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The operator has proposed to work year round using both motorized and non-motorized <br /> equipment. More specifically the operator would work anywhere from two days to <br /> several days a week,as weather permits. <br /> 2. Change the type of equipment- <br /> The operator's original modification included suction dredging. On February 26, 2014, <br /> the operator removed this proposal from the modification. High banking operations will <br /> continue using a pump no more than 8 horsepower and an intake no larger than 3 inches <br /> in diameter. Settling ponds will continue to be utilized to prevent direct runoff into the <br /> river. <br /> Additional digging(small amounts along the working face) and moving of larger <br /> materials may also occur. A small tractor(excavator)will be used to maintain(not <br /> modify)the existing road, aid in site development and reclamation. <br /> 3. Extension of the work area to the west- <br /> The operator would like to extend the current work area from a 20-foot width by 100- <br /> foot length to a 100-125-foot width by 175-200-foot length, or maximum of about 0.60 <br /> acres. This would place the high banking work area at a distance of 100-feet from the <br /> river's edge,with the overall work area edge at a minimum of 20-feet from the river's <br /> edge. The work areas will occur on a bench that was created by stream deposits <br /> containing a matrix of sandy soil mixed with cobbles and boulders. The working face <br /> would be laterally worked in a north-south direction,with mining advancing to the west <br /> and the worked area being filled in, or reclaimed, as the operation advanced. Therefore, <br /> the 0.60 acres would not all be disturbed at the same time. <br /> This deposit pinches out in every direction and is replaced by naturally piled cobbles, <br /> bedrock and the river to the east. Working faces under the current Plan of Operations are <br /> located near the top of this terrace about 10-12 feet vertically above the river's edge <br /> (during low flow) and are expected to be outside the reach of a major flood event, as <br /> well as the strip of riparian area along the river's edge.As mining continues under this <br /> modification the work areas will be further removed from potentially flood prone areas, <br /> due to the advancement moving away from the river. As mining progresses,material will <br /> be removed along the west scarp,processed and placed behind the working face to the <br /> east.Working faces are estimated to range in dimensions of 100'Lx20'Wxl ID to <br /> 1501Lx361Wx20'D. It will likely take 1-2 years for the scarp to move back(to the west) <br /> a few feet. <br /> Additional Information Regarding the Reclamation Plan <br /> As mining progresses and processed material to the east is no longer being disturbed, <br /> reclamation of those areas will be conducted within 1-2 years. A small excavator, limited by the <br /> size of the current road(approximately 60-inches), is proposed for periodic use to remove the <br /> topsoil from work areas on the terrace in preparation for hand-digging operations. This topsoil, <br /> which is very sandy,will continue to be stockpiled on the southwest side of the site and used for <br />