Short answer: No measured result is above a legal limit; lithium sits above a screening level. St Charles Parish Dept of Waterworks serves 52,879 residents.
Your water bill or annual water quality report names your actual supplier.
Also supplies: Destrehan
ST CHARLES PARISH DEPT OF WATERWORKS (EPA PWSID LA1089001) delivers surface water to 52,879 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.
Plumbing inside a home can add lead that the system record can't show. A tap test tells you what reaches your glass.
lead 2 µg/L, below the 15 µg/L action level
PFBA 13.6 ng/L detected (no federal or state limit)
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 Luling 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 Luling, PFBA 13.6 ng/L was detected, with no federal or state limit; the lead 90th-percentile result was 2 µg/L against the 15 µg/L action level. ST CHARLES PARISH DEPT OF WATERWORKS (PWSID LA1089001) has a Purity Score of 98/100 (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.
ST CHARLES PARISH DEPT OF WATERWORKS (PWS ID LA1089001) is the public water system on record for Luling, Louisiana, serving about 52,879 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 (2023-03-29 to 2023-10-10), PFBA was detected at 13.6 ng/L. It has no federal or state limit, so PurityMap shows it without grading it. No PFAS with a limit was detected.
ST CHARLES PARISH DEPT OF WATERWORKS's most recent lead 90th-percentile result (2024–2026) was 2 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 Luling holds 31 findings: 1 above a reference, 1 detected within the reference, 1 detected with no limit and 28 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 | 15 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 | 2023-01-26 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Lead (90th percentile) | 2 µg/L | 15 µg/L federal action level | Below the listed reference | 2024–2026 monitoring period (still open) | Lead & Copper Rule 90th-percentile: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluorobutanoic acid (PFBA) | 13.6 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| 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 | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| 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 | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| 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 | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| 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 | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| 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 | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-26 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-26 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| 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 | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-26 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-26 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-03-29 to 2023-10-10 | UCMR5 Analytical Results: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001) |
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: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001)
US EPA
State SDWIS Compliance Record
Lead & Copper Rule 90th-percentile: ST CHARLES PARISH DEPT OF WATERWORKS (LA1089001)
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 St Charles Parish Dept of Waterworks reported something related, it's shown below.
Lead at St Charles Parish Dept of Waterworks: 2 µg/L (90th percentile, 2024–2026 monitoring period (still open)). 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.