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sIsupiMg trictbcad; , <br /> Daae 3 <br /> used during the above-described operations that are shown to contain potentially hazardous matenals wUI <br /> be disposed of dpproprtately <br /> Resudual substatires generated doting cicaning procedures that are known or suspected to pose a threat to <br /> humaa health or the environnicnt will be placed in appropriate containers unul chemical tesLmg has been <br /> completed to detetTrune the proper means for their disposal <br /> C.4 Condta hAty, Temperature, and pH <br /> Specific conducEaace, water temperature, and pH measurements w.11 be made when a ware.sa ample is <br /> collected Regardless of the sample collection method, a represcatattve water sample will be placed tit a <br /> transfer bottle used solely for field parameter deterra.nations A conventional pH raeter with a <br /> conly=tiaa electrode or ectiivalcnt will be used for field-specific cohductance measurements <br /> Temperature measuremeats'wX be pecfoctned using&andard thermometers or equ.val t teYnperattue <br /> nxter3 Cotrbknation,insUuMCnts capable of measunng t vv or all three of the parame'ers rnaV also be <br /> used <br /> All snstnune:tts wile be cahbra,ed in accordance with manufacturer's reccmmeadrtions The Val= for <br /> coeductivit) swdzrds and pH buffers used in calibration will be recorded in a field nctebook All prooes <br /> %4-dl be thoroughly cleaned and nriscd with fresh water pnor to any rneasureirenu, m acco-d;ince with <br /> Sectioc C I <br /> D SAN91L.E CLSTODY <br /> "Ibis sechca describes standard operaung procedures for maple custody and custody dac=.entatxri <br /> Sample ctisrody procedures wall be followed through sample collect;on, t:ars°er, ana:v5is, and ulamate <br /> disposal The purpose of these procedures is io assur:that (1) the mlcgr-t I of sa=les is-raintained <br /> during tae r callecuon, trarisporatioa, and storage prior to analysis and (2) pest-,va-ys s sample mater-.01 <br /> is properly disposed Cf Sample custod, is divided into field procedures and laberarory prx:CIres, as <br /> described ceiow <br /> D 1 Field Custody Procedures <br /> Sample qu=Ities, types, and Locattotzs will be dete=ned before the actual fieldwork commences As <br /> few persormel as possible wJ!handle samples The field sampler is personally responsible for the case <br /> and custody of&.e collected samples antil they are properly transferred <br /> D 1 1 FLzid Dccurieotatioc <br /> Ea-.i sxWTe will be labeled aid sealed properly Launedaately after collection Samp'e identification <br /> docLrr=ts will be ca'eful y prepared so that identification a.-id cha n-of-custody records can be main tuned <br /> and sample diitioa can be coiitrolled Forms will be filled mt with waterproof irk n follo <br /> aposw ng <br /> sa--nple ideatifica^on decuruents will be uu'=-d <br /> Sample labels <br /> Field notebook <br /> Chain-of-custody forms <br />