- EPA's UCMR 5 testing looked for 30 contaminants here and found 5.
- Lithium: found in 1 of 4 samples, average 2.55 µg/L, highest 10.2 µg/L (EPA UCMR 5 testing, Sep 2024–Jun 2025)
- PFBA (a PFAS): found in 2 of 4 samples, average 4.6 ppt, highest 12.6 ppt (EPA UCMR 5 testing, Sep 2024–Jun 2025)
- PFPeA (a PFAS): found in 3 of 4 samples, average 4 ppt, highest 7.4 ppt (EPA UCMR 5 testing, Sep 2024–Jun 2025)
- PFHxA (a PFAS): found in 2 of 4 samples, average 2.6 ppt, highest 5.9 ppt (EPA UCMR 5 testing, Sep 2024–Jun 2025)
- PFBS (a PFAS): found in 2 of 4 samples, average 2.4 ppt, highest 5 ppt (EPA UCMR 5 testing, Sep 2024–Jun 2025)
- Lead, 90th percentile: 0.9 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jun 1, 2025–Sep 30, 2025). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
- Health-based violation: Surface Water Treatment Rules, Long Term 2 Enhanced Surface Water Treatment Rule, Sep 2023–Feb 2024 (EPA SDWIS)
- Health-based violation: Surface Water Treatment Rules, Long Term 2 Enhanced Surface Water Treatment Rule, Nov 2022–Apr 2023 (EPA SDWIS)
Public EPA test results
Can you drink Pottstown tap water? What EPA records show
EPA PA1460037 · serves Montgomery County, PA · about 36,000 people (EPA SDWIS)
This report shows EPA's federal records for this water system: UCMR 5 testing, lead testing and violations. It isn't a test of the water at your tap, and it has no Water Score.
Public EPA test results
Pottstown Borough Water Auth (EPA PA1460037)
ScoreYourWater.com gives no verdict on your tap water; it shows what the public records say, as of October 14, 2026. For Pottstown's main utility, Pottstown Borough Water Auth: 2 health-based violations since July 1, 2021 in EPA records (EPA SDWIS). PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
What EPA records show for Pottstown Borough Water Auth, as of October 14, 2026
2 health-based violations since July 1, 2021 in EPA records (EPA SDWIS).
Lead, 90th percentile: 0.9 ppb at the latest result in EPA records for a monitoring period that ran on or after July 1, 2021, at or below EPA's 15 ppb action level (EPA SDWIS, monitoring period Jun 1, 2025–Sep 30, 2025). The 90th percentile is a system-wide measure from homes sampled under EPA's lead rule; it isn't a result for your home.
EPA's UCMR 5 testing looked for 30 contaminants here and found 5.
PFOA and PFOS were not detected at or above EPA's reporting level in EPA's UCMR 5 testing.
Source: EPA records (SDWIS, UCMR 5). SDWIS: data as of Oct 14, 2026. EPA UCMR 5 data, samples through June 2026.
Your water bill names your utility.
Does Pottstown Borough Water Auth use chloramine?
We didn't find chloramine in Pottstown Borough Water Auth's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.
What EPA records show for this system
Reported results in EPA records (data as of Oct 14–15, 2026)