Short answer: No measured result is above a legal limit. Walhalla City of (Sc3710004) serves 16,010 residents.
EPA lists this system for the city. Your water bill or annual water quality report names your actual supplier.
Source: EPA SDWIS 2026Q2.
WALHALLA CITY OF (SC3710004) (EPA PWSID SC3710004) delivers surface water to 16,010 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.
0health-based violations in the last 10 years
From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit.
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.
The records describe the system. A certified lab test shows what reaches your glass.
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
Silver Lake Research
Lead, bacteria, nitrate, copper, iron, chlorine, hardness and pH
What it can't tell you: Each test gives a yes/no or a rough range, not a lab number, and it cannot detect PFAS or arsenic.
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 →
PurityMap does not give a safe/unsafe verdict; it shows what the public records measured. For Walhalla, no regulated PFAS were detected in EPA's 2024 testing. WALHALLA CITY OF (SC3710004) (PWSID SC3710004) has a Purity Score of 100/100 (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.
WALHALLA CITY OF (SC3710004) (PWS ID SC3710004) is the public water system on record for Walhalla, South Carolina, serving about 16,010 people. Confirm the utility on your water bill before acting on a specific finding.
Surface water (primary source of record in EPA SDWIS).
None of the 29 PFAS in EPA's UCMR 5 testing (2025-02-10 to 2025-08-19) was detected. "Not detected" means below the lab's reporting limit, not proven zero.
Lead is not in Walhalla'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 Walhalla holds 31 findings: 31 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 |
|---|---|---|---|---|---|
| 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 | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| 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 | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| 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 | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| 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 | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| 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 | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| 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: WALHALLA CITY OF (SC3710004) (SC3710004) |
| 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 | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| 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 | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-10 to 2025-08-19 | UCMR5 Analytical Results: WALHALLA CITY OF (SC3710004) (SC3710004) |
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)
Perfluorobutanesulfonic acid (PFBS)
Perfluorododecanoic acid (PFDoA)
Perfluoroheptanesulfonic acid (PFHpS)
Perfluoroheptanoic acid (PFHpA)
Perfluorohexanesulfonic acid (PFHxS)
Perfluorohexanoic acid (PFHxA)
Perfluorooctanesulfonic acid (PFOS)
Perfluoropentanesulfonic acid (PFPeS)
Perfluoropentanoic acid (PFPeA)
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: WALHALLA CITY OF (SC3710004) (SC3710004)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: WALHALLA CITY OF (SC3710004) (SC3710004)
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 Walhalla City of (Sc3710004) reported something related, it's shown below.
Lead at Walhalla City of (Sc3710004): 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.