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nutrients or organic matter, therefore, successful establishment of a more extensive cover may not <br />be possible. <br />Portions of some facilities, including parts of the Dutch Creek Diversion and the Old Refuse Disposal <br />Area are located on both public and private property. A relatively minimal amount of sediment <br />delivery from these structures to Dutch and Coal Creeks may be expected in the future. <br />Coal Basin is a naturally occurring erosional feature on the southerly most extension of the Grand <br />Hogback. As a result, Coal and Dutch Creeks, as well as their tributaries move great amounts of <br />sediment annually. This is due to the natural geologic and hydrologic characteristics of Coal Basin. <br />As a result, the channels tend to migrate over time, frequently abandoning old channels and <br />establishing new ones. These processes allow for the removal and deposition of sediment within <br />the stream systems. It is because of these processes that Coal and Dutch Creeks carry a noticeably <br />significant amount of sediment annually. <br />The Dutch Creek Diversion was built to be an active, migrating channel, mimicking the natural <br />stream tendencies found in Coal Basin. As a result, migration of the channel is expected to occur <br />over time. When the channel moves, generally during intense summer rain storms, but periodically <br />due to spring runoff, both erosional and depositional processes will occur within the channel. <br />Some release of sediment from the channel is expected to occur during these events. <br />The Sutey Refuse Disposal Area is located on public lands managed by the White River National <br />Forest, while portions of the Old Refuse Disposal Area and a portion of the Coal Creek access road <br />are located on both public and private lands. The disposal area facilities have been reclaimed and <br />sediment generation issues have been minimized to the extent possible at these locations. <br />VI. Observation and Findings <br />Site Inspection History <br />While Coal Basin Mine was an active and inactive mine, it was inspected monthly according to Rule <br />5.02.2. In Sept 2007 after the reclamation work had been accomplished, the inspection frequency <br />was reduced to a seasonal basis as allowed by Rule 5.02.2(8). The site was inspected in May of <br />each year or at the first opportunity when snow conditions allowed access. This first seasonal <br />inspection was a complete inspection documenting ground conditions after spring runoff had <br />effectively ceased. The second seasonal inspection was done in the fall following any site <br />maintenance activities that may have been conducted during the field season. This inspection plan <br />12 <br />