United States Department of Agriculture
Natural Resources Conservation Service
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Stream Segment Classes

A. Stream management supports fish = Class 1.

A. Does not support fish.

B. Has surface flow 6 months or more
a. Contributes surface flow to stream, lake, or other body of water = Class 1.
b. No surface flow contribution = Class 2.

B. Surface flow less than 6 months
a. Contributes surface flow to stream, lake, or other body of water = Class 2.
b. Rarely contributes to surface flow = Class 3.

"Stream" means a natural watercourse of perceptible extent that has a generally sandy or rocky bottom or definite banks and that confines and conducts continuously or intermittently flowing water.

Note: This key is not intended to replace the rules, but to serve as reference for the broad points of them. The definitions and specific conditions detailed in the rules are essential for proper SMZ implementation.

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Last Modified: 07/05/2007