Specifications include, but are not limited to:. The 17 pond maintenance sites must be excavated with a backhoe and/or small bulldozer and then finished smooth with a skid steer, or mini-ex type equipment to the original depth of each pond. The sediment to be removed consists of fine grained, eroded soils with some gravel and smaller rocks. Removed sediment must be placed on the downhill side of each pond. Original depth varies between pond sites, but will be easily identified as it is a much harder, distinguishable layer than the sediment layer to be removed. The cleaned pond bottom must then be evenly lined with a layer of bentonite clay to help seal the bottom and limit water loss through seepage. Each site will require 1-2 tons of sealant. . This project has been planned at a time of year when most, if not all of the ponds to be maintained will not have any water in them. Any water present will be minimal and should not interfere with work. UDWR will work with the contractor to help resolve any complications due to excess water at a pond site. . The three new pond sites will require excavation of previously undisturbed soil. Each pond will be approximately 50 feet in diameter with a maximum depth of 8-10 feet. Removed material must be placed on the downhill side of each pond. The new pond bottom must then be evenly lined with a layer of bentonite clay to help seal the bottom and limit water loss through seepage. Each site will require 1-2 tons of sealant.