Hydrohistorian
Arikaree River
Arikaree River on the ground — the ditches, wells, reservoirs and gages of Water District 65 · clicktap anything for its record
Browse this district’s ditches, gages, reservoirs, wells and springs as a list.
The Arikaree River is below normal for early August -- 65% of normal flow. 24 calls stand against it right now; the most senior right calling dates to 1860.
43% are constructed wells; 17% are tied to a decreed structure. A permit is the State Engineer's permission to drill and use a well, not a water right; most here are exempt household wells that sit outside the priority line and never needed a decree — three things called “well”. Turn on the Well permits chip on the map above to see where they are.
The Driller’s Atlas · Plate 2 A cross-section nobody surveyed
Every permitted well within a few miles of the line, drawn from the ground to its drilled depth as the driller filed it. The bright part of each stroke is the perforated casing — where the well actually takes water — coloured by the aquifer named on the permit. Nobody arranged these; the aquifers arrange themselves.
Hover or arrow through the strokes to read a well.
The same corridor as a table
| Miles from A | Wells drawn | Median depth (ft) | With a screen | Most-named aquifer | No depth filed |
|---|
Bins run from end A to end B of the line. “Most-named aquifer” is the family most often named on permits in the bin, with its count; permits naming no aquifer are the majority of the file and are not a family.
Historical
Evolution of the network
Trends
This year, in context
In the weeks around 2026-08-16 (the newest reading on file), flows at the 4 ranked gages are running at a median 84% of their own long-term norm for this window — 3 below a typical year, 1 at or above. Driest relative to its record: NORTH FORK REPUBLICAN RIVER AT COLORADO-NEBRASKA, ranking 3rd lowest of 95 years.
How this comparison is made
Each gage's mean flow over the 3 days either side of 2026-08-16, compared with the same window in every year of its own record — so a gage is only ever measured against itself, and gages with no record in the window are counted out rather than guessed.
Gage flow trend & changepoints
What counts as a trend here
Computed 2026-08-30 19:21 from 10 gage(s) with cached period-of-record data. The series is each gage's annual mean flow in cfs (years with ≥300 days of record). Mann-Kendall (trend, with the Hamed–Rao correction for serial correlation — persistence can otherwise fake significance) and Pettitt (changepoint) both require at least 8 years spanning at least 10 years of record. A gage below that reports no signal — which is not the same as “no change.” The %-per-decade figure is the same Sen slope divided by the gage's median annual flow, for comparing across streams of very different size; it is omitted for near-ephemeral channels where the median is too small to divide by honestly.
Of the 10 gages with enough record, 4 are trending down and 0 up, and 4 carry a detected shift. The clearest is Arikaree River at Haigler, Nebr., its annual mean flow changing -3.17 cfs per decade (-28.0% of its median annual flow) over 94 years (p<0.0001). The other 6 show no clear signal either way.
Drought history, cost, and the four-century context moved to the Drought tab.
| Gage | Trend | Change / decade cfs · % of median annual flow | Significance | Years | Changepoint |
|---|---|---|---|---|---|
|
▸
Arikaree River at Haigler, Nebr. ARIKHANE |
↓ decreasing | -3.17 cfs -28.0% | p<0.001 | 94 | ~1984 |
|
▸
Pioneer Ditch PIOHDGCO |
↓ decreasing | -1.18 cfs -12.2% | p<0.001 | 58 | ~1981 |
|
▸
North Fork Republican River at Colorado-Nebraska NRPSTLNE |
↓ decreasing | -2.03 cfs -5.2% | p<0.001 | 94 | ~1987 |
|
▸
Pioneer Ditch at the Colorado-Nebraska Stateline PIOSTLCO |
↓ decreasing | -0.60 cfs -8.6% | p<0.001 | 59 | ~1981 |
6 other gage(s) show no significant trend or changepoint (not shown).
