j2 regulating reservoir concept cnppid diversion platte river j2 return j2 j2 regulating reservoir...

J2 Regulating Reservoir Project

J2 REGULATING RESERVOIR CONCEPT

CNPPID Diversion

Platte River

J2 Return

J2

J2 Regulating Reservoir

Phelps County Canal

J2 Reservoir PurposeRegulate J2 Hydro Releases Beneficially manage reservoir releases for

the project participants

Important Project PointsProject will not create “NEW” waterProject will not affect Supply Canal

diversionsProject will not affect irrigation deliveriesMinor changes to Supply Canal operations

J2 Hydro timingJohnson Lake operations

No planned recreational benefits

ParticipantsPlatte River Recovery Implementation Program

Nebraska Department of Natural ResourcesTwin Platte NRDTri-Basin NRDCentral Platte NRD

Central Nebraska Public Power and Irrigation District

LocationNorthwest Phelps CountyDownstream of J2 Hydropower PlantBetween the Phelps Canal and Platte River

BERTRAND HWY

RIVER ROAD

Preliminary Design2 cells1,000 land acres15,000 acre feet capacityClay liner and drainsSoil cement slope protectionInlets on Phelps CanalOutlets to Platte River

OperationsCNPPID will be owner/operatorRoute water to reservoirs through Phelps

CanalRegulate J2 Hydro releases

Retime excess flowsRiver fluctuationsIrrigation demand

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J2 Return Flow to the Platte RiverCurrent and Future Operations

Without Regulation With Regulation

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ScheduleCompleted work

Many years of study and investigations2+ years of feasibility-level design workOperating agreement signed in July 2013

Moving forward2-3 years of design and permitting2 years of construction starting in 2015-2016

Funding$75 million estimated cost

CNPPID pays 5%, up to $2.5 millionRemainder is split

PRRIP 75% NDNR 25%

Project BenefitsCNPPID

Increased generation efficiencySmooth river fluctuations

PRRIPReduction to target flow shortagesShort Duration High Flow (SDHF) events

NDNROffset for post 1997 groundwater depletions to

stream flows

Address New Activities State and Federal Depletion Plans

Address Existing Activities Reduce deficits to USFWS Target Flows

Flows for testing river management strategies Assists in Short Duration High Flow

(SDHF) J2 Regulating Reservoir works

toward all three

Program’s Water Plan

Addressing New Activities

3 States and Federal Depletions Plans Handles post 1997 depletions

Not counted toward the Program’s water action plan goals – replacing impacts from new activities

Addressing Existing Activities

Reducing Deficits to FWS Target Flows by average annual of 130,000 to 150,000 AFY

Handles depletions existing before 1997

3 Initial Projects:Tamarack I (CO), Pathfinder Modification (WY), andLake McConaughy Environmental Account (NE)

credited 80,000 AFYNew water conservation/supply projects

need 50,000 to 70,000 AFY

USFWS Target Flows and Retiming Excesses

Retime excesses Storage

Acquire by lease or purchase Transfer from agricultural use to environmental use

Water Management Incentives Reduce CU and increase return flows

Water Acquisition

Questions?