West Basin Municipal Water District’s

Water Recycling Program

March 4, 2009

Who is West Basin?

Serve imported

water to nearly

1 million

people

Water Reliability Portfolio

16%

12%

8%

64%

20%

22%

33%

16%

9%

2008 2020

Wate

r S

up

ply

Wate

r S

up

ply

Energy Requirements, kWh/AFEnergy Requirements, kWh/AF

00 500500 10001000 15001500 20002000 25002500 30003000 35003500 40004000 45004500 50005000

Recycled Water

Groundwater

Imported Water

Desalinated

Water

High Efficiency OceanHigh Efficiency Ocean--Water DesalinationWater Desalination

Colorado River AqueductColorado River Aqueduct

State Water ProjectState Water Project

NativeNative

Recycled ReplenishmentRecycled Replenishment

Import Replenishment CRAImport Replenishment CRA

Import Replenishment SWPImport Replenishment SWP

Title 22Title 22

RORO

Another advantage of Recycled

Water - Saves Energy!

West Basin Municipal Water District's Energy Usage

Compared to 1990 Levels

350,000

400,000

450,000

500,000

1990 2009 2020

Time Period

En

erg

y U

sa

ge

(M

eg

aw

att

s) 1990 Levels - All Water Sources

• Expanded Edward C. Little

Water Treatment Plant 4X – only

plant to make five "designer”

waters

• $500 million investment since

1994, but contained costs with

$87 million in grants,

• Saves industrial customers

30% on water that will not be cut

back

West Basin Recycled Water

Program

Current RW Production

• 40,000 acre-feet per year of water is not

discharged into the ocean,

• Instead it is recycled and used to save

enough potable water for 240,000 of you

and your neighbors, and

• Goal is to produce 70,000 acre-feet per year

of recycled water by 2020 to provide 3

years of drought protection for our area.

• Over 100 miles of

existing and

proposed purple pipe

system in coastal LA

• Currently serve

237 customer sites

• Majority is for

landscape irrigation

Recycled Water Distribution System

Designer Recycled Water

5 different qualities

1. Nitrified: Cooling Tower

2. Tertiary: Irrigation

3. Softened RO: Seawater

Barrier / GW Injection

4. Single RO: Low-Pressure

Boiler Feed

5. Double RO: High-Pressure

Boiler Feed

Recycled Water Design Capacity

40,000

16,800

12,500

5,800

2,600

0

5,000

10,000

15,000

20,000

25,000

30,000

35,000

40,000

Tertiary Cooling

Towers

GW Injection Low

Pressure

Boiler Feed

High

Pressure

Boiler Feed

Acre

-feet

per

year

Recycled Water Revenue

11%Potable Rates

10%Grants

16%MWD Incentive ($250/AF)

19%Standby Parcel Charge

15%Fixed Charges

30%Recycled Sales

Recycled Water Uses

• Landscape Irrigation

• Cooling Tower Make-Up

• Sports Turf

• Street Sweeping

• Toilet and Urinal Flushing

• Seawater Barrier

Inglewood only city in U.S. to

use recycled water for street

sweeping

Toyota USA uses

recycled water for

toilet flushing,

cooling towers and

irrigation

50% of the total water used in

El Segundo is recycled water

from WBMWD

Recycled Water Uses

Funding Needed

• To reach 2020 goals requires $700 Million

for desalination, conservation and recycled

water projects

• The demands are greater than the funding

available

• Grant funding is needed to help fund these

projects

Thank You

• Questions?

• Comments?