Seniority, absolute versus conditional water, and decreed uses for all 3,784 water rights on record in Delta County, taken from the state's own records. Priority dates run from 1878-07-31 to 2025-12-12.
CFS on record: 5,201.9 absolute · 1,542.8 conditional. Flow (CFS) and volume (AF) are never added together.
Worth knowing: 340 rights in Delta County carry a conditional portion, water that is decreed but not yet perfected. Absolute and conditional are not the same asset.
In a dry year the oldest rights are served first. This is how Delta County's rights are distributed.
| Era | Rights | Share | |
|---|---|---|---|
| pre-1900 | 886 | 23.4% | |
| 1900-1949 | 1,045 | 27.6% | |
| 1950-1969 | 356 | 9.4% | |
| 1970-1999 | 865 | 22.9% | |
| 2000+ | 632 | 16.7% |
| Decreed use | Rights |
|---|---|
| Irrigation | 2,851 |
| Stock | 1,017 |
| Domestic | 751 |
| Wildlife | 307 |
| Fishery | 304 |
| Recreation | 163 |
Ranked by the state's own priority administration number, the figure DWR uses to order rights by seniority.
| Priority | Structure | Source | Amount | Uses | Verify |
|---|---|---|---|---|---|
| 1881-12-17 | CEDAREDGE PIPELINE | SURFACE CREEK | 1.05 CFS | Irrigation, Municipal, Domestic, Power generation, Other | state record |
| 1881-12-17 | ALFALFA DITCH | SURFACE CREEK | 14.15 CFS | Storage, Irrigation, Municipal, Domestic, Stock | state record |
| 1881-12-17 | BUTTES DITCH | SURFACE CREEK | 1.1 CFS | Irrigation | state record |
| 1881-12-17 | FORREST DITCH | SURFACE CREEK | 1.5 CFS | Irrigation | state record |
| 1881-12-17 | ADDITIONAL SPRING NO1 | BEAVER CREEK | 0.25 CFS | Irrigation, Municipal, Domestic | state record |
| 1881-12-17 | ADDITIONAL SPRING NO2 | BEAVER CREEK | 0.1 CFS | Irrigation, Municipal, Domestic, Stock | state record |
| 1881-12-17 | ADDITIONAL SPRING NO3 | BEAVER CREEK | 0.3 CFS | Irrigation, Municipal, Domestic | state record |
| 1881-12-17 | ADDITIONAL SPRING NO4 | BEAVER CREEK | 0.1 CFS | Irrigation, Municipal, Domestic | state record |
| 1881-12-17 | ADDITIONAL SPRING NO9 | SURFACE CREEK | 0.1 CFS | Irrigation, Municipal, Domestic | state record |
| 1881-12-17 | ORCHARD CITY PIPELINE | SURFACE CREEK | 1.0 CFS | Irrigation, Municipal, Domestic | state record |
This page is the summary. The full file for Delta County covers every one of the 3,784 rights, with its priority date, seniority number, absolute and conditional amounts, decreed uses and a link to each official record, as a spreadsheet.
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Records last updated 17 September 2026.