The United States and Mexico have signed an agreement outlining specific steps, funds and a timetable to clean up the longstanding problem of the Tijuana River pouring sewage across the border and pol

The agreement calls for Mexico to spend $93 million to complete water infrastructure projects under an expedited timeline.

The United States and Mexico signed an agreement on Thursday to end the flow of raw sewage into the Tijuana River, which crosses the border into California and for years has contaminated and closed beaches and caused illnesses in both countries.