Pierre River Mine Project

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WATER AENV SIRS 15 – 43 Section 12.1 Table AENV 18-1: Calibrated Hydraulic Conductivity and Recharge Values in Regional Model (Revised) Material Glacial and glaciolacustrine deposits 1 (east of Athabasca) Glacial and glaciolacustrine deposits 1 (west of Athabasca) Horizontal Hydraulic Conductivity (m/s) Vertical Conductivity (m/s) Recharge (mm/yr) 5E-7 5E-9 16 5E-7 5E-9 25 Glacial and glaciolacustrine deposits 2 5E-7 5E-9 25 Ice contact deposits 1 (west of Jackpine Mine Expansion) 8E-6 8E-8 104 Ice contact deposits 2 (east of Jackpine Mine Expansion) 2E-5 2E-7 104 Outwash sand 5E-5 5E-6 104 Aeolian deposits (west of Pierre River Mine) 6E-5 6E-7 157 Buried channel aquifers 3E-4 3E-6 157 Clearwater and Grand Rapids formations 1 (Muskeg Mountain) 1E-11 1E-13 – Clearwater and Grand Rapids formations 2 (elsewhere) 5E-11 5E-13 – McMurray Formation Oil Sands 1 (Muskeg Mountain) 1E-11 1E-13 – McMurray Formation Oil Sands 2 (below Clearwater elsewhere) 1E-9 1E-10 – McMurray Formation Oil Sands 3 (areas of no Clearwater) 6E-9 6E-10 – McMurray Formation Oil Sands 4 (Athabasca River valley) 2E-7 2E-8 – McMurray Formation Basal Sands 1 (4 m thickness) 8E-5 8E-6 – Waterways Formation 1E-9 1E-11 – Prairie evaporite (salt and anhydrite) 1E-10 1E-11 – Methy 1 (lower portion and below Waterways/Clearwater) 5E-8 5E-13 – Methy 2 (upper portion in areas of no Waterways/Clearwater) 5E-7 5E-9 – Methy 3 (upper portion at Athabasca and Firebag River valleys) 5E-5 5E-7 – Sewataken fault Note: – = not defined. 5E-8 5E-8 – Request 18e If the recharge values mentioned in Table 1 and on page 27 are calibrated values, what were the initial estimated values of recharge assigned to different zones of the model? i. Within what range were the recharge values changed during calibration? Explain how the applicable range for the site is appropriate. April 2010 Shell Canada Limited 12-13 CR029
WATER AENV SIRS 15 – 43 ii. Explain how the calibrated values correspond to the recharge values estimated, based on the site specific hydrological conditions. Section 12.1 Response 18e i. The initial recharge values were based on published studies of groundwater recharge and on the experience of other groundwater models in the oil sands area (e.g., Shell, 1997, 2002; Imperial Oil 2005;). Van der Kamp and Hayashi (1998) indicate that recharge rates for regional aquifers confined by aquitards of till and clay, including the Dalmeny aquifer, the Zehner aquifer, and the Estevan Valley aquifer, are generally in the range of 5 to 40 mm/yr. Simpkins and Parkin (1993) estimated recharge rates in the range of 3 to 76 mm/yr through till of the Des Moines Lobe in Iowa. Sophocleous (1992) indicated that the recharge in the Great Bend Prairie of central Kansas ranged from about 0 to 177 mm/yr with a mean of 56 mm/yr. Walton (1985) reports recharge rates of about 160 to 260 mm/yr (20-25% of precipitation) for glacial drift composed largely of sand and gravel in west central Illinois. References As a general guidance, initial estimates of recharge were about 2 to 10% of precipitation (10 to 45 mm/yr) for fine-grained surficial deposits (e.g., tillcovered areas), and about 10 to 20% of precipitation (45 to 90 mm/yr) for sandy surficial deposits. The model was then calibrated by adjusting both the hydraulic conductivity of the different geological materials and the recharge rates in the different areas of the model so that observed water levels, piezometric levels and groundwater discharge rates were adequately reproduced. The model calibration indicated that higher recharge rates were required in select areas of high permeability characterized by aeolian deposits and near surface sand channels (e.g., Kearl Channel). Imperial Oil (Imperial Oil Resources Ventures Limited). 2005. Kearl Oil Sands Project - Mine Development. Submitted to Alberta Energy and Utilities Board and Alberta Environment. Calgary, AB. Submitted July 2005. Shell (Shell Canada Limited). 1997. Application for the Approval of Muskeg River Mine Project. Volumes 1 to 3. Submitted to Alberta Energy and Utilities Board and Alberta Environment. Calgary, AB. Submitted December 1997. Shell (Shell Canada Limited). 2002. Application for the Approval of Jackpine Mine –Phase 1. Submitted to Alberta Energy and Utilities Board and Alberta Environment. Calgary, AB. Submitted May 2002. Simpkins, W. W. and T. B. Parkin. 1993. Hydrogeology and redox geochemistry of CH4 in a Late Wisconsinan till and loess sequence in central Iowa. Water Resources Research 29:3643-57. Sophocleous, M. 1992. Groundwater recharge estimation and regionalization: the Great Bend Prairie of central Kansas and its recharge statistics. J. Hydrology Vol. 137, pp. 113-140. 12-14 Shell Canada Limited April 2010 CR029
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Application for Approval of the Pie
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PIERRE RIVER MINE SUPPLEMENTAL INFO
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CONTENTS LIST OF ILLUSTRATIONS Tabl
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INTRODUCTION OVERVIEW Table 1-1: Gu
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INTRODUCTION NAVIGABLE WATERS Secti
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INTRODUCTION NAVIGABLE WATERS Secti
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Section 2.2 ERRATA EIA, EIA UPDATE
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Section 2.2 ERRATA EIA, EIA UPDATE
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Section 2.3 ERRATA SUPPLEMENTAL INF
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Section 2.3 ERRATA SUPPLEMENTAL INF
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MINING AND PROCESSING ERCB SIRS 3 -
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AIR ERCB SIRS 40 - 45 Request 41b B
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AIR ERCB SIRS 40 - 45 Table ERCB 41
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AIR ERCB SIRS 40 - 45 Community Tab
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AIR ERCB SIRS 40 - 45 Local Study A
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AIR ERCB SIRS 40 - 45 Section 6.1 F
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WATER ERCB SIRS 46 - 79 Section 7.1
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WATER ERCB SIRS 46 - 79 References
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TERRESTRIAL AENV SIRS 44 - 78 Refer
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TERRESTRIAL AENV SIRS 44 - 78 Revis
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EPEA APPROVALS AENV SIRS 90 - 96 Qu
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EPEA APPROVALS AENV SIRS 90 - 96 Se
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GLOSSARY CEAA The abbreviation for
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GLOSSARY ESR The abbreviation for e
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GLOSSARY landform The configuration
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GLOSSARY OSDG The abbreviation for
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GLOSSARY SEWG The abbreviation for
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Pierre River Mine Project

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