Item 07 - Sewer System Management Plan 2025 Update

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Any spill volume not recovered from a drainage conveyance system is considered a discharge to surface water, unless the drainage conveyance system discharges to a dedicated stormwater infiltration basin or facility (e.g., infiltration pit, percolation pond). A spill from an Enrollee -owned and/or operated lateral that discharges to a surface water. Category 2: A discharge of sewage: That is 1,000 gallons or greater. That does not discharge to a surface water. That enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system. Category 3: A discharge of sewage: That is greater than or equal to 50 gallons and less than 1,000 gallons. That does not discharge to a surface water. That enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system. Category 4: A discharge of sewage: • That is less than 50 gallons. • That does not discharge to a surface water. • That enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system. Private Lateral Spills: • Discharges of untreated or partially treated wastewater resulting from blockages or other problems within a privately owned sewer lateral connection to the enrollee's sanitary sewer system or from other private sewer assets. REVISION 2.0 (4/23)