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

Overview / structure / dependency report

WELLMAN DITCH

WDID 0600557Water Right Dependency Report · generated from release evidence · 2026-07-31

Decreed

120.0 cfs

3 right(s) · senior 1917-03-08

Median reliability

87%

severe: 37%

Observed callers

dominant: BOULDER WHITE ROCK DITCH

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
0600557-24538.00000	1917-03-08 (admin 24538.00000)	50 cfs	0	Absolute
0600557-24868.00000	1918-02-01 (admin 24868.00000)	70 cfs	0	Absolute
0600557-54681.00000	1999-09-17 (admin 54681.00000)	— AF	1478Q	Absolute

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

water quality composite: 0.71

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

BOULDER WHITE ROCK DITCH: 487.9 day-eq · 423 episodes / 23 seasons · last 2026 · conf 0.98
HIGHLAND SOUTH SIDE DITCH: 430.5 day-eq · 102 episodes / 13 seasons · last 2025 · conf 0.98
NORTH BOULDER FARMERS DITCH: 309.9 day-eq · 249 episodes / 22 seasons · last 2026 · conf 0.98
LEGGETT DITCH: 304.2 day-eq · 264 episodes / 22 seasons · last 2026 · conf 0.98
FARMERS DITCH: 248.4 day-eq · 129 episodes / 15 seasons · last 2026 · conf 0.98
BOULDER WELD CTY DITCH: 210.9 day-eq · 213 episodes / 19 seasons · last 2025 · conf 0.98
owner evidence: XCEL ENERGY · probable (0.55)
owner evidence: XCEL ENERGY · probable (0.55)
owner evidence: XCEL ENERGY · probable (0.55)

4 · What happens under stressempirical administration replay + season nowcast

median year: 87% seasonal reliability
severe drought (2002-class): 37% 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
82	Critical call exposure	WELLMAN DITCH (1918 priority) carries 834.6 day-equivalents of observed call exposure from 25 senior caller(s); dominant caller HIGHLAND SOUTH SIDE DITCH (143.5 day-eq). 626 season-days curtailed in the last five seasons.	52.5
77	Critical call exposure	WELLMAN DITCH (1917 priority) carries 834.6 day-equivalents of observed call exposure from 25 senior caller(s); dominant caller HIGHLAND SOUTH SIDE DITCH (143.5 day-eq). 626 season-days curtailed in the last five seasons.	52.5
76	Season call nowcast: expected curtailment	WELLMAN DITCH, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~135 of 214 season days from the basin's administration record. Dominant caller HIGHLAND SOUTH SIDE DITCH: P(call by Jun 15) = 0 over 5 comparable seasons.	73.2
70	Season call nowcast: expected curtailment	WELLMAN DITCH, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~135 of 214 season days from the basin's administration record. Dominant caller HIGHLAND SOUTH SIDE DITCH: P(call by Jun 15) = 0 over 5 comparable seasons.	73.2
68	Drought reliability cliff	WELLMAN DITCH: modeled irrigation-season reliability 87% in median years → 53% dry → 37% severe drought (2002-class replay). A 50-point cliff under stress.	75.3
66	Critical call exposure	WELLMAN DITCH (1999 priority) carries 925.1 day-equivalents of observed call exposure from 28 senior caller(s); dominant caller BOULDER WHITE ROCK DITCH (201.1 day-eq). 691 season-days curtailed in the last five seasons.	53.9
62	Drought reliability cliff	WELLMAN DITCH: modeled irrigation-season reliability 87% in median years → 53% dry → 37% severe drought (2002-class replay). A 50-point cliff under stress.	75.3
49	Drought reliability cliff	WELLMAN DITCH: modeled irrigation-season reliability 84% in median years → 48% dry → 30% severe drought (2002-class replay). A 54-point cliff under stress.	80.4

7 · Verify before closingthe transaction-specific evidence checklist

resolve right ownership: best evidence is probable — county deed research + company records required
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