Tijuana, San Diego and underground tunnel
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As the U.S. and Mexico pursue $800 million in upgrades to wastewater facilities on the border, local officials are working on a smaller fix to improve conditions as soon as next year.
Severely polluted water flows through the Tijuana River near the Saturn Boulevard hotspot in Imperial Beach. (File photo by Thomas Murphy/Times of San Diego) This story was originally published by CalMatters. Sign up for their newsletters. Communities ...