ZIP Code 77373
Low Level12
PFAS Detected
0
Above EPA Limits
11
Water Systems
N/A
Highest % of MCL
HARRIS COUNTY WCID 92
TX1010124 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 12500.00ppt | No federal limit | — | Unregulated |
TIMBER LANE UTILITY DISTRICT
TX1010278 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 19100.00ppt | No federal limit | — | Unregulated |
MEADOWHILL REGIONAL MUD
TX1010387 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 43300.00ppt | No federal limit | — | Unregulated |
HARRIS COUNTY WCID 110
TX1010482 Low LevelWater Type
Groundwater
PFAS Detected
2
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 28800.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 8.00ppt | No federal limit | — | Unregulated |
HARRIS COUNTY MUD 43
TX1010565 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 11300.00ppt | No federal limit | — | Unregulated |
TATTOR ROAD MUD
TX1010625 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 29500.00ppt | No federal limit | — | Unregulated |
HARRIS COUNTY MUD 82
TX1010630 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 27700.00ppt | No federal limit | — | Unregulated |
POSTWOOD MUD
TX1010631 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 13200.00ppt | No federal limit | — | Unregulated |
NORTHGATE CROSSING MUD 1
TX1013077 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 26900.00ppt | No federal limit | — | Unregulated |
NORTHGATE CROSSING MUD 2
TX1013078 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 29200.00ppt | No federal limit | — | Unregulated |
MONTGOMERY COUNTY MUD 119 SPRING TRAILS
TX1700773 Low LevelWater Type
Groundwater
PFAS Detected
1
Above MCL
0
State
Texas
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 24800.00ppt | No federal limit | — | Unregulated |
Note: ZIP code 77373 is served by 11 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.