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<br />far suggest that they are clean. Candidate acquisition/restoration <br />sites will continue to be screened for contaminants. <br /> <br />HvdroloavlGeomorpholoav (See annual report attached) <br /> <br />Construction (levee-breaching) oversight was provided for Bonanza <br />Bridge. the Stirrup. and Old Charley Diked during March/April 1997. <br /> <br />Pre-acquisition floodability assessments were conducted for 9 <br />privately-owned properties along the Green River: 2 properties along <br />the Colorado River; and 2 properties along the Gunnison River. <br />Preliminary results are being provided to appraisers to help determine <br />easement values. Results will be used to evaluate' floodability <br />enhancement options. assuming easement negotiations are successful. <br /> <br />Post-restoration surveys were conducted for Bonanza Bridge. the <br />Stirrup. and Old Charlie Diked, Preliminary results suggest that <br />sediment deposition may be a problem at Bonanza and the Stirrup: both <br />sites are now estimated to begin flooding when Jensen flows exceed <br />16.000 cfs (as opposed to 13.000 cfs). Post-restoration monitoring. <br />which includes site topography. main channel cross-sections. stage- <br />discharge relationships. and levee notches. will continue. <br /> <br />) <br /> <br />Final report was completed for data collected during 1996: "FLO <br />Engineering, 1997. Green River floodplain habitat restoration <br />investigation. Bureau of Land Management sites and Ouray National <br />Wildlife Refuge sites near Vernal. Utah. Final Report September 1997." <br /> <br />Color infra-red photos were collected for the Green River during 1997 <br />spring peak flows: color aerial photos were collected for the Colorado <br />River during runoff. The photos will help identify the most floodable <br />areas as acquisition/restoration priorities. <br /> <br />Environmental Compliance <br /> <br />Compliance with federal and State environmental laws is necessary prior <br />to acquisition and/or restoration of sites. Assessments are needed to <br />cover NEPA. 404 permits. water rights. water quality regulations. <br />Section 7. floodplain regulations. etc. <br /> <br />The BR-Provo Office began NEPA for 10 sites along the Green River (5 <br />sites on BLM lands and 5 sites on FWS lands) in February 1996. Two of <br />the sites (Wyasket and Sheppard) were dropped from consideration <br />because of issues that could not be resolved in a timely manner. The <br />Final EA and FONS! for the remaining 8 sites came out in February 1997 <br /> <br />3 <br />