Drinking Water

The MCMUA Water Division has been providing drinking water to large portions of Morris County since 1958. The MCMUA water system consists of wells, pumps, tanks, and pipelines to deliver water from local underground aquifers to its wholesale customers. The MCMUA is a bulk water provider, meaning it supplies water to municipalities and other local water companies and they pipe and sell the water directly to Morris County residents and businesses.

Who We Help and Serve

Towns and Government
Getting the water from the ground to the town...

Residents
We don't serve residents directly but help each other...

Businesses
We don't serve business directly but this may help...

Quick Links

• Potable Water System Regulations, Specifications and Rate Schedule
• Drought Information
• Water Quality Reports
• Water Service Areas and Infrastructure
• Water Education
• Water Conservation
• Water Planning and Open Space Management

Current Water Quality Reports

2026 Annual Drinking Water Quality Report
(Data from Calendar Year 2025)

• MCMUA 2026 Annual Drinking Water Quality Report - Report includes results from water quality monitoring from the Morris County MUA for resuults from year 2025 for the year 2026.
• MCMUA's Service Line Inventory Form (DEP_10-S_00014)
   

The Morris County Municipal Utilities Authority (MCMUA) is pleased to present this summary of our Annual Drinking Water Quality Report. As Morris County’s regional wholesale water supplier, we deliver high-quality groundwater to 10 municipal and purveyor systems. Our water is drawn from local aquifers, disinfected with sodium hypochlorite, and pH-adjusted with lime to ensure optimal quality and safety.

Water Quality Test Results Summary

MCMUA routinely monitors for more than 100 regulated and unregulated contaminants. Below is a summary of key results from 2025 monitoring (some parameters tested in 2023 per NJDEP-approved reduced monitoring schedules):

Secondary Contaminants (Aesthetic)

Sodium levels ranged from 6–57 ppm. One well slightly exceeded the Recommended Upper Limit (RUL) of 50 ppm. For healthy individuals, sodium intake from drinking water is negligible compared with dietary sources. Individuals on a sodium-restricted diet should consult their physician.

Lead in Drinking Water

Lead is not present in MCMUA source water but can enter through household plumbing. We strongly encourage customers to follow these simple protective steps:

• Flush cold water for 30–60 seconds (or longer in larger buildings) before drinking or cooking if water has not been used for 6+ hours.
• Use only cold water for drinking, cooking, and baby formula.
• Remove and clean faucet aerators regularly.
• Consider certified lead-reducing filters if concerned.
• Have children tested for lead exposure (required by NJ law at ages 1 and 2).

For full guidance, visit: NJDEP Lead in Drinking Water

Source Water Assessment

NJDEP’s Source Water Assessment rates our 8 wells as having low-to-medium susceptibility to most contaminants. The full assessment is available at NJDEP SWAP Portal.

Additional Information

Drinking water, including bottled water, may reasonably be expected to contain very small amounts of some contaminants. The presence of contaminants does not necessarily indicate that water poses a health risk. More information is available from the EPA Safe Drinking Water Hotline at 1-877-927-6337.

MCMUA’s full 2026 Consumer Confidence Report (CCR) is available at this link or via your local water purveyor. We mailed the CCR to all wholesale customers and posted it on the internet as required.

Posted: March 2026 • PWS ID# NJ1432001