Air pollution in San Francisco comes primarily from transportation emissions, such as from vehicles, planes, and ships.
Population growth, increasing water demand, loss of habitat and water pollution continue to present difficulties in planning for the watershed's future. The watershed contains one of the world's largest water supply systems, the federal Central Valley ProjectExitand the State Water Project.
Which is likely to be the most serious impact of climate change on San Francisco's water supply? Groundwater supplies will dry up.
No, East Bay water is considered some of the best in the country.
Owned by the city of San Francisco, Hetch Hetchy Reservoir provides water to 2.7 million residents and businesses in the San Francisco Bay Area.
The Hetch Hetchy watershed, an area located in Yosemite National Park, is the major source of water for all of San Francisco's water needs. Spring snowmelt runs down the Tuolumne River and fills Hetch Hetchy, the largest reservoir in the Hetch Hetchy water system.
Our water is moderately hard to hard: 90 percent of samples are in the range of 115-324 mg/L (7-19 gpg). Because our water is a variable blend of surface and well water, hardness changes throughout the year and by location in the District's service area.
This water comes from three sources: 80% is imported surface water from the California State Water Project, 10% is local rain runoff that is stored in Del Valle Reservoir, and 10% is groundwater from local wells. Most of our water supply starts in the Sierra Nevada as rain and snow- melt.
Our groundwater supply comes from the Niles Cone Groundwater Basin which underlies the Tri-City area and is replenished through infiltration from local rainwater, runoff from the Alameda Creek watershed, and water from the South Bay Aqueduct.
Livermore Municipal Water receives its wholesale water supply from the Zone 7 Water Agency, which treats water from the State Water Project in the Sacramento-San Joaquin Delta and groundwater wells in Pleasanton.
The waters between North Beach and Alcatraz are not shark infested, as urban legends would have you believe. Most sharks can't live in the bay's fresh water, as their fatty livers aren't functionally flotational without salination.
The big danger is the rip currents that form just off the beaches in San Francisco, especially at Ocean Beach. There are some small warning signs, but most beach-goers don't really understand the risks. Almost every year, people drown at Ocean Beach, and most of those deaths could have been prevented.
Sharks of San Franscisco Bay AreaAround 11 species of Sharks are found in the Bay itself - including Leopard Shark, Pacific Angel Shark, Brown Smoothhound, Broadnose Sevengill, Soupfin Shark. The Leopard Shark is the most common in the Bay. Small Spiny Dogfish are found swimming on the bottom of the Bay.
Thankfully, while Great Whites are numerous along the California coast, the menacing shark infrequently ventures under the Golden Gate Bridge to pay us a visit. However, there are 11 different species of shark that do call the San Francisco Bay home.
The chill is in part a result of San Francisco's location between the ocean and the Central Valley, according to Diana Henderson, a forecaster with the National Weather Service Forecast Office for the San Francisco Bay Area/Monterey. To the west, the marine layer sits above the cold Pacific.
The Bridge to Bridge swim is about 6.2 miles (10K). The swim begins under the Golden Gate Bridge and curves around San Francisco to end at the Bay Bridge.
The water is shallow for long distances and is fine for wading and swimming. The north end of the beach has rocky tidepools (see below) and the Crab Cove Visitor Center. Coyote Point Recreation Area, San Mateo: This is one of the very few decent swim beaches on San Francisco Bay on the Peninsula.
First visited San Francisco & Berkeley the summer of 1955. Moved to northern California the summer of 1963. Never heard anyone call the area around the 5 bays “The Bay.” “The Bay” is the name of the the Hudson's Bay Company's department stories in Canada.
