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Rule 2.' Permiu <br />• Ditches will be vaziously armored with rip-rap or equivalent protection against erosive <br />velocities. Rip-rap installations will utilize woven or non-woven geotextiles on a coarse <br />sand base at least three inches in thickness for a filter blanket. The geotextiles will have <br />an EOS of 70 or less. <br />Diversions are designed, constructed and maintained to minimize adverse impacts to the <br />hydrologic balance. Placement will not increase the potential for slides or downstream <br />flooding, nor endanger property or public safety. Diversions will be maintained to <br />prevent additional contributions of suspended solids to streamflow and to runoff outside <br />the permit area to the extent possible, using the best technology currently available. This <br />will be accomplished with measures that include but aze not limited to the maintenance of <br />appropriate gradients, the use of vazious channel linings, revegetation, roughness <br />structures, energy dissipators and detention basins. <br />• <br /> <br />Page 1.05-30a Rulel Permits (Nov.04.01J.doc 2.05-30a (Revised 2/19/03) <br />