EPA PA1460073 · serves Montgomery County, PA · about 822,600 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
Aqua PA Main System (EPA PA1460073)
What EPA records show for Aqua PA Main System, as of October 14, 2026
Lead, 90th percentile: 0 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 10.
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 Aqua PA Main System use chloramine?
EPA treatment records (state-reported) list chloramines for Aqua PA Main System. EPA record
Reported results in EPA records (data as of Oct 14–15, 2026)
EPA's UCMR 5 testing looked for 30 contaminants here and found 10.
Lithium: found in 2 of 50 samples, average 0.62 µg/L, highest 15.7 µg/L (EPA UCMR 5 testing, Feb 2024–Dec 2024)
PFPeA (a PFAS): found in 43 of 50 samples, average 6.2 ppt, highest 21.8 ppt (EPA UCMR 5 testing, Feb 2024–Dec 2024)
PFHxA (a PFAS): found in 42 of 50 samples, average 5.4 ppt, highest 17.2 ppt (EPA UCMR 5 testing, Feb 2024–Dec 2024)
PFOA (a PFAS): found in 35 of 50 samples, average 4.8 ppt, highest 12.6 ppt (EPA UCMR 5 testing, Feb 2024–Dec 2024) PFOA or PFOS averaged above 4.0 ppt in UCMR 5 testing
PFBS (a PFAS): found in 35 of 50 samples, average 3.1 ppt, highest 9.5 ppt (EPA UCMR 5 testing, Feb 2024–Dec 2024)
PFBA (a PFAS): found in 20 of 50 samples, average 2.7 ppt, highest 10.1 ppt (EPA UCMR 5 testing, Feb 2024–Dec 2024)
PFOS (a PFAS): found in 16 of 50 samples, average 1.9 ppt, highest 9.2 ppt (EPA UCMR 5 testing, Feb 2024–Dec 2024)
PFHpA (a PFAS): found in 16 of 50 samples, average 1.3 ppt, highest 6.9 ppt (EPA UCMR 5 testing, Feb 2024–Dec 2024)
PFNA (a PFAS): found in 7 of 50 samples, average 1.1 ppt, highest 12 ppt (EPA UCMR 5 testing, Feb 2024–Dec 2024)
PFHxS (a PFAS): found in 11 of 50 samples, average 1 ppt, highest 7.7 ppt (EPA UCMR 5 testing, Feb 2024–Dec 2024)
Lead, 90th percentile: 0 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.
Source: EPA SDWIS (ECHO SDWA bulk download), data as of Oct 14, 2026
Source: EPA UCMR 5 occurrence data, data as of Oct 15, 2026
These are EPA's public records for this water system, shown as of October 14, 2026. If you represent this utility, or think a record here is wrong, tell us: Report an error. If the error is in EPA's own records, your state drinking water program can correct it there, and this page updates at our next data refresh.
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