Pure Water San Diego Program Phase 1 – N orth City

Decem ber 13, 2017 California Water Com m ission

Water Storage Investm ent Program

P r opos ition 1 W ater Qual i ty , Supply , an d I n f r as tr uctur e I m pr ovem en t Act of 20 14

W e Face N um erous W ater Challenges

Imported Water Cost per Acre-Foot

Limited local and imported supplies Population growth Bay Delta constraints Natural disaster risk Recurring drought Rising imported water costs

Imported water cost per acre-foot

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of our water is imported…

85% Sa n Die go is downstream

Sa n Die go’s W a t e r Su pply

FY2017City of San Diego Deliveries = 165,000 AF

155,000 AF Imported Colorado River State Water Project

10,000 AF Local

Pure W ater Benefits

Improvements to the DeltaCost EffectiveEcosystem ImprovementsWater Quality Improvements – Reduced salinityAdded Flexibility - drought proof, locally controlled and sustainableBenefits expected in 2021

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Ex is t in g Sy s t e m … Primarily a Single-Use System

Pu r e W a t e r . . .Completes Our Water Cycle

Point Loma WWTP / Ocean Discharge

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Pure W ater – Phase 1 Projects

North City Pure Water Facility

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Phase 1 – North City will produce 30 mgd of San Diego’s water locally Indirect potable reuse project with surface water augmentation

Pure W ater – Phase 1 Projects

All facilities will be operated by City of San Diego

Operation of North City Renewable Energy Project under consideration for Private Public Partnership to be overseen by City of San Diego

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Tw o 10.4 m i le, 48-inch Pipel ines

32 m gdPum p St at ion

Deliver s additional wastewater flows to N or th City Water Reclam ation Plant (WRP)

Suppor ts Phase I Pure Water and recycled water production

N ew 32 m gd pum p station

Two new 10.4 m ile pipelines 48-inch new force main

M or e n a Pu m p St a t ion a n d Pipe lin e sNor t h Ci t y

WRP

Treats wastewater to recycled water standards

Expansion from 30 m gd to 52 m gd to m eet needs of:

Pure Water Facility Recycled Water System

Cur rent operation level will not be im pacted dur ing constr uctionM orena Pipeline

Pure Water Facility

N CWRP

N or t h Cit y W R P Ex pa n s ion

N or t h Cit y Pu r e W a t e r Fa ci l i t y

5-step water pur ification process

N ew 30 m gd facility operational in 2021

Will produce high-quality potable water

N orth City Pure W ater Pum p Station and Pipeline

Nor t h Cit yPure Wat er

Facil i t y

Miram ar Reservoir

~8-m iles of 48-inch Force Main and Pipeline

30 m gdPum p St at ion

Conveys pur ified water to M iram ar Reser voir via : N ew Pum p

Station N ew Pipeline

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North Cit y Renew able Energy & MBC ImprovementsNor t h Cit y Pure Wat er Facil i t y

Miram arLandf i l l

Met ro BiosolidsCent er

Renewable Energy

Renewable Energy

N ew facility will capture m ethane gas from M iram ar Landfill to generate renewable energy

Helps m eet Clim ate Action Plan targets for reducing greenhouse gas em issions

Will produce m ajor ity of power needed for N orth City Facilities

M etro B iosolids Center Im provem ents

Upgrades and im provem ents to existing process system s to accom m odate additional flows

Tim e lin e a n d M ile s t on e s

Pa r t n e r s

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Pu blic B e n e f it s : Ecos y s t e m I m pr ov e m e n t s

Tr a f f ic Con t r ol P la n : Reduces discharges to Pacific Ocean

Addresses WSIP Priorities 4 and 16 Decreases demand of water exported from the Delta, increasing outflow and decreasing

salinity Addresses WSIP Priorities 4,7,9, and 16

Provides Habitat and Invasive Species Management Plans Addresses WSIP Priority 15

$219 Million in ecosystem benefits

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Pu blic B e n e f it s : Ecos y s t e m I m pr ov e m e n t s

Tr a f f ic Con t r ol P la n :

A diverse range of Ecosystem Improvements that brings lasting benefits to the residents of California

Publ

ic Be

nefit

Description of Benefit WSIP Priorities Addressed How Benefits Are Achieved?

Ecos

yste

m Im

prov

emen

ts

Reduce suspended solids asdischarged to the Pacific Oceanfrom the Point Loma WastewaterTreatment Plant.

4. Improve ecosystem water quality.16. Enhance habitat for native speciesthat have commercial, recreational,scientific, or educational uses.

