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GRANBY RESERVOIR NO. 7
Structure dossier · WDID 4003456 · 3 · DIRTY GEORGE CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:42 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 1895-09-30 — 1159th most senior of the 4661 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: TRICKLE RESERVOIR (1895-07-25). Immediately behind: CHEROKEE DITCH (1896-04-01).
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 |
|---|---|---|---|---|---|---|---|
| 20501.16709 | 1895-09-30 | 1907-09-28 | 12.0 | 0.0 | A | IRRMUNDOMPWR | 16 |
| 29260.2109 | 1907-09-29 | 1937-05-28 | 64.08 | 0.0 | A | IRRMUNDOMPWR | H29 |
Recorded use (last 15 years on record)
This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.
| 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 | Released (AF) | Days recorded | Peak (cfs) |
|---|---|---|---|---|---|
| 2008 | — | no recorded volume | 40 | 0 | — |
| 2009 | — | no recorded volume | 27 | 0 | — |
| 2010 | — | no recorded volume | 30 | 0 | — |
| 2012 | — | no recorded volume | 49 | 0 | — |
| 2013 | — | no recorded volume | 61 | 0 | — |
| 2014 | — | no recorded volume | 79 | 0 | — |
| 2016 | — | no recorded volume | 993 | 0 | — |
| 2017 | — | no recorded volume | 965 | 0 | — |
| 2018 | — | no recorded volume | 517 | 0 | — |
| 2019 | — | no recorded volume | 428 | 0 | — |
| 2020 | — | no recorded volume | 2,114 | 0 | — |
| 2021 | — | no recorded volume | 369 | 0 | — |
| 2022 | — | no recorded volume | 681 | 0 | — |
| 2023 | — | no recorded volume | 232 | 0 | — |
| 2024 | — | no recorded volume | 693 | 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.