How the measurement network itself changed
This basin was not always measured the way it is today — the API-era record is dense and recent, the early record sparse. 6 gage(s) and 10 structure(s) report in 2026, but structure reporting only reached half its modern level around ~1950. Every historical claim below is checked against this: long-term shifts that co-move with the growth of the network carry an explicit measurement-evolution caution, and abandonment screens whose idleness begins before the modern reporting era are flagged †.
| Decade | Gages with data (median yr) | Structures reporting (median yr) |
|---|---|---|
| 1930s | 2 | 0 |
| 1940s | 3 | 0 |
| 1950s | 3 | 9 |
| 1960s | 4 | 8 |
| 1970s | 4 | 8 |
| 1980s | 4 | 14 |
| 1990s | 4 | 14 |
| 2000s | 4 | 8 |
| 2010s | 6 | 9 |
| 2020s | 6 | 11 |
Mass-balance (network closure) trend
Structure divrec-history backfill coverage as of the last check: 0% of 0 schematic-relevant structures. 0 year(s) clear the 30% coverage gate so far -- the trend activates automatically once qualifying years span a full decade. No action needed; the nightly backfill keeps extending the record.
Reach gain/loss shifts (–)
Mass-balance kinks computed for every summer month back to (0 reach-snapshots) — which reaches gain or lose water, and how that has shifted across decades. Each shift is cross-checked against the observation record above: as more diversions became metered, "unaccounted" water shrinks mechanically, which can masquerade as a hydrologic shift.
No reach shows a statistically significant long-term gain/loss shift.
Groundwater now has its own tab: 2034 monitored well(s), water-table trends, stream corridors, and the advisory depletion screen.
Cross-gage pattern fingerprint
Not enough gages with a long enough common-coverage window yet to fingerprint shared patterns.
Data provenance & quality
Where these numbers come from and how far they can be trusted. Grade C (3/6 points) — the components below are the finding; the letter alone is not. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (imported 2026-08-19) for history, plus the CDSS REST API for current conditions.
| Check | State | What was measured |
|---|---|---|
| gage freshness | stale | newest gage reading is 14 day(s) old (target 7) |
| diversion record | expected-lag | newest diversion record is 304 day(s) old (DWR publishes ~1 year in arrears) |
| structure coverage | sparse | 0% of schematic structures have data |
Independent check: PASS — 100.0000% agreement across 146,030 stored values re-checked against DWR's authoritative record (HydroBase_CO_20260707), over 20 structures. 0 disagreement(s) beyond a 0.01 cfs tolerance. Checked 2026-08-19; a rotating sample covers the whole basin across successive runs, and the structures this report cites are checked every time.
Federal cross-check: PASS — 99.88% day-level agreement with USGS's own published records for the same gages, across 3 co-listed station(s) and 75,130 overlapping days (within max(2%, 0.5 cfs) daily). Pre-1950 records at some gages carry known between-agency day-stamp and transcription differences — scored at each year's best ±1-day alignment; residual disagreement is real historical divergence, flagged for review.
10 gage(s) / 147,171 daily values (1931-03-18–2026-08-16); 39 structure(s) with diversion records; 112 with decreed rights. Methodology has not yet had independent expert review — treat every figure as an advisory screen, not an administrative or legal conclusion.
Groundwater
28,885 water-level measurements across 2034 monitored well(s) — 3 alluvial, 2029 bedrock — plus 0 administered well(s) reporting metered pumping.
What is being counted
Observation wells and pumping wells are different populations and are never conflated: water levels come from monitored observation wells, and metered pumping comes from administered wells reporting through diversion records. Click any well to chart its own record.
Well map
3D aquifer x-ray
Every aquifer unit as its own head surface, animated through time.
How the surfaces are built, and what they are not
Alluvial water table on top, Denver Basin members (Dawson, Denver, Arapahoe, Laramie–Fox Hills) stacked beneath where measured, interpolated from measured water levels. Units are never mixed; a surface exists only inside its own unit's well coverage, with no extrapolation; thin epochs are suppressed and say why. Vertical scale is exaggerated for readability and z is head elevation in feet. These are measured heads, not a calibrated groundwater model.
Water-table trends
Of 459 well(s) with enough record for a trend test: 347 declining, 44 rising.
