N.H. Code Admin. R. Env-Wq 1506.01

Current through Register No. 25, June 20, 2024

Section Env-Wq 1506.01 - Erosion Control Methods: Temporary and Permanent Mulching

Mulching shall comply with the following:

(a) Hay and straw mulches shall be anchored with mulch netting or tackifier so that they are not blown away by wind or washed away by flowing water;

(b) Mulch materials shall be selected based upon soils, slope, flow conditions, and time of year;

(c) Hay or straw mulch shall be applied at a rate of 1.5 to 2 tons per acre, equivalent to 70 to 90 pounds per 1,000 square feet;

(d) Wood chips or ground bark shall be applied at 2 to 6 inches deep at a rate of 10 to 20 tons per acre, equivalent to 460 to 920 pounds per 1,000 square feet;

(e) Jute and fibrous mats and wood excelsior shall be installed according to the applicable manufacturer's instructions; and

(f) Erosion control mix shall:

(1) Meet the criteria of Env-Wq 1506.05(b); and

(2) Be placed at a thickness of 2 inches or more.

N.H. Code Admin. R. Env-Wq 1506.01

(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.