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WEID has scheduled the following canal treatments:


COPPER SULFATE & ARGOS - July 10-11 (Wednesday and Thursday):  Copper Sulfate and Argos target algae.  Treatments will start at approximately 7:00 am each day.  ARGOS is a liquid chelated copper.    It is applied at the rate of 1 ppm for a 6-hour set and has no label restrictions; this compares to the Copper Sulfate Crystals, which are applied at a rate of 5-6 ppm and have a lengthy holding time. Waters are considered "treated" from 6 am Wednesday to 10 am on Friday. 


  • 7/10/24 - Upper Canal - Phase 1 inlet (East of Power Line Rd.) to Division - start time 6 am
  • 7/10/24 - Relocation Canal - start time 7 am


  • 7/10/24 - Middle Canal - Division to I-84 - start time 8 am
  • 7/11/24 - Boardman Canal - Siphon to end - start time 7 am


UPDATED:  ACROLEIN (MAGNACIDE H) - Due to the heat, the treatment has been split into 2 days:

  • July 17 (Wednesday): Upper and Middle Canal (Phase 1 Inlet to Siphon at I-84)
  • July 18 (Thursday):  Boardman Canal (Siphon to End Spill)

Magnacide H (active ingredient Acrolein) targets pond weed and algae.  Treatments will start at approximately 6 am each day.  


Please call the office if you have any questions.



As a general schedule, WEID treats the canal on a 3-week rotation on Wednesdays: 

  • Argos and/or Copper (Wednesdays and Thursdays)
  • Acrolein
  • No Treatment


If you have any questions, please call the office at 541-922-3814.