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 1009 - SEWER LINES
Section Env-Wq 1009.06 - Slope of Pipe
Universal Citation: NH Admin Rules Env-Wq 1009.06
Current through Register No. 13, March 27, 2025
(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.
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