XPost: alt.journalism, talk.politics.guns, talk.politics.misc   
   From: stupid.liberal@latimes.com   
      
   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   
      
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