· 2012-10-02 · APPENDIX C - ENGINEERING DESIGN ... TABLE D.4: BASELINE FOR MINE AND TAILINGS STRUCTURES JANUARY ... Directive

smithj

Typewritten Text

<original signed by>

smithj

Typewritten Text

smithj

Typewritten Text

<phone number removed>

smithj

Typewritten Text

smithj

Typewritten Text

Shell Albian Sands - Jackpine Mine

Updated September 2009

ERCB Directive 074 - Tailings Management Plan

Submitted to ERCB – December 2010

By Shell Canada Energy on behalf of Shell Canada Limited

ERCB Directive 074 JPM Tailings Management Plan

TABLE OF CONTENTS

Shell Canada Energy on behalf of Shell Canada Limited

1. INTRODUCTION ............................................................................................... 1 1.1. Overview – Tailings Management Plan ....................................................... 2

2. TAILINGS STRATEGY ......................................................................................... 5 2.1. External Tailings Disposal Area .................................................................. 5 2.2. TT Drying Areas ........................................................................................ 9 2.3. In Pit Tailings Disposal ............................................................................. 10

3. OPERATING PLANS ........................................................................................ 11 3.1. Operation of DDA1 ................................................................................. 11

3.1.1. Abnormal Thickener Operational Contingency Plan ....................... 12 3.2. Operation of DDA2 ................................................................................. 12 3.3. Alternatives for DDA1 Management ......................................................... 12 3.4. NST Operation ....................................................................................... 13 3.5. Management of Centrifuge Cake .............................................................. 15

4. TIMELINES FOR CONSTRUCTION, OPERATION AND CLOSURE ........................ 16 4.1. DDA1 .................................................................................................... 16 4.2. DDA2 .................................................................................................... 17 4.3. NST Disposal Areas ................................................................................ 17

5. GEOTECHNICAL STRENGTH PREMISES FOR JPM THICKENED TAILINGS ........................................................................................... 18

5.1. DDA1 Deposition and Strength Gain ........................................................ 18 5.2. DDA2 Deposition and Strength Gain ........................................................ 18 5.3. Basis for Strength Gain Predictions ........................................................... 18 5.4. Strength and Storage Optimization ........................................................... 22

6. D074 FINES SEQUESTRATION AND COMPLIANCE .......................................... 23 7. CONCORDANCE TABLE IN SUPPORT OF ERCB D074 APPENDIX E ................... 25 APPENDIX A - MINE AND TAILINGS SEQUENCES ...................................................... 1 APPENDIX B - CLOSURE OF DEDICATED DISPOSAL AREAS ...................................... 29 APPENDIX C - ENGINEERING DESIGN .................................................................... 37 APPENDIX D - MINE AND WASTE MATERIAL BALANCE ........................................... 39 APPENDIX E - TAILINGS PROCESS FLOW DIAGRAMS .............................................. 53 APPENDIX F - ETF 3D GEOMETRICAL MODEL ........................................................... 58


TABLE OF CONTENTS


FIGURE 1.1: PROJECT LOCATION MAP .................................................................... 4 FIGURE 2.1: LAYOUT OF DEDICATED DISPOSAL AREA PRIOR TO

MERGING OF SC1 AND SC2 ............................................................... 7 FIGURE 2.2: EXTERNAL TAILINGS DISPOSAL AREA CROSS SECTION ......................... 8 FIGURE 2.3: TT DRYING AREA LOCATION MAP ........................................................ 9 FIGURE 3.1: MECHANICAL AMENDMENT OF MFT DRYING AT MUSKEG

RIVER MINE ....................................................................................... 14 FIGURE 5.1: TT IMMEDIATELY AFTER DEPOSITION .................................................. 20 FIGURE 5.2: TT CONSOLIDATION AND DEWATERING IN PROGRESS ..................... 20 FIGURE 5.3: VAIN SHEAR MEASUREMENT OF TT DEPOSIT ...................................... 21 FIGURE 5.4: SURFACE DESSICATION OF TT DEPOSIT .............................................. 21 FIGURE A.1: MINING STATUS 2010 ......................................................................... 3 FIGURE A.2: MINING STATUS 2011 ......................................................................... 5 FIGURE A.3: MINING STATUS 2012 ......................................................................... 6 FIGURE A.4: MINING STATUS 2013 ......................................................................... 7 FIGURE A.5: MINING STATUS 2014 ......................................................................... 9 FIGURE A.6: MINING STATUS 2015 ....................................................................... 10 FIGURE A.7: MINING STATUS 2016 ....................................................................... 11 FIGURE A.8: MINING STATUS 2017 ....................................................................... 12 FIGURE A.9: MINING STATUS 2018 ....................................................................... 13 FIGURE A.10: MINING STATUS 2019 ..................................................................... 14 FIGURE A.11: MINING STATUS 2020 TO 2024 ....................................................... 16 FIGURE A.12: MINING STATUS 2025 TO 2029 ....................................................... 18 FIGURE A.13: MINING STATUS 2030 TO 2034 ....................................................... 20 FIGURE A.14: MINING STATUS 2035 TO 2039 ....................................................... 22 FIGURE A.15: MINING STATUS 2040 TO 2044 ....................................................... 24 FIGURE A.16: MINING STATUS 2045 TO 2049 ....................................................... 26 FIGURE A.17: MINING STATUS 2050 TO 2055 ....................................................... 27 FIGURE B.1: DDA1 CLOSURE LANDFORM DESIGN AND DRAINAGE

