Reissuing the Irrigation System Aquatic Weed Control NPDES General Permit

Washington State Department of Ecology

Ecology home > Water Quality > Permits > Aquatic Pesticides Home > Irrigation System Aquatic Weed Control NPDES General Permit > Historic Permit Information

Aerial farm photo.

Historic Permit Information

2009-2010 Draft Permit

2010 Draft Permit (new text in red)
2010 Draft Fact Sheet Addendum
Response to Comments
Washington State Register Notice
News Release
Permit Advisory Committee meeting was held on December 15, 2009 in Yakima.
- Presentation from the meeting
Endothall information (Ecology publication)
Washington State Register Notice

2008 Permit

2007- 2008 Draft Permit

2007 Draft Permit
2007 Draft Fact Sheet
2007 Draft Focus Sheet (Ecology publication)

2007 Permit Advisory Committee

During the revision process the Permit Advisory Committee (Committee) gathered input from the stakeholders. The Committee held four meetings and reviewed a series of drafts of the proposed new permit.

The fourth meeting of the Permit Advisory Committee was held on Wednesday, August 29, 2007. We discussed the newest draft of the permit and the public comment period.
- Ecology's response to comments from the permit advisory committee.
- Department of Ecology presentation.
- Third draft (old) of the permit (clean copy - without annotations)
- Third draft (old) of the permit (with annotations – significant new language is in blue, the newest point of compliance language is in purple, new ditch bank application language is in orange, and the new copper language is in green)
The third meeting of the Permit Advisory Committee was held on August 16, 2006 in Sunnyside. The meeting focused on (1) determining the "point of compliance" and (2) the difficulties in setting limits for copper.
- Ecology Presentation.
- Second draft of the permit (with annotations).
- Second draft of the permit (clean copy-without annotations).
- Comments sent to Ecology.
The second meeting of the Permit Advisory Committee was held on February 22, 2006 in Sunnyside. The committee reviewed a first preliminary draft of the irrigation system permit. Another, more formal, public review draft was made available for review later that year. The due date for commenting on the draft was March 10, 2006.
- Draft permit.
- Comments from the Permit Advisory Committee on the draft permit received by the Department of Ecology.
The first meeting of the Permit Advisory Committee occurred on January 10, 2006 in Ellensburg. The following information was presented:
- Handouts on the timeline for reissuing the permit, 2005 reporting requirements, and clarification around the "no-spill situation".
- Presentation on the role of the permit advisory committee and major permit topics needing review.

2002 Permit

The previous version of the permit expired in May 2007.

For more information please contact:

Laurie Morgan, LHG
Hydrogeologist
Washington State Department of Ecology
Water Quality Program
PO Box 47600
Olympia, WA 98504-7600
(360) 407-6483
Email: Laurie.Morgan@ecy.wa.gov