BasinWise — Dependency & Reliability Intelligencerelease v1 · genome v1 · run run_water_rights_v133 signals92,201 instances
Overview / Signals / Critical call exposure / siginst_ep_wr_20260718_call-exposure-critical_4303

Critical call exposure

verifiedBOULDER LEFT HAND DITCH

BOULDER LEFT HAND DITCH (1947 priority) carries 899.6 day-equivalents of observed call exposure from 26 senior caller(s); dominant caller BOULDER WHITE ROCK DITCH (201.1 day-eq). 691 season-days curtailed in the last five seasons.

Priority
77.1
composite 0–100
Raw score
53.5
detector output 0–100
Confidence
0.98
0–1
Observed
2026-09-30
00:00:00
Priority componentsweights: impact .30 · urgency .25 · confidence .20 · freshness .15 · novelty .10
impact0.42
urgency1.00
confidence0.98
freshness1.00
novelty0.50
Record payloadcustomer_payload — everything the detector carried
wdid
0600513
state
CO
county
BOULDER
admin_no
35731
division
1
latitude
40.015049
right_id
0600513-35731.00000
longitude
-105.278716
county_fips
08013
identifiers
{"wdid":"0600513"}
decreed_uses
0
legal_status
Absolute
water_source
BOULDER CREEK
seniority_rank
15018
structure_name
BOULDER LEFT HAND DITCH
structure_type
DITCH
water_district
6
decreed_rate_cfs
50
score_components
{"callers":26,"recency":1,"exposure_depth":0.22,"day_equivalents":899.6,"dominant_caller":"BOULDER WHITE ROCK DITCH","season_days_5yr":691}
decreed_volume_af
null
appropriation_date
1947-10-30
Provenance receiptexactly where this detection came from
instance id
siginst_ep_wr_20260718_call-exposure-critical_4303
record
0600513-35731.00000 @ water_rights
signal
signal:call-exposure-critical
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
2026-09-30 00:00:00
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
85Critical call exposureBOULDER LEFT HAND DITCH (1873 priority) carries 738.4 day-equivalents of observed call exposure from 16 senior caller(s); dominant caller HIGHLAND SOUTH SIDE DITCH (143.5 day-eq). 524 season-days curtailed in the last five seasons.51.1
80Season call nowcast: expected curtailmentBOULDER LEFT HAND DITCH, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~115 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.66.8
71Water-backed land assemblageCOUNTY OF BOULDER holds 18 parcels totaling 782 ac (assessed $84.9M) under BOULDER LEFT HAND DITCH — a water-backed assemblage on one system (supply quality 0.79). assessor roll from annual OIT data call; ownership may be up to 12 months stale.100.0
70Season call nowcast: expected curtailmentBOULDER LEFT HAND 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 BOULDER WHITE ROCK DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.94.4
63Drought reliability cliffBOULDER LEFT HAND DITCH: modeled irrigation-season reliability 86% in median years → 50% dry → 32% severe drought (2002-class replay). A 54-point cliff under stress.80.8
52Underused water asset141.822 ac (BOULDER County, COUNTY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
51Underused water asset118.249 ac (BOULDER County, COUNTY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
49Underused water asset95.939 ac (BOULDER County, FALK SUSAN E & THOMAS E): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
49Parcel-split allocation riskIrrigated place D1-2020-10505660 (105 ac, GRASS_PASTURE, served by BOULDER LEFT HAND DITCH) now spans 9 parcels held by 4 owner(s) — 9 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.100.0
48Underused water asset79.176 ac (BOULDER County, WINTER FAMILY FARM LLC): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
48Underused water asset78.429 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
48Underused water asset78.183 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
47Underused water asset72.037 ac (BOULDER County, COUNTY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
47Parcel-split allocation riskIrrigated place D1-2020-10501437 (75 ac, GRASS_PASTURE, served by BOULDER LEFT HAND DITCH) now spans 3 parcels held by 3 owner(s) — 3 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.98.5
47Underused water asset65.622 ac (BOULDER County, COUNTY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
47Underused water asset64.73 ac (BOULDER County, COUNTY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
46Parcel-split allocation riskIrrigated place D1-2020-10602132 (65 ac, CORN, served by BOULDER LEFT HAND 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.89.3