| Fastest-declining wells | Setting | ft / decade | Span | p |
|---|---|---|---|---|
| ▸ COLO NATIONAL BANK | bedrock | -28.72 | 41 yr | 0.0 |
| ▸ WARD, ALFRED | bedrock | -16.92 | 47 yr | 0.0 |
| ▸ NHP-FR-041 KRAMER | bedrock | -16.76 | 51 yr | 0.0 |
| ▸ NHP-WY-019 BEAUPREZ, E. | bedrock | -16.5 | 57 yr | 0.0 |
| ▸ NHP-WY-003 KOENIG, ROGER | bedrock | -16.44 | 58 yr | 0.0 |
| ▸ NHP-WY-001 HAHN, RODNEY | bedrock | -15.8 | 70 yr | 0.0 |
| ▸ NHP-WY-013 TRAUTMAN, ED | bedrock | -15.8 | 59 yr | 0.0 |
| ▸ NHP-SH-038 ORTNER, T. | bedrock | -15.75 | 50 yr | 0.0 |
Wells labeled by administrative world before anything else is said about them: tributary alluvium participates in the priority system; designated-basin and Denver Basin bedrock aquifers are governed differently and are excluded from stream-connection reasoning. Read bedrock declines differently too: deep bedrock aquifers recharge negligibly on human timescales, so a falling bedrock level is storage mining — effectively permanent — not a drought response that a wet year undoes. All screens advisory.
Drought
Right now
This is the 62nd-driest week 33 in 95 years of record at ARIKAREE RIVER AT HAIGLER, NEBR. (as of 2026-08-10; this week’s flow sits at the 65th percentile for the date). On this week’s US Drought Monitor, Yuma County is 83% in D0 abnormally dry drought (2026-09-01). The law agrees: the most senior active call leaves 0% of this district’s decreed flow rights junior to the calling right this week.
Every year since 1932, week by week
Each thin row is a year at ARIKAREE RIVER AT HAIGLER, NEBR.; each cell is one week’s flow ranked against the same calendar week of every other year — warm means dry for the date, blue wet, so seasonality cancels and droughts appear as warm bands. Gaps are missing record, never a dry river. Click a year to reconstruct it on the Historical tab.
The Drought Monitor’s view since 2000
Mean share of area in each class across Yuma county — the counties this district’s gages sit in, which overlap the district imperfectly. The Drought Monitor weighs soils, vegetation and local reports; it is CONTEXT beside the river’s own record above, not the water-rights picture.
The law’s own drought gauge
When water runs short, administration answers: calls reach further back in time, and more decreed rights go junior to the calling right. This is that response, weekly since 2007 — the share of this district’s decreed flow rights junior to the most senior active call. Watch it spike in the named droughts below, and linger after the river recovers.
Computed from DWR’s call record (7 calls touching this district) against the district’s rights index. Scoping is deliberately coarse — a call’s own district, or districts named in its comments — and this is administration’s RESPONSE, not a per-structure verdict (each dossier’s curtailment card does that, with stream miles). A deepening call can also reflect growing demand, not only shrinking supply.
This basin’s droughts, by its own record
| Drought | Span | Weeks | Trough percentile | Recovery |
|---|---|---|---|---|
| unnamed dry spell | 2026-01-26 → 2026-08-10 | 28 | 11th (2026-04-06) | not yet |
| unnamed dry spell | 2024-12-30 → 2025-09-29 | 39 | 11th (2025-04-21) | not yet |
| unnamed dry spell | 2024-01-15 → 2024-10-28 | 41 | 10th (2024-04-22) | not yet |
| the 2020-22 drought | 2022-01-03 → 2023-10-09 | 92 | 10th (2023-04-24) | not yet |
| the 2020-22 drought | 2021-02-01 → 2021-10-11 | 36 | 11th (2021-04-19) | not yet |
| the 2020-22 drought | 2020-01-13 → 2020-10-19 | 40 | 10th (2020-04-20) | not yet |
| the 2018 drought | 2018-12-17 → 2019-10-21 | 44 | 11th (2019-04-15) | not yet |
| the 2012-13 drought | 2011-12-12 → 2018-11-26 | 363 | 4th (2014-10-13) | not yet |
| the 2012-13 drought | 2011-01-10 → 2011-10-03 | 38 | 22nd (2011-05-16) | not yet |
| unnamed dry spell | 2009-01-19 → 2010-05-24 | 70 | 17th (2009-05-18) | not yet |
| the 2002 drought | 2001-05-07 → 2008-09-22 | 385 | 6th (2002-10-07) | not yet |
Detected mechanically: the 26-week smoothed percentile below the 30th for at least 20 weeks; recovered on regaining the 50th. The knobs are stated because the episode list depends on them — a different reasonable choice merges or splits episodes at the edges. Names are attached where an episode overlaps a drought Colorado already talks about.
What drought has cost here
Since 1991, federal crop insurance has paid $74,906,059 in drought-caused claims across Yuma county — 22.5% of all insured crop losses there. The worst year was 2022 ($19,143,472).
