CheckPFAS

ZIP Code 33404

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.

16
PFAS Detected
4
Above EPA Limits
2
Water Systems
775%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 775% of limit
Detected: 31.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 350% of limit
Detected: 14.00 ppt

RIVIERA BEACH UTILITY DISTRICT, CITY OF

FL4501229 High Risk
Water Type
Groundwater
PFAS Detected
7
Above MCL
2
State
Florida
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
31.00ppt
775% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
14.00ppt
350% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
7.20ppt
72% of limit
10 pptBelow limit
PFPeA
Perfluoropentanoic acid
6.90pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
5.80pptNo federal limitUnregulated
PFHpA
Perfluoroheptanoic acid
4.20pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
3.80pptNo federal limitUnregulated

PALM BEACH COUNTY WATER UTILITIES

FL4504393 High Risk
Water Type
Groundwater
PFAS Detected
9
Above MCL
2
State
Florida
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOS
Perfluorooctane sulfonic acid
20.00ppt
500% of limit
4 ppt⚠ Exceeds MCL
PFOA
Perfluorooctanoic acid
9.00ppt
225% of limit
4 ppt⚠ Exceeds MCL
PFHxS
Perfluorohexane sulfonic acid
6.40ppt
64% of limit
10 pptBelow limit
6:2 FTS
6:2 Fluorotelomer sulfonic acid
13.00pptNo federal limitUnregulated
PFPeA
Perfluoropentanoic acid
7.70pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
6.50pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
6.10pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
5.00pptNo federal limitUnregulated
Show 1 more compound detected at low levels
PFHpAPerfluoroheptanoic acid3.10 pptNo federal limit
Note: ZIP code 33404 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 →