CheckPFAS

ZIP Code 33031

High Risk
High Risk PFAS Risk Level

PFAS above EPA limits detected

4 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.

19
PFAS Detected
4
Above EPA Limits
2
Water Systems
935%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 825% of limit
Detected: 33.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 350% of limit
Detected: 14.00 ppt

MDWASA - MAIN SYSTEM

FL4130871 High Risk
Water Type
Groundwater
PFAS Detected
11
Above MCL
2
State
Florida
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
33.00ppt
825% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
14.00ppt
350% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
9.40ppt
94% of limit
10 pptBelow limit
PFNA
Perfluorononanoic acid
6.50ppt
65% of limit
10 pptBelow limit
6:2 FTS
6:2 Fluorotelomer sulfonic acid
190.00pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
58.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
56.00pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
22.00pptNo federal limitUnregulated
Show 3 more compounds detected at low levels
PFHpAPerfluoroheptanoic acid20.00 pptNo federal limit
8:2 FTS8:2 Fluorotelomer sulfonic acid9.60 pptNo federal limit
PFBSPerfluorobutane sulfonic acid4.60 pptNo federal limit

MDWASA/REX UTILITIES

FL4131202 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
37.40ppt
935% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
10.60ppt
265% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
3.80ppt
38% of limit
10 pptBelow limit
PFBS
Perfluorobutane sulfonic acid
17.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
14.60pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
11.10pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
9.80pptNo federal limitUnregulated
PFHpA
Perfluoroheptanoic acid
6.60pptNo federal limitUnregulated
Note: ZIP code 33031 is served by 2 separate water utilities. Results above show data for each system independently.

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 →