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SAN JOSE D 1
Structure dossier · WDID 2100591 · 1 · ALAMOSA RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 20:27 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (2deb1d7) — every figure regenerates from this named code version and data image.
Which of its rights get called out?
Not computable for this structure: this structure is not on the modelled flow network, so no reference gage can honestly stand in for it.
Where it sits in line
Priority 1873-04-13 — 27th most senior of the 1041 structures with decreed rights in this water districtDWR's administrative subdivision of a river basin; the unit calls are usually stated in..
Under prior appropriationColorado's rule for sharing water: first in time, first in right. Age decides, not proximity or need., everything ahead of it in this line is satisfied in full before it receives any water. Immediately ahead: ROMERO D (1873-04-13). Immediately behind: GALLEGOS D 4 (1873-04-15).
Decreed rights (1)
| Admin noDWR's numeric encoding of a water right's seniority. Smaller is more senior; the integer part counts days from 1849-12-31 to the date that ranks the right. | AppropriatedWhen water was first put to beneficial use. It sets seniority unless a prior adjudication date is later. | AdjudicatedWhen the water court confirmed the right. A use decreed in 1975 was not a decreed use in 1955, however old the appropriation is. | AbsoluteA right actually put to use, as opposed to conditional -- a placeholder for a use not yet made. | ConditionalA right reserving a place in line for a use not yet made; it must be diligently pursued or it lapses. | Units | UsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on. | Case |
|---|---|---|---|---|---|---|---|
| 8504.0 | 1873-04-13 | 1888-07-11 | 4.166 | 0.0 | C | IRR | 17 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 507 AF. Its most recent year on record, 2025, came in at 654 AF — 129% of that, and 14th lowest of the 15 years with a recorded volume.
| Year | Diverted (AFA volume: one acre covered a foot deep, about 326,000 gallons -- roughly a suburban household's outdoor use for a year.) | Compared with its own record | Days recorded | Peak (cfs) |
|---|---|---|---|---|
| 2011 | 406 | 5th lowest of 15 · 80% of median | 70 | 4.1 |
| 2012 | 300 | 2nd lowest of 15 · 59% of median | 50 | 4.1 |
| 2013 | 265 | 1st lowest of 15 · 52% of median | 48 | 4.2 |
| 2014 | 533 | 10th lowest of 15 · 105% of median | 89 | 4.2 |
| 2015 | 507 | 8th lowest of 15 · 100% of median | 72 | 4.8 |
| 2016 | 432 | 6th lowest of 15 · 85% of median | 79 | 5.1 |
| 2017 | 526 | 9th lowest of 15 · 104% of median | 119 | 5.3 |
| 2018 | 376 | 4th lowest of 15 · 74% of median | 61 | 5.4 |
| 2019 | 572 | 12th lowest of 15 · 113% of median | 118 | 5.5 |
| 2020 | 355 | 3rd lowest of 15 · 70% of median | 46 | 4.7 |
| 2021 | 497 | 7th lowest of 15 · 98% of median | 68 | 4.2 |
| 2022 | 562 | 11th lowest of 15 · 111% of median | 76 | 4.8 |
| 2023 | 780 | 15th lowest of 15 · 154% of median | 95 | 4.5 |
| 2024 | 641 | 13th lowest of 15 · 126% of median | 82 | 4.3 |
| 2025 | 654 | 14th lowest of 15 · 129% of median | 87 | 4.2 |
Advisory reading aid on public data — not an administrative or legal conclusion, not a title opinion, and not a substitute for DWR administration or an engineer's analysis. Methodology review status is disclosed at hydrohistorian's basin pages.