Section Env-Sw 806.07 - Decomposition Gas Control Requirements(a) Decomposition gases shall be controlled to prevent hazards to health, safety or property.(b) Facility operations shall not cause the concentration of methane and other explosive gases to: (1) Exceed 25 percent of the lower explosive limit for gases in structures on or off-site, excluding leachate collection and gas control and recovery components; and(2) Exceed 50 percent of the lower explosive limit for the gases at and beyond the property boundary within the soil.(c) To assure that the requirements in (a) above are met, a monitoring program shall be implemented by the permittee in accordance with provisions in the facility's approved operating plan and closure plan.(d) The type and frequency of monitoring shall be based on the following factors: (2) The hydrogeological and hydraulic conditions surrounding the disposal area; and(3) The location of any man-made structures and property boundaries.(e) If methane or other explosive gases are detected above the limits specified in (b) above, the permittee shall notify the department immediately and implement contingency procedures to ensure the protection of public health and safety.(f) A decomposition gas program shall be implemented by the permittee under the provisions of the facility's approved operating plan and closure plan to assure that the facility complies with the federal clean air act and state air quality standards.(g) A written plan for confined space entry, based on the standards specified by Federal Occupational, Safety and Health Administration (OSHA) requirements in 29 CFR 1910.146, shall be prepared and implemented as part of facility operations.(h) For landfills with active gas extraction systems, the permittee shall maintain authority for complete operational control of any and all gas extraction wells and blower systems, together with at least one mechanism for destroying the gas.(i) The permittee may transmit landfill gas collected using an active gas extraction system to other locations for use as fuel, provided the permittee complies with all federal, state, and local requirements that apply to the method by which the gas is transmitted.N.H. Admin. Code § Env-Sw 806.07
#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 2506.07 )
Amended byVolume XXXIV Number 24, Filed June 12, 2014, Proposed by #10597, Effective 7/1/2014, Expires7/1/2024.