CheckPFAS

ZIP Code 20112

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.

14
PFAS Detected
4
Above EPA Limits
2
Water Systems
198%
Highest % of MCL

Compounds Exceeding EPA Limits

PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 198% of limit
Detected: 7.90 ppt
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 158% of limit
Detected: 6.30 ppt

PWCSA - EAST

VA6153600 High Risk
Water Type
Surface Water
PFAS Detected
7
Above MCL
2
State
Virginia
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOA
Perfluorooctanoic acid
7.90ppt
198% of limit
4 ppt⚠ Exceeds MCL
PFOS
Perfluorooctane sulfonic acid
6.30ppt
158% of limit
4 ppt⚠ Exceeds MCL
PFPeA
Perfluoropentanoic acid
19.00pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
16.00pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
16.00pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
7.40pptNo federal limitUnregulated
PFHpA
Perfluoroheptanoic acid
6.60pptNo federal limitUnregulated

DALE CITY

VA6153625 High Risk
Water Type
Surface Water
PFAS Detected
7
Above MCL
2
State
Virginia
Data Period
2023–2025

PFAS Test Results

CompoundDetectedvs. EPA LimitEPA LimitStatus
PFOA
Perfluorooctanoic acid
7.10ppt
178% of limit
4 ppt⚠ Exceeds MCL
PFOS
Perfluorooctane sulfonic acid
5.70ppt
143% of limit
4 ppt⚠ Exceeds MCL
PFPeA
Perfluoropentanoic acid
21.90pptNo federal limitUnregulated
PFBA
Perfluorobutanoic acid
18.80pptNo federal limitUnregulated
PFHxA
Perfluorohexanoic acid
18.00pptNo federal limitUnregulated
PFBS
Perfluorobutane sulfonic acid
8.50pptNo federal limitUnregulated
PFHpA
Perfluoroheptanoic acid
6.10pptNo federal limitUnregulated
Note: ZIP code 20112 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 →