Part 516 - Exhibits 

 516.23 



(516.23 MINIMAL EFFECT DETERMINATION KEY FOR SHORT TERM CONVERSIONS 

 Wetlands must be considered completely restored before procedure 

 applies. 



(1) Herbaceous wetlands 



(a) Wetland farmed, or had no vegetation or only annual 

 herbaceous vegetation at the time of conversion c. 



(b) Wetland not farmed and had perennial herbaceous 

 vegetation at time of conversion d. 



(c) 



(1) No significant precipitation events occurred 

 during the period of conversion to enable the detection of 

 measurable runoff or recharge Minimal effect 



(2) Significant precipitation events occurred during 

 the period of conversion to enable the detection of runoff or 

 recharge f . 



(d) 



(1) Perennial herbaceous wetland vegetation 

 considered fully restored e. 



(2) Perennial herbaceous wetland vegetation not 

 considered fully restored Minimal effect not possible 



(e) 



(1) No significant precipitation events occurred 

 during the period of conversion to enable the detection of 

 measurable runoff or recharge Minimal Effect * 



(2) Significant precipitation events occurred during 

 the period of conversion to enable the detection of measurable 

 runoff or recharge Minimal effect not possible 



* Significance of effects must be considered by interagency team 

 to determine if effects are minimal. 



516-50 



(180-V-NFSAM, Second Ed., Amend. 6, May 1991) ^ 



