ZIP Code 81403
Low Level6
PFAS Detected
0
Above EPA Limits
4
Water Systems
N/A
Highest % of MCL
CHIPETA WD
CO0143176 Low LevelWater Type
Surface Water
PFAS Detected
2
Above MCL
0
State
Colorado
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 9870.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 29.50ppt | No federal limit | — | Unregulated |
SUBURBAN WATER
CO0143515 Low LevelWater Type
Surface Water
PFAS Detected
2
Above MCL
0
State
Colorado
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 9700.00ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 8.00ppt | No federal limit | — | Unregulated |
MONTROSE CITY OF
CO0143518 Low LevelWater Type
Surface Water
PFAS Detected
1
Above MCL
0
State
Colorado
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 16900.00ppt | No federal limit | — | Unregulated |
TRI COUNTY WCD
CO0143755 Low LevelWater Type
Surface Water
PFAS Detected
1
Above MCL
0
State
Colorado
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
lithium | 14400.00ppt | No federal limit | — | Unregulated |
Note: ZIP code 81403 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.