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Philip Salata

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A new map of the Tijuana River Valley pollution

Bacteria levels that are at times too high for the lab to measure, and a melange of industrial chemicals, viruses, pesticides, PFAS and volatile organic compounds — San Diego Coastkeeper just released its 2025 Tijuana River Valley Water Quality Monitoring Report, and those are among its findings. San Diego Coastkeeper has also come out with a new interactive map that compares data across all Tijuana River Valley monitoring sites.

There may be no surprises if you are familiar with the issue, but there are lots of details and data for the curious. Check it out.

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