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Impaired Waters and TMDLs
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Disapproval of Revised Willamette Basin Mercury TMDL

Related Information
  • EPA's Willamette Basin Mercury TMDL
  • Oregon's Willamette Basin Mercury TMDL
  • Impaired Waters and TMDLs in Region 10

Below is a copy of EPA's disapproval of Oregon's revised Willamette Basin Mercury Total Maximum Daily Load (TMDL) submitted to EPA on November 22, 2019. EPA's Decision Rationale is included.

  • Disapproval of Revised Willamette Basin Mercury TMDL (pdf) (1.44 MB, November 29, 2019)
    EPA's disapproval notice and Decision Rationale.
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Last updated on December 30, 2019
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