Comparative water quality in Year 2022:PLWTP without Pure Water:• Average Daily Flow estimated at 156 million gallons per day• Total Suspended Solidsestimated at 10,100 metric tonsPLWTP with Pure Water:• Average Daily Flow estimated at 126 million gallons per day• Total Suspended Solidsestimated at 8,400 metric tons

Decreasing the demand of waterexported from the Delta toSouthern California, the naturaloutflow from the Delta willincrease, thereby decreasingsalinity concentrations.

4. Improve ecosystem water quality.7. Increase Delta Outflow to providelower salinity habitats.9. Enhance flow regimes or groundwaterconditions.16. Enhance habitat for native species .

• Incremental benefits to flow and salinity are demonstrated using the prescribedCalSim-II and DSM2 model products for 2030 and 2070

• In order acknowledge the complexity of State’s water system, the City has alsoincluded $20M in the Project budget for the purchase of in-stream water in theDelta (this is not included in the current model as location and other details areto be determined).

Provide Habitat and InvasiveSpeciesManagement Plans.

15. Develop and implement invasivespecies management plans

Through direct development and implementation of habitat and invasive speciesmanagement plansat Miramar Reservoir that are included in the Project.

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Pu blic B e n e f it s : W a t e r Q u a lit y I m pr ov e m e n t s

Tr a f f ic Con t r ol P la n :

Reduced salinity of purified water will benefit waterbodies and groundwater Addresses WSIP Priorities 5 and 6

Reduces current and future demands on Delta Addresses WSIP Priority 8

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Photo by Bureau Reclamation

Pu blic B e n e f it s : W a t e r Q u a lit y I m pr ov e m e n t s

Tr a f f ic Con t r ol P la n :

Regional and In-Delta Water Quality Improvements that bring lasting benefits to Region and residents of California

Publ

ic Be

nefit

Description of Benefit WSIP Priorities Addressed How Benefits Are Achieved?

Wat

er Q

ualit

y Im

prov

emen

ts

Reduced salinity loading of purifiedwater will benefit waterbodies andgroundwater throughout a largepart of northern San Diego includingAssembly District 77.

5. Salinity Reduction in Surface Water Bodiesnot meeting standards6. Protect, clean up, or restore groundwater inhigh or medium priority basins

• Pure Water TDSwill typically be 130 mg/ l.• Potable water suppliesTDSaverage 620 mg/ l.• Use of Pure Water will eliminate of 57,430 lbs/day of TDS over current

potable water supply.

The Project embodies this priority.In addition, the benefits found inPure Water will be consistent for thelife of the Project. Unlike manystorage projects, this project will beresilient to climate change anddrought.

8. Reduce current or future water demands onthe Delta by developing local water suppliesand improving regional self-reliance.

• Pure Water embodies Priority 8 through investment in “water useefficiency, water recycling, advanced water technologies, local andregional water supply projects, and improved regional coordination oflocal and regional water supply efforts.”

• Unlike many storage projects this project will be resilient to climatechange, drought, earthquakes, firesand other natural disasters.

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Pu blic B e n e f it s : Em e r ge n cy R e s pon s e & R e cr e a t ion

Tr a f f ic Con t r ol P la n : Provides safe, reliable water during a wide range of emergency scenarios

Emergency response water supplied for human health and safety purposes in the event of major earthquakes, fires and droughts

The Pure Water San Diego Visitor Center creates educational opportunities Information on California’s water system and Pure Water’s features and benefits of a locally-

controlled, sustainable, drought-proof water supply

30 percent design rendering of North City Pure Water Facility

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Pu blic B e n e f it s : Em e r ge n cy R e s pon s e & R e cr e a t ion

Tr a f f ic Con t r ol P la n :

Provides emergency response water for human health and safety during major earthquakes, fires and droughts; Educates the public on the value of water

Publ

ic Be

nefit

Description of Benefit WSIP Priorities Addressed How Benefits Are Achieved?

Emer

genc

y Re

spon

se Providing safe, reliable water during a wide range of emergency scenarios.

WSIP considers emergency response water supplied for human health and safety purposes during declared emergencies a public benefit.

San Diego is at the southern terminus of the State’s water system and the system is exposed to many different risks. The Project will provide emergency response water supplied for human health and safety purposes during major earthquakes, fires and droughts.

Recr

eatio

n

The Project will include a visitor center where the public can learn about local water supply systems, infrastructure and the five-step water purification process.

