Section Env-Sw 805.07 - Leak Detection and Location System Design Standards(a) A leak detection and location system designed to detect and isolate the location of leaks through a liner shall be required beneath each liner installed at a lined landfill, unless the potential for leakage through the bottom most liner is reduced by one or both of the following design features: (1) Geonet is incorporated throughout the leachate collection and removal system for the bottom most liner, in order to rapidly convey leachate off the liner and thereby limit the potential for hydraulic head to develop on the liner; or(2) The bottom most liner is a composite liner which meets the requirements of Env-Sw 805.04(c).(b) Leak detection and location systems shall be designed to: (1) Convey liquids to an observation point for detection, based on a maximum time of concentration equal to 24-hours under saturated hydraulic conditions; and(2) Provide a means for isolating the potential location of a leak.N.H. Admin. Code § Env-Sw 805.07
#5172, eff 7-1-91; ss by #6535, INTERIM, eff 7-1-97, EXPIRES: 10-29-97; ss by #6619-B, eff 10-29-97; (See Revision Note at chapter heading for Env-Sw 800) ss by #8459, eff 10-28-05 (formerly Env-Wm 2505.07 )
Amended byVolume XXXIV Number 24, Filed June 12, 2014, Proposed by #10597, Effective 7/1/2014, Expires7/1/2024.