ZIP Code 11530
High RiskPFAS 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.
11
PFAS Detected
4
Above EPA Limits
3
Water Systems
250%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 108% of limit
Detected: 4.30 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 250% of limit
Detected: 10.00 ppt
GARDEN CITY (V)
NY2902824 High RiskWater Type
Groundwater
PFAS Detected
2
Above MCL
1
State
New York
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 4.30ppt | 108% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFNA Perfluorononanoic acid | 7.10ppt | 71% of limit
| 10 ppt | Below limit |
HEMPSTEAD (V)
NY2902827 High RiskWater Type
Groundwater
PFAS Detected
1
Above MCL
1
State
New York
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 4.70ppt | 118% of limit
| 4 ppt | ⚠ Exceeds MCL |
WA OF WESTERN NASSAU
NY2902830 High RiskWater Type
Groundwater
PFAS Detected
8
Above MCL
2
State
New York
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 10.00ppt | 250% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOS Perfluorooctane sulfonic acid | 6.10ppt | 153% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 4.50ppt | 45% of limit
| 10 ppt | Below limit |
PFPeA Perfluoropentanoic acid | 9.50ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 7.40ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 7.10ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 3.60ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 3.40ppt | No federal limit | — | Unregulated |
Note: ZIP code 11530 is served by 3 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.