Aquatic Weed Control in Irrigation Systems
The permit provides coverage for irrigation districts and irrigation water suppliers who apply aquatic herbicides in irrigation canals or ditches. Currently, sixteen irrigation districts and irrigation water suppliers are covered by the permit.
On November 15, 2005, the department of ecology filed a state register notice (WSR 05-23-068). In that notice, the department of ecology had made a preliminary determination to issue only a state waste discharge general permit. After receiving feedback from stakeholders, we are now planning to issue a combination national pollutant discharge elimination system (NPDES) and state waste discharge general permit.
We expect to complete the draft version of the permit and release it for public comment by October 2006. The proposed timeline for drafting the permit is:
|October 2006||Public notice of draft permit|
|November 2006||Public hearings and end of the public comment period|
|January 2007||Issue final permit|
The department of ecology will keep a mailing list to inform the public of significant stages in the development of the permit, including notices of the draft permit, public hearings, and issuance of the permit. Information will also be posted on the department of ecology's web page at http://www.ecy.wa.gov/programs/wq/pesticides/index.html.
To join the mailing list, to comment on the appropriateness of general permits instead of individual permits, or to provide information on potential dischargers, please contact Andrew Kolosseus, Washington State Department of Ecology, Water Quality Program, P.O. Box 47600, Olympia, WA 98504-7600, (360) 407-7543.