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PETERSON & RILEY DITCH
Structure dossier · WDID 6200707 · 1 · STUMPY CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:41 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 1906-03-31 — 178th most senior of the 1980 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: BIG BLUE DITCH (1904-06-01). Immediately behind: PINE CR POND (1907-02-02).
Decreed rights (3)
| 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 |
|---|---|---|---|---|---|---|---|
| 20543.0 | 1906-03-31 | 1913-05-08 | 0.833 | 0.0 | C | IRR | 127 |
| 27585.23496 | 1914-05-01 | 1941-04-21 | 5.17 | 0.0 | C | IRR | 290 |
| 33348.22827 | 1912-07-01 | 1960-03-30 | 2.6 | 0.0 | C | IRR | 344 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 755 AF. Its most recent year on record, 2025, came in at 662 AF — 88% of that, and 6th lowest of the 15 years with a recorded volume.
| 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 | Days recorded | Peak (cfs) |
|---|---|---|---|---|
| 2011 | 599 | 5th lowest of 15 · 79% of median | 159 | 3.2 |
| 2012 | 885 | 12th lowest of 15 · 117% of median | 185 | 3.2 |
| 2013 | 755 | 8th lowest of 15 · 100% of median | 156 | 3.0 |
| 2014 | 903 | 13th lowest of 15 · 120% of median | 178 | 3.9 |
| 2015 | 681 | 7th lowest of 15 · 90% of median | 161 | 2.7 |
| 2016 | 879 | 11th lowest of 15 · 116% of median | 160 | 6.0 |
| 2017 | 1,372 | 14th lowest of 15 · 182% of median | 229 | 9.0 |
| 2018 | 836 | 10th lowest of 15 · 111% of median | 177 | 4.9 |
| 2019 | 1,444 | 15th lowest of 15 · 191% of median | 142 | 7.0 |
| 2020 | 775 | 9th lowest of 15 · 103% of median | 176 | 3.0 |
| 2021 | 207 | 1st lowest of 15 · 27% of median | 63 | 2.5 |
| 2022 | 266 | 2nd lowest of 15 · 35% of median | 61 | 3.3 |
| 2023 | 438 | 4th lowest of 15 · 58% of median | 109 | 3.9 |
| 2024 | 401 | 3rd lowest of 15 · 53% of median | 133 | 3.8 |
| 2025 | 662 | 6th lowest of 15 · 88% of median | 131 | 4.9 |
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.