A single SSO is a maintenance event. A pattern of SSOs at the same manhole, or a utility that can't answer "why did this happen and what are we doing about it," is a regulatory and public-trust problem that escalates fast. At the Class 3 level, you move from responding to individual overflows toward owning the systems that prevent them — a documented response plan, an enforceable grease interceptor program, a structured FOG source control program, and a root-cause process that feeds directly into capital planning. This guide covers all four.
Full SSO Response Plan Components
A mature SSO response plan is a written document your utility maintains and trains staff on — not something improvised in the field. Its core components include:
- Notification chain with escalation. Who is called first, who they notify next, and at what point the state regulator (CDPHE) and, if needed, oth