Sunnyside
Is Sunnyside tap water safe to drink?
Mostly yes — Sunnyside scores 94/100. This report aggregates EPA drinking water data across 1 local system in Sunnyside. We found 47 total violations (8 unresolved).
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Sunnyside?
Expert Advice
Your water quality is excellent. Standard filtration is optional but can further enhance taste.
Buying a Filter?
Filter or no filter for Sunnyside water? Here's what the data says.
Baby Formula Safety
What new parents in Sunnyside should know about tap water safety.
Homebuyer's Perspective
Water quality is easy to overlook when evaluating a move to Sunnyside, but it can affect plumbing longevity and appliance lifespan. The high safety score (94/100) suggests lower risk for plumbing corrosion and appliance scaling.
Health & Family Safety
Residents should monitor Lead (90th percentile) levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.
View Health Risk Glossary →Compliance Record for Sunnyside
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Sunnyside.
Frequently Asked Questions
Is Sunnyside tap water safe to drink?
Mostly yes — Sunnyside scores 94/100.
How many water systems serve Sunnyside?
Sunnyside is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Sunnyside?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Sunnyside.
What is the water quality score for Sunnyside?
The water quality score for Sunnyside is 94 out of 100, based on EPA contaminant data, violation history, and testing results across the 1 system serving the city.
What are the top contaminants in Sunnyside?
The top contaminants detected in Sunnyside include Lead (90th percentile). View detailed information on our contaminants page.
Sunnyside Water Quality Summary
Sunnyside, WA receives a water quality score of 94/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Sunnyside's water quality is above the national average, with strong compliance records and low contaminant levels. Residents generally receive clean, safe tap water that meets EPA standards.
Sunnyside's score of 94 matches the Washington state average, and above the nationwide average of roughly 78/100 across all U.S. states.
Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology → Read our Washington water quality rankings report →
Key Contaminants
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Water Systems Serving Sunnyside (1)
Check Your Specific Address
Water quality can vary by neighborhood in Sunnyside.
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