USDA crop-insurance indemnities where the recorded cause of loss is drought, summed over the counties this district's gages sit in. Counties overlap water districts imperfectly, and insured-crop claims are a floor on drought damage, not a total. Source: USDA RMA cause-of-loss files.
When this basin claimed its water
Every bar is a year’s new appropriations (72 rights across 95 years of shared record), colored by that year’s wetness from the barcode above. Here the correlation is +0.07 — essentially no wet-dry pattern; here, law and settlement set the pace, not the weather. Across the state both behaviors exist: ephemeral southwest basins file after wet demonstrations, transbasin-source basins under drought — and the biggest statewide filing waves sat in the 1950s drought and after 2002, not in the wet 1980s–90s.
Appropriation dates are the CLAIMED initiation of a right, not the courthouse filing date; the record is survivor-biased (abandoned claims are absent, so failed dry-era scrambles are undercounted); and the big 1960s and 2000s spikes sit on legal events — the pre-1969-Act adjudication era and 2000s legislation — not on weather. A correlation here is a description, never a cause.
New to how a dry winter becomes a call on the river? Anatomy of a drought walks the chain in four minutes — snow to rivers to reservoirs to calls to the water table.
Legal
Decreed rights on this network run from 1887-06-01 to 2012-02-23. Of the 20 structures with a yield estimate, the median one’s senior right was in priority 23% of a median irrigation season and 0% in a dry one. 1 abandonment screen and 6 compliance flags are listed below as leads for review — a screen is not an abandonment and a flag is not a violation.
Rights on file: 133 across 112 structure(s); 0 structure(s) carry 0 court-case references. Advisory reading aids on public DWR data — not administrative or legal conclusions.
Is the river getting harder to divert from?
Over 1951–2025, administration on this district has been tightening: 2 of 3 measures (days under call, calls set, seniority of the controlling call) are moving toward more administration, none the other way.
The three measures, year by year
One row per whole calendar year inside the call record's coverage (75 years); partly-covered years are omitted rather than reported as quiet. Trend is Mann-Kendall with the same significance gate as every other trend on this site. Counted from DWR's published call record, which begins in the early 2000s: earlier years are absent, not quiet. A rise in the number of calls set can also reflect how finely an administrator records one episode, which is why days under call -- insensitive to that -- is the component to read first. Advisory summary of the public record, not an administrative finding.
| Year | Days under call | Calls set | Controlling priority (median) |
|---|---|---|---|
| 2014 | 309 | 220 | 1873-06-30 |
| 2015 | 329 | 129 | 1870-06-01 |
| 2016 | 366 | 126 | 1875-06-30 |
| 2017 | 354 | 159 | 1881-02-01 |
| 2018 | 365 | 174 | 1876-05-10 |
| 2019 | 363 | 201 | 1881-02-01 |
| 2020 | 365 | 126 | 1869-04-01 |
| 2021 | 349 | 122 | 1867-04-15 |
| 2022 | 361 | 142 | 1867-04-15 |
| 2023 | 331 | 141 | 1869-04-01 |
| 2024 | 366 | 128 | 1881-02-01 |
| 2025 | 365 | 265 | 1881-02-01 |
Why diversions stopped — call-based explanations
Sustained diversion stops matched to senior administrative calls.
- CARROLL GILMORE DITCH (6500503) DWR↗ stopped 2025-05-08 (10+ days) — call at LEYNER COTTONWOOD DITCH curtailing 100% of its decreed rate [heuristic-strong]
- CARROLL GILMORE DITCH (6500503) DWR↗ stopped 2025-04-17 (9+ days) — call at TUCKER RES curtailing 100% of its decreed rate [heuristic-strong]
- PIONEER DITCH (HEAD) (6500520) DWR↗ stopped 2025-04-11 (13+ days) — call at TUCKER RES curtailing 100% of its decreed rate [heuristic-strong]
Right yield — how often could these rights actually divert?
