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CASTLE ROCK W 204
Structure dossier · WDID 0811122 · WELL · GROUNDWATER: ARAPAHOE · DWR record
Where this page's figures come from
Generated 2026-08-27 22:11 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (0576005) — 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.
Current administration
● Fully called out — call at LITTLETON BOAT CHUTE NO 10 (SOUTH PLATTE RIVER, priority 1994-12-02).
● Fully called out — call at LAST CHANCE DITCH 2 (SOUTH PLATTE RIVER, priority 1863-12-30).
● Fully called out — call at NEVADA DITCH (SOUTH PLATTE RIVER, priority 1865-12-30).
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 1997-05-30 — 12331st most senior of the 21881 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: 0811121 (1997-05-30). Immediately behind: 0811123 (1997-05-30).
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 53841.0 | 1997-05-30 | 1997-12-31 | 0.8913 | 0.0 | C | ALL |
Legal record & documents
1 decreed actions on record across
1 court case:
97CW0168.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
97CW0168 | 1 | 1997-12-31 | O |
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 5 years on record)
In a median year this structure has a recorded diversion of 362 AF. Its most recent year on record, 2022, came in at 235 AF — 65% of that, and 2nd lowest of the 5 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) |
|---|---|---|---|---|
| 2018 | 67 | 1st lowest of 5 · 18% of median | 53 | 0.8 |
| 2019 | 410 | 5th lowest of 5 · 113% of median | 287 | 0.8 |
| 2020 | 362 | 3rd lowest of 5 · 100% of median | 266 | 0.8 |
| 2021 | 382 | 4th lowest of 5 · 106% of median | 365 | 0.8 |
| 2022 | 235 | 2nd lowest of 5 · 65% of median | 304 | 0.8 |
How good is our record of it?
Grade A (9/10 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 | 1 right(s), seniority decoded |
| diversion record | present | 1275 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 100% of the irrigation seasons in 2018-2022 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.