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PURGATORY NO 2 DITCH

Structure dossier · WDID 5300759 · 1 · LITTLE BLACKTAIL CREEK · DWR record

Where this page's figures come from

Generated 2026-08-28 00:38 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 1906-06-01 — 280th most senior of the 1231 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: KIRBY JONES DITCH HGT 2 (1903-12-31). Immediately behind: HOOVER DITCH (1909-11-27).

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
33023.206051906-06-011956-02-07 5.00.0 CIRR 285

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 294 AF. Its most recent year on record, 2024, came in at 450 AF — 153% of that, and 10th 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)
2007 647 12th lowest of 15 · 220% of median 97 4.7
2008 88 2nd lowest of 15 · 30% of median 44 1.2
2009 112 5th lowest of 15 · 38% of median 55 1.2
2010 168 6th lowest of 15 · 57% of median 48 2.0
2011 475 11th lowest of 15 · 162% of median 169 2.0
2012 93 3rd lowest of 15 · 32% of median 54 1.0
2014 93 3rd lowest of 15 · 32% of median 39 1.2
2015 405 9th lowest of 15 · 138% of median 198 4.5
2016 959 15th lowest of 15 · 326% of median 169 6.3
2017 294 8th lowest of 15 · 100% of median 105 2.8
2018 730 13th lowest of 15 · 248% of median 107 5.7
2019 789 14th lowest of 15 · 268% of median 190 3.5
2020 262 7th lowest of 15 · 89% of median 50 3.6
2023 68 1st lowest of 15 · 23% of median 188 0.2
2024 450 10th lowest of 15 · 153% of median 97 3.5

How good is our record of it?

Grade B (7/10 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 4138 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 26% of the irrigation seasons in 1951-2024 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.