Share of irrigation-season days each structure's rights were not called out, derived from the 22-year district-scoped call record (senior right = floor, junior right = ceiling constraint). Call-record-derived; DWR's own analysis governs where available.
| Structure | Senior priority | Senior right: median / dry yr | Junior right: median / dry yr |
|---|---|---|---|
| ROSENKRANS DITCH (6500523) DWR↗ | 1893-09-15 | 23.1% / 0.0% | 23.1% / 0.0% |
| PIONEER DITCH (HEAD) (6500520) DWR↗ | 1890-04-04 | 24.5% / 0.9% | 24.5% / 0.9% |
| PIONEER DITCH LEFT IN STREAM (6502400) DWR↗ | 1890-04-04 | 24.5% / 0.9% | 24.5% / 0.9% |
| LAIRD DITCH LEFT IN STREAM (6502403) DWR↗ | 1888-10-20 | 33.6% / 3.3% | 33.6% / 3.3% |
| WRAY HATCHERY PL (6500525) DWR↗ | 1955-05-10 | 6.1% / 0.0% | 5.6% / 0.0% |
| WRAY DITCH (6500517) DWR↗ | 1888-10-04 | 33.6% / 3.3% | 33.6% / 3.3% |
| N F REPUBLICAN MIN FLOW (6502103) DWR↗ | 1975-09-10 | 6.1% / 0.0% | 6.1% / 0.0% |
| BAR ELEVEN NO 2 DITCH IN STREAM AT HEADG (6502401) DWR↗ | 1888-04-26 | 34.8% / 3.3% | 10.9% / 0.0% |
| RUSH CREEK DITCH 2 (6500516) DWR↗ | 1912-07-04 | 8.9% / 0.0% | 8.9% / 0.0% |
| RUSH CREEK DITCH 1 (6500515) DWR↗ | 1912-07-04 | 8.9% / 0.0% | 8.9% / 0.0% |
| BAR ELEVEN NO 4 PUMP (6500556) DWR↗ | 1894-03-19 | 22.2% / 0.0% | 22.2% / 0.0% |
| O'DONNELL DITCH LEFT IN STREAM (6502402) DWR↗ | 1887-06-01 | 34.8% / 3.3% | 22.2% / 0.0% |
Abandonment radar (1 screen)
Absolute rights with 10+ years of no recorded diversions. Screens only — storage, alternate points, and plan operations can explain nonuse lawfully. And diversion REPORTING itself only reached its modern level ~1950 — idleness that begins before then may be unreported use, not nonuse (flagged † below).
- PIERCE MILLER DITCH (6500513) DWR↗ (1904-04-22, 0.5 cfs decreed): last active 1960 — 30 years idle
Compliance screens (6 advisory flags)
Screened 23 of 112 structures with rights (26 have diversion history on file). A flag is a lead for expert review — augmentation plans, exchanges, and free-river conditions can make over-decree diversions lawful and are deliberately not modeled.
- PIONEER DITCH (HEAD) (6500520) DWR↗: Observed p99 daily rate 51.8 cfs (max 140.0) exceeds total decreed absolute 35.0 cfs across 49688 recorded day(s).
- LAIRD DITCH (6500510) DWR↗: Observed p99 daily rate 14.6 cfs (max 20.0) exceeds total decreed absolute 0.2 cfs across 17102 recorded day(s).
- BAR ELEVEN NO 2 DITCH (6500500) DWR↗: Observed p99 daily rate 7.0 cfs (max 7.0) exceeds total decreed absolute 3.5 cfs across 4434 recorded day(s).
- CARROLL GILMORE DITCH (6500503) DWR↗: Observed p99 daily rate 3.5 cfs (max 7.5) exceeds total decreed absolute 3.0 cfs across 17012 recorded day(s).
- OLIVE CREEK DITCH (6500512) DWR↗: Observed p99 daily rate 3.0 cfs (max 3.0) exceeds total decreed absolute 2.0 cfs across 80 recorded day(s).
- PIERCE MILLER DITCH (6500513) DWR↗: Observed p99 daily rate 2.0 cfs (max 2.0) exceeds total decreed absolute 0.5 cfs across 1092 recorded day(s).
