Concern grows over "toxic air contaminants" released at city's mega wastewater plant, says the South Coast Air Quality Management District, after 17 million gal of untreated sewage was dumped into the Pacific when the system clogged.

Los Angeles’ Hyperion Water Reclamation Plant spilled 6% of its daily load into Santa Monica Bay on July 11 due to a clog, but public was not notified of contamination for nearly 18 hours after the incident started at 7pm PST.