Section Env-Wq 1009.02 - Crossing Water Lines(a) Subject to (b) and (c), below, where a water line must cross a sewer line, the sewer line shall be at least 18 inches below the water line.(b) The water line may be closer than 18 inches to the sewer line if the water line or sewer line is encased in concrete or pipe having an SDR of 26 for a distance of 10 feet on both sides of the line being crossed.(c) If placing the sewer line below the water line would require a sewage pump to be used, the sewer line may be placed above the water line provided one of the lines is sleeved as provided in (b), above.N.H. Admin. Code § Env-Wq 1009.02
(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.