Labs copied from the official Pennsylvania certified lab list (last verified 2026-10-27). All Pennsylvania labs
The official Pennsylvania list shows 1 certified lab in Berks County. Call before you sample to confirm the lab accepts private well water and to ask about bottles, prices and drop-off times.
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What to test for
Test every year for total coliform bacteria, nitrates, total dissolved solids, and pH. Use a state-certified drinking water laboratory. Source
Penn State Extension: about half of PA private wells that have been tested show at least one water-quality problem, yet only about half of wells have ever been tested. Source
2025 Penn State citizen-science study: PFAS detected in 65% of 167 private wells sampled statewide; 18% exceeded EPA health-related limits, with higher detections in southeastern PA. Source
Your Berks County or local health department can tell you about local well testing, including any free or low-cost programs. State contact: PA DEP — private well water testing guidance.
The official Pennsylvania certified lab list shows 1 lab in Berks County; they are listed on this page with phone numbers. Call first to confirm they accept private well samples.
How often should I test my well?
EPA recommends testing every year for total coliform bacteria, nitrates, total dissolved solids and pH, and testing right away after flooding, well repairs, or a change in taste, color or smell.