground-water m.HU2 <br /> Pilot borin MW.'9 will be-advanced to a de th.of 60_7feet bsg-to-mori tSimiinpacted ground water in­ . .. .. <br /> - the upper sand .unit of HU4 The total `depth of each well: boring may 'vary according to <br /> geologic/hydrogeologiccondltions-encountered durmgfdrilling=Pilot'boririg§MW-S flirough,MW 8 <br /> - - = will be:advanced near the existin' :�shallow.monitoriri wells MW-'.1 through_MW-4;•'. ilot-borin <br /> g g. - P g <br /> MW-9 will be advanced near MW=Land-corie-penetrometer test-boring'CPT=2. Proposed locations^ . - <br /> _� -of the.groundwater monitoring wells are illustrated ori Figure 2 - F <br /> z Selected soil samples'may-be d'o <br /> analyzed basen need for soil'assessment.and the limits of current <br /> soil contamination or other need for=geochetnical evaluation by a State of Califarma:Departrrient of; <br /> - = Health Services (DHS)=certified a�aiatory forahe following cons#ituenfs: <br /> Total petroleum Hydrocarbons u-6hhfied as <br /> _ m'accordance with::EPA . <br /> —gasolme (TPg) <br /> , <br /> = Method 8015M, <br /> 4 and total x Benzene, toluene, eth lbenzene, lenes (BTEXy), fuel additives tiertrary'liutl = <br /> - alcohol (TBA);_di=isopropyl ether-(DIPS), ethyl tertiary-butyl ether.(ETBE),-tertiary,amyl <br /> -_ =methyl ether (T.-A1VIE), and methyl tertiary butyl ether (MTBE),'and lea& cavengers 1,2 <br /> _ _= dibronnoethane-(EDB)anti 1-,2 dichloroethane(1,2 DCA) in accordance with.EPA Method <br />_ <br /> - = 826OB _ _ _ '- _ - = <br /> Laboratory reports o£sail analysis; testing meth_ods;,laboratory quality assurance/quality contiolr. <br /> (QA/QC)_reports; and_sample chain of•custody documentation will N! preserite'dfin'a report of <br /> findings and recommendations <br /> ft <br /> rr - <br /> _ - - Advancear eO Vironmental,locr <br /> _ z =' <br />