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nail Irwin ~onst. ~D~970-352-6284 DEC ~97 1607 No .009 P.02 <br />:. - ~' . ' <br />e <br />.OfiOROi N.OTTBNIIOPP <br />RlIM`rN P. L!A <br />KRi R. UIWRfiNCfi <br />JfifTBY R. CI1RN6 <br />LIND, LAWRENCE r~ OTTENHOFF LLP <br />ATTORNEYS AT LAW <br />nn uw euRalRa <br />1011 RiV~MHAVEWE <br />oR[e1.fir, caoRAOO OOQ71 <br />December 12, 1 <br />Department of Planning $eroicee <br />Weld County <br />1400 N. 17" Avenue <br />Groeley, CO 80631 <br />Re: U8R t 172: Well Mitigation Plan <br />Hall-Irwin Construction Compar <br />Gentleman: _ <br />,fr <br />Pursuant to the requirement for the,.at~ve <br />this Well Mitigation Plan. ~"`µ <br />~: <br />rt . ,. <br />1. To tnonltor the ground :'~ er lave[ i <br />drlllei~;They vnll~be',{oceted appr <br />Pit <br />Company submits <br />~ ~ <br />~r+. <br />piijl~y of the pit nitoring walla will be <br />erg as shown n the attached map. The <br />racorda~ monthly. The records will be <br />2. Them ~" °` II darari+Q~,)ye used to compare to historic wnditions at the site <br />whi w~l~evel '~ from existing wells, <br />3. Inca the Brighto~"`Pt~Yrlil ba Ilned by the t~entonite slung well before any algnificemt <br />amount of growrrli~niafer is exposed and since there will be no pumping of ground <br />water to the 3oLth Platte Rivet' the depletions from the pit are expected to be <br />;, minimal or ~ and there should be no significant lowering or elevation of the <br />..water tablat.,,~auaed by the pit. There Should be no effect on any adjacent wells or <br />_j~pp~ the mining operation once the slurry wall Is in place. <br />a. 'Itthe monitoring well data and historic data indicate a lowering of the water fable <br />caused by the mining operation that signlflcanUy diminishes well production for any <br />well within 20013 feet of the pit, Hell-Irwin will pump or otherwise deliver water to <br />augment the effected welts until the condition is remedied or the need for the well <br />water ceases. <br />P:YO~ryNLLYIJ1111{iR <br />