BasinWise — Dependency & Reliability Intelligencerelease v1 · genome v1 · run run_water_rights_v133 signals92,201 instances
Overview / Signals / Drought reliability cliff / siginst_ep_wr_20260718_drought-reliability-cliff_2933

Drought reliability cliff

candidateGREEN DITCH

GREEN DITCH: modeled irrigation-season reliability 84% in median years → 48% dry → 30% severe drought (2002-class replay). A 54-point cliff under stress.

Priority
49.3
composite 0–100
Raw score
80.3
detector output 0–100
Confidence
0.72
0–1
Observed
2026-07-18
12:00:00
Priority componentsweights: impact .30 · urgency .25 · confidence .20 · freshness .15 · novelty .10
impact0.05
urgency0.76
confidence0.72
freshness0.55
novelty0.60
Record payloadcustomer_payload — everything the detector carried
wdid
0600528
state
CO
county
BOULDER
admin_no
55827
division
1
latitude
40.03632
right_id
0600528-55827.00000
longitude
-105.205778
county_fips
08013
identifiers
{"wdid":"0600528"}
decreed_uses
56W
legal_status
Absolute
water_source
BOULDER CREEK
seniority_rank
42382
structure_name
GREEN DITCH
structure_type
DITCH
water_district
6
decreed_rate_cfs
null
score_components
{"method":"empirical call replay by intensity-classed years","cliff_points":54,"years_observed":37,"reliability_dry":0.48,"reliability_median":0.84,"reliability_severe":0.3}
decreed_volume_af
null
appropriation_date
2002-11-06
Provenance receiptexactly where this detection came from
instance id
siginst_ep_wr_20260718_drought-reliability-cliff_2933
record
0600528-55827.00000 @ water_rights
signal
signal:drought-reliability-cliff
definition
v1
genome
v1 · run run_water_rights_v1
epoch
ep_wr_20260718
lineage status
resolved
detected
2026-07-18 12:00:00
valid from
2026-07-18 12:00:00
source refs
["cdss-structures","cdss-netamounts","cdss-admin-calls","cdss-divrec","co-oit-parcels","nrcs-snotel","openet","water-court-outcomes","ditch-ledger-program"]
Co-firing signalsother detections on this record
PriSignalDetailScore
88Critical caller value-at-riskGREEN DITCH's observed call reaches 389 parcels — 5,392 coverage-weighted acres, $189.7M assessed value, 230 distinct owners — through the 6 structures it has put out of priority (44,506.5 day-equivalents, most recently 2026).100.0
71Water-backed land assemblageCITY OF BOULDER holds 18 parcels totaling 1,636 ac (assessed $100.4M) under GREEN DITCH — a water-backed assemblage on one system (supply quality 0.78). assessor roll from annual OIT data call; ownership may be up to 12 months stale.100.0
66Underused water asset324.9299 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
66Critical call exposureGREEN DITCH (2002 priority) carries 859.6 day-equivalents of observed call exposure from 27 senior caller(s); dominant caller BOULDER WHITE ROCK DITCH (201.1 day-eq). 632 season-days curtailed in the last five seasons.52.9
60Underused water asset240.934 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
59Underused water asset228.084 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
53Augmentation condition not verifiedGREEN 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
51Parcel-split allocation riskIrrigated place D1-2020-10600158 (146 ac, GRASS_PASTURE, served by GREEN DITCH) now spans 11 parcels held by 3 owner(s) — 11 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.100.0
50Underused water asset107.372 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
49Underused water asset94.46 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
49Parcel-split allocation riskIrrigated place D1-2020-10605693 (106 ac, GRASS_PASTURE, served by GREEN DITCH) now spans 4 parcels held by 3 owner(s) — 4 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.100.0
48Underused water asset86.703 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
48Underused water asset76.197 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
47Underused water asset73.829 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
47Parcel-split allocation riskIrrigated place D1-2020-10603584 (76 ac, GRASS_PASTURE, served by GREEN DITCH) now spans 2 parcels held by 1 owner(s) — 2 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.89.5
46Parcel-split allocation riskIrrigated place D1-2020-10613955 (67 ac, GRASS_PASTURE, served by GREEN DITCH) now spans 5 parcels held by 4 owner(s) — 5 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.100.0
