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i <br /> Exempt Allowable Allowable Pjrohibited <br /> with <br /> Mitigation <br /> Overhead electric utility lines: <br /> • Impacts other than perpendicular crossings in Zone 2 X <br /> Only3 <br /> • Impacts other than perpendicular crossings in Zone 1 "2-3 X <br /> • Perpendicular crossings that disturb equal to or less than X <br /> 150 linear feet of riparian buffer' <br /> • Perpendicular crossings that disturb greater than 150 X <br /> linear feet of riparian buffer' Z <br /> �I <br /> Periodic maintenance of modified natural streams such as <br /> canals and a grassed travelway on one side of the surface X <br /> water when alternative forms of maintenance access are not <br /> practical <br /> Provided that,in Zone 1,all of the following BMPs for overhead utility lines are used. If all of these BMPs are not <br /> used,then the overhead utility lines shall require a no practical alternative evaluation by the Division. <br /> • A minimum zone of 10 feet wide immediately adjacent to the water body shall be managed such that only vegetation <br /> that poses a hazard or has the potential to grow tall enough to interfere with the line is removed. <br /> • Woody vegetation shall be cleared by hand. No land grubbing or grading is allowed. <br /> • Vegetative root systems shall be left intact to maintain the integrity of the soil. Stumps shall remain where trees are <br /> cut. <br /> • Rip rap shall not be used unless it is necessary to stabilize a tower. <br /> • No fertilizer shall be used other than a one-time application to re-establish vegetation. <br /> • Construction activities shall minimize the removal of woody vegetation,the extent of the'disturbed area,and the time <br /> in which areas remain in a disturbed state. <br /> • Active measures shall be taken after construction and during routine maintenance to ensure diffuse flow of <br /> stormwater through the buffer. <br /> • In wetlands,mats shall be utilized to minimize soil disturbance. <br /> 2 Provided that poles or towers shall not be installed within 10 feet of a water body unless the Division completes a nq <br /> practical alternative evaluation. <br /> 3 Perpendicular crossings are those that intersect the surface water at an angle between 75°and 105°. <br /> II! <br /> �2 <br />