Hydrohistorian
Carnero Creek on the ground — the ditches, wells, reservoirs and gages of Water District 27 · 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 8. 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 |
|---|---|---|---|---|---|
| Moon Pass | 11110 | 0.0 | 0.0 | — | April 8 (6.8 in) |
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: 1 parent disagreement, 2 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 2 streams, 1 agree. Know this water? Tell us →
| Stream | This site routes it to | DWR routes it to |
|---|---|---|
| La Garita Creek | the mainstem | Saguache Creek |
Sizable streams DWR maps here that this network does not carry:
Mogotas Arroyo (8 mi) · Coolbroth Creek (5 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.
Schematic
Historical
Evolution of the network
Trends
This year, in context
In the weeks around 2026-07-06 (the newest reading on file), flows at the 2 ranked gages are running at a median 9% of their own long-term norm for this window — 2 below a typical year, 0 at or above. Driest relative to its record: CARNERO CREEK NEAR LA GARITA, CO., ranking 1st lowest of 108 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 19:52 from 2 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.
None of the 2 gages with enough record shows a significant trend or a detected shift — which is itself the finding.
Drought history, cost, and the four-century context moved to the Drought tab.
No gage shows a statistically significant trend or changepoint yet.
2 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. 2 gage(s) and 36 structure(s) report in 2026, but structure reporting only reached half its modern level around ~1986. 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) |
|---|---|---|
| 1910s | 2 | 0 |
| 1920s | 2 | 0 |
| 1930s | 2 | 0 |
| 1940s | 2 | 0 |
| 1950s | 2 | 12 |
| 1960s | 2 | 16 |
| 1970s | 2 | 14 |
| 1980s | 2 | 24 |
| 1990s | 2 | 37 |
| 2000s | 2 | 32 |
| 2010s | 2 | 44 |
| 2020s | 2 | 36 |
Mass-balance (network closure) trend
Structure divrec-history backfill coverage as of the last check: 13% of 328 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: 137 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 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 | 13% of schematic structures have data |
Independent check: PASS — 100.0000% agreement across 183,751 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 — 100.00% day-level agreement with USGS's own published records for the same gages, across 2 co-listed station(s) and 42,223 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.
2 gage(s) / 71,639 daily values (1919-04-01–2026-07-06); 75 structure(s) with diversion records; 1304 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
17,726 water-level measurements across 137 monitored well(s) — 73 alluvial, 22 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 54 well(s) with enough record for a trend test: 42 declining, 0 rising.
| Fastest-declining wells | Setting | ft / decade | Span | p |
|---|---|---|---|---|
| ▸ NA04101018DDD1 EW-41U | alluvial | -12.03 | 28 yr | 0.0 |
| ▸ NA04200936DDD1 RG23 | alluvial | -9.67 | 15 yr | 0.0001 |
| ▸ NA04100901DCD2 EW-48C | alluvial | -9.55 | 21 yr | 0.0 |
| ▸ NA04100901DCD1 EW-48U | alluvial | -9.46 | 21 yr | 0.0 |
| ▸ NA04101018DDD2 EW-41C | alluvial | -9.25 | 32 yr | 0.0 |
| ▸ NA04101004CCC1 EW-47U | alluvial | -8.28 | 35 yr | 0.0 |
| ▸ NA04101004CCC2 EW-47C-1 | alluvial | -8.24 | 34 yr | 0.0 |
| ▸ NA04100921DAA RG28-1 | alluvial | -7.27 | 43 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.
Snow and runoff
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 |
|---|---|---|---|---|---|
| Moon Pass | 11110 | 0.0 | 0.0 | — | April 8 (6.8 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 (2009–2026)
A bad snow year here comes in two flavors (both called snow droughtA winter that shorts the snowpack. It happens two ways: a dry one, where the snow never comes, and a warm one, where near-normal snow falls but melts off weeks early -- and the river feels them differently.), and the river feels them differently. In 3 of the last 18 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 46% of median.
The snow never came: 2012, 2018, 2026. The snow left early: 2022.
Computed by this site from 1 SNOTEL site’ full daily records (NRCS AWDB, back to 2009). 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.
