No open health-based violations on EPA record in the last 10 years.
Serves about 6,921 people (2,307 connections) with groundwater from its own wells.
From EPA's record for LA1029003. PurityMap is independent of Concordia Waterworks District 1.
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2 health-based violations in the last 10 years, from EPA's SDWIS compliance database.
| Period | Contaminant | Measured | Legal limit | EPA status |
|---|---|---|---|---|
| From May 2021 | Groundwater Rule | – | – | Resolved |
| From May 2021 | Groundwater Rule | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2024 to February 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Lithium | 22.4 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 | 2024-03-03 to 2024-09-16 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| 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 | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| 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 | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| 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 | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| 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 | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| 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 | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-03 to 2024-09-16 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-03 to 2024-09-16 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| 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 | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-03 to 2024-09-16 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-03-03 to 2024-09-16 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-05-06 to 2025-02-26 | UCMR5 Analytical Results: CONCORDIA WATERWORKS DISTRICT 1 (LA1029003) |
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
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 →Concordia Waterworks District 1's phone number on EPA record is 318-757-4353. Its mailing address is CONCORDIA WATER WORKS DISTRICT NO 1, P.O. Box 768, FERRIDAY, LA 71334.
According to EPA's record, Concordia Waterworks District 1 uses groundwater from its own wells.
EPA's record shows 2 health-based violations for Concordia Waterworks District 1 in the 10 years to July 9, 2026. No open health-based violations on EPA record in the last 10 years. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Concordia Waterworks District 1's latest lead and copper round, which ended in December 2023. The federal action level is 15 µg/L.
PurityMap has no verified website for Concordia Waterworks District 1. Its phone number on EPA record is 318-757-4353. Its mailing address on EPA record is CONCORDIA WATER WORKS DISTRICT NO 1, P.O. Box 768, FERRIDAY, LA 71334. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.