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PIONEER SOUTH DITCH
Structure dossier · WDID 1201083 · 1 · TALLAHASSEE CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 20:31 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 1879-05-10 — 241st most senior of the 1967 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: MOSIER DITCH (1878-12-30). Immediately behind: GARDNER DITCH NO 3 (1879-05-31).
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. | Units | UsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on. | Case |
|---|---|---|---|---|---|---|---|
| 10722.0 | 1879-05-10 | 1894-02-03 | 1.0 | 0.0 | C | IRR | 213 |
Recorded use (last 8 years on record)
In a median year this structure has a recorded diversion of 25 AF. Its most recent year on record, 2025, came in at 39 AF — 156% of that, and 6th lowest of the 8 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) |
|---|---|---|---|---|
| 2018 | 0 | 1st lowest of 8 · 0% of median | 1 | 0.0 |
| 2019 | 20 | 3rd lowest of 8 · 80% of median | 49 | 0.3 |
| 2020 | 0 | 1st lowest of 8 · 0% of median | 2 | 0.0 |
| 2021 | 24 | 4th lowest of 8 · 96% of median | 41 | 0.7 |
| 2022 | 44 | 7th lowest of 8 · 176% of median | 47 | 0.9 |
| 2023 | 26 | 5th lowest of 8 · 104% of median | 46 | 0.4 |
| 2024 | 70 | 8th lowest of 8 · 280% of median | 83 | 0.5 |
| 2025 | 39 | 6th lowest of 8 · 156% of median | 57 | 0.6 |
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.