Denville
Is Denville tap water safe to drink?
Use extra caution — Denville scores 42/100. This report aggregates EPA drinking water data across 1 local system in Denville. We found 512 total violations (33 unresolved).
Real-Time Environment
Live: 03:00 AM☀️ No active precipitation. Rainfall can impact surface water turbidity and pollutant runoff in Denville.
Water Quality Impact
🛡️ Home Water Treatment Needs
Should you invest in filtration or softening for your home in Denville?
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 Denville tap water.
Baby Formula Safety
Infant formula preparation risks, nitrate levels, and lead pipe guidance in Denville.
Homebuyer's Perspective
Evaluating water infrastructure in Denville protects plumbing and helps estimate water heater longevity. With a score of 42/100, we recommend budgeting for high-quality point-of-entry filtration systems to protect your home's value.
Health & Family Safety
Current records show no major contaminant spikes, making Denville a preferred choice for health-conscious families.
View Health Risk Glossary →Compliance Record for Denville
Based on EPA SDWIS violation records and contaminant test results for all water systems serving Denville.
Frequently Asked Questions
Is Denville tap water safe to drink?
Use extra caution — Denville scores 42/100.
How many water systems serve Denville?
Denville is served by 1 public water system in our latest EPA-backed dataset.
How can I check water quality for my exact address in Denville?
Use the WaterQ search tool to look up your ZIP code and view nearby systems, contaminant levels, and recent violations for Denville.
What is the water quality score for Denville?
The water quality score for Denville is 42 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 Denville?
Current contaminant data for Denville is being updated. Check back soon or search your specific address for the latest results.
Denville Water Quality Summary
Denville, NJ receives a water quality score of 42/100 (Grade F) based on EPA Safe Drinking Water Information System (SDWIS) compliance data for 1 public water system serving the area.
Denville's water quality score is below the national average, indicating a history of EPA violations or elevated contaminant levels. Residents are encouraged to check their specific water system report and consider additional filtration.
Denville's score of 42 is 24 points below the New Jersey state average of 66, and below 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 New Jersey water quality rankings report →
No contaminant-specific recommendation is available from the records shown here.
How to check a filter claimJoin the Denville 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 Denville (1)
Check Your Specific Address
Water quality can vary by neighborhood in Denville.
Related
Quick compare in New Jersey
Compare Denville water quality: View all states · Contaminant library · How we score water quality