National Pollutant Release Inventory
Guidance Manual for the Wastewater Sector

Canadian Environmental Protection Act, 1999

National Pollutant Release Inventory
Guidance Manual for the Wastewater Sector

Canadian Environmental Protection Act, 1999

Acknowledgments
This Manual was prepared for Environment Canada by Marbek Resource Consultants Ltd., in partnership with Crechem Technologies Inc. and Delcan Corporation.

This Manual has been reviewed by the following individuals at Environment Canada during its preparation:

Wilfrid Jan (Project Authority), NPRI, Headquarters
René Damecour, NPRI, Quebec Region
Henry Quon, NPRI, Pacific and Yukon Region
Chris Roberts, NPRI, Atlantic Region
Nick Zhao, NPRI, Ontario Region
James Arnott, MWWE, Headquarters
John Clarke, ETAD, Atlantic Region

The Chemical Abstracts Service (CAS) Registry Number is the property of the American Chemical Society and any use or redistribution, except as required in supporting regulatory requirements and/or for reports to the government when the information and the reports are required by law or administrative policy, is not permitted without the prior, written permission of the American Chemical Society.

Disclaimer
Should any inconsistencies be found between this Manual and the official Canada Gazette notice and its amendment, the notice published on December 29, 2001 and the amendment published on December 28, 2002, in the Canada Gazette, Part I, wil prevail.

© Minister of Public Works and Government Services Canada
Catalogue # En40-495/1-2003E
ISBN 0-662-33775-1
EPSM-488

Table of Contents

• Introduction
• Exclusions from This Manual
• Terminology
• Step-by-Step Overview
• Information Sources

1. Chapter One

• 1.1 Overview
• 1.2 Definition of Wastewater Facility for NPRI-Reporting Purposes
• 1.3 Assessment of Whether a Wastewater Facility Met the Basic Reporting Criteria
• 1.4 Reporting Thresholds
• 1.5 Information Sources and Factors to Consider for Preliminary Assessment of NPRI Substances
• 1.6 Identification of a Short-List of NPRI Substances for Emission Estimation in Step 2

2. Chapter Two

• 2.1 Overview
• 2.2 Classify Substances
• 2.3 Identify Release Routes
• 2.4 Identification of Wastewater Treatment System Configuration and Process Characteristics
• 2.5 Identify Information Available on Each Substance
• 2.6 Choose a Suitable Emission Estimation Method
• 2.7 Calculate Amounts Released and Transferred

3. Chapter Three

• 3.1 Smaller Wastewater Collection and Treatment Facilities
• 3.2 Questions and Answers

Bibliography

Appendices

• Appendix A-1: NPRI Substances Not Identified in Tables 2a, b, c Reported Transferred
  to Municipal Sewage Treatment Plants (MSTPs) in 2000 by Various Industries
  
  
• Appendix A-2: NPRI Substances Reported Transferred To Municipal Sewage Treatment (MSTPs) in 2000 by Various Industries (Sorted by Industrial Discharger)
  
  
• Appendix B: Substances Used or Formed During the Wastewater Treatment Process
  
  
• Appendix C: Monitoring or Direct Measurement Method of Estimation
  
  
• Appendix D: Emission Factor Method of Estimation
  
  
• Appendix E: Mass Balance Methods
  
  
• Appendix F: Engineering Calculations
  
  
• Appendix G: Behaviour of NPRI Substances in Specific Wastewater Processes
  
  
• Appendix H: Calculation Examples
  
  
• Appendix I: Emission Estimating Software