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TRAPPER MININGrINC. III IIIIIIIIIIIIIIII April 21, 1998 Mr. Tom Kaldenbach Environmental Protection Specialist Colorado Division of Minerals & Geology RECEIVED 1313 Sherman Street, Room 215 Denver, CO 80203 APR 27 1998 Re: Trapper Mining Inc., Permit No. C-81-010 East Pyeatt Drainage Repair Plan Division of Minerals 8 Geology Dear Mr. 1{aldenbach: Please accept this letter as a summary of my understanding of the agreement between Trapper and the Division regarding plans to repair the East Pyeatt drainage during the 1998 field season. In general, we agreed that the lower section of East Pyeatt drainage thaz was badly eroded by the floods that occurred during the fall of 1997 would be repaired this summez on only an interim basis. We agreed that it made little sense to fully reconstnrct this section of drainage until such time thaz a majority of the Flintlock Pit watershed disturbance upstream was reclaimed and revegetated. It was felt rbaz until upstream disturbance is reclaimed this drainage section would remain susceptible to flood damage. Specificrally, Trapper will leave the lower East Pyeatt drainage open for three to five years (or until upstream Flintlock Pit disturbance is largely reclaimed) and allow it to continue to stabilize to its natural gradient. Interim drainage reconstnrction steps to be taken this summer would include removing topsoil and laying back drainage sideslopes, stabilizing the headcut area of the drainage and installing several rock check structures. Several dozer basins will also be installed upstream to reduce sediment transport and deposition in the lower reaches of East Pyeatt drainage. Final future reconstruction efforts would likely involve adding additional rock check structures, laying down topsoil, seeding and surfacing the drainage bottom with brush or erosion control matting. As you know, reclaimed parcels A-C-94, A-C-95 and A-B-95 were removed from the recently approved Phase I bond release application because it was felt thaz the section of East Pyeatt drainage thaz runs through these paree!s was not yet stable. Looking forward, we :vil1 not propose these reclaimed parcels for Phase I or R bond release until Seal reconstruction of the lower reach of East Pyeazt drainage is completed. Please contact me if you have any questions or disagreement with the contents of this letter. Sincerely, ~ ~ ~~ ' ~Kt Forrest Luke Environmental Manager lg:/fvVdmg/epyavep. doe i C w File 109.2.3.4 P.O. Box 187 Craig, Colorado 81626 (303) 824-4401