Publicly Owned Treatment Works

eCFR Subpart VVV [ecfr.gov]

This subpart applies to:

Publicly owned treatment works which meet all follwing conditions:

1. Publicly owned treatment works (POTW) which includes an affected source.
2. The affected source is located at a POTW which is a Major Source of HAPs* or is located at any industrial POTW;
3. The POTW is required to develop and implement a pretreatment program (defined in 40 CFR 403.8), or the POTW would meet the general criteria for development and implementation of a pretreamtent program.

OR

Must demonstrate that all units up to the secondary influent pumping station or the secondary treatment units do not emit a fraction exceeding 0.014.

Definition of "Affected Source":

• The group of all equipment that comprise the POTW treatment plant.

Definition of "Industrial POTW" / "Group 1 POTW":

• A POTW that accepts a waste stream regulated by an industrial NESHAP and provides treatment and controls as an agent for the industrial discharger.
• The industrial discharger complies with its NESHAP by using the treatment and controls located at the POTW. For example, an industry discharges its benzene-containing waste stream to the POTW for treatment to comply with 40 CFR part 61, Subpart FF—National Emission Standard for Benzene Waste Operations.
• This definition does not include POTW treating waste streams not specifically regulated under another NESHAP.
• With the October 2017 Final Rule, the EPA renamed an ‘‘industrial POTW treatment plant’’ as a ‘‘Group 1’’ POTW treatment plant and a ‘‘non-industrial POTW treatment plant’’ as a ‘‘Group 2’’ POTW treatment plant.

Definition of "POTW" / "Group 2 POTW":

• Any publicly owned treatment works which is owned by a State, municipality, or intermunicipal or interstate agency and therefore eligible to receive grant assistance under the Subchapter II of the Clean Water Act.
• Any federally owned treatment works as that term is described in section 3023 of the Solid Waste Disposal Act.
• This definition includes any intercepting sewers, outfall sewers, sewage collection systems, pumping, power, and other equipment. The wastewater treated by these facilities is generated by industrial, commercial, and domestic sources.
• With the October 2017 Final Rule, the EPA renamed an ‘‘industrial POTW treatment plant’’ as a ‘‘Group 1’’ POTW treatment plant and a ‘‘non-industrial POTW treatment plant’’ as a ‘‘Group 2’’ POTW treatment plant.

*Major Sources of HAPs emit or have the potential to emit:

• ≥ 10 tons/year of any single HAP; or
• ≥ 25 tons/year of total HAPs.
• Area Sources emit less than Major Sources

No

eCFR Subpart VVV [ecfr.gov]