| 2019 |
Oyuna Jenkins |
City of Escondido |
| 2018 |
Kurtis Westbrook |
City of Vacaville |
| 2017 |
Suguna Pillay |
City of Palo Alto |
| 2016 |
Nikki Crumpler |
Big Bear Area Regional Wastewater Agency |
| 2015 |
Scott Jacobs |
City of Modesto |
| 2014 |
Nikki Flores |
Big Bear Area Regional Wastewater Agency |
| 2013 |
Jackie McCloud |
City of Watsonville |
| 2012 |
Christina Harshell |
Fairfield-Suisun Sewer District |
| 2011 |
Mary Anne Johnson |
Delta Diablo Sanitation District |
| 2010 |
Ku‐Chung Chen |
City of Simi Valley |
| 2009 |
Devina Douglas |
S. San Luis Obispo County SD |
| 2008 |
Sara Burke |
South Bayside System Authroity |
| 2007 |
Kumudini Dharmawardana |
City of Livermore |
| 2006 |
Mary Anne Johnson |
Delta Diablo Sanitation District |
| 2005 |
Jenny Bender |
Central Marin Sanitation Agency |
| 2004 |
Laura Kincaid-Rohrer |
City of Merced |
| 2003 |
Marshall Dawson |
Vallejo SFCD |
| 2002 |
Marian Rotnicki |
Novato San District |
| 2001 |
Giti Heravian |
City of American Canyon |
| 2000 |
Kathleen Werner |
Goleta Sanitary District |
| 1999 |
Robert Sellards |
Big Bear Area Regional Wastewater Agency |
| 1998 |
Francóis Rodigari |
East Bay MUD |
| 1997 |
Erich Delmas |
City of Merced |
| 1996 |
Heather Duckett |
City of San Diego |
| 1995 |
Beth Amheiser |
City of Palm Springs |
| 1994 |
Lonnie Butler |
San Francisco |
| 1993 |
Nancy Pagan |
Redding |
| 1992 |
Jeannette Walter |
East Bay MUD |
| 1991 |
Robert Berger |
East Bay MUD |
| 1990 |
Frank Lewandowski |
Encina |
| 1989 |
Frank Beeler |
Lodi |
| 1988 |
Guss Pennell |
Oceanside |
| 1987 |
Lynda Taylor |
Union SD |
| 1986 |
Bev Franza |
San Mateo |
| 1985 |
Bhupinder Dhaliwal |
CCCSD |
| 1984 |
Kacey Karmendy |
San Mateo |