Pierre River Mine Project

Section 2.3
ERRATA SUPPLEMENTAL INFORMATION ERRATA
Table ERCB 27-1: Comparison of Thermal Energy Requirements
Operating Scenario
Thermal
Requirement
(GJ/m 3 )
Natural Gas
Consumed
(GJ/m 3 )
Feed Grade
(wt% Bitumen)
Process
Temperature
(°C)
Winter average-grade ore 2.44 0.86 10.9 40
Winter coarse high-grade ore 2.34 0.97 11.7 40
Summer low-grade ore 2.10 0.00 10.1 40
Summer average-grade ore 1.65 0.05 10.9 40
Summer high-grade ore 1.55 0.13 11.7 40
Volume 1, Section 10, Mining and Processing SIRs
Errata Section 10.1, page 10-154
The statement “Of the 21% mineral solids, about 60% are finer than 44μm.” was
incorrect.
Correction The correct value used for the Pierre River Mine is about 50% finer than 44 μm
which would result in a sands-to-fines ratio (SFR) of 1:1. This information is also
provided in the response to ERCB SIR 29a.
Volume 2, Section 23, Terrestrial SIRs
Errata Section 23.1, page 23-143
The Albian Sands Mine external tailings containment facility was incorrectly
referenced instead of Shell’s proposed external tailings disposal area (ETDA).
Correction The response to May 2009 Pierre River Mine, Supplemental Information,
Volume 2, SIR 461d should have referenced Shell’s Pierre River Mine ETDA.
The corrected response to the original question follows.
In the early stages of ETDA construction and use, mammals, amphibians and
reptiles are unlikely to interact with the Pierre River Mine external tailings
disposal area (ETDA) shoreline from surrounding undisturbed areas. Terrestrial
wildlife will be further discouraged from accessing the Pierre River Mine ETDA
because the dyke surrounding the ETDA will be about 7 m high before any
tailings are released.
As discussed in EIA, Volume 5, Section 7.5.3.2, residual impacts from activities
associated with the interaction of wildlife with project infrastructure, such as
mortality associated with the ETDA, after mitigation measures are applied (see
EIA, Volume 5, Section 7.1.3) are predicted to have a low environmental
consequence rating for yellow rail and black-throated green warbler, and a
negligible rating for all other key indicator resources (KIRs), such as Canadian
April 2010 Shell Canada Limited 2-11
CR029