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<br />0018)6 <br /> <br />2. Claim Site Selection <br /> <br />Each site was chosen based upon a number of criteria. First, the stream reach had to be <br />alluvial and adjustable. Secondly, streamflow, sediment transpon. and other data had to be <br />available, or possible to collect. In order to make these determinations. a review was made of <br />sites in Idaho with stream gages (both in current operation and discontinued) operated by the <br />United States Geological Survey (USGS) or the Forest Service on or near National Forest lands. <br />At the candidate sites, consideration was given to the drainage size and stream channel <br />characteristics, the length of streamflow record, the duration of gage operation throughout the <br />year, the consistency of streamflow records, the availability of and number of years of sediment <br />transpon data, and the ability to collect additional sediment transpon data. Consideration was <br />given to the proximity of year-around operating gages to those Forest Service gages which are <br />operated on a seasonal basis. <br /> <br />3. Fluvial Process Study Sites <br /> <br />Fluvial process study sites are sites where data existed or could be collected to extend the <br />understanding of hydrologic and geomorphic factors maintaining streams. Many of the fluvial <br />process study sites were pan of an ongoing study by Dr. Peter Whiting who was independently <br />investigating sediment transport processes in mountain streams in Idaho. Dr. Whiting's study, a <br />research joint venture agreement between the Forest Service, Rocky Mountain Research Station, <br />and Case Western Reserve University, was confined to streams with the majority of their <br />drainage elevations above 4,000 feet and having drainage areas less than 150 mi2 (Whiting et a/" <br />1997). Of these, six locations were selected for detailed study: Thompson Creek, Squaw Creek <br />(USGS), Herd Creek, Fourth of July Creek, Valley Creek, and Marsh Creek, all in the upper <br />ponions of the Salmon River Basin. Secondary sites were also selected where some streamflow <br />and sediment transpon data had been collected previously by the Forest Service. The sites <br />include: four tributaries to the South Fork Salmon River; Dollar Creek, Blackmare Creek, Little <br />Buckhorn Creek, and West Fork Buckhorn Creek; Eggers Creek in the Payette River Basin; <br />Hawley Creek and Squaw Creek (USFS) on the Salmon National Forest; Fish Creek and <br />Canyon Creek on the Clearwater National Forest; Catspur Creek on the Idaho Panhandle <br />National Forest; and Johns Creek and Trapper Creek on the Nez Perce National Forest. <br />Additional fluvial process study sites include Little Granite Creek, a study site of Dr. William <br />Emmett in the Upper Snake River basin in Wyoming and Johnson Creek on the Boise National <br />Forest. <br /> <br />Figure 2 shows the location of the 19 fluvial process study sites. Tables in Appendix 2 <br />provide names and legal locations for the gages and study reaches associated with the fluvial <br />process study sites. In addition, maps showing the exact location of the study sites are included <br />in Appendix 2. <br /> <br />United States' Expert Report Disclosing Melhodologies for Quanlificallon of Organic Ad Claims Consolidated Subcase No. 63-25243 <br /> <br />16 <br />