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Regional General Permit Notification for Grisenti Farms Gravel Pit Bank Stabilization Project <br /> Fremont County,Colorado <br /> Corps File No.RGP-37 <br /> Avoidance and Minimization of Impacts <br /> Efforts would be made to minimize impacts on the streambed and existing woody vegetation to the <br /> maximum extent possible;however,due to the primary purpose of the project(channel improvements), <br /> impacts on waters of the U.S.are unavoidable. Measures that would be implemented during <br /> construction to help minimize impacts on vegetation include installing temporary fencing to define <br /> construction limits and deterring access into areas that are not to be impacted. <br /> In addition to avoiding and minimizing direct impacts,water quality Best Management Practices(BMPs) <br /> would be implemented during construction to minimize indirect impacts on the stream channel and <br /> adjacent areas. Standard BMPs such as the use of sediment-control logs,construction limits staking and <br /> fencing,and vehicle tracking control at the site entrance would be implemented. <br /> Best Management Practices <br /> In addition to minimizing impacts during the design process,standard water quality BMPs would be <br /> established and maintained during construction to minimize the potential of sediment reaching areas <br /> outside the project area. All temporarily disturbed areas would be returned to pre-project conditions <br /> following completion of the proposed activities. <br /> Mitigation <br /> Transit Mix is not proposing specific compensatory wetland mitigation because less than 0.10 acre of <br /> wetlands would be impacted by the proposed project. <br /> Compliance with Nationwide and Regional Permit Conditions <br /> As proposed,the project would comply with all general and regional conditions associated with current <br /> nationwide and regional permits. Of particular relevance, no habitat for threatened or endangered <br /> species occurs in the project area in compliance with General Condition 18 and the ESA;and Transit Mix <br /> is currently unaware of any historic properties listed on,determined to be eligible for listing on,or <br /> potentially eligible for listing on the National Register of Historic Places in compliance with General <br /> Condition 20 and the NHPA. Specific to RGP-37,an average of 0.66 cubic yard per running foot of fill <br /> would be placed within the channel below the OHWM for installation of the bank protection in the <br /> project area. Additionally,the cross vanes would be installed at an angle of 30 degrees upstream <br /> perpendicular to the stream bank. <br /> ERO Project#7141 10 <br /> 16 <br />