Recent Awards 2009 • United States EPA Clean Water State Revolving Fund "PISCES" Award  In recognition of projects that advance clean and safe water through exceptional planning, management and financing, awarded to the Groundwater Replenishment System • American Society of Civil Engineers (ASCE) Outstanding Civil Engineering Achievement Award Received for the year’s most outstanding national engineering project, awarded to the Orange County Water District and Orange County Sanitation District for the Groundwater Replenishment System • American Council of Engineering Companies (ACEC) Grand Conceptor Award  Signifies the year's best engineering achievement among the 168 national projects honored by the ACEC, awarded to the Orange County Water District • American Council of Engineering Companies (ACEC) “Golden State” Award of Excellence The highest California award offered by ACEC, awarded to the Groundwater Replenishment System • Green California Leadership Award, Water Management In recognition for efforts managing sparse water supplies in Southern California, awarded to the Orange County Water District  • International Ultraviolet Association UV Engineering Project of the Year Award  In recognition of the Groundwater Replenishment System for its innovation and vision, and lasting impact it has had as an example of how to integrate UV advanced oxidation technology into a water reclamation process train. • Said Khoury Award for Engineering Construction Excellence Four engineers associated with the Groundwater Replenishment System received the award from the World Federation of Engineering Organizations. The engineers recognized were: OCWD Director Denis Bilodeau, P.E.; OCWD General Manager Mike Markus, P.E.; OCSD Director of Engineering Jim Herberg; and Richard Corneille, P.E., from CDM.

2008 • Stockholm 2008 Industry Water Award Prestigious international award received in recognition of pioneering work to develop the Groundwater Replenishment System, awarded to the Orange County Water District and Orange County Sanitation District • Toshiba Green Innovation Award The Orange County Water District and Orange County Sanitation District named winners for the Groundwater Replenishment System and their commitment to the environment • Southern California Edison Savings By Design Award The Orange County Water District and Orange County Sanitation District were recognized with six awards totaling $421,432 for energy-saving strategies that were incorporated into the design of the Groundwater Replenishment System • United States EPA Water Efficiency Award Recognition to the Orange County Water District for world leadership in wastewater purification for groundwater replenishment. Award given for technical success, especially for 10-year+ effort to educate the public. The payoff for Southern California is a drought-proof supply of water for 500,000 people, half the energy otherwise used to pump water from Northern California (enough energy to power 21,000 homes), a seawater barrier that protects the public’s water supply from ocean contamination, and a pathway to ensuring future economic development. The purification process of microfiltration, reverse osmosis, and ultraviolet light with hydrogen peroxide produces water that exceeds state and federal drinking water standards. • Global Water Intelligence Award of Distinction, Water Project of the Year In recognition of the Groundwater Replenishment System • Global Water Intelligence Public Agency of the Year Recognizes the public sector organization that made the greatest contribution to meeting the challenges of water supply during the previous year • Association of California Water Agencies (ACWA) Clair A. Hill Award The Orange County Water District is the only agency to receive this prestigious award more than once, having won the award in 1993 • Orange County Coastkeeper Coastal Protection Award In recognition of the Groundwater Replenishment System • International Water Association (IWA) Honor Award, Design Projects This global recognition is part of the IWA Project Innovation Program for Excellence in Innovative Water Engineering • United States Congressional Recognition for Environmental Achievement Presented by the U.S. House of Representatives, sponsored by Congress Member Loretta Sanchez (D, CA) in recognition of the Groundwater Replenishment System • State of California Senate Special Recognition for Environmental Achievement Sponsored by Senator Tom Harman for the Groundwater Replenishment System • Groundwater Resources Association of California (GRA) 2008 Kevin J. Neese Award Recognition to OCWD for its innovative groundwater management operations, particularly the development of the Groundwater Replenishment System • California Special Districts Association (CSDA) Board President of the Year In an unprecedented move, the CSDA co-awarded its Board President of the Year to two presidents: OCWD Board President Steve Sheldon and OCSD Board Chair Doug Davert because of the agencies’ partnership constructing the Groundwater Replenishment System. It was the first time CSDA recognized two presidents in the same year for the award. • City of Huntington Beach Commendation for Environmental Achievement In conjunction with the Orange County League of Conservation Voters, the commendation was presented to the Orange County Water District in recognition of the Groundwater Replenishment System • Orange County League of Conservation Voters Special Recognition for Environmental Excellence Award (see above) • American Society of Civil Engineers, Orange County Branch, Project of the Year Presented to OCWD in recognition for the Groundwater Replenishment System • Metropolitan Water District of Southern California (MWD) Resolution OCWD was recognized with a Resolution commending it for the Groundwater System • Orange County Engineering Council Engineering Project of the Year Award presented to the Orange County Water District for the GWR System • WateReuse Association, California Section Large Agency of the Year Presented to OCWD for it’s contributions in water reuse • Resolutions to Honor the Orange County Water District for its 75th Anniversary Received By: -United States Senator Barbara Boxer -United States Senator Dick Ackerman -California State Assembly Member Chuck Devore -California State Assembly Member Todd Spitzer -California State Assembly Member Van Tran -California State Assembly Member Mimi Walters -Orange County Board of Supervisors John M. Moorlach, Chairman; Patricia C. Bates, Vice-Chair; Janet Nguyen; Bill Campbell; and Chris Norby -Mayor to the City of Santa Ana, Miguel A. Pulido -Irvine Ranch Water District Board of Directors; Darryl Miller, President -Municipal Water District of Orange County Board of Directors, Wayne A. Clark, President -Orange County Sanitation District Board of Directors, James M. Ferryman, Chair

2007 • American Membrane Technology Association (AMTA) Outstanding Member Award Award recognized OCWD and staff for the Groundwater Replenishment System • Public Relations Society of America, Orange County Chapter (OCPRSA) Protos Award The award was presented to the Orange County Water District in the category of "Editorial Article for a Trade Publication" for an article written for Pollution Engineering magazine about the Groundwater Replenishment System • Public Relations Society of America, Orange County Chapter (OCPRSA) Award of Excellence The award was presented to the Orange County Water District in the category of “Multicultural Outreach” for the Groundwater Replenishment System education and outreach campaign