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RIDGES PUMPING STATION
Structure dossier · WDID 7201501 · 8 · COLORADO RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 22:45 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.
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 1964-06-02 — 859th most senior of the 2166 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: COLORADO R PUMPING PLANT (1964-06-02). Immediately behind: HAWKINS WELL NO 1 (1964-06-15).
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 |
|---|---|---|---|---|---|---|---|
| 41791.0 | 1964-06-02 | 1972-04-13 | 0.53 | 15.0 | C | IRRMUNINDDOM | 1042 |
| 45174.0 | 1973-09-06 | 1973-12-31 | 0.0 | 0.0 | C | MUNCOMINDFIRSTK |
Legal record & documents
5 decreed actions on record across
2 court cases:
W3137, 94CW0261.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W3137 | 1 | 1973-12-31 | S |
94CW0261 | 4 | 1972-04-13 | S |
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 8 years on record)
In a median year this structure has a recorded diversion of 656 AF. Its most recent year on record, 2022, came in at 630 AF — 96% of that, and 4th 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) |
|---|---|---|---|---|
| 2005 | 1,204 | 8th lowest of 8 · 183% of median | 214 | 3.3 |
| 2006 | 606 | 2nd lowest of 8 · 92% of median | 247 | 2.3 |
| 2007 | 683 | 5th lowest of 8 · 104% of median | 217 | 2.3 |
| 2014 | 1,036 | 7th lowest of 8 · 158% of median | 214 | 7.6 |
| 2015 | 463 | 1st lowest of 8 · 70% of median | 214 | 3.5 |
| 2016 | 612 | 3rd lowest of 8 · 93% of median | 214 | 2.2 |
| 2021 | 703 | 6th lowest of 8 · 107% of median | 209 | 2.8 |
| 2022 | 630 | 4th lowest of 8 · 96% of median | 249 | 2.5 |
Trends for this structure
Recorded use shows no clear trend over its last 8 recorded years — which is itself worth knowing.
How good is our record of it?
Grade B (8/10 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 | 2 right(s), seniority decoded |
| diversion record | present | 1778 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 47% of the irrigation seasons in 2005-2022 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.