• STEP 7 - Determine Wetland Boundary. Mark on the base map all com- 

 munity types determined to be wetlands with a W and those determined to 

 be nonwetlands with an N. Combine all wetland community types into a 

 single mapping unit. The boundary of these community types is the 

 interface between wetlands and nonwetlands. 



Subsection 2 - Onsite Inspection Necessary 



63. This subsection describes procedures for routine determinations in 

 which the available information (Section B) is insufficient for one or more 

 parameters. If only one or two parameters must be characterized, apply the 

 appropriate steps and return to Subsection 1 and complete the determination. 



A flowchart of steps required for using this method is presented in Figure 14, 

 and each step is described below. 

 Equipment and materials 



64. The following equipment and materials will be needed: 



a. Base map (Section B, STEP 2). 



b. Copies of DATA FORM 1 (one for each community type and 

 additional copies for boundary determinations) . 



c. Appendices C and D. 



d. Compass. 



e. Soil auger or spade (soils only) . 



f. Tape (300 ft). 



g. Munsell Color Charts (Munsell Color 1975) (soils only). 

 Procedure 



65. Complete the following steps, as necessary: 



• STEP 1 - Locate the Project Area. Determine the spatial boundaries 

 of the project area using information from a USGS quadrangle map or 

 other appropriate map, aerial photography, and/or the project survey 

 plan (when available). PROCEED TO STEP 2. 



• STEP 2 - Determine Whether an Atypical Situation Exists. Examine the 

 area and determine whether there is evidence of sufficient natural or 

 human-induced alteration to significantly alter the area vegetation, 

 soils, and/or hydrology. NOTE: Include possible offsite modifications 

 that may affect the area hydrology. If not, PROCEED TO STEP 3. 



57 



