Section Env-Wq 1009.06 - Slope of Pipe(a) The slope of the pipe from the building to the septic tank shall be not less than 2% and not more than 15%.(b) The pipe shall be below ground surface for not less than 5 feet leading to the septic tank inlet.(c) The slope of the pipe from the septic tank to the distribution box shall be not less than 1/8 inch per foot.N.H. Admin. Code § Env-Wq 1009.06
Adopted by Volume XXXVI Number 41, Filed October 13, 2016, Proposed by #11184, Effective 10/1/2016, Expires 10/1/2026.