Ohio Administrative Code › Title 3745 - Ohio Environmental Protection Agency › Chapter 3745-76 - Municipal Solid Waste Landfill Emissions › Section 3745-76-14 - Specifications for active collection systems

Current through all regulations passed and filed through July 1, 2024
(A) Each owner or operator seeking to comply
			 with paragraph (B)(2)(a) of rule
			 3745-76-07
			 of the Administrative Code shall site active collection wells, horizontal
			 collectors, surface collectors, or other extraction devices at a sufficient
			 density throughout all gas producing areas using the following procedures
			 unless alternative procedures have been approved by the director as provided in
			 paragraph (B)(2)(a)(iii) of rule
			 3745-76-07
			 of the Administrative Code and paragraph (B)(2)(a)(iv)) of rule
			 3745-76-07
			 of the Administrative Code:
(1) The
			 collection devices within the interior and along the perimeter areas shall be
			 certified to achieve comprehensive control of surface gas emissions by a
			 professional engineer. The following issues shall be addressed in the design:
			 depths of refuse, refuse gas generation rates and flow characteristics, cover
			 properties, gas system expandibility, leachate and condensate management,
			 accessibility, compatibility with filling operations, integration with closure
			 end use, air intrusion control, corrosion resistance, fill settlement,
			 resistance to the refuse decomposition heat, and maintenance of the integrity
			 of the final cover around each well.
(2) The sufficient density of gas collection
			 devices determined in paragraph (A)(1) of this rule shall address landfill gas
			 migration issues and augmentation of the collection system through the use of
			 active or passive systems at the landfill perimeter or exterior.
(3) The placement of gas collection devices
			 determined in paragraph (A)(1) of this rule shall control all gas producing
			 areas, except as provided by paragraphs (A)(3)(a) and (A)(3)(b) of this rule.
(a) Any segregated area of asbestos or
			 nondegradable material may be excluded from collection if documented as
			 provided under paragraph (D) of rule
			 3745-76-13
			 of the Administrative Code. The documentation shall provide the nature, date of
			 deposition, location and amount of asbestos or nondegradable material deposited
			 in the area, and shall be provided to the director upon request.
(b) Any nonproductive area of the landfill
			 may be excluded from control, provided that the total of all excluded areas can
			 be shown to contribute less than one percent of the total amount of NMOC
			 emissions from the landfill. The amount, location, and age of the material
			 shall be documented and provided to the director upon request. A separate NMOC
			 emissions estimate shall be made for each section proposed for exclusion, and
			 the sum of all such sections shall be compared to the NMOC emissions estimate
			 for the entire landfill. Emissions from each section shall be computed using
			 the following equation:
For Formula - To obtain the appendix, table, image, etc. please
				call LSC's ERF Helpdesk at 614-387-2078 or send an email to
				erfhelpdesk@lsc.state.oh.us.
Where,
Qi = NMOC emission rate from the ith section, megagrams per
				year
k = methane generation rate constant, year-1
Lo = methane generation potential, cubic meters per megagram
				solid waste
Mi = mass of the degradable solid waste in the ith section,
				megagram
ti = age of the solid waste in the ith section, years
CNMOC = concentration of nonmethane organic compounds, parts
				per million by volume
3.6 x 10-9 = conversion factor
(c) The values for k, and CNMOC determined in
			 field testing shall be used, if field testing has been performed in determining
			 the NMOC emission rate or the radii of influence (the distance from the well
			 center to a point in the landfill where the pressure gradient applied by the
			 blower or compressor approaches zero). If field testing has not been performed,
			 the default values for k, Lo, and CNMOC provided in paragraph (A)(1) of rule
			 3745-76-09
			 of the Administrative Code or the alternative values from paragraph (A)(5) of
			 rule
			 3745-76-09
			 of the Administrative Code shall be used. The mass of nondegradable solid waste
			 contained within the given section may be subtracted from the total mass of the
			 section when estimating emissions provided the nature, location, age, and
			 amount of the nondegradable material is documented as provided in paragraph
			 (A)(3)(a) of this rule.