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SI°11`9 Meftds ' Paso 3 <br /> used duringthe above-descnbed operations pe that are shown to contain potentially hazardous materials will <br /> be disposed of 4*ropriately <br /> Residual substattces gerwratcd dunng cleaning procedures that are]mown or suspected to pose a threat to <br /> 13=1211 health or the environment will be placed in appropriate containers until chemical testing has beers <br /> completed to determine the proper meazts for their disposal <br /> C_4 Cond -Uylty, Temperature, and pH <br /> Specific conductance, water temperature, and pH measurements w.11 be :Wade when a water sample is <br /> collected Regardless of the sample collection method, a representative water sarriple will be placed m a <br /> transfer bottle used solely for field parameter determ_naLons A conventional pH teeter with a <br /> combwation electrode or cguivalent will be used for field-specific conductance measurements <br /> TenWrature measurements w-il be performed using &andard dxrrmotnerers or equivalent temperature <br /> meters Combination instrurnenis capable of measuring Me or all three of the parameters may also be <br /> used <br /> All instruments%ill be calibrated im accordance with manufacturer's recomn=datioas The values for <br /> cocductivtt) standards and pH buffers used in calibration will be recorded in a field notebook All proms <br /> will be thoroughly cleaned and nns:d with fresh water prior to any measurements, in accordance with <br /> Section C l <br /> D SANEPLE CUSTODY <br /> This section describes surdard operating procedures for sa.-nple custody and custody dccwnentmon <br /> Sample custody procedures wJl be followed through sarnnle collection, transfer, analysis and ultimate <br /> disposal The purpose of these procedures is co assure that (1)the mtcgrty of samples is mamtamced <br /> during their collection, transportation, and storage prior to anaysis and (2) post-xuI)s,s sample material <br /> is properly disposed of Sample custod) is divided into field procedures and laboratory procedures, as <br /> descn-bed below <br /> D 1 Feld Custody Procedures <br /> Samirple quantities, types, and locauons will be determined before the acetal Fieldwork commences As <br /> few personnel as poszibie will handle samples The field sampler is personally responsible for the care <br /> and custody of the cellected samples until they are properly transferred <br /> D 1 1 Field Documentation: <br /> Each sample will be labeled z*id sealed properly immediately after collection Sample identification <br /> documents will be careful y prepared so that identification and cha-n-of-custody records can be maintained <br /> and sample di3positioa can be controlled Forns 14-111 be filled out with waterproof ink '!he foIlow.ng <br /> sample identification documents will be uu'ized <br /> • Sample labels <br /> • Field notebook <br /> • Cham-of-custody forms <br /> • <br />