Water right · Baker County, Oregon, United States
Mcmullin Slough groundwater water right G 10920
Mcmullin Slough groundwater water right G 10920 is a permitted water right in Baker County, Oregon, United States, held by City of Halfway.
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 G 10920 (Mcmullin Slough groundwater) | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Location | Baker County, Oregon | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Status | Permitted (permit) | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Holder | City of Halfway | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Flow | 37.9 l/s | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Priority date | 23 Jan 1989 | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Water use | Municipal uses | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Water source | Mcmullin Slough groundwater (groundwater) | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Coordinates | 44.8840, -117.1188 | 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 diversion rate
Mcmullin Slough groundwater water right G 10920 is the 8,073rd-largest of 11,179 water rights in Oregon and the 13,112th-largest of 20,031 in the United States by diversion rate, with 37.9 l/s. Its register states no face-value volume, only a maximum diversion rate, so it is ranked by that rate among the water rights in our data that state one. A rate is the most the right allows at any moment, not what is used, so rates are not added up.
| Within | Rank |
|---|---|
| Oregon | 8,073rd of 11,179 |
| United States | 13,112th of 20,031 |
How its holder compares
City of Halfway holds 2 of the 11,944 water rights in the United States in our data with a named owner; 1,038 owners have more. Counts cover the water rights in our data that name an owner, holder or operator; an asset with several owners counts for each.
| Holder in United States | Rank | Water rights | Share |
|---|---|---|---|
| Nevada Gold Mines LLC | 1st | 411 | 3.4% |
| Washoe County | 2nd | 200 | 1.7% |
| Oregon Department of Fish and Wildlife | 3rd | 194 | 1.6% |
| Southern Nevada Water Authority | 4th | 126 | 1.1% |
| Great Basin Water Co. | 5th | 125 | 1% |
| City of Halfway | 1,039th | 2 | <0.1% |
Nearby
Within 50 km of this water right: 2 mines and 1 power plant (675 MW), measured from the coordinates in the facts above.
Holder and place
More from City of Halfway
- Pine Creek groundwater water right G 10968water right
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.
- 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.
- Oregon Water Resources Department water rights (points of diversion). Oregon Water Resources Department water rights (points of diversion), Public domain by statute.