New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Wt - Wetlands Programs
Chapter Env-Wt 400 - DELINEATION AND CLASSIFICATION OF JURISDICTIONAL AREAS; CLASSIFICATION OF PROJECTS
Part Env-Wt 407 - BASIS FOR CLASSIFICATION OF PROJECTS
Section Env-Wt 407.03 - Jurisdictional Area Size Thresholds; Measuring Watercourse Length

Universal Citation: NH Admin Rules Env-Wt 407.03

Current through Register No. 13, March 27, 2025

(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)	[GREATER THAN EQUALS TO] 3,000 SF to < 10,000 SF	[GREATER THAN EQUALS TO] 10,000 SF
Watercourse	< 50 linear feet (LF)	[GREATER THAN EQUALS TO] 50 LF to < 200 LF	[GREATER THAN EQUALS TO] 200 LF

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

(1) Is subject to an adjustment under Env-Wt 407.02;

(2) Qualifies for a PTE under Env-Wt 407.04; or

(3) Qualifies for project-specific size criteria as identified in Env-Wt 407.04, Table 407-2.

(1) For intermittent watercourses, the distance shall be measured along the thread of the channel; and

(2) For perennial watercourses, the total distance shall be calculated by summing the lengths of the disturbance to the channel and the banks.

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