Tuesday, Aug. 8, 2017

Pure go-ahead

OK for San Diego to recycle sewage into drinking water

The Point Loma Wastewater Treatment Plant sits just above the ocean. NICHOLAS McVICKER / KPBS San Diego

KPBS San Diego

San Diego Union-Tribune

Federal and state water quality regulators have cleared the way for San Diego to avoid costly upgrades to an outdated wastewater treatment plant, as long as local officials continue to pursue a $3 billion water recycling program. Monday, the EPA and the San Diego Regional Water Quality Control Board approved the city's permit application to operate the Point Loma Wastewater Treatment Plant for another five years.

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Plan to recharge groundwater draws concern

Water Deeply

The Semitropic Water Storage District proposes building a new reservoir on part of an ancient lakebed in the San Joaquin Valley, then using it to capture flood flows to recharge groundwater. It could be an effective method, but others in the region fear it will deprive them of water.

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Salton Sea: The good, the bad and the algae

Science Daily

Sandia National Laboratories is testing whether one of California's largest and most polluted lakes can transform into one of its most productive and profitable. The Salton Sea has well-documented problems due to elevated levels of nitrogen and phosphorus. Algae thrives on these elements — which causes environmental problems but could also be a solution to those problems.

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