No health-based violations on EPA record since 2016.
Serves about 5,939 people (2,671 connections) with surface water bought from St John's Water (SC1020002).
From EPA's record for SC1010009. PurityMap is independent of Seabrook Island Town of (1010009).
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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 February 2024 to November 2024.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| Perfluorooctanesulfonic acid (PFOS) | 7.5 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluorooctanoic acid (PFOA) | 5 ng/L | 4.0 ng/L federal MCL (2024) | Above a historical reference; current applicability unverified | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluorobutanesulfonic acid (PFBS) | 3.4 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 | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluorohexanoic acid (PFHxA) | 4.8 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Within a historical reference; current applicability unverified | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluoropentanoic acid (PFPeA) | 7.8 ng/L | No federal or state limit; shown for transparency | Detected, no limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| 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 | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| 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 | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| 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 | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| 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 | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| 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 | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| 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 | 2024-02-21 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-21 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-21 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-21 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-02-21 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2024-07-09 to 2024-11-19 | UCMR5 Analytical Results: SEABROOK ISLAND TOWN OF (1010009) (SC1010009) |
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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 →Seabrook Island Town of (1010009)'s phone number on EPA record is 843-768-0102. Its mailing address is 2902 A SEABROOK ISLAND RD, JOHNS ISLAND, SC 29453.
According to EPA's record, Seabrook Island Town of (1010009) uses surface water bought from St John's Water (SC1020002).
No health-based violations on EPA record since 2016. EPA also lists 3 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Seabrook Island Town of (1010009)'s latest lead and copper round, which ended in December 2025, was 4 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Seabrook Island Town of (1010009). Its phone number on EPA record is 843-768-0102. Its mailing address on EPA record is 2902 A SEABROOK ISLAND RD, JOHNS ISLAND, SC 29453. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.