Public Water Partners

ISELIN, NJ · Middlesex County

MIDDLESEX WATER COMPANY Water System

Consumer Confidence Report status

MIDDLESEX WATER COMPANY must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.

As of August 1, 2026, EPA's federal records show no open violations for MIDDLESEX WATER COMPANY.

Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace New Jersey’s official records. Always confirm current status with New Jersey before making decisions based on this information.

System facts

System ID (PWSID)
NJ1225001
System type
Community Water System
Population served
233,376
Service connections
58,344
Ownership
privately owned
Water source
surface water (rivers, lakes, or reservoirs)

MIDDLESEX WATER COMPANY is among the 8 largest community water systems in New Jersey, serving 233,376 people from surface water.

As of August 1, 2026, its federal record holds 10 entries between 1998 and 2022, all of which EPA lists as closed. Nothing has been added since 2022.

Of the 10, 7 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves the Lead and Copper Rule, the Consumer Confidence Rule, and inorganic chemicals.

Violation history

  • Public Notification Violation without NPDWR Violation

    —

    Public Notice

    February 10, 2022 – August 1, 2023

    Resolved

  • Water Quality Parameter M/R

    —

    Lead and Copper Rule

    January 1, 2022 – June 30, 2022

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2020 – July 29, 2020

    Resolved

  • Follow-up Or Routine LCR Tap M/R

    —

    Lead and Copper Rule

    October 1, 2018 – October 24, 2018

    Resolved

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2018 – July 23, 2018

    Resolved

  • Water Quality Parameter M/R

    —

    Lead and Copper Rule

    January 1, 2017 – February 21, 2017

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 2014 – May 7, 2014

    Resolved

  • Monitoring, Repeat Major (TCR)

    —

    Coliform (TCR)

    June 1, 2013 – June 30, 2013

    Resolved

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 2005 – December 31, 2005

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    April 1, 1998 – June 30, 1998

    Resolved

Resolved addressed and confirmed by the state

Enforcement actions

No enforcement actions on record for this system.

Common questions

Is MIDDLESEX WATER COMPANY required to publish a Consumer Confidence Report?

Yes. MIDDLESEX WATER COMPANY is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.

When is MIDDLESEX WATER COMPANY’s next Consumer Confidence Report due?

MIDDLESEX WATER COMPANY’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.

Does MIDDLESEX WATER COMPANY have any open drinking water violations on record?

As of August 1, 2026, EPA's federal records show no open violations for MIDDLESEX WATER COMPANY.

What is a Consumer Confidence Report?

A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.

Contact

FULLAGAR, ROBERT

732-638-7537

ISELIN, NJ 08830