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FRANK GROH PUMP STATION

Structure dossier · WDID 5301172 · 8 · COLORADO RIVER · DWR record

Where this page's figures come from

Generated 2026-08-28 03:48 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 1903-05-09 — 141st 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: FRANK GROH DITCH (1903-05-09). Immediately behind: MEANA DITCH (1889-05-01).

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
20314.194861903-05-091905-12-05 0.90.0 CIRR 161

Recorded use (last 15 years on record)

In a median year this structure has a recorded diversion of 83 AF. Its most recent year on record, 2009, came in at 71 AF — 86% of that, and 3rd 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)
1995 196 15th lowest of 15 · 236% of median 101 1.0
1996 159 13th lowest of 15 · 192% of median 82 1.0
1997 171 14th lowest of 15 · 206% of median 88 1.0
1998 147 12th lowest of 15 · 177% of median 76 1.0
1999 95 10th lowest of 15 · 114% of median 50 1.0
2000 81 7th lowest of 15 · 98% of median 83 0.5
2001 29 1st lowest of 15 · 35% of median 33 0.5
2002 93 9th lowest of 15 · 112% of median 53 0.9
2003 70 2nd lowest of 15 · 84% of median 72 0.5
2004 76 5th lowest of 15 · 92% of median 78 0.5
2005 73 4th lowest of 15 · 88% of median 75 0.5
2006 83 8th lowest of 15 · 100% of median 85 0.5
2007 95 10th lowest of 15 · 114% of median 97 0.5
2008 79 6th lowest of 15 · 95% of median 82 0.5
2009 71 3rd lowest of 15 · 86% of median 73 0.5

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 1128 measured days; currency unknown (no data-coverage date to compare against)
record continuity sparse 37% of the irrigation seasons in 1995-2009 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.