Region
California
San Joaquin Valley
10
Calaveras County
6
Barstow Region
3
San Gabriel River Valley
3
San Gabriel River Watershed
3
Los Angeles
2
Los Angeles Region
2
Modesto
2
Riverside County
2
San Gabriel River Watershed (Calif.)
2
San Joaquin County
2
Santa Ana River
2
Victor Valley
2
Alameda County
1
Apache County
1
Arizona
1
Colorado
1
Death Valley National Park (Calif. and Nev.)
1
Folsom Dam Region
1
Inyo County
1
Kern County
1
Lancaster
1
Livermore Valley
1
Mojave River
1
Norton Air Force Base
1
Sacramento
1
San Francisco Bay
1
San Joaquin River Watershed
1
Tulare Lake Watershed (Calif.)
1
United States
1
Yucca Valley Region
1