← My Water  ·  Print / save as PDF  · 

 ·  every download of this record carries its certificate id

WESTMINSTER AUG W-8743

Structure dossier · WDID 0702502 · AUGMENTATION/REPLACEMENT PLAN · UNDEFINED · DWR record · probably WESTMINSTER CITY OF’s (matched on DWR’s contact or an EPA intake name; verify below)

Source DWR administrative record · verify at DWR structure ↗ Source DWR administrative record · verify at DWR diversion records ↗ Source Our computation, scored against a reference · scored against DWR's call analysis, see /methods

Where this page's figures come from

Generated 2026-09-13 03:42 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (4fd06cb) — every figure regenerates from this named code version and data image.

In short

In a median year over its last 5 recorded years it diverts 8,071 acre-feet.

Assembled from the figures on this page — every number above is checked against them before it is shown (2 checked). The detail, with its method, is in the cards below.

Download this structure

Everything on this page as data you can work with — and a README that makes it citable: the HydroBase snapshot it was built from, the build commit, what every column means, the method behind each derived figure, and that method's stated limits.

⇩ Full record (.zip) Print / save as PDF

Or one table at a time: rights.csv · annual_use.csv · curtailment_now.csv · court_cases.csv · co_parties.csv · call_climatology.csv

What is in the bundle
  • rights.csv — every decreed right, most senior first, with admin numbers, dates, amounts, uses and case numbers.
  • annual_use.csv — recorded diversion by year, with releases accounted separately.
  • curtailment_now.csv — each right's current priority status and how often it was out across analog years.
  • court_cases.csv — the cases attached to its rights.
  • co_parties.csv — the other structures that were parties to those cases. Not available anywhere else.
  • call_climatology.csv — how often each right has been out of priority by week of season, with confidence intervals and the seasons the record could actually judge.
  • README.txt — provenance, methods, limits, disclaimer, and links back to DWR's own records for verification.

Where it sits

Location as DWR records it (administrative). Faint dots are the neighbouring water; click any to open it.

Which of its rights are out of priority?

Not computable for this structure: no decreed right on file, so there is no priority to test.

Recorded use (last 12 years on record)

Years far under the decreed amount? That gap has a name — paper water vs. wet water, explained on this structure.

In a median year this structure has a recorded diversion of 8,071 AF. Its most recent year on record, 1985, came in at 8,071 AF — 100% of that, and 3rd lowest of the 5 years with a recorded volume.

This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.

YearDiverted (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 recordReleased (AF)Days recordedPeak (cfs)
1980 8,840 5th lowest of 5 · 110% of median 163 82.5
1981 8,721 4th lowest of 5 · 108% of median 206 88.3
1982 no recorded volume 140 0
1983 5,433 2nd lowest of 5 · 67% of median 2,385 122 70.8
1984 4,480 1st lowest of 5 · 56% of median 3,136 142 33.0
1985 8,071 3rd lowest of 5 · 100% of median 2,638 207 83.8
1986 no recorded volume 4,542 0
1987 no recorded volume 1,507 0
1991 no recorded volume 39 0
1992 no recorded volume 3,778 0
1993 no recorded volume 919 0
1994 no recorded volume 3,864 0

How good is our record of it?

Grade C (5/10 points) — the components below are the finding; the letter alone is not.

The rubric, component by component
CheckStateDetail
identity complete name, type, and water source all on file
decreed rights absent no water rights cached for this WDID
diversion record present 840 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 15% of the irrigation seasons in 1980-2005 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.

Hydrohistorian is free, with no ads — one server and a lot of public records. If it earns its keep, you can help keep it running.