Certified labs near Williamsport, Pennsylvania
Lancaster, Pennsylvania · (717) 656-2300
89 mi away
Pittsburgh, Pennsylvania · (412) 922-4000
167 mi away
Midlothian, Virginia · (804) 763-1200
265 mi away
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Labs on Pennsylvania’s official list
- Environmental Service Laboratories, Inc - Northern Division, Montoursville · ~9 miListed in Pennsylvania DEP’s certified lab list. See the official list → (checked 2024-06-11)
- Pace Analytical Services LLC - Williamsport, PA, Williamsport · ~12 miListed in Pennsylvania DEP’s certified lab list. See the official list → (checked 2024-06-11)
- Williamsport Sanitary Authority Laboratories, Williamsport · ~12 miListed in Pennsylvania DEP’s certified lab list. See the official list → (checked 2024-06-11)
- PAW Milton Lab, Milton · ~20 miListed in Pennsylvania DEP’s certified lab list. See the official list → (checked 2024-06-11)
- Niagara Bottling, LLC, Howard · ~37 miListed in Pennsylvania DEP’s certified lab list. See the official list → (checked 2024-06-11)
- Laurel Creek Filter Plant, Milroy · ~41 miListed in Pennsylvania DEP’s certified lab list. See the official list → (checked 2024-06-11)
- Pace Analytical Services, LLC - Wysox, Wysox · ~52 miListed in Pennsylvania DEP’s certified lab list. See the official list → (checked 2024-06-11)
- Todd Giddings and Associates Inc, State College · ~52 miListed in Pennsylvania DEP’s certified lab list. See the official list → (checked 2024-06-11)
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Official lab list for Pennsylvania
Pennsylvania DEP – private well water testingPennsylvania's environmental agency explains well testing and links to its reports of labs accredited for drinking water.www.pa.gov · checked 2026-10-18Pennsylvania Department of Environmental ProtectionThis state agency certifies the labs that may test drinking water. Use its list to pick a certified lab for your well sample.cedatareporting.pa.gov · checked 2026-10-18 · link via EPA
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.