Section Env-Wq 1502.58 - Significantly alter the characteristics of the terrain"Significantly alter the characteristics of the terrain" means to undertake any activity anywhere in the state that changes or disturbs the terrain so as to impede the natural runoff or create an unnatural runoff. Examples of activities that significantly alter the characteristics of the terrain include, but are not limited to:
(a) Timber harvesting operations as covered by RSA 485-A:17, IV;(b) Earth moving activities that result in a temporary or permanent disturbance of an area that, over a 10 year period, cumulatively exceeds 100,000 square feet of contiguous area or cumulatively exceeds 50,000 square feet of contiguous area, as calculated in accordance with Env-Wq 1503.12, if any portion of the disturbance is within the protected shoreland as defined in RSA 483-B; or(c) Earth moving activities within the protected shoreland, as defined in RSA 483-B, that result in a temporary or permanent disturbance of an area that: (1) Is more than 2,500 square feet in size;(2) Any portion is within 50 feet of any surface water;(3) Is sloped such that runoff is in the direction of the surface water; and(4) Is subject to runoff over land having an average grade of 25% or greater over a distance of 50 feet or more measured in an upgradient direction from a starting point anywhere within the area described in (1) - (2) above.N.H. Admin. Code § Env-Wq 1502.58
(See Revision Note #1 at chapter heading for Env-Wq 1500) #9343, eff 1-1-09
Amended by Volume XXXVII Number 32, Filed August 10, 2017, Proposed by #12342, Effective 8/15/2017, Expires 8/15/2027.Amended by Number 41, Filed October 12, 2023, Proposed by #13758, Effective 9/28/2023, Expires 9/28/2033 (see Revision Note #4 at chapter heading for Env-Wq 1500).