These were the dirtiest beaches in California in 2022:
- Santa Monica Pier (Los Angeles County)
- Linda Mar Beach (San Mateo County)
- Marlin Park (San Mateo County)
- Erckenbrack Park (San Mateo County)
- Tijuana River Mouth (San Diego County)
- Pillar Point Harbor at Capistrano Avenue (San Mateo County)
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