skip to main content
skip to newscasts

Tuesday, November 28, 2023

Public News Service Logo
facebook instagram linkedin reddit youtube twitter
view newscast page
play newscast audioPlay

Air pollution linked to coal plants more deadly than previously thought; Israel-Hamas truce extends as aid reaches Gaza; high school seniors face big college application challenges.

view newscast page
play newscast audioPlay

House Republicans differ on January 6th footage, Speaker Johnson says any Ukraine funding must include changes to border policy and former New Jersey Governor Christie says former President Trump is fueling anti-Semitism and hate.

view newscast page
play newscast audioPlay

Rural low income youth, especially boys, experience greater economic mobility than those in cities, a new government rule should help level the playing field for small poultry growers, and the Kansas Governor wants her state to expand Medicaid.

Los Angeles Reuses Lots of Stormwater, but Wants to Save More

play audio
Play

Thursday, May 4, 2023   

By Caleigh Wells for KCRW.
Broadcast version by Suzanne Potter for California News Service reporting for the Solutions Journalism Network-Public News Service Collaboration


Hours after another storm soaked Southern California, LA County’s principal stormwater engineer Sterling Klippel stands at the base of the San Gabriel Dam, looking like a kid in a candy store. He gazes in awe at the thousands of gallons of stormwater rushing through this dam every second.

“Just this October, this facility was completely drained,” he says.

This dam is almost 300 feet deep in the middle, and it went from empty to full in less than six months. And it’s just one of more than a dozen dams in the county.

Soggy Southern California has gotten more than two feet of rain this season – so far, about double an average year, making it one of the top 10 wettest years on record.

“It's amazing to see it when it's here, and every drop is precious. So we do our best to capture every drop of it,” says Klippel. 

Los Angeles County is on track to capture enough stormwater this year to quench the year-round water needs of more than a quarter of the county’s residents. It’s good news, but there is still a lot of work to do to meet local water use goals.

'A good job of for the infrastructure we have'

“We're making strides, and we just need to make sure that we don't let our foot off the gas,” says Bruce Reznik. He leads the nonprofit LA Waterkeeper, which is the city’s self-proclaimed water watchdog. “We have done a good job, for the infrastructure we have.”

That’s thanks to nearly century-old infrastructure that’s still working. 

Trickling waterfalls in the San Gabriel Mountains typically drain into giant dams like the San Gabriel Dam, which was built in the 1930s. When they get full, public works officials open the floodgates at the bottom of the dams to send the water downstream.

“From there, we release it and we send it down to our spreading grounds, which are these large basins,” says Klippel. “The water then will percolate through this kind of sandy gravelly geology here and recharge these local aquifers where later it's pumped out for local municipal water use.”

'A century worth of poor planning'

Klippel says LA County gets about a third of its water from those aquifers while the rest is imported either from Northern California or from the Colorado River.

But the City of LA’s goal is to flip that equation by 2035, using two-thirds local water and cutting Southern California's dependence on imported water. Reznik says the local infrastructure is just not set up for that yet.

“A lot of that is because … so much of LA is channelized and concretized and urbanized, that we're not letting Mother Nature do its job of capturing the stormwater, letting it recharge our groundwater,” he says. “We are trying to undo a century worth of poor planning around water, and it's going to take us a while.”

LA is so developed and has such high flood risk that for decades the county has focused on funneling water as quickly and safely as possible straight to the ocean. 

In big storms like we’ve seen this winter, that’s happening no matter how hard Klippel tries to stop it. “With so much water in the system at this point, there is some water that's still making its way to the ocean.”

Infrastructure woes can get solved with big investments, but Californians decided years ago that two-thirds of voters need to approve new taxes for stormwater capture. That’s an extremely high bar.

“Unfortunately, it's actually very hard to fund stormwater projects,” says Resnik. “There has been a decade's long lack of funding for stormwater infrastructure.”

Which is why people like Reznik were so thrilled when county voters passed Measure W five years ago that devotes $280 million each year to water projects. 

But as the climate crisis worsens, more money has to go toward maintaining current infrastructure. For example, wildfire burn scars result in more loose soil falling into the dams and leaving less space for water.

Officials anticipate it’ll take several billion dollars to hit that 2035 goal to use mostly local water.

“Which seems pretty ambitious to me,” says USC Assistant Professor of civil and environmental engineering Dan McCurry. He says stormwater capture is actually one of the best tools we’ve got for cutting down our reliance on imported water.

“We're not talking about complicated, energy-intensive, expensive engineering treatment processes like we have to do for wastewater reuse. So in some sense, stormwater capture – when it's available – is low-hanging fruit.”


Caleigh Wells wrote this article for KCRW.


get more stories like this via email

more stories
Based on current environmental impacts, residents of Petersburg have a life expectancy 10 years lower than the national average, according to U.S. News & World Report. (Adobe Stock)

Environment

play sound

The Federal Energy Regulatory Commission approved a plan extending a natural-gas pipeline in Virginia. The Virginia Reliability Plan and Transcot's …


Social Issues

play sound

Today is Giving Tuesday, a day when millions of Americans are expected to make charitable donations. But it can also be a field day for scammers…

Health and Wellness

play sound

Starting Friday, North Carolinians will have greater access to health care as the long-awaited Medicaid expansion is launched. Medicaid will …


Democrats' trust in the media has fallen 12 points over the past year, to 58%, and compares with 11% among Republicans and 29% among independents, according to Gallup. (Christian Schwier/Adobe Stock)

Social Issues

play sound

A new project in Southern Arizona aims to support local reporting and enable greater access to local news and information. Earlier this month…

Social Issues

play sound

As the weather turns colder, two groups of people in one North Dakota city that are generations apart appear to be in good shape to navigate housing …

Social Issues

play sound

Illinois high school seniors have new hurdles to overcome to get to college. High school students are waiting several extra weeks to get their hands …

Environment

play sound

Clean-energy companies and supporters are calling on federal officials to prioritize the development of charging infrastructure for EV powered medium …

 

Phone: 303.448.9105 Toll Free: 888.891.9416 Fax: 208.247.1830 Your trusted member- and audience-supported news source since 1996 Copyright 2021