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furrowed. Flow is filtered by established vegetation. <br />- Access Road Strip - includes some 1.0 acre of 1986 seeding west of <br />the approved permanent access road to a stock pond. Approximately <br />60 percent of the drainage from this parcel drains to a low area <br />adjacent to the road, with no opportunity for positive drainage <br />from that point. The remaining 40~ flows to the north along the <br />access road, and would be controlled by a rock filter. <br />- Office Area Seeding - includes some 2.0 Acres on the floodplain <br />immediately adjacent to the Middle Creek Office building. Due to <br />a combination of slope (less than 2$), vegetative cover, and the <br />parcels position in relation to the floodplain, CYCC feels that <br />the current vegetative filter is sufficient in conjunction with the <br />existing perimeter Swale and depression which collects flow from <br />the area. <br />- .Ditch H-1 Area - includes some 2.0 acres immediately below Ditch H- <br />1. Due to the combination of slope, vegetation along the border <br />acting as a filter, and coarse surface fragments, CYCC feels that <br />the current vegetative filter is sufficient, Samples collected <br />during a precipitation event indicate that this is indeed the case. <br />The locations of the referenced small area exemptions are shown on <br />accompanying Mine 3 Stormwater Management Plan Map for CDPS Permit COG- <br />850013 and NPDES Permit CO-0027154. <br />c) DEMONSTRATION AREAS <br />There are three Demonstration Areas associated with the C-81-071 Permit, <br />all of which are located on Mine No. 2. <br />The first, Demonstration Area A, was previously approved when CMLRD <br />approved the elimination of ponds Q, R and S on September 14, 1984. <br />This approval was based upon vegetative cover and water sampling data. <br />Demonstration Area B consists of approximately 70 acres of reclamation <br />which is due for final bond release. Vegetative cover on both parcels <br />involved is greater than that of the pasture reference area. <br />Demonstration Area C consists of some 15 acres below the outslope of <br />Ditch M-1, which is again due for final bond release. Vegetative cover <br />on the area involved is greater than that of the pasture reference area. <br />The locations of these three demonstration areas are shown on the <br />Stormwater Management Plan Map for NPDES Permit CO-0027154. <br />In addition, there is a demonstration area associated with the southern <br />portion of Mine 3 (CDOMG Permit C-84-062). <br />Page 8 <br />