| Sections |
| 2009 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 2008 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 2007 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 2006 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 2005 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 2004 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 2003 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 2002 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 2001 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 2000 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1999 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1998 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1997 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1996 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1995 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1994 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1993 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1992 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1991 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1990 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1989 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1988 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1987 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |
| Fullerton |
| Glendale |
| Inland Empire |
| Las Virgenes |
| Long Beach |
| Los Angeles |
| MWDOC |
| Pasadena |
| San Diego CWA |
| San Fernando |
| San Marino |
| Santa Ana |
| Santa Monica |
| Three Valleys |
| Torrance |
| Upper San Gabriel |
| West Basin |
| Western |
| 1986 |
| Anaheim |
| Beverly Hills |
| Burbank |
| Calleguas |
| Central Basin |
| Coastal |
| Compton |
| Eastern |
| Foothill |