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~~~ V V V V C ENGINEERING <br />61 I Skyline Road - Laramie, WY 82070 - (307) 742-0031 <br />FAX (307) 721-2913 - E-mail: infolar@wwcengineering.com <br />~~~~~~~~ <br />November 1, 2007 ~~~ 0 ~ °tUQI <br />pivision "' and Safety n, <br />Mining <br />Kristal River, LLC <br />P.O. Box 880168 <br />Steamboat Springs, Colorado 80477-0168 <br />RE: Monitoring Well AbandonmentJTransfer Ownership, Edna Mine <br />Dear Sir/Madam: <br />Chevron Mining Inc. (Chevron) has contracted WWC Engineering (WWC) to assist in <br />attaining bond release for the former Edna Mine, Permit Number C-80-001, located in Routt <br />County, Colorado. The Edna Mine is in permanent cessation, reclamation is nearly complete, <br />and the site is approaching potential final bond release. Prior to and during mining activities <br />numerous monitor g wells were drilled within and extending outside of the permit boundary. <br />The monitoring w~ls are constructed of steel/PVC casing ranging in diameter from 1"-6" and <br />depth from tens to'hundreds of feet. Most monitoring wells are completed with a 6" stick-up <br />above ground and 'a protective housing at the well head, however some wells are flush with <br />the ground. The construction of the monitoring wells was for observation not production. <br />The monitoring wells had numerous purposes including attaining water level and/or water <br />quality data. The (referred monitoring wells have since been removed from the Edna Mine <br />groundwater monitoring program. These monitoring wells need to be either plugged and <br />abandoned in accordance with state regulations or transferred in ownership rights to the <br />current property <br />on your property <br />• GMCS <br />• RE4 <br />• UNK-1 <br />• UNK-2 <br />The aforementio~ <br />monitoring wells <br />during our field i <br />mining or other < <br />years of this notii <br />performing this <br />prior to final bond release. The following monitoring wells are located <br />~igure 1): <br />d list includes monitoring wells referred to in the Edna Mine Permit and <br />Which have been observed in the field. Those monitoring wells not located <br />;pection are assumed to have been plugged and abandoned or destroyed by <br />tivities. However, should you as a landowner locate such a well within 5 <br />and you desire the well to be plugged and abandoned, Chevron commits to <br />;tion. Monitoring wells GMCS, RE4, LINK-1 and LINK-2 have been <br />