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Q784.

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For a facility with two landfills with separate gas collection systems and destruction devices, can I calculate a collection efficiency (CE) for each landfill gas collection and control system, or does the CE have to represent the entire facility?

A784. The definition of an MSW landfill in 40CFR98.6 states that a "Municipal solid waste landfill or MSW landfill means an entire disposal facility in a contiguous geographical space where household waste is placed in or on land. An MSW landfill may also receive other types of RCRA Subtitle D wastes (40 CFR 257.2) such as commercial solid waste, nonhazardous sludge, conditionally exempt small quantity generator waste, and industrial solid waste. Portions of an MSW landfill may be separated by access roads, public roadways, or other public right-of-ways. An MSW landfill may be publicly or privately owned."  Therefore, all areas in which MSW waste is disposed in a contiguous geographic space are considered to be one landfill for the purposes of this rule.

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Source: Rachel Schmeltz, 2/6/2014 (HH_RY2013_FAQs_v2_2-6-2014.docx)

Approval / Publishing History: Version 1

Expiration: none

Relevant Subparts:  Subpart HH
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