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Municipal Solid Waste (MSW) Landfill MACT Summary


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5. When Must a MSW Landfill begin Complying with the Standards?

Landfill Gas Collection SystemIf a MSW landfill is a new affected source, the operator must comply with the final rule by January 16, 2003 or at the time you begin operating, whichever occurs last. The final rule requires the source to comply with the NSPS at that time. For the requirements in the final rule that are over and above the NSPS, the source must begin complying by the date a new major or area source landfill is required to install a collection and control system by the NSPS. If the operator owns or runs a bioreactor at a landfill that is a new affected source, then they are required to install the gas collection and control system in the bioreactor prior to initiating liquids addition, regardless of whether the landfill emissions rate equals or exceeds the estimated uncontrolled emissions rate of 50 Mg/yr specified in the EG/NSPS. Startup of the collection and control system is required within 180 days after initiating liquids addition or within 180 days after reaching 40 percent moisture content within the bioreactor, whichever is later.
             
If the MSW landfill is an existing affected source, then the operator must comply with the final rule by January 16, 2004. The final rule requires the source to comply with the NSPS or Federal, State, or Tribal plan that implements the EG, whichever applies to the landfill, at that time. The operator must begin complying with the additional requirements of the final rule (that are over and above the EG/NSPS) by January 16, 2004, or the date the landfill is required to install a collection and control system by the NSPS or Federal, State, or Tribal plan that implements the EG, whichever is later.

BioreactorIf the landfill has a bioreactor and the landfill is an existing affected source, then you must install and begin operating a collection and control system for the bioreactor within 3 years after publication of the final rule unless earlier control is already required by the EG/NSPS. The operator is required to conduct a performance test and report the results within 180 days after startup of the bioreactor collection and control system. If an existing source landfill installs and begins to operate a bioreactor at a date later than 3 years after the final rule is published, the operator must install a collection and control system for the bioreactor before the initiation of liquids addition. The control system is required to begin operation within 180 days after the first date of liquids addition or within 180 days after reaching 40 percent moisture content.


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