Culebra Creek

Division 3 · Water District 24

Auto-mapped

Culebra Creek on the ground — the ditches, wells, reservoirs and gages of Water District 24 · clicktap anything for its record

Snowpack — no snow on the ground at 1 SNOTEL site — normal for the date; the snow year begins in October and typically peaks around April 5. Runoff outlook — Culebra Ck at San Luis : even odds of at least 2 kAF over 06-01 to 09-30 — 22% of a normal season, per NRCS, issued 2026-06-01 — the season’s final; new forecasts begin in January. Full snow & runoff picture — charts, forecast history and how the forecasts have verified →

Sites, exceedance bands and sources

SNOTEL site	Elev (ft)	SWE (in)	Median (in)	% of median	Typical peak
Culebra #2	10560	0.0	0.0	—	April 5 (14.0 in)

Culebra Ck at San Luis — 06-01 to 09-30 volume, thousand acre-feet (chance the volume is AT LEAST this):

90%	70%	50%	30%	10%	Normal
1	2	2	4	6	11

Snow-water equivalent and medians (1991–2020) from NRCS SNOTEL; seasonal volume forecasts from the NRCS National Water and Climate Center. Sites and forecast points are assigned to the district whose boundary contains them — snowpack that feeds this district can also sit in a neighboring headwater district. Toggle the Snow chip on the map above to see the sites.

Topology cross-check: 3 parent disagreements, 6 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 7 streams, 4 agree. Know this water? Tell us →

Stream	This site routes it to	DWR routes it to
San Francisco Creek	the mainstem	Ventero Creek
Cuates Creek	the mainstem	Ventero Creek
Jaroso Creek	the mainstem	Ventero Creek

Sizable streams DWR maps here that this network does not carry:

Ventero Creek (14 mi) · Puertesito Creek (6 mi) · El Valle Creek (6 mi) · Carneros Creek (5 mi) · El Rito de Aban (3 mi) · Cuchilla Alta Creek (3 mi)

Full diagnostic snapshot pending — this district's weekly-style report (system status, active calls, hydrographs, anomaly flags) is produced by the nightly rotation and appears here after its first run. The tabs above are live now.

Reconstruct conditions as of

Evolution of the network

This year, in context

In the weeks around 2026-07-06 (the newest reading on file), flows at the 15 ranked gages are running at a median 20% of their own long-term norm for this window — 13 below a typical year, 2 at or above. Driest relative to its record: VALLEJOS D 3 FOOT, ranking 1st lowest of 2 years.

How this comparison is made

Each gage's mean flow over the 3 days either side of 2026-07-06, 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 19:49 from 20 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 20 gages with enough record, 3 are trending down and 0 up, and 3 carry a detected shift. The clearest is Culebra Creek below San Luis, its annual mean flow changing -30.93 cfs per decade (-45.5% of its median annual flow) over 16 years (p=0.0014). The other 16 show no clear signal either way.

Gage	Trend	Change / decade cfs · % of median annual flow	Significance	Years	Changepoint
▸ Culebra Creek below San Luis CULBANCO	↓ decreasing	-30.93 cfs -45.5%	p=0.001	16	~1945
▸ Culebra Creek at San Luis CULSANCO	↓ decreasing	-2.28 cfs -5.3%	p=0.002	98	~1949
▸ Ventero Creek below Sanchez Reservoir VENSANCO	↓ decreasing	-3.87 cfs -30.7%	p=0.049	14	—
▸ Costilla Creek below Costilla Dam, Nm. COSBELNM	no clear trend	+2.10 cfs +12.7%	p=0.078	41	~1978

⚠️ 1 gage flagged: their records may have quietly shifted against their neighbours, so treat their trends with caution.

How drift is detected

Every gage's annual flows are compared against each neighbour's as a double-mass curve (Searcy & Hardison, USGS WSP 1541-B); a Pettitt step test looks for a break in the ratio. A gage is flagged only when the breaks AGREE across its references, and a break against an already-suspect gage is never counted against a healthy one. A double-mass break means the ratio between two gages changed, not that either gage is faulty: a new diversion, a reservoir, or an import changes that ratio exactly as a rating shift does. Screening aid for expert review, never a measurement verdict.

16 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. 17 gage(s) and 94 structure(s) report in 2026, but structure reporting only reached half its modern level around ~1952. 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)
1920s	1	0
1930s	1	0
1940s	7	0
1950s	7	48
1960s	8	56
1970s	8	61
1980s	7	64
1990s	7	66
2000s	7	70
2010s	8	80
2020s	9	93

Mass-balance (network closure) trend

Structure divrec-history backfill coverage as of the last check: 16% of 490 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 (1950–2026)

Mass-balance kinks computed for every summer month back to 1950 (108 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.

