Barnstable County Water Quality Laboratory

Barnstable County Water Quality Laboratory is on the official list: MassDEP certified; accepts private well samples. Updated 2026-10-17.

Barnstable, Massachusetts

Call ahead: certification lists include some labs that only test for public water systems.

Certified by: MassDEP certified
Accepts samples from private citizens: ✓
Tests it is certified for: Bacteria (coliform / E. coli)
Official scope: Offers services to residential customers. Analyses offered: Microbiology (Bacteria); Chemistry (PFAS, Lead, etc.). MassDEP lab ID M-MA009
Contact: 3195 Main Street, Barnstable, MA, 02630
(508) 375-6605
Source: MassDEP – Certified labs offering services to private well owners (12/18/2025)
Licence: Public record (MassDEP)
Record refreshed: 2026-10-17

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