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COX PUMP NO 1
Structure dossier · WDID 4301272 · 8 · WHITE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 20:40 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — 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 1886-06-01 — 600th most senior of the 3293 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: KENNEY PUMP NO 1 (1885-04-01). Immediately behind: REIGAN PUMP NO 1 (1886-06-01).
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 |
|---|---|---|---|---|---|---|---|
| 19502.13301 | 1886-06-01 | 1903-10-06 | 3.15 | 0.0 | C | IRR | 140 |
| 32172.19783 | 1904-03-01 | 1942-05-26 | 3.4125 | 0.0 | C | IRR | 411 |
| 32172.19792 | 1904-03-10 | 1942-05-26 | 10.7625 | 0.0 | C | IRR | 412 |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 754 AF. Its most recent year on record, 2025, came in at 943 AF — 125% of that, and 11th 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 | 869 | 9th lowest of 15 · 115% of median | 157 | 3.0 |
| 2007 | 946 | 12th lowest of 15 · 126% of median | 169 | 3.0 |
| 2008 | 661 | 6th lowest of 15 · 88% of median | 121 | 3.0 |
| 2009 | 1,464 | 15th lowest of 15 · 194% of median | 130 | 6.0 |
| 2010 | 1,129 | 13th lowest of 15 · 150% of median | 119 | 5.3 |
| 2011 | 405 | 3rd lowest of 15 · 54% of median | 41 | 6.0 |
| 2012 | 936 | 10th lowest of 15 · 124% of median | 106 | 6.0 |
| 2013 | 690 | 7th lowest of 15 · 92% of median | 57 | 8.0 |
| 2015 | 0 | 1st lowest of 15 · 0% of median | 2 | 0.0 |
| 2016 | 1,445 | 14th lowest of 15 · 192% of median | 139 | 5.3 |
| 2021 | 557 | 5th lowest of 15 · 74% of median | 92 | 3.1 |
| 2022 | 352 | 2nd lowest of 15 · 47% of median | 114 | 1.7 |
| 2023 | 461 | 4th lowest of 15 · 61% of median | 59 | 4.9 |
| 2024 | 754 | 8th lowest of 15 · 100% of median | 105 | 4.0 |
| 2025 | 943 | 11th lowest of 15 · 125% of median | 99 | 5.3 |
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.