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~, 2 i. The AVS indicates that MINREC owns Lark Mining Inc. while Lark Mining is not listed in the PAP. The PAP does not include reference to Lark Mining because MINREC no longer owns Lark Mining. DMG will modify the information in AVS to correspond with the correct information in the PAP. 2. Where are the designs for the refuse disposal underdrain and is the pipe near the toe of the RDA an underdrain outlet? There is no underdrain beneath the RDA. Page 4-21 of the PAP indicates a "naturally occurring subdrain" of clay existed beneath the site. DMG's 1993 Findings (the last permit renewal) reiterates DMG's prior approval of an alternate subdrain system, per Rule 4.10.3(5). The pipe observed during the inspection is a remnant of an old pipe which was used to measure flows in the ditch leading to the RDA pond. The pipe is being removed by the permittee this week. 3. AFO requested a copy of the revised bond form listing OSM as a co-beneficiary. A copy of the bond document, submitted in October, 1992, is enclosed. 4. When were subsidence monitoring requirements dropped? Subsidence monitoring requirements were dropped by DMG in 1988. A Stipulation No. 9 attached to the original permit required establishment of subsidence monuments. Page 10 of DMG's 1988 Findings (the second permit renewal) indicates, "A subsidence monitoring program was proposed.... the Division imposed Stipulation No. 9 which directed Snowmass Coal Company to install subsidence monumentation above any underground workings within limited extraction areas.... The areas to be protected by this monitoring plan were never undermined and since the mine has been closed and permanently reclaimed, this stipulation is no longer in effect." DMG will have the permittee revise the permit to clarify the current status .of the subsidence monitoring program.