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MCLAIN SPRING
Structure dossier · WDID 2800885 · 4 · QUARTZ CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:39 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.
Which of its rights get called out?
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 2002-04-01 — 1405th most senior of the 1505 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: TROUT POND SPRING (1996-05-01). Immediately behind: GARFIELD WELL NO1 (2002-06-19).
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 56978.55608 | 2002-04-01 | 2006-12-31 | 0.72 | 0.0 | C | IRR |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 1,072 AF. Its most recent year on record, 2025, came in at 330 AF — 31% of that, and 1st lowest of the 15 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) |
|---|---|---|---|---|
| 2011 | 1,642 | 14th lowest of 15 · 153% of median | 97 | 13.5 |
| 2012 | 487 | 2nd lowest of 15 · 45% of median | 82 | 8.0 |
| 2013 | 1,054 | 7th lowest of 15 · 98% of median | 101 | 12.2 |
| 2014 | 1,383 | 13th lowest of 15 · 129% of median | 127 | 13.0 |
| 2015 | 1,072 | 8th lowest of 15 · 100% of median | 66 | 9.6 |
| 2016 | 1,990 | 15th lowest of 15 · 186% of median | 107 | 10.6 |
| 2017 | 1,352 | 12th lowest of 15 · 126% of median | 95 | 10.9 |
| 2018 | 1,286 | 10th lowest of 15 · 120% of median | 150 | 8.2 |
| 2019 | 1,149 | 9th lowest of 15 · 107% of median | 61 | 12.9 |
| 2020 | 568 | 4th lowest of 15 · 53% of median | 113 | 8.2 |
| 2021 | 542 | 3rd lowest of 15 · 51% of median | 51 | 6.6 |
| 2022 | 722 | 5th lowest of 15 · 67% of median | 69 | 6.0 |
| 2023 | 1,027 | 6th lowest of 15 · 96% of median | 72 | 9.0 |
| 2024 | 1,344 | 11th lowest of 15 · 125% of median | 92 | 7.9 |
| 2025 | 330 | 1st lowest of 15 · 31% of median | 41 | 4.3 |
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.