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Old 05-12-2013, 03:16 PM
Status: "Fist City" (set 22 days ago)
 
Location: Los Angeles California
10,515 posts, read 8,994,475 times
Reputation: 4644
Default Where does LA get its water?!!!

I didn't question it when I lived here before, but I do now. You've got over 3 million ppl in city of Los Angeles alone, not to mention the surrounding cities, relentless wildfires, extremely hot temps, car washes everywhere, extremely wasteful users, no rationing, etc. Are they recycling toilet water and not telling us?
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Old 05-12-2013, 03:25 PM
 
Location: East of Seattle, originally from SF Bay Area
13,679 posts, read 15,678,151 times
Reputation: 9059
I used to work for the water district in Oakland, and my boss had come from LA Department of water and power. They do use a lot, over 200 billion gallons/year last time I remember seeing data. Probably half comes from the Sierras, snowmelt coming through the LA Aqueduct. A bit less than that comes from the California Aqueduct all the way from the Sacramento area, with some from the Colorado River and maybe 10% from local groundwater, though it's pretty polluted and not good for drinking. Talk of a split between Northern and Southern CA over the years has been largely based on water, and it will become even more controversial in the years to come. I'm still in the utilities business but here
in the Seattle area we encourage conservation even with 44" of rain a year and a plentiful water supply.
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Old 05-12-2013, 03:28 PM
 
Location: State of Relaxation
31,231 posts, read 16,472,166 times
Reputation: 21377
They drained Owens Lake in the Sierras to water LA, displacing a sizable farming community as a result, and they were trying to get some of Mono Lake, I'm not sure if that project was stopped on environmental grounds, or not. They also get Sacramento River water from the Bay Area, through a viaduct. And I think they get some Colorado River water. I read recently they're starting to used desalinated water now, as well.
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Old 05-12-2013, 03:32 PM
 
Location: So Cal
23,891 posts, read 17,647,992 times
Reputation: 22482
Quote:
Originally Posted by Ruth4Truth View Post
They drained Owens Lake in the Sierras to water LA, displacing a sizable farming community as a result, and they were trying to get some of Mono Lake, I'm not sure if that project was stopped on environmental grounds, or not. They also get Sacramento River water from the Bay Area, through a viaduct. And I think they get some Colorado River water. I read recently they're starting to used desalinated water now, as well.
Desalinated water plants are expensive to operate. I think Dubai has a huge water processing plant. I know up north of LA, the Santa Barbara area was looking to put in a large desalination plant, but I think cost became an issue.... I forget the exact details.
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Old 05-12-2013, 03:34 PM
 
Location: State of Relaxation
31,231 posts, read 16,472,166 times
Reputation: 21377
Desalination takes a LOT of energy! Dubai can afford it. They don't have much choice, anyway.
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Old 05-12-2013, 03:38 PM
 
Location: Southern California
12,237 posts, read 8,865,906 times
Reputation: 7937
Info:

https://www.ladwp.com/ladwp/faces/la...3Dapfkigw7b_17

The Center for Land Use Interpretation

California State Water Project-

[it's a fascinating subject]
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Old 05-12-2013, 04:44 PM
 
Location: Long Island, NY
797 posts, read 423,134 times
Reputation: 181
They could just take water from the pacific ocean...
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Old 05-12-2013, 04:59 PM
 
2,624 posts, read 2,500,608 times
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You can refer to this link for answers to a lot of questions.
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Old 05-12-2013, 05:16 PM
 
4,869 posts, read 5,458,397 times
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The foothill communities, Pasadena and their kin get about 1/3 of their water from the San Gabriels, believe it or not. There is snow in the winter and reservoirs.
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Old 05-12-2013, 05:19 PM
 
4,869 posts, read 5,458,397 times
Reputation: 3070
Quote:
Originally Posted by Ruth4Truth View Post
They drained Owens Lake in the Sierras to water LA, displacing a sizable farming community as a result, and they were trying to get some of Mono Lake, I'm not sure if that project was stopped on environmental grounds, or not. They also get Sacramento River water from the Bay Area, through a viaduct. And I think they get some Colorado River water. I read recently they're starting to used desalinated water now, as well.
Yes, they did for a while, but through environmental litigation, they had to back off from that quite a lot, they still get some, but not nearly as much as before. And yes the Colorado river is significant, more so than the Sacramento River.

And like I said, some regional sources from reservoirs in the San Gabriels.
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