West Extension Irrigation District uses the aquatic herbicides ACROLEIN (Magnacide-H), COPPER SULFATE CRYSTALS, and ARGOS (a liquid chelated copper) in its main canal to treat pond weed and algae.  The District has an NPDES permit from Oregon DEQ that allows it to apply the products.

Each product is applied two to five times during the season, starting in mid-May and continuing to mid-September.  A notice of treatment will be posted on the door of the District office and on this website prior to each treatment.

If you have dairy animals or are delivering to a public site (schools, parks, mobile home park), you are required to close your delivery point during the treatment times.  If you have livestock and are using irrigation water as stock water, you may want to close your delivery during treatment times.

If you would like further information on this notice or the aquatic herbicide products, please contact the Distric t office.

If you would like to be notified prior to any application, please contact the District in writing or by text, providing a telephone number that can receive texts or has an answering machine, or an email address.  We will contact your 24 hours prior to the canal aquatic herbicide application.