ZIP Code 90201
High RiskPFAS above EPA limits detected
11 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.
40
PFAS Detected
11
Above EPA Limits
7
Water Systems
913%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 375% of limit
Detected: 15.00 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 233% of limit
Detected: 9.30 ppt
GSWC - BELL, BELL GARDENS
CA1910011 High RiskWater Type
Surface Water
PFAS Detected
7
Above MCL
1
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 15.00ppt | 375% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 3.60ppt | 36% of limit
| 10 ppt | Below limit |
lithium | 47000.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 11.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 7.30ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 6.60ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.10ppt | No federal limit | — | Unregulated |
CALIFORNIA WATER SERVICE CO. - ELA
CA1910036 High RiskWater Type
Groundwater
PFAS Detected
6
Above MCL
1
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 8.60ppt | 215% of limit
| 4 ppt | ⚠ Exceeds MCL |
lithium | 47100.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 12.90ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 8.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 7.60ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.90ppt | No federal limit | — | Unregulated |
COMMERCE-CITY, WATER DEPT.
CA1910050 High RiskWater Type
Surface Water
PFAS Detected
7
Above MCL
1
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 9.30ppt | 233% of limit
| 4 ppt | ⚠ Exceeds MCL |
lithium | 65700.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 17.40ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 13.60ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 9.70ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 7.50ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 5.10ppt | No federal limit | — | Unregulated |
MAYWOOD MUTUAL WATER CO. #3
CA1910086 High RiskWater Type
Groundwater
PFAS Detected
4
Above MCL
2
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 26.40ppt | 660% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 7.30ppt | 183% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 6.10ppt | 61% of limit
| 10 ppt | Below limit |
lithium | 21800.00ppt | No federal limit | — | Unregulated |
CITY OF BELL GARDENS
CA1910108 High RiskWater Type
Surface Water
PFAS Detected
8
Above MCL
2
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 23.00ppt | 575% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 14.00ppt | 350% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 3.90ppt | 39% of limit
| 10 ppt | Below limit |
lithium | 61000.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 9.40ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 8.90ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 5.90ppt | No federal limit | — | Unregulated |
PFHpA Perfluoroheptanoic acid | 4.50ppt | No federal limit | — | Unregulated |
TRACT 180 MUTUAL WATER CO.
CA1910159 High RiskWater Type
Groundwater
PFAS Detected
4
Above MCL
2
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 24.00ppt | 600% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 6.50ppt | 163% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 5.90ppt | 59% of limit
| 10 ppt | Below limit |
PFHxA Perfluorohexanoic acid | 3.10ppt | No federal limit | — | Unregulated |
TRACT 349 MUTUAL WATER CO.
CA1910160 High RiskWater Type
Groundwater
PFAS Detected
4
Above MCL
2
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 36.50ppt | 913% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 8.20ppt | 205% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 6.60ppt | 66% of limit
| 10 ppt | Below limit |
PFBA Perfluorobutanoic acid | 5.30ppt | No federal limit | — | Unregulated |
Note: ZIP code 90201 is served by 7 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.