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GREELEY FLATIRON RESERVOIR 1-5

Structure dossier · WDID 0303791 · 3 · CACHE LA POUDRE RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:11 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 1999-12-30 — 2742nd most senior of the 2961 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: GREELEY IMPACT REACH B (1999-12-30). Immediately behind: GREELEY E 8TH STREET RESERVOIR (1999-12-30).

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. UnitsUsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
54785.01999-12-301999-12-31 1458.64793.4 AMUNALL

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 732 AF. Its most recent year on record, 2024, came in at 749 AF — 102% of that, and 9th lowest of the 15 years with a recorded volume.

This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.

YearDiverted (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 recordReleased (AF)Days recordedPeak (cfs)
2010 1,112 12th lowest of 15 · 152% of median 57 143 25.5
2011 1,187 13th lowest of 15 · 162% of median 78 304 15.4
2012 446 5th lowest of 15 · 61% of median 920 99 4.9
2013 1,228 14th lowest of 15 · 168% of median 876 135 122.0
2014 471 6th lowest of 15 · 64% of median — 43 24.3
2015 1,007 10th lowest of 15 · 138% of median — 91 47.8
2016 1,466 15th lowest of 15 · 200% of median — 144 12.8
2017 1,045 11th lowest of 15 · 143% of median — 84 23.8
2018 257 1st lowest of 15 · 35% of median 135 16 11.8
2019 732 8th lowest of 15 · 100% of median 233 58 14.4
2020 573 7th lowest of 15 · 78% of median 1,153 60 14.4
2021 266 2nd lowest of 15 · 36% of median — 18 12.3
2022 266 2nd lowest of 15 · 36% of median — 18 12.3
2023 419 4th lowest of 15 · 57% of median — 41 11.7
2024 749 9th lowest of 15 · 102% of median — 78 16.1

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.