Cosper Creek
6 water rights in Polk County, Oregon, with priority dates from June 5, 1935 to July 10, 2024.
Listed in priority order. When Cosper Creek runs short, the rights near the top of this list are filled first and the ones at the bottom are the first asked to stop. Rights on the same stream in a neighbouring county, or on connected groundwater, can sit in the same line; the state's water commissioner or district office has the full picture. Sources are matched by name within the county, so two different streams with the same name would share this page.
Priority date · senior to junior
- Before 1880
- 1880–1899
- 1900–1919
- 1920–1949
- 1950–1972
- 1973–1999
- 2000 and later
- No priority date
- #1Jun 5, 1935Application S 15858Cosper Creek · IrrigationWalter Werth · 0.15 cfs
- #2Oct 9, 1963Application S 39153Cosper Creek · IrrigationConfederated Tribes of the Grand Ronde Community of Oregon · 0.01 cfs
- #3Apr 28, 1975Application S 53051Cosper Creek · IrrigationElmer M Werth · 0.06 cfs
- #4Dec 1, 1976Application S 54989Cosper Creek · IrrigationConfederated Tribes of the Grand Ronde Community of Oregon · 0.06 cfs
- #5Apr 19, 1978Application S 57316Cosper Creek · IrrigationElmer M Werth · 0.02 cfs
- #6Jul 10, 2024Application IS 89637Cosper Creek · Multiple Instream UsesOregon Water Resources Department · 25 cfs