Drought
Right now
This is the 2nd-driest week 27 in 108 years of record at CARNERO CREEK NEAR LA GARITA, CO. (as of 2026-06-29; this week’s flow sits at the 2nd percentile for the date). On this week’s US Drought Monitor, Saguache County is 40% in D4 exceptional drought (2026-08-25). 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 1919, week by week
Each thin row is a year at CARNERO CREEK NEAR LA GARITA, CO.; 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 Saguache 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 2014 — 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 (392 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 |
|---|---|---|---|---|
| the 2020-22 drought | 2020-08-03 → 2021-07-12 | 49 | 14th (2021-01-04) | 5 weeks |
| the 2018 drought | 2018-07-16 → 2019-07-01 | 50 | 9th (2019-01-21) | 0 weeks |
| the 2012-13 drought | 2010-09-27 → 2013-11-11 | 163 | 5th (2013-03-25) | 1 week |
| unnamed dry spell | 2009-12-21 → 2010-06-14 | 25 | 21st (2010-03-22) | 179 weeks |
| unnamed dry spell | 2005-11-28 → 2006-10-09 | 45 | 19th (2006-02-20) | 8 weeks |
| the 2002 drought | 2002-05-20 → 2004-05-31 | 106 | 7th (2002-10-14) | 4 weeks |
| unnamed dry spell | 1996-07-22 → 1997-03-24 | 35 | 13th (1996-10-21) | 22 weeks |
| unnamed dry spell | 1991-11-11 → 1992-07-06 | 34 | 19th (1992-03-30) | 10 weeks |
| unnamed dry spell | 1989-12-11 → 1990-08-13 | 35 | 17th (1990-03-12) | 3 weeks |
| the 1981 drought | 1980-12-29 → 1981-11-23 | 47 | 12th (1981-07-06) | 40 weeks |
| the 1977 drought | 1977-02-21 → 1979-04-30 | 114 | 13th (1977-10-31) | 4 weeks |
| unnamed dry spell | 1974-06-10 → 1975-07-07 | 56 | 16th (1974-10-21) | 0 weeks |
| unnamed dry spell | 1972-09-11 → 1973-04-09 | 30 | 19th (1972-10-09) | 6 weeks |
| unnamed dry spell | 1966-11-07 → 1967-10-16 | 49 | 14th (1967-06-05) | 5 weeks |
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 2018, federal crop insurance has paid $16,321 in drought-caused claims across Saguache county — 0.0% of all insured crop losses there. The worst year was 2018 ($16,321).
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.
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 1859-12-31 to 2019-01-29. Of the 20 structures with a yield estimate, the median one’s senior right was in priority 6% of a median irrigation season and 0% in a dry one. 14 abandonment screens and 22 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: 1530 across 1304 structure(s); 35 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.
- SHOWN D (2700545) DWR↗ stopped 2025-10-18 (8+ days) — call at SANGRE CRISTO TRINCHERA curtailing 100% of its decreed rate [heuristic-strong]
- OMNIBUS D (2700538) DWR↗ stopped 2025-09-25 (9+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 80% of its decreed rate [heuristic-partial]
- HOLLAND D (2700521) DWR↗ stopped 2025-08-24 (21+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 72% of its decreed rate [heuristic-partial]
- HOLLAND D (2700521) DWR↗ stopped 2025-08-03 (7+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 72% of its decreed rate [heuristic-partial]
- LA LOMA D (2700527) DWR↗ stopped 2025-08-03 (43+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 79% of its decreed rate [heuristic-partial]
- ROCKY HILL SEEPAGE AND OVERFLOW DITCH (2700543) DWR↗ stopped 2025-08-03 (70+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
