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stndergroured st_atagc t.mlc and tcficsn <br />It <br />oes: not b+_Iiesozy pump uit. The EHD <br />that ufficient, dasts to <br />ta exi <br />at ion” finding. ;a}ce a "no <br />Irr order to accompl ir;h tl.ese Lasah ELfD believes tkrat the <br />local dirnctlon of flow of the water in <br />be d cLa aquifers should <br />terrnine 1 . The c,t,ly surd wad' Lo do this i to measure <br />precisely the standing fluid level In 1111-ee or more nearby <br />locations and tt calculate the lopf. of t;r , w�t_et_ table. <br />I•'ig"re and 3 show tl!e slo e_ <br />table nn a rec }" of Lae undergrounC, water <br />lienal bit is; however, t to c4ata is not u, <br />complete in the lona] ,area <br />has raas on rnoL of Lilt' Map. The THD <br />l -So e quired that- tai s <br />water table l_ _ he dem <br />terined. They <br />have• al -So rethat sthe• water in the on Hite watr:r <br />bo I.Csteri for contamiMLi_a; and that wc21 <br />IE one that th <br />its level hu determined. <br />knsw the water in l.hi.r well were in continrxed <br />ktydrauliC contact wiLle ch.st c;,rich will be found in <br />monitoring wells, Lhen only two <br />needc,d to c'emonwWould ells ould be <br />determined mi u,,j thwite water tabue s <br />le slope becasthislope <br />this re <br />cin } h 3 points. Inasmuch 'As thi ie: not <br />drilled <br />known, port rer_ormnends that throe monitoring wells he <br />a., shown on I'igtute 4- Iticll No. 1 is located in a <br />mans <br />down clone water flow direction as deduced from Lho Counter <br />and adjacent to Airpurk_ Way. Well No. 2 will be <br />located within IO' of the and of the tank excavation, in e <br />position whore any laak.1ge would likely be diseovrrred. Well <br />tla. 3 will be located adjacent. to Ilii -pori Iv'ay In a southorly <br />direction; which POs=ibly altio CO"JCt be thf, direction of <br />crater flow' If, "Pon testjng the, Nater level in t}se cu rent <br />1water well, it is found that the levzi obtained fits the <br />'al-tr n of the tiirec tnoaitoring wells, then this data will <br />alio be utilized in c.3etcrmining the: wa-cet- table slope. <br />Px-opo�•ed Field Work <br />Figure, 5 is it <br />wells. F•�ract deptiks furalach ofrthLll a pl.opcsr'd moniLoriny <br />not bo known until the bar,' are drilled. 1eed. <br />hole ; d. shown Wj 1 2 <br />- <br />A Portable, Lr.trck mounted, hollow ,tem atrgLr drl2ling unit <br />t. 11 be used. A10" nominal •-ire O.D. hole will be horud to <br />an estlmaLed 30' below gr:-ou.nd 1cveJ Or: whatevnz' depth is <br />ncecleri to Penatrat, the water table at 1, ast 10' . 5o g tl ton <br />druias with scaliriy cover;; will be on ;ite for callcc.tion of <br />all auger cuttirrTs dnci any w'tter bailed Cs cm the wf 1 The <br />cult-I-js and any wager collected will be di:>pgscd of in a <br />Proper manner after the Operation is concluded, tl:e d'.sposa' <br />methods :gill be dependent upon levels of Poll"tanu <br />ts Fond. <br />The xe.l is wi 11 kre cased with 4" screw-joini,e« PVC with the <br />bottom lo' plus, prc•-pe1'£ot'al:c-d with .C2" slat bLani; nosedon bot -loin. •rhe well bolt:az-ound <br />packedb em the perforated interca] will <br />meditm.1J# 3 sand nr the uquivalent a e <br />a EiILr <br />�' fentnniLe clay Plug will he placed above the <br />PerLorationr;, in the 4" Pipe_ -bnretrolc annulus, l;o at.t ss a <br />