Is Grantley, PA tap water safe?
The short answer
York Water Co serves Grantley. In EPA’s and Pennsylvania’s records it has 3 results above the health goal, and 1 health-based violation since 2016.
The worst: PFOS at 2.3 ppt, above the health goal. Health goals are stricter than legal limits and are not enforced.
Some homes in a town are on private wells or a small system of their own. The name on your water bill tells you which is yours.
What handles it
Each of these is certified, on a certifier’s listing, for a result above a line in York Water Co’s water.
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ZeroWater 10 Cup Pitcher (ZP-010)
Pitcher
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53checked Oct. 4, 2026
Certified for: PFOS, PFOA, Lead
Aquasana Claryum Direct Connect (AQ-MF-1)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, PFOA, Lead
Express Water StreamLine Direct Connect System (USC001)
Under-sink carbon
- IAPMO listing:NSF/ANSI 42NSF/ANSI 53NSF/ANSI 401checked Oct. 16, 2026
Certified for: PFOS, PFOA, Lead
Water testing near Grantley
The 3 labs Pennsylvania certifies closest to Grantley, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.
ALS Environmental - Middletown
Middletown, PA · about 19 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS, radioactivity
Laboratory, Analytical and Biological Services, Inc
New Oxford, PA · about 20 miles
Certified for bacteria, nitrate, lead and copper, metals, minerals and other inorganics
Eurofins Lancaster Laboratories Environment Testing, LLC
Lancaster, PA · about 24 miles
Certified for nitrate, lead and copper, metals, minerals and other inorganics, organic chemicals, disinfection byproducts, PFAS
Penn State Agricultural Analytical Services Laboratory: Drinking water test kits from many county Extension offices, mailed back to the lab overnight with payment. Packages cover bacteria and basic chemistry, with add-ons for nitrate, metals, lead, and mining or gas drilling concerns. The standard package of bacteria, pH and total dissolved solids is $60, or $70 with nitrate; bacteria alone is $40, nitrate $15 and lead $25. Drinking Water Testing, Penn State Agricultural Analytical Services Lab.
All 108 certified labs for PennsylvaniaZIP codes in Grantley
Which ZIP codes are in Grantley: Census 2020 relationship files. Which utilities serve them, and how many people: EPA SDWIS and EPA’s service area map. Each utility’s results: EPA UCMR 5, EPA SDWIS, and EPA’s and the state’s compliance monitoring, as its report lists them. How they are measured: methodology. Certified labs: Pennsylvania DEP Laboratory Accreditation Program, accredited labs for drinking water; distances from the Census 2020 ZIP code tabulation area gazetteer.
Near Grantley
Other towns in York County with a page of their own.
What to do next
- Read York Water Co’s full reportEvery result with its dates, the violations, and the certification claim that handles each finding.Open the report
- Filters for PFOSRanked by certification and what they cost over five years.The best water filters for PFAS, ranked
- On a private well?No utility tests a well. A certified lab test is the first step.How to test well water