b. Has a major man-induced change in hydrology that occurred in 

 the past caused a former deepwater aquatic habitat to become 

 significantly drier? 



c. Has man-induced stream channel realignment significantly 

 altered the area hydrology? 



d. Has the area been subjected to long-term irrigation practices? 

 If the answer to any of the above questions is YES, document the 

 approximate time during which the change in hydrology occurred, and 

 PROCEED TO STEP 2. If the answer to all of the questions is NO, proce- 

 dures described in Section D or E must be used. 



• STEP 2 - Determine Whether a Permit Will be Needed if the Area is 

 Found to be a Wetland. Consider the current CE regulations and policy 

 regarding man-induced wetlands. If the type of activity resulting in 

 the area being a potential man-induced wetland is exempted by regula- 

 tion or policy, no further action is needed. If not exempt, PROCEED TO 

 STEP 3. 



• STEP 3 - Characterize the Area Vegetation, Soils, and Hydrology. 

 Apply procedures described in Section D (routine determinations) or 

 Section E (comprehensive determinations) to the area. Complete the 

 appropriate data forms and PROCEED TO STEP 4. 



• STEP A - Wetland Determination. Based on information resulting from 

 STEP 3, determine whether the area is a wetland. When wetland indi- 

 cators of all three parameters are found, the area is a wetland. When 

 indicators of hydrophytic vegetation and wetland hydrology are found 

 and there is documented evidence that the change in hydrology occurred 

 so recently that soils could not have developed hydric characteristics, 

 the area is a wetland. In such cases, it is assumed that the soils are 

 functioning as hydric soils. CAUTION: If hydrophytio vegetation is 

 being maintained only because of man-induced wetland hydrology that 

 would no longer exist if the activity (e.g. irrigation) were to be 

 terminated, the area should not be considered a wetland. 



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