Water right · Multnomah County, Oregon, United States
Columbia Slough groundwater water right G 8755
Columbia Slough groundwater water right G 8755 is a permitted water right in Multnomah County, Oregon, United States, held by City of Portland.
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 8755 (Columbia Slough groundwater) | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Location | Multnomah 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 Portland | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Flow | 11,044 l/s | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Priority date | 12 Nov 1976 | 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 | Columbia Slough groundwater (groundwater) | Oregon Water Resources Department water rights (points of diversion) · record · Public domain by statute · checked 24 Oct 2026 |
| Coordinates | 45.5681, -122.5551 | 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
Columbia Slough groundwater water right G 8755 is the 25th-largest of 11,179 water rights in Oregon and the 43rd-largest of 20,031 in the United States by diversion rate, with 11,044 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 | 25th of 11,179 |
| United States | 43rd of 20,031 |
How its holder compares
City of Portland holds 5 of the 11,944 water rights in the United States in our data with a named owner; 435 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 Portland | 436th | 5 | <0.1% |
Nearby
Within 50 km of this water right: 32 data centers (1 operating, 180 MW), 2 mines (1 operating) and 1 power plant (1,162 MW), measured from the coordinates in the facts above. The table shows the nearest 6, up to 3 per kind.
| Name | Kind | Size | Status | Distance |
|---|---|---|---|---|
| H5 DC - Portland | Data center | — | — | 11 km |
| The Pittock Internet Exchange | Data center | — | — | 11 km |
| Pittock Block | Data center | — | — | 11 km |
| Gresham Clay Mine | Mine | — | Closed | 15 km |
| Santosh DBA CalPortland | Mine | — | Operating | 34 km |
| Bonneville | Power plant | 1,162 MW | Operating | 49 km |
Holder and place
More from City of Portland
- Bull Run River water right S 43856water right · power
- Bull Run River water right S 43857water right · power
- Memorial Coliseum We water right 30318water right
- Columbia Slough groundwater water right 46491water 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.
- © 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.