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PURDY DITCH
Structure dossier · WDID 3900643 · 1 · PARACHUTE CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 21:05 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.
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: 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 1890-04-05 — 122nd most senior of the 1758 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: GRASS VALLEY RESERVOIR (1891-04-01). Immediately behind: JANGLE DITCH (1891-11-12).
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. | Units | UsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on. | Case |
|---|---|---|---|---|---|---|---|
| 15799.14705 | 1890-04-05 | 1893-04-08 | 1.5 | 0.0 | C | IRR | 144B |
| 31031.27818 | 1926-03-01 | 1937-01-04 | 4.65 | 0.0 | C | IRR | 207K |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 231 AF. Its most recent year on record, 2024, came in at 0 AF — 0% of that, and 1st 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) |
|---|---|---|---|---|
| 2006 | 1,087 | 15th lowest of 15 · 471% of median | 164 | 4.5 |
| 2007 | 674 | 13th lowest of 15 · 292% of median | 184 | 2.3 |
| 2008 | 683 | 14th lowest of 15 · 296% of median | 143 | 3.4 |
| 2011 | 307 | 10th lowest of 15 · 133% of median | 91 | 6.5 |
| 2012 | 225 | 7th lowest of 15 · 97% of median | 124 | 3.1 |
| 2013 | 415 | 11th lowest of 15 · 180% of median | 131 | 3.1 |
| 2014 | 231 | 8th lowest of 15 · 100% of median | 94 | 3.6 |
| 2015 | 104 | 4th lowest of 15 · 45% of median | 38 | 1.9 |
| 2016 | 224 | 6th lowest of 15 · 97% of median | 93 | 1.6 |
| 2017 | 279 | 9th lowest of 15 · 121% of median | 110 | 1.6 |
| 2018 | 515 | 12th lowest of 15 · 223% of median | 134 | 3.6 |
| 2019 | 204 | 5th lowest of 15 · 88% of median | 99 | 1.5 |
| 2020 | 43 | 3rd lowest of 15 · 19% of median | 90 | 0.3 |
| 2021 | 0 | 1st lowest of 15 · 0% of median | 8 | 0.0 |
| 2024 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
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.