46Parcel-split allocation riskIrrigated place D1-2020-10600790 (62 ac, GRASS_PASTURE, served by GREEN DITCH) now spans 2 parcels held by 1 owner(s) — 2 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.89.2
46Underused water asset53.137 ac (BOULDER County, COUNTY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
46Parcel-split allocation riskIrrigated place D1-2020-10604912 (50 ac, ALFALFA, served by GREEN DITCH) now spans 3 parcels held by 2 owner(s) — 3 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.98.0
45Underused water asset47.602 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
45Underused water asset46.977 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
45Underused water asset38.803 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
45Parcel-split allocation riskIrrigated place D1-2020-10605689 (35 ac, GRASS_PASTURE, served by GREEN DITCH) now spans 3 parcels held by 2 owner(s) — 3 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.97.7
44Underused water asset34.547 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
44Underused water asset33.857 ac (BOULDER County, BOULDER MUNICIPAL PROPERTY AUTHORITY): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
44Parcel-split allocation riskIrrigated place D1-2020-10605695 (23 ac, GRASS_PASTURE, served by GREEN DITCH) now spans 2 parcels held by 2 owner(s) — 2 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.88.5
44Underused water asset24.674 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
43Parcel-split allocation riskIrrigated place D1-2020-10604915 (14 ac, GRASS_PASTURE, served by GREEN DITCH) now spans 2 parcels held by 2 owner(s) — 2 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.88.3
43Underused water asset17.396 ac (BOULDER County, BOULDER MUNICIPAL PROPERTY AUTHORITY): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
43Underused water asset15.418 ac (BOULDER County, DMA HOLDINGS LLC): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
43Underused water asset14.7298 ac (BOULDER County, HINDES CAROL A): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
43Underused water asset13.143 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
43Underused water asset12.978 ac (BOULDER County, BOULDER MUNICIPAL PROPERTY AUTHORITY): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
43Underused water asset12.796 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
43Underused water asset12.1181 ac (BOULDER County, REGIONAL TRANSPORTATION DISTRICT): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
43Underused water asset9.886 ac (BOULDER County, MULLIN RONALD T): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
43Underused water asset9.836 ac (BOULDER County, DUNCAN LANE LLC): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
43Underused water asset9.707 ac (BOULDER County, ZISHKA PATRICIA A TRUST): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset7.658 ac (BOULDER County, GONZALES LIV TRST): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset6.83 ac (BOULDER County, BROWN ALEXANDER M R & LESLIE): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset6.6745 ac (BOULDER County, REGIONAL TRANSPORTATION DISTRICT): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset6.3507 ac (BOULDER County, REGIONAL TRANSPORTATION DISTRICT): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset5.419 ac (BOULDER County, ZAPPALA JOHN): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset5.084 ac (BOULDER County, BOULDER MUNICIPAL PROPERTY AUTHORITY): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset5.025 ac (BOULDER County, PONDEROSA HEIGHTS LIVING REV TRUST): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset5.067 ac (BOULDER County, EHRENREICH NANCY): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset5.001 ac (BOULDER County, ASTLEY JULIAN 2020 IRREVOCABLE TRUST ET AL): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset5.0283 ac (BOULDER County, TOYE PATRICIA S REV TRUST): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset4.9203 ac (BOULDER County, DALTON FARMS LLC): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6
42Underused water asset4.858 ac (BOULDER County, RAGAN MARK & JAMIE SHAAK): mapped irrigation ended 2020 — 6 years idle — while senior physical service on GREEN DITCH still attaches. Idle water on idle ground.77.6