Water right · Umatilla County, Oregon, United States
Mckay Reservoir water right 91877
Mckay Reservoir water right 91877 is a water right in Umatilla County, Oregon, United States, with 129 acre-ft/year of face-value volume.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Name in the source | Water right 91877 (Mckay Reservoir) | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Location | Umatilla County, Oregon | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Status | Active (certificate) | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Volume | 129 acre-ft/year (face value) | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Priority date | 20 Apr 1959 | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Water use | Supplemental irrigation | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Water source | Mckay Reservoir (surface water) | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Coordinates | 45.6076, -118.7924 | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
Research on this water right and its holder.Who holds it up to the parent company, its use, its transfers and the land it serves, and an introduction to the holder.
Request researchHow it compares by face-value volume
Mckay Reservoir water right 91877 is the 675th-largest of 803 water rights in Oregon and the 9,601st-largest of 10,558 in the United States by face-value volume, with 129 acre-ft/year. Ranks and totals cover the water rights in our data that report their face-value volume, not every one in existence. Storage and power rights are ranked apart and not added in.
| Within | Rank |
|---|---|
| Oregon | 675th of 803 |
| United States | 9,601st of 10,558 |
Nearby
Within 50 km of this water right: 3 power plants (2 operating, 1,311 MW), 3 data centers and 1 mine, measured from the coordinates in the facts above.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| Nolin Hills | Power plant | 600 MW | Planned | 26 km |
| Amazon Web Services | Data center | — | — | 44 km |
| Hermiston Power Partnership | Power plant | 689 MW | Operating | 45 km |
| Portable Crusher #5 | Mine | — | Operating | 48 km |
| Amazon Web Services | Data center | — | — | 49 km |
| Amazon Web Services | Data center | — | — | 49 km |
| Hermiston Generating Plant | Power plant | 621 MW | Operating | 50 km |
Place
Other water rights in Oregon
- Klamath River water right KA 1000540,778 acre-ft/year
- Owyhee Reservoir water right 75691357,277 acre-ft/year
- Rogue River water right 54020125,000 acre-ft/year
- Klamath River water right KA 313108,229 acre-ft/year
- Klamath River water right KA 31276,715 acre-ft/year
- Mckay Reservoir water right 9635173,250 acre-ft/year
- Mckay Reservoir water right 9635373,250 acre-ft/year
- Upper Klamath Lake water right KA 32066,206 acre-ft/year
Data on this page
- Source: U.S. Energy Information Administration (Sep 2026). EIA-860 / 860M / 923, Public domain.
- eWRIMS Water Rights List. eWRIMS Water Rights List, Public domain.
- MSHA Mines Data Set. MSHA Mines Data Set, Public domain.
- Nevada Division of Water Resources water rights points of diversion. Nevada Division of Water Resources water rights points of diversion, CC0 1.0 Universal.
- © OpenStreetMap contributors. OpenStreetMap data centers, ODbL 1.0.
- Oregon Water Resources Department water rights (points of diversion). Oregon Water Resources Department water rights (points of diversion), Public domain by statute.