Perfluorooctanoic acid
6.6ng/L
Each block = 4.0 ng/L federal MCL (2024)
Short answer: PFOA is above its federal limit (a 2024 limit that water systems have until at least 2029 to meet); a past health-based violation (E. coli) is on record. Reading Area Water Authority serves 95,100 residents.
Your water bill or annual water quality report names your actual supplier.
Also supplies: Kenhorst
The 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.
6.6ng/L
Each block = 4.0 ng/L federal MCL (2024)
READING AREA WATER AUTHORITY (EPA PWSID PA3060059) delivers surface water to 95,100 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.
3health-based violations in the last 10 years
From EPA SDWIS. Counted once per contaminant per year, as in the Track record score. All 4 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.
PFOA 6.6 ng/L, above the 4 ng/L limit (+4 more PFAS detected)
2 lead service lines; 254 galvanized lines to replace
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 Reading findings its current certification covers, and which it doesn't.
As an Amazon Associate, PurityMap earns from qualifying purchases. A product appears here only when a current certification record covers at least one identified concern; every concern stays listed. The retail offer is looked up afterwards and never changes which products appear or their order. Affiliate disclosure.













PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Reading, PFOA 6.6 ng/L was measured above the 4 ng/L federal limit in EPA's 2024 testing; one health-based violation is on record (E. coli). READING AREA WATER AUTHORITY (PWSID PA3060059) has a Purity Score of 60/100 (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.
READING AREA WATER AUTHORITY (PWS ID PA3060059) is the public water system on record for Reading, Pennsylvania, serving about 95,100 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 (2024-01-08 to 2024-10-01), PFOA was measured at 6.6 ng/L against a 4 ng/L federal limit. PFBS (5.6 ng/L, below the 2,000 ng/L EPA health advisory) and PFHxA (4.4 ng/L, below the 400,000 ng/L state limit) were also detected. PFHpA (3 ng/L) and PFPeA (5.4 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.
Lead is not in Reading's current published record. Lead usually enters from a building's own pipes and fixtures, so a certified home test is the way to know yours.
The federal SDWIS record lists a health-based violation for READING AREA WATER AUTHORITY within about the last ten years: E. coli (2018). The findings above show each one's status.
PurityMap's current record for Reading holds 32 findings: 2 above a reference, 2 detected within the reference, 2 detected with no limit and 26 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 |
|---|---|---|---|---|---|
| Perfluorooctanoic acid (PFOA) | 6.6 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| E. coli | = | Federal MCL | Above the listed reference | 2018 | EPA SDWIS Violations & Enforcement: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluorobutanesulfonic acid (PFBS) | 5.6 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 | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluorohexanoic acid (PFHxA) | 4.4 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluoroheptanoic acid (PFHpA) | 3 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluoropentanoic acid (PFPeA) | 5.4 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| 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 | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| 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 | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| 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 | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| 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 | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| 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 | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | Not detected above the reporting limit | 2025–2025 monitoring period | Lead & Copper Rule 90th-percentile: READING AREA WATER AUTHORITY (PA3060059) |
| 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 | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-01-08 to 2024-10-01 | UCMR5 Analytical Results: READING AREA WATER AUTHORITY (PA3060059) |
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)
Perfluorooctanesulfonic acid (PFOS)
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: READING AREA WATER AUTHORITY (PA3060059)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: READING AREA WATER AUTHORITY (PA3060059)
US EPA SDWIS
State SDWIS Compliance Record
EPA SDWIS Violations & Enforcement: READING AREA WATER AUTHORITY (PA3060059)
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 Reading Area Water Authority reported something related, it's shown below.
Lead at Reading Area Water Authority: not detected (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.