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OLDS RESERVOIR
Structure dossier · WDID 0103845 · 3 · LOST CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 23:32 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.
Where it sits
Location as DWR records it. Faint dots are the neighbouring water; click any to open it.
Which of its rights are out of priority?
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 1918-01-28 — 650th most senior of the 7705 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: SCHNORR WELL 1 (1918-06-30). Immediately behind: STEPHENSON WELL 5-69354 (1918-08-10).
Decreed rights (2)
| 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 |
|---|---|---|---|---|---|---|---|
| 25050.24864 | 1918-01-28 | 1924-11-12 | 533.71 | 0.0 | A | IRR | |
| 26463.0 | 1922-06-15 | 1924-11-12 | 547.75 | 0.0 | A | IRR |
Legal record & documents
2 decreed actions on record across
1 court case:
CA54658.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA54658 | 2 | 1924-11-12 | S |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 13 years on record)
In a median year this structure has a recorded diversion of 1,587 AF. Its most recent year on record, 2024, came in at 401 AF — 25% of that, and 2nd lowest of the 13 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) |
|---|---|---|---|---|
| 1980 | 4,711 | 13th lowest of 13 · 297% of median | 102 | 30.0 |
| 1981 | 2,537 | 11th lowest of 13 · 160% of median | 52 | 35.0 |
| 1983 | 518 | 4th lowest of 13 · 33% of median | 10 | 29.0 |
| 1984 | 1,845 | 9th lowest of 13 · 116% of median | 42 | 30.0 |
| 2009 | 1,654 | 8th lowest of 13 · 104% of median | 48 | 36.5 |
| 2010 | 2,920 | 12th lowest of 13 · 184% of median | 66 | 26.0 |
| 2011 | 353 | 1st lowest of 13 · 22% of median | 14 | 31.0 |
| 2012 | 1,349 | 6th lowest of 13 · 85% of median | 25 | 30.0 |
| 2014 | 1,273 | 5th lowest of 13 · 80% of median | 27 | 32.0 |
| 2015 | 1,587 | 7th lowest of 13 · 100% of median | 41 | 30.0 |
| 2016 | 1,863 | 10th lowest of 13 · 117% of median | 66 | 29.0 |
| 2023 | 407 | 3rd lowest of 13 · 26% of median | 7 | 47.4 |
| 2024 | 401 | 2nd lowest of 13 · 25% of median | 33 | 26.0 |
Trends for this structure
Recorded use shows no clear trend over its last 13 recorded years — which is itself worth knowing.
How good is our record of it?
Grade B (7/10 points) — the components below are the finding; the letter alone is not.
The rubric, component by component
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 2 right(s), seniority decoded |
| diversion record | present | 533 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 6% of the irrigation seasons in 1980-2024 carry measured days |
| published-record stability | stable | no upstream revisions recorded against this structure |
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.