- ROCKY HILL SEEPAGE AND OVERFLOW DITCH (2700543) DWR↗ stopped 2025-07-13 (8+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
- JUAN TRUJILLO D (2700525) DWR↗ stopped 2025-07-06 (99+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 72% of its decreed rate [heuristic-partial]
- SHOWN D (2700545) DWR↗ stopped 2025-06-30 (9+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 84% of its decreed rate [heuristic-partial]
- HOLLAND D (2700521) DWR↗ stopped 2025-06-29 (7+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 68% of its decreed rate [heuristic-partial]
- MARCELINO MARTINEZ WASTE (2700531) DWR↗ stopped 2025-05-11 (21+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 100% of its decreed rate [heuristic-strong]
- SHOWN D (2700545) DWR↗ stopped 2024-10-29 (54+ days) — call at RIO GRANDE COMPACT - LOBATOS curtailing 84% of its decreed rate [heuristic-partial]
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 |
|---|---|---|---|
| CARNERO N BR DIVERSION (RIO GRANDE CANAL (2700683) DWR↗ | 1986-05-15 | 5.6% / 0.0% | 5.6% / 0.0% |
| USFS QP45A (2700702) DWR↗ | 1938-06-20 | 5.6% / 0.0% | 5.6% / 0.0% |
| USFS QP45D (2700705) DWR↗ | 1905-06-13 | 5.6% / 0.0% | 5.6% / 0.0% |
| ROCKY HILL SEEPAGE AND OVERFLOW DITCH (2700543) DWR↗ | 1891-11-17 | 6.3% / 0.0% | 6.3% / 0.0% |
| GUNBARREL SEPG OVFL D (2700520) DWR↗ | 1891-11-17 | 6.3% / 0.0% | 6.3% / 0.0% |
| LATERAL 7-A SEPG OVFL D (2700529) DWR↗ | 1891-11-17 | 6.3% / 0.0% | 6.3% / 0.0% |
| BIEDELL D NO 10 (2700502) DWR↗ | 1870-05-31 | 53.3% / 0.0% | 5.6% / 0.0% |
| OMNIBUS D (2700538) DWR↗ | 1869-04-30 | 54.7% / 0.0% | 5.6% / 0.0% |
| JOHNNIE SMITH D NO 1 (2700523) DWR↗ | 1888-04-30 | 11.9% / 0.0% | 5.6% / 0.0% |
| HOME D NO 1 (2700522) DWR↗ | 1871-04-30 | 51.6% / 0.0% | 5.6% / 0.0% |
| USFS QP45F (2700707) DWR↗ | 1905-06-13 | 5.6% / 0.0% | 5.6% / 0.0% |
| ANDERSON BERNARD SEPG D (2700557) DWR↗ | 1948-10-23 | 5.6% / 0.0% | 5.6% / 0.0% |
Abandonment radar (14 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 ~1986 — idleness that begins before then may be unreported use, not nonuse (flagged † below).
- COOLIE D (2700507) DWR↗ (1884-12-31, 1.0 cfs decreed): last active 1985 — 40 years idle † predates modern reporting era — last recorded activity predates this basin's modern reporting era (~1986) -- early absence of record is weak evidence of nonuse
- VALE SEEPAGE D (2700597) DWR↗ (1922-04-01, 8.3 cfs decreed): last active 1993 — 32 years idle
- AYERS D (2700620) DWR↗ (1981-02-26, 0.0 cfs decreed): last active 1993 — 32 years idle
- N DITCH (2700631) DWR↗ (1983-05-01, 5.0 cfs decreed): last active 1995 — 30 years idle
- GUNBARREL SEPG OVFL D (2700520) DWR↗ (1891-11-17, 44.0 cfs decreed): last active 1996 — 29 years idle
- HARNEY DITCH (2700691) DWR↗ (1970-06-30, 5.0 cfs decreed): last active 2000 — 25 years idle
- LA GARITA D (2700526) DWR↗ (1940-08-12, 20.0 cfs decreed): last active 2001 — 24 years idle
- WILSON D NO 1 (2700552) DWR↗ (1884-12-31, 4.4 cfs decreed): last active 2004 — 21 years idle
- C DITCH (2700632) DWR↗ (1983-05-01, 10.0 cfs decreed): last active 2004 — 21 years idle
- MANUEL D 1 (2700530) DWR↗ (1873-06-30, 2.8 cfs decreed): last active 2007 — 18 years idle
Compliance screens (22 advisory flags)
Screened 47 of 1304 structures with rights (47 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.
- LA GARITA D (2700526) DWR↗: Observed p99 daily rate 64.0 cfs (max 64.0) exceeds total decreed absolute 20.0 cfs across 2160 recorded day(s).
