Wastewater and stormwater discharge from landfills
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Wastewater and Stormwater Discharge from Landfills. Rick Pinneo Illinois EPA. Regulations: Wastewater. 40 CFR Parts 136 & 445 – Effluent Limitations Guidelines, Pretreatment Standards, and New Source Performance Standards for the Landfills Point Source Category State Regulations.

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Regulations: Wastewater

  • 40 CFR Parts 136 & 445 – Effluent Limitations Guidelines, Pretreatment Standards, and New Source Performance Standards for the Landfills Point Source Category

  • State Regulations


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Regulations Contd.

  • 40 CFR Part 122.26

  • State Regulations


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Applicability: 40 CFR 445.1

  • Does not apply to wastewater discharges from land application or land treatment units, surface impoundments, underground injection wells, waste piles, salt dome formations, salt bed formations, underground mines or caves.


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Contd.:

  • Does not apply to wastewater generated off-site of a landfill facility, including wastewater generated off-site from washing vehicles or from waste transfer stations.

  • Does not apply to discharges of contaminated ground water or wastewater from recovery pumping wells.


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Contd.:

  • Does not apply to discharges of landfill wastewater from landfills operated in conjunction with other industrial or commercial operations when the landfill only receives waste generated by the industrial or commercial operation.


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Contd.:

  • Does not apply to landfills operated in conjunction with Centralized Waste Treatment (CWT) facilities subject to 40 CFR Part 437 provided the CWT facility commingles the landfill wastewater with other non-landfill wastewater for discharge.


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Contd.:

  • Does not apply to landfills operated in conjunction with the industrial or commercial operations when the landfill receives wastes from public service activities so long as the company owning the landfill does not receive a fee or other remuneration for the disposal service.


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General Definitions40 CFR 445.2

  • Contaminated stormwater means stormwater which comes in direct contact with landfill wastes, the waste handling and treatment areas or landfill wastewater.

  • Facility means all contiguous property owned, operated, leased or under the control of the same person or entity.


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Contd.:

  • Landfill wastewater means all wastewater associated with, or produced by, landfilling activities except for sanitary wastewater, non-contaminated stormwater, contaminated ground water and wastewater from recovery pumping wells.


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Contd.:

  • Non-contaminated stormwater means stormwater which does not come in direct contact with landfill wastes, the waste handling and treatment areas or landfill waste water. Non-contaminated stormwater includes stormwater which flows off the cap, cover, intermediate cover, daily cover and/or final cover of the landfill.


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Regulated Wastewaters

Leachate

Gas Collection Condensate

Drained Free Liquids

Laboratory Derived Wastewater

Contaminated Stormwater

Transportation and Equipment Wash Water


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Discharge Limitations

  • Subpart A – RCRA Subtitle C Hazardous Waste Landfill (40 CFR 445.11)

  • Subpart B – RCRA Subtitle D Non-Hazardous Waste Landfill (40 CFR 445.21)



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Non-Contaminated Storm Water

  • 40 CFR 122.26(b)(14)(V)

  • 40 CFR 258.26 Run-on/Run-off Control Systems


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Stormwater permits required under 40 CFR 122.26(b)(14)(V) specify Best Management Practices (BMP) to be implemented. BMPs include but are not limited to the following:

  • Soil Erosion and Sediment Control

    - Soil Stabilization

    - Run-off Control

    - Sediment Control

    - Miscellaneous Controls


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Contd.: specify Best Management Practices (BMP) to be implemented. BMPs include but are not limited to the following:

  • Stormwater Management

    - Drainage Control

    - Detention


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Contd.: specify Best Management Practices (BMP) to be implemented. BMPs include but are not limited to the following:

  • Special Area Protection

    -Stream banks and shorelines

    - Wetlands and Waterbodies

    - Trees & Native Vegetation

    - Steep Slopes

    - Karst Areas


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Run-on/Run-off Control Systems (40 CFR 258.26) specify Best Management Practices (BMP) to be implemented. BMPs include but are not limited to the following:

  • Run-on control system to prevent flow onto the active portion of the landfill during the peak discharge from a 25-year storm.

  • Run-off control system from the active portion of the landfill to collect and control at least the water volume resulting from a 24- hour, 25-year storm.


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