- EPA's UCMR 5 testing looked for 30 contaminants here and found 11.
- Lithium: found in 14 of 20 samples, average 9.47 µg/L, highest 22.4 µg/L (EPA UCMR 5 testing, Aug 2024–May 2025)
- PFOA (a PFAS): found in 16 of 20 samples, average 8.8 ppt, highest 15.3 ppt (EPA UCMR 5 testing, Aug 2024–May 2025) PFOA or PFOS averaged above 4.0 ppt in UCMR 5 testing
- PFOS (a PFAS): found in 16 of 20 samples, average 7.9 ppt, highest 13.7 ppt (EPA UCMR 5 testing, Aug 2024–May 2025) PFOA or PFOS averaged above 4.0 ppt in UCMR 5 testing
- PFPeA (a PFAS): found in 18 of 20 samples, average 7.1 ppt, highest 14 ppt (EPA UCMR 5 testing, Aug 2024–May 2025)
- PFHxA (a PFAS): found in 18 of 20 samples, average 6.5 ppt, highest 12.2 ppt (EPA UCMR 5 testing, Aug 2024–May 2025)
- PFBS (a PFAS): found in 17 of 20 samples, average 6.2 ppt, highest 9.2 ppt (EPA UCMR 5 testing, Aug 2024–May 2025)
- PFBA (a PFAS): found in 15 of 20 samples, average 5 ppt, highest 10.6 ppt (EPA UCMR 5 testing, Aug 2024–May 2025)
- PFHpA (a PFAS): found in 16 of 20 samples, average 4.2 ppt, highest 9 ppt (EPA UCMR 5 testing, Aug 2024–May 2025)
- PFHxS (a PFAS): found in 12 of 20 samples, average 2.4 ppt, highest 5 ppt (EPA UCMR 5 testing, Aug 2024–May 2025)
- PFNA (a PFAS): found in 3 of 20 samples, average 1.4 ppt, highest 13.5 ppt (EPA UCMR 5 testing, Aug 2024–May 2025)
- 6:2 FTS (a PFAS): found in 1 of 20 samples, average 0.30 ppt, highest 6 ppt (EPA UCMR 5 testing, Aug 2024–May 2025)
- Lead, 90th percentile: 2.3 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.
Public EPA test results
Can you drink Ambler tap water? What EPA records show
EPA PA1460020 · serves Montgomery County, PA · about 20,000 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
Ambler Boro Water Dept (EPA PA1460020)
EPA data as of October 14, 2026. For Ambler's main utility, Ambler Boro Water Dept: We found no health-based violations in EPA's records for this system (PA1460020) since July 1, 2021, as of October 14, 2026. This water system averaged above 4.0 ppt for PFOA or PFOS in EPA's UCMR 5 testing.
What EPA records show for Ambler Boro Water Dept, as of October 14, 2026
We found no health-based violations in EPA's records for this system (PA1460020) since July 1, 2021, as of October 14, 2026.
Source: EPA ECHO record for Ambler Boro Water Dept (SDWIS). Data as of October 14, 2026.
Lead, 90th percentile: 2.3 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.
This water system averaged above 4.0 ppt for PFOA or PFOS in EPA's UCMR 5 testing.
EPA's UCMR 5 testing looked for 30 contaminants here and found 11.
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 Ambler Boro Water Dept use chloramine?
We didn't find chloramine in Ambler Boro Water Dept's EPA treatment records. That's not a complete list; your utility's annual water quality report says which disinfectant it uses.