CULEBRA CREEK AT SAN LUIS, CO: reach shifted from -3 cfs to +21 cfs summer mean (more gaining, p=0.022, 26 yr) [alluvial valley: real alluvial aquifer -- a decades-long shift toward losing is the classic signature of alluvial pumping and urbanization] [measurement-evolution caution: this shift co-moves with the growth of the gage/metering network (rho=0.59) -- part of it may be unaccounted water becoming accounted, not hydrologic change]

Groundwater now has its own tab: 53 monitored well(s), water-table trends, stream corridors, and the advisory depletion screen.

Reservoirs now has its own tab: 5 reservoir(s), end-of-year storage back to 1963, click-to-chart histories.

Cross-gage pattern fingerprint

Not enough gages with a long enough common-coverage window yet to fingerprint shared patterns.

Structures most implicated by reconciliation (as of 2026-07-06)

Which structures' data absorbed the most correction when the current mass-balance snapshot was reconciled -- see the Historical tab for the full picture on any date.

ROMERO D (diversion): +24.0 cfs (100% of that reach's correction)
SAN LUIS PEOPLES D (diversion): -8.9 cfs (25% of that reach's correction)
VEGA D (diversion): -8.9 cfs (25% of that reach's correction)
SAN LUIS MILL D (diversion): -8.9 cfs (25% of that reach's correction)
ROBERT ALLEN D (diversion): -8.9 cfs (25% of that reach's correction)
ASSOCIATION D (diversion): +2.3 cfs (6% of that reach's correction)
MONDRAGON D (diversion): +2.3 cfs (6% of that reach's correction)
CULEBRA SANCHEZ CANAL VA (diversion): +2.3 cfs (6% of that reach's correction)
ABAN SANCHEZ D (diversion): +2.3 cfs (6% of that reach's correction)
CHAMA D EXT (diversion): +2.3 cfs (6% of that reach's correction)

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 55 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	16% of schematic structures have data

Independent check: PASS — 100.0000% agreement across 253,716 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 — 99.95% day-level agreement with USGS's own published records for the same gages, across 10 co-listed station(s) and 153,786 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.

20 gage(s) / 174,161 daily values (1927-04-01–2026-07-06); 107 structure(s) with diversion records; 453 with decreed rights. Methodology has not yet had independent expert review — treat every figure as an advisory screen, not an administrative or legal conclusion.

4,539 water-level measurements across 53 monitored well(s) — 8 alluvial, 7 bedrock — plus 5 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 23 well(s) with enough record for a trend test: 10 declining, 0 rising.

Fastest-declining wells	Setting	ft / decade	Span	p
▸ CB00207307CB	unknown	-15.01	18 yr	0.0
▸ CC03107431DAA	unknown	-14.0	31 yr	0.0
▸ CB00207402BBB RG92	unknown	-4.39	46 yr	0.0
▸ CB00107433DAA 01N.74W.33.422	unknown	-4.38	68 yr	0.0001
▸ CB00107415DBD	unknown	-4.07	56 yr	0.0028
▸ CB00307426CCC RG90	unknown	-3.44	46 yr	0.0
▸ CB00107427DCD	unknown	-2.92	56 yr	0.0322
▸ CB 107512AAA	unknown	-2.91	73 yr	0.0013

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.

5 reservoir(s) with 8,268 storage measurement(s), 1963–2026. Basin storage as of 2025-10-31 (the record's own end — reservoir records publish ~annually): 2,510 AF across 3 reservoir(s).

Why storage matters to the flow network

Storage change is real water the mass balance must credit — a losing reach beside a filling reservoir isn't losing water, it's banking it.

Reservoir map — how full is each vessel?

What “full” is measured against

Bubble size is proportional to a reservoir's record-high storage. Fill is its last recorded storage as a share of its surveyed capacity (USACE National Inventory of Dams) where a confident NID match exists — the tooltip names the matched dam — and as a share of its own record high otherwise. A wrong capacity would be worse than an honest record high, so only confident joins upgrade.

A dashed teal ring marks reservoirs reporting live DWR telemetry: their fill reflects yesterday's storage, is drawn as a dotted tail on charts, and is treated as provisional until the next verified HydroBase snapshot supersedes it.

