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Mulching procedures specified below shall be applied to seeded areas according <br />to their designation by slope steepness. Two slope types are identified: <br />1. Less than approximately 33%. <br />2. Greater than 33%. <br />On slopes less than approximately 33%, any one of two mulching procedures <br />shall be used: <br />1. Hay or straw mulch, crimped <br />2. Hydromulch with tackifier <br />On slopes greater than approximately 33% and one of three mulching procedures <br />shall be used: <br />1. Hay or straw mulch with non-asphalt tackifier <br />2. Hay or straw mulch with netting <br />3. Hydromulch with tackifier. <br />Mulching procedures shall be used according to the specifications below: <br />Hay or straw mulch, crimped <br />Hay or straw mulch shall be applied uniformly at a rate of two tons <br />per acre. Mulch shall be pest and weed free. Approximately 30 <br />percent by weight of the mulch material shall be ten inches in length <br />or longer. Rotted, caked, decayed or moldy material will not be <br />accepted. A mulch crimper shall be used to anchor the mulch into the <br />soil after the hay or straw has been spread. The crimper shall be <br />equipped with scrapers to keep the blades clean. Spacing of crimper <br />blades shall not exceed nine inches. On areas less than one acre, <br />crimping may be achieved by hand with a suitable tool, such as a <br />spade, on eighteen inch centers. <br />2. Hav or straw mulch with tackifier <br />Hay or straw mulch shall be applied as in treatment number 1 above, <br />except for crimping. Anon-asphalt tackifier shall be applied <br />uniformly over the mulch at a rate of 120 pounds per acre or, in <br />accordance with manufacturer's recommendations. <br />3. Hay or straw mulch with netting <br />Hay or straw mulch shall be applied as in treatment number 1 above, <br />except for crimping. Erosion control netting shall be applied over <br />the straw. The erosion control netting shall be AMXCO polypropylene <br />netting as manufactured by American Excelsior Company, or equivalent. <br />The netting shall be extruded polypropylene with approximately 1.5 <br />x 1.3 strands per inch, with a mesh opening of approximately 5/8" x <br />3/4". The netting shall be green. <br />_lp_ <br />