Seniority (top structures by decreed rate)
| Structure | Senior priority date | Rights | Decreed abs (cfs) | Decreed abs (AF) | Conditional? |
|---|---|---|---|---|---|
| ROSENKRANS DITCH (6500523) DWR↗ | 1893-09-15 | 1 | 40.0 | 0 | — |
| PIONEER DITCH (HEAD) (6500520) DWR↗ | 1890-04-04 | 1 | 35.0 | 0 | — |
| PIONEER DITCH LEFT IN STREAM (6502400) DWR↗ | 1890-04-04 | 1 | 15.0 | 0 | — |
| LAIRD DITCH LEFT IN STREAM (6502403) DWR↗ | 1888-10-20 | 1 | 11.8 | 0 | — |
| WRAY DITCH (6500517) DWR↗ | 1888-10-04 | 1 | 10.0 | 0 | — |
| WRAY HATCHERY PL (6500525) DWR↗ | 1955-05-10 | 2 | 10.0 | 0 | — |
| N F REPUBLICAN MIN FLOW (6502103) DWR↗ | 1975-09-10 | 1 | 9.0 | 0 | — |
| BAR ELEVEN NO 2 DITCH IN STREAM AT HEADG (6502401) DWR↗ | 1888-04-26 | 2 | 7.0 | 0 | — |
| RUSH CREEK DITCH 1 (6500515) DWR↗ | 1912-07-04 | 1 | 6.0 | 0 | — |
| RUSH CREEK DITCH 2 (6500516) DWR↗ | 1912-07-04 | 1 | 6.0 | 0 | — |
| BAR ELEVEN NO 4 PUMP (6500556) DWR↗ | 1894-03-19 | 1 | 6.0 | 0 | — |
| O'DONNELL DITCH LEFT IN STREAM (6502402) DWR↗ | 1887-06-01 | 2 | 6.0 | 0 | — |
| WILLOW CR RANCH 6-19630 (6505012) DWR↗ | 1893-09-15 | 2 | 4.4 | 0 | — |
| SHIELDS PORTABLE PUMP 1 (6500531) DWR↗ | 1912-07-04 | 1 | 4.0 | 0 | — |
| WILSON RIVER PUMP (6500553) DWR↗ | 1888-10-20 | 2 | 4.0 | 0 | — |
No inventory or legal-document changes detected since the daily watch began.
Water-court filings this month (division-wide)
16 applications in the 2026-07 resume for this basin's division — new rights, changes, augmentation plans — from the water clerk's statutory monthly notice (C.R.S. 37-92-302), the earliest public signal of a new claim. Filings are division-wide, not district-filtered: check the county column. Full resume PDF at the Judicial Branch →
Anyone affected may file a statement of opposition until 2026-09-30 (25 days left). C.R.S. 37-92-302(3): due by the last day of the second month following the filing month — computed, not legal advice; confirm with the water clerk.
All 16 filings, with excerpts
| Case | What it asks | County | Excerpt |
|---|---|---|---|
2026CW3054
|
new underground right | — | CASE NUMBER 2026CW3054 BRIAN ROBERT WEISSEG LIVING TRUST DATED MAY 15, 2011, AMANDA VINTON WEISSEG LIVING TRUST DATED DECEMBER 10, 2014 , c/o Brian Robert Weisseg and Amanda Vinton Weisseg, c/o John P. Justus, CURTIS, JUSTUS, & ZAHEDI, LLC, 1333 W. 120th Ave.,… |
2026CW3062
|
— | — | CASE NUMBER 2026CW3062 PRI #2, LLC (“Applicant”), 2138 Flying Horse Club Drive, Colorado Springs, Colorado 80921. Please forward all correspondence or inquiries regarding this matter to Attorneys for Applicant: Alan G. Hill; Ashley Pollock Zahedi; Nicoli R. Bo… |
2026CW3106
|
— | — | CASE NUMBER 2026CW3106 STANLEY E. KELLOGG, PO Box 1935 Grand Lake, CO 80447. Direct all pleadings and correspondence to Chris D. Cummins and Sedona E. Chavez, Monson, Cummins, Shohet & Farr, LLC, 13511 Northgate Estates Dr., Ste. 250, Colorado Springs, CO 8092… |
2026CW3107
|
— | — | CASE NUMBER 2026CW3107 Colorado Division of Parks and Wildlife - Order for Change of Venue to WD2.… |
2026CW3108
0107223 0107980 0107981 |
reasonable diligence, make absolute | — | CASE NUMBER 2026CW3108 WEITZEL LAND LLC , 28271 Road L, Brush, Colorado 80723, Lawrence Custer Grasmick Jones & Donovan LLP Attorneys for Applicant, Weitzel Land LLC Ryan M. Donovan, #44435 Regan M. O’Donnell, #62937 APPLICATION TO MAKE CONDITIONAL WATER RIGHT… |
2026CW3109
|
