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Special Waste Landfill Chapter 11. Kentucky Department of Environmental Protection Division of Compliance Assistance 300 Fair Oaks Lane • Frankfort, KY 40601 Phone: 502.564.0323 • 800.926.8111 • Fax: 502.564.9720 Email: [email protected] • Website: dca.ky.gov.

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special waste landfill chapter 11

Special Waste LandfillChapter 11

Kentucky Department of Environmental Protection

Division of Compliance Assistance

300 Fair Oaks Lane • Frankfort, KY 40601

Phone: 502.564.0323 • 800.926.8111 • Fax: 502.564.9720

Email: [email protected] • Website: dca.ky.gov

What are the types of acceptable waste, design requirements, leachate regulations, and operational requirements for Special Waste Landfills?
chapter 11 general objective
Chapter 11 General Objective

Describes the typesof acceptable waste, siting requirement, design requirements, leachate regulations, and operational requirements for Special Waste Landfills.

chapter 11 specific objectives
Chapter 11 Specific Objectives
  • List the types of waste that can be accepted at a Special Waste Landfill.
  • Explain the sitingrequirements for a Special Waste Landfill.
  • Identify the regulationsand requirementsfor the designof a Special Waste Landfills.
chapter 11 specific objectives1
Chapter 11 Specific Objectives
  • Describe the closure and closure care requirementsfor Special Waste Landfills.
  • Understand the operational requirements for Special Waste Landfills.
special waste landfills
Special Waste Landfills
  • An owner or operator may dispose only special waste in a special waste landfill.
  • These wastes include:
    • utility coal combustion ash,
    • industrial wastewater and
    • drinking water treatment sludges,
    • residues from air pollution control equipment
    • certain oil field wastes
  • Acceptable waste streams for special waste landfills are found Kentucky law: KRS 224.50-760. They are defined as coal combustion residuals, sludge and cement kiln dust, gas and oil drilling muds and oil production brines.
unacceptable types of waste
Unacceptable Types of Waste
  • In general, the following waste streams are NOT ACCEPTABLE at special waste landfills:
    • Hazardous Waste
    • Municipal Solid Waste
    • Small quantity or limited quantity hazardous waste
    • Industrial Solid Wastes
siting requirements
Siting Requirements
  • 401 KAR 45:130
  • Flood Plains – sites cannot
    • Restrict the flow of the 100-year flood
    • Reduce the temporary water storage capacity of the flood plain.
  • Operational methods at the site must prevent waste washout
buffer zone requirements
Buffer Zone Requirements

The distance between the fill area and the following must be:

  • Property line (100 feet)
  • Intermittent or perennial stream (Unless a water quality certification is issued) (250 feet)
  • Sinkhole or other similar feature of karst terrain (250 feet)
  • Wastes cannot be placed in the zone of collapse of deep mine workings or within the critical angle of draw of such workings.

NO Facility shall be permitted unless:

  • The uppermost aquifer can be monitored to detect the constituents identified in 401 KAR 45:160, and
  • Corrective action can be performed on the aquifer as specified in 401 KAR 45:160
design requirements
Design Requirements
  • Special waste landfills are designed and operated for the disposal of a specific type of waste; thus, each design will vary. The regulations specifythat the engineering design must be capable of meeting the Environmental Performance Standards, siting standards and consider several factors.
design considerations
Design Considerations
  • Volume
  • Climate of Area
  • Permeability of the Liner Material
  • Type of soil(s) underneath the facility
  • Hydrogeologic characteristics of the facility; including quality, quantity, current use and direction of groundwater flow,
  • Proximity of the site to surface water and groundwater
  • Potential for gas emissions and odors,
  • Design of the leachate, runoff and gasmigration control systems relative to the specific waste to be disposed, climate and volume of leachate to be collected
  • Characteristics of the Wasteincluding how the linerand cover material will prevent hazardous chemicals from contaminating groundwater and surface water
preventing contamination
Preventing Contamination

Otherwise, the engineer should model the effects of any hazardous substance migration through the liner and into the groundwater.

Use the EPA help, ODAST, MODFLOW, IWEM or similar model to predict groundwater impacts of the proposed design.

closure and closure care requirements
Closure and Closure Care Requirements
  • Closure and closure care plan requiredfor the site to ensure compliance with the EPS.
  • The closure plan plus any other corrective work specified by the Division must be implemented.
  • The deed for the property must be altered to notify future purchasers of the same factors that are listed on deeds for closed residual landfills.
  • Once this work has been accomplished, the Division may accept the closure care certification prepared by the owner or his representative.
closure and closure care requirements1
Closure and Closure Care Requirements
  • After the Division accepts the owner’s closure certification, the facility must be maintained and monitored for a minimum of 5 years. This period is referred to as the post closure period (401 KAR 45:110, Section 5(6)).
  • Once the 5-year closure care period expires, the site must be inspected and records reviewed to determine the site’s compliance with all regulatory requirements and that 90% permanent vegetation cover exists. If the site is in compliance, the Division will release the closure bond.
leachate regulations
Leachate Regulations
  • The design of the facility leachate control system, runoff control system and gas migration control, if required, as it related to the physical and chemical characteristics of the waste, the climatic conditions of the specific location, the volume of leachate and contaminated runoff collected at the facility (401 KAR 45:110 section 1(7)).
leachate regulations1
Leachate Regulations

Note: This is a best professional judgment call by the design team.

Some special waste landfills do have leachate collection, since it sets up and sheds water. Sites with leachate collection discharge to their ash pond.

special landfill operational requirements
Special Landfill Operational Requirements
  • 401 KAR 45:110, Section 3
  • Special Waste Landfills must comply with the Environmental Performance Standards in 401 KAR 30:031
  • Cover requirements for each landfill are listed in their approved landfill applications or on their permit as permit conditions. In order to be in compliance, approved plans must be followed.
proposed federal rule
Proposed Federal Rule
  • Currently no federal regulation on coal combustion residuals (CCR),
  • EPA proposed a CCR rule in June, 2010 that had two options:
    • Manage CCR as hazardous waste
    • Manage CCR as a solid waste with specific requirements
  • Significance