Current through Register No. 44, October 31, 2024
Section Env-Wq 1506.11 - Sediment Control Methods: Construction DewateringDewatering shall comply with the following:
(a) The discharge shall be stopped immediately if the receiving area shows any sign of instability or erosion;(b) All channels, swales, and ditches dug for discharging water from the excavated area shall be stable prior to directing discharge to them;(c) If a construction equipment bucket is used, it shall empty the material to a stable area;(d) No dewatering shall occur during periods of intense, heavy rain;(e) Flow to the sediment removal structure shall not exceed the structure's capacity to settle and filter flow or its volume capacity; and(f) Wherever possible, the discharge from the sediment removal structure shall drain to a well-vegetated buffer by sheet flow while maximizing the distance to the nearest water resource and minimizing the slope of the buffer area.N.H. Admin. Code § Env-Wq 1506.11
(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.