Sunnyside, Washington Water Quality Report
Water quality data for 2 water systems serving 17,157 people.
Water Source
Detected Contaminants
| Contaminant | Detected Level | EPA Limit (MCL) | Health Guideline | % of Limit | Status |
|---|---|---|---|---|---|
| lithium | 14.0 | No federal limit | 10.0 ug/L(EPA/USGS HBSL) | 140% | Above guideline |
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Compliance & Violations
Active Violations (5)
52
Jan 1, 1999
Violation
Unknown
Violation
Unknown
Violation
Unknown
Violation
Unknown
Resolved Violations (56)
71
Jul 1, 2025
3A
Feb 1, 2024 — Feb 29, 2024
27
Jan 1, 2017 — Dec 31, 2017
27
Jan 1, 2017 — Dec 31, 2017
27
Oct 1, 2014 — Dec 31, 2014
+ 51 more resolved violations
Frequently Asked Questions
Is Sunnyside tap water safe to drink?
Sunnyside'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 Sunnyside tap water?
1 contaminants have been detected in Sunnyside's water supply across 2 water systems. See the full contaminant table above for details.
How can I improve my water quality in Sunnyside?
Install a water filter rated for the specific contaminants found in Sunnyside's water. See our filter recommendations above. You can also request your utility's Consumer Confidence Report for the most current test results.
Does Sunnyside have any water quality violations?
Yes, Sunnyside currently has 5 active violations. See the violations section above for details.