Cincinnati customers must report main breaks, hydrant leaks, and visible underground leaks promptly to Greater Cincinnati Water Works dispatch, with a dedicated 24-hour line and online forms for non-emergency reports.
GCWW maintains roughly 3,000 miles of mains across Hamilton, Butler, Warren, and Clermont counties. Customers and bystanders should report main breaks, gushing hydrants, sinkholes, or persistent surface water by calling the GCWW emergency line, available 24 hours daily. Non-urgent meter or service-line leaks can be reported through the customer portal. Property owners are responsible for leaks on the customer side of the meter; GCWW handles the main-side. Bills affected by undetected leaks can sometimes qualify for a one-time leak adjustment if repairs are documented within 60 days. Ohio EPA rules under ORC Title 6111 reinforce reporting expectations for contamination concerns.
Failure to repair documented private-side leaks after written notice can result in service shutoff. Knowing concealment of contamination risk may trigger Ohio EPA enforcement under ORC Title 6111.
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