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AURORA EVERIST RESERVOIR 1
Structure dossier · WDID 0203087 · RESERVOIR SYSTEM · SOUTH PLATTE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 23:04 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (0576005) — 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.
Current administration
● Junior rights called out — call at LOWER LATHAM DITCH (SOUTH PLATTE RIVER, priority 1877-11-14).
● Fully called out — call at WESTERN MUTUAL DITCH (SOUTH PLATTE RIVER, priority 1871-08-09).
● Junior rights called out — call at HARMONY DITCH 1 (SOUTH PLATTE RIVER, priority 1897-05-02).
● Junior rights called out — call at SOUTH PLATTE RIVER COMPACT (SOUTH PLATTE RIVER, priority 1897-06-13).
● Junior rights called out — call at LOWER PLATTE BEAVER D (SOUTH PLATTE RIVER, priority 1888-04-14).
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 1873-09-15 — 429th most senior of the 21881 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: 0203058 (1873-09-15). Immediately behind: 0203410 (1873-09-15).
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 |
|---|---|---|---|---|---|---|---|
| 8659.0 | 1873-09-15 | 1883-04-28 | 0.0 | 0.0 | C | MUN | |
| 57395.0 | 2007-02-21 | 2002-12-31 | 0.0 | 7000.0 | A | MUN |
Legal record & documents
11 decreed actions on record across
3 court cases:
02CW0330, 18CW3038, 14CW3177.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
02CW0330 | 1 | 2002-12-31 | S |
18CW3038 | 6 | 1883-04-28 | O |
14CW3177 | 4 | 1883-04-28 | 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 9 years on record)
In a median year this structure has a recorded diversion of 423 AF. Its most recent year on record, 2025, came in at 237 AF — 56% of that, and 4th lowest of the 9 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) |
|---|---|---|---|---|
| 2016 | 584 | 6th lowest of 9 · 138% of median | 111 | 3.6 |
| 2018 | 423 | 5th lowest of 9 · 100% of median | 92 | 4.6 |
| 2019 | 781 | 9th lowest of 9 · 185% of median | 115 | 4.6 |
| 2020 | 748 | 8th lowest of 9 · 177% of median | 206 | 4.0 |
| 2021 | 0 | 1st lowest of 9 · 0% of median | 1 | 0.0 |
| 2022 | 0 | 1st lowest of 9 · 0% of median | 61 | 0.0 |
| 2023 | 173 | 3rd lowest of 9 · 41% of median | 304 | 6.0 |
| 2024 | 666 | 7th lowest of 9 · 157% of median | 188 | 3.8 |
| 2025 | 237 | 4th lowest of 9 · 56% of median | 304 | 3.3 |
Trends for this structure
Recorded use shows no clear trend over its last 9 recorded years — which is itself worth knowing.
How good is our record of it?
Grade B (8/10 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 | 1382 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 68% of the irrigation seasons in 2016-2025 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.