News & Announcements

Get the latest on SVID’s Priming Schedule, Canal/Lateral down info, breaks, proration/rationing info, and more.

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2025 Canal Priming Schedule begins on March 17, 2025

Sunnyside Valley Irrigation District will open the head gate on the Sunnyside Division Dam on Monday March 17, 2025, to begin canal priming. Due to the time, it takes for the water delivery system to fill, many water users closer to the main canals may have access earlier depending upon their location along the canal system. Priming the entire system will take priority over water deliveries. This means the water surface elevation in the Sunnyside Canal may not be high enough to make deliveries until the system is primed. The canal priming will continue throughout the next two weeks. SVID anticipates that irrigation water will be available to all water users by request by April 1, 2025. Tentative Priming Schedule: Head Gate Monday March 17, 2025 Lower Division Wednesday March 19, 2025 Snipes Lateral, Mabton Monday March 24, 2025 30.20, 23.10, 39.79 and 48.04 Tuesday March 25, 2025 Prosser, 49.71 and others as needed Wednesday March 26, 2025 All dates are subject to change due to weather and unanticipated circumstances.

Proration and Rationing Info

There are currently no Proration/Rationing Announcements.

Lateral Status

BeatLateral #Comments

Aquatic Treatments

Sunnyside Valley Irrigation District will be continuing our aquatic weed treatment program.     

Treatments made with Acrolein (Magnicide H), are labeled as being toxic to fish.  If you use your irrigation water for fish rearing, you are advised to discontinue using the irrigation water, beginning on the day of treatment and for at least two days thereafter.    

We will also be treating with Cascade and/or Teton (Endothall). If you do not wish to use treated water for any reason, you are advised to discontinue using the irrigation water, beginning on the day of treatment and for at least two days thereafter.   

Treatments made with copper are labeled as being toxic to fish.  If you use your irrigation water for fish rearing, you are advised to discontinue using the irrigation water, beginning on the day of treatment and for at least two days thereafter.

Below is the list of scheduled treatments.

DateLocationAffected BeatsHerbicide/Chemical
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