WaterQ
Connecticut State Report All States
Official Status: March 2026

Is New Haven tap water safe to drink?

✓ Generally Safe
A

Mostly yes — New Haven scores 90/100.

Safety Score
90
out of 100

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New Haven

Connecticut

View Connecticut state report Data updated: Mar 2026

Is New Haven tap water safe to drink?

Mostly yes — New Haven scores 90/100. This report aggregates EPA drinking water data across 1 local system in New Haven. We found 62 total violations (6 unresolved).

Real-Time Environment

Live: 11:00 AM
0mm Precipitation

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

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 New Haven?

Requirement Status
Optional
🟢
💡

Expert Advice

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

Buying a Filter?

Filtration technologies matched to New Haven contaminant records.

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Baby Formula Safety

Guidance on preparing infant formula using municipal tap water in New Haven.

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Homebuyer's Perspective

Municipal water quality in New Haven directly influences pipe corrosion rates and home filtration needs. The high safety score (90/100) suggests lower risk for plumbing corrosion and appliance scaling.

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 New Haven

62
Violations (5yr)
6
Unresolved
1
Contaminants Tracked
0
Exceeding EPA Limit

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

Frequently Asked Questions

Is New Haven tap water safe to drink?

Mostly yes — New Haven scores 90/100.

How many water systems serve New Haven?

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

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

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

What is the water quality score for New Haven?

The water quality score for New Haven is 90 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 New Haven?

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

Water Quality Score
90/100
Grade
A
Water Systems
1
Population
418,900

New Haven Water Quality Summary

New Haven, CT receives a water quality score of 90/100 (Grade A) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.

New Haven'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.

New Haven's score of 90 is 13 points above the Connecticut state average of 77, and above the nationwide average of roughly 78/100 across all U.S. states.

Prospective homebuyers looking at New Haven, Connecticut, will find that this large coastal city's single water system delivers high-performing tap water. While operating across dense, older urban and suburban infrastructure typical of the Northeast often presents distribution challenges, the local supply consistently achieves excellent quality marks. This reliable performance maintains reliable compliance for daily household use, demonstrating that the community's water remains clean and well-managed.

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

Key Contaminants

Lead (90th percentile)
0.001 / 0.015 mg/L
0 mg/L MCL: 0.015 mg/L

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Water Systems Serving New Haven (1)

Related

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