Water utility · Chester County · Pennsylvania

Aqua Pa Uwchlan

No health-based violations on EPA record since 2016.

Serves about 35,518 people (16,600 connections) with surface water bought from Aqua Pa Main System.

  • PWSID PA1150035
  • EPA registered name: AQUA PA UWCHLAN
  • EPA record checked June 15, 2026
Contact

Contact Aqua Pa Uwchlan

From EPA's record for PA1150035. PurityMap is independent of Aqua Pa Uwchlan.

Mailing address
762 W LANCASTER AVE
BRYN MAWR, PA 19010
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EPA compliance record

What EPA's record shows

No health-based violations in the last 10 years, from EPA's SDWIS compliance database.

  • Lead: the 90th-percentile result in the latest lead and copper round (the round ending September 30, 2025) was 2.21 µg/L. The federal action level is 15 µg/L, a trigger for more treatment steps, not a legal limit.
  • Missed or late tests or reports: 4 in 10 years.
  • EPA lists 5 enforcement actions in 10 years; the latest on February 3, 2021.
Lab results EPA required (UCMR 5)

6 of 30 contaminants detected in EPA testing

EPA required this system to test for 30 unregulated and emerging contaminants, from January 2024 to October 2024.

  • Perfluorooctanoic acid (PFOA)Above a historical reference; current applicability unverified
    4 ng/L federal MCL
    9.3ng/L
  • Perfluorooctanesulfonic acid (PFOS)Above a historical reference; current applicability unverified
    4 ng/L federal MCL
    7.1ng/L
  • Perfluorohexanoic acid (PFHxA)Within a historical reference; current applicability unverified
    400,000 ng/L Michigan EGLE state MCL · not a federal limit
    6.7ng/L
  • Perfluorobutanoic acid (PFBA)Detected, no limit
    No federal limit
    5.7ng/L
  • Perfluorobutanesulfonic acid (PFBS)Within the referenced health-based guidance value
    2,000 ng/L EPA health advisory · not a legal limit
    5.1ng/L
  • Perfluoropentanoic acid (PFPeA)Detected, no limit
    No federal limit
    7.7ng/L
Results as a table30 results with limit, status, sample date and source
EPA-required lab results (UCMR 5) for Aqua Pa Uwchlan (PWSID PA1150035), Pennsylvania
ContaminantResultLimitStatusSampledSource
Perfluorooctanoic acid (PFOA)9.3 ng/L4.0 ng/L federal MCL (2024)Above a historical reference; current applicability unverified2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluorooctanesulfonic acid (PFOS)7.1 ng/L4.0 ng/L federal MCL (2024)Above a historical reference; current applicability unverified2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluorobutanesulfonic acid (PFBS)5.1 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limitWithin the referenced health-based guidance value2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluorohexanoic acid (PFHxA)6.7 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)Within a historical reference; current applicability unverified2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluorobutanoic acid (PFBA)5.7 ng/LNo federal or state limit; shown for transparencyDetected, no limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluoropentanoic acid (PFPeA)7.7 ng/LNo federal or state limit; shown for transparencyDetected, no limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Lithium< 9 µg/L10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limitNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)Not detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparencyNot detected above the reporting limit2024-01-29 to 2024-10-25UCMR5 Analytical Results: AQUA PA UWCHLAN (PA1150035)
Not detected (24)
  • 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
  • 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
  • 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
  • 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
  • 4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
  • Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
  • N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
  • Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
  • N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
  • Perfluorodecanoic acid (PFDA)
  • Perfluorododecanoic acid (PFDoA)
  • Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
  • Perfluoroheptanoic acid (PFHpA)
  • Perfluoroheptanesulfonic acid (PFHpS)
  • Perfluorohexanesulfonic acid (PFHxS)
  • Perfluoro-4-methoxybutanoic acid (PFMBA)
  • Perfluoro-3-methoxypropanoic acid (PFMPA)
  • Perfluorononanoic acid (PFNA)
  • Perfluoropentanesulfonic acid (PFPeS)
  • Perfluorotetradecanoic acid (PFTA)
  • Perfluorotridecanoic acid (PFTrDA)
  • Perfluoroundecanoic acid (PFUnA)
  • Lithium
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  • Screening: quick check, not lab-grade

    Safe Home DIY Lead in Drinking Water Combo Test Kit

    Safe Home (EnviroTestKits)

    Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb

    Turnaround: 5 minutes

    What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.

Questions

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What is the phone number for Aqua Pa Uwchlan?

Aqua Pa Uwchlan's phone number on EPA record is 610-645-1122. Its mailing address is 762 W LANCASTER AVE, BRYN MAWR, PA 19010.

Where does Aqua Pa Uwchlan get its water?

According to EPA's record, Aqua Pa Uwchlan uses surface water bought from Aqua Pa Main System.

Does Aqua Pa Uwchlan have any EPA violations?

No health-based violations on EPA record since 2016. EPA also lists 4 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.

What is Aqua Pa Uwchlan's latest lead result?

The 90th-percentile lead result in Aqua Pa Uwchlan's latest lead and copper round, which ended in September 2025, was 2.21 µg/L, below the federal action level of 15 µg/L.

Who do I contact about my Aqua Pa Uwchlan water bill?

PurityMap has no verified website for Aqua Pa Uwchlan. Its phone number on EPA record is 610-645-1122. Its mailing address on EPA record is 762 W LANCASTER AVE, BRYN MAWR, PA 19010. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.