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Pierre River Mine Project

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WATER AENV SIRS 15 – 43<br />

Section 12.1<br />

Response 23a Morton’s Evaporation model was used to determine Potential Evapotranspiration<br />

(PET). The input to Morton’s Evaporation model includes mean annual<br />

precipitation, monthly mean wind speed, monthly mean relative humidity or dew<br />

point temperature, and monthly mean solar radiation data recorded at the Fort<br />

McMurray Airport climate station from 1954 to 2006. The modified<br />

Table AENV 23-1 provides a list of specific input data used to estimate Potential<br />

Evapotranspiration (PET), areal actual evapotranspiration, Potential Lake<br />

Evaporation (PE), and Actual Lake Evaporation.<br />

Question No. 24<br />

Request Volume 2, SIR 292b, Page 21-45.<br />

Shell states that this question does not apply because it is not applicable to<br />

<strong>Pierre</strong> <strong>River</strong>. It is noted however that the same mapping techniques, symbology<br />

and EIA development systems have been used for both projects – Section 6.4.6.2,<br />

Figure 6.4-18, Page 6-317 shows that Question 292b is likely applicable, since<br />

the same mapping protocols appear to be in place for <strong>Pierre</strong> <strong>River</strong> as for<br />

Jackpine.<br />

24a Address SIR 292b in relation to <strong>Pierre</strong> <strong>River</strong> using Figure 6.4-18, Page 6-317 as<br />

a basis for reference, and address in relation to all proposed, reclaimed or<br />

created wetlands for <strong>Pierre</strong> <strong>River</strong>.<br />

Response 24a Figure AENV 24-1 presents a revised version of Figure 6.4-18.<br />

Request 24b Clarify what wetland ecosites are targeted in the littoral zone of pit lakes with<br />

examples of target plant and animals species.<br />

Response 24b Littoral zones will consist of marshes (MONG) and shallow open water wetlands.<br />

Plant and animal species typical of graminoid marsh (MONG) wetlands types are<br />

expected in the reclaimed marsh ecosite types. Emergent sedges, grasses, rushes,<br />

reeds, submerged and floating aquatics are among the plant families expected in<br />

the reclaimed marshes.<br />

The plant species anticipated include, but are not limited to:<br />

• Typha spp.<br />

• Carex spp.<br />

• Scirpus spp.<br />

• Polygonum spp.<br />

• Juncus spp.<br />

• Acorus calamus<br />

April 2010 Shell Canada Limited 12-27<br />

CR029

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