change of water right | — | CASE NUMBER 2026CW3109 ROBERT AND ALLISON JOHNSON, 1100 Shoreline Dr, Windsor, CO 80550, 970-581-2994. Please send all further pleadings to: Daniel K. Brown, Esq. and Whitney Phillips, Esq. Fischer, Brown, Bartlett, Larsen & Irby, P.C., 1319 E. Prospect Road, … |
2026CW3110
|
reasonable diligence | — | CASE NUMBER 20 26CW3110 (Case No. 19CW3038, 09CW279) THE CITY OF AURORA , COLORADO, a municipal corporation of the Counties of Adams, Arapahoe and Douglas acting by and through its Utility Enterprise (“Aurora" or "Applicant"). APPLICATION FOR A FINDING OF REAS… |
2026CW3111
|
— | IN WELD | CASE NUMBER 2026CW3111 CONCERNING THE APPLICATION FOR WATER RIGHTS OF THE COLORADO DIVISION OF PARKS AND WILDLIFE AND THE PARKS AND WILDLIFE COMMISSION, IN WELD COUNTY ; Colorado Division of Parks and Wildlife and the Parks and Wildlife Commission (“CPW”), 606… |
2026CW3112
0904297 |
reasonable diligence | ASONABLE DILIGENCE IN JEFFERSON | CASE NUMBER 2026CW3112 (2019CW3233, 2013CW3067, 2002CW138) APPLICATION FOR FINDING OF REASONABLE DILIGENCE IN JEFFERSON COUNTY. RED ROCKS COUNTRY CLUB c/o Richard J. Mehren, Cameron J. Abatti, Moses, Wittemyer, Harrison and Woodruff, P.C., 2595 Canyon Boulevar… |
2026CW3113
|
change of water right | ATE POINT OF DIVERSION IN WELD | CASE NUMBER 20 26CW3113 APPLICATION FOR CHANGE OF WATER RIGHT TO ADD ALTERNATE POINT OF DIVERSION IN WELD COUNTY. 1. Name and Address of Applicant . GWIP, LLC, 252 Clayton Street, Fourth Floor, Denver, Colorado 80206. Copies of all pleadings and other correspo… |
2026CW3114
|
reasonable diligence | THE | CASE NUMBER 2026CW3114 CONCERNING THE APPLICATION FOR WATER RIGHTS OF THE COUNTY OF BOULDER (SUCCESSOR TO CEMEX, INC.) APPLICATION FOR FINDING OF REASONABLE DILIGENCE IN BOULDER COUNTY . Attorneys for applicant: Andrea L. Benson, Esq., Reg. No. 33176, Gilbert … |
2026CW3115
|
plan for augmentation, new underground right | — | CASE NUMBER 2026CW3115 DORADO AND RAMIRO ROSALES , 14551 Imboden Rd, Hudson, CO 80642. James J Petrock, John D Buchanan, Hayes Poznanovic Korver LLC, 700 17 th Street, Suite 1800, Denver, CO 80202. APPLICATION FOR UNDERGROUND WATER RIGHTS FROM NONTRIBUTARY AND… |
2026CW3116
|
new underground right | — | CASE NUMBER 2026CW3116 ROBERT D HOFFMANN AND AMY LEE HOFFMANN , 4962 N State Highway 67, Sedalia, CO, 80135. Philip E. Lopez, Eric K. Trout, Fairfield and Woods, P.C., 1801 California Street, Suite 2600, Denver, CO, 80202. APPLICATION FOR UNDERGROUND WATER RIG… |
2026CW3117
|
reasonable diligence | — | CASE NUMBER 20 26CW3117 LOWER POUDRE AUGMENTATION COMPANY, THE NEW CACHE LA POUDRE IRRIGATING COMPANY, AND THE CACHE LA POUDRE RESERVOIR COMPANY, 33040 Railroad Avenue, P.O. Box 104. Lucerne, CO 80646, (970) 352-0222. Please send all further pleadings to: Bren… |
2026CW3118
|
— | DOUGLAS | CASE NUMBER 2026CW3118 ROBERT H BASTIAANS AND JANICE A YUVAN, 10440 Meadow Run, Parker, CO, 80134. Philip E. Lopez, Eric K. Trout, Fairfield and Woods, P.C., 1801 California Street, Suite 2600, Denver, CO, 80202. APPLICATION FOR AMENDMENT OF A PRIOR DECREE IN … |
2026CW8
|
new storage right | RIGHT IN CLEAR CREEK | CASE NUMBER 2026CW8 JONELLE AND JOHN PAUL HADDAD, P.O. Box 139, Dumont, CO 80436. 720 -951-1183. APPLICATION FOR ABSOLUTE/CONDITIONAL WATER STORAGE RIGHT IN CLEAR CREEK COUNTY. Date of original decree: 07-30-20 in case 20CW7, WD1. Haddad Pond fka Duke Pond loc… |
Call cascade
If a call were placed at a given seniority, which structures in this basin would be out of priority, and how much of their decreed rate would be curtailed? Computed from this basin's cached decrees.
