No open health-based violations on EPA record in the last 10 years.
Serves about 143,000 people (60,233 connections) with surface water from its own intake.
From EPA's record for PA5650032. PurityMap is independent of Mawc Sweeney Plant.
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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 January 2019 | Carbon, total | – | TT | Resolved |
| From October 2018 | Carbon, total | – | TT | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from April 2023 to January 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 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 | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| 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 | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| 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 | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| 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 | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| 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 | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-04-24 to 2024-01-03 | UCMR5 Analytical Results: MAWC SWEENEY PLANT (PA5650032) |
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 →Mawc Sweeney Plant's phone number on EPA record is 724-755-5800. Its mailing address is PO BOX 730, GREENSBURG, PA 15601.
According to EPA's record, Mawc Sweeney Plant uses surface water from its own intake.
EPA's record shows 2 health-based violations for Mawc Sweeney Plant in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. EPA also lists 12 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Mawc Sweeney Plant's latest lead and copper round, which ended in September 2025, was 3.48 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Mawc Sweeney Plant. Its phone number on EPA record is 724-755-5800. Its mailing address on EPA record is PO BOX 730, GREENSBURG, PA 15601. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.