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

WELLMAN DITCH

spine entity 08e34467-9b65-4286-b2a2-a33130067ddcWDID 0600557dependency report →
Active signals
3
8 instances
Max priority
82.1
Last observed
2026-09-30
Signal historyall resolved detections on this record
PriSignalDetailScoreObserved
82Critical call exposureWELLMAN 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.52.52026-09-30 00:00:00
77Critical call exposureWELLMAN 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.52.52026-09-30 00:00:00
76Season call nowcast: expected curtailmentWELLMAN 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.73.22026-07-18 12:00:00
70Season call nowcast: expected curtailmentWELLMAN 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.73.22026-07-18 12:00:00
68Drought reliability cliffWELLMAN DITCH: modeled irrigation-season reliability 87% in median years → 53% dry → 37% severe drought (2002-class replay). A 50-point cliff under stress.75.32026-07-18 12:00:00
66Critical call exposureWELLMAN 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.53.92026-09-30 00:00:00
62Drought reliability cliffWELLMAN DITCH: modeled irrigation-season reliability 87% in median years → 53% dry → 37% severe drought (2002-class replay). A 50-point cliff under stress.75.32026-07-18 12:00:00
49Drought reliability cliffWELLMAN DITCH: modeled irrigation-season reliability 84% in median years → 48% dry → 30% severe drought (2002-class replay). A 54-point cliff under stress.80.42026-07-18 12:00:00
Record payload
wdid
0600557
state
CO
county
BOULDER
admin_no
24868
division
1
latitude
40.011006
right_id
0600557-24868.00000
longitude
-105.258253
county_fips
08013
identifiers
{"wdid":"0600557"}
decreed_uses
0
legal_status
Absolute
water_source
BOULDER CREEK
seniority_rank
9684
structure_name
WELLMAN DITCH
structure_type
DITCH
water_district
6
decreed_rate_cfs
70
score_components
{"callers":25,"recency":1,"exposure_depth":0.21,"day_equivalents":834.6,"dominant_caller":"HIGHLAND SOUTH SIDE DITCH","season_days_5yr":626}
decreed_volume_af
null
appropriation_date
1918-02-01
Structure & decree profile
structure
WELLMAN DITCH (WDID 0600557)
type / source
DITCH · BOULDER CREEK
administration
Division 1 · Water District 6 · BOULDER County
decreed rights
3 · senior priority 1917-03-08 (admin 24538.00000)
decreed capacity
120 cfs
status
Absolute
Controlling senior callers (observed)
BOULDER WHITE ROCK DITCH
487.9 day-equivalents · 423 episodes over 23 seasons · last 2026 · confidence 0.98
HIGHLAND SOUTH SIDE DITCH
430.5 day-equivalents · 102 episodes over 13 seasons · last 2025 · confidence 0.98
NORTH BOULDER FARMERS DITCH
309.9 day-equivalents · 249 episodes over 22 seasons · last 2026 · confidence 0.98
LEGGETT DITCH
304.2 day-equivalents · 264 episodes over 22 seasons · last 2026 · confidence 0.98
FARMERS DITCH
248.4 day-equivalents · 129 episodes over 15 seasons · last 2026 · confidence 0.98
Dependencies & control
owner evidence
XCEL ENERGY · probable (0.55) · CDSS structure associated contacts
owner evidence
XCEL ENERGY · probable (0.55) · CDSS structure associated contacts
owner evidence
XCEL ENERGY · probable (0.55) · CDSS structure associated contacts