Coronado's Paradise Lost: Sewage Chokes California Beaches

Coronado, California, a once-pristine beach town, is experiencing repeated beach closures due to severe sewage contamination originating from Mexico. The Tijuana River carries untreated wastewater into the Pacific Ocean, with currents pushing an estimated 30 million gallons of polluted water north daily. This ongoing crisis, which has released over 10 billion gallons of raw sewage since 2018, has transformed the area into what residents describe as 'paradise lost.'

The contamination, initially concentrated near the border at Imperial Beach, has now significantly impacted Coronado, leading to water access restrictions for over 129 days in 2025 alone. The raw sewage poses serious health risks, including gastrointestinal and respiratory problems. Local businesses, such as surf schools and rental shops, are reporting substantial economic losses as beach closures deter visitors and impact revenue.

While residents blame both countries for the crisis, citing Mexico's wastewater overflow and the U.S.'s slow response to infrastructure solutions, the challenge is immense. Environmental protection efforts are underway, with significant funding approved, but officials estimate around $1 billion and approximately two years for repairs once initiated.