Seniority, absolute versus conditional water, and decreed uses for all 6,217 water rights on record in Weld County, taken from the state's own records. Priority dates run from 1860-01-01 to 2024-01-16.
CFS on record: 25,450.4 absolute · 23,028.4 conditional. Flow (CFS) and volume (AF) are never added together.
Worth knowing: Weld County has about 2.1x more acre-feet decreed as conditional than as absolute. Conditional water is decreed on paper but not yet put to beneficial use. A buyer or lender who does not separate the two is valuing a different asset than the one on the ground.
In a dry year the oldest rights are served first. This is how Weld County's rights are distributed.
| Era | Rights | Share | |
|---|---|---|---|
| pre-1900 | 428 | 6.9% | |
| 1900-1949 | 2,457 | 39.5% | |
| 1950-1969 | 2,019 | 32.5% | |
| 1970-1999 | 651 | 10.5% | |
| 2000+ | 662 | 10.6% |
| Decreed use | Rights |
|---|---|
| Irrigation | 4,017 |
| Domestic | 1,397 |
| Stock | 1,289 |
| Augmentation | 629 |
| Municipal | 512 |
| Fire | 472 |
Ranked by the state's own priority administration number, the figure DWR uses to order rights by seniority.
| Priority | Structure | Source | Amount | Uses | Verify |
|---|---|---|---|---|---|
| 1860-01-01 | SIEGRIST DIVR PT 1 | SAINT VRAIN CREEK | 4.0 CFS | Irrigation | state record |
| 1860-01-01 | J BAR B HAYSEED DIVR | SAINT VRAIN CREEK | 2.0 CFS | Irrigation | state record |
| 1860-01-01 | ANDERSON HAYSEED DITCH | SAINT VRAIN CREEK | 2.5 CFS | Irrigation | state record |
| 1860-01-01 | RADEMACHER WELL | GROUNDWATER: SAINT VRAIN CREEK | 2.0 CFS | Storage, Irrigation, Commercial, Industrial, Recreation, Fishery, Augmentation | state record |
| 1860-01-01 | RADEMACHER WELL | GROUNDWATER: SAINT VRAIN CREEK | 122.7 AF | Storage, Irrigation, Commercial, Industrial, Recreation, Fishery, Augmentation | state record |
| 1861-03-01 | GODDING DAILEY PLUMB D | BOULDER CREEK | 7.24 CFS | Irrigation | state record |
| 1861-04-01 | HOUCK 2 DITCH | BOULDER CREEK | 3.8 CFS | Irrigation, Recreation, Fishery, Augmentation, Wildlife | state record |
| 1861-04-01 | HOUCK 2 DITCH | BOULDER CREEK | 379.0 AF | Irrigation, Recreation, Fishery, Augmentation, Wildlife | state record |
| 1861-06-01 | CARR TYLER DITCH | BOULDER CREEK | 1.5 CFS | Irrigation | state record |
| 1862-03-15 | BOYD FREEMAN DITCH | CACHE LA POUDRE RIVER | 54.05 CFS | Irrigation | state record |
This page is the summary. The full file for Weld County covers every one of the 6,217 rights, with its priority date, seniority number, absolute and conditional amounts, decreed uses and a link to each official record, as a spreadsheet.
Buying, lending on, or listing irrigated ground here? Ask for the county file, or for a single property's water summary. The first one is on me.
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Records last updated 10 September 2026.