San Diego Water Innovation Opportunities  - PowerPoint Presentation

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San Diego Water Innovation Opportunities 

February 2014 – a look ahead

City of San Diego

Halla Razak, P.E.

San Diego Public Utilities Department…

Delivers high quality drinking water, collects and treats wastewater, produces delivers recycled water, and generates green energy– everyday Maintains and operates extensive infrastructureKeep rate-payer affordability top of mind

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San Diego Water/Wastewater Facts

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California Water System Highlights

77% of the City of San Diego’s water is imported

26%

Bay Delta

51%

Colorado River

23%

Local Supplies and

Conservation

City of San DiegoWater System Overview

Water SystemThree major treatment plants over three service areasStrategically located reservoirs to capture/store local water supply

Complex system with more than 3,300 miles of pipelines

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Miramar Water Treatment Plant

Alvarado Water Treatment Plant

Otay

Water Treatment Plant

Limited local supplies

Imported water at risk as competition for the resource rises

Recurring drought

Population growth

Regulatory constraints

Natural disasters/climate change

Water Supply Availability

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Imported Water Costs

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Imported water costs have doubled since 2008

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City of San Diego:

Water Conservation

Groundwater Development

Recycled Water

Indirect Potable Reuse (Pure Water)

Regional:

Importing from State Water Project and Colorado River

Desalination (SDCWA)

What Options Does San Diego Have?

83-mgd of Pure Water: Our Opportunity

Initial phase: 15 mgd of purified water to San Vicente Reservoir

(7 - 8% of local supply)Our purest source of raw waterReliable and locally controlled

Drought proof, climate independent

More control over local investments

Add economic benefit to local industry

membrane companies, construction jobs

Decreases reliance on imported water

Reduces ocean discharge

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Metro

Biosolids

Center (MBC)

North City Water Reclamation Plant

South Bay Water Reclamation Plant

Point Loma WWTP

Wastewater System Overview

Wastewater System

Geographically distributed

Pt. Loma is the hub

Collect, treat & dispose wastewater from

San Diego

& 12

other agencies

Pt. Loma operates with a 5-year modified permit

Recycled Water System

3 Pump Stations/80 Miles of Purple Pipes

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Pure Water Supports Permit Renewal

Long-term program specificsPermit renewal application due January 2015

Committing to investment in Pure Water could result in substantial savings at Pt. LomaReduces treated water discharge volume into ocean

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Pure Water

Secondary Treatment

San Diego Water at a Fork in the Road

San

Dieg

ans

will save over

$2.5 billion dollars

over the life of the Pure Water solution

San Diego Water

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Pure Water Program Elements

Pure Water demonstration programPermit package developmentRegulatory and legislative initiativeOutreach program expansion to include enhanced public engagement and education Financial plan

Capital program implementation

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Next Steps

Request Council Resolution for Pure Water:  Spring 2014Invest in outreach education: Spring 2014Roll out aggressive conservation program: Spring 2014Solicit services for program manager: Summer 2014

Prepare waiver application: Fall 2014Optimize scenarios & costs: 2014/15Work with elected officials, regulators, and stakeholders to develop consensus and secure approvals: 2014/15

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Back-up Slide

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Investing in our Water Future

We know that:

Imported water rates risingNeed to maintain/operate existing systemsOngoing water & wastewater

capital improvements

2015 Pt. Loma permit renewal

Pure Water implementation at

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mgd

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mgd Point Loma offload17

Pure Water Process

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