Coronado Mayor John Duncan said his biggest concern was that "the reputation as 'the toilet of Mexico'" would hurt the city.

Imperial Beach, California, is a city with a dirty secret.

The Tijuana River sewage crisis continues to grow as a new study shows pollutants in the wastewater are degrading air quality ...

Detection of northward-drifting contamination out of the Tijuana River prompted the San Diego County Department of Environmental Health and Quality Monday to issue a water pollution advisory for a ...

EPA chief Lee Zeldin said the U.S. and Mexico were close to a deal that would stop sewage being dumped off the coast of San ...

These bacteria-ridden beaches failed to meet state health standards for recreational waters, the Surfrider Foundation says.

An expansion to the South Bay International Wastewater Treatment Plant is in the works Wednesday and could be just 100 days away, according to an announcement by two federal agencies.