WSIP considers recreation activities as those typically associated with water bodies (such as rivers, streams, lakes, wetlands, and the ocean) and wildlife refuges that are accessible to the public. Recreational benefits must be directly affected by the proposed project and be open to the public, and may provide interpretive, educational, health, or intrinsic value.

In alignment with WSIP objectives for recreation, the Pure Water San Diego Visitor Center will provide information on California’s water system and Pure Water’s features and benefits of a locally controlled sustainable, drought-proof water supply.

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Cla im e d N on -Pu blic B e n e f it s

Tr a f f ic Con t r ol P la n : Lowest net energy of any new water supply for the Region leads to other, broader benefits for California and the Delta 50-year design life Continuously provides new water supply with a low net energy requirement Lasting reductions in energy use and greenhouse gas emissions Reduced sea level rise which in turn provides significant benefits to the Delta's ecosystem

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Cla im e d N on -Pu blic B e n e f it s

Tr a f f ic Con t r ol P la n :

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Bene

fit

Description of Benefit Priorities Addressed How Benefits Are Achieved?

Othe

r

Lowest net energy requirement of any new water supply for the Region leads to other, broader benefits for California and the Delta.

Reductions in greenhouse gas emissions will provide overall benefits to the State and reduce sea level rise. This reduction in sea level rise will most significantly reduce salinity impacts in the Delta. This will incrementally address Priorities 4, 7, 9 and 16.

The Project has a 50-year design life and will continuously provide new water supply with a low net energy requirement. This will provide lasting reductions in energy use and greenhouse gas emissions which will reduce sea level rise. In turn this will provide significant benefits to the Delta’s ecosystem.

Lasting reductions in energy use and GHGs will provide significant benefits to the Delta Ecosystem

00.5

11.5

2

2.5

3

3.5

Recycled WaterGroundwater

BrackishGroundwater

DesalPure Water

Program Colorado RiverAqueduct State Water

Project Seawater Desal

KWh/

m3

Typical Energy Intensity by Water Source for Southern California Utility

Source: Pacific Institute analysis regarding SDCWA data

En e r gy Con s e r v a t ion B e n e f it s of Pu r e W a t e r

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Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

Public Benefits

Construction

EIR/ EIS

Title 22 Engineering Report

Miramar NPDES

Construction Permits

Project Operations

2018 2019 2020 2021

A ppr ox im a t e Tim e lin e a n d M ile s t on e s

EIR/EIS Record of DecisionJune 2018

Title 22 ApprovalAugust 2018

Miramar NPDES Permit AttainmentDecember 2018

Final Construction Permits ReceivedFebruary 2020

Construction StartOctober 2018

B ars for Construction Permits and Construction comprise 12 separate construction packagesPermits for each construction package will be attained prior to the start of construction for that package

Full Project Operations StartDecember 2021

Public B enefits B eginDecember 2021

Project Commissioning StartJune 2020

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Tim e lin e a n d M ile s t on e sPure Water Cooperative Agreement in Support of the Pure Water Program Signed in 2014 with:

Pa r t n e r s

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San Diego Coastkeeper San Diego Audubon Society Surfrider Foundation Coastal Environmental Rights

Foundation

W h o Su ppor t s Pu r e W a t e r ?

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Ch e e r s t o t h e Fu t u r e !

Diverse Benefits Environmental Financial Reliability

Increased Benefits to the Delta Wide-Range of Support Environmental Groups Businesses Legislative Leaders

Operational in 2021

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Pure Water San Diego

@PureWaterSDPureWaterSD PureWaterSD

w w w .purew at ersd.org

QUESTIONS?

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A ddit ion a l I n f or m a t ion

Tr a f f ic Con t r ol P la n :

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A ddit ion a l I n f or m a t ion

Phase 1 – N orth City Construction Schedule

Phase 1 ProjectConstructionStart Date

Morena Pump Stat ion and PipelinesMorena Pump Station Sept em ber 2019Morena Pipelines Apr i l 2019

North Cit y Water Reclamat ion Plant ExpansionSite Preparation Oct ober 2018

NCWRP Expansion & Influent Pump Station andPipeline February 2019

NCWRP Equalization B asin Novem ber 2018

North Cit y Pure Water Facilit ySite Preparation Decem ber 2018NCPWF and NCPW Pump Station February 2019

North Cit y Pure Water PipelineNCPW Pipeline and Dechlorination Facility Novem ber 2018Subaqueous Pipeline May 2020

North Cit y Renewable Energy March 2020Met ro Biosolids Center Improvements February 2019Miramar Water Treatment Plant Improvements Novem ber 2019

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