After this weekend, city officials warn that voluntary water rationing might be in Tulsa's future.
Tulsa water customers used 198.09 million gallons of water Sunday, the highest single-day use so far this summer.
If water use today exceeds 197 million gallons, the mayor will implement voluntary water use restrictions. That means that customers will be asked to limit outside watering to the hours between midnight and noon every other day, based on odd-even address numbers.
Keep watching Tulsa's Channel 8 for more information at 5, 6 and 10.