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Wastewater annual reports

Each year, Niagara Region submits performance summary reports for all wastewater systems we own and operate, as required by the Ministry of the Environment, Conservation and Parks.

2025 Statistics

A construction hard hat

11 wastewater treatment plants

Prohibited sign

95% pollutants removed

Plant sprouting from the ground

100% of biosolids reused

Two test tubes in a stand

67,485 million litres of wastewater treated

Water treatment plant

109 pumping stations

Water falling into a sewer drain

151 kilometres of sewers

How wastewater services are delivered

Wastewater collection and treatment in Niagara operates under a two-tier model shared between local municipalities and Niagara Region.

Local municipalities

Own and operate local gravity sewer mains that collect wastewater from homes and businesses within their boundaries.

Niagara Region

Owns and operates large gravity sewer trunk lines, most pumping stations and forcemains, and all wastewater treatment facilities across Niagara.

2025 Reports

2025 Annual Performance Report Introduction

2025 Annual Performance Report Executive Summary

Glossary of Terms

Reports by wastewater system

Select a system to download its annual performance report.

Provides trunk level collection of wastewater and wastewater treatment to Grimsby, Lincoln, and West Lincoln.

The Baker Road wastewater system provides trunk level collection of wastewater and wastewater treatment to Grimsby, Lincoln and West Lincoln.

The Crystal Beach wastewater system provides trunk level collection of wastewater and wastewater treatment to the Crystal Beach and Ridgeway areas in Fort Erie.

The Niagara Falls wastewater system provides trunk level collection of wastewater and wastewater treatment to Niagara Falls and the St. David's area in Niagara-on-the-Lake.

The Niagara-on-the-Lake wastewater system provides trunk level collection of wastewater and wastewater treatment to areas in Niagara-on-the-Lake.

The Port Dalhousie wastewater system provides trunk level collection of wastewater and wastewater treatment to areas in St. Catharines and Thorold.

The Port Weller wastewater system provides trunk level collection of wastewater and wastewater treatment to areas in Niagara-on-the-Lake, St. Catharines and Thorold.

The Queenston wastewater system provides wastewater treatment to the Queenston area in Niagara-on-the-Lake.

The Seaway wastewater system provides trunk level collection of wastewater and wastewater treatment to areas in Port Colborne.

The Stevensville-Douglastown Lagoon wastewater system provides trunk level collection of wastewater and wastewater treatment to the Black Creek, Douglastown and Stevensville areas in Fort Erie.

The Welland wastewater system provides trunk level collection of wastewater and wastewater treatment to Pelham, Welland and a portion of Thorold.

How we manage biosolids

Biosolids are the nutrient-rich material left over after treating sewage at our wastewater facilities. Instead of sending them to landfill, we recycle biosolids as fertilizer on approved local farmland recovering valuable nutrients and reducing waste.

Tanker trucks transport biosolids to Ministry of the Environment, Conservation and Parks approved farms, following strict rules about how and where it can be spread. About half of our biosolids are also dried and processed into a product used to improve soil quality.

The Garner Road Biosolids Facility on Chippawa Creek Road is Niagara Region's centralized biosolids management facility. It includes storage lagoons, storage tanks and onsite dewatering centrifuges for a total capacity of approximately 92,000 m3. The large storage tanks minimize the space needed for lagoons and help control air emissions. 

Our Biosolids Management Master Plan outlines how we manage biosolids in a way that is transparent, sustainable and environmentally responsible. To request a copy of the 2021 Biosolids Management Master Plan update, contact Sewer and Wastewater.

Benefits of recycling biosolids

Keeps biosolids out of landfill and reduces disposal costs

Returns nutrients to the soil rather than sending them to waste

Improves soil quality and helps it hold moisture

Reduces nutrient runoff into streams and groundwater

Provides local farmers with a cost-effective fertilizer

Supports sustainable farming practices across Niagara

Wastewater Quality Management System

Niagara Region is committed to source water protection through effective collection and treatment of wastewater. Our Wastewater Integrated Quality Management System is based on ISO 14001 environmental standards and guides our ongoing commitment to environmental compliance, continuous improvement and climate change initiatives.

We are committed to:

  • Fostering a culture of continuous improvement
  • Lessening our impact on the environment
  • Unwavering commitment to compliance
  • Supporting climate change initiatives
  • Holding ourselves accountable to the customer

To request a copy of the Niagara Region Wastewater Integrated Quality Management System Manual, contact Sewer and Wastewater.

Have a question?

Contact Sewer and Wastewater