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drsisms fr~r any culverts and ditches, including Old Hig{nvcry /3 3 culverts' and <br />rood ditches, involved in the flow path. Obv{ozr.rly, these desi,~~ns uvnrld need [o <br />be approved by the Division before the mine wa[er could be routed throu,Q{r [he <br />drainn<~e conurol svs[em. <br />The revised NPDES permit also s[ntes that donresric waste water trecument wi(1 <br />commingle with pond B surface runoff water. /f Bowie Resources wishes to, the <br />efiscassion and modifications Iha[ will he necessary for the waste water addition <br />can be provided with this revision. <br />9c. Unce mine water discharge is transported over the Deer Trail Ditch and the Fire <br />z~(oun[a{n Canal, what will be the effect of the water qucrntiry crud quality on <br />downstream users ? Please add this discussion to the probable hydrologic <br />consequences section, per Rule 2.0~.6(3)(b)(iii). Inclzzde in this discussion <br />whether this discharge can possibly adversely affect the North Fork of the <br />Gunnison Alluvial Palley Floor or any prime farmland. If structures will be <br />added to pipe the mine water discharge into the North Fork of the Gunnison, <br />please add this discussion to the permit, along with pertinent designs. /f anv <br />such structures are built that go beyond the current permit boundary, then, a <br />revised permit boundary that includes these structures, and appropriate right-of- <br />entry information for Chat new permit land, need to be supplied. <br />9d. On proposed revised page 2.04-35, it is stated that sediment loading would 6e the <br />only impact of the mine on surface water. /n light of the statement concerning <br />mine water discharge, please modify the statement on page 2.04-3.i to include <br />mine water discharge. <br />10. On proposed revised page 2.O.i-84, it is stated that the submittal date for the Annual <br />Hydrologic Report will be on or before May 30 ojeach year. However, the approved <br />submittal date is March 30, as stated on page 2.0~-78 of the permit application. Please <br />justify this change in the submittal dote. <br />The Division has no further concerns. The operator requested that the Annual Hydrologic <br />Report be submitted at the same time as the Annual Subsidence Report. April 30 is <br />satisfactory to the Division. <br />1 1. On proposed revised page 2.O.i-99, it is stated that the results of the subsidence-related <br />hydrologic and visunl monitoring will be submitted by the end of each May. However, <br />permit application page 2.O.i-92 states that the submittal date will be the end of each <br />.9pril. Please jzzstify this change in [he szbmittal date. <br />The Division has no further concerns. The operator revised page 2.05-99 to state that the <br />Annual Subsidence Report will be submitted by April 30. <br />4 <br />