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<br />tThe Pittsburg & Midway Coal Mining Co. <br />A Chevron Company <br />Edna Mine - P.O. Box 176, Oak Creek, CO 80467 <br />(303)736-8111 <br />Mr. William Crick <br />Colorado Mined Land Reclamation Division <br />1313 Sherman St. <br />Room 215 <br />Denver, CO 80203-2273 <br />Dear Mr. Crick, <br />R III IIIIIIIIIIIIIIII <br />~~FIV <br />F <br />~~c o O <br />2 799 <br />q Miq 1 <br />ecia~ai n~VS/on <br />June 29, 1991 <br />P&M personnel conducted a rill and gully survey of the West Ridge area <br />on 6/27/91 and 6/28/91. The purpose of this survey was to identify <br />areas with erosional features, namely rill and gully activity. This <br />survey along with suggested remedial actions satisfies the requirements <br />set forth in the Edna Mine permit for an annual rill and gulley survey. <br />The current rill and gulley plan now in place in the Edna Mine permit <br />deals with re-topsoiled areas that have been re-vegetated. This year, <br />in anticipation of changes submitted in the mines mid-term permit <br />submittal, the entire West Ridge area was surveyed. The Moffat Area <br />has no re-vegetated areas to date. The enclosed map summarizes ground <br />conditions encountered during the survey. <br />Areas that have been re-topsoiled and seeded were found to have no <br />significant erosional features. Vegetation, aided by the first year of <br />adequate moisture in many, is doing very well. This vegetation has <br />grown into previous erosional features evident from past years and mine <br />personnel see no areas that need attention in these topsoiled areas at <br />this time. <br />Non-topsoiled areas above the West Ridge haul road do have some <br />erosional features that would warrant some remedial action. However, <br />this area has not been seeded and much of this area will be further <br />disturbed with grading of final pit spoil from the top of the ridge. <br />This final pit grading will serve to reduce slope gradient and remove <br />these rills prior to re-topsoiling and seeding. <br />Non-topsoiled areas below the West Ridge haul road have been seeded and <br />some of this area is affected by erosional features. Of primary <br />concern are the features noted by bold lines on the enclosed map. The <br />feature that extends to the West Ridge ditch in the lower part of West <br /> <br />