40 CFR Part 133 — Secondary Treatment Regulation

Electronic Code of Federal Regulations. (2026). 40 CFR Part 133 — Secondary Treatment Regulation.

Type

Legislation

Intellectual base

Primary research

Year

2026

Link

https://www.ecfr.gov/current/title-40/chapter-I/subchapter-D/part-133

Cited by

1 citation across 1 artifact.

Domain-specific

• Secondary Treatment
  • In United States regulation, the federal secondary-treatment floor for publicly owned treatment works is expressed through biochemical oxygen demand, total suspended solids, percent removal, and pH rather than through a mandated flowsheet.

Verification

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