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San Mateo County
San Gregorio State Beach
2 sampling stations
San Gregorio State Beach in San Mateo County has 2 monitoring stations with official enterococcus lab testing. Today's rating: Low. Latest official lab sample: Oct 5, 2026.
San Gregorio State Beach in San Mateo County has 2 monitoring stations with official enterococcus lab testing. Today's rating: Low. Latest official lab sample: Oct 5, 2026.