Walla Walla Water Watcher - 5/2/14


Facts and tips on water usage and conservation, presented by the City of Walla Walla, in partnership with Walla Walla Community College.

Precipitation and moisture

Last April: 1.78 inches

This April so far: 1.87 inchesSoil moisture content: Normal

Water usage

This week’s average water use by all city customers: 9.30 million gallons per day.

Water use guidelines

From April 24-30, precipitation was 0.63 inches and area turf grass used 0.89 inches of moisture, according to WSU AgWeathernet data. Home irrigators should have run spray-type sprinklers one time for 11 minutes and rotor-type sprinklers one time for 39 minutes. Calculations are based on average precipitation rates, adjust for local conditions.

Yard care and water savings tips

The average single-family home uses at least 30 percent of its water for outdoor purposes such as irrigation and as much as 70 percent in dry climates. Some experts estimate that up to 50 percent of landscape water is wasted to evaporation, wind or overwatering.

To reduce water lost to evaporation, water your lawn or garden during the cool morning hours, as opposed to midday.

Don’t over-fertilize. You will increase the lawn’s need for water.

Raise your lawn mower blade to at least 3 inches. Taller grass promotes deeper roots, shades the root system, and holds soil moisture better.


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