"Dry well" means an effluent disposal area constructed as a covered, underground pit with an open-jointed or perforated lining and surrounded with septic stone, into which effluent is discharged for final disposal into the surrounding soil. The term includes seepage pit and effluent disposal pit.
N.H. Admin. Code § Env-Wq 1002.21
(See Revision Note at chapter heading for Env-Wq 1000) #9086, eff 2-9-08