D24/100
MIDDLESEX WATER COMPANY — Water Quality Report 2026
Serving 233,376 people · New Jersey
Water Source
Surface Water
County
—
System ID
NJ1225001
Violations
61
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOA | 0.006 µg/L | 0.004 µg/L | Over Limit |
Lead (90th percentile) | 0.001 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
3
Violations (last 5yr)
0
Unresolved
0
Health-Related
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: April 1, 2023 – May 25, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Violation related to Turbidity
When: February 10, 2022 – August 1, 2023Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring / Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2022 – June 30, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About MIDDLESEX WATER COMPANY
Is MIDDLESEX WATER COMPANY water safe to drink?
MIDDLESEX WATER COMPANY water receives a grade of D (24/100), which is considered poor. 1 contaminant(s) exceed EPA legal limits and 61 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has MIDDLESEX WATER COMPANY detected?
76 contaminants were tested in MIDDLESEX WATER COMPANY's water. Notable contaminants include PFOA, Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does MIDDLESEX WATER COMPANY have any EPA violations?
Yes, MIDDLESEX WATER COMPANY has 61 EPA violation(s) on record, with the most recent in 2023. Violation types include MR, Other, TT. 1 are health-based violations.
How many people does MIDDLESEX WATER COMPANY serve?
MIDDLESEX WATER COMPANY serves approximately 233,376 people, New Jersey. The system provides water to 1 community: Woodbridge Twp.-1225.
What type of water does MIDDLESEX WATER COMPANY provide?
MIDDLESEX WATER COMPANY sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is NJ1225001.
How does MIDDLESEX WATER COMPANY compare to other utilities in New Jersey?
MIDDLESEX WATER COMPANY scores 24/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our New Jersey state page for a full comparison of water systems.