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will ba dEcOntuminated prior to commencing drilling at each <br /> h-lo' Well const—'tion mpCarlals will be cleaned <br /> neeoas <br /> .tA3 y, prior to installation. <br /> V+ Equipment and wall matarlpl ducontaminat Jon will be <br /> condaCtud no an lmpprmeable surface and all dec.ntaminatlon <br /> ill be Thalu ba thoroughly ntlac.nta min ell d eve Ings p oftheeCleanert <br /> The equipment Hill be Placed a drying rack for air <br /> drying. The deConta mineClon water Hill at.r.d I.cc <br /> ntOinar. <br /> certified for hazardous materials atoraga and disposed.E In <br /> an approved men.pr. <br /> Sample eq,ipm..t to bo used Eor pesticide. and Organic <br /> nalysie Hill be washed in a nonph.sphate detergent {Alcon.. <br /> Or eqv iyale nt) and rin.ed with tap water, followed b <br /> deionlzed Hater and finally wy <br /> l til acetone. 1f the equipment <br /> with or metal. analyaie, the Snitlal rine. will. b. nendvcted <br /> 0.1 N nitric acid followed by tap water and dei.nl zed <br /> water. <br /> 7.0 Field Equipment Calibration and Maintenance <br /> _ The fcllOving measuring eq::lpmunt may bu used during the <br /> Remedial Inves ti gatL.n. Equlpmant is grouped by fJee <br /> Id <br /> foractivity. Calibration procedures and Ereq.ency are listd <br /> eaeG pieta. <br /> .. soil eo�ring. s <br /> and 41.11 olmansion -5tee1 and coated cloth <br /> Etale. Cal lbratlon: none. <br /> Hater ceyel Measvremen Ca in Walls- 5Cee1 rveyora tape. <br /> Calibcatlon: manufacturer sup pli ea tempeca tv re Co rrp c Cl,n <br /> will ha applied as app livable for field onditi.— <br /> Electrical w.11 s011nders. Cali bratirn: check against steel <br /> surveyo[�s tape. <br /> Or nit Vapors- Aho tolonlzation d.toctor. Calibration: <br /> .ally fS Td Calibre Ylonusing a iso hu tylenu eta nd and as per <br /> manufacturers ins trvetle ns, j <br /> Grouer ndwatI"Meaeurament- ligitel .. meter. Calibration: <br /> standard pll ealntions of 4, 9, and le will ba utlli<ed for <br /> J <br /> daily field Calibration ac cords ng t❑ manufacturers <br /> j <br /> instruction e. <br /> Electrical LonduotivitL,- Electrical conductivity ..ter. <br /> Calibratlan: factory-calibrated -lantily and pati Odleally <br /> Calibrated against laboratory prep.rad standard calibration <br /> solution. <br /> I <br /> Water Tomp.rature- Msreu ry or digital <br /> W­­' <br /> ermometers, <br /> Calibration: factory-callbra ted a <br /> nce, <br />