WaterQ
California State Report All States
Official Status: March 2026

Is Clearlake tap water safe to drink?

✓ Generally Safe
B

Mostly yes — Clearlake scores 86/100.

Safety Score
86
out of 100

Still not sure if you need a filter in Clearlake?

Read Decision Guide →

Clearlake

California

View California state report Verified: Apr 2026

Is Clearlake tap water safe to drink?

Mostly yes — Clearlake scores 86/100. This report aggregates EPA drinking water data across 0 local systems in Clearlake. We found 0 total violations (0 unresolved).

Real-Time Environment

Live: 02:45 PM
0mm Precipitation

☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Clearlake.

Water Quality Impact

✅ Minimal Impact Localized weather conditions may influence test result variability.

🛡️ Home Water Treatment Needs

Should you invest in filtration or softening for your home in Clearlake?

Requirement Status
Optional
🟢
💡

Expert Advice

Your water quality is excellent. Standard filtration is optional but can further enhance taste.

Buying a Filter?

Should you buy a water purifier in Clearlake? See our analysis.

Baby Formula Safety

Is Clearlake tap water safe for infants? Critical safety guide.

Homebuyer's Perspective

For those looking to relocate to Clearlake, water quality is a key factor in long-term property maintenance. The high safety score (86/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

Health & Family Safety

Current records show no major contaminant spikes, making Clearlake a preferred choice for health-conscious families.

View Health Risk Glossary →

Score Breakdown for Clearlake

EPA Compliance & Violations 85/100
Contaminant Safety Margin 86%

*Scores are calculated using weighted EPA monitoring data from the past 5 years.

Frequently Asked Questions

Is Clearlake tap water safe to drink?

Mostly yes — Clearlake scores 86/100.

How many water systems serve Clearlake?

Clearlake is served by 0 public water systems in our latest EPA-backed dataset.

How can I check water quality for my exact address in Clearlake?

Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Clearlake.

What is the water quality score for Clearlake?

The water quality score for Clearlake is N/A out of 100, based on EPA contaminant data, violation history, and testing results for all serving water systems.

What are the top contaminants in Clearlake?

Current contaminant data for Clearlake is being updated. Check back soon or search your specific address for the latest results.

Water Quality Score
86/100
Grade
B
Water Systems
2
Population
13,700

Clearlake Water Quality Summary

Clearlake, CA receives a water quality score of 86/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 2 public water systems serving the area.

Clearlake'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.

Water quality data is sourced from the U.S. EPA SDWIS database and updated quarterly. Learn about our scoring methodology →

Water Systems Serving Clearlake (0)

Water system data coming soon for Clearlake.

Related

Compare Clearlake water quality: View all states · Contaminant library · How we score water quality