A dashed red ring marks a dam under an active storage restriction from DWR's Dam Safety branch — the State Engineer has limited how much it may legally store, so a low fill can be an order, not a drought. Hazard class and inspection condition come from the same record, joined only where the dam carries this reservoir's WDID or a confident NID match — a wrong dam's restriction would be worse than none shown.

Basin storage, end of each water year

End-of-water-year totals; per-year reservoir counts shown because reporting coverage varies -- a total is only comparable to years with similar counts.

Largest reservoirs on record

Click a row to chart its full storage history, or open its dossier for rights, documents and dam-safety facts.

Reservoir	Last recorded storage (AF)	As of	Full	Dam (DWR Dam Safety)
▸ SANCHEZ RES (2403576)	2,474	2025-10-31	—	—	dossier →
▸ SALAZAR RES NO 1 (2403579)	36	2024-10-31	—	—	dossier →
▸ EASTDALE RESERVOIR NO 1 (2403577)	0	2025-10-09	—	—	dossier →
▸ EASTDALE RESERVOIR NO 2 (2403578)	0	2015-08-01	—	—	dossier →
▸ SALAZAR RES 2 (2403580)	0	2015-10-30	—	—	dossier →

Snow-water equivalent, WY2026

No snow on the ground — normal for the date; the snow year begins in October. The chart shows the full water year just ending.

SNOTEL site	Elev (ft)	SWE (in)	Median (in)	% of median	Typical peak
Culebra #2	10560	0.0	0.0	—	April 5 (14.0 in)

NRCS SNOTEL, daily. Sites are assigned to the district whose boundary contains them — the snow that feeds this district can also sit in a neighboring headwater district.

Two ways a snow year goes wrong (1980–2026)

A bad snow year here comes in two flavors (both called snow drought), and the river feels them differently. In 14 of the last 47 winters the snow never came — the pack peaked below 80% of its median. In 1 more, the snow came but left early — a near-normal peak melted out two weeks or more ahead of its usual date, sending the water down before the season needed it. This year was one of the dry ones: the pack peaked at 44% of median.

The snow never came: 1981, 1986, 1988, 1996, 1999, 2002, 2006, 2011, 2012, 2013, 2018, 2022, 2025, 2026. The snow left early: 1989.

Computed by this site from 1 SNOTEL site’ full daily records (NRCS AWDB, back to 1980). Each year is measured against each site’s own multi-decade median — not the 1991–2020 normal the chart above uses — so the 1980s grade against a fair baseline. Peak and melt-out need 85% of the season’s days on the record; thin years are dropped, not guessed. Derived from snow measurements alone — it cannot tell dry-from-warm causes apart, only what the snowpack did.

Runoff outlook — Culebra Ck at San Luis

NRCS's final issue (2026-06-01) calls it even odds that at least 2 kAF arrives over 06-01 to 09-30 — 22% of a normal season; almost certainly at least 1, probably not more than 6. Our own record at this gage shows 2 kAF so far this period (partial record: 36 of 92 days). New forecasts begin in January. How to read these numbers →

90% chance of at least	70% chance of at least	50% chance of at least	30% chance of at least	10% chance of at least	Normal	Observed
1	2	2	4	6	11	2*

How good are these forecasts here? (1950–2025)

Grading every April issue against what the river then delivered, measured at this gage’s own record — 74 seasons: the median miss of the 50% forecast is 26%, with a high bias of 4%, and the observed volume landed inside the stated 10–90% band 90% of the time (a calibrated forecast would say 80%).

Computed by this site: NRCS's archived April issues (their period as issued each year) against the observed volume in DWR’s published record; years with under 90% daily coverage are dropped, not summed. A grade of the forecast, never of the forecasters — these are hard rivers. How this point ranks among every graded Colorado forecast point →

What April snow has meant for this river (1980–2025)

Across 46 measured years, April snowpack has explained only part of this river’s season — the dots below scatter widely, so read any single year’s snow number loosely here. In warm, early-melt years the river delivered a median of 129% of a normal season, against 95% in typical years — the timing of the melt matters, not just its size.

Computed by this site: the district’s April 1 SWE (% of each SNOTEL site’s own-record median) against the observed April–July volume at this gage (% of its median season) — a fixed window every year, unlike the forecast grades above, which use each issue’s own period. The slope is fit so single wild years can’t steer it (Theil–Sen, log space); years missing 10% of their days are dropped.

