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Operation NEXT – The Hyperion Reuse and Resilience Program

Chris Repp, P.E., M.S.C.E.Los Angeles Department of Water and Power

December 19, 2019Santa Monica Basin GSA Briefing

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LADWP Overview

• Largest municipal utility in US• 4 million City residents• 500,000+ AFY Demand • 731,000 service connections• 7,325+ miles of pipeline• City Charter - “supply and

distribute any water owned or controlled by the City”

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LA Water Sources

LA Aqueducts

Colorado River Aqueduct

Conservation & Recycling

Delta

State Water Project

SierraMountains

Local Groundwater & Stormwater

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Groundwater Rights

Primary Groundwater Basins

San Fernando Basin 87,000 AFY

Central Basin 17,236 AFY

Sylmar Basin 3,570 AFY

West Coast Basin 1,503 AFY

LA’s Total Groundwater 109,309 AFYWEST

COAST

CENTRAL

SYLMAR

SAN FERNANDO

EAGLE ROCK

Goal: Bring back use of local basins

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MWD9%

Los Angeles Aqueduct

19%

RW NPR4%

RW GWR32%

Groundwater17%

Stormwater2%

New Conservation

17%

Fiscal Year 2034 - 35 Average HydrologyTotal Supply: 661,800 AFY

MWD59%

Los Angeles Aqueduct

27%

Recycled Water

2%

Groundwater12%

Fiscal Year End 2014 - 18 AverageTotal Production: 523,100 AFY

14% Local

72% Local

Water Supply Future

L.A.’s Green New Deal

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MWD17%

Los Angeles Aqueduct

67%

Recycled Water

2%

Groundwater14%

April 2019 - March 2020Total Supply: 532,400 AFY

MWD9%

Los Angeles Aqueduct

19%

RW NPR4%

RW GWR32%

Groundwater17%

Stormwater2%

New Conservation

17%

Fiscal Year 2034 - 35 Average HydrologyTotal Supply: 661,800 AFY

16% Local

72% Local

Water Supply Future

L.A.’s Green New Deal

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Hyperion Reuse & Water Resilience Program

Program Objective:Recycle 100% of available treated wastewater for

beneficial reuse from the Hyperion Water

Reclamation Plant by 2035.

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Hyperion Water Reclamation Plant

Pacific Ocean

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Hyperion Advanced Treatment

1. Membrane bioreactors 2. Reverse osmosis 3. Advanced oxidation

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Program components

DCT

Hyperion

JWPCP

Terminal Island

Vander Lans

Diemer

ARC

Weymouth

LAG

Los Angeles Aqueduct

Filtration Plant

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Program components

DCT

Hyperion

JWPCP

Terminal Island

Vander Lans

Diemer

ARC

Weymouth

LAG

Los Angeles Aqueduct

Filtration Plant

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Program components

DCT

Hyperion

JWPCP

Terminal Island

Vander Lans

Diemer

ARC

Weymouth

LAG

Distribution System

Los Angeles Aqueduct

Filtration Plant

Possibilities:1. inject, extract, treat, distribute2. DPR3. RWA ahead of treatment

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Program components

DCT

Hyperion

JWPCP

Terminal Island

Vander Lans

Diemer

ARC

Weymouth

LAG

Rio Honda

Santa Fe

Orange County

Distribution System

Los Angeles Aqueduct

Filtration Plant

Possibilities:1. Backbone SF Pump GW2. RWA at Weymouth3. Hyperion Barrier Desalter Distribution

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Program components

Lopez

Hansen

Tujunga

Branford

Pacoima

BalboaPS

DCT

Hyperion

JWPCP

Terminal Island

Vander Lans

Diemer

ARC

Rio Honda

Santa Fe Weymouth

LAG

Orange County

Los Angeles Aqueduct

Filtration Plant

Distribution System

Possibilities:1. Hyperion PS

2. Spreading Grounds2. RWA at LAAFP

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Challenges• Focus away from groundwater recharge to DPR

(water recycling criteria for Direct Potable Reuse through Raw Water Augmentation by December 31, 2023)

• In-City Construction• Hyperion Advanced Water Treatment Facility

– Brine Management– Equalization Storage

• Complex groundwater governance structure• Inter-jurisdictional planning• Basin Specific Storage and

Augmentation rules

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Program Partners

How do you collaborate, align goals, and benefit the whole region?

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Ongoing Efforts

• Coordination with partnering agencies (LASAN, WRD, MWD)• Engaging Potential partners – Local Cities, Contract Agencies• DPR Regulations• Financial Plan• Resource Planning• Internal Studies• Pilot Studies• Community Engagement and Outreach Plan

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Q & A

Chris Repp, P.E., M.S.C.E.chris.repp@ladwp.com

(213)367-4736

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Recycled Water AvailabilityHyperion Effluent 260 MGDWBMWD 35 MGDWBMWD Future Demand 5 MGDWest Coast Seawater Barrier (Desalter)

10 MGD

In-Plant Consumptive Uses 10 MGDSubtotal 200 MGD

RO brine loss (-15%) 30 MGD

Recycled Water Availability 170 MGD190,400 AFY