RCRAAIRNPDES CROSSCUTTING ISSUES

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RCRA/AIR/NPDES CROSS-CUTTING ISSUES

• David Duster
• Jake Medellin
• EPA Region 6

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RCRA/NPDES Interactions

• Sludges
• Wastewater Treatment Exemption
• Surface Impoundments
• Drum Storage
• Spills

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Resource Conservation Recovery Act

• Commonly known referred to as RCRA
• Nation's primary law governing the disposal of
  solid and hazardous waste.
• Congress passed RCRA on October 21, 1976

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Definition of Solid Waste

• Any discarded material that is abandoned,
  recycled, inherently waste-like or a military
  ammunition.

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Is Wastewater a Solid Waste?

• YES

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What is Hazardous Waste

• Displaying ignitable, corrosive, reactive or
  toxic characteristics.
• Listed based on source or commercial chemical
  product.

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Generation of Hazardous Waste at Wastewater
Treatment Plant

• Sludge resulting from wastewater treatment must
  be handled as a RCRA waste if hazardous.
• Sludges derived from treatment of listed waste
  are still classified as hazardous due to the
  listing.

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Wastewater Exemption

• WWT Unit Is Exempt From Part 270 Permit
  Requirements and Subpart J Tank Requirements
• Discharge Limits Based On NPDES or Pretreatment
  Limits

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Definition of Wastewater Treatment Unit

• Part of a Wastewater Treatment facility Subject
  to Regulation Under Sections 307 or 402 of the
  CWA
• Receive and Treat or Store Hazardous Influent
  Wastewater, or Generate and Accumulate a
  Hazardous Wastewater treatment Sludge
• AND!!! Meet the EPA Definition of a Tank

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Definition of a Tank

• Stationary Device
• Designed to Contain an Accumulation of Hazardous
  Waste
• Constructed of Non-Earthen Materials
• Provide Structural Support (Parking Lot Test)

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Surface Impoundments

• Topographical depression designed to hold liquid
  waste.
• Surface impoundments that receive hazardous waste
  must be RCRA permitted.
• Parking lot test.

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Drum Storage

• Hazardous Waste Stored in Containers Must Be
• Closed
• Labeled with the words Hazardous Waste
• Good Condition
• Not Leaking
• Inspected on a Weekly Basis

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Release of Hazardous Constituents

• RCRA 7003 Regulatory Authority To Address
  Potential Endangerments Caused By Spills or
  Releases From Wastewater Treatment Process.

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Air/NPDES Crosscutting Issues

• Joaquin (Jake) Medellin Jr.
• EPA Region 6
• Houston Office

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Air/NPDES Interactions

• Chemical Plants (Vinyl Chloride, Benzene,
  Synthetic Organic Chemicals Production)
• Wastewater Treatment
• Refineries
• Wastewater Treatment
• Drain Hubs, Oil/Water Separators, Dissolved Air
  Flotation (DAF) Devices, Storage Vessels/Transfer
  Operations

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Air Requirements For WW Treatment at Chemical
Plants and Refineries

• Vinyl Chloride (NESHAP Part 61 Subpart F).
• Control and Treat Process WW To Less than 10 ppm
  Vinyl Chloride Prior To Treatment at WW Plant.
• Refineries and Benzene (NESHAP Part 61, Subpart
  FF and NSPS Part 60 Subpart QQQ).
• Control and Treat Process WW To Less than 10 ppm
  Benzene Prior To Treatment at WW Plant.

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Air Requirements for Hazardous Organic NESHAPs
(HON)

• 40 CFR Part 63, Subpart G for Synthetic Organic
  Chemical Manufacturing Industry (SOCMI).
• Regulates Process Vent Streams, Storage Vessels,
  Transfer Operations and WASTEWATER.
• Control and Treat to 98 Reduction or 20 ppmv.

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Methods Of Control

• WW Conveyance, Storage, and Treatment Devices
  Closed to the Atmosphere.
• Carbon Canisters Connected to Process WW.
• Water Seal Control, P-traps.
• Closed Vent Systems, Vent Air Emission Control
  Device such as Flare, Thermal Oxidation Unit, or
  Carbon Absorption Unit.

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Methods of Treatment

• Air Stripping
• Steam Stripping
• Carbon Absorption
• Thin-Film Evaporation Unit
• Biological Treatment
• Waste Incineration

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API/CPI Separator

• Fixed Roof, No Gaps
• Roof Openings Must Be Gasketed and Closed
• If capacity is over 250 gpm, closed vent system
  and control device with greater 95 efficiency
• No Detectable Emissions

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Process Drain Requirements

• Drains must have water seal controls (P-traps)
• No Detectable Emissions
• Inspect Drain Levels and VOC emissions Monthly
• Inspect Plugs or caps over Drains.

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Dissolved Air Flotation Requirements

• Fixed Roof, No Gaps
• Roof Openings Must be Gasketed and Closed.
• If Capacity is Over 250 gpm, closed vent system
  and control device greater than 95 efficiency.
• No Detectable Emissions

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