Section Env-Wq 711.05 - Secondary Settling Tanks: Design Criteria for Inlets and Outlets(a) Inlets shall be designed to minimize short-circuiting and to distribute flow across the entire settling tank.(b) Scum gathering in the inlet area shall be minimized.(c) V-notch weirs shall be provided for all outlets. Head over the base of the V-notch shall be less than the depth of the notch. Weirs shall be adjustable to correct for any differential settlement of the tanks.(d) Effluent launders shall be designed to convey the maximum instantaneous flow without surcharging.(e) Launder inverts shall be sloped a minimum of 0.5 percent.N.H. Code Admin. R. Env-Wq 711.05
Adopted byVolume XXXIV Number 46, Filed November 13, 2014, Proposed by #10693, Effective 10/15/2014, Expires10/15/2024.