1. (a) Subject to (b), below, projects shall be classified based on size as shown in Table 407-1, below:

   Table 407-1: Classification Based on Size of Impact

   Type of Jurisdictional Area

   Minimum

   Minor

   Major

   Other than watercourse

   < 3,000 square feet (SF)

   ≥ 3,000 SF to < 10,000 SF

   ≥ 10,000 SF

   Watercourse

   < 50 linear feet (LF)

   ≥ 50 LF to < 200 LF

   ≥ 200 LF

2. (b) Projects shall not be classified based on Table 407-1 if the project:

   1. (1) Is subject to an adjustment under Env-Wt 407.02;
   2. (2) Qualifies for a PTE under Env-Wt 407.04; or
   3. (3) Qualifies for project-specific size criteria as identified in Env-Wt 407.04, Table 407-2.

3. (c) Unless otherwise specified for a particular purpose, watercourse length measurements shall be made as follows:

   1. (1) For intermittent watercourses, the distance shall be measured along the thread of the channel; and
   2. (2) For perennial watercourses, the total distance shall be calculated by summing the lengths of the disturbance to the channel and the banks.

Source. #12804, eff 12-15-19; amd by #13124, eff 10-23-20