Current through Register Vol. 43, No. 52, December 26, 2024
The owner or operator of each C&D landfill shall comply
with the following:
(a) Identification
of potential problem. If the owner or operator observes or is informed of any
indication of a release of landfill gas, the owner or operator shall perform
the following:
(1) Immediately assess the
potential danger posed to human health and safety;
(2) immediately take all the steps necessary
to ensure protection of human health and safety;
(3) notify the department of the observation
or information within two business days; and
(4) in consultation with the department,
implement appropriate action to assess the concentrations of gas at the
landfill.
(b) Action
levels. The owner or operator shall comply with the requirements of subsection
(c) if gas concentrations exceed any of the following levels:
(1) For methane, either of the following:
(A) 25% of the LEL (1.25% by volume) in any
building on the facility property; or
(B) 100% of the LEL (5% by volume) at the
facility property boundary;
(2) for hydrogen sulfide, either of the
following:
(A) 1 ppm for on-site personnel;
or
(B) 0.1 ppm in the ambient air
at the facility boundary, based on a 15-minute time-weighted average measured
when the wind speed is less than 15 mph; or
(3) for any gas other than methane or
hydrogen sulfide, a level that presents a risk to human health or safety
equivalent to the levels listed in paragraphs (1) and (2) of this
subsection.
(c) Response
and assessment monitoring. If the concentration of any gas exceeds the levels
specified in subsection (b), the owner or operator shall perform the following
actions:
(1) If an exceedance is found at the
facility boundary, immediately notify the local government's public health,
environment, and emergency management offices;
(2) notify the department within one business
day;
(3) within one week and in
consultation with the department, develop a gas monitoring plan;
(4) upon approval of the secretary, implement
the gas monitoring plan; and
(5) if
gas monitoring has continued for one month and the frequency of the exceedances
is not decreasing, take long-term corrective action according to the
requirements of subsection (d).
(d) Corrective action. If long-term
corrective action is required, the owner or operator shall perform the
following actions:
(1) Develop and submit to
the department a corrective action plan, including provisions for the
installation of an active or passive gas management system. The owner or
operator shall submit the plan within 60 calendar days of the date the
conditions requiring corrective action were met; and
(2) upon approval of the secretary, implement
the corrective action plan.
