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RAFTOPOULOS LSR PUMP
Structure dossier · WDID 5501081 · 8 · LITTLE SNAKE RIVER · DWR record
Where this page's figures come from
Generated 2026-08-28 00:42 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 1924-06-01 — 20th most senior of the 477 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: NINE MILE IRR DITCH (1950-02-17). Immediately behind: PERUSEK SPRING NO 1 (1952-08-15).
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 |
|---|---|---|---|---|---|---|---|
| 37433.2718 | 1924-06-01 | 1964-06-23 | 69.2 | 0.0 | A | IRRINDDOMSTK | 13A |
| 37433.2718 | 1924-06-01 | 1964-06-23 | 4.0 | 0.0 | C | IRRINDDOMSTK | 13A |
| 53063.0 | 1995-04-13 | 1995-12-31 | 7.8 | 0.0 | C | IRRSTK |
Legal record & documents
7 decreed actions on record across
4 court cases:
95CW0050, 15CW0007, 00CW0008, 00CW0010.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
95CW0050 | 1 | 1995-12-31 | S |
15CW0007 | 3 | 1995-12-31 | S |
00CW0008 | 1 | 1995-12-31 | S |
00CW0010 | 2 | 1964-06-23 | 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 15 years on record)
In a median year this structure has a recorded diversion of 1,466 AF. Its most recent year on record, 2025, 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) |
|---|---|---|---|---|
| 2007 | 2,212 | 12th lowest of 15 · 151% of median | 130 | 8.9 |
| 2008 | 114 | 5th lowest of 15 · 8% of median | 148 | 0.5 |
| 2009 | 2,105 | 11th lowest of 15 · 144% of median | 122 | 8.9 |
| 2010 | 3,094 | 14th lowest of 15 · 211% of median | 168 | 10.0 |
| 2011 | 3,176 | 15th lowest of 15 · 217% of median | 166 | 12.7 |
| 2012 | 2,311 | 13th lowest of 15 · 158% of median | 169 | 10.0 |
| 2013 | 1,466 | 8th lowest of 15 · 100% of median | 157 | 5.1 |
| 2014 | 2,000 | 10th lowest of 15 · 136% of median | 159 | 10.0 |
| 2015 | 1,945 | 9th lowest of 15 · 133% of median | 203 | 5.4 |
| 2016 | 1,209 | 7th lowest of 15 · 82% of median | 129 | 5.5 |
| 2020 | 1,085 | 6th lowest of 15 · 74% of median | 119 | 5.7 |
| 2021 | 0 | 1st lowest of 15 · 0% of median | 12 | 0.0 |
| 2022 | 0 | 1st lowest of 15 · 0% of median | 5 | 0.0 |
| 2023 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2025 | 0 | 1st lowest of 15 · 0% of median | 2 | 0.0 |
Trends for this structure
Recorded use is falling over its last 15 recorded years (-153 AF/yr, Mann-Kendall p=0.002).
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 | 3 right(s), seniority decoded |
| diversion record | present | 3148 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 51% of the irrigation seasons in 1996-2025 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.