2. Sustainable Water Futures – Opportunities at Water and Wastewater Utilities The Future of Recycled Water Richard Atwater

3. Richard Atwater, Inland Empire Utilities Agency November 13, 2009 GE Forum

4.  Water shortages likely in the future because Colorado River and Sacramento River “delta” supplies fully allocated!  State Water Plan: Conservation, water recycling, groundwater treatment and stormwater capture key strategies in urban areas.  Seawater desalination a relatively small percentage of solution but will be important in some coastal communities.  Water/Wastewater utilities will increasingly focus on renewable energy as a result of climate change laws and regulations.

5. $1 billion for water recycling and $1 billion for groundwater clean up And another $1.4 billion for regional water supply projects

6.  Sources of New Supplies: ◦ Conservation Technologies - 40% ($1.5 billion) ◦ Recycled Water – 30% ($8-10 billion) ◦ Groundwater Storage and Cleanup Technologies – 25% ($6-7 billion) ◦ Seawater Desalination of New Water Supplies – 1% to 3% ($2 billion) ◦ New Dams – 2% to 5% (if built about $10-12 billion)

7.  Governor’s Recycled Water Task Force 2003  California Water Board Recycled Water Policy 2009  Water Bond $1 billion for Recycled Water  Metropolitan Water District Regional Water Plan California – reuse and recycling will double in volume by 2015 and then double again by 2020!

8. Applications  Landscape Irrigation  Agricultural Irrigation (Edible & Non-Edible Crops)  Industrial and Commercial  Environmental Uses  Non-Potable Urban Uses (Urinal Flushing in High Rise Buildings)  Groundwater Recharge  Potable Water Supply Augmentation

9.  Use Watersense and DOE Energy Star branding models  Promoting new innovative uses of recycled water  Encourage recycled water use at all federal facilities

10. What is Possible with Water Reuse?  Answer: Virtually Anything Given Current Technology  With MF/RO/UV/AOP, Can Produce Water that is Virtually Pure Dihydrogen Monoxide  Problem is that Technology has Surpassed our Ability to Communicate Effectively with Public  Need to Resolve Issues with EDCs/PPCPs

11. Significant Trends in Water Reuse  Reuse is Gaining in Prominence Around the Globe (e.g., Australia, Singapore, South Africa, Israel, Spain, Belgium)  Technology Marches Forward with AOP & MBRs  Constant Challenge in Public Acceptance Arena  Research Focus is Now Global  Climate Change and Energy are Significant Emerging Issues  Progress Being Made Internationally on Indirect Potable Reuse Front

12. Potential for Water Reuse  Approximately 11.2% of municipal wastewater effluent in the U.S. is reclaimed and beneficially reused 11.2% Reclaimed About 34.9 bgd Municipal Effluent in the U.S.

13. 86 mgd 70 mgd Ultraviolet Light (AOP) Brine OCSD Outfall Backwash OCSD Plant 1 Microfiltration(MF) Reverse Osmosis (RO) Purified Water with hydrogen peroxide Enhanced Source Control Secondary Treatment Natural soil filtration OCSD Secondary Effluent

15. SecondaryTertiary Soil-Aquifer Treatment Primary Groundwater Blend & Hold Distribution System Industrial & Brine Export 95% TOC Removal to 7.0 mg/L Avg. 75% TOC Removal to ±2 mg/L Industrial Pretreatment & Source Control Influent TOC Avg. 165 mg/L 50% TOC Removal to ±1 mg/L

16.  Pre-Treatment Program ◦ Manages Significant Industrial Users (SIU) ◦ No Drugs Down the Drain Program ◦ Industrial & Brine Export to NRWS  Longstanding Treatment Facility Performance ◦ Outstanding NPDES & T-22 Compliance Record  100% Compliant for 2008 ◦ Exceptional Nitrogen and TOC Removal ◦ No Issues with Emerging Constituents of Concern

17. Recycled Water Usage Actual and Planned

18. Recycled Water Use  FY08/09  Projected FY11/12  (3-Year RW Business Plan) 3- Years

19. Three Products:  Recycled Water  Biosolids/ Composting  Renewable Energy

20.  Since 2001, goal has been to maximize renewable energy, optimize energy usage  Significant investments made in biogas generation, energy efficiency, green building (first platinum LEED)  Go “100% Renewable” by 2020  Pursue New Renewable Technologies

21. Maximize Efficiency  Constructed the nation’s first platinum LEED-rated headquarters by a public agency (2003)  Biogas production from anaerobic digesters  Installed a total of 16.5 acres of solar panels in 2008 on four Agency’s sites Sustainability and Diversification

22.  Renewable Energy Strategies  Climate Change  Key Driver to the Future Cost of Water

24. Electricity Use for Water System Components in Southern California Local Distribution 9% Groundwater Supply 6% Imported Water Supply 71% Waste Treatment 14%

25. Energy Intensity of Water Supplies for IEUA 400 950 1,050 1,700 2,000 2,500 3,200 4,400 - 500 1,000 1,500 2,000 2,500 3,000 3,500 4,000 4,500 KWH/AF RecyclingGroundwater Pumping Ion ExchangeChino Desalter Colorado River Aqueduct West Branch State Project Water East Branch State Project Water Ocean Desalter Energy Use by Source

26. Solar System at IEUA Water Recycling Plant (Went live 11/28/08 at 1300 hours)

27.  3.5 MW of Solar installed at 4 sites in just 4 months  Financing – Power Purchase Agreements (PPA) used – No capital burden on Agency  No maintenance responsibilities for IEUA

28. Richard Atwater CEO/General Manager Inland Empire Utilities Agency www.ieua.org atwater@ieua.org