Section Env-Wq 1016.05 - Backfill of Conventional Pipe-and-Stone Beds(a) Before backfilling the EDA, the stone shall be covered with a durable permeable layer that will allow ventilation, such as a 2 inch layer of hay or filter fabric. An impervious covering such as tar paper or plastic shall not be used, as this interferes with ventilation.(b) Backfill material shall be clean, permeable fill.(c) After backfilling, the top of the EDA shall be overfilled with 4 to 6 inches of loam suitable for seeding.(d) No more than 18 inches total of backfill and loam shall be used to cover the EDA unless the effluent conduits are vented.(e) Hydraulic backfilling or machine tamping of the backfill or loam, or both, shall be prohibited.N.H. Code Admin. R. Env-Wq 1016.05
(See Revision Note at chapter heading for Env-Wq 1000) #9086, eff 2-9-08; amd by #9904-A, eff 4-16-11
Amended by Volume XXXVI Number 41, Filed October 13, 2016, Proposed by #11184, Effective 10/1/2016, Expires 10/1/2026.