Water Quality in Trenton, NJ: 138 Violations - Grade N/A

Data: EPA Safe Drinking Water Information System (SDWIS)

Water Quality Overview

Trenton, New Jersey has directly mapped EPA water-system data for 13 ZIP codes. This page reports typed compliance facts and does not relabel the multi-source Home Safety Score as a drinking-water grade.

The available EPA records report 138 violations, including 5 health-based violations across 13 directly mapped ZIP records with reported counts.

Lead Levels

The average 90th percentile lead level across Trenton water systems is 0.0056 mg/L - within EPA limits. No exceedances appear among the 13 ZIP records with known lead status.

With 74% of homes built before 1986, Trenton has a higher-than-average risk of lead from older plumbing. Lead solder was banned in 1986, and homes built before this date may have lead in pipes, solder joints, or fixtures.

Water Systems Serving Trenton

Trenton is served by 4 community water systems regulated under the Safe Drinking Water Act. These systems collectively serve approximately 239,192 people across 28 ZIP codes.

Each water system is identified by a Public Water System ID (PWSID) and is required to:

• Test for over 90 regulated contaminants on a regular schedule
• Report results to the EPA and state regulators
• Issue an annual Consumer Confidence Report (CCR) to all customers
• Take corrective action when violations occur

The EPA has taken 130 enforcement actions against water systems serving Trenton. Enforcement actions range from informal compliance assistance to formal orders and penalties.

How to Check Your Water in Trenton

1. Enter your ZIP code on ZipCheckup to see your specific water system data, including contaminant levels and violation history

2. Request your CCR - your water utility must provide an annual Consumer Confidence Report with detailed test results for all monitored contaminants

3. Get a home test - certified kits cost $20–$50 and test for lead, bacteria, and common contaminants. Professional lab tests ($150–$400) cover a broader panel

4. Consider filtration - NSF-certified filters can remove specific contaminants. Reverse osmosis removes the broadest range; activated carbon is effective for chlorine and many organics

5. Check for advisories - monitor your local utility website and local news for boil water advisories or system alerts

Contaminants Detected in Trenton Water Systems

The following contaminants have been detected or caused violations across Trenton's water systems:

MCL = Maximum Contaminant Level (EPA enforceable standard). Health-based violations indicate levels that may pose direct health risks.

Violation Trend Over Time

Year-by-year EPA violations recorded for water systems serving Trenton:

Violations have decreased from 24 in 2021 to 12 in 2024, indicating improving compliance.

EPA Enforcement History

The EPA and state regulators have taken 28 enforcement actions against water systems serving Trenton. Recent actions:

Enforcement actions range from informal compliance assistance to formal orders and penalties. The most recent action was on 2026-03-24.

Trenton vs. Nearby New Jersey Cities

How Trenton's water quality compares to similar cities in New Jersey:

Recommended Water Filters for Trenton

Based on contaminants detected in Trenton's water supply, these filter types are recommended:

Granular Activated Carbon (GAC, under-sink or whole-house)

• Removes: Haloacetic Acid HAA5
• Effectiveness: 60-80%
• Cost range: $100–$600
• Certification: NSF/ANSI 53
• Recommended products:
  • Aquasana AQ-5200
  • Aquasana EQ-1000 Rhino

Granular Activated Carbon (GAC, whole-house POE)

• Removes: Trihalomethane (TTHM)
• Effectiveness: 80-99%
• Cost range: $400–$2000
• Certification: NSF/ANSI 53
• Recommended products:
  • Aquasana AQ-5200
  • Aquasana EQ-1000 Rhino

Water Quality by ZIP Code in Trenton

EPA coverage and recorded violations can differ across Trenton's ZIP codes. Missing counts are shown as unavailable, not zero:

Common Questions About Trenton Water

These are the most common questions residents search for about water quality in Trenton, New Jersey:

Is Trenton water hard or soft? Water hardness varies by source. Trenton's 4 water systems use multiple sources. Check your ZIP code report for specific hardness data.

Can I drink Trenton tap water? City-level EPA records cannot determine safety at a specific tap. The measured subset contains 5 health-based violations; check the affected utility record and consider certified testing.

What is the best water filter for Trenton? Based on detected contaminants, a granular activated carbon (gac, under-sink or whole-house) filter is most recommended. See our Water Filter Matcher for personalized recommendations.

Trenton vs. New Jersey Average

Understanding how Trenton compares to the broader New Jersey average helps contextualize your local water quality. Factors like water source, treatment methods, and infrastructure age all contribute to differences between cities in the same state.

To see how individual neighborhoods compare, check the ZIP code reports below - water quality can vary significantly even within Trenton.

ZIP Codes in Trenton

Trenton spans 28 ZIP codes. EPA water-system coverage is available for 13 directly mapped ZIP codes. Check each ZIP code for detailed contaminant data, violation history, and system information.

Data Sources

• Water quality: EPA Safe Drinking Water Information System (SDWIS)
• Lead/copper: EPA Lead and Copper Rule sampling data
• Radon: EPA Map of Radon Zones
• Enforcement: EPA ECHO database
• Filter recommendations: NSF/ANSI certified products

Source reporting periods vary. See each cited source for its publication schedule.