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SnT BY:DnVFR �5- 1-95 : 15;28 : ftES Fax# 510/803-7902 ;A Vio possibly two samples fer borehole; however, the A fsmn= Team Leader has the discretion to sample other latero s baacd on field observarim Laboratory analyses w II potentially include those etas lidenffiM in Table 2. The most .^ommon parameters tuo anticipated to include, volktile organic compounds (VOCs) Method 8240, total petroleum f ydrocarbous (TPM Mothod 4 8.1 or 8015, and metals(Cr and Pb) 70110 Series Method. Other arametem will be idemiflod h sed on lafonnation obtained at the faCtility and/or per Stale eats, e.g., analysis of total I Olathe hydrocarbons (Method 8011P) and Total Extractable Hy (Method 801SM i my be ttipitWe by state UST or other environmental remllatiom. Table 2 indicates other Ix trtial ieters and methods. S"TICS V will be anabzed by IRpk SW90 methods. Quality a,aurance/4uality control (QA/QC) samples i njy�`t" will include collection f 5% duplicates. Samples w a be properly, preserved and delivered as "Snvironmontal Samp ,' per U.S. DOT regulations;(49 CFI 171-178) and International Air Transport Association TA) regulations. Decontamination of the&oil(and groundwater, surfs 'water, and sodimeno sampling equipment will involve the use of i detergent (alc000x or liquine ) with app water rinse and final distilled water rinse. Decontmination of hollow-stem augem will be �,000ductcd using a high preastme hot water or steam, in either a constructed decon ama at the site or in a self-enclosed deean system provided by the drilling contractor. All deccataini1nat{on solutions will be collated in a closed head Timm or appropriate container for analysis,' if socemsary, and disposal at the completion of the Pro . The location for drum storage will be designated by a facility represenffitive. The SIX of SOlntion will be analyzed for BTBXG and RCRA Char-Acuriatics prior to disposal as non-hani dous investigation derived w WESTON assumes tha I characterization activities c an be c�nd<tctcd in Level D personnel protective equipment. D equipment includes hat, set M glasves, steel toed boots, ear plugs, and handwear(le ither and surgical gloves). Th i PID will be used to monitor the worluag space of the field crew If breathing zone readings h a level of 5 relative response units (RRU) sustained above background, work wlli be s until'the proper protective equipmea is at the site. i WESTON will direct Ibu drllting subcontractor in the roper scaling of the boreholes, based on abandonment guidelines per state regulations and/or 9 idance. The proposed goal method will include implacing Po grout bentmiite mix from he bottom of the bor hole to the ground surface unless specified by the state regulat jons/guidance. WESTON perminel wi record all activities in a field bgbooL At a minimum the logbook will contain a description of he field work performed, obsi xvations 'made, OVM field screening and monWriug results, Udx We or other environmental redia descriptions, perx=cl pmsent an site, equipment and MR rials used, and a general acc vriting of the time and expenses for the day. All field activities and health and safety will beptformed following established WFSTON SOPS and appropriate st ae and federal regulations an I guidclirics, as noumsmy. rhLu n eaaox IOLOt4rer.a I tr 4 i i