Laserfiche WebLink
iiiiiiiiiiiiiiuiii <br />9 9 <br /> <br />S.rnTl rn r_i~l~ae,:l in un ~~.,nl~U, i.u^;, ...~~~~.~ <br />O ENARTPdErJT OF NA rURAI P,ESOIIRC ES <br />D. Niome FJSCOC, E.ecurrve Dlrecwr <br />lIl\'r;D L:`~l) [tC(:LA1I-~'TIO~i <br />423 Centennial Bulldiny. ~313Sherman Street <br />Den.-er, Colorado 80203 Tel. (303),466-;SG7 <br />David C. Shelton <br />Director <br />Tray 1~~, 1ss? <br />A/s. .^~fichaelanne P;arthill <br />Division of Coal Plining <br />Department of Energy <br />F. E, -2n, GTA~ <br />[:'ashinyton, D. C. ?0595 <br />P.c: Canr_ollatinn of DOE Subsidence I'ascrrrch Projects h:ithin thc- <br />Statc of Colorndv <br />Ucar tds. 1!arthill: <br />The State of Colorrdo, pursuant to S:;CkA, has adopts.', and is cmforciny, <br />a conprehcnsive pro~7rwn of crkT1 mining regulation. Cr.e major component <br />of our program involves the minimizr:tion of environmental impact due to <br />ground sur. oce avi,side_nce above underuzround coal .mines. Our re5v la tior.s <br />(see attached) speci;=ically require operators to pre~•er,t material damace <br />to rene~.,~able resource lands an.l structures. A major corn~~cnent of most <br />"subsidence surveys" o~ "subsidence control plans" is a mr~ritorinc <br />program to verify the :n..-gr,.i tudr_ of sli~sidence and strains generated by <br />sursidence, ohserred angles of dram, a:rd the tones of subsidence rihenorcena <br />manifested at the yround surface. Particular attention ::s focused upon <br />the potential impacts o.` subsirence upon the hydrologic balance, including <br />impacts upon i~otiJ bedroc}: and alluvia] aquifers, and impacts to existing <br />I~~ater rights and c.•ater usave. <br />The LCE funded research projects at the Coal oasin mines near Redstone, <br />Colorado, and the hllen mine near Trinidad, Colorado, are particularly <br />valuab~e data sources. The DGE' Iundinc• allaos a more complex monitorinr_; <br />of subsidence para.metars than r;ould uscally be feasible to unsubsidized <br />coal ;nine operators. TiTese t:oo resa~J:~ch projects arc located in areas <br />of projer:ted major underground coal mining .i.ntensity r~dthin the State of <br />Colorado. <br />1'hc- cancellation of Li:eso urojects r:i~1 have several anticipated effects: <br />(1) The mine operators ir.velred, ::hose "subsidence control plans" incL:dc. <br />verification of subsidence projections through thn use o: t_!:e an tic:inate..i <br />data to Le acquires Ly you: projects, r:dll br. renui.red to absorb the cost <br />of col.iecting that data. <br />