Section Env-Wq 1021.04 - Fill Extension; Side Slopes(a) The finished grade over the bed shall: (1) Extend for a minimum of 3 feet horizontally beyond the bed before starting to slope; and(2) Be covered by 4 to 6 inches of loam suitable for seeding.(b) The sides of a raised EDA shall taper at a 3:1 slope, except that a slope of 2:1 may be used if necessary to maintain the side slopes on-lot or avoid an existing permanent structure.(c) Side slopes shall be stabilized by being covered with: (1) At least 3 inches of loam that is seeded immediately;(2) At least 3 inches of bark mulch; or(3) Other material that will prevent erosion and lead to long-term stability of the slopes without interfering with ventilation, such as an erosion control blanket.N.H. Admin. Code § Env-Wq 1021.04
(See Revision Note at chapter heading for Env-Wq 1000) #9086, eff 2-9-08
Amended by Volume XXXVI Number 41, Filed October 13, 2016, Proposed by #11184, Effective 10/1/2016, Expires 10/1/2026.