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TESORO WELL NO 1
Structure dossier · WDID 4306116 · 2 · FLAG CREEK · DWR record
Where this page's figures come from
Generated 2026-08-27 23:06 by Hydrohistorian. Sources: DWR HydroBase snapshot HydroBase_CO_20260707 (history) + CDSS REST (current), USGS NWIS cross-checks. Engine v0.5.0 (a1c9146) — 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.
Which of its rights are out of priority?
Not computable for this structure: this structure is not on the modelled flow network, so no reference gage can honestly stand in for it.
Where it sits in line
Priority 1978-04-01 — 1874th most senior of the 3293 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: SOUTH FORK WHITE R MSF (1977-11-15). Immediately behind: FEED YARD SPRING 5 (1978-04-15).
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 |
|---|---|---|---|---|---|---|---|
| 46842.0 | 1978-04-01 | 1978-12-31 | 0.11 | 0.0 | C | IRRDOM |
Legal record & documents
2 decreed actions on record across
2 court cases:
W3744-78, 84CW0011.
Every case, dated
| Case | Actions | Latest adjudication | Types |
|---|---|---|---|
W3744-78 | 1 | 1978-12-31 | S |
84CW0011 | 1 | 1978-12-31 | 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 6 years on record)
In a median year this structure has a recorded diversion of 46 AF. Its most recent year on record, 2010, came in at 66 AF — 142% of that, and 5th lowest of the 6 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) |
|---|---|---|---|---|
| 2002 | 13 | 1st lowest of 6 · 28% of median | 61 | 0.1 |
| 2003 | 72 | 6th lowest of 6 · 155% of median | 365 | 0.1 |
| 2004 | 57 | 4th lowest of 6 · 123% of median | 366 | 0.1 |
| 2005 | 36 | 3rd lowest of 6 · 77% of median | 304 | 0.1 |
| 2009 | 13 | 1st lowest of 6 · 28% of median | 61 | 0.1 |
| 2010 | 66 | 5th lowest of 6 · 142% of median | 304 | 0.1 |
How good is our record of it?
Grade A (9/10 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 | present | 1461 measured days; currency unknown (no data-coverage date to compare against) |
| record continuity | continuous | 85% of the irrigation seasons in 2002-2010 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.