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saw IMg Methods hze 2 <br /> 1 Drill rig augers drill rods, and drill bits wILL be steam-cleaned pnor to use and between <br /> borings Visible sod, grease, and other urnpunties will be removed <br /> 2 Soil sampling equipctent will be steam-cleaned prior to use and between each bong <br /> Prior to individual sample collection, any sampling device will also be cleaned in a TSP <br /> solution and rinsed twice in clean water Any visible sail residue will be removed <br /> 3 It is anticipated that disposable equipment will be used to collect Rater samples If <br /> disposable equipa=t u not used, water sampling equiproent will be decaritamin,ated <br /> using methods described in uteri 2 above for soil sampLing equ Punct <br /> 4 Water sampling corita,ners will be cleaned and prepared by t}�e respe:c•fe analytical <br /> laboratories <br /> r <br /> 5 Stiuiiess steel or brass soi, sampLung, tubes w,-'J be steam-cleaved or aay'ied in TSP <br /> solution and rinsed u rtz clean water <br /> 6 Field meaitornng equzornew(pH, conductivity, or tempera=.-p-.bxs; v :Ji be rinsed <br /> with clears water prior to use and between sarrip,es <br /> C FIELD N11EASLMLNIENTS <br /> Field data will be collected during varoti> sampling aid moaiaonig ac ivwies this se` or describes <br /> routine procedures to be foLowed by persoacel performing Field ineas,:rw'tients T--.e rrx'Icds p:eser d <br /> below are intended to ensure that meld aieasui~emerits are consistent and neo cru cl= wbe-:performed by <br /> various personnel <br /> C 1 Buned UtArty Locations <br /> Prior to camrrieaccmcat of work oo s to Doulos will contacc aporoonaie utility con-a-Les to have <br /> undergrour;d utdim Imes Ideated Dculos will also visually sunk the site tc eSL_•Bate c:x locations of <br /> poter,ually unisuarked t-ndergroLnd ut,lities All work associated w th the bortrig7 w-i 1 ie preceded by <br /> hard aueenng to a minircum depth of 5 fee.below grade to avoid damag t:.- uid.rt-ou d utilities <br /> C 2 Lithologrc Logging <br /> A Log of soil coadrueas encountered duricg the dnili ng and sarrple collecoan a i' be rsa-nta acd using the <br /> Unified Soil ClassiFicatioc System by a Doulos gxlog-,st A Caljorn a r ystered goo egist wdl review <br /> all boring logs <br /> 'ne collected soil sa=T4es will be exacuncd and the following uiforirat:-,cn recorded boring location, <br /> sample Interval and depth, blow counts, color soil type, moisnze content(qua?ita -,e) and depth at <br /> which ground wattr (if present) is firs• encountered Also recorded en tae sot] Lo--og logs will be the <br /> field screening results den,,ed horn the use of a portable PIT?or FID <br /> C 3 Disposal Procedures <br /> Soils and fluids that are produced aa&or used during the ttistaUuon and sarplmg of boriags, and that are <br /> known or suspected +,o coctam potentially hazardous materials, will be conained dtsing the above <br /> operations 'These substances wi11 be:etamned on sac until chermcal tesixg his bean completed to <br /> . &termim the proper means of disposal Hani:Dmg and disposal of substances lnrowm or suspected to <br /> contain potentially hazardous materials will comply with the applicable regulations of DHS, the California <br /> Department of Water Resources, and any other applicable regulations Soils acid fhLds produced andlor <br />