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WRAY HATCHERY PL

Structure dossier · WDID 6500525 · 7 · CHIEF CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 20:19 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.

Will it be 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 1955-05-10 — 86th most senior of the 112 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: STALKER LAKE (1954-06-24). Immediately behind: RIGGS N PUMPING PLANT (1974-08-01).

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. UnitsUsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
47481.38481955-05-101980-12-31 10.00.0 CFIS
50171.01987-05-132002-12-31 0.00.0 CAUG

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 2,105 AF. Its most recent year on record, 2025, came in at 1,683 AF — 80% of that, and 1st lowest of the 15 years with a recorded volume.

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 recordDays recordedPeak (cfs)
2011 2,595 15th lowest of 15 · 123% of median 341 7.2
2012 2,476 14th lowest of 15 · 118% of median 366 4.7
2013 2,373 12th lowest of 15 · 113% of median 365 4.5
2014 2,373 12th lowest of 15 · 113% of median 365 6.6
2015 2,349 11th lowest of 15 · 112% of median 365 5.6
2016 2,301 10th lowest of 15 · 109% of median 366 8.5
2017 2,126 9th lowest of 15 · 101% of median 365 5.7
2018 2,078 7th lowest of 15 · 99% of median 365 5.0
2019 2,030 3rd lowest of 15 · 96% of median 365 4.4
2020 2,070 5th lowest of 15 · 98% of median 366 8.8
2021 2,105 8th lowest of 15 · 100% of median 365 7.9
2022 1,929 2nd lowest of 15 · 92% of median 365 4.6
2023 2,057 4th lowest of 15 · 98% of median 365 4.5
2024 2,070 5th lowest of 15 · 98% of median 366 7.1
2025 1,683 1st lowest of 15 · 80% of median 304 5.6

Call-derived yield: senior right divertible 6.1% of a median season / 0.0% dry-year.

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.