No health-based violations on EPA record since 2016.
Serves about 86,000 people (35,361 connections) with groundwater from its own wells.
From EPA's record for FL4134357. PurityMap is independent of Florida Keys Aqueduct Authority J. Robert Dean Water Treatment Plant.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from September 2023 to April 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 50.3 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluorooctanoic acid (PFOA) | 9.9 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluorohexanesulfonic acid (PFHxS) | 3.4 ng/L | 10 ng/L federal MCL (2024) | Within a historical reference; current applicability unverified | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluorobutanesulfonic acid (PFBS) | 22.8 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Within the referenced health-based guidance value | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluorohexanoic acid (PFHxA) | 3.3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluorobutanoic acid (PFBA) | 10.2 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluoroheptanoic acid (PFHpA) | 3.3 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluoropentanoic acid (PFPeA) | 4 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| 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 | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| 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 | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| 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 | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| 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 | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| 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 | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| 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 | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-09-11 to 2024-04-30 | UCMR5 Analytical Results: FKAA J. ROBERT DEAN W.T.P. (FL4134357) |
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 →Florida Keys Aqueduct Authority J. Robert Dean Water Treatment Plant's phone number on EPA record is 305-296-2454. Its mailing address is BOX 1239/1100 KENNEDY DRIVE, KEY WEST, FL 33041-1239.
According to EPA's record, Florida Keys Aqueduct Authority J. Robert Dean Water Treatment Plant uses groundwater from its own wells.
No health-based violations on EPA record since 2016. EPA also lists 8 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Florida Keys Aqueduct Authority J. Robert Dean Water Treatment Plant's latest lead and copper round, which ended in December 2023, was 4 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Florida Keys Aqueduct Authority J. Robert Dean Water Treatment Plant. Its phone number on EPA record is 305-296-2454. Its mailing address on EPA record is BOX 1239/1100 KENNEDY DRIVE, KEY WEST, FL 33041-1239. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.