The following TMDLs are adopted by EQC by reference in this rule on the dates indicated. The TMDL documents and supporting information for TMDLs adopted as rule or issued by order are available on DEQ's website.
(1) Upper Yaquina River Watershed, USGS watershed of the Northern Oregon Coastal Basin (HUC 1710020401):
(a) TMDL: bacteria and dissolved oxygen, September 14, 2023
(b) WQMP: bacteria and dissolved oxygen, September 14, 2023
(2) Powder River Basin, USGS
Subbasin of the Middle Snake-Powder Basin (HUC 170502), including the Powder River
Subbasin (HUC 17050203), Burnt River
Subbasin (HUC 17050202) and Brownlee
Subbasin (HUC 17050201):
(a) TMDL: bacteria for E. coli, May 23, 2024
(b) WQMP: bacteria for E. coli, May 23, 2024
(3) Willamette Subbasins - Ten subbasins within the Willamette Basin (HUC 170900), including the Middle Fork Willamette
Subbasin (HUC 17090001), Coast Fork Willamette
Subbasin (HUC 17090002), Upper Willamette
Subbasin (HUC 17090003), McKenzie
Subbasin (HUC 17090004), North Santiam
Subbasin (HUC 17090005), South Santiam
Subbasin (HUC 17090006), Middle Willamette
Subbasin (HUC 17090007), Molalla-Pudding
Subbasin (HUC 17090009), Clackamas
Subbasin (HUC 17090011), and Lower Willamette
Subbasin (HUC 17090012). Waters excluded from the Willamette Subbasins TMDLs include the Willamette River, Multnomah Channel, and tributaries to the Willamette River downstream of the following dams: River Mill Dam, Detroit Dam, Foster Dam, Fern Ridge Dam, Dexter Dam, Fall Creek Dam, and Cottage Grove Dam.
(a) TMDL: temperature, August 6, 2024
(b) WQMP: temperature, August 6, 2024
Notes
Or. Admin. Code § 340-042-0090
DEQ 14-2023, adopt filed 09/15/2023, effective 9/15/2023; DEQ 9-2024, amend filed 05/28/2024, effective 5/28/2024; DEQ 13-2024, amend filed 08/06/2024, effective 8/6/2024
Statutory/Other Authority: ORS 468.020, 468.065, 468B.030 & 468B.035
Statutes/Other Implemented: ORS 468B.020 & 468B.110
