Section Env-Wq 1017.02 - Concrete Chambers(a) Each bed that includes concrete chambers shall be constructed on a 6 inch level layer of: (1) Medium to coarse textured sand, with an effective size of 0.25 to 2.0 mm, no greater than 5% passing the number 200 sieve, and no particles larger than 3/4 inch; or(2) Materials meeting the ASTM C-33 specification.(b) Filter fabric or galvanized wire mesh shall be placed around the chambers prior to placing the septic stone.(c) The pipe conveying effluent from the septic tank to the bed shall empty into either a velocity reducing pit, a splash plate, or internal distribution system.N.H. Admin. Code § Env-Wq 1017.02
(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.