The watering rules incorporate best practices for efficient outdoor water use that will help keep your landscape healthy. It’s a simple way for you to help protect our water supply now and in the future.

• Water during cooler times of the day — lawn watering is NOT allowed between 10 a.m. and 6 p.m.
• Water two days per week, adding a third day only when needed. (Watering more than three days is not allowed.)
• Do not allow water to pool in gutters, streets and alleys.
• Do not waste water by letting it spray on concrete and asphalt.
• Repair leaking sprinkler systems within 10 days.
• Do not irrigate while it is raining or during high winds.
• Use a hose nozzle with a shut-off valve when washing your car.

TIP: Longer grass is more water efficient. Keep cool season grasses like Kentucky bluegrass between 2.5-3.5 inches and warm season grasses between 1-3 inches.

Lawn watering times 

These times are based on a sprinkler system running at an efficient level. Watering is not allowed between 10 a.m. and 6 p.m.

The chart below is a starting point for the number of minutes to water each sprinkler zone on the days you determine watering is needed. These times are averages. Adjust your watering minutes based on rainfall, type of grass or plants, sunny or shady locations and other characteristics.

Watering two days a week should be sufficient during most of the summer. If needed, water a third day only during extreme heat or dry periods. Water trees and shrubs as needed, but not between 10 a.m. and 6 p.m. Shrubs and perennials need half as much water as lawns.

There are no assigned watering days, but never water a zone more than three days per week.