While this week�s atmospheric river drenched Southern California with
record-breaking rainfall, some water managers were busy capturing some of
that runoff to save for dry days ahead. Others were busy fending off an
environmental disaster.

Los Angeles County Public Works captured 2.7 billion gallons of stormwater
as the rain fell in sheets, public information officer Liz Vazquez told
CNN in an email � enough water for 65,600 residents for a year.

In all, stormwater capture facilities across Southern California snagged
around 15,000 acre-feet � or around 4.9 billion gallons � for recharge
into groundwater since Sunday night, according to Rebecca Kimitch, a
spokesperson for Metropolitan Water District of Southern California.

One of those agencies is the Las Virgenes Municipal Water District, whose
treatment plant was slammed by nearly 10 inches of rain at a rate that had
officials scrambling for a workaround to prevent raw sewage from being
discharged into Santa Monica Bay at Surf Rider Beach.

At the peak of the storm, the plant was taking in 38 million gallons of
water a day. A typical day�s intake is more like 7.5 million gallons, but
it was built to treat more than that � around 12 million gallons a day,
said Mike McNutt, an LVMWD spokesperson.

What fell earlier this week was a �huge and rapid increase� in water
intake, he said, which majorly strained the functionality of the plant and
could have resulted in an environmental disaster.

As the water rose, staff played a bit of a shell game with its resources,
sending some of the water to a balancing pond that�s typically used later
in the treatment process and then pumped it back to the beginning of the
plant for treatment.

Malibu Creek, where LVMWD discharges some of its recycled water, is highly
protected by the Environmental Protection Agency, McNutt said, and �the
staff truly averted an environmental disaster where raw sewage would have
been sent downstream.�

Water managers across the West are facing the urgent need to conserve
rainfall to prepare for the next drought. But many of these facilities
weren�t designed for the most extreme rain events � which the region will
still see, even as the overall climate gets hotter and drier.

Most facilities �are intended for low and medium-flow events � rainfall of
up to 1.5 inches a day,� Kimitch said. �Flood control and safety are the
primary concerns during high flow events like this.�

With the reservoirs across the state well above average for this time of
the year, some like Lake Oroville and Shasta Lake have been coordinating
flood control releases to make room for runoff from the soaking storms
that hit the state recently, said Ryan Endean of the California Department
of Water Resources.

Water in Lake Oroville, for instance, stands 116% of average. Some of what
it released will run through the State Water Project to the San Luis
Reservoir �where it will be captured to maintain overall water supply,�
Endean said.

�These releases are necessary to provide critical flood protection for
downstream communities and ensure that the reservoirs have room for
storing snowmelt runoff in the spring,� Endean explained.

In Los Angeles County, the State Water Project released excess storm water
from Pyramid Lake that is being �captured and stored downstream in Lake
Piru by the United Conservation District for future water supply,� Endean
added, explaining that the state coordinates with local water agencies �to
capture and store as much water as possible from these types of releases.�

https://www.cnn.com/2024/02/07/us/california-water-treatment-savings-
drought-climate/index.html?iid=cnn_buildContentRecirc_end_recirc

On 2/25/24 11:45 PM, Left-wing Headlines wrote:
> While this week’s atmospheric river drenched Southern California with
> record-breaking rainfall, some water managers were busy capturing some of
> that runoff to save for dry days ahead. Others were busy fending off an
> environmental disaster.

Wait until it all seeps down into the earthquake faults ...