Engineering presents stormwater permit training, details MCMs and enforcement examples

Jan 22, 2026

Stormwater manager Rich Mayers briefed the committee on the municipal stormwater permit administered by Maine DEP under US EPA authority, explained the six minimum control measures (MCMs) including illicit-discharge detection and construction runoff controls, and showed recent examples and repair work.

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Rich Mayers delivered a detailed permit-training segment on municipal stormwater obligations, explaining that Maine DEP administers the permit under authority from the US EPA and that permit cycles typically run five years (the previous cycle lasted nine years due to administrative continuation). He walked the committee through the permit's six minimum control measures (MCMs): public education and outreach (MCM 1–2), illicit discharge detection and elimination (MCM 3), construction-site runoff control, post-construction stormwater management (MCM 5) and pollution prevention/good housekeeping for municipal operations (MCM 6).

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