ZIP Code 90059
Low Level4
PFAS Detected
0
Above EPA Limits
4
Water Systems
N/A
Highest % of MCL
LIBERTY UTILITIES - COMPTON
CA1910021 Low LevelWater Type
Surface Water
PFAS Detected
1
Above MCL
0
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 67700.00ppt | No federal limit | — | Unregulated |
LOS ANGELES-CITY, DEPT. OF WATER & POWER
CA1910067 Low LevelWater Type
Surface Water
PFAS Detected
1
Above MCL
0
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 100000.00ppt | No federal limit | — | Unregulated |
GSWC - Willowbrook
CA1910072 Low LevelWater Type
Surface Water
PFAS Detected
1
Above MCL
0
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 42000.00ppt | No federal limit | — | Unregulated |
GSWC - SOUTHWEST
CA1910155 Low LevelWater Type
Surface Water
PFAS Detected
1
Above MCL
0
State
California
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 51300.00ppt | No federal limit | — | Unregulated |
Note: ZIP code 90059 is served by 4 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.