Walla Walla Water Watcher

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Water picture: The precipitation in the City for September 2008 was .38 inches and for September 2009 thus far, it is 0.00 inches.

Water usage: The water used by city customers during the week of Sept. 4-10 averaged 15.69 million gallons per day as compared to 17.16 million gallons per day average usage the preveious week. This includes all residential, commercial, and industrial use.

Water use guidelines: For the week of Sept. 4-10 precipitation was .00 inches and turf grass in the area used 1.23 inches of moisture, according to WSU AgWeathernet data. Home irrigators should have run spray-type systems four times last week for 12 minutes or rotor-type systems four times for 46 min. Using National Weather Service long range forecast, and WSU AgWeathernet historical data, the estimated ET for turf grass for the week of the Sept. 11-17 is 1.20 inches with no precipitation forecast for this week. Home irrigators are advised to run spray-type systems four times a week for 12 minutes or rotor-type systems four times a week for 46 minutes. Recommended run times are based on average irrigation precipitation rates of 1.5 inches an hour for sprays and .4 inches an hour for rotors. Adjust accordingly for your own application rates and natural precipitation.


Yard care and water savings tips


Fertilize only during the growing season. Allow a month between autumn application and the time of freeze, if possible, allowing new growth to harden off and become less vulnerable to frost.

Sophisticated soil moisture sensors will turn on your automatic irrigation system when water is needed. The more basic soil moisture sensors turn off your system when water is adequate. Reliable soil moisture sensor technology is currently available in irrigation supply stores.

Direct the spray in such a way that water lands on your lawn or garden, not on concrete, where it does no good.

Be aware of how much water you use. Awareness is the first step in conservation. Review your water bill. Divide your water usage by the number of days in the billing period and also by the number of residents in your household. If your water is measured in cubic feet, convert to gallons by multiplying by 7.48.

For current water conservation information, go to www.ci.walla-walla.wa.us.

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