BasinWise — Dependency & Reliability Intelligencerelease v1 · genome v1 · run run_water_rights_v133 signals92,201 instances

Overview / structure / dependency report

70 RANCH STORAGE RESERVOIR

WDID 0103028Water Right Dependency Report · generated from release evidence · 2026-07-30

Decreed

200.0 cfs

8 right(s) · senior 1877-09-15

Median reliability

98%

severe: 94%

Observed callers

dominant: SOUTH PLATTE RIVER COMPACT

Served land

0 parcels

$0 assessed

Active signals

0 entitlement gap(s)

1 · What it isdecree components and legal genealogy

Right	Priority	Amount	Uses	Status
0103028-10120.00000	1877-09-15 (admin 10120.00000)	— AF	2ACR	Absolute
0103028-45655.45437	1974-05-27 (admin 45655.45437)	— AF	2ACR	Absolute
0103028-59899.00000	2013-12-30 (admin 59899.00000)	200 cfs	2ACER	Conditional
0103028-60662.00000	2016-02-01 (admin 60662.00000)	6,000 AF	123489A	Conditional
0103028-60750.00000	2016-04-29 (admin 60750.00000)	— AF	123489A	Absolute
0103028-7603.00000	1870-10-25 (admin 7603.00000)	— AF	2ACR	Absolute
0103028-7928.00000	1871-09-15 (admin 7928.00000)	— AF	2ACR	Absolute
0103028-9080.00000	1874-11-10 (admin 9080.00000)	— AF	2ACR	Absolute

2 · How it has performedbeneficial-use evidence, honestly classified

water quality composite: 0.78

3 · What it depends on & who controls its riverobserved call causality + supply support

SOUTH PLATTE RIVER COMPACT: 2292.4 day-eq · 612 episodes / 36 seasons · last 2026 · conf 0.98
BURLINGTON D RIVER HEADGATE: 1693.2 day-eq · 2351 episodes / 37 seasons · last 2026 · conf 0.98
HARMONY DITCH 2: 1438.8 day-eq · 388 episodes / 16 seasons · last 2026 · conf 0.98
EVANS NO 2 DITCH: 1433.4 day-eq · 1482 episodes / 33 seasons · last 2026 · conf 0.98
LITTLETON BOAT CHUTE NO 9: 976.5 day-eq · 240 episodes / 10 seasons · last 2025 · conf 0.98
WESTERN MUTUAL DITCH: 759.6 day-eq · 628 episodes / 19 seasons · last 2026 · conf 0.98
owner evidence: ARAPAHOE COUNTY WATER & WASTEWATER AUTHORITY · probable (0.55)
owner evidence: ARAPAHOE COUNTY WATER & WASTEWATER AUTHORITY · probable (0.55)
owner evidence: ARAPAHOE COUNTY WATER & WASTEWATER AUTHORITY · probable (0.55)
owner evidence: ARAPAHOE COUNTY WATER & WASTEWATER AUTHORITY · probable (0.55)

4 · What happens under stressempirical administration replay + season nowcast

median year: 98% seasonal reliability
severe drought (2002-class): 94% seasonal reliability
method: empirical replay of observed administration by condition class — modeled, not observed

5 · What else is affected — the land under this waterserved parcels with entitlement + conveyance posture (three truths, never collapsed)

Parcel	Owner (assessor)	Acres	Assessed	Coverage	Entitlement	Deed posture

6 · What can impair it — active signalsevery detection on this structure, its rights, and its land

Pri	Signal	Detail	Score
95	Critical call exposure	70 RANCH STORAGE RESERVOIR (2013 priority) carries 3,999 day-equivalents of observed call exposure from 91 senior caller(s); dominant caller SOUTH PLATTE RIVER COMPACT (573.1 day-eq). 3212 season-days curtailed in the last five seasons.	100.0
85	Season call nowcast: expected curtailment	70 RANCH STORAGE RESERVOIR, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~212 of 214 season days from the basin's administration record. Dominant caller SOUTH PLATTE RIVER COMPACT: P(call by Jun 15) = 1 over 6 comparable seasons.	100.0
66	Critical call exposure	70 RANCH STORAGE RESERVOIR (1974 priority) carries 3,191.6 day-equivalents of observed call exposure from 84 senior caller(s); dominant caller SOUTH PLATTE RIVER COMPACT (573.1 day-eq). 2575 season-days curtailed in the last five seasons.	87.9
66	Critical call exposure	70 RANCH STORAGE RESERVOIR (2016 priority) carries 3,999 day-equivalents of observed call exposure from 91 senior caller(s); dominant caller SOUTH PLATTE RIVER COMPACT (573.1 day-eq). 3212 season-days curtailed in the last five seasons.	100.0
66	Critical call exposure	70 RANCH STORAGE RESERVOIR (2016 priority) carries 3,999 day-equivalents of observed call exposure from 91 senior caller(s); dominant caller SOUTH PLATTE RIVER COMPACT (573.1 day-eq). 3212 season-days curtailed in the last five seasons.	100.0
65	Critical call exposure	70 RANCH STORAGE RESERVOIR (1877 priority) carries 489 day-equivalents of observed call exposure from 20 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 411 season-days curtailed in the last five seasons.	46.5
58	Season call nowcast: expected curtailment	70 RANCH STORAGE RESERVOIR, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~212 of 214 season days from the basin's administration record. Dominant caller SOUTH PLATTE RIVER COMPACT: P(call by Jun 15) = 1 over 6 comparable seasons.	100.0
53	Augmentation condition not verified	70 RANCH STORAGE RESERVOIR: the decree requires augmentation coverage for out-of-priority depletions, but NO plan membership is found. Verify coverage before relying on this supply — absent a plan, curtailment is immediate on the next call.	59.5

7 · Verify before closingthe transaction-specific evidence checklist

resolve right ownership: best evidence is probable — county deed research + company records required
verify diligence status: conditional components require a current diligence finding
confirm administration exposure: 6 observed senior caller(s); verify current call status with the division office
professional review: this report is data intelligence, not a legal or engineering opinion

Evidence basewhat this report rests on — and what it doesn't

source coverage: 6/10 sources live — development (seed fallback present)
sources: CDSS structures/net-amounts/calls/diversions · OIT parcels (annual, ≤12mo lag) · irrigated lands · satellite ET · court outcomes · company ledgers
disclaimer: data intelligence from public + program records; not a legal opinion, engineering report, or title commitment