Laserfiche WebLink
_~ <br />.. <br />~.;: Wright Water Engineers, Inc. <br />-:. <br />DENVER OFFICE <br />2490 Wesl 261h Ave., Suite 100 A <br />Denver, Colorado 80211 <br />(303) 48D1700 <br />(303) 480.1020 FAX <br />December 6, 1994 <br />Ms. Christine Johnston <br />Reclamation Specialist <br />Mr. James Pendleton <br />.Scientific Coordinator <br />Mr. David Berry <br />Senior Environmental Protection Specialist <br />Mined Land Reclamation Division <br />Colorado Department of Natural Resources <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203-2273 <br />~~I ~I~~I~II~~~~~~I~ <br />sss <br />GLENWOOD SPRINGS OFFICE <br />818 Colorado Avenue <br />P. O. Boz 219 <br />Glenwood Springs, Colorado 81602 <br />(303) 945-7755 <br />(303; 893-1608 Denver Direct Line <br />(303) 945-9210 FAX <br />RECEIVEQ <br />DEC 0 9 1994 <br />Division of Mmerais & Geology <br />Re: Follow-Up to December 2, 1994 Meeting Regarding West Elk Mine <br />Dear Christine, Jim and David: <br />Thank you for meeting with us last Friday. We appreciated the opportunity to have an advanced <br />discussion as to the nature of work that we will be conducting for Mountain Coal Company <br />(MCC) on the Box Canyon and "mini" South-of-Divide (mini-SOD) lease areas. We are writing <br />to confirm our understanding of the highlights of the meeting. Should your understanding of <br />the items covered below differ from ours, please call a[ your earliest convenience and we will <br />clarify the text, accordingly. <br />1. Kathy Welt of MCC started the meeting by describing the nature of the mining <br />proposed in the Box Canyon tract and in the mini-SOD tract. She noted that <br />WWE's role is [o quantify subsidence and probable hydrologic consequences <br />(PHCs). <br />2. Jim Pendleton asked if there are spring monitoring data yet in Box Canyon. <br />Kathy Welt replied that there are no such data yet but that MCC will begin to <br />collect the relevant data. <br />3. Richard Dunrud (subconsultan[ to WWE) described the methods that we intend <br />to use to quantify subsidence. WWE will utilize [he accepted conceptual <br />modelling approach as well as to state-of-[he-practice computer models to project <br />the magnitude and shape of the subsidence basins for each longwall panel. The <br />input will be based on the available site-specific data from the Wes[ Elk Mine and <br />surrounding mines. <br />