ZIP Code 80817
High RiskPFAS above EPA limits detected
3 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.
17
PFAS Detected
3
Above EPA Limits
3
Water Systems
395%
Highest % of MCL
Compounds Exceeding EPA Limits
PFOS Exceeds EPA limit
0 ppt MCL: 4 ppt 395% of limit
Detected: 15.80 ppt
PFHxS Exceeds EPA limit
0 ppt MCL: 10 ppt 284% of limit
Detected: 28.40 ppt
PFOA Exceeds EPA limit
0 ppt MCL: 4 ppt 263% of limit
Detected: 10.50 ppt
FOUNTAIN CITY OF
CO0121275 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 |
|---|---|---|---|---|
lithium | 63300.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 76.70ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 50.80ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 33.80ppt | No federal limit | — | Unregulated |
SECURITY WSD
CO0121775 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 |
|---|---|---|---|---|
lithium | 33300.00ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 63.60ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 35.40ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 6.70ppt | No federal limit | — | Unregulated |
WIDEFIELD WSD
CO0121900 High RiskWater Type
Groundwater
PFAS Detected
9
Above MCL
3
State
Colorado
Data Period
2023–2025
PFAS Test Results
| Compound | Detected | vs. EPA Limit | EPA Limit | Status |
|---|---|---|---|---|
PFOS Perfluorooctane sulfonic acid | 15.80ppt | 395% of limit
| 4 ppt | ⚠ Exceeds MCL |
PFHxS Perfluorohexane sulfonic acid | 28.40ppt | 284% of limit
| 10 ppt | ⚠ Exceeds MCL |
PFOA Perfluorooctanoic acid | 10.50ppt | 263% of limit
| 4 ppt | ⚠ Exceeds MCL |
lithium | 78600.00ppt | No federal limit | — | Unregulated |
PFHxA Perfluorohexanoic acid | 140.60ppt | No federal limit | — | Unregulated |
PFPeA Perfluoropentanoic acid | 108.90ppt | No federal limit | — | Unregulated |
PFBA Perfluorobutanoic acid | 42.00ppt | No federal limit | — | Unregulated |
PFBS Perfluorobutane sulfonic acid | 16.70ppt | No federal limit | — | Unregulated |
Show 1 more compound detected at low levels
| PFPeS | 5.30 ppt | No federal limit |
Note: ZIP code 80817 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.