Changes to the National Pollutant Release Inventory (NPRI) Reporting Requirements for 2016 and 2017



Several significant changes have been made to the federal NPRI reporting requirements that will affect the 2016 reporting year.  In Ontario, since a toxic substance is defined as any substance listed in the NPRI Notice (as well as acetone), these changes have an impact on the Toxic Reduction Act (TRA) reporting/planning as well.

For one substance, namely cobalt (and its compounds), the mass threshold has been reduced from 10 tonnes to 50 kilograms.  In addition, the concentration threshold has also been reduced from 1% to 0.1%.

Twenty-one substances have been removed from NPRI Part 1, Group A list.  NPRI and TRA reporting requirements no longer apply for the following substances:

  • C.I. Acid Green 3 (CAS # 4680-78-8)
  • C.I. Basic Red 1 (CAS # 989-38-8)
  • C.I. Direct Blue 218 (CAS # 28407-37-6)
  • C.I. Food Red 15 (CAS # 81-88-9)
  • Calcium cyanamide (CAS # 156-62-7)
  • Chlorendic acid (CAS # 115-28-6)
  • Dimethyl phenol (CAS # 1300-71-6)
  • 2,6-Dinitrotoluene (CAS # 606-20-2)
  • Dinitrotoluene (mixed isomers) (CAS # 25321-14-6)
  • Hexachloroethane (CAS # 67-72-1)
  • Isosafrole (CAS # 120-58-1)
  • p-Nitrophenol (and its salts) (CAS # 100-02-7)
  • Paraldehyde (CAS # 123-63-7)
  • Pentachloroethane (CAS # 76-01-7)
  • o-Phenylphenol (and its salts) (CAS # 90-43-7)
  • Propargyl alcohol (CAS # 107-19-7)
  • p-Quinone (CAS # 106-51-4)
  • Safrole (CAS # 94-59-7)
  • Styrene oxide (CAS # 96-09-3)
  • Tetracycline hydrochloride (CAS # 64-75-5)
  • Vinylidene chloride (CAS # 75-35-4)

The requirement to report the concentration of substances released to surface waters has been added.  When a direct discharge to surface waters is reported, the average annual concentration (ppm) of the NPRI substance in the effluent is also required to be reported.

The deadline for reporting to the NPRI and TRA for the 2016 calendar year is June 1, 2017.

The deadline for reporting to the NPRI and TRA for the 2017 calendar year is June 1, 2018.

Toxic reduction plans for any newly reportable substances are due December 31 of the same year a facility submits its first annual report.

Trinity Consultants' Ontario office can assist your facility in assessing NPRI thresholds and, thereby, meet regulatory requirements.  For assistance, please contact Suzy Sabanathan at (416) 391-2527 x22.