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HALLSTED SEPG DITCH NO 2

Structure dossier · WDID 3100629 · 1 · LOS PINOS RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 23:51 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 — 466th 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: HALLSTED SEPG DITCH NO 1 (1930-12-31). Immediately behind: CALMETT NO 1 PUMP AND PL (1952-12-31).

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 129 AF. Its most recent year on record, 2005, came in at 69 AF — 54% of that, and 4th 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 189 15th lowest of 15 · 146% of median 95 1.5
1992 131 9th lowest of 15 · 102% of median 75 1.5
1993 169 14th lowest of 15 · 131% of median 92 1.2
1994 129 8th lowest of 15 · 100% of median 73 1.2
1995 153 13th lowest of 15 · 119% of median 92 1.0
1996 144 12th lowest of 15 · 112% of median 84 1.2
1997 134 11th lowest of 15 · 104% of median 82 1.0
1998 126 7th lowest of 15 · 98% of median 88 1.2
1999 63 2nd lowest of 15 · 49% of median 45 1.0
2000 132 10th lowest of 15 · 102% of median 102 1.0
2001 74 5th lowest of 15 · 57% of median 94 0.8
2002 37 1st lowest of 15 · 29% of median 45 0.8
2003 81 6th lowest of 15 · 63% of median 95 0.8
2004 65 3rd lowest of 15 · 50% of median 81 0.6
2005 69 4th lowest of 15 · 54% of median 91 0.6

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
CheckStateDetail
identity complete name, type, and water source all on file
decreed rights on file 1 right(s), seniority decoded
diversion record present 3554 measured days; currency unknown (no data-coverage date to compare against)
record continuity patchy 51% of the irrigation seasons in 1973-2005 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.