LADPW: Los Angeles County Department of Public Works.
RWQCB-LA: Los Angeles Regional Water Quality Control Board.
RWQCB-Santa Ana: Santa Ana Regional Water Quality Control Board.
Sanitation Districts of LA County: Information on wastewater treatment and solid waste facilities, water reuse, industrial waste, and Household Hazardous Waste Roundups.
CalPhotos: California Dept. of Water Resources: Form to look for photographs from more than 17,000 images of California's natural resources from the California Dept. of Water Resources.