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PUMPKIN SWAG SEEP DITCH

Structure dossier · WDID 4000850 · 1 · HAPPY HOLLOW CREEK · DWR record

Where this page's figures come from

Generated 2026-08-27 19:50 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 1892-05-01 — 1129th 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: ZANOLA AND PELAZINI D (1892-04-01). Immediately behind: FISH LAKE RESERVOIR (1892-09-01).

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
20501.154621892-05-011907-09-28 3.250.0 CIRR 32

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 137 AF. Its most recent year on record, 2024, came in at 216 AF — 158% of that, and 13th lowest of the 15 years with a recorded volume.

This structure records both diversions and reservoir releases — they are separate water movements and are accounted separately below.

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 recordReleased (AF)Days recordedPeak (cfs)
2010 363 15th lowest of 15 · 265% of median — 203 2.0
2011 303 14th lowest of 15 · 221% of median — 210 1.5
2012 209 12th lowest of 15 · 153% of median — 199 1.3
2013 54 3rd lowest of 15 · 39% of median — 80 0.6
2014 144 9th lowest of 15 · 105% of median — 214 0.8
2015 114 6th lowest of 15 · 83% of median — 199 0.6
2016 169 10th lowest of 15 · 123% of median — 209 0.8
2017 121 7th lowest of 15 · 88% of median — 208 0.4
2018 41 2nd lowest of 15 · 30% of median — 205 0.1
2019 173 11th lowest of 15 · 126% of median — 200 0.6
2020 66 5th lowest of 15 · 48% of median — 187 0.2
2021 17 1st lowest of 15 · 12% of median — 58 0.2
2022 61 4th lowest of 15 · 44% of median — 196 0.2
2023 137 8th lowest of 15 · 100% of median — 195 0.4
2024 216 13th lowest of 15 · 158% of median — 162 0.8

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.