Category Archives: Alerts & Announcements


The WEID will apply the aquatic herbicide Magnacide H© to its main canal on Wednesday, July 13, 2022.  The active ingredient is Acrolein.  Pond weed is the targeted weed in the canal.  The entire canal will be treated with this herbicide from the Phase 1 Inlet (east of Powerline Road) to the endspill in Boardman.  Waters are considered “treated” from 6 am Wednesday to 9 pm on Thursday.

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


The Chairperson has called a Special Meeting of the Board of Directors of West Extension Irrigation District to discuss the maintenance contract with Westland Irrigation District.

The meeting will be held on Monday, July 11, 2022 at 9:00 am at the District Office at 840 E. Highway 730, Irrigon.

Please call the office at (541) 922-3814 if you have any questions.


The Board of Directors of West Extension Irrigation District will hold its Monthly Business Meeting on Thursday, July 21, 2022 at 9a;00 am. An Executive Session may be called pursuant to ORS 192.660 to discuss legal issues.

The board meeting will be held at Columbia Improvement District, 501 E. Columbia Ave., Boardman, OR 97818.

Please call the office at (541) 922-3814 if you have any questions.


West Extension Irrigation District will be applying the aquatic herbicide “Argos” (liquid chelated copper) in its Main Canal over 2 days::

Wednesday, June 29, 2022 (2 treatments): Upper Canal (Phase 1 Inlet (East of Power Line Road) to Division) and Middle Canal (Division to I-84)

Thursday, June 30, 2022: Boardman Canal (siphon to end)

Treatments will start each day at approximately 6 am and last for 6 hours. 

Argos targets algae and is applied at the rate of 1 ppm for a 6 hour set.  This low rate of application means there are no holding restrictions on the water.  This compares to the Copper Sulfate Crystals which are applied at a 5-6 ppm rate and have lengthy holding time.

Please call the office with any questions at 541-922-3814.


West Extension Irrigation District is committed to water conservation within the District. To further that goal, the Board of Directors approved a rebate program for conservation upgrades to landowners on the Irrigon Pressurized System (IPS). WEID will reimburse 50% of costs for new sprinklers, controllers, valves, etc. up to $200 max for each landowner. Look for your informational postcard in the mail.

To learn more about it, download this information sheet:  Information

Download application now:  Application

For more information, call the office at 541-922-3814 and ask for Emma.