The South Columbia Basin Irrigation
District is providing public
notice that it will be applying
aquatic herbicides to its irrigation
canals, drains, and wasteways in
accordance with
Washington Department of Ecology
Permit No. WAG991000.
The purpose of the herbicide
applications is to control aquatic
weeds within the irrigation
delivery and drainage systems.
Treatments will be to all irrigation
canals, drains, and wasteways
constructed by the United
States Bureau of Reclamation
within the boundaries of the
South Columbia Basin Irrigation
District located in Adams, Grant,
Franklin, and Walla Walla Counties.
The pesticides to be used for
aquatic weed control are: Magnacide-
H (acrolein), Phelps
Dodge Copper Sulfate (copper
sulfate), Aquatic Weed Killer
(xylene), Captain and Captain
XTR (chelated copper), Argos
8% (chelated copper), F-30
Algae Control (chelated Copper)
and Clearcast, Cascade, and
Teton (endothall).
Treatments will be daily on
various canals, drains, and
wasteway systems from April
2023 through March 2024. All
systems will be treated at varying
intervals, depending on label
recommendations, to maintain
the efficacy of the treatments
throughout the treated areas.
Treatment sites will be posted
in accordance with Permit
WAG991000 with the name and
telephone number of the South
Columbia Basin Irrigation District.
Waters within the
delivery system of the South
Columbia Basin Irrigation District
are intended for agriculture
purposes only and are not for
human consumption or primary
contact such as swimming or
for aquaculture. Canals are dangerous.
They have constructed
facilities and submerged
features that are harmful to
human life. All facilities are
constructed on easements of the
United States Bureau of Reclamation,
are not for public access,
and are intended for
authorized purposes only. District
facilities are posted and are
located on private property.
Chemicals will be applied under
the direction of Matt Morgan,
SCBID Aquatics Program
Manager, telephone (509) 547-
1735. The Washington Department
of Ecology contact is
Ms. Danielle Edelman, Southwest
Regional Office, telephone
(360) 407-7118, fax (360)
407-6426, e-mail danielle.edelman@
ecy.wa.gov.
Published February 22, 2023
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