Spring Hydrant Flushing runs from Sunday, April 20, 2025, 10:00 PM - Wednesday, April 30, 2025, 6:00 AM. If you have any questions related to the program, please call 311 or (269) 337-8000. Follow the link to see the map for your area. https://www.kalamazoocity.org/Residents/Water-Sewer-Service/More-About-Kalamazoos-Utility-Systems/Hydrant-Flushing