Assessment of Impact Significance Methodology, NWT Diamonds Project EIS (BHP Billiton, December 1995)
This document is a response to panel questions regarding the assessment methodology for impact significance in the NWT Diamonds Project Environmental Impact Statement. It explains how six impact attributes (geographic extent, duration/frequency, reversibility, ecological/social context, probability, and future resource capacity) were integrated into a two-dimensional significance matrix based primarily on spatial and temporal criteria to classify residual environmental effects as major, moderate, minor, or negligible.
- Date
- 1995
- Document type
- regulatory-filing
- Parties
- Environmental Assessment Panel, Environment Canada, Agriculture Canada, National Defence
- Locations
- NWT Diamonds Project, Northwest Territories, Southern Arctic Ecozone, Takijuq Lake Upland Ecoregion, Ecosection 168, Queen Maud Gulf, Great Slave Lake, Great Bear Lake, Bathurst caribou herd range, Victoria Island, Coronation Gulf, Coppermine, Fort Franklin, Yellowknife, Lac de Gras, Takijuq Lake
- Parameters
- impact significance, residual effects, geographic extent, temporal duration, valued ecosystem components, caribou migration, water quality, hydrology, air quality, reversibility, ecological context, social context, probability, renewable resource capacity
- Pages
- 9
Original document
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