Map of MWD of California.
This water district delivers over 1.7 billion gallons of water daily to an area of about 5,200 square feet. That is over 19 million people in Los Angeles, Orange, San Diego, Riverside,San Bernardino, and Ventura counties.
Orange County itself gets half of it water from local sources and then the other half from Northern Calfornia and the Colorado River. Orange County also does not operate its water basin in a safe yield mode. They pump as much groundwater as they need from the basin ata time and average its use over a few years. As a consequence, the ground as been sinking from the overpumping.
Sinkholes can occur after overpumping.
Another concern in Orange County is salt water intrusion. They have one of the most aggressive prevention systems in the country- this includes the Alamintos and Talbert Gap. There is also a desalination plant near Santa Barbara, CA but it is too exensive still to put into use yet.
On to air quality, Los Angeles is the direst city concerning ozone in the United States. Just being near it for the short time we were for the talk at the University, my throat hurt fomr the air pollution. The amount of automobiles in the city are to blame- pushing the PM 2.5 and PM 10 through the roof. Particle matter 2.5 is inhalable (the one to be more concerned about) and Particle matter 10 gets caught in your mucus in your lungs. Los Angele's situation is partly to blmae for it location; the city if located in a valley so all the pollution is trapped there. The CA-ARB, California Air Resources Board has been monitoring the citie's air quality since the 1970s.
Los Angeles' location is partly to blame for the air qualtiy.
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