ZIP Code 80134
High RiskPFAS above EPA limits detected
1 compound exceed EPA Maximum Contaminant Levels in water serving this ZIP code. Standard pitcher filters like Brita do not remove PFAS. See filter recommendations below.
14
PFAS Detected
1
Above EPA Limits
3
Water Systems
120%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 120% of limit
Detected: 4.80 ppt
COTTONWOOD WSD
CO0118020 ModerateWater Type
Surface Water
PFAS Detected
5
Above MCL
0
State
Colorado
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 4.00ppt | 100% of limit
| 4 ppt | Below limit |
PFPeA Perfluoropentanoic acid | 6.20ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 5.60ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 5.40ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.70ppt | No federal limit | — | Unregulated |
PINERY WWD
CO0118025 Low LevelWater Type
Groundwater
PFAS Detected
4
Above MCL
0
State
Colorado
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFPeA Perfluoropentanoic acid | 9.60ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 8.10ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 5.80ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 5.30ppt | No federal limit | — | Unregulated |
PARKER WSD
CO0118040 High RiskWater Type
Surface Water
PFAS Detected
5
Above MCL
1
State
Colorado
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOA Perfluorooctanoic acid | 4.80ppt | 120% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFPeA Perfluoropentanoic acid | 14.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 11.90ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 8.60ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 4.60ppt | No federal limit | — | Unregulated |
Note: ZIP code 80134 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.