14.5 billion gallons of raw sewage from Mexico entered US during storm
The storm that hit the San Diego-Tijuana region on Monday [Jan. 22] sent more than 14.5 billion gallons of untreated raw sewage into California from Mexico, according to figures released by the International Boundary and Water Commission (IJC).
On Tuesday, as the storm moved out of the area, the amount of sewage entering the U.S. dropped to 845 million gallons.
The agency said it has not seen this type of pollution in the area in 30 years.
Most of the effluent flows through the Tijuana River Valley along the river, which originates in Mexico, but a lot of the untreated sewage also enters the U.S. via canyons and ravines that feed the river north of the border.