Practitioner-level US state guidance that directly complements the EPA framework. Specifies how to scope CSO facility plans, define monitoring plans (measurement points, minimum durations, sampling protocols), assess system condition and structure a CSO Master Plan. Useful reference for the operational detail behind Map runoff in your city and the rainfall-monitoring recommendations in Stage 1.
ME DEP (1994): Program Guidance on Combined Sewer Overflow (CSO) Facility Plans (DEPLW0846). Augusta, ME DEP: Maine Department of Environmental Protection. URL [Accessed: 22.04.2026] PDF