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Road Use <br />There are short segments of dirt roads dedicated for access to Level 3 and Level 6. As such, they <br />are considered part of the ongoing operations and included in the existing CDPHE stormwater <br />permit. They are also `dedicated' to the Level 3 and Level 6 pads meaning they terminate at <br />these features and are considered by MSHA to be a part of the mine site. As a result, the current <br />operator has installed significant engineered features to accommodate the CDPHE stormwater <br />management plan with the placement of culverts, run-on ditches and run-off controls; as well as <br />MSHA-berms for miner/traffic protection. Given the level of activity and work associated with <br />the roads it is apparent that the surface area associated with them be included in the amendment. <br />Deadman Gulch Channelization <br />Deadman Gulch is a subterranean flow pathway associated with the Deadman Gulch fault which <br />occurs along the south edge of the Level 6 pad. The gulch historically occurred within saturated <br />alluvium underneath the pad, and emerged in the form of seeps down the fault zone. Due to <br />concerns raised by various agencies, the flows from the Gulch were isolated (brought to the <br />surface) by excavation of the alluvium, and then contained within a geotextile lined channel, in <br />order to exclude contact of the water from the Level 6 waste rock pile. The geotextile channel <br />was constructed to accommodate `anticipated flows' since surface flows were never before able <br />to be measured; however history indicated a baseline flow of possibly < 1 cfs. The geotextile <br />channel was constructed to `follow the contour' along the hill slope (thus keeping equipment on <br />a manageable slope) since this allows for the use of necessary heavy equipment, and would <br />maintain the integrity of the geotextile sheets which were laid like shingles with the use of <br />anchors and cement nails. During the Fall of 2007; the constructed channel was visited and <br />reviewed by BLM and DRMS and found to be potentially sufficient. It was agreed that any <br />further channel amendment would be designed based on the observed 2008 flows. Unfortunately, <br />due to unseasonable snow melt, a significant amount of water pulsed through the channel, <br />saturated the forested hillside and created a landslide. [This landslide resulted in the Notice of <br />Violation submitted by DRMS. This amendment represents a formal required response <br />component to the recommendations set forth in the DRMS Board hearing which evaluated this <br />condition. ] Given the failure of the geotextile channel, a revised/engineered design was obtained <br />in order to capture Gulch flows initially within the channel, and then routed into a culvert which <br />would descend along the edge/face of the Level 6 waste rock pile. This amendment captures the <br />surface area associated with the reclamation of the land slide area, as well as the area needed for <br />the proposed culvert. <br />6