Certified labs near El Centro, California
San Diego, California · (714) 837-5866
91 mi away
San Diego, California · (306) 880-4452
95 mi away
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Official lab list for California
Recommended tests
- Every year: bacteria (total coliform and E. coli), nitrate, pH and total dissolved solids — CDC
Many labs accept mailed samples, so a lab a few hours away may still work for you.