for review by user groups, river interests, and citizens to assure the proper 

 application of the criteria and standards. There is no requirement that total 

 consensus be achieved. Differences will be noted as such. 



Scope of Effort 



Initially, any river segment with a significant resource value known to a 

 resource expert should be included in the Rivers Study. Perennial streams 

 which appear on 1:100,000 scale maps will be included. Generally, values 

 within 1,000 feet of a stream will be included. If streams must be excluded, 

 the following can be used to determine stream exclusion: 



1. Intermittent streams; 



2. Small tributaries; 



3. Federal institutional constraints (e.g., National Parks, etc.). 



Other exclusion criteria may be identified by state study staff and used 

 following approval by the regional staff. Connected streams may be clustered 

 where resource values are of consistent quality. 



River Reach Determination 



River segments may be any reasonable length greater than one mile. Normally, 

 segments will be 10 miles or more. Each study coordinator should identify 

 appropriate reach lengths for his state for each resource category consistent 

 with the budget, time available, and map scales to be used. 



Value Classes 



Value classes are the resource significance levels that are assigned to river 

 segments to denote their value. Participants will assign one of 4 value 

 classes to each river reach to denote its relative significance to a given 

 resource category. As applicable, an "Unknown or Unclassified" or "Resource 

 Not Present" designation may be given in lieu of a rating. 



Value Class Definition 



1 Unique or Outstanding Resources 



2 Substantial Resources 



3 Moderate Resources 



4 Limited Resources 



5 Unknown or Unclassified 



6 Resource Not Present 



Data Presentation 



° Data Entry Forms 



Senior resource experts have prepared river resource rating forms for each 

 state level effort. These forms will be used to present pertinent background 

 information and to document evaluation decisions. Individual cells on each 

 data form will reflect the scores for each criteria. The form briefly notes 

 features of the segment which give it value, sums values, and assigns value 

 class. The form provides space for additional descriptive information 

 regarding individual segments. As applicable, segment descriptions will be 

 included on the data forms. State coordinators have identified a 

 comprehensive coded list of rivers for each state. Lists will be made 



