With its proposed Doheny desalination plant facing hurdles because of costs and a lack of partner water districts, the South Coast Water District board has agreed to spend $73,000 to study a scaled-down alternative. The district has spent $7.9 million so far for the preliminary design, environmental impact report and other early development steps for a standalone four-well plant near Doheny State Beach. And it is continuing its pursuit of necessary permits, which it hopes to have in hand by mid-2021.