RPU WATER SUPPLY PLAN

Phase I Funding

October 21, 2011

Develop a safe, reliable, local,

sustainable, and cost effective water

supply to maintain Riverside’s water

independence for the next 100 years.

(Excerpt): Increase local water supply through:

Increased use of recycled water

• Direct delivery to offset potable demand

• Groundwater recharge

Overview of Water Supply Planning

0

25,000

50,000

75,000

100,000

125,000

Dem

an

d (

AF

Y)

Year

Shortage /

Need

Developed

Resources

Estimated imported water

cost to meet demand:

Riverside Water Demand

Cost of Water to meet demand: $1,300 - $2,500 AF

Future Recycled Water Operations

52,400 AFY Plant Operation

(7,100) AFY In-Plant Use

(25,000) AFY Required flow to Santa Ana River

20,300 AFY Available for Recycling

Discharge to SAR – 48% In-plant use –

13%

Recycled Water Future – 30%

Recycled Water Phase 1 – 9%

Consultant Study for Recycled System

Estimated Capital Cost:

Pipelines $ 319,000,000

Reservoirs $ 31,000,000

Pump Stations $ 23,000,000

Advanced Treatment $ 165,000,000

Recharge Basins $ 8,000,000

Total Estimated Cost: $ 546,000,000 - $42/customer/month

Approximately $2,200/AF

Staff believed lower cost alternative was available!

RPU Alternative Recycled Water System

Two Project Recycled Water Alternative

Phase 1: Arlington-Central Recycled Water Pipeline

Phase 2: Santa Ana River Pipeline to Pellissier Ranch

Total Project Cost: $155 million - $9/customer/month

Approximately $425 AF

Water Supply Increase: 25,000 AFY

• 5,000 AFY Groundwater Recharge (Recycled)

• 15,000 AFY Groundwater Recharge (Storm water)

• 2,300 AFY Direct Use (Recycled)

• 2,600 AFY Wholesale/Exchange (Recycled)

RPU Alternative Recycled Water System

Recommendation

Phase 1: Arlington-Central Recycled Water Pipeline - Now

Phase 2: Santa Ana River Pipeline to Pellissier Ranch - Future

Phase 1 Project Cost: $39 million

$4 million cost

Total Water Supply Increase: 8,600 AFY

• 5,000 AFY Groundwater Recharge

• 1,000 AFY Direct Use (Recycled)

• 2,600 AFY Wholesale/Exchange (Recycled)

• Enough water for 17,000 households

Arlington - Central Pipeline

Project Elements – Distribution System:

6 miles of transmission and distribution pipelines

• Arlington Av. from Van Buren Blvd. to Riverside Av.

Interconnection to Riverside Canal downstream of Gage Canal tie

• Interconnection for wholesale service to WMWD

Connection to existing Central Av. purple pipe

Project Elements – Water Quality Control Plant:

Dedicated service pipeline

New storage reservoir and pump station

Metering and control facilities

Project Elements – Groundwater Recharge

Groundwater recharge basins for Arlington Basin

• Potential joint project with WMWD

• Use existing Riverside Canal & WMWD pump

station/pipelines

Connection to Mockingbird Lake dam outlet

• Provide for storm water capture

• Diluent water for regulatory requirements

• Creates dual use recharge basins

Arlington - Central Pipeline

Potential for Recycled Water Service to:

Adams Elementary School

Shamel Park

Don Jones Park

Ramona High School

Jefferson Elementary School

Low Park

Pachappa Elementary School

Olivewood Memorial Park

Poly High School

Alcott Elementary School

Parkways and Medians

Arlington - Central Pipeline

Implementation Timeline – Phase 1

Phase 1 Project – Arlington Central Pipeline

Projected in Service Fall 2014

• Construction Start Winter 2012 / Spring 2013

Groundwater Recharge permitting by project

partner(s)

Concept Approval

and CEQA

Engineering Construction

2011 2012 2013 2014

Recycled Water Rate Plan

Structure as fixed charge

Similar to Electric reliability charge

$4/month - Typical Residential and Commercial Customer

$2.00 / month effective March 2012

+$2.00 / month effective March 2013

95% of customers at this rate

Towards Riverside Water Independence for 100 years!

Recommendation

That the Board of Public

Utilities endorse moving

forward with the process

to implement Phase 1 of

the Recycled Water Plan