Watershed Profiles & Water Quality Data

Alsea River Basin

Location: Lincoln, Benton, Lane County
Incorporated Areas: Waldport, Five Rivers, Alsea
Basin Size: 302,720 Acres
Major Tributaries: Canal Creek, Drift Creek, Fall Creek, Five Rivers, Lobster Creek, South Fork
Water Quality: 2010 303(d) listings (PDF), LSWCD Water Quality Data 2011 to 2015 (Excel)

Yachats River Basin

Location: Lincoln, Lane County
Incorporated Areas: Yachats
Basin Size: 39,040 Acres
Major Tributaries: North Fork, School Fork, Stump Creek
Water Quality: 2010 303(d) listings (PDF)

Beaver Creek Basin

Location: Lincoln County
Incorporated Areas: Seal Rock
Basin Size: < 30,000 Acres
Major Tributaries: North Fork, South Fork, Oliver Creek, Elkhorn Creek, Bowers Creek, Peterson Creek
Water Quality: 2010 303(d) listings (PDF), LSWCD Water Quality Data 2010 to 2015 (Excel)

Yaquina River Basin

Location: Lincoln, Benton County
Incorporated Areas: Newport, Toledo, Harlan, Eddyville, Burnt Woods
Basin Size: 161,920 Acres
Major Tributaries: Depot Creek, Big Elk Creek, Little Elk Creek, Mill Creek, Olalla Creek, Thornton Creek
Water Quality: 2010 303(d) listings for Yaquina River (PDF), LSWCD Water Quality Data 2009 to 2015 (Excel)

Siletz River Basin

Location: Lincoln, Polk County
Incorporated Areas: Siletz, Logsden
Basin Size: 197,120 Acres
Major Tributaries: Cedar Creek, Euchre Creek, Gravel Creek, North Fork, Rock Creek, South Fork, Sunshine Creek
Water Quality: 2010 303(d) listings for Siletz River (PDF), LSWCD Water Quality Data 2011 to 2015 (Excel)

Salmon River Basin

Location: Lincoln, Polk, Tillamook County
Incorporated Areas: Otis, Redlodge
Basin Size: 49,920 Acres
Major Tributaries: Bear Creek, Little Salmon River, Salmon Creek, Slick Rock Creek, Treat River, Trout Creek
Water Quality: 2010 303(d) listings (PDF) for Salmon River, Salmon-Drift Creek Watershed Council Water Quality Monitoring