New Hampshire Code of Administrative Rules
Env - Department of Environmental Services
Subtitle Env-Wq - Water Quality and Quantity Programs
Chapter Env-Wq 1000 - SUBDIVISIONS; INDIVIDUAL SEWAGE DISPOSAL SYSTEMS
Part Env-Wq 1017 - EFFLUENT CONDUITS
Section Env-Wq 1017.03 - Venting for Chamber Systems
Current through Register No. 13, March 27, 2025
(a) All chamber systems shall be vented as specified in this section.
(b) Chambers that are of solid-wall construction shall be vented using a pipe to the atmosphere.
(c) Chambers having louvered side-walls or other such openings that allow air from the surrounding soils to flow into the chamber shall not need additional venting unless more than 18 inches of backfill and loam will be placed on the chambers.
(d) If a vent pipe is used, the length of pipe between the bed and the stand-pipe shall be pitched such that effluent is not able to flow out of the bed.
(See Revision Note at chapter heading for Env-Wq 1000) #9086, eff 2-9-08; ss by #9904-A, eff 4-16-11
