No open health-based violations on EPA record in the last 10 years.
Serves about 4,517 people (1,806 connections) with groundwater from its own wells, and buys water from Tri-County Water Distbr Dist.
From EPA's record for AR0000601. PurityMap is independent of Dardanelle Waterworks.
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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 July 2017 | Surface Water Treatment Rule | – | – | Resolved |
| From August 2016 | Surface Water Treatment Rule | – | – | Resolved |
EPA required this system to test for 30 unregulated and emerging contaminants, from February 2025 to August 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 4.4 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluorohexanesulfonic acid (PFHxS) | 5.3 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2025-04-16 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluorobutanoic acid (PFBA) | 5.9 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| 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 | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| 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 | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| 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 | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| 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 | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| 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 | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| 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 | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| 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 | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-02-26 to 2025-08-13 | UCMR5 Analytical Results: DARDANELLE WATERWORKS (AR0000601) |
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 →Dardanelle Waterworks's phone number on EPA record is 479-229-4500. Its mailing address is 120 NORTH FRONT ST, DARDANELLE, AR 72834.
According to EPA's record, Dardanelle Waterworks uses groundwater from its own wells, and buys water from Tri-County Water Distbr Dist.
EPA's record shows 2 health-based violations for Dardanelle Waterworks 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.
The 90th-percentile lead result in Dardanelle Waterworks's latest lead and copper round, which ended in December 2025, was 1 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Dardanelle Waterworks. Its phone number on EPA record is 479-229-4500. Its mailing address on EPA record is 120 NORTH FRONT ST, DARDANELLE, AR 72834. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.