Peak Water Rates and Using Water Wisely

Summer Water Supply

While Seattle has plenty of water in the winter, our water system is limited by its ability to supply water during the summer when demand is at its highest and rainfall is at its lowest. During the summer months, we depend on storage in our mountain reservoirs to meet demand while leaving enough water in the rivers for fish.

Peak Water Rates 2020

Higher water rates encourage all of us to use water wisely during the summer months. Peak residential water rates use a three-tiered rate structure with progressively higher rates as water consumption increases. These rates are in effect from May 16 through September 15 each year.

Using Water Wisely

Here are a few of our favorite tips for using water wisely during the summer months:

Let Your Lawn go Dormant
Let the soil dry between waterings to prevent lawn disease and save water. Lawns only need about one inch of water a week in summer, including rain, to stay green.

Water early and late
Water your plants before 8 am or after 7 pm, when temperatures are low and less water is lost to evaporation.

Mulch to Hold Moisture
Add 2-3 inches of woodchip mulch to your plant beds. Mulch holds in moisture, reducing the need for watering and protects roots from overheating.

Sweep to Save Water
Use a broom – not a hose – to clean your sidewalks, driveways, and patios.

Get more tips for using water wisely in the summer and year-round at
www.savingwater.org.