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HALLSTED SEPG DITCH NO 1

Structure dossier · WDID 3100628 · 1 · LOS PINOS RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:11 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 1930-12-31 — 465th most senior of the 1037 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: SCOTT SPRING (1930-06-30). Immediately behind: HALLSTED SEPG DITCH NO 2 (1930-12-31).

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. UnitsUsesWhat the court said this water may be used for -- irrigation, municipal supply, augmentation and so on.Case
44559.295841930-12-311972-12-31 1.00.0 CIRR

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 132 AF. Its most recent year on record, 2005, came in at 68 AF — 52% of that, and 2nd lowest of the 15 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)
1991 161 11th lowest of 15 · 122% of median 87 2.0
1992 146 9th lowest of 15 · 111% of median 81 2.0
1993 164 13th lowest of 15 · 124% of median 92 1.2
1994 149 10th lowest of 15 · 113% of median 74 1.5
1995 161 11th lowest of 15 · 122% of median 96 1.0
1996 205 15th lowest of 15 · 155% of median 101 1.5
1997 130 7th lowest of 15 · 98% of median 83 1.0
1998 164 13th lowest of 15 · 124% of median 87 1.5
1999 89 4th lowest of 15 · 67% of median 68 1.0
2000 132 8th lowest of 15 · 100% of median 93 1.0
2001 110 6th lowest of 15 · 83% of median 109 0.8
2002 42 1st lowest of 15 · 32% of median 46 0.8
2003 109 5th lowest of 15 · 83% of median 103 0.8
2004 73 3rd lowest of 15 · 55% of median 85 0.9
2005 68 2nd lowest of 15 · 52% of median 83 0.6

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.