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WILEY DRAIN-UPPER DIVERSION
Structure dossier · WDID 6700687 · 1 · PLEASANT VALLEY DRAINAGE · DWR record
Where this page's figures come from
Generated 2026-08-27 19:52 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 in line
Priority 1895-04-01 — 62nd most senior of the 2116 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: EATON WELL (1897-01-01). Immediately behind: WILEY DRAIN-LOWER DIVERSION (1895-04-01).
Decreed rights (8)
| 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 |
|---|---|---|---|---|---|---|---|
| 17479.16527 | 1895-04-01 | 1906-04-27 | 3.32 | 0.0 | C | IRR | 1 |
| 17479.16816 | 1895-04-01 | 1906-04-27 | 0.91 | 0.0 | C | IRR | 1, 2 |
| 17479.16856 | 1896-02-24 | 1906-04-27 | 1.08 | 0.0 | C | IRR | 3 |
| 17479.16893 | 1896-04-01 | 1906-04-27 | 1.26 | 0.0 | C | IRR | 4 |
| 17479.16923 | 1896-05-01 | 1906-04-27 | 0.54 | 0.0 | C | IRR | 5 |
| 17623.0 | 1898-04-01 | 1906-04-27 | 1.08 | 0.0 | C | IRR | 6 |
| 18718.0 | 1901-04-01 | 1906-04-27 | 1.17 | 0.0 | C | IRR | 9 |
| 19797.0 | 1904-03-15 | 1906-04-27 | 0.18 | 0.0 | C | IRR | 11 |
Recorded use (last 10 years on record)
In a median year this structure has a recorded diversion of 566 AF. Its most recent year on record, 2025, came in at 943 AF — 167% of that, and 8th lowest of the 10 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) |
|---|---|---|---|---|
| 2015 | 347 | 5th lowest of 10 · 61% of median | 41 | 5.7 |
| 2016 | 1,059 | 9th lowest of 10 · 187% of median | 142 | 4.9 |
| 2017 | 99 | 2nd lowest of 10 · 18% of median | 9 | 11.9 |
| 2019 | 37 | 1st lowest of 10 · 6% of median | 5 | 3.7 |
| 2020 | 116 | 3rd lowest of 10 · 20% of median | 16 | 4.5 |
| 2021 | 261 | 4th lowest of 10 · 46% of median | 61 | 4.3 |
| 2022 | 2,336 | 10th lowest of 10 · 413% of median | 365 | 9.1 |
| 2023 | 800 | 7th lowest of 10 · 141% of median | 365 | 4.5 |
| 2024 | 785 | 6th lowest of 10 · 139% of median | 366 | 4.8 |
| 2025 | 943 | 8th lowest of 10 · 167% of median | 304 | 4.8 |
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.