No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting July 2017.
Serves about 822,600 people (304,127 connections) with surface water from its own intake, and buys water from Philadelphia Water Department, Chester Water Authority, Aqua Pa Bensalem and 4 more.
From EPA's record for PA1460073. PurityMap is independent of Aqua Pa Main System.
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2 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From November 2024 | Groundwater Rule | – | – | Resolved |
| From July 2017 | E. coli | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2024 to December 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanoic acid (PFOA) | 12.6 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluorooctanesulfonic acid (PFOS) | 9.2 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Lithium | 15.7 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Above the referenced health-based guidance value | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluorononanoic acid (PFNA) | 12 ng/L | 10 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluorohexanesulfonic acid (PFHxS) | 7.7 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluorobutanesulfonic acid (PFBS) | 9.5 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluorohexanoic acid (PFHxA) | 17.2 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluorobutanoic acid (PFBA) | 10.1 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluoroheptanoic acid (PFHpA) | 6.9 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluoropentanoic acid (PFPeA) | 21.8 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-01 to 2024-12-11 | UCMR5 Analytical Results: AQUA PA MAIN SYSTEM (PA1460073) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
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.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →Aqua Pa Main System's phone number on EPA record is 610-645-1122. Its mailing address is 762 W LANCASTER AVE, BRYN MAWR, PA 19010.
According to EPA's record, Aqua Pa Main System uses surface water from its own intake, and buys water from Philadelphia Water Department, Chester Water Authority, Aqua Pa Bensalem and 4 more.
EPA's record shows 2 health-based violations for Aqua Pa Main System in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting July 2017. EPA also lists 44 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Aqua Pa Main System's latest lead and copper round, which ended in September 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for Aqua Pa Main System. 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.