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MARIA DITCH

Structure dossier · WDID 2900660 · 1 · SAN JUAN RIVER · DWR record

Where this page's figures come from

Generated 2026-08-27 21:23 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 1912-09-01 — 267th most senior of the 853 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: DERMODY PUMP (1910-12-31). Immediately behind: BROWN WELL (1920-01-01).

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
41016.228891912-09-011968-12-19 1.50.0 CIRRFISFIRDOMSTK 68-14
59535.545421999-05-012013-12-31 0.150.0 CRECFIS

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 63 AF. Its most recent year on record, 2025, came in at 29 AF — 46% of that, and 6th 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)
2006 23 4th lowest of 15 · 36% of median — 50 0.4
2007 19 2nd lowest of 15 · 30% of median 35 62 0.2
2008 0 1st lowest of 15 · 0% of median 0 1 0.0
2009 20 3rd lowest of 15 · 32% of median 0 44 0.4
2011 23 4th lowest of 15 · 36% of median — 59 0.3
2016 428 15th lowest of 15 · 679% of median — 174 1.9
2017 394 14th lowest of 15 · 625% of median — 197 1.8
2018 127 12th lowest of 15 · 202% of median — 71 1.9
2019 71 9th lowest of 15 · 113% of median — 52 1.0
2020 112 11th lowest of 15 · 178% of median — 83 0.9
2021 63 7th lowest of 15 · 100% of median — 108 0.4
2022 105 10th lowest of 15 · 167% of median — 151 0.5
2023 143 13th lowest of 15 · 227% of median — 70 1.5
2024 63 7th lowest of 15 · 100% of median — 64 1.1
2025 29 6th lowest of 15 · 46% of median — 55 0.4

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.