509.837.5141 | P.O. Box 810, Sunnyside, WA 98944

Chemical Treatment Schedule

Upcoming Treatments


Notification of Aquatic Herbicide Treatments 7-1-2019
Treatment Date: July 1, 2019
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Past Treatments


Notification of Aquatic Herbicide Treatments 6-20-2019
Treatment Date: June 20, 2019
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Notification of Aquatic Herbicide Treatments 6-20-2019
Treatment Date: June 20, 2019
View Treatment Schedule and Details PDF
Notification of Aquatic Herbicide Treatments 6-20-2019
Treatment Date: June 20, 2019
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Notification of Aquatic Herbicide Treatments 6-19-2019
Treatment Date: June 19, 2019
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Notification of Aquatic Herbicide Treatments 6-18-2019
Treatment Date: June 18, 2019
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Notification of Aquatic Herbicide Treatments 6-18-2019
Treatment Date: June 18, 2019
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Notification of Aquatic Herbicide Treatments 6-13-2019
Treatment Date: June 13, 2019
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Notification of Aquatic Herbicide Treatments 6-7-2019
Treatment Date: June 7, 2019
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Notification of Aquatic Herbicide Treatments 6-6-2019
Treatment Date: June 6, 2019
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"Working together proactively to preserve, protect and enhance our water and land resources."