Item 07 - Sewer System Management Plan 2025 Update

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o Does not reach surface water. o Enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system. Reporting Reporting for all Category 2 spills shall be made by the on -call duty employee, water maintenance supervisor, and or water maintenance crew leader and shall be handled as follows: 1. Call the Environmental Health Division of the Orange County Health Care Agency (OCHCA). During working hours, call OCHCA directly at (714) 433- 6419. After working hours and on the weekends, notify OCHCA by calling Orange County Control One (available 24 hours) at (714) 628-7008. 2. If the spill reached a City storm drain, contact the City's NPDES Manager (Craig Foster) at (714) 397-0759. The spill must be documented as part of NPDES Permit requirements. The NPDES Manager may also be able to assist with spill response and contractor cleanup. 3. Submit a draft report within 3 business days of becoming aware of the spill and certify within 15 calendar days of spill end date. Enter data into the CIWQS Online Spill Database (http://ciwqs.waterboards.ca.gov/). 4. Category 2 sewer spill certification will be performed by the City's Legally Responsible Officer (LRO). CATEGORY 3 SPILL REPORTING: Category 3 spills are: • Greater than 50 gallons and less than 1,000 gallons which: o Does not reach a surface water o Enters a drainage conveyance system but is fully recovered and returned to the sanitary sewer system . Reporting Reporting for all Category 3 spills shall be made by the on -call duty employee, water maintenance supervisor, and or water maintenance crew leader and shall be handled as follows: 1. Call the Environmental Health Division of the Orange County Health Care Agency (OCHCA). During working hours, call OCHCA directly at (714) 433- 6419. After working hours and on the weekends, notify OCHCA by calling Orange County Control One (available 24 hours) at (714) 628-7008. REVISION 2.0 (4/23) 13