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SAN LUIS VALLEY CNL
Structure dossier · WDID 2000829 · 1 · RIO GRANDE · DWR record
Where this page's figures come from
Generated 2026-08-27 19:17 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 in line
Priority 1885-01-05 — 257th most senior of the 8016 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: ARROYA D (1884-06-20). Immediately behind: KIRKPATRICK (PRAIRIE D) RECHARGE PIT (1885-01-05).
Decreed rights (13)
| 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 |
|---|---|---|---|---|---|---|---|
| 12789.0 | 1885-01-05 | 1896-05-01 | 92.9 | 0.0 | C | IRRRCH | 270 |
| 16923.14791 | 1890-06-30 | 1903-04-09 | 161.46 | 0.0 | C | IRRRCH | 1903-22B |
| 16923.15156 | 1891-06-30 | 1903-04-09 | 44.27 | 0.0 | C | IRRRCH | 1903-24D |
| 16923.15887 | 1893-06-30 | 1903-04-09 | 31.25 | 0.0 | C | IRRRCH | 1903-34D |
| 16923.16252 | 1894-06-30 | 1903-04-09 | 10.42 | 0.0 | C | IRRRCH | 1903-37C |
| 16923.16617 | 1895-06-30 | 1903-04-09 | 7.81 | 0.0 | C | IRRRCH | 1903-41C |
| 16983.0 | 1896-06-30 | 1903-04-09 | 18.23 | 0.0 | C | IRRRCH | 1903-45D |
| 17348.0 | 1897-06-30 | 1903-04-09 | 20.84 | 0.0 | C | IRRRCH | 1903-46D |
| 17713.0 | 1898-06-30 | 1903-04-09 | 26.04 | 0.0 | C | IRRRCH | 1903-49E |
| 18078.0 | 1899-06-30 | 1903-04-09 | 10.42 | 0.0 | C | IRRRCH | 1903-52D |
| 18443.0 | 1900-06-30 | 1903-04-09 | 27.34 | 0.0 | C | IRRRCH | 1903-57B |
| 19456.14975 | 1890-12-31 | 1916-09-13 | 50.0 | 0.0 | C | IRRRCH | 1916-30 |
| 47116.40116 | 1959-11-01 | 1979-12-31 | 0.0 | 574.76 | C | RCH |
Recorded use (last 15 years on record)
In a median year this structure has a recorded diversion of 14,678 AF. Its most recent year on record, 2025, came in at 14,678 AF — 100% of that, and 8th 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) |
|---|---|---|---|---|
| 2011 | 14,710 | 9th lowest of 15 · 100% of median | 218 | 379.0 |
| 2012 | 8,857 | 3rd lowest of 15 · 60% of median | 234 | 101.8 |
| 2013 | 7,013 | 2nd lowest of 15 · 48% of median | 69 | 208.0 |
| 2014 | 20,857 | 10th lowest of 15 · 142% of median | 70 | 512.8 |
| 2015 | 24,561 | 11th lowest of 15 · 167% of median | 153 | 544.6 |
| 2016 | 25,255 | 12th lowest of 15 · 172% of median | 314 | 558.1 |
| 2017 | 25,439 | 13th lowest of 15 · 173% of median | 133 | 389.7 |
| 2018 | 3,783 | 1st lowest of 15 · 26% of median | 365 | 99.4 |
| 2019 | 35,051 | 15th lowest of 15 · 239% of median | 365 | 583.2 |
| 2020 | 9,572 | 5th lowest of 15 · 65% of median | 366 | 207.0 |
| 2021 | 12,136 | 6th lowest of 15 · 83% of median | 364 | 311.4 |
| 2022 | 8,916 | 4th lowest of 15 · 61% of median | 277 | 276.4 |
| 2023 | 31,743 | 14th lowest of 15 · 216% of median | 245 | 432.4 |
| 2024 | 12,567 | 7th lowest of 15 · 86% of median | 275 | 288.7 |
| 2025 | 14,678 | 8th lowest of 15 · 100% of median | 304 | 604.5 |
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.