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PANAMA RES 1

Structure dossier · WDID 0604185 · RESERVOIR · BOULDER CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 21:21 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (96d5528) — 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: no administrative call record for this basin.

Where it sits in line

Priority 1904-05-31 — 223rd most senior of the 1867 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: 0600952 (1903-08-26). Immediately behind: ANDERSON EXTENSION DITCH (1904-11-04).

On MAINSTEM at river mile 23.3, it is 44th of 78 down the reach. Immediately upstream: NIELSEN PONDS NO 2. Immediately downstream: HOWELL DITCH.

Position on the modelled network, not a claim about whose water this is — a stream carries water from many rights at once, and diverted water returns to it.

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
20890.198741904-05-311926-06-21 4989.00.0 AIRRRECFISAUGRCHWLD
29219.01929-12-311953-09-28 4989.00.0 AIRRRECFISAUGRCHWLD

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 2,493 AF. Its most recent year on record, 2025, came in at 4,732 AF — 190% of that, and 12th 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)
2011 1,392 4th lowest of 15 · 56% of median 890 28 44.0
2012 120 1st lowest of 15 · 5% of median 1,771 7 12.1
2013 3,957 11th lowest of 15 · 159% of median 1,841 53 69.3
2014 2,493 8th lowest of 15 · 100% of median 556 29 62.8
2015 1,606 6th lowest of 15 · 64% of median 685 25 72.5
2016 2,820 9th lowest of 15 · 113% of median 864 50 49.1
2017 785 2nd lowest of 15 · 32% of median 1,778 16 57.0
2018 1,174 3rd lowest of 15 · 47% of median 1,042 48 25.2
2019 2,081 7th lowest of 15 · 84% of median 655 94 35.0
2020 7,501 15th lowest of 15 · 301% of median 1,429 207 95.0
2021 4,737 13th lowest of 15 · 190% of median 1,293 235 61.4
2022 6,852 14th lowest of 15 · 275% of median 942 311 61.5
2023 3,951 10th lowest of 15 · 158% of median 1,142 236 50.8
2024 1,449 5th lowest of 15 · 58% of median 304 29 55.9
2025 4,732 12th lowest of 15 · 190% of median 34 186 68.6

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.