Re “Sewage nightmares in Mexico go beyond Tijuana” (Sept. 19): The problem begins in the hills and valleys surrounding Tijuana, Mexico. These feed into the Tijuana River in Mexico. There is no ...

The Tijuana River in San Diego has sickened surfers, swimmers and Navy SEALS for decades. A new report explores ways to clean ...

The seven-mile elevated highway, known as the Viaducto Elevado, was built by the Mexican military, as were other major ...

SAN DIEGO (AP) — The United States and Mexico have signed an agreement outlining specific steps and a new timetable to clean up the longstanding problem of the Tijuana River pouring sewage across the ...