Aurora, Colorado Water Quality Report
Water quality data for 16 water systems serving 604,126 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 25.4 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 254% | Above guideline |
| PFBA | 0.008 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFBS | 0.003 | No federal limit | 2000.0 ug/L(EPA Health Advisory) | 0% | Below guideline |
| PFHxA | 0.006 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
| PFPeA | 0.007 | No federal limit | 1000.0 ug/L(EWG) | 0% | Below guideline |
Recommended Water Filters
Based on the contaminants detected in your water supply, these filtration systems are recommended:
Reverse Osmosis (RO)
Reverse osmosis systems remove up to 99% of PFAS compounds. Recommended for homes with detected PFAS.
Up to 99% PFAS removal
Get a Free Water Quality Consultation
Connect with a certified water treatment professional in Aurora, Colorado.
Get Water Quality Alerts
Be the first to know when water quality changes in Aurora.
Compliance & Violations
Active Violations (30)
52
Oct 1, 2025
52
Oct 1, 2025
51
Jul 1, 2025
71
Jul 1, 2025
71
Jul 1, 2025
71
Jul 1, 2025
71
Jul 1, 2025
71
Jul 1, 2025
51
Jul 1, 2025
72
Jul 1, 2025
71
Jul 1, 2025
66
Apr 1, 2025
66
Apr 1, 2025
75
Oct 17, 2024
35
Jul 11, 2024
35
Jul 11, 2024
5A
Jul 11, 2024
35
Jul 11, 2024
5A
Jul 11, 2024
35
Jul 11, 2024
5A
Jul 10, 2024
5A
Jul 10, 2024
71
Jul 1, 2024
51
Jul 1, 2024
51
Jul 1, 2024
71
Jul 1, 2024
5A
Jan 11, 2024
5A
Jan 11, 2024
71
Jul 1, 2023
71
Jul 1, 2023
Resolved Violations (470)
66
Oct 1, 2025
66
Oct 1, 2025
66
Oct 1, 2025
66
Oct 1, 2025
66
Oct 1, 2025
+ 465 more resolved violations
Frequently Asked Questions
Is Aurora tap water safe to drink?
Aurora's water meets all EPA maximum contaminant levels. However, 5 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Aurora tap water?
5 contaminants have been detected in Aurora's water supply across 16 water systems. See the full contaminant table above for details.
How can I improve my water quality in Aurora?
Install a water filter rated for the specific contaminants found in Aurora's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Aurora have any water quality violations?
Yes, Aurora currently has 112 active violations. See the violations section above for details.