The investigation remains ongoing, police said.
About one-million gallons of raw sewage per day has flowed into the surrounding marshland between Port Chicago an Pittsburg.
A $175 million seawall project will shore up a wastewater treatment plant and a sewage tunnel on the southern end of San Francisco's Ocean Beach to help protect the area from erosion.
Firefighters rescued an injured man trapped inside a pipe underneath Great Highway in San Francisco's Outer Sunset neighborhood in the early hours Sunday, a fire department spokesman said.
According to a new lawsuit filed by the Environmental Protection Agency and California water officials, the releases have been happening since 2016.
What looked like bright green slime was spotted oozing from sewers onto the streets of New York City, leaving residents puzzled.