FEATURES .......................................................................................... 31 FIGURE B.2: CROSS SECTION A-A1 OF DDA1 DRAINAGE CHANNELS ................... 32 FIGURE B.3: CROSS SECTION B-B1 OF DDA1 DRAINAGE CHANNELS .................... 33


TABLE OF CONTENTS


FIGURE B.4: CROSS SECTION C-C1 OF DDA1 DRAINAGE SYSTEM AT OUTLET TO ADJACENT SAND CELL .................................................... 34

FIGURE B.5: CROSS SECTION D-D1 OF DDA1 TOP SURFACE TO DYKE WALL JUNCTION ............................................................................... 35

FIGURE B.6: CROSS SECTION E-E1 OF DDA1 TOP SURFACE TO DYKE WALL JUNCTION ............................................................................... 36

FIGURE C.1: DYKE DESIGN .................................................................................... 38 FIGURE D.1: SITE WIDE TAILINGS FLUID INVENTORY .............................................. 49 FIGURE D.2: ETDA TT, DDA1 TAILINGS STORAGE BY ELEVATION ............................ 50 FIGURE D.3: ETDA TT, DDA1 TAILINGS STORAGE CAPACITY .................................. 51 FIGURE E.1: ETDA PROCESS FLOW DIAGRAM ........................................................ 53 FIGURE E.2: PROCESS FLOW DIAGRAM ................................................................. 54 FIGURE E.3: DDA DEVELOPMENT SCHEDULE .......................................................... 55 FIGURE E.4: DDA1 & DDA2 OPERATING PHILOSOPHY ........................................... 56 FIGURE E.5: DDA AVAILABILITIES AND MATERIAL TYPES ......................................... 57 FIGURE F.1: DECEMBER 2012 ................................................................................ 58


TABLE OF CONTENTS


TABLE 2.1: SUMMARY OF CHANGES TO FINAL ETDA DESIGN ................................. 6 TABLE 3.5: CENTRIFUGE DEVELOPMENT SCHEDULE ............................................... 15 TABLE 4.1: DDA1 TIMELINE FOR CONSTRUCTION, OPERATION AND

CLOSURE ........................................................................................... 16 TABLE 4.2: DDA2 TIMELINE FOR CONSTRUCTION, OPERATION AND

CLOSURE ........................................................................................... 17 TABLE 5.1: THIN LIFT DEPOSITION OF JPM TT ......................................................... 19 TABLE 5.2: VANE STRENGTH MEASUREMENTS OF JPM TT DEPOSIT ........................ 22 TABLE 6.1: JPM FINES BALANCE ............................................................................ 24 TABLE D.1: MINEABLE OILSANDS RESERVES AND PRODUCTION ............................ 39 TABLE D.2: MINE WASTE MATERIAL BALANCE, DUMPS .......................................... 40 TABLE D.3: MINE WASTE MATERIAL BALANCE, DYKES ........................................... 41 TABLE D.4: BASELINE FOR MINE AND TAILINGS STRUCTURES JANUARY

2011 ................................................................................................. 42 TABLE D.5: TAILINGS ACTIVITIES SCHEDULE ........................................................... 43 TABLE D.6: TAILINGS TONNAGE BY PRODUCT ....................................................... 44 TABLE D.7: TAILINGS MATERIAL BALANCE (TABLE 1 OF 3) ...................................... 45 TABLE D.8: TAILINGS MATERIAL BALANCE (TABLE 2 OF 3) ...................................... 46 TABLE D.9: TAILINGS MATERIAL BALANCE (TABLE 3 OF 3) ...................................... 47 TABLE D.10: MFT INVENTORY SCHEDULE ............................................................... 48 TABLE D.11: TAILINGS PLANNING PARAMETERS .................................................... 52


- 1 -


1. INTRODUCTION

Jackpine Mine (JPM) is located about 70km north of Ft. McMurray, Alberta, and about 500km northeast of Edmonton. Shell Albian Sands (Shell) operates the mine on behalf of the Athabasca Oil Sands Project (AOSP), a joint venture partnership between Shell Canada Energy, Chevron Canada and Marathon Oil Sands L.P. The nearest community is Fort McKay, located about 5km to the west. See Figure 1.1 Project Location Map.

Ore Preparation and Primary Extraction commissioning activities were completed at JPM in Q2-2010 with ore production starting in Q3-2010. Bitumen production started on August 26th, 2010.

