Halla RazakDirector of Public UtilitiesCity of San Diego

Contract Cities Association Fall Seminar and Southern California Water Summit

November 8, 2014

San DiegoPublic Utilities Department…

• Delivers high quality drinking water, collects and treats wastewater, produces and delivers recycled water, and generates green energy– every day

• Maintains and operates extensive infrastructure• Keeps rate-payer affordability top of mind

85% of San Diego’s water is imported

San Diego

Bay Delta

Colorado River

• Limited local & imported supplies

• Recurring drought• Population growth• Bay Delta constraints• Natural disaster risk• Rising imported water costs

Numerous Water Challenges

$0

$200

$400

$600

$800

$1,000

$1,200

Imported Water Cost per Acre-Foot

55

City of San Diego:• Water Conservation

• Groundwater Development

• Recycled Water

• Indirect Potable Reuse (Pure Water)

Regional:• Importing Water

• Water Conservation

• Desalination (SDCWA)

What Options Does San Diego Have?

6

Pure Water: Our Opportunity

• A 20-year program to provide a safe, secure, and sustainable local water supply

• Provides over 1/3 of the City’s water (83-mgd)

7

Advanced Water Purification

• Advanced multi-barrier treatment process– Microfiltration and Ultrafiltration– Reverse Osmosis– Advanced Oxidation with Ultraviolet Light and Hydrogen Peroxide

Microfiltration & Ultrafiltration Reverse OsmosisAdvanced Oxidation with UV Light &

Hydrogen Peroxide

Developing Our Local Water Supply

15 MGDWastewater will be purified at North City Plant and delivered to San Vicente Reservoir

Initial phase 2023

83 MGD

Wastewater will be purified at Harbor Drive and South Bay Plants and delivered to San Vicente and Otay Reservoirs

Long- term 2035

San Vicente Reservoir

Miramar Water Treatment Plant

Alvarado Water Treatment Plant

Lower Otay Reservoir

Otay Water Treatment Plant

Full Scale AWP Facility at North City

Harbor Drive Treatment

Facility

South Bay Treatment

Facility

9

Local Water Control

Most Economical

Creates sustainable new water supply

Imported Water Dependent

Vulnerable to Rising Costs

Continued Ocean Discharge

Pure Water Secondary Treatment

San Diego at a Fork in the Road

Pure Water San Diego Saves Money

20152017

20192021

20232025

20272029

20312033

20352037

20392041

20432045

20472049

$500,000,000$700,000,000$900,000,000

$1,100,000,000$1,300,000,000$1,500,000,000$1,700,000,000$1,900,000,000

Pure Water Secondary

Pure Water San Diego

System upgrades w/o Pure Water

Who Supports Pure Water?

• Elected Officials

– City Council Resolution, April 29, 2014

• Environmental Groups

• Wastewater Participating Agencies

• Professional Engineering Community

• Water Reliability Coalition

• Business Community

• Independent Rates Oversight CommitteeFriends of

Infrastructure

12

Summary

• 20-year program to develop supply of safe, reliable, sustainable local water supply

• Continued ocean environment protection– Diverts flows from Pt. Loma Wastewater Treatment Plant

• Cost-effective approach through an integrated water and waste water solution– Avoids unnecessary costly upgrades to Pt. Loma

– Reduces reliance on rapidly increasing price of water imports

What Can I Do?• Visit our website:

PureWaterSD.org

• Register for tours: PureWaterSD.org/tours

• Join our mailing list

Pure Water San Diego

@PureWaterSD

purewatersd