No open health-based violations on EPA record in the last 10 years; latest legal-limit breach in the period starting July 2025.
Serves about 3,816 people (1,272 connections) with groundwater from its own wells.
From EPA's record for LA1029005. PurityMap is independent of Town of Ferriday Water System.
Are you this utility? Correct this listing →
70 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From March 2026 | Groundwater Rule | – | – | Archived |
| From October 2025 | Groundwater Rule | – | – | Archived |
| From September 2025 | Groundwater Rule | – | – | Archived |
| From August 2025 | Groundwater Rule | – | – | Archived |
| From July 2025 | Groundwater Rule | – | – | Archived |
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| Jul–Sep 2025 | Total trihalomethanes (TTHM) | 0.081 mg/L | 0.080 mg/L | Archived |
| From June 2025 | Groundwater Rule | – | – | Archived |
| Apr–Jun 2025 | Total trihalomethanes (TTHM) | 0.103 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2025 | Total trihalomethanes (TTHM) | 0.104 mg/L | 0.080 mg/L | Archived |
| From October 2024 | Lead and copper rule revisions | – | – | Resolved |
| Oct–Dec 2024 | Total trihalomethanes (TTHM) | 0.099 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2024 | Total trihalomethanes (TTHM) | 0.102 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2024 | Total trihalomethanes (TTHM) | 0.102 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2024 | Total trihalomethanes (TTHM) | 0.102 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2023 | Total trihalomethanes (TTHM) | 0.097 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2023 | Total trihalomethanes (TTHM) | 0.092 mg/L | 0.080 mg/L | Archived |
| Apr–Jun 2023 | Total trihalomethanes (TTHM) | 0.097 mg/L | 0.080 mg/L | Archived |
| Jan–Mar 2023 | Total trihalomethanes (TTHM) | 0.099 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2022 | Total trihalomethanes (TTHM) | 0.113 mg/L | 0.080 mg/L | Archived |
| Oct–Dec 2022 | Haloacetic acids (HAA5) | 0.062 mg/L | 0.060 mg/L | Archived |
| Jul–Sep 2022 | Total trihalomethanes (TTHM) | 0.13 mg/L | 0.080 mg/L | Archived |
| Jul–Sep 2022 | Haloacetic acids (HAA5) | 0.062 mg/L | 0.060 mg/L | Archived |
| From May 2022 | Groundwater Rule | – | – | Resolved |
| From May 2022 | Groundwater Rule | – | – | Resolved |
| Apr–Jun 2022 | Total trihalomethanes (TTHM) | 0.14 mg/L | 0.080 mg/L | Archived |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2024 to January 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 19.4 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 | 2024-03-11 to 2024-09-17 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| 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 | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| 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 | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| 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 | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| 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 | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| 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 | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-09-17 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-09-17 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| 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 | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-09-17 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2024-09-17 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-11 to 2025-01-06 | UCMR5 Analytical Results: TOWN OF FERRIDAY WATER SYSTEM (LA1029005) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
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
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
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.
Get PurityMap updates about this water system.
Follow this water →Town of Ferriday Water System's phone number on EPA record is 318-757-3411. Its mailing address is Town of Ferriday Water System, 1116 2nd St, FERRIDAY, LA 71334.
According to EPA's record, Town of Ferriday Water System uses groundwater from its own wells.
EPA's record shows 70 health-based violations for Town of Ferriday Water System in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The latest legal-limit breach on record was in the period starting July 2025. EPA also lists 52 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Town of Ferriday Water System's latest lead and copper round, which ended in December 2025, was 11.4 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Town of Ferriday Water System. Its phone number on EPA record is 318-757-3411. Its mailing address on EPA record is Town of Ferriday Water System, 1116 2nd St, FERRIDAY, LA 71334. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.