A Class A operator doesn't just keep the plant in compliance day to day — you're expected to understand the full regulatory lifecycle your permit lives inside: how it gets renewed, what legal status your facility has if that renewal is delayed, and what actually happens — mechanically, legally — when a plant is found out of compliance. This guide covers the permit renewal cycle and the Clean Water Act's enforcement ladder, from a friendly phone call up through federal criminal prosecution.
The Permit Renewal Cycle
NPDES/CDPS permits are not indefinite. Under 40 CFR § 122.46(a), "NPDES permits shall be effective for a fixed term not to exceed 5 years." Every permitted facility, including your treatment plant, is on a recurring five-year (or shorter) renewal clock, and the permittee — not the state — bears the responsibility to initiate renewal in time. Under 40 CFR § 122.21, a pe