The Border: Sharing a Problem and a Solution
The Tijuana River flows through two countries. It passes through the poverty-stricken but growing community of Tijuana, Mexico and southern San Diego County where it empties into the Tijuana Estuary. Raw sewage from Tijuana and the surrounding watershed is dumped into the river as it flows to the Pacific Ocean. Littoral currents transport the waste north to beaches in San Diego County, creating health risks and forcing beach closures. Repeated attempts to remedy the situation have been made since 1930, however, successful sewage treatment has not been attained. Lack of money from Mexico and different standards for sewage treatment between the United States and Mexico have made this situation difficult to remedy.
Sibley, Carol A.
"The Border: Sharing a Problem and a Solution,"
Bulletin of the Southern California Academy of Sciences:
Available at: http://scholar.oxy.edu/scas/vol95/iss1/4