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LONG LAKE RES LOWER
Structure dossier · WDID 0704475 · RESERVOIR · RALSTON CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 22:12 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (4ab2507) — every figure regenerates from this named code version and data image.
Where it sits
Location as DWR records it. Faint dots are the neighbouring water; click any to open it.
Current administration
● Fully called out — call at SWADLEY LONGAN DITCH (RALSTON CREEK, priority 1861-04-09).
● Fully called out — call at CLEAR CR PLATTE RIVER D (CLEAR CREEK, priority 1861-11-01).
● Fully called out — call at FARMERS INDEPENDENT DITCH (SOUTH PLATTE RIVER, priority 1865-11-20).
Which of its rights are out of priority?
Not computable for this structure: only 3 analog year(s) have both flow and a complete administration record; 4 needed.
Where it sits in line
Priority 1909-06-06 — 211th most senior of the 1815 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: 0705283 (1908-06-20). Immediately behind: 0700604 (1909-11-22).
On RALSTON CREEK at river mile 47.0, it is 8th of 24 down the reach. Immediately upstream: HAINES PIQUETTE DITCH. Immediately downstream: BLUNN RES.
Position on the modelled network, not a claim about whose water this is — a stream carries water from many rights at once, and diverted water returns to it.
Decreed rights (1)
| 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 |
|---|---|---|---|---|---|---|---|
| 21706.0 | 1909-06-06 | 1936-05-13 | 292.0 | 716.3 | A | IRR |
Legal record & documents
2 decreed actions on record across
1 court case:
CA60052.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
CA60052 | 2 | 1936-05-13 | S |
DWR's own records for this structure: net amounts · transactions & adjudication history · scanned decrees (search a case number there for the imaged document). On this site: the district's full legal picture →
Recorded use (last 10 years on record)
In a median year this structure has a recorded diversion of 127 AF. Its most recent year on record, 2025, came in at 109 AF — 86% of that, and 2nd lowest of the 10 years with a recorded volume.
This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.
| 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 | Released (AF) | Days recorded | Peak (cfs) |
|---|---|---|---|---|---|
| 2016 | 586 | 10th lowest of 10 · 461% of median | 125 | 35 | 12.9 |
| 2017 | 63 | 1st lowest of 10 · 50% of median | 56 | 16 | 3.0 |
| 2018 | 111 | 3rd lowest of 10 · 87% of median | 79 | 14 | 8.0 |
| 2019 | 111 | 3rd lowest of 10 · 87% of median | 111 | 33 | 5.0 |
| 2020 | 161 | 8th lowest of 10 · 127% of median | 153 | 47 | 4.0 |
| 2021 | 125 | 5th lowest of 10 · 98% of median | 93 | 39 | 2.0 |
| 2022 | 129 | 6th lowest of 10 · 102% of median | — | 42 | 2.0 |
| 2023 | 139 | 7th lowest of 10 · 109% of median | — | 12 | 10.0 |
| 2024 | 379 | 9th lowest of 10 · 298% of median | 339 | 184 | 8.0 |
| 2025 | 109 | 2nd lowest of 10 · 86% of median | 111 | 123 | 2.0 |
Trends for this structure
Recorded use shows no clear trend over its last 10 recorded years — which is itself worth knowing.
Its reference gage, HAINES PIQUETTE DITCH : no clear flow trend.
How good is our record of it?
Grade B (8/10 points) — the components below are the finding; the letter alone is not.
The rubric, component by component
| Check | State | Detail |
|---|---|---|
| identity | complete | name, type, and water source all on file |
| decreed rights | on file | 1 right(s), seniority decoded |
| diversion record | current | 545 measured days, newest 282 day(s) before the data's end (DWR publishes ~1 year in arrears) |
| record continuity | sparse | 27% of the irrigation seasons in 2016-2025 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.