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3.03 <br />into existing water bodies, must be installed, constructed or, in case of vegetative buffers, <br />protected from disturbance, as a first step in the land alteration process. <br />E. Working in or Crossing Waterways or Water Bodies: Land alteration and construction <br />shall be minimized in both permanent and intermittent waterways and the immediately <br />adjacent buffer of 25 feet from top of bank of the waterways and the buffer area whenever <br />possible, and barriers shall be used to prevent access. Where in channel work cannot be <br />avoided, precautions must be taken to stabilize the work area during land alteration, <br />development and/or construction to minimize erosion. If the channel and buffer area are <br />disturbed during land alteration, they must be stabilized within three (3) calendar days <br />after the in channel work is completed. <br />Silt curtains or other filter/siltation reduction devices must be installed on the downstream <br />side of the in channel alteration activity to eliminate impacts due to increased turbidity. <br />Whenever stream crossings are required, properly sized temporary culverts shall be <br />provided by the Contractor and removed when construction completed. The area of the <br />crossing shall be restored to a condition as nearly as possible equal to that which existed <br />prior to any construction activity. <br />F. Swales, Ditches and Channels: All swales, ditches and channel leading from the site shall <br />be sodded within three (3) days of excavation. All other interior swales, etc., including <br />detention areas will be sodded prior to substantial completion. <br />G. Underground Utility Construction: The construction of underground utility lines and other <br />structures shall be done in accordance with the following standards: <br />1. No more than 100 lineal feet of trench shall be open at any time; <br />2. Wherever consistent with safety and space consideration, excavated material shall be <br />cast to the uphill side of trenches. Trench material shall not be cast into or onto the <br />slope of any stream, channel, road ditch or waterway. <br />PERFORMANCE <br />A. Maintenance: All erosion and siltation control devices shall be checked regularly, <br />especially after each rainfall and will be cleaned out and/or repaired as required. <br />B. Compliance: Failure to comply with the aforementioned requirements may result in a fine <br />and/or more stringent enforcement procedures such as, but not limited to, issuance of a <br />"Stop Work Order". <br />END OF SECTION <br />02270 - 2 <br />02270 — Erosion Control <br />