Section Env-Wq 1010.13 - Ledge Tanks(a) Subject to (b), below, a ledge tank shall be used only on a ledge lot as defined in Env-Wq 1002.(b) A ledge tank may be used on a lot that is not a ledge lot if:(1) The location for the septic tank shown on the approved plan turns out to not be suitable, for example due to the presence of boulders;(2) There is no other suitable location for the septic tank; and(3) An amended plan is available at the final inspection in accordance with Env-Wq 1004.08.(c) To ensure adequate settling of solids when a ledge tank is used, total septic tank volume shall be twice the septic tank capacity specified in Env-Wq 1010.01 or Env-Wq 1010.02, as applicable. Such additional capacity may be achieved using 2 or more ledge tanks in series.N.H. Admin. Code § Env-Wq 1010.13
(See Revision Note at chapter heading for Env-Wq 1000) #9086, eff 2-9-08; ss by #9904-A, eff 4-16-11
Amended by Volume XXXVI Number 41, Filed October 13, 2016, Proposed by #11184, Effective 10/1/2016, Expires 10/1/2026.