(413) 436-9819

office@warrenwater.works

Safe drinking water starts with careful treatment and monitoring

The Warren Water District treats and monitors the public water supply in accordance with the requirements of the Massachusetts Department of Environmental Protection (DEP) to help ensure safe, reliable drinking water throughout the District.

This page explains how water quality is monitored, why chlorine is used in the system, and how the District works to balance treatment effectiveness with customer concerns about taste and odor.

Illustration depicting the idea of water quality and testing.
Water Quality

Monitoring water quality throughout the system

Water from the Warren Water District is sampled and tested regularly by certified laboratories to ensure compliance with state drinking water standards.

Both source water and treated water are monitored for contaminants and treatment performance. Annual water quality information is made available to customers through the District’s Consumer Confidence Report.

Why chlorine is used

The Warren Water District is required to maintain a chlorine residual throughout the distribution system to help prevent bacterial growth and maintain safe drinking water conditions.

While some customers may notice chlorine odor or taste from time to time, chlorine remains one of the most widely used and effective methods of protecting public drinking water systems.

The District works to maintain chlorine levels as low as regulations allow while still meeting public health and operational requirements.

Why water may sometimes smell or taste different

Changes in temperature, water usage, seasonal conditions, or chlorine levels can occasionally affect the taste or odor of drinking water.

Customers who are sensitive to chlorine taste or odor may benefit from:

  • Refrigerator filter systems
  • Activated carbon filter pitchers
  • Faucet-mounted filters
  • Under-sink filtration systems
  • Whole-home filtration systems in more sensitive situations

The District understands that some customers are especially sensitive to chlorine and continues working to balance treatment effectiveness with customer comfort whenever possible.

Protecting water quality through treatment

The Warren Water District’s treatment process is designed to address naturally occurring iron and manganese while helping maintain safe drinking water throughout the distribution network.

The treatment plant, storage facilities, and distribution system all work together to support consistent water quality and regulatory compliance across the District.

Water Quality Reports

2025 Water Quality Report

Release Date

February 6, 2026
Customer support

Questions or concerns about your water?

The Warren Water District encourages customers to contact the office with questions about water quality, chlorine, testing, or treatment operations.

Providing clear information and maintaining transparency with the community are important parts of the District’s ongoing commitment to public service.

Office@WarrenWater.works

In the event of a water emergency, please contact the Warren Police Department at (413) 436-9595.