Pennsylvania Code › Title 25 - ENVIRONMENTAL PROTECTION › Part I - Department of Environmental Protection › Subpart D - Environmental Health and Safety › Article IX - Residual Waste Management › Chapter 288 - RESIDUAL WASTE LANDFILLS › Subchapter E - ADDITIONAL REQUIREMENTS FOR CLASS II RESIDUAL WASTE LANDFILLS › ADDITIONAL OPERATING REQUIREMENTS-GENERAL › Section 288.523 - Minimum requirements for acceptable waste

Current through Register Vol. 54, No. 28, July 13, 2024
(a) A person or municipality may not dispose
						  of residual waste at a Class II residual waste landfill unless the waste meets
						  the following criteria:
(1) The residual
						  waste may not be of a type from which the maximum concentration obtained for a
						  contaminant, based on a chemical analysis of its leachate submitted under
						  §
														287.132 (relating to chemical
						  analysis of waste), and approved by the Department, exceeds 50 times the waste
						  classification standard for that contaminant. If analytical quantitation limits
						  prevent determination of the acceptability of a residual waste under this
						  paragraph, the Department may consider the total analysis of the waste as well
						  as the physical and chemical characteristics of the contaminant in making a
						  determination of acceptability of the waste at the facility.
(2) Notwithstanding the limitation in
						  paragraph (1), the Department may authorize the disposal of residual waste at a
						  monofill if the waste is of a type from which the maximum concentration
						  obtained for a contaminant, based on a chemical analysis of its leachate
						  submitted under § 287.132, exceeds 50 times the SMCL for that contaminant,
						  if the SMCL is the waste classification standard for the contaminant. The
						  Department may authorize the disposal of the waste only upon a demonstration
						  that disposal of the waste at the facility will not cause groundwater
						  degradation that exceeds the SMCL for a contaminant at a monitoring point or
						  groundwater degradation that exceeds background levels at the property boundary
						  for the contaminant.
(3) Even if a
						  waste meets the requirements of this section, and the Department has previously
						  authorized the disposal of the waste at the facility, the Department may
						  require that the waste be disposed at a Class I landfill if one of the
						  following applies:
(i) Monitoring data
						  indicate that the waste or contaminants of the waste are migrating from the
						  landfill.
(ii) The approved
						  chemical and leaching analysis no longer accurately predicts the leachability
						  of the waste.
(4) The
						  Department may authorize a facility which disposes of a waste in accordance
						  with a permit under this article to continue to dispose of the waste at the
						  facility although a waste classification standard for a contaminant has been
						  changed so that the waste would no longer meet the criteria for disposal of the
						  waste at the facility under paragraph (1), if the operator of the facility
						  demonstrates to the Department's satisfaction that disposal of the waste will
						  not cause groundwater degradation that exceeds the waste classification
						  standard for a contaminant at a monitoring point or groundwater degradation
						  that exceeds background levels at the property boundary for a
						  contaminant.
(5) If more than one
						  type of waste or waste contaminants are identified in the chemical and leaching
						  analysis, the waste shall be disposed at the most protective type of facility
						  required for the waste types and waste contaminants identified in the
						  analysis.
(6) Neither residual
						  waste nor leachate from the waste will adversely affect the ability of the
						  liner system to prevent groundwater degradation.
(7) Leachate generated from the residual
						  waste will be treated by the facility's leachate treatment system under
						  applicable laws in a manner that will protect public health, safety and the
						  environment.
(8) The residual waste
						  will not react, combine or otherwise interact with other waste that is or will
						  be disposed at the facility that will adversely affect the ability of the liner
						  system to prevent groundwater degradation.
(9) Except to the extent that leachate
						  recirculation is allowed in the permit, residual waste may not be bulk or
						  uncontainerized liquid waste. Containers holding free liquids may not be
						  accepted unless the container is less than 1 gallon in size, except as
						  otherwise provided in the permit.
(10) The residual waste shall have a pH
						  between 5.0 and 12.5 unless otherwise specified by the Department in the
						  permit. The pH may be adjusted to meet this requirement.
(11) The residual waste may not be allowed to
						  react, combine or otherwise interact with other waste or materials to endanger
						  public health, safety and welfare or the environment by generating extreme heat
						  or pressure, fire or explosion, or toxic mists, fumes, dusts or vapors. The
						  potential for the interaction shall be determined using the procedure in the
						  EPA's "
A Method for Determining the Compatibility of Hazardous
						  Wastes
" (EPA-600/2-80-076) or another equivalent method approved by
						  the Department in the permit.
(12)
						  The physical characteristics of the waste will not cause or contribute to
						  structural instability or other operating problems at the site.