Chester County, PA well water testing
Short answer: The Chester County Health Department lists two well water testing labs in the county: Brandywine Science Center in Kennett Square, 610-444-9850, and H.O. Thompson Testing Lab in Parkesburg, 610-593-5030. Call ahead about kits, drop-off and prices. Penn State's mail-in lab is another option, with packages from $60.
Labs on the county health department's list
| Lab | Address | Phone |
|---|---|---|
| Brandywine Science Center, Inc. | 204 Line Road, Kennett Square | 610-444-9850 |
| H.O. Thompson Testing Lab | 104 Valley View Drive, Parkesburg | 610-593-5030 |
Source: Chester County Health Department. [source] The same list includes labs in neighboring counties.
Mail-in option: Penn State
Penn State's DEP-accredited lab offers packages from $60 (standard) to $220 (extensive). Kits are at many county extension offices. Bacteria samples must arrive within 30 hours, and the lab can't accept them on a Friday. [source] See our Pennsylvania guide.
County contact
Chester County Health Department, 601 Westtown Road, Suite 295, West Chester, PA 19380; 610-344-6225. [source]
FAQ
Where can I get my well water tested in Chester County, Pennsylvania?
The Chester County Health Department lists two well water testing labs in the county: Brandywine Science Center in Kennett Square, 610-444-9850, and H.O. Thompson Testing Lab in Parkesburg, 610-593-5030. Call ahead about kits, drop-off and prices. Penn State's mail-in lab is another option, with packages from $60.
Sources
- Chester County Health Department – Well Water Testing Labs (accessed 2026-10-23)
- Penn State AASL – Drinking Water Testing (fees) (accessed 2026-10-23)
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