OAR 340-041-0103: Basin-Specific Criteria (Main Stem Columbia River): Approved TMDLs in the Basin
Edition: Current OARD snapshotEffective: 2003-12-09Last verified: 2026-09-07
The following TMDLs have been approved by EPA, and appear on the Department’s web site: Columbia River — Dioxin — February 25, 1991 Columbia River — Dissolved Gas — November 11, 2002
Official history and status
Statutory/Other Authority: ORS 468.020, 468B.030, 468B.035 & 468B.048
Statutes/Other Implemented: ORS 468B.030, 468B.035 & 468B.048
History: DEQ 17-2003, f. & cert. ef. 12-9-03
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Official source: https://secure.sos.state.or.us/oard/