D
51

US Water Score: D

Monmouth Junction, NJ 08852

Middlesex County · Population served: 45,450 · Data updated July 2026

Service-area evidence: EPA service-area records associate the listed system with this ZIP. Boundaries may still overlap or change.

Water Systems Serving This Area

🏔
SOUTH BRUNSWICK TWP W DI
Surface water · Pop. 45,450
PWSID: NJ1221004

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
0.0
15 ppb 1 ppb Passed

PFAS / Forever Chemicals

6 detected 1 above comparison value

UCMR5 occurrence results are screening information, not a finding of regulatory compliance or noncompliance. PFAS rules and compliance dates are evolving.

CompoundLevelEPA MCLHealth GuidelineStatus
PFOA23.0 ppt4 ppt4 pptAbove comparison value
PFBA13.0 pptNo standard500 pptNo federal MCL shown
PFPeA9.5 pptNo standardNo federal MCL shown
PFHxA8.8 pptNo standard400 pptNo federal MCL shown
PFHpA6.9 pptNo standardNo federal MCL shown
PFBS3.8 ppt2000 ppt100 pptBelow comparison value

Violation History (Last 5 Years)

12Total (5yr)
1Health-Based
10Major

Water Quality Summary

Understanding Your Water in Monmouth Junction

Tap water quality in Monmouth Junction, New Jersey (08852) receives an overall grade of D (Elevated record-based concern) with a score of 51 out of 100, based on analysis of EPA compliance data, contaminant testing, and violation history. This is 20 points below the New Jersey state average of 71. Compared to the national average (75), this area scores significantly lower. The area is served by South Brunswick Twp W Di, a surface water system providing water to approximately 45,450 people. Notably, 1 PFAS compound exceeds the EPA final MCL value used for comparison — a significant concern given the persistent nature of these chemicals. Over the past 5 years, water systems here have accumulated 12 violations, including 1 health-based violations.

Your Score 51/100 D
vs State 20 pts below New Jersey avg (71)
vs National 24 pts below national avg (75)

What a Grade D Means

A score of 51/100 flags significant system-level concerns in the US Water Score model for Monmouth Junction, NJ. These may include violations, contaminant levels near or above regulatory limits, or PFAS detections. Review the detailed records, your utility's Consumer Confidence Report, and qualified local guidance.

Surface water: sourced from rivers, lakes, or reservoirs

Health Information

What These Contaminants Mean for You

⚠️

Lead in Your Water

Lead is a toxic metal that can leach from aging pipes and plumbing fixtures.

Health Effects

Even low levels of lead exposure can cause developmental delays in children, kidney damage, and cardiovascular effects in adults. The EPA action level is 15 ppb, but health experts recommend no safe level of lead in drinking water.

Common Sources

Lead enters water primarily through corrosion of lead service lines, lead solder, and brass fixtures — especially in homes built before 1986.

What You Can Do

If lead is detected above 1 ppb, consider using a certified lead-removal filter (NSF/ANSI 53) for drinking and cooking water. Run cold water for 30 seconds before use if water has been sitting in pipes.

Common Questions

Frequently Asked Questions

Tap water in Monmouth Junction, New Jersey receives a grade of D (Elevated record-based concern) with a score of 51/100. This indicates significant water quality concerns based on violation history, contaminant levels, or enforcement actions. We recommend reviewing the specific contaminants detected below and considering a certified water filter.

ZIP code 08852 is served by 1 water system using surface water sources, providing water to approximately 45,450 people. Surface water systems are more susceptible to contamination from agricultural runoff, industrial discharge, and weather events, but typically undergo more extensive treatment including filtration and disinfection.

Lead levels in Monmouth Junction, New Jersey are 0.0 ppb, which is at or below the health guideline of 1 ppb. This is a positive result, though periodic testing is still recommended.

Yes — 6 PFAS compounds were detected in records associated with water serving Monmouth Junction, New Jersey, and 1 result exceeded the numerical EPA MCL value used for comparison. UCMR5 occurrence results alone are not a regulatory compliance determination. PFAS rules and compliance timelines are evolving; verify current information with the utility and EPA.

Water systems serving Monmouth Junction, New Jersey have received 12 violations in the last 5 years, including 1 health-based violation. Violations can range from paperwork issues (monitoring & reporting) to serious health-based violations where contaminant levels exceeded safe limits. Review the violation details above for specifics.

Based on detected contaminants (PFAS), residents in Monmouth Junction, New Jersey should consider: Reverse osmosis (RO) system — most effective for PFAS, lead, and other contaminants. Always look for filters with NSF/ANSI certification for the specific contaminants you want to remove.

Explore Nearby

Water Quality in Nearby ZIP Codes