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MAES D
Structure dossier · WDID 2200590 · 1 · RIO SAN ANTONIO · DWR record
Where this page's figures come from
Generated 2026-08-28 01:25 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (2deb1d7) — 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 1887-08-27 — 152nd most senior of the 1764 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: FLORIDA D (1887-08-27). Immediately behind: WILLIAM JACKSON D (1887-11-01).
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 |
|---|---|---|---|---|---|---|---|
| 13753.0 | 1887-08-27 | 1890-10-03 | 0.0 | 0.0 | C | IRR | 116 |
| 21607.0 | 1909-02-27 | 1914-01-14 | 1.075 | 0.0 | C | IRR | 180 |
Legal record & documents
6 decreed actions on record across
4 court cases:
W3799, W3189, W3521, W3216.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W3799 | 3 | 1914-01-14 | S |
W3189 | 1 | 1914-01-14 | S |
W3521 | 1 | 1890-10-03 | S |
W3216 | 1 | 1890-10-03 | 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 136 AF. Its most recent year on record, 2025, came in at 140 AF — 103% of that, and 9th 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) |
|---|---|---|---|---|
| 2010 | 526 | 13th lowest of 15 · 387% of median | 70 | 10.0 |
| 2011 | 20 | 3rd lowest of 15 · 15% of median | 23 | 2.9 |
| 2012 | 121 | 7th lowest of 15 · 89% of median | 38 | 2.9 |
| 2013 | 35 | 5th lowest of 15 · 26% of median | 10 | 2.9 |
| 2014 | 262 | 12th lowest of 15 · 193% of median | 33 | 7.9 |
| 2015 | 186 | 10th lowest of 15 · 137% of median | 26 | 9.6 |
| 2016 | 136 | 8th lowest of 15 · 100% of median | 14 | 9.6 |
| 2017 | 535 | 14th lowest of 15 · 393% of median | 55 | 9.6 |
| 2018 | 0 | 1st lowest of 15 · 0% of median | 1 | 0.0 |
| 2019 | 255 | 11th lowest of 15 · 188% of median | 22 | 9.7 |
| 2021 | 66 | 6th lowest of 15 · 48% of median | 14 | 2.9 |
| 2022 | 23 | 4th lowest of 15 · 17% of median | 7 | 3.0 |
| 2023 | 550 | 15th lowest of 15 · 404% of median | 38 | 9.7 |
| 2024 | 12 | 2nd lowest of 15 · 9% of median | 3 | 2.9 |
| 2025 | 140 | 9th lowest of 15 · 103% of median | 14 | 9.7 |
Trends for this structure
Recorded use shows no clear trend over its last 15 recorded years — which is itself worth knowing.
How good is our record of it?
Grade B (7/10 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 | 1822 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | sparse | 11% of the irrigation seasons in 1950-2025 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.