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C January 28, 1985 Mr. Lawrence White Page 2 In your stipulation status letter of November 6, 1984, it is stated that Twin Pines is contemplating an outside source of water for use at and within the mine; therefore, use of mine water may not be necessary. The Division has no major concern with this, except that prior to a change in water use plan, a Minor Revision must be submitted and approved for this activity. Stipulation No. 4: This stipulation addresses the handling of topsoil in the Lewis Gulch Fill Area and reclamation of this area. The original concern, as was stated in the Findings Document (page 30), was with Twin Pines' proposal to distribute the salvaged topsoil from this area on the slopes of the Lewis Gulch Filt embankments. Since this fill area must be removed during site closure and reclamation, this plan was not acceptable and an alternative plan for topsoil storage and redistribution was required (see Findings Document, page 30). In your stipulation status letter of November 6, 1984, it is stated that topsoil from the Lewis Gulch Fill area will be removed and placed in a temporary stockpile with subsequent redistribution on the highwall fill slope above the bench. This disallows redistribution of this topsoil back onto the Lewis Gulch Fill area, once the fill is removed. However, given that the highwall fill slope is a more critical area in terms of stability and revegetation success, it would be prudent to place topsoil on this area as soon as possible. The plan for reclaiming the Lewis Gulch Fill area is outlined on page 88 (rev.) of the permit, and includes grading, seeding, and mulching of this area. This plan is acceptable as outlined in the permit and your stipulation status letter, and no further response to this stipulation is required. Stipulation No. 5: Prior to any reseeding of backfilled and graded areas, Twin Pines is required to submit a proposed test program for testing of the seed bed material. In your stipulation status letter, it is stated that sampling will be accomplished with the assistance of the local Soil Conservation Service office; however, more specific information on the number of samples to be taken and the parameters to be analyzed has not been presented. The Division considers four representative sample locations to 'oe aequate for the Twin Pines No. 2 area, and samples at each location should be composited into six-inch increments down to 30 inches. Your response to this stipulation should specifically include reference to the number of samples to be collected and analyzed, tfie parameters to be analyzed for, and a committment to follow any recommendations made by tine Soil Conservation Service and Colorado State University.