BasinWise — Dependency & Reliability Intelligencerelease v1 · genome v1 · run run_water_rights_v133 signals92,201 instances
Overview / structure / dependency report

EAST BOULDER DITCH

WDID 0600575Water Right Dependency Report · generated from release evidence · 2026-07-30
Decreed
405.0 cfs
13 right(s) · senior 1863-12-31
Median reliability
98%
severe: 95%
Observed callers
6
dominant: S BOULDER BEAR CR DITCH
Served land
0 parcels
$0 assessed
Active signals
20
0 entitlement gap(s)
1 · What it isdecree components and legal genealogy
RightPriorityAmountUsesStatus
0600575-20890.051131863-12-31 (admin 20890.05113)64 cfs0Absolute
0600575-22302.000001911-01-23 (admin 22302.00000)64 cfs0Absolute
0600575-27930.266111922-11-10 (admin 27930.26611)127.2 cfs0Absolute
0600575-29219.000001929-12-31 (admin 29219.00000)127.2 cfs0Absolute
0600575-3774.000001860-05-01 (admin 3774.00000)— AF1458QAbsolute
0600575-4474.000001862-04-01 (admin 4474.00000)20.901 cfs1Absolute
0600575-5235.000001864-05-01 (admin 5235.00000)1.69 cfs124678AQAbsolute
0600575-5511.000001865-02-01 (admin 5511.00000)— AF012345678QAbsolute
0600575-5570.000001865-04-01 (admin 5570.00000)— AF1234568QAbsolute
0600575-5935.000001866-04-01 (admin 5935.00000)— AF1234568QAbsolute
0600575-7585.000001870-10-07 (admin 7585.00000)— AF1234568QAbsolute
0600575-8141.000001872-04-15 (admin 8141.00000)— AF123458QAbsolute
0600575-8553.000001873-06-01 (admin 8553.00000)— AF123458QAbsolute
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
S BOULDER BEAR CR DITCH
1416.8 day-eq · 528 episodes / 20 seasons · last 2026 · conf 0.98
HOWARD DITCH
1264.9 day-eq · 260 episodes / 14 seasons · last 2024 · conf 0.98
MCGINN DITCH
875.2 day-eq · 268 episodes / 13 seasons · last 2025 · conf 0.98
LEYNER COTTONWOOD DITCH
702.9 day-eq · 554 episodes / 21 seasons · last 2026 · conf 0.98
COTTONWOOD DITCH 2
644.6 day-eq · 418 episodes / 21 seasons · last 2026 · conf 0.98
SCHEARER DITCH
627.6 day-eq · 288 episodes / 15 seasons · last 2026 · conf 0.98
owner evidence
EAST BOULDER DITCH CO · corroborated (0.72)
owner evidence
EAST BOULDER DITCH CO · corroborated (0.72)
owner evidence
EAST BOULDER DITCH CO · corroborated (0.72)
owner evidence
EAST BOULDER DITCH CO · corroborated (0.72)
as a caller
impairs 473 rights · 18158.5 day-eq administered
4 · What happens under stressempirical administration replay + season nowcast
median year
98% seasonal reliability
severe drought (2002-class)
95% seasonal reliability
2026 season nowcast
Apr 1 SWE 61% of median → severe-class year
call timing
P(call by Jun 15) = 0 · P(any call) = 0.5 · expected first call ~day 224
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)
ParcelOwner (assessor)AcresAssessedCoverageEntitlementDeed posture
6 · What can impair it — active signalsevery detection on this structure, its rights, and its land
PriSignalDetailScore
95Critical call exposureEAST BOULDER DITCH (1922 priority) carries 893.2 day-equivalents of observed call exposure from 22 senior caller(s); dominant caller COMMUNITY DITCH (142.6 day-eq). 713 season-days curtailed in the last five seasons.53.4
95Critical call exposureEAST BOULDER DITCH (1929 priority) carries 893.2 day-equivalents of observed call exposure from 22 senior caller(s); dominant caller COMMUNITY DITCH (142.6 day-eq). 713 season-days curtailed in the last five seasons.53.4
85Season call nowcast: expected curtailmentEAST BOULDER DITCH, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~180 of 214 season days from the basin's administration record. Dominant caller COMMUNITY DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.100.0
