Umatilla Basin Project

Umatilla Basin Project
• Phase 1
– West Extension Irrigation District (WEID)
– Terminal Ditch Company
• Phase 2
– Hermiston Irrigation District (HID)
• Cold Springs Reservoir
– Stanfield Irrigation District (SID)
• McKay Reservoir
History
• 1988- BOR files applications for Phase I.
• 1991- BOR files applications for Phase 2
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exchange with HID & SID.
WaterWatch protests phase 2 application.
Permits negotiated through mediator.
1993- Phase 1 fully operational.
1994- Phase 2 exchange with HID begins.
1999- Phase 2 partial exchange with SID begins.
Umatilla Basin Project
Phase 1 Exchange
• Water diverted from Columbia River in
exchange for Umatilla River “live flow” to
be left in the Umatilla River at Three-Mile
Dam and at Terminal Ditch Diversion.
• This is a “bucket for bucket” exchange.
McNary Dam and Phase 1 Canal.
Phase 1 pumping plant (WEPO)
Point at which Phase 1 Columbia water enters WEID Canal
Three Mile Dam on Umatilla River- right bank.
WEID Canal diversion from Three Mile Dam
Fish screen on WEID Canal nr. Three Mile Dam.
Gage station on upper WEID Canal- (WEUO)
Ramp weir and measuring bridge on WEID Canal below all pumped water.
WEID pumping station on lower Umatilla River/ Columbia
Point water pumped by WEID plant enters their canal.
Gage station at lower Umatilla River-(UMAO)
Phase 2
• HID & SID
– Columbia River water pumped to Cold Springs
Reservoir in exchange for Umatilla River “live flow”
left in the river from their diversion near Echo and
protected with HID’s 1905 priority to the mouth of the
Umatilla River.
– Columbia River water pumped to SID in exchange for
Umatilla River “live flow” and SID’s McKay Storage.
Live flow protected from SID diversion to mouth of
Umatilla with 1905 priority. Storage protected from
Dam to mouth of Umatilla River.
BOR Columbia River pumping plant – Phase 2
Phase 2 canal (Columbia River pumped water) and gage station
BOR canal delivering Columbia water into Cold Spring Res. and gage.
Hermiston Irrigation District
• HID live flow entitlement left in river for fish
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enhancement flow (exchanged), when needed.
Live flow exchange “bucket for bucket”-target
250-300 cfs, depending upon the month.
Columbia water pumped to Cold Springs after
need determined and as SID exchange water is
pumped- max. pump 240 cfs.
Maxwell Canal monitored to ensure fish water
and exchange water is protected past diversion.
Live flow available can be diverted.
USA Feed Canal Diversion nr. Echo
Fish Screens in USA Feed Canal nr. Echo
Gage station below Feed Canal on UR- (UMUO)
Gage station and weir at end of Feed Canal at Cold Springs Reservoir (FCSO)
Gage station (UMMO) and Maxwell Canal diversion
Fish Screens on Maxwell Canal nr. Hermiston
Maxwell Canal gage (MAXO), headgates and Noll Spill.
Cold Springs Dam and outlet to “A” Line Canal and gage (CSAO)
Terminus of “A” Line Canal and gage (ALTO) at Maxwell Canal
Stanfield Irrigation District
• Umatilla River “live flow” left in the Umatilla
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River for fish enhancement and protected with
1905 and/or 1965 priority from SID diversion to
the mouth.
Columbia River water pumped to SID in
exchange for live flow- “bucket for bucket”
SID’s McKay storage annual allotment used for
fish enhancement in Umatilla River, as needed.
SID is pumped water from Columbia River
(exchange). SID gets total of 34,700 acre feet
from all sources. Total of 20 year average.
Phase 2 canal (Columbia River pumped water) and gage station
Phase 2 relift pumping plant- Columbia water to SID.
Columbia water entering SID Phase 2 Canal
Furnish Canal diversion (SID) from Umatilla River
Fish screen on Furnish Canal (SID)