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GUANELLA RESERVOIR
Structure dossier · WDID 0704030 · RESERVOIR · WEST FORK CLEAR CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 23:00 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (4ab2507) — 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.
Current administration
● Fully called out — call at SWADLEY LONGAN DITCH (RALSTON CREEK, priority 1861-04-09).
● Fully called out — call at CLEAR CR PLATTE RIVER D (CLEAR CREEK, priority 1861-11-01).
● Junior rights called out — call at FARMERS INDEPENDENT DITCH (SOUTH PLATTE RIVER, priority 1865-11-20).
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 1863-04-17 — 59th most senior of the 1815 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: LOWER URAD RES (1863-04-17). Immediately behind: 0704031 (1863-04-17).
Decreed rights (13)
| 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 |
|---|---|---|---|---|---|---|---|
| 4855.0 | 1863-04-17 | 1884-10-04 | 0.0 | 0.0 | C | STOMUNAUG | |
| 6628.0 | 1868-02-23 | 1884-10-04 | 0.0 | 0.0 | C | STOMUNAUG | |
| 7030.0 | 1869-03-31 | 1884-10-04 | 0.0 | 0.0 | C | STOMUNAUG | |
| 7773.0 | 1871-04-13 | 1884-10-04 | 0.0 | 0.0 | C | STOMUNAUG | |
| 19055.0 | 1902-03-04 | 1936-05-13 | 0.0 | 0.0 | A | IRRMUNCOMINDRECFISFIRDOMSTKAUG | |
| 48212.46545 | 1977-06-08 | 1982-12-31 | 2325.0 | 0.0 | A | IRRMUNCOMINDRECFISDOMOTH | |
| 53325.5013 | 1987-04-02 | 1996-12-31 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISFIRDOMSTKAUG | |
| 55149.0 | 2000-12-28 | 2002-12-31 | 0.0 | 0.0 | C | IRRMUNCOMINDRECFISDOMOTH | |
| 56183.0 | 2003-10-28 | 2003-12-31 | 0.0 | 0.0 | C | AUG | |
| 56434.0 | 2004-07-05 | 2004-12-31 | 0.0 | 0.0 | C | COMFIRSNO | |
| 57023.0 | 2006-02-14 | 2005-12-31 | 0.0 | 0.0 | C | AUGALL | |
| 61726.61505 | 2018-05-24 | 2019-12-31 | 0.0 | 0.0 | A | AUG | |
| 61726.61505 | 2018-05-24 | 2019-12-31 | 0.0 | 0.0 | C | AUG |
Legal record & documents
31 decreed actions on record across
13 court cases:
19CW3255, 20CW3082, 05CW0302, 04CW0323, 12CW0127, 03CW0361, 02CW0379, 96CW1117, 05CW0154, 82CW0469 and 3 more below.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
19CW3255 | 1 | 2019-12-31 | S |
20CW3082 | 1 | 2005-12-31 | S |
05CW0302 | 1 | 2005-12-31 | S |
04CW0323 | 3 | 2004-12-31 | S |
12CW0127 | 2 | 2003-12-31 | S |
03CW0361 | 4 | 2003-12-31 | S |
02CW0379 | 1 | 2002-12-31 | O |
96CW1117 | 6 | 1996-12-31 | S |
05CW0154 | 3 | 1996-12-31 | S |
82CW0469 | 1 | 1982-12-31 | S |
17CW3070 | 1 | 1982-12-31 | S |
10CW0078 | 3 | 1982-12-31 | S |
94CW0087 | 4 | 1884-10-04 | O |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 1,569 AF. Its most recent year on record, 2025, came in at 39 AF — 2% of that, and 1st 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.
| 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) |
|---|---|---|---|---|---|
| 2011 | 232 | 3rd lowest of 15 · 15% of median | 86 | 61 | 2.0 |
| 2012 | 654 | 5th lowest of 15 · 42% of median | 1,109 | 142 | 6.2 |
| 2013 | 63 | 2nd lowest of 15 · 4% of median | 162 | 37 | 2.7 |
| 2014 | 1,099 | 7th lowest of 15 · 70% of median | 3,198 | 203 | 13.4 |
| 2015 | 1,983 | 11th lowest of 15 · 126% of median | 2,710 | 336 | 14.7 |
| 2016 | 2,216 | 12th lowest of 15 · 141% of median | 4,208 | 366 | 16.8 |
| 2017 | 2,217 | 13th lowest of 15 · 141% of median | 4,576 | 365 | 14.2 |
| 2018 | 2,582 | 14th lowest of 15 · 165% of median | 1,817 | 365 | 12.7 |
| 2019 | 4,380 | 15th lowest of 15 · 279% of median | 328 | 365 | 31.0 |
| 2020 | 1,668 | 9th lowest of 15 · 106% of median | 825 | 366 | 14.0 |
| 2021 | 1,842 | 10th lowest of 15 · 117% of median | 4,588 | 347 | 4.7 |
| 2022 | 1,569 | 8th lowest of 15 · 100% of median | 6,639 | 304 | 24.1 |
| 2023 | 345 | 4th lowest of 15 · 22% of median | 4,634 | 61 | 3.0 |
| 2024 | 750 | 6th lowest of 15 · 48% of median | 4,904 | 306 | 6.4 |
| 2025 | 39 | 1st lowest of 15 · 2% of median | 2,630 | 62 | 4.0 |
Trends for this structure
Recorded use shows no clear trend over its last 15 recorded years — which is itself worth knowing.
How good is our record of it?
Grade A (9/10 points) — the components below are the finding; the letter alone is not.
The rubric, component by component
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 13 right(s), seniority decoded |
| diversion record | present | 5528 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 100% of the irrigation seasons in 2004-2025 carry measured days |
| published-record stability | stable | no upstream revisions recorded against this structure |
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.