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SOMERSET WATER SUP SYS

Structure dossier · WDID 4000607 · 7 · NORTH FORK GUNNISON RIVE · DWR record

Where this page's figures come from

Generated 2026-08-27 19:16 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 1902-11-15 — 1744th most senior of the 4661 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: FOUR CORNERS RESERVOIR (1902-06-10). Immediately behind: J B DRAKE SEEP DITCH (1903-03-01).

Decreed rights (2)

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. UnitsUsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
31924.193111902-11-151954-03-20 0.90.0 CMUNIND J91
36144.01948-12-161954-03-20 0.90.0 CMUNIND J329

Recorded use (last 11 years on record)

In a median year this structure has a recorded diversion of 69 AF. Its most recent year on record, 1979, came in at 50 AF — 72% of that, and 2nd lowest of the 11 years with a recorded volume.

YearDiverted (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 recordDays recordedPeak (cfs)
1969 12 1st lowest of 11 · 17% of median 61 0.1
1970 72 7th lowest of 11 · 104% of median 365 0.1
1971 72 7th lowest of 11 · 104% of median 365 0.1
1972 69 6th lowest of 11 · 100% of median 366 0.1
1973 51 3rd lowest of 11 · 74% of median 365 0.1
1974 73 9th lowest of 11 · 106% of median 365 0.1
1975 75 10th lowest of 11 · 109% of median 365 0.2
1976 66 4th lowest of 11 · 96% of median 366 0.2
1977 76 11th lowest of 11 · 110% of median 365 0.2
1978 68 5th lowest of 11 · 99% of median 365 0.2
1979 50 2nd lowest of 11 · 72% of median 304 0.1

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.