46Underused water asset60.84 ac (BOULDER County, SCHLAGEL JOHN M): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
46Underused water asset53.686 ac (BOULDER County, FLAUAUS LIVING TRUST): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Parcel-split allocation riskIrrigated place D1-2020-10500256 (46 ac, ALFALFA, served by BOULDER LEFT HAND DITCH) now spans 3 parcels held by 1 owner(s) — 3 parcel(s) show NO entitlement instrument of their own. The land split; the water paper didn't.97.9
45Underused water asset43.706 ac (BOULDER County, WILD VIEW FARM LLC): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Parcel-split allocation riskIrrigated place D1-2020-10504620 (43 ac, ALFALFA, served by BOULDER LEFT HAND 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
45Underused water asset41.088 ac (BOULDER County, COUNTY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset39.16 ac (BOULDER County, SPENCER TRACY M): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset39.197 ac (BOULDER County, SCHNEIDER KEVIN AND ROBIN LIVING TRUST): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset39.153 ac (BOULDER County, HANKS FRANK & JOANN LIVING TRUST): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset39.194 ac (BOULDER County, NIWOT SANITATION DISTRICT): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset38.696 ac (BOULDER County, WILD VIEW FARM LLC): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset38.303 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset37.577 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset36.546 ac (BOULDER County, CITO 6041 LLC): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset36.0524 ac (BOULDER County, VLASIC JOHN DAVID ET AL): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset35.714 ac (BOULDER County, MCCARTHY STEVEN J): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
45Underused water asset35.4525 ac (BOULDER County, COUNTY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
44Underused water asset35.162 ac (BOULDER County, ROCKY MOUNTAIN CHRISTIAN CHURCH): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
44Underused water asset35.06 ac (BOULDER County, BRUNNER PATRICIA H): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
44Parcel-split allocation riskIrrigated place D1-2020-10505649 (32 ac, WHEAT_FALL, served by BOULDER LEFT HAND 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.88.6
44Underused water asset34.261 ac (BOULDER County, HARBERT ROGER K & JOANNE S): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
44Parcel-split allocation riskIrrigated place D1-2020-10503726 (32 ac, SMALL_GRAINS, served by BOULDER LEFT HAND 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.88.6
44Underused water asset34.119 ac (BOULDER County, SPENCER TRACY M): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
44Underused water asset33.954 ac (BOULDER County, CHESEBRO TIM): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
44Underused water asset33.765 ac (BOULDER County, SPENCER TRACY M): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
44Underused water asset33.284 ac (BOULDER County, CITY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
44Parcel-split allocation riskIrrigated place D1-2020-10504619 (30 ac, GRASS_PASTURE, served by BOULDER LEFT HAND 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.88.6
44Parcel-split allocation riskIrrigated place D1-2020-10505219 (30 ac, ALFALFA, served by BOULDER LEFT HAND 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.88.6
44Parcel-split allocation riskIrrigated place D1-2020-10513855 (28 ac, ALFALFA, served by BOULDER LEFT HAND 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.88.6
44Underused water asset29.799 ac (BOULDER County, PADGETT FAMILY TRUST): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
44Underused water asset29.586 ac (BOULDER County, WORTMAN JOANNE R): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8
44Parcel-split allocation riskIrrigated place D1-2020-10511259 (25 ac, SMALL_GRAINS, served by BOULDER LEFT HAND 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 asset28.325 ac (BOULDER County, COUNTY OF BOULDER): mapped irrigation ended 2020 — 6 years idle — while senior physical service on BOULDER LEFT HAND DITCH still attaches. Idle water on idle ground.77.8