Arvada, Colorado Water Quality Report
Water quality data for 7 water systems serving 173,445 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 9.6 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 96% | Near guideline |
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Compliance & Violations
Active Violations (6)
66
Oct 1, 2025
66
Oct 1, 2025
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (121)
36
Dec 1, 2024 — Dec 31, 2024
36
Dec 1, 2024 — Dec 31, 2024
3A
Dec 1, 2024 — Dec 31, 2024
3A
Dec 1, 2024 — Dec 31, 2024
3A
Dec 1, 2024 — Dec 31, 2024
+ 116 more resolved violations
Frequently Asked Questions
Is Arvada tap water safe to drink?
Arvada's water meets all EPA maximum contaminant levels. However, 1 contaminants were detected at various levels. Some residents may prefer additional filtration for peace of mind.
What contaminants are in Arvada tap water?
1 contaminants have been detected in Arvada's water supply across 7 water systems. See the full contaminant table above for details.
How can I improve my water quality in Arvada?
Install a water filter rated for the specific contaminants found in Arvada's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Arvada have any water quality violations?
Yes, Arvada currently has 6 active violations. See the violations section above for details.