No health-based violations on EPA record since 2016.
Serves about 5,206 people (1,880 connections) with surface water bought from York Water Co.
From EPA's record for PA7670062. PurityMap is independent of Stewartstown Boro Water Auth.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2023 to December 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanoic acid (PFOA) | 4.6 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluorooctanesulfonic acid (PFOS) | 4.1 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluorobutanesulfonic acid (PFBS) | 6.7 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 | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluorohexanoic acid (PFHxA) | 4.5 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluoropentanoic acid (PFPeA) | 4.9 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| 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 | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| 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 | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| 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 | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| 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 | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| 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 | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| 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 | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-06 to 2023-12-11 | UCMR5 Analytical Results: STEWARTSTOWN BORO WATER AUTH (PA7670062) |
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 →Stewartstown Boro Water Auth's phone number on EPA record is 717-993-2963. Its mailing address is 6 N MAIN ST STE A, STEWARTSTOWN, PA 17363.
According to EPA's record, Stewartstown Boro Water Auth uses surface water bought from York Water Co.
No health-based violations on EPA record since 2016. EPA also lists 106 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 Stewartstown Boro Water Auth'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 Stewartstown Boro Water Auth. Its phone number on EPA record is 717-993-2963. Its mailing address on EPA record is 6 N MAIN ST STE A, STEWARTSTOWN, PA 17363. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.