- MCLEOD D NO 3 (2700533) DWR↗: Observed p99 daily rate 40.0 cfs (max 60.0) exceeds total decreed absolute 0.7 cfs across 6092 recorded day(s).
- GREEN D NO 1 (2700518) DWR↗: Observed p99 daily rate 19.0 cfs (max 30.0) exceeds total decreed absolute 16.3 cfs across 13559 recorded day(s).
- C DITCH (2700632) DWR↗: Observed p99 daily rate 15.0 cfs (max 20.0) exceeds total decreed absolute 10.0 cfs across 514 recorded day(s).
- BIEDELL D NO 2 (2700503) DWR↗: Observed p99 daily rate 12.0 cfs (max 25.0) exceeds total decreed absolute 2.3 cfs across 6734 recorded day(s).
- LA MAGOTES D (2700528) DWR↗: Observed p99 daily rate 12.0 cfs (max 16.0) exceeds total decreed absolute 1.8 cfs across 4902 recorded day(s).
- WILSON D NO 1 (2700552) DWR↗: Observed p99 daily rate 10.0 cfs (max 10.0) exceeds total decreed absolute 4.4 cfs across 2454 recorded day(s).
- WILSON D NO 4 (2700553) DWR↗: Observed p99 daily rate 8.0 cfs (max 10.0) exceeds total decreed absolute 2.1 cfs across 6272 recorded day(s).
- NAVIN D (2700604) DWR↗: Observed p99 daily rate 7.0 cfs (max 13.2) exceeds total decreed absolute 5.5 cfs across 4008 recorded day(s).
- MCLEOD D NO 4 & 5 (2700714) DWR↗: Observed p99 daily rate 7.0 cfs (max 9.0) exceeds total decreed absolute 6.1 cfs across 2926 recorded day(s).
Seniority (top structures by decreed rate)
| Structure | Senior priority date | Rights | Decreed abs (cfs) | Decreed abs (AF) | Conditional? |
|---|---|---|---|---|---|
| CARNERO N BR DIVERSION (RIO GRANDE CANAL (2700683) DWR↗ | 1986-05-15 | 1 | 150.0 | 0 | — |
| USFS QP45A (2700702) DWR↗ | 1938-06-20 | 1 | 116.2 | 0 | — |
| USFS QP45D (2700705) DWR↗ | 1905-06-13 | 1 | 61.0 | 0 | — |
| ROCKY HILL SEEPAGE AND OVERFLOW DITCH (2700543) DWR↗ | 1891-11-17 | 1 | 44.6 | 0 | — |
| GUNBARREL SEPG OVFL D (2700520) DWR↗ | 1891-11-17 | 1 | 44.0 | 0 | — |
| LATERAL 7-A SEPG OVFL D (2700529) DWR↗ | 1891-11-17 | 1 | 43.6 | 0 | — |
| BIEDELL D NO 10 (2700502) DWR↗ | 1870-05-31 | 18 | 42.8 | 0 | — |
| OMNIBUS D (2700538) DWR↗ | 1869-04-30 | 25 | 42.7 | 0 | — |
| JOHNNIE SMITH D NO 1 (2700523) DWR↗ | 1888-04-30 | 3 | 42.7 | 0 | — |
| HOME D NO 1 (2700522) DWR↗ | 1871-04-30 | 11 | 32.4 | 0 | — |
| USFS QP45F (2700707) DWR↗ | 1905-06-13 | 1 | 26.2 | 0 | — |
| ANDERSON BERNARD SEPG D (2700557) DWR↗ | 1948-10-23 | 1 | 24.0 | 0 | — |
| USFS QP45E (2700706) DWR↗ | 1905-06-13 | 1 | 23.0 | 0 | — |
| LA GARITA D (2700526) DWR↗ | 1940-08-12 | 1 | 20.0 | 0 | — |
| WHITE D (2700551) DWR↗ | 1908-04-22 | 3 | 17.9 | 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 |
|---|---|---|---|---|---|
| FORD FARMS INC | 37-92-308(5) PLANS LESS THAN 5 YEARS | Approved | 2026-04-30 | — | plan file |
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.