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19 October 2007 <br /> AGE:NC Project No.95-0144 <br /> Page 2 of 6 <br /> 2.1. PERMITTING'AND PRE-FIELD VORK.A.CTIVITMS <br /> Applicablesite assessment permits-will be obtaiined.from the EHI]: Irk-addition,an update to the <br /> huft and safetyplan.presently oto--file-will be prepared in accordancewith Occupational Safety and <br /> Health Guidance Manual for Hazardous Waite Site Activities(National Institute for 0ccupati�al <br /> Safety and-Health AdrniWstration,V S:east Guard and U.S.Environmental Protection Agericy, <br /> 1985}, Prior to .mobilization, the monitoring well location will be clearly marked and a utility <br /> clearance obtained through Underground.Service Alert:- <br /> 2.2. DRILLING <br /> AGE proposes to install five,.shallow screened ground water_monitoring wells at the site <br /> apimox-mmtely;4a feet southeast,55 feet east,70 feet..east-northeast,65 to 70 feet northeast and 60 <br /> to.-70 feet Borth-northeast ofweRMW4(Figure 2).'Based on a`water table level cwTtly at 67 feet <br /> bsg,.the borings for the proposed ground water monitoring wells will be advanced to approxinvitely <br /> 85 feet.bsg; the total depth of the boring may vary according tQhydrogeologic conditions <br /> encounteredduridrilling. Procedures for soil boringand sampling,are"discussed in Sections 4.1 <br /> and.4.2: <br /> 2.3., MONITORING WELL COMPLET.ON,DEVELOPMENT, AND SURVEY <br /> The bodings will:be completed as t wo-inch-diamete�grownd watamonitoring'Well screened between <br /> 65 and 95 feet bsg:Following well cvmpletiot►,the wells will be developed to maximize water flow <br /> a the,amount.of fines'grained sediment drawn into the well during pumping or bailing. <br /> In action,the nwhitaing wells will be.sn"yed by a licensed professional relative to a County of <br /> San Joatldin b6chdiark to°dine:the elevation of:she casing head. Procedures for well <br /> completion and-developinent and survey ate presented in Sections 4.3. and 4A.,respectively. <br /> 1.4; ,. GROUND.NATER=SAMPLE COLLECTION AND ANALYSIS <br /> Gteuw wat r monitoring and sampling activ dea for the-newly i U."giowd water monitoring <br /> w ell wil'be cvnd.beted on a.g fly,basis unless an alternate schedue.or suspension ofmcm tdring <br /> is;; bye the EIID.-Ground water;monitoring Activities will, include recording-the 4LVth to' <br /> twund vmter aad-cotiecting- and-water semples;grfliMd.Water sample-collection procedures are <br /> described in..Sectio>;4.6.3. <br />