Perfluorooctanoic acid
8.9ng/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); lithium sits above a screening level. Western Virginia Water Authority serves 182,700 residents.
Your water bill or annual water quality report names your actual supplier.
Also supplies: Cave Spring, Hollins, Vinton, Fincastle, New Castle
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.
8.9ng/L
Each block = 4.0 ng/L federal MCL (2024)
6.3ng/L
Each block = 4.0 ng/L federal MCL (2024)
WESTERN VIRGINIA WATER AUTHORITY (EPA PWSID VA2770900) delivers surface water to 182,700 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.
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 8.9 ng/L, above the 4 ng/L limit (+4 more PFAS detected)
1 galvanized line 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 Roanoke 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 Roanoke, PFOA 8.9 ng/L and PFOS 6.3 ng/L were measured above the 4 ng/L federal limit in EPA's 2024 testing. WESTERN VIRGINIA WATER AUTHORITY (PWSID VA2770900) has a Purity Score of 54/100 (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.
WESTERN VIRGINIA WATER AUTHORITY (PWS ID VA2770900) is the public water system on record for Roanoke, Virginia, serving about 182,700 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 (2023-09-11 to 2024-06-11), PFOA was measured at 8.9 ng/L against a 4 ng/L federal limit and PFOS was measured at 6.3 ng/L against a 4 ng/L federal limit. HFPO-DA (GenX) (6 ng/L, below the 10 ng/L federal limit) and PFHxA (4.3 ng/L, below the 400,000 ng/L state limit) were also detected. PFPeA (6.2 ng/L) was also detected; it has 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 Roanoke'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.
PurityMap's current record for Roanoke holds 31 findings: 3 above a reference, 2 detected within the reference, 1 detected with no limit and 25 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 |
|---|---|---|---|---|---|
| Lithium | 22.8 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 | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluorooctanoic acid (PFOA) | 8.9 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluorooctanesulfonic acid (PFOS) | 6.3 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | 6 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluorohexanoic acid (PFHxA) | 4.3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluoropentanoic acid (PFPeA) | 6.2 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| 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 | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| 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 | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| 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 | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| 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 | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| 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 | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Lead (90th percentile) | Non-Detect (ND) | 15 µg/L federal action level | Not detected above the reporting limit | 2023–2025 monitoring period | Lead & Copper Rule 90th-percentile: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| 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 | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-06-11 | UCMR5 Analytical Results: WESTERN VIRGINIA WATER AUTHORITY (VA2770900) |
Perfluorooctanesulfonic acid (PFOS)
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)
Perfluorohexanoic acid (PFHxA)
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)
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
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: WESTERN VIRGINIA WATER AUTHORITY (VA2770900)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: WESTERN VIRGINIA WATER AUTHORITY (VA2770900)
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 Western Virginia Water Authority reported something related, it's shown below.
Lead at Western Virginia Water Authority: not detected (90th percentile, 2023–2025 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.