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Lamar Gravel Wetland Delineation Ecological Resource Consultants,Inc. <br /> direct surface connection to the Arkansas River, Wetland B would be subject to jurisdiction under <br /> the Clean Water Act. <br /> Table 3. Identified H dro h tic Vegetation <br /> Scientific Name Common Name R . 5 Indicator Status* <br /> Po ulus an usti olium narrowleaf cottonwood OBL <br /> Phalaris arundinacea reed canary grass FACW+ <br /> Salix exi ua sandbar willow OBL <br /> OBL=obligate wetland-occurs an estimated 99%in wetlands <br /> FACW=facultative wetland-occurs an estimated 67%-99%in wetlands <br /> FAC=facultative-equally occurs in non-wetlands as wetlands <br /> 7.0 Summary <br /> ERC conducted a jurisdictional delineation of wetland and waters of the U.S. for the 300 acre <br /> Study Area in Prowers County, CO on August 13, 2007. ERC reviewed the Study Area and <br /> determined that no wetlands/waters are present within the Study Area. <br /> ERC identified and delineated two wetlands located immediately adjacent to the Study Area. <br /> Neither Wetland A nor Wetland B is located within the Study Area. Although neither wetland is <br /> located within the Study Area, both Wetland A and Wetland B are subject to jurisdiction under <br /> the Clean Water Act due to their direct surface connection to the Arkansas River. The placement <br /> of fill material or any general land disturbance within the mapped Waters of the US/Jurisdictional <br /> wetland will require prior authorization from the USACE. The attached Wetland Delineation Map <br /> dated August 31,2007,represents the delineated wetlands and waters adjacent to the Study Area. <br /> The USACE has final authority over validation of exact jurisdictional wetland boundary location <br /> established by consultants. Therefore ERC recommends that this report be submitted to the <br /> USACE Southern Colorado Regulatory Office (200 South Santa Fe Avenue, Suite 301, Pueblo, <br /> CO 81003)for written verification and jurisdictional determination prior to construction. <br /> This report has been prepared by: <br /> Ecological Resource Consultants,Inc. <br /> Kristin A. Sundberg <br /> Ecologist <br /> This report has been reviewed and approved by: <br /> David J. Blauch <br /> V.P., Senior Ecologist <br /> 6 <br />