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BRUSH HOLLOW RESERVOIR
Structure dossier · WDID 1203779 · 3 · BRUSH HOLLOW CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 23:55 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 1877-12-31 — 224th most senior of the 1967 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: PHANTOM CANYON RESERVOIR (1877-12-31). Immediately behind: PENROSE WD WELL H6 (1877-12-31).
Decreed rights (4)
| 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 |
|---|---|---|---|---|---|---|---|
| 10227.0 | 1877-12-31 | 1906-07-02 | 0.0 | 0.0 | C | MUNCOMRECFISFIRDOMAUGWLD | 194 |
| 12204.0 | 1883-05-31 | 1894-02-03 | 0.0 | 0.0 | C | MUNCOMRECFISFIRDOMAUGWLD | 291 |
| 27709.20911 | 1907-04-03 | 1926-02-01 | 4185.62 | 0.0 | A | STO | |
| 49673.49387 | 1985-03-20 | 1986-12-31 | 0.0 | 0.0 | C | ALL |
Legal record & documents
16 decreed actions on record across
4 court cases:
86CW0118B, 86CW0118A, CA4655, 06CW0012.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
86CW0118B | 3 | 1986-12-31 | S |
86CW0118A | 9 | 1986-12-31 | S |
CA4655 | 2 | 1926-02-01 | S |
06CW0012 | 2 | 1906-07-02 | O |
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 11 years on record)
In a median year this structure has a recorded diversion of 1,039 AF. Its most recent year on record, 2025, came in at 1,361 AF — 131% of that, and 9th lowest of the 11 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) |
|---|---|---|---|---|
| 1973 | 672 | 4th lowest of 11 · 65% of median | 61 | 7.0 |
| 1974 | 2,160 | 11th lowest of 11 · 208% of median | 126 | 21.0 |
| 1991 | 586 | 3rd lowest of 11 · 56% of median | 27 | 29.3 |
| 2018 | 24 | 1st lowest of 11 · 2% of median | 12 | 1.1 |
| 2019 | 500 | 2nd lowest of 11 · 48% of median | 120 | 9.4 |
| 2020 | 726 | 5th lowest of 11 · 70% of median | 136 | 10.1 |
| 2021 | 1,103 | 7th lowest of 11 · 106% of median | 365 | 14.4 |
| 2022 | 1,039 | 6th lowest of 11 · 100% of median | 365 | 11.8 |
| 2023 | 1,301 | 8th lowest of 11 · 125% of median | 365 | 16.8 |
| 2024 | 1,883 | 10th lowest of 11 · 181% of median | 365 | 20.7 |
| 2025 | 1,361 | 9th lowest of 11 · 131% of median | 304 | 12.8 |
Trends for this structure
Recorded use shows no clear trend over its last 11 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 | 4 right(s), seniority decoded |
| diversion record | present | 2246 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 20% of the irrigation seasons in 1973-2025 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.