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, <br /> p}° <br /> tyr,,y '3,r �. tf "' _ +h ,,,cr ,;�'��t ti Lr"!-'�t3In •,: . h �: <br /> a� <br /> February S, 1991 <br /> page 3 <br /> GASCO Gasoline Station <br /> Froject No.3-3()054`31 <br /> f ,nteraal will be <br /> within the first encountered <br /> {I The screentid 1 hL long screen internal is due to l togX <br /> the slotted scrEen section- t in len?,th. p raximately fl� <br /> roxirnate[y 35 fee and hydrated to act as a <br /> watek surd alp toundwatcr levels kna`ym to occur at the site. id ' grout. Thr <br /> fluctuatuans in g will placed on tap of the sand pacl- with c mcn,, rade. <br /> Mets annular space�x'sil be sealed <br /> foot of bentonite pe rtion of tho ht, tmflic-rated vault box <br /> secunt�' <br /> seal. The rem)illing pores in concrete in a water-sig <br /> of the well will be ' plug will be used to seal the rvellbaad and provide <br /> top ex ansion p "g are shown in pigur-3- <br /> A <br /> 3. <br /> p prlC l0 king p wCll details <br /> Typical groundwater nroaitonng <br /> WF41 1Qvelopr�rerat sous the hydraulic can,d,activity <br /> devetofued to imp Conducted by a surge <br /> After canstructian, eachaml <br /> well will be * Development wi14 be <br /> well and the natural formaian• a the was:r Manually bailed. <br /> between the f, ,urge bloc, will be used to su gwill then 6e .�i free <br /> and purge method. Sediment brought into uue w well radices sedirne.. <br /> screen and sand nac�• <br /> - merit using this method meet is observable.untithe p <br /> Develop rove 2h hours <br /> water or until no further imp a for approximatetyrtent will <br /> from the wcils durir_g their develop <br /> each well will �rllo�xed to sec asg <br /> - .After developreo t,pn liquids reluDvcd ,lhe dorms will be left at the sive �zntil <br /> Any the drtzreus will be properly <br /> prior to sampl►n�'f a raved 1"lE drums. At that time, <br /> be. stored uaa DM <br /> x- PP <br /> laboratory tical results ase known. <br /> ' flisposed of by Datet;ol. <br /> lin drocacbans. Wella %it'h. <br /> Groundwater Same g 1►ase try d ,Tee-phasa <br /> each well will be checkedfar free`however, detect., <br /> will not be sa+�pled; <br /> Prior to sampling, Tire hydrocarbon thickness orad vOOtniq <br /> free-please hydzocarbons ed of stagnant water p <br /> hydrocarbons will be bailed from the well. H conductivity, and <br /> r�cc�rded. -ach well will be pus u ucleuding p p sample <br /> Field rrueasurernents, ur•utrg process. <br /> 1 : retnoved will be le Normal during the p <br /> odically recorded ,vrVhin 10 percent of each other, <br /> collection of a san'Will be pets s <br /> water temperature, aTameters stabilize to pin removed. <br /> o�+ill be collected when these p volumes of water has - <br /> ninituxrt of four well-casing 1e will be taker <br /> Pr a mi removed. flue same . <br /> roximately $� '' of its initial to the <br /> ' well is evacuated before fear welt volumes are transferred <br /> if€h. a welt recovers to app roan bailer and <br /> collected with a toged on chain-af- <br /> tlue water teles wills be R Samples will be labeled, g state-Certified <br /> 1�vei. The ramp lied bot,les. ort to a <br /> appropriate laboratory chilled in a chilled ice chest for transp <br /> ctustody forms, and p <br /> laboratory fcr analysis. <br /> t <br />