Guidance for the Reporting of Tailings and Waste Rock to the National Pollutant Release Inventory (1.4)

December 2009


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Table of Contents

  1. Preface
  2. Introduction
  3. Definitions
  4. Sector Description
  5. Reporting to the NPRI
  6. Criteria for Reporting of Substances
  7. Questions and Answers
  8. References and Bibliography


Appendix 1 – Comparison of 2006-2008 and 2009 NPRI Reporting Requirements for Tailings and Waste Rock
Appendix 2 – 2006 – 2008 NPRI Substances and Reporting for Tailings and Waste Rock
Appendix 3 – 2009 NPRI Substances and Reporting for Tailings and Waste Rock
Appendix 4 - Step-by-step Guide for Reporting Tailings and Waste Rock to the NPRI

Example Calculations

Sampling of Waste Rock: Information about sampling can be found in Chapter 8 of the document, "Prediction Manual for Drainage Chemistry from Sulphidic Geologic Materials".


Disclaimer:  Should any inconsistencies be found between this Guidance and the official Canada Gazette Notice(s) published on December 5, 2009, the Canada Gazette Notice(s) will prevail.

Note: These notices are available from the “Reporting to the NPRI” section of the National Pollutant Release Inventory (NPRI) website at www.ec.gc.ca/npri.