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11. Temporary Recreational Structures. Temporary buoys, markers, small floating docks, and similar structures <br /> placed for recreational use during specific events such as water skiing competitions and boat races or seasonal use <br /> provided that such structures are removed within 30 days after use has been discontinued. At Corps of Engineers <br /> reservoirs, the reservoir manager must approve each buoy or marker individually. (Section 10) <br /> 12. Utility Line BacI ll and Bedding. Discharges of material for backfill or bedding for utility lines, including <br /> outfall and intake structures, provided there is no change in preconstruction contours. A "utility line" is defined <br /> as any pipe or pipelief for the transportation of any gaseous, liquid, liquefiable, or slurry substente,for any purpose, <br /> and any cable, line, or wire for the transmission for any purpose of electrical energy, telephone and telegraph <br /> messages, and radio and television communication. The term "utility line" does not include activities which drain <br /> a water of the United States, such as drainage tile, however, it does apply to pipes conveying drainage from another <br /> area. Material resulting from trench excavation may be temporarily sidecast (up to three months) into waters of the <br /> United States provided that the material is not placed in such a manner that it is dispersed by currents or other <br /> forces. The DE may extend the period of temporary side - casting up to 180 days, where appropriate. The area of <br /> waters of the United States that is disturbed must be limited to the minimum necessary to construct the utility line. <br /> In wetlands, the top 6" to 12" of the trench should generally be backfilled with topsoil from the trench. Excess <br /> material must be removed to upland areas immediately upon completion of construction. Any exposed slopes and <br /> strearnbanks must be stabilized immediately upon completion of the utility line. The utility line itself will require <br /> a Section 10 permit if in navigable waters of the United States. (See 33 CFR Part 322). (Section 404) <br /> 13. Bank Stabilization. Bank stabilization activities necessary for erosion prevention provided: <br /> a. No material is placed in excess of the minimum needed for erosion protection; <br /> b. The bank stabili7ntion activity is less than 500 feet in length; <br /> c. The activity will not exceed an average of one cubic yard per running foot placed along the bank below <br /> the plane of the ordinary high water mark or the high tide line; <br /> d. No material is placed in any special aquatic site, including wetlands; <br /> e. No material is of the type or is placed in any location or in any manner so as to impair surface water flow <br /> into or out of any wetland area <br /> f. No material is placed in a manner that will be eroded by normal or expected high flows (properly anchored <br /> trees and treetops may be used in low energy areas); and, <br /> g. The activity is part of a single and complete project. <br /> Bank stabilization activities in excess of 500 feet in length or greater than an average of one cubic yard per <br /> running foot may be authorized if the permittee notifies the district engineer in accordance with the "Notification" <br /> general condition and the district engineer determines the activity complies with the other terms and conditions of <br /> the nationwide permit and the adverse environmental impacts are minimal both individually and cumulatively. <br /> (Sections 10 and 404) <br /> 4 <br />