Rationale for Exemption to Public Comment:
The purpose of this notice is to inform the public, municipalities and industries of the availability of 10 best management practices (BMP) documents for industrial discharges to municipal sewers. The objective is to share information and knowledge that support Ontario’s overall goals of safe drinking water and a sustainable Great Lakes Basin Ecosystem.
The sewer use BMP documents are not ministry policy but rather information that can be used by municipalities and industries to meet local needs. The ministry has worked closely with the cities of Windsor, London, Toronto and Halton Region to develop 10 best management practices documents for reducing harmful pollutants in industrial discharges to municipal sewer systems. The sewer use BMP documents contain information about pollution prevention and pre-treatment technologies that could be undertaken by industries in support of the local municipal sewer use program.
Safe, clean drinking water is a priority. Ontario’s approach to safeguarding drinking water is based on the commitment to implement all of Commissioner O’Connor’s recommendations resulting from the judicial inquiry into the Walkerton tainted water tragedy. The sewer use BMP documents will provide municipalities and industries with additional tools to protect source water by better managing harmful pollutants prior to their discharge to municipal sewers. The sewer use BMP documents support one of many of the O’Connor recommendations.
The importance of the Great Lakes Basin Ecosystem and the need to safeguard the basin ecosystem is recognized through the Canada-Ontario Agreement Respecting the Great Lakes Basin Ecosystem (COA). The sewer use BMP documents support Ontario’s COA commitments.
The sewer use BMP documents provide procedural and technical information about pollution prevention and pre-treatment technologies that could be undertaken by industries with wastewater discharge in support of the municipal sewer use program.
- Elimination and reduction of substances.
- Operating procedures and housekeeping.
- Education and training.
- Estimated effectiveness on effluent quality.
- High-level, assumption-based pollution prevention cost estimates.
- Application of treatment technologies such as precipitation, biological treatment, granular activated carbon and reverse osmosis.
- Estimated effectiveness on effluent quality.
- Estimate of generic treatment costs, including capital and operating costs.
The titles of the 10 sewer use best management practices documents are listed below. Nine BMP documents were developed based on a sector-substance basis for 6 industrial sectors. One additional non-sector specific BMP document was prepared.
- Best Management Practices - Textiles Sector: Nonylphenol and Its Ethoxylates and Chromium
- Best Management Practices - Fabricated Metal Products Sector: Cadmium, Lead, and Copper
- Best Management Practices - Motor Vehicle Parts Manufacturing Sector: Cadmium and Nonylphenol and Its Ethoxylates
- Best Management Practices - Automotive Repair and Maintenance: Cadmium and PAHs
- Best Management Practices - Dry Cleaning and Laundry Services: Nonylphenol and Its Ethoxylates, Cadmium, and Mercury
- Best Management Practices - Chemical Manufacturing Sector: Cadmium, Chromium, Copper, Mercury, Zinc, Nonylphenol and Its Ethoxylates, and Vinyl Chloride
- Best Management Practices - Chemical Manufacturing Sector: Resin, Synthetic Rubber, and Artificial and Synthetic Fibres and Filaments Manufacturing: Cadmium, Chromium, Copper, Mercury, Zinc, Nonylphenol and Its Ethoxylates, and Vinyl Chloride
- Best Management Practices - Chemical Manufacturing Sector: Pesticide, Fertilizer, and Other Agricultural Chemical Manufacturing: Cadmium, Chromium, Copper, Mercury, Zinc, and Nonylphenol and Its Ethoxylates
- Best Management Practices - Chemical Manufacturing Sector: Paint, Coating, and Adhesive Manufacturing: Cadmium, Chromium, Copper, Mercury, Zinc, and Nonylphenol and Its Ethoxylates
- Best Management Practices 1,4-Dichlorobenzene, 3,3-Dichlorobenzidine, Hexachlorobenzene, and Pentachlorophenol: Non-Sector Specific Practices
The development of the sewer use BMP documents is an initiative that supports the principles of the Environmental Protection Act (EPA) and the Ontario Water Resources Act (OWRA).
The 10 sewer use BMP documents are available for downloading from the Ministry of the Environment website http://www.ene.gov.on.ca/en/publications/forms/index.php#bmp or
Printed reports may be purchased from the ministry’s Public Information Centre by contacting (416) 325-4000 or 1-800-565-4923.
Senior Policy Analyst
Ministry of the Environment
Integrated Environmental Policy Division
Land and Water Policy Branch
77 Wellesley Street West
The following government offices have additional information regarding this
To arrange a viewing of these documents please call the Ministry Contact or the Office listed below.
Public Information Centre
135 St. Clair Avenue West
Toll Free Phone: