Current and Previous General Permits
Current General Permit
Ecology issued Washington State's general permit for water treatment plants on July 16, 2014. The 5-year effective term covered by the current permit is from September 1, 2014, through August 31, 2019. Copies of the current permit and associated documentation are available via the following links:
Previous General Permits (now expired)
Ecology issued Washington State's original general permit for water treatment plants on December 3, 1997. Ecology administratively extended and re-issued this permit, with minor changes, in 2003, 2004, and 2009. The links below provide access to earlier versions of the WTP general permit and related documents.
For more information, please contact James Maroncelli at James.Maroncelli@ecy.wa.gov, or 360-407-6588.
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