Decreed rights on this network run from 1852-04-10 to 2000-05-04. Of the 20 structures with a yield estimate, the median one’s senior right was in priority 32% of a median irrigation season and 0% in a dry one. 3 abandonment screens and 48 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: 541 across 453 structure(s); 69 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 1969–2025, administration on this district has been tightening: 3 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 (57 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	61	8	1870-03-01
2015	365	373	1854-03-31
2016	366	344	1850-01-01
2017	365	307	1855-04-30
2018	365	427	1855-06-01
2019	365	547	1850-01-01
2020	366	523	1854-03-31
2021	365	533	1854-03-31
2022	365	291	1854-03-31
2023	365	136	1854-03-31
2024	366	105	1854-03-31
2025	365	117	1854-03-31

Why diversions stopped — call-based explanations

Sustained diversion stops matched to senior administrative calls.

CHOURY D (2400527) DWR↗ stopped 2025-10-19 (12+ days) — call at SANGRE CRISTO TRINCHERA curtailing 100% of its decreed rate [heuristic-strong]
CHOURY D (2400527) DWR↗ stopped 2025-09-28 (7+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
CHOURY D (2400527) DWR↗ stopped 2025-08-31 (14+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
CULEBRA EASTDALE D (2400533) DWR↗ stopped 2025-08-29 (9+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
CHOURY D (2400527) DWR↗ stopped 2025-08-08 (9+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
CULEBRA CERRITOS CANAL (2400532) DWR↗ stopped 2025-08-04 (10+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
J M J MAEZ D (2400553) DWR↗ stopped 2025-06-29 (113+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 54% of its decreed rate [heuristic-partial]
ABAN SANCHEZ D (2400502) DWR↗ stopped 2025-06-28 (103+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
ALBERT AND VIGIL D (2400509) DWR↗ stopped 2025-06-28 (125+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
ANTONIO VALDEZ D (2400512) DWR↗ stopped 2025-06-28 (118+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
ANTONIO SANCHEZ D (2400513) DWR↗ stopped 2025-06-28 (117+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
GUADALUPE SANCHEZ D (2400550) DWR↗ stopped 2025-06-28 (124+ days) — call at RIO GRANDE COMPACT - LOBATOS 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
EASTDALE 1 CNL (2400537) DWR↗	1890-04-21	11.9% / 0.0%	5.6% / 0.0%
EASTDALE 2 CNL (2400538) DWR↗	1890-04-21	11.9% / 0.0%	6.3% / 0.0%
CULEBRA EASTDALE D (2400533) DWR↗	1854-06-30	11.9% / 0.0%	6.3% / 0.0%
EASTDALE CULEBRA NO 1 D (2400619) DWR↗	1974-06-01	5.6% / 0.0%	5.6% / 0.0%
SAN ACACIO D (2400581) DWR↗	1856-04-30	64.0% / 4.2%	64.0% / 4.2%
SAN LUIS MILL D (2400618) DWR↗	1859-10-01	11.9% / 0.0%	6.3% / 0.0%
CERRO D (2400522) DWR↗	1857-11-30	58.4% / 0.0%	58.4% / 0.0%
CULEBRA CERRITOS CANAL (2400532) DWR↗	1911-09-02	6.3% / 0.0%	6.3% / 0.0%
SAN PEDRO D (2400589) DWR↗	1852-04-30	100.0% / 100.0%	11.9% / 0.0%
SAN LUIS PEOPLES D (2400586) DWR↗	1852-04-10	100.0% / 100.0%	11.9% / 0.0%
VALLEJOS D (2400594) DWR↗	1854-03-31	100.0% / 100.0%	6.3% / 0.0%
SAN FRANCISCO D (2400583) DWR↗	1860-05-31	58.4% / 0.0%	58.4% / 0.0%

Abandonment radar (3 screens)

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 ~1952 — idleness that begins before then may be unreported use, not nonuse (flagged † below).

ABUNDO MARTINEZ D (2400609) DWR↗ (1874-05-31, 1.8 cfs decreed): last active 1963 — 25 years idle
VEGA D (2400597) DWR↗ (1905-07-03, 0.7 cfs decreed): last active 1973 — 15 years idle
CERRO CNL (2400521) DWR↗ (1853-01-01, 5.5 cfs decreed): last active 1976 — 12 years idle

Compliance screens (48 advisory flags)

Screened 84 of 453 structures with rights (92 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.

