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

SOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR

WDID 2302903Water Right Dependency Report · generated from release evidence · 2026-08-02
Decreed
100.9 cfs
18 right(s) · senior 1877-06-01
Median reliability
84%
severe: 62%
Observed callers
6
dominant: EVANS NO 2 DITCH
Served land
0 parcels
$0 assessed
Active signals
20
0 entitlement gap(s)
1 · What it isdecree components and legal genealogy
RightPriorityAmountUsesStatus
2302903-10014.000001877-06-01 (admin 10014.00000)4.2 cfs12345678AQAbsolute
2302903-10044.000001877-07-01 (admin 10044.00000)5.7 cfs12345678AQAbsolute
2302903-10727.000001879-05-15 (admin 10727.00000)0.8 cfs12345678AQAbsolute
2302903-11110.000001880-06-01 (admin 11110.00000)2.8 cfs12345678AQAbsolute
2302903-11597.000001881-10-01 (admin 11597.00000)35.8 cfs12345678AQAbsolute
2302903-11839.000001882-05-31 (admin 11839.00000)9.6 cfs12345678AQAbsolute
2302903-11946.000001882-09-15 (admin 11946.00000)4.9 cfs12345678AQAbsolute
2302903-12707.000001884-10-15 (admin 12707.00000)10.5 cfs12345678AQAbsolute
2302903-14536.081881872-06-01 (admin 14536.08188)0.94 cfs12345678AQAbsolute
2302903-14536.085221873-05-01 (admin 14536.08522)0.94 cfs12345678AQAbsolute
2302903-14536.085531873-06-01 (admin 14536.08553)0.94 cfs12345678AQAbsolute
2302903-14536.096491876-06-01 (admin 14536.09649)0.94 cfs12345678AQAbsolute
2302903-14536.099831877-05-01 (admin 14536.09983)0.54 cfs12345678AQAbsolute
2302903-8932.000001874-06-15 (admin 8932.00000)1.2 cfs12345678AQAbsolute
2302903-9282.000001875-05-31 (admin 9282.00000)5.3 cfs12345678AQAbsolute
2302903-9693.000001876-07-15 (admin 9693.00000)1.1 cfs12345678AQAbsolute
2302903-9709.000001876-07-31 (admin 9709.00000)5 cfs12345678AQAbsolute
2302903-9997.000001877-05-15 (admin 9997.00000)9.7 cfs12345678AQAbsolute
2 · How it has performedbeneficial-use evidence, honestly classified
water quality composite
0.69
3 · What it depends on & who controls its riverobserved call causality + supply support
EVANS NO 2 DITCH
3823.2 day-eq · 3348 episodes / 30 seasons · last 2026 · conf 0.98
WESTERN MUTUAL DITCH
1837.8 day-eq · 1548 episodes / 18 seasons · last 2026 · conf 0.98
LOWER LATHAM DITCH
1553.5 day-eq · 793 episodes / 17 seasons · last 2026 · conf 0.98
STRONTIA SPRINGS DIVERSION DAM
824.7 day-eq · 203 episodes / 3 seasons · last 2026 · conf 0.56
LOWER PLATTE BEAVER D
720.1 day-eq · 1054 episodes / 28 seasons · last 2026 · conf 0.98
FT MORGAN CANAL
690.6 day-eq · 834 episodes / 27 seasons · last 2026 · conf 0.98
owner evidence
CITY OF AURORA · corroborated (0.72)
owner evidence
CITY OF AURORA · corroborated (0.72)
owner evidence
CITY OF AURORA · corroborated (0.72)
owner evidence
CITY OF AURORA · corroborated (0.72)
4 · What happens under stressempirical administration replay + season nowcast
median year
84% seasonal reliability
severe drought (2002-class)
62% seasonal reliability
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
74Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1881 priority) carries 573.1 day-equivalents of observed call exposure from 25 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 471 season-days curtailed in the last five seasons.48.6
67Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1884 priority) carries 851.5 day-equivalents of observed call exposure from 36 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 706 season-days curtailed in the last five seasons.52.8
67Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1882 priority) carries 671.9 day-equivalents of observed call exposure from 27 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 560 season-days curtailed in the last five seasons.50.1
66Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1877 priority) carries 489 day-equivalents of observed call exposure from 20 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 411 season-days curtailed in the last five seasons.46.5
66Season call nowcast: expected curtailmentSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~98 of 214 season days from the basin's administration record. Dominant caller EVANS NO 2 DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.79.4
66Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1882 priority) carries 721.2 day-equivalents of observed call exposure from 31 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 596 season-days curtailed in the last five seasons.50.8
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1877 priority) carries 489 day-equivalents of observed call exposure from 20 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 411 season-days curtailed in the last five seasons.46.5
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1880 priority) carries 562.5 day-equivalents of observed call exposure from 25 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 470 season-days curtailed in the last five seasons.48.4
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1877 priority) carries 489 day-equivalents of observed call exposure from 20 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 411 season-days curtailed in the last five seasons.46.5
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1873 priority) carries 1,304.6 day-equivalents of observed call exposure from 43 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 1035 season-days curtailed in the last five seasons.59.6
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1876 priority) carries 1,304.6 day-equivalents of observed call exposure from 43 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 1035 season-days curtailed in the last five seasons.59.6
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1872 priority) carries 1,304.6 day-equivalents of observed call exposure from 43 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 1035 season-days curtailed in the last five seasons.59.6
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1873 priority) carries 1,304.6 day-equivalents of observed call exposure from 43 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 1035 season-days curtailed in the last five seasons.59.6
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1879 priority) carries 559.4 day-equivalents of observed call exposure from 24 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 465 season-days curtailed in the last five seasons.48.4
65Critical call exposureSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR (1877 priority) carries 1,304.6 day-equivalents of observed call exposure from 43 senior caller(s); dominant caller EVANS NO 2 DITCH (212.4 day-eq). 1035 season-days curtailed in the last five seasons.59.6
58Season call nowcast: expected curtailmentSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~104 of 214 season days from the basin's administration record. Dominant caller EVANS NO 2 DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.81.3
58Season call nowcast: expected curtailmentSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~91 of 214 season days from the basin's administration record. Dominant caller EVANS NO 2 DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.77.1
58Season call nowcast: expected curtailmentSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR, 2026 season outlook: Apr 1 SWE 61% of median → severe-class year; expected curtailment ~99 of 214 season days from the basin's administration record. Dominant caller EVANS NO 2 DITCH: P(call by Jun 15) = 1 over 6 comparable seasons.79.7
56Augmentation condition not verifiedSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR: 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.63.6
53Augmentation condition not verifiedSOUTH PLATTE RIVER ABOVE SPINNEY RESERVOIR: 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.59.2
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