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y <br /> i <br /> TABU 4.1 MONITORUG ALT=RNATIVIO <br /> MINIMUM <br /> WNITORING RtTCROCg <br /> u.suxwrlv�..____�pg. nfn�x E ler mlrarr! Aro_mrelTler�,�sY,{x,�■c ur nr ururastvr. <br /> 1 Tank Testing Monthly Section 2641 None <br /> 2 Vapor 1. Must be able to do both T640 06 and ground rater <br /> or monitoring, <br /> Other redone 2. Groom d rater should eer.slly be leas than 100 fret <br /> tone Monitoring deep to vee this alternative. <br /> Method Daily/Continuous Section 2646 1. Mieia ■unser of ground voter monitoring wrllat <br /> end a. Gourd rater equal to or loom them 50 fret deep. <br /> Ground Mater Semi-annual Section 2641 a Siegle or sI tiple task* (ell 41.000 gal. sa.e or <br /> •ed closely spaced smemvstiowr) - one downgradient <br /> loll• One-Tina section 1645 well par tank ■ieim up to three wells. <br /> a Single tank (tl.000 gal) - two wells wimiwusi <br /> one of which shall be dorngradient. <br /> o Two or three tank@ (at least one _11,000 gal. .awe <br /> or closely spaced escarations) - three wells, <br /> Minims at less% one of vhicb •hall be downRradient. <br /> e Four or rare task@ (at Ingot pee 11.000 gal. .awe <br /> + or closely spaced excavations) - your wells <br /> ■ioima.a. at least two of which shall be down- <br /> gradient and the re.eisder ejually spaced. <br /> pipaliers - additional wells, if needed. as <br /> detfrmioed by the local agency, <br /> b. Ground rater greater then 50 loot damp. <br /> o single tank -one downgradient wall. <br /> e Multiple tanks or closely spaced tank <br /> excavations - three cella uniformly spaced. <br /> "steam the Seamed rater gradient can be <br /> accurately determined. in which Cafe. one <br /> dorelradieet well. <br /> o tipoliaea - •dditieeal Wella. it weeded. <br /> Y r y the local agency. <br /> 3/86 UGT 7 (3) 4 . 7a <br />