WaterQ
Washington State Report All States
Official Status: March 2026

Is Tacoma tap water safe to drink?

✓ Generally Safe
A

Mostly yes — Tacoma scores 97/100.

Safety Score
97
out of 100

Still not sure if you need a filter in Tacoma?

Read Decision Guide →

Tacoma

Washington

View Washington state report Verified: Apr 2026

Is Tacoma tap water safe to drink?

Mostly yes — Tacoma scores 97/100. This report aggregates EPA drinking water data across 2 local systems in Tacoma. 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 Tacoma.

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 Tacoma?

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 Tacoma? See our analysis.

Baby Formula Safety

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

Homebuyer's Perspective

For those looking to relocate to Tacoma, water quality is a key factor in long-term property maintenance. The high safety score (97/100) suggests lower risk for plumbing corrosion and appliance scaling.

Property Impact: Positive / Stable

Health & Family Safety

Residents should monitor Manganese levels. Pregnant women and families with young children should consult the specific EPA health goals listed below.

View Health Risk Glossary →

Score Breakdown for Tacoma

EPA Compliance & Violations 85/100
Contaminant Safety Margin 97%

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

Frequently Asked Questions

Is Tacoma tap water safe to drink?

Mostly yes — Tacoma scores 97/100.

How many water systems serve Tacoma?

Tacoma is served by 2 public water systems in our latest EPA-backed dataset.

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

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

What is the water quality score for Tacoma?

The water quality score for Tacoma 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 Tacoma?

The top contaminants detected in Tacoma include Manganese, Benzene, Gross Alpha Particle Activity. View detailed information on our contaminants page.

Water Quality Score
97/100
Grade
A
Water Systems
21
Population
609,307

Tacoma Water Quality Summary

Tacoma, WA receives a water quality score of 97/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 21 public water systems serving the area.

Tacoma'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 →

Key Contaminants

Manganese Violation
59.8885 / 50 μg/L
0 μg/L MCL: 50 μg/L
Benzene Violation
5.3666 / 5 μg/L
0 μg/L MCL: 5 μg/L
Gross Alpha Particle Activity
14.8399 / 15 pCi/L
0 pCi/L MCL: 15 pCi/L
Total Trihalomethanes
78.4436 / 80 μg/L
0 μg/L MCL: 80 μg/L
Chloramine
3.9145 / 4 mg/L
0 mg/L MCL: 4 mg/L
Nitrite
0.9079 / 1 mg/L
0 mg/L MCL: 1 mg/L
Nitrate
9.0052 / 10 mg/L
0 mg/L MCL: 10 mg/L
Turbidity
0.8784 / 1 NTU
0 NTU MCL: 1 NTU

Water Systems Serving Tacoma (2)

Related

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