AQUATIC TREATMENTS

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 current year treatments.

Current Year Treatments

DateLocationAffected BeatsHerbicide/Chemical

Prior Year Treatments

DateLocationAffected BeatsHerbicide/Chemical
May 3, 202330.20E05Acrolein Treatment
May 22, 2023SSC 48.278, 9, 10, 11, 12 & 13Cascade Treatment
June 7, 2023PRW #510Acrolein
June 8, 2023MB 4.5112Acrolein
June 13, 2023SN 9.06 #156Acrolein
June 13, 2023SN 7.843, 4, 5, 6Acrolein
June 13, 2023SN 1.413, 4, 5, 6Acrolein
June 14, 2023SSC 40.387, 8, 9, 10, 11, 12, 13Acrolein
June 21, 2023SSC 2.93ALLCascade
July 10, 2023SSC 52.6310, 11Acrolein
July 11, 2023SSC 45.7007, 08, 09, 10, 11, 12, 13Acrolein
July 12, 2023SSC 37.104, 7, 8, 9, 10,11, 12, 13Acrolein
July 13, 2023SSC 28.092, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13Arcolein
July 14, 2023SSC 17.70ALLAcrolein
July 17, 2023SN 9.06 - HW6Acrolein Treatment
July 18, 2023MB 4.51 12Teton Treatment
July 19, 2023PR W - 18A10Cascade/Teton
August 1, 2023SN 7.84 6Acrolein Treatment
August 15, 2023PR W #18 A10Teton Treatment
August 16, 202323.10 B - HW02Acrolein Treatment
August 17, 202330.20 E - 015Acrolein
August 29, 2023SSC 52.6310, 11Acrolein
August 30, 2023SSC 45.707 thru 13Acrolein
August 31, 2023SSC 37.104, 7, 8, 9, 10, 11, 12, 13Acrolein
September 6, 2023MB 4.5112Cascade
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