Orange County Water District

1
Orange County Water District Water Recycling/Reuse
Western States Water Council November 16, 2006
Orange Countys Groundwater Authority
2
OCWD - What Do We DoWe Recycle Water

• Provide an extremely reliable, high quality, and
  low cost groundwater water supply to most of
  Orange County
• Serve 2.2 Million People in North and Central
  Orange County with 70 of their water, that in
  turn supports a 155 billion dollar pre year
  economy
• Improve water reliability and quality and protect
  and enhance the environment along the way

3
Orange County Groundwater Basin

• 10-40 Million Acre Feet (MAF)
• 1 1.5 MAF usable storage
• Non adjudicated
• Very healthy basin
• Most monitored basin in So. Cal.
• Limited pockets of contamination being remediated

4
Investment in recycled water and recharge
improvement projects has allowed basin production
to double
5
Where Southern CaliforniaGets its Water
Water Banking/Exchanges Storage Transfers
Colorado River Aqueduct
CaliforniaAqueduct
LA Aqueduct
Local Supplies Groundwater, Recycling
Local Conservation
6
(No Transcript)
7
Recycled water from the upper watershed provides
nearly half the replenishment supply for the
Orange County GW Basin
San Bernardino
?
Ontario/Chino
?
?
?
?
?
Riverside
?
?
OC GW Basin
Santa Ana River Watershed
? Waste Water Treatment Plant

8
FY 06-07 BPP Calculation

• Historical Average SAR base and storm flows as of
  6/30/05
• Historical Average Incidental recharge as of
  6/30/05
• Planned FY 06-07 water purchases
• MWD
• Arlington, Alamitos Barrier, FV HB
• GWRS Phase 1

50 is Recycled Water
Water Recharged (350,000 af)
Basin Storage (20,000 af)
WQ Pumping Above BPP (20,000)
-
-
Calendar yr 2005 Total Water Demands (465,000 af)
Reclaimed Local Supplies (17,000 af)
-
9
Desilting System
Deep Basin System
Santa Ana River
Off-River System
Burris Basin/Santiago System
Over the past 70 years, OCWD has constructed a
large, complex recharge system.
10
Kraemer Basin (40 acres)
Miller Basin (25 acres)
Anaheim Lake (70 acres)
SAR Water
Imported Water
Orange County Water Districts deep recharge
basins.
11
Natural Treatment of Santa Ana River
12
Wetlands Benefits

• Natural water treatment system
• 30 times more cost effective
• 40 tons/month of nitrate removal
• Habitat for hundreds of bird species
• Recreational opportunities

13
(No Transcript)
14
(No Transcript)
15
OCWD wants more recycled water
Proposed 07-08 BPP calculation plus 72,000 AF
GWRS water
Water Recharged (350,000 af)
WQ Pumping Above BPP (20,000)
Basin Storage (20,000 af)
GWR System (72,000 af)
-
-


BPP ( Up to 85 )
Calendar yr 2005 Total Water Demands (465,000 af)
Reclaimed Local Supplies (17,000 af)
-
16
What is the Groundwater Replenishment System?

• 476 million indirect potable reuse project
• New high-tech membrane water purification system
• Will produce 72,000 afy of new water for Orange
  County

17
Project Map
18
GWR System Advanced Water Treatment
OCSD Source Control and Secondary Treatment
Reverse Osmosis (RO)
Ultraviolet Light with H2O2
Microfiltration (MF)
Barrier
Recharge Basins
Backwash OCSD Plant 1
Brine OCSD Outfall
19
GWR System ConstructionOn Line September 2007
20
Keys To Recycled Water Success

• Water Quality Ethic
• Commitment to Technology
• Treatment
• Laboratory
• Research and Development
• Collaborate with Regulators
• Aggressive Outreach
• Political
• Technical
• Community leaders
• Non Traditional Groups

21
Broad Based Community Support
22
Supportive Groups
23
Supportive Businesses

• Chambers of Commerce (representing some
  18,000 businesses)

24
Supportive Elected Officials
Cities
Plus 35 Southern California water agencies
associations
25
(No Transcript)
26
National Health Medical Supporters

• Dr. John Balbus, MD, Director, Environmental
  Health Program, Environmental Defense, and former
  Director, Center for Risk Sciences Public
  Health
• Dr. Sanford Brown, MPH, PhD, Professor Emeritus,
  Department of Health Science, California State
  University Fresno
• Dr. Christine Moe, PhD, Associate Professor of
  Infectious Disease Epidemiology Emory University
  School Public Health, Environmental
  Epidemiologist Center for Disease Control and
  Prevention (CDC) Atlanta, Georgia
• Dr. David A. Kalman, PhD,. Professor Chair,
  Department of Environmental Occupational Health
  Sciences, Univ. of Washington
• Dr. Chris J. Wiant, MPH, PhD., President, Caring
  for Colorado Foundation
• Dr. Robert M. Soderstrom, MD, Past Chairman,
  Environmental Health Committees, Genesee County
  Medical Society Michigan State Medical Society

• Dr. Ralph Morris, MD, MPH, Public Health
  Preparedness Consultant, Minnesota Department of
  Health and member of American Board of Preventive
  Medicine
• Dr. Kellogg Schwab, PhD, Center for Water and
  Health at Johns Hopkins University
• Dr. H. John Blossom, MD, Director, California
  Area Health Education Center, Professor of
  Clinical Family and Community Medicine UCSF,
  Department of Family and Community Medicine
• Dr. Joan Rose, PhD, Howlin Chair for Water
  Research, Michigan State University
• Dr. Stephen D. Arnold, PhD, Department of Health
  Science, New Mexico State University
• Dr. Byron J. Bailey, MD, FACS, Past President,
  National Assoc. of Physicians for the Environment
• Dr. Lester Breslow, MD, MPH, Dean Professor
  Emeritus, School of Public Health, UCLA

27
Recycled Water Benefits Orange County

• Recycled water has enabled groundwater production
  in Orange County to increase by about 150,000 AFY
  and will further increase by an additional 72,000
  AFY
• The region and state benefits by 220,000 of
  reduced need for imported water

28

• End of Presentation