WaterQ
Washington State Report All States
Official Status: March 2026

Is Pasco tap water safe to drink?

✓ Generally Safe
B

Generally acceptable, but review local hotspots — score 78/100.

Safety Score
78
out of 100

Still not sure if you need a filter in Pasco?

Read Decision Guide →

Pasco

Washington

View Washington state report Data updated: Mar 2026

Is Pasco tap water safe to drink?

Generally acceptable, but review local hotspots — score 78/100. This report aggregates EPA drinking water data across 1 local system in Pasco. We found 84 total violations (26 unresolved).

Real-Time Environment

Live: 03:00 PM
0mm Precipitation

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

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 Pasco?

Requirement Status
Recommended
🟡
💡

Expert Advice

Given the safety margin, a Carbon Block or sediment filter is recommended to improve taste and remove trace particulates.

Buying a Filter?

Filter requirements and certified reduction benchmarks for Pasco tap water.

→

Baby Formula Safety

Infant formula preparation risks, nitrate levels, and lead pipe guidance in Pasco.

→

Homebuyer's Perspective

Evaluating water infrastructure in Pasco protects plumbing and helps estimate water heater longevity. With a score of 78/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.

Property Impact: Positive / Stable

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 Pasco

84
Violations (5yr)
26
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

Based on EPA SDWIS violation records and contaminant test results for all water systems serving Pasco.

Frequently Asked Questions

Is Pasco tap water safe to drink?

Generally acceptable, but review local hotspots — score 78/100.

How many water systems serve Pasco?

Pasco is served by 1 public water system in our latest EPA-backed dataset.

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

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

What is the water quality score for Pasco?

The water quality score for Pasco is 78 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 Pasco?

The top contaminants detected in Pasco include Lead (90th percentile). View detailed information on our contaminants page.

Water Quality Score
78/100
Grade
B
Water Systems
1
Population
115,102

Pasco Water Quality Summary

Pasco, WA receives a water quality score of 78/100 (Grade B) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

Pasco's water quality is near the national average. While most systems meet EPA standards, some violations have been recorded. Residents may wish to review their specific water system's report for contaminant details.

Pasco's score of 78 is 16 points below the Washington state average of 94, and in line with the nationwide average of roughly 78/100 across all U.S. states.

For residents and prospective homebuyers in Pasco, this mid-size Washington city relies on a single water system drawing from the Pacific Northwest's generally clean source water, which is surrounded by forested mountains and the Puget Sound coastline. Households can take comfort in tap water that achieves flawless marks, indicating outstanding quality and safety across the board. This translates to regulatory reliability for daily use, showcasing the strength of the community's environmental resources.

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

Lead (90th percentile)
0.0019 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

Join the Pasco updates waitlist

We are developing email updates. This form records your interest; automated violation and boil-water advisory emails are not active.

We will use your address to contact you if updates become available. See our Privacy Policy.

Water Systems Serving Pasco (1)

Related

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