85Season call nowcast: expected curtailmentEAST BOULDER DITCH, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~180 of 214 season days from the basin's administration record. Dominant caller COMMUNITY DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.100.0
82Drought reliability cliffEAST BOULDER DITCH: modeled irrigation-season reliability 82% in median years → 34% dry → 16% severe drought (2002-class replay). A 66-point cliff under stress.98.7
82Drought reliability cliffEAST BOULDER DITCH: modeled irrigation-season reliability 82% in median years → 34% dry → 16% severe drought (2002-class replay). A 66-point cliff under stress.98.7
81Critical call exposureEAST BOULDER DITCH (1911 priority) carries 878.9 day-equivalents of observed call exposure from 20 senior caller(s); dominant caller COMMUNITY DITCH (142.6 day-eq). 712 season-days curtailed in the last five seasons.53.2
81Critical call exposureEAST BOULDER DITCH (1863 priority) carries 757.8 day-equivalents of observed call exposure from 17 senior caller(s); dominant caller S BOULDER BEAR CR DITCH (128.8 day-eq). 609 season-days curtailed in the last five seasons.51.4
79Augmentation condition not verifiedEAST BOULDER DITCH: 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.85.0
74Season call nowcast: expected curtailmentEAST BOULDER DITCH, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~175 of 214 season days from the basin's administration record. Dominant caller COMMUNITY DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.100.0
74Season call nowcast: expected curtailmentEAST BOULDER DITCH, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~145 of 214 season days from the basin's administration record. Dominant caller S BOULDER BEAR CR DITCH: P(call by Jun 15) = 0 over 5 comparable seasons.76.4
71Drought reliability cliffEAST BOULDER DITCH: modeled irrigation-season reliability 82% in median years → 35% dry → 18% severe drought (2002-class replay). A 64-point cliff under stress.95.6
66Drought reliability cliffEAST BOULDER DITCH: modeled irrigation-season reliability 84% in median years → 42% dry → 32% severe drought (2002-class replay). A 52-point cliff under stress.77.4
66Critical call exposureEAST BOULDER DITCH (1866 priority) carries 643.6 day-equivalents of observed call exposure from 12 senior caller(s); dominant caller S BOULDER BEAR CR DITCH (128.8 day-eq). 509 season-days curtailed in the last five seasons.49.7
66Critical call exposureEAST BOULDER DITCH (1872 priority) carries 665 day-equivalents of observed call exposure from 13 senior caller(s); dominant caller S BOULDER BEAR CR DITCH (128.8 day-eq). 522 season-days curtailed in the last five seasons.50.0
66Critical call exposureEAST BOULDER DITCH (1873 priority) carries 701.8 day-equivalents of observed call exposure from 15 senior caller(s); dominant caller S BOULDER BEAR CR DITCH (128.8 day-eq). 568 season-days curtailed in the last five seasons.50.5
66Critical call exposureEAST BOULDER DITCH (1865 priority) carries 543.2 day-equivalents of observed call exposure from 10 senior caller(s); dominant caller S BOULDER BEAR CR DITCH (128.8 day-eq). 433 season-days curtailed in the last five seasons.48.2
66Critical call exposureEAST BOULDER DITCH (1870 priority) carries 665 day-equivalents of observed call exposure from 13 senior caller(s); dominant caller S BOULDER BEAR CR DITCH (128.8 day-eq). 522 season-days curtailed in the last five seasons.50.0
66Critical call exposureEAST BOULDER DITCH (1865 priority) carries 526.3 day-equivalents of observed call exposure from 9 senior caller(s); dominant caller S BOULDER BEAR CR DITCH (128.8 day-eq). 419 season-days curtailed in the last five seasons.47.8
53Augmentation condition not verifiedEAST BOULDER DITCH: 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
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