What this does and doesn't model. Seniority arithmetic only: every right junior to the call is treated as curtailed. It does not model reach applicability — structures downstream of the calling point are not administered by it — and it applies no futile-call judgment. Read it as “who is junior to this date, and by how much,” not as a prediction of what the Division Engineer would actually order.
Pick a calling right
Real decrees from this basin, ordered by administration number — that is, by actual seniority. The years will look out of order, and that is correct: an administration number encodes the adjudication date as well as the appropriation date, so a right appropriated in 1970 can be administered ahead of one from 1950. A senior call curtails almost everything; a junior one curtails almost nothing.
Or enter an administration number directly
DWR administration numbers encode appropriation and adjudication dates; lower is more senior.
Each row shows a streamgage where the upstream walk (headwater seed ± diversions ± returns ± tributaries) disagrees with the gage reading. Possible reasons include ungaged diversions/returns, channel losses, or structures with stale telemetry.
| Stream | Gage | R-mile | Predicted (cfs) | Observed (cfs) | Δ (cfs) | Reach (mi) | Hypothesis |
|---|---|---|---|---|---|---|---|
| MAINSTEM | PIONEER DITCH AT THE COLORADO-NEBRASKA STATELINE (PIOSTLCO) | 32.3 | 14.8 | 0.0 | -14.8 | 5.9 | Unaccounted -14.8 cfs loss over 5.9 mi. Likely cause: stale/missing diversion data at WILEY PUMP 1, PIERCE MILLER DITCH. |
Ribbon width ∝ flow. Hover any diversion/return branch for its data source (live telemetry vs. annual divrec) and age — use that to judge how much to trust a given number.
| Gage ⇅ | Station ⇅ | Avg cfs Aug 10–Aug 16 ⇅ |
% Hist Median ⇅ | Rank ⇅ | Δ1wk ⇅ | Δ4wk ⇅ | Yrs ⇅ | Status ⇅ |
|---|---|---|---|---|---|---|---|---|
| RRCCPLCO | REPUBLICAN RIVER COMPACT COMPLIANCE PIPELINE NEAR LAIRD, CO | 0.0 | 0% | 0 | +0 | +0 | 13.9 | SHORT_RECORD |
| NRPSTLNE | NORTH FORK REPUBLICAN RIVER AT COLORADO-NEBRASKA | 1.9 | 19% | 0 | +1 | +0 | 93.8 | OK |
| PIOHDGCO | PIONEER DITCH | 14.8 | 72% | 1 | -1 | -2 | 59.9 | OK |
| PIOSTLCO | PIONEER DITCH AT THE COLORADO-NEBRASKA STATELINE | 13.4 | 85% | 26 | -0 | -2 | 59.9 | OK |
| ARIKHANE | ARIKAREE RIVER AT HAIGLER, NEBR. | 4.3 | 182% | 60 | +3 | +2 | 94.4 | OK |
Call details in gantt above
3 alert(s) · 1 warning(s) · 3 info. Each gage contributes at most one flag per category (its single most-severe match), so this list shouldn't multiply-count the same underlying condition.
Topology cross-check: 0 parent disagreements, 4 sizable streams not on this network (vs DWR's route framework — under review)
This flow network was built mechanically; DWR's Source Water Route Framework disagrees with it in the places below. Each row is a question a human reviewer has not yet answered — not an error verdict. Checked 0 streams, 0 agree. Know this water? Tell us →
Sizable streams DWR maps here that this network does not carry:
Chief Creek (12 mi) · Rush Creek (4 mi) · Holy Joe Creek (3 mi) · Hayes Creek (3 mi)