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Water treatment in Pennsylvania

Hard water, corrosive wells, PFAS & Philly lead lines. Free water analysis and local installs across southeastern PA.

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From our base in Wilmington, DE, we work across southeastern Pennsylvania. Pennsylvania has more than a million private wells serving about 3.5 million people, and the state doesn't regulate them[1][2], so testing is up to the owner. On public water, Pennsylvania's PFAS limits are 14 ppt for PFOA and 18 ppt for PFOS[3], and the federal 4.0 ppt limits take effect in 2029[4].

  • Corrosive wells are common in Chester County[5].
  • Radon: 14% of USGS-sampled wells exceeded 4,000 pCi/L[6].
  • Philadelphia lead lines: 14,272 lead and 1,189 galvanized lines requiring replacement as of October 2024[7].

Buying a home with a well? Read our Pennsylvania well guide.

Counties we serve

Chester County, PAPhoenixville, West Chester, Downingtown, Exton, Malvern, Kennett Square, Spring City, CoatesvilleMontgomery County, PAKing of Prussia, Norristown, Collegeville, Royersford, LansdaleDelaware County, PAMedia, Newtown Square, Springfield, HavertownPhiladelphia, PACenter City (19103), Fishtown & Port Richmond (19125), Southwest Philadelphia (19143)Bucks County, PADoylestown, Newtown, Yardley

PFAS in Pennsylvania

PFAS water filters in PennsylvaniaState rules and local utility resultsWell water testingWhat to test and how oftenHardness by townUtility hardness figures in mg/L and gpg

Solutions

PFAS filtrationWater softenersWell water treatmentWhole-house treatmentReverse osmosis

Clean water starts with knowing what's in it.

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Sources

  1. Penn State Extension: Private water systems FAQs. extension.psu.edu/private-water-systems-faqs
  2. PA DEP: Private wells. www.pa.gov/agencies/dep/residents/my-water/private-wells
  3. PA DEP: PFAS MCL rule. www.pa.gov/agencies/dep/programs-and-services/water/bureau-of-safe-drinking-water/drinking-water-management/drinking-water-regulations/pfas-mcl-rule
  4. U.S. EPA: Proposed PFOA and PFOS compliance extension rule. www.epa.gov/sdwa/proposed-pfoa-and-pfos-compliance-extension-rule
  5. Penn State AASL: Chester County drinking water test summary. agsci.psu.edu/aasl/water-testing/drinking-water-testing/drinking-water-test-summaries/chester
  6. USGS: High levels of radon found in some wells across Pennsylvania. www.usgs.gov/news/state-news-release/high-levels-radon-found-some-wells-across-pennsylvania
  7. Philadelphia Water Department: New map of service line materials. water.phila.gov/drops/water-department-launches-new-map-of-service-line-materials-to-meet-new-federal-regulations/

EPA records retrieved Oct 2026 from the EPA SDWIS and UCMR 5 public datasets. Utility records describe a water system, not the tap in your home. Records can lag and may be incomplete.