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

EAST BOULDER DITCH

spine entity b7654c20-bba4-49b5-a19f-854fc178b59eWDID 0600575dependency report →
Active signals
4
24 instances
Max priority
94.6
Last observed
2026-09-30
Signal historyall resolved detections on this record
PriSignalDetailScoreObserved
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.53.42026-09-30 00:00:00
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.53.42026-09-30 00:00:00
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.100.02026-07-18 12:00:00
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.100.02026-07-18 12:00:00
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.98.72026-07-18 12:00:00
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.98.72026-07-18 12:00:00
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.51.42026-09-30 00:00:00
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.53.22026-09-30 00:00:00
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.85.02026-07-18 12:00:00
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.76.42026-07-18 12:00:00
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.100.02026-07-18 12:00:00
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.95.62026-07-18 12:00:00
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.77.42026-07-18 12:00:00
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.50.02026-09-30 00:00:00
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.50.02026-09-30 00:00:00
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.49.72026-09-30 00:00:00
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.48.22026-09-30 00:00:00
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.50.52026-09-30 00:00:00
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.47.82026-09-30 00:00:00
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.59.52026-07-18 12:00:00
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.59.52026-07-18 12:00:00
48Drought reliability cliffEAST BOULDER DITCH: modeled irrigation-season reliability 86% in median years → 48% dry → 35% severe drought (2002-class replay). A 51-point cliff under stress.76.12026-07-18 12:00:00
47Drought reliability cliffEAST BOULDER DITCH: modeled irrigation-season reliability 87% in median years → 51% dry → 40% severe drought (2002-class replay). A 46-point cliff under stress.69.62026-07-18 12:00:00
47Drought reliability cliffEAST BOULDER DITCH: modeled irrigation-season reliability 87% in median years → 51% dry → 40% severe drought (2002-class replay). A 46-point cliff under stress.69.62026-07-18 12:00:00
Record payload
wdid
0600575
state
CO
county
BOULDER
admin_no
29219
division
1
latitude
39.995856
right_id
0600575-29219.00000
longitude
-105.216399
county_fips
08013
identifiers
{"wdid":"0600575"}
decreed_uses
0
legal_status
Absolute
water_source
SOUTH BOULDER CREEK
seniority_rank
11315
structure_name
EAST BOULDER DITCH
structure_type
DITCH
water_district
6
decreed_rate_cfs
127.2
score_components
{"callers":22,"recency":1,"exposure_depth":0.22,"day_equivalents":893.2,"dominant_caller":"COMMUNITY DITCH","season_days_5yr":713}
decreed_volume_af
null
appropriation_date
1929-12-31
Structure & decree profile
structure
EAST BOULDER DITCH (WDID 0600575)
type / source
DITCH · SOUTH BOULDER CREEK
administration
Division 1 · Water District 6 · BOULDER County
decreed rights
13 · senior priority 1863-12-31 (admin 20890.05113)
decreed capacity
405 cfs
status
Absolute
Controlling senior callers (observed)
S BOULDER BEAR CR DITCH
1,416.8 day-equivalents · 528 episodes over 20 seasons · last 2026 · confidence 0.98
HOWARD DITCH
1,264.9 day-equivalents · 260 episodes over 14 seasons · last 2024 · confidence 0.98
MCGINN DITCH
875.2 day-equivalents · 268 episodes over 13 seasons · last 2025 · confidence 0.98
LEYNER COTTONWOOD DITCH
702.9 day-equivalents · 554 episodes over 21 seasons · last 2026 · confidence 0.98
COTTONWOOD DITCH 2
644.6 day-equivalents · 418 episodes over 21 seasons · last 2026 · confidence 0.98
Dependencies & control
owner evidence
EAST BOULDER DITCH CO · corroborated (0.72) · CDSS structure associated contacts
owner evidence
EAST BOULDER DITCH CO · corroborated (0.72) · CDSS structure associated contacts
owner evidence
EAST BOULDER DITCH CO · corroborated (0.72) · CDSS structure associated contacts