Certified labs near San Francisco, California

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Garratt-Callahan Laboratory

Burlingame, California · (650) 697-5811

37 mi away

Burlingame, California · (623) 298-1015

37 mi away

Petaluma, California · (707) 769-3128

38 mi away

Oakland, California · (510) 704-8930

41 mi away

Emeryville, California · (510) 653-0824

41 mi away

San Mateo, California · (650) 573-2500

42 mi away

San Carlos, California · (650) 799-9204

44 mi away

San Leandro, California · (510) 895-3675

47 mi away

Hayward, California · (510) 266-8183

50 mi away

Santa Rosa, California · (707) 527-7574

56 mi away

Santa Rosa, California · (707) 544-8807

58 mi away

Fairfield, California · (707) 207-7760

61 mi away

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.