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San Diego County

Trestles

3 sampling stations

San Onofre State Beach in San Diego County has 3 monitoring stations with official enterococcus lab testing. Latest official lab sample: Mar 23, 2026.

  1. 1
    Trestles San Mateo Crk
    EH-520
    →
  2. 2
    Trail 6
    SC-010
    →
  3. 3
    Old Man's north SO
    SC-020
    →