No health-based violations on EPA record since 2016.
Serves about 22,383 people (12,435 connections) with groundwater from its own wells.
From EPA's record for FL6424619. PurityMap is independent of On Top of the World.
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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 April 2024 to October 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 4.8 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluorobutanesulfonic acid (PFBS) | 5.8 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 | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluoropentanoic acid (PFPeA) | 3.3 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| 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 | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| 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 | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| 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 | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| 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 | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| 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 | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| 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 | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-04-09 to 2024-10-22 | UCMR5 Analytical Results: ON TOP OF THE WORLD (FL6424619) |
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 →On Top of the World's phone number on EPA record is 352-414-5454. Its mailing address is 8470 SW 79TH STREET ROAD, SUITE 3, OCALA, FL 34481.
According to EPA's record, On Top of the World uses groundwater from its own wells.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in On Top of the World's latest lead and copper round, which ended in December 2025. The federal action level is 15 µg/L.
PurityMap has no verified website for On Top of the World. Its phone number on EPA record is 352-414-5454. Its mailing address on EPA record is 8470 SW 79TH STREET ROAD, SUITE 3, OCALA, FL 34481. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.