Perfluorooctanesulfonic acid
11.4ng/L
Each block = 4.0 ng/L federal MCL (2024)
Short answer: Two PFAS, PFOA and PFOS, are above their federal limits (2024 limits that water systems have until at least 2029 to meet); 2 more are detected with no federal limit, and everything else measured is within its reference or not detected. Veolia Mechanicsburg serves 45,013 residents.
Your water bill or annual water quality report names your actual supplier.
Each bar is drawn in blocks of the 4.0 ng/L federal MCL (2024), so the length shows how far above it the result sits.
11.4ng/L
Each block = 4.0 ng/L federal MCL (2024)
7.1ng/L
Each block = 4.0 ng/L federal MCL (2024)
VEOLIA MECHANICSBURG (EPA PWSID PA7210028) delivers surface water to 45,013 residents. This report reflects 29 individual PFAS result(s) from the source UCMR5 observations and the latest Lead & Copper Rule 90th-percentile result. Water hardness and disinfectant type are pending the utility's own annual report.
2health-based violations in the last 10 years
From EPA SDWIS. Counted once per contaminant per year, as in the Track record score. All 3 EPA filings are listed below.
No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.
Every filing is listed; the Track record score counts at most one per contaminant per year.
Resolved
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Plumbing inside a home can add lead that the system record can't show. A tap test tells you what reaches your glass.
PFOS 11.4 ng/L, above the 4 ng/L limit (+5 more PFAS detected)
lead 3.3 µg/L, below the 15 µg/L action level
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
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
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.
When your results arrive, read them here →
Each card names which Mechanicsburg findings its current certification covers, and which it doesn't.
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PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Mechanicsburg, PFOS 11.4 ng/L and PFOA 7.1 ng/L were measured above the 4 ng/L federal limit in EPA's 2024 testing; the lead 90th-percentile result was 3.3 µg/L against the 15 µg/L action level. VEOLIA MECHANICSBURG (PWSID PA7210028) has a Purity Score of 51/100 (confidence: moderate), assessed at the water-system level and computed only from contaminants that were measured. Water can change in your own pipes, so a certified test is the only way to know what comes out of your tap.
VEOLIA MECHANICSBURG (PWS ID PA7210028) is the public water system on record for Mechanicsburg, Pennsylvania, serving about 45,013 people. Confirm the utility on your water bill before acting on a specific finding.
Surface water (primary source of record in EPA SDWIS).
Yes. In EPA's UCMR 5 testing (2023-02-08 to 2023-11-20), PFOS was measured at 11.4 ng/L against a 4 ng/L federal limit and PFOA was measured at 7.1 ng/L against a 4 ng/L federal limit. PFBS (5.7 ng/L, below the 2,000 ng/L EPA health advisory) and PFHxA (6.9 ng/L, below the 400,000 ng/L state limit) were also detected. PFHpA (3.6 ng/L) and PFPeA (8.1 ng/L) were also detected; they have no federal or state limit. Reverse osmosis and filters certified to NSF/ANSI 53 for PFOA/PFOS reduce them at the tap.
VEOLIA MECHANICSBURG's most recent lead 90th-percentile result (2025) was 3.3 µg/L, below the 15 µg/L action level. That figure comes from sampled homes; lead usually enters from a building's own pipes and fixtures, so only a test at your tap tells you what you drink.
PurityMap's current record for Mechanicsburg holds 31 findings: 2 above a reference, 3 detected within the reference, 2 detected with no limit and 24 not detected. Each finding links to its dated public record; a parameter that was never monitored is shown as pending, not as a pass.
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| Contaminant | Result | Benchmark | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 11.4 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluorooctanoic acid (PFOA) | 7.1 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Lead (90th percentile) | 3.3 µg/L | 15 µg/L federal action level | Below the listed reference | 2025–2025 monitoring period | Lead & Copper Rule 90th-percentile: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluorobutanesulfonic acid (PFBS) | 5.7 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 | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluorohexanoic acid (PFHxA) | 6.9 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluoroheptanoic acid (PFHpA) | 3.6 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluoropentanoic acid (PFPeA) | 8.1 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Contaminant | Result | Benchmark | 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 | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| 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 | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| 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 | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| 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 | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| 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 | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| 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 | 2023-02-08 to 2023-11-15 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-15 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-15 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-15 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-15 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-02-08 to 2023-11-20 | UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028) |
Perfluorooctanesulfonic acid (PFOS)
Perfluorobutanesulfonic acid (PFBS)
Perfluorohexanoic acid (PFHxA)
Perfluoroheptanoic acid (PFHpA)
Perfluoropentanoic acid (PFPeA)
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)
Perfluoro-3-methoxypropanoic acid (PFMPA)
Perfluoro-4-methoxybutanoic acid (PFMBA)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluorohexanesulfonic acid (PFHxS)
Perfluoropentanesulfonic acid (PFPeS)
Perfluorotetradecanoic acid (PFTA)
Perfluorotridecanoic acid (PFTrDA)
Perfluoroundecanoic acid (PFUnA)
Every value is the published result from the cited public record. A reporting limit is the lowest level the method could reliably quantify; a non-detect is not a guarantee of zero.
UCMR5 Analytical Results
UCMR5 Analytical Results: VEOLIA MECHANICSBURG (PA7210028)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: VEOLIA MECHANICSBURG (PA7210028)
US EPA SDWIS
Methodology: how we analyze water. Prepared with AI assistance and reviewed by the PurityMap Editorial Team before publication.
Start with the hot-or-cold tap check. Where Veolia Mechanicsburg reported something related, it's shown below.
Lead at Veolia Mechanicsburg: 3.3 µg/L (90th percentile, 2025 monitoring period). Lead has no taste, so a taste neither shows nor rules it out.
A ZIP code is a postal area, not a water service area. Your water bill names your supplier.