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EASTDALE 1 CNL
Structure dossier · WDID 2400537 · 1 · COSTILLA CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:14 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 1890-04-21 — 49th most senior of the 453 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: ROBERT ALLEN D (1887-03-31). Immediately behind: EASTDALE 2 CNL (1890-04-21).
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 |
|---|---|---|---|---|---|---|---|
| 14721.0 | 1890-04-21 | 1905-12-14 | 30.0 | 0.0 | C | IRR | 49 |
| 14721.0 | 1890-04-21 | 1905-12-14 | 30.0 | 0.0 | C | IRR | 4NIS |
| 21452.0 | 1908-09-25 | 1935-02-11 | 450.0 | 0.0 | C | IRRINDDOM | 1934-12 |
| 45442.0 | 1974-06-01 | 1974-12-31 | 100.0 | 0.0 | C | STOIRR |
Recorded use (last 13 years on record)
In a median year this structure has a recorded diversion of 1,044 AF. Its most recent year on record, 2025, came in at 1,044 AF — 100% of that, and 7th 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) |
|---|---|---|---|---|
| 1976 | 1,299 | 12th lowest of 13 · 124% of median | 52 | 42.0 |
| 2004 | 1,205 | 10th lowest of 13 · 115% of median | 167 | 46.0 |
| 2015 | 920 | 3rd lowest of 13 · 88% of median | 45 | 15.0 |
| 2016 | 1,120 | 9th lowest of 13 · 107% of median | 32 | 33.9 |
| 2017 | 3,009 | 13th lowest of 13 · 288% of median | 49 | 49.0 |
| 2018 | 850 | 2nd lowest of 13 · 81% of median | 53 | 22.3 |
| 2019 | 1,052 | 8th lowest of 13 · 101% of median | 28 | 41.8 |
| 2020 | 1,031 | 4th lowest of 13 · 99% of median | 32 | 26.8 |
| 2021 | 1,038 | 6th lowest of 13 · 99% of median | 20 | 39.4 |
| 2022 | 1,032 | 5th lowest of 13 · 99% of median | 33 | 34.7 |
| 2023 | 1,234 | 11th lowest of 13 · 118% of median | 46 | 33.0 |
| 2024 | 724 | 1st lowest of 13 · 69% of median | 97 | 6.0 |
| 2025 | 1,044 | 7th lowest of 13 · 100% of median | 55 | 38.0 |
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.