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into existingwater bodies, must be installed constructed or, in case of vegetative buffers <br /> g , <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 /> 3 . 03 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 — Erosion Control <br /> 02270 - 2 <br />