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 1020 - DRY WELLS
Section Env-Wq 1020.04 - Sizing of Effluent Disposal Area
Universal Citation: NH Admin Rules Env-Wq 1020.04
Current through Register No. 13, March 27, 2025
(a) For purposes of complying with Env-Wq 1016.01, the effective effluent disposal area for dry wells shall be the vertical wall area, based on the dug diameter, below the inlet, excluding the surface area of the bottom of the drywell.
(b) The total area provided shall be at least 50% of the area established in Env-Wq 1016.01.
(c) The area shall be calculated to the edge of stone using one of the following formulas:
(1) A = pdh, where d is the diameter of the
dry well and h is the height below inlet; or
(2) A = 2h(l+w)N, where h is the height of
the dry well, l is the length of the dry well, w is the width of the dry well,
and N is the total number of drywells.
(See Revision Note at chapter heading for Env-Wq 1000) #9086, eff 2-9-08
Disclaimer: These regulations may not be the most recent version. New Hampshire may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google
Privacy Policy and
Terms of Service apply.