Appendix 2: Table of expected net-gain ratios for different ecological values impacted by aggregate operations

These net-gain ratios do not apply to “No Go” zones.

These ratios apply to like for like features.

Features

Replacement Ratios (replaced : removed)
Within Greenbelt

(incl. NEP / ORMCP)

Outside Greenbelt
Key hydrologic features 3:1 1.5:1
Significant valleylands 3:1 1.5:1
Sandbarrens, alvars, savannahs, and tall grass prairies 3:1 1.5:1
Habitat of rare and special concern species 3:1 1.5:1
Fish habitat in accordance with provincial and federal requirements 3:1 1.5:1
Significant Wildlife Habitat subject to defined removal and replacement approach described in this document 3:1 1.5:1