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WESTLAND PIPELINE NO. 1
Structure dossier · WDID 5802789 · 7 · YAMPA RIVER · DWR record
Where this page's figures come from
Generated 2026-08-27 22:28 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 2006-07-07 — 2712th most senior of the 3097 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: GYPSUM SPRING POND #1 (2006-04-01). Immediately behind: WESTLAND POND NO. 2 (2006-07-07).
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 |
|---|---|---|---|---|---|---|---|
| 57166.0 | 2006-07-07 | 2006-12-31 | 0.5 | 0.0 | C | IRRRECFISSTKAUG | |
| 58422.0 | 2009-12-14 | 2006-12-31 | 0.5 | 0.0 | C | IRRRECFISSTKAUG |
Legal record & documents
5 decreed actions on record across
2 court cases:
10CW0075, 06CW0050.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
10CW0075 | 4 | 2006-12-31 | S |
06CW0050 | 1 | 2006-12-31 | 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 12 years on record)
In a median year this structure has a recorded diversion of 46 AF. Its most recent year on record, 2025, came in at 11 AF — 24% of that, and 1st lowest of the 12 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) |
|---|---|---|---|---|
| 2014 | 669 | 12th lowest of 12 · 1454% of median | 177 | 2.7 |
| 2015 | 44 | 6th lowest of 12 · 96% of median | 100 | 0.4 |
| 2016 | 130 | 10th lowest of 12 · 283% of median | 133 | 0.7 |
| 2017 | 26 | 3rd lowest of 12 · 56% of median | 118 | 0.2 |
| 2018 | 41 | 5th lowest of 12 · 89% of median | 79 | 0.3 |
| 2019 | 134 | 11th lowest of 12 · 291% of median | 73 | 0.9 |
| 2020 | 65 | 8th lowest of 12 · 141% of median | 84 | 0.9 |
| 2021 | 67 | 9th lowest of 12 · 146% of median | 168 | 0.3 |
| 2022 | 22 | 2nd lowest of 12 · 48% of median | 98 | 0.2 |
| 2023 | 32 | 4th lowest of 12 · 70% of median | 90 | 0.2 |
| 2024 | 48 | 7th lowest of 12 · 104% of median | 113 | 0.5 |
| 2025 | 11 | 1st lowest of 12 · 24% of median | 87 | 0.1 |
Trends for this structure
Recorded use shows no clear trend over its last 12 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 | 1320 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | patchy | 54% of the irrigation seasons in 2014-2025 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.