Pierre River Mine Project

PIERRE RIVER MINE
SUPPLEMENTAL INFORMATION
PART 1: OVERVIEW
EIA Volume
Number
PRM EIA
Update:
Supplemental
Information,
Volume 2
ERRATA
EIA, EIA UPDATE AND ESR ERRATA
Section 2.2
Table 2-1 lists the errata from the EIA, environmental setting reports (ESRs) and
the 2008 EIA Update.
Table 2-1: Environmental Errata
Page
Number Error Correction
21-7 PRM SIR 267a was incorrect in the
following statements:
“gravels as a result of mining is 2.1
km (see EIA, Volume 3, Section
6.5.1.3, page 5)”
“the EIA for Shell’s Jackpine Mine
Expansion and Pierre River Mine
project (Shell 2007) indicates that a
drawdown of 0.1 m is expected up to
3 km west of, and up to 5 km north
and south of, the Pierre River Mine
pit limits”
21-46 PRM SIR 294a was incorrect in the
following statements:
“For the purpose of this hydrological
assessment, a drawdown of more
than 1 m is considered to have the
potential to negatively affect fen
structure and function in a manner
that could reduce flood attenuation
capacity.”
“Groundwater drawdown of more
than 1 m in fens has the potential to
negatively affect 9% (1,099 ha) of
wetlands within the watershed
areas.”
“A water level drawdown of over 1 m
may results in a shift in the structure
and function of fens on landscapes,
resulting in a reduced capacity to
attenuate flows.”
These statements have been
corrected as follows: “gravels as a
result of mining is 2.1 km (see
Suncor [2007], Volume 3, Section
6.5.1.3, page 5).” “the updated
drawdown for Shell’s Jackpine Mine
Expansion (refer to Update
Appendix, Section 3) indicates that a
drawdown of 0.1 m is expected up to
7.8 km from the Jackpine Mine
Expansion project footprint in certain
areas (see Figure 3.1-1 in Section 3
of the Update Appendix).
These statements have been
corrected as follows: “For the
purpose of this hydrological
assessment, a drawdown of more
than 0.1 m is considered to have the
potential to negatively affect wetland
structure and function in a manner
that could reduce flood attenuation
capacity.”
“Groundwater drawdown of more
than 0.1 m in fens has the potential
to negatively affect 37% (7,153 ha)
of wetlands within the LSAs.”
“A water level drawdown of over 0.1
m may results in a shift in the
structure and function of fens on
landscapes, resulting in a reduced
capacity to attenuate flows.”
April 2010 Shell Canada Limited 2-3
CR029