CheckPFAS

ZIP Code 34688

High Risk
High Risk PFAS Risk Level

PFAS above EPA limits detected

2 compounds exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.

8
PFAS Detected
2
Above EPA Limits
1
Water System
923%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 923% of limit
Detected: 36.90 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 263% of limit
Detected: 10.50 ppt
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TARPON SPRINGS WATER SYSTEM

FL6521784 High Risk
Water Type
Groundwater
PFAS Detected
8
Above MCL
2
State
Florida
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
36.90ppt
923% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
10.50ppt
263% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
9.10ppt
91% of limit
10 pptBelow limit
PFBS
Perfluorobutane sulfonic acid
14.60pptNo federal limit—Unregulated
PFBA
Perfluorobutanoic acid
10.50pptNo federal limit—Unregulated
PFPeA
Perfluoropentanoic acid
10.20pptNo federal limit—Unregulated
PFHxA
Perfluorohexanoic acid
7.00pptNo federal limit—Unregulated
PFHpA
Perfluoroheptanoic acid
4.40pptNo federal limit—Unregulated

Data source: EPA Unregulated Contaminant Monitoring Rule, 5th cycle (UCMR 5) — January 2026 release.

UCMR 5 tested ~10,000 public water systems serving more than 25 people between 2023-2025 for 29 PFAS compounds.

Detection values represent the highest single-sample result measured at entry points to the distribution system.

View raw EPA data →