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<br />. <br /> <br />~ <br />-.J J. <br />o <br />O'J <br /> <br />. <br /> <br />-. <br /> <br />K. <br /> <br />2' Adverse Impacts............................... <br />a' Fisheries................................. <br />b' Recreat ion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />g. Conclusions....................................... <br />5. Supporting Data for Impact Analysis................... <br />Problems Encountered in Application of the Methodology.... <br />1. Problems in Obtaining Physical Data................... <br />a. Misunderstandings Due to Unfamiliarity with the <br /> <br />Methodo logy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />l' Obtaining Data for Reach Simulation........... <br />2' Recreational Potential versus Recreational <br />Use.......................................... . <br />b. Stream Classification and Representative Reaches.. <br />l' A Representative Reach Is a Simulated Reach... <br />2' Classification and Selection of Candidate <br /> <br />Reaches. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />3' Criteria for Selecting Candidate Reaches...... <br />4' Initial Assumptions in UCRB Assessment........ <br />5' Number of Representative Reaches.............. <br />6' Geologic Complications........................ <br />7' Stream Reaches and Recreation Analysis........ <br />8' Avoidance of Representative Reach Problems.... <br />c. Avail abi 1 ity of Hydrologic Data................... <br />l' Short-Term Stations................... ........ <br /> <br />2' Median Flows.................................. <br />2. Problems Arising from Present Limitations of the Model <br />or Methodo 1 ogy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />3. Problems in Interpretation of Model Output............ <br />a. Channel Maintenance............................... <br />b. Temperature and Water Quality Changes... .......... <br />c. Net Impact on Fisheries........................... <br />d. Substrate Infl uences. ....... .. . .. .... '" . .... .. '" <br />e. The Egg Life-Stage and Related Considerations..... <br />f. "Critical" periodS for Recreation................. <br />Interregional and Intraregional Aspects................... <br />1. Intended Purpose for Section 13(a) Assessment Methodo- <br /> <br />logy................................................. . <br />2. Nature of Compari sons. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />3. EET's Considered in this Assessment................... <br />4. Location, Selection, and Scoping of EEl Development... <br />5. Final Input in Relation to Initial CIFSG Objectives... <br />Effectiveness and Usefulness of the Methodology........... <br /> <br />1. Implementation................. '.' ..................... <br />2. Input to Assessment.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />3. Capability for Consideration of Tradeoffs and Mitiga- <br /> <br />t i on Measures... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />4. Interregional Compari sons.. .,. .,. . ... ... .... ., ...... " <br />Recommendations for Use in Future Reconnaissance-level <br /> <br />Investigations........................ .................... <br />1. Fundi ng. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />2. Personnel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . <br />3. Mutual Understanding.................................. <br /> <br />L. <br /> <br />M. <br /> <br />iii <br /> <br />Page <br />