CERRO CNL (2400521) DWR↗: Observed p99 daily rate 42.8 cfs (max 48.0) exceeds total decreed absolute 5.5 cfs across 710 recorded day(s).
VEGA D (2400597) DWR↗: Observed p99 daily rate 12.0 cfs (max 12.0) exceeds total decreed absolute 0.7 cfs across 730 recorded day(s).
A A SALAZAR D 1 (2400500) DWR↗: Observed p99 daily rate 10.5 cfs (max 20.0) exceeds total decreed absolute 3.0 cfs across 3191 recorded day(s).
ALFONSO DITCH (2400510) DWR↗: Observed p99 daily rate 10.0 cfs (max 10.0) exceeds total decreed absolute 3.0 cfs across 4850 recorded day(s).
QUATES D 1 (2400573) DWR↗: Observed p99 daily rate 10.0 cfs (max 27.6) exceeds total decreed absolute 2.5 cfs across 32572 recorded day(s).
QUATES D 2 (2400574) DWR↗: Observed p99 daily rate 10.0 cfs (max 30.0) exceeds total decreed absolute 1.5 cfs across 11026 recorded day(s).
GARCIA D (2400549) DWR↗: Observed p99 daily rate 6.8 cfs (max 22.0) exceeds total decreed absolute 1.0 cfs across 11148 recorded day(s).
ACEQUIA MADRE D (2400506) DWR↗: Observed p99 daily rate 6.0 cfs (max 10.5) exceeds total decreed absolute 5.0 cfs across 18230 recorded day(s).
RUMALDO GALLEGOS DITCH (2400630) DWR↗: Observed p99 daily rate 5.9 cfs (max 5.9) exceeds total decreed absolute 0.6 cfs across 516 recorded day(s).
CHOURY D (2400527) DWR↗: Observed p99 daily rate 5.7 cfs (max 8.0) exceeds total decreed absolute 3.9 cfs across 21584 recorded day(s).

Seniority (top structures by decreed rate)

Structure	Senior priority date	Rights	Decreed abs (cfs)	Decreed abs (AF)	Conditional?
EASTDALE 1 CNL (2400537) DWR↗	1890-04-21	4	610.0	0	—
EASTDALE 2 CNL (2400538) DWR↗	1890-04-21	3	290.0	0	—
CULEBRA EASTDALE D (2400533) DWR↗	1854-06-30	3	283.1	0	—
EASTDALE CULEBRA NO 1 D (2400619) DWR↗	1974-06-01	2	98.0	3468	—
SAN ACACIO D (2400581) DWR↗	1856-04-30	1	46.0	0	—
SAN LUIS MILL D (2400618) DWR↗	1859-10-01	2	45.0	0	—
CERRO D (2400522) DWR↗	1857-11-30	1	40.0	0	—
CULEBRA CERRITOS CANAL (2400532) DWR↗	1911-09-02	1	37.5	0	—
SAN PEDRO D (2400589) DWR↗	1852-04-30	2	32.7	0	—
SAN LUIS PEOPLES D (2400586) DWR↗	1852-04-10	2	24.8	0	—
VALLEJOS D (2400594) DWR↗	1854-03-31	2	18.5	0	—
SAN FRANCISCO D (2400583) DWR↗	1860-05-31	1	16.0	0	—
W F MEYER D (2400599) DWR↗	1905-12-15	3	16.0	0	—
TORCIDO D (2400592) DWR↗	1874-05-31	5	13.9	0	—
FRANCISCO SANCHEZ D (2400544) DWR↗	1858-03-31	1	12.5	0	—

No inventory or legal-document changes detected since the daily watch began.

Water-court filings this month (division-wide)

1 application in the 2026-06 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 2026-08-31 (0 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 1 filings, with excerpts

Case	What it asks	County	Excerpt
`2026CW3011`	make absolute	CONEJOS	CASE NUMBER 2026 CW3011 Application to make conditional water right absolute in Conejos County Name, address, email address of applicant: Tyler Huffaker, PO Box 54, Manassa, CO 81141 tophillquarterhorses@gmail.com (atty Erich Schwiesow PO Box 1974, Alamosa, CO…

Active substitute water supply plans in this district

Temporary State Engineer approvals to divert out of priority (37-92-308 / 37-90-137). A structure operating under one behaves differently under a call than its decreed rights alone suggest — the priority tables above don't know about these; this list does. Source: DWR’s active-SWSP register, refreshed nightly.

Plan	Type	Status	Expires	Structure	Documents
SKOGLUND	37-92-308(5) PLANS LESS THAN 5 YEARS	Additional Info Needed	—	—	plan file

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

Administration number

DWR administration numbers encode appropriation and adjudication dates; lower is more senior.