Terrestrial ERA

Terrestrial/Freshwater Testing Included : 

  • Soil chemistry and physical characteristics
  • Freshwater sediment and surface water chemistry analysis 3. Soil invertebrate tissue sampling
  • Vegetation community assessment
  • Breeding bird and fledgling survey
  • Small mammal survey (including tissue analysis)
  • Rare vascular plant survey
  • Fish and electro-fishing survey 

Conclusions of Terrestrial/Freshwater Study : 

  • Low risk to vegetation excluding near-field areas immediately south/southwest of Smelter 
  • Low risk to soil invertebrates, birds, and mammals. 
  • Low risk to freshwater aquatic life in nearby streams (invertebrates, fish). Potential for moderate risk to benthic invertebrates in unnamed stream near new slag pile.

Conceptual Model for Terrestrial and Freshwater Aquatic Receptors in the ERA



Soil Sampling Locations for the Shore Road Soil Study and Terrestrial 

Marine ERA


Marine Testing Included :

  • Sediment/beach chemistry and physical characteristics 

  • Marine water chemistry analysis 
  • Benthic invertebrate abundance and diversity 
  • Shellfish health assessment including mussel deployment and monitoring 
  • Fish health assessment (survival, growth, condition and reproduction) 
  • Fish, aquatic invertebrate and shellfish tissue analysis 
  • Salvage chick (common tern) organ tissue and egg analysis 
  • Shorebird population and nesting survey 

Conclusions of Marine Study : 

  • Low risk to marine phytoplankton, water-column invertebrates, shellfish and fish 
  • Low to moderate risk to marine benthic invertebrate community limited to effluent discharge points
  • Low to moderate risk to avian species nesting and foraging in area 
    • Low risk to common tern based on multiple lines of evidence including modelled exposures, clutch counts, measured residues in eggs and bird organs, and food (fish) tissue concentrations 
    • Low risk to black-crowned night heron based on modelled exposures 
    • Potential for moderate risk to sandpiper generally limited to Belledune Point but effect on local population considered unlikely. 

Conceptual Model for Marine Aquatic Receptors in ERA



Sampling Locations for the Marine ERA