The following report outlines Shell’s Tailings Management Plan and strategies proposed to comply with the Energy Resources Conservation Board (ERCB) Directive 074 requirements. The Tailings Management Plan described in this report is based on the mining scheme submitted pursuant to ERCB’s Approval No. 9756 and includes:

annual average single train bitumen production of 100,000 Bbls/day versus an approved capacity of 200,000 Bbls/day;

bitumen froth produced at the JPM transferred for processing through the expanded Muskeg River Mine (MRM) froth treatment facilities. The resulting fines will be managed by MRM tailings facilities as per ERCB’s Approval 8512D.


- 2 -


1.1. Overview – Tailings Management Plan

In developing it’s Tailings Management Strategy, Shell has considered all aspects of Directive 074 on the understanding that; “The ERCB recognizes that fluid tailings management is developing and that operators may need flexibility to apply technologies and techniques that best suit the circumstances of particular projects” and that “The ERCB will consider submissions of operators and will determine project-specific requirements related to the directive” (ERCB Directive 074: Tailings Performance Criteria and Requirements for Oil Sands Mining Schemes (February 2009), page 3).

The JPM Tailings Management Plan has been designed to meet the requirements of Directive 074, however Shell recognizes that the development and implementation of new technologies at a commercial scale involves a degree of uncertainty that may impact the timing and performance of the proposed fine tailings management plans.

Initially the tailings at JPM will be managed through an External Tailings Disposal Area (ETDA) and a Thickened Tailings (TT) Drying Area. In 2027, mining activities will be sufficiently advanced to allow for in-pit tailings disposal using Non–Segregated Tailings (NST) technology.

The ETDA will be the primary facility for a Dedicated Disposal Area (DDA) where TT will be deposited and designated DDA1. To compliment the start up and initial operation of DDA1, Shell has initiated a commercial scale trial of a TT Drying Area which will be developed as a second DDA and designated DDA2.

Shell recognizes that during early development of a TT deposit in DDA1 and DDA2, there will be shortfalls in meeting the requirements of Directive 074’s percentage fine tailings sequestration. Shell is proposing to use a centrifuge process to be commissioned in Q2 2014 which will produce a reduced water content paste that will be deposited in DDA1 to supplement the degree of fines sequestration.

As mining activities advance, JPM will transition from an external disposal method for tailings to in-pit disposal through the introduction of NST technology. Based on a nominal production rate of 100,000 Bbls/day bitumen, NST is expected to come on line at JPM in 2027. Should production levels increase in the future this date may be advanced.


- 3 -


Shell’s Tailings Management Plan uses a portfolio of fines management techniques including:

Permanent TT deposits – DDA1,

Temporary TT deposits – The material deposited in DDA2 will be re-handled and placed in dumps or in-pit waste storage,

Cell Sand Capture – Fines are sequestered in engineered dykes and deposits, and

NST – Non Segregating Technology


- 4 -


Figure 1.1: Project Location Map


- 5 -


2. TAILINGS STRATEGY

2.1. External Tailings Disposal Area

Shell’s strategy for external tailings disposal relies on JPM’s separate stream tailings

technology (refer to Appendix E,

Figure E.1: ETDA Process Flow Diagram on page 53). This technology allows tailings to be separated into the following streams:

Coarse Sand Tails (CST) from the cyclone underflow

Thickened Tails (TT) from the thickener underflow

Whole Tailings (WT) when production upsets occur in the tailings circuit

Thin Fine Tails (TFT) produced when fines segregate during the deposition of tailings streams. TFT consolidates to form Mature Fine Tails (MFT) after 12 to 18 months

An external tailings disposal area (ETDA) is being constructed at JPM with three separate cells, the westernmost of which is DDA1 (Figure 2.1, page 7). The other two Sand Cells have been designated as SC1 and SC2 and are used for the storage of deposited sand, MFT and water inventory. Segmenting of the structure allows the MFT and water inventory to be contained with dykes constructed using an upstream cell construction. DDA1 is contained with centreline constructed containment dykes (Figure 2.2, page 87).

The JPM - Phase 1 approved ETDA plan showed the TT containment dykes (now referred to as DDA1) at an ultimate elevation of 373 masl, and the MFT and water inventory reaching a final elevation of 371 masl.

Subsequent designs and tailings staging studies have modified the JPM ETDA. The ETDA design submitted for AENV Dam Safety approval in July 2007 segmented the deposited sand and fluid tailings area into SC1 and SC2 and raised the final elevation of the entire ETDA to 381 masl. The deposited sand and fluid tailings area was segmented in order to defer diversion of Khahago Creek. SC1 is developed west of Khahago Creek, and SC2 borders the east limit of OSL T13 and the previously proposed Khahago Surge Facility.

The JPM Expansion Application (submitted 2007) proposes elimination of the Khahago surge facility and provides a redesign of the east limit of the ETDA to use the additional space. However, this design change has not been integrated into the


- 6 -


plans described in this submission, as regulatory and financial approvals for this expansion have not yet been obtained.

For the work carried out in this 2010 ERCB Directive 074 Submission, the final ETDA design is based on the Dam Safety approval of July 2007.

Table 2.1: Summary of Changes to Final ETDA Design

JPM Phase I 2007 Dam Safety

JPME JPM D074 Submission

masl (m) 373 381 381 381

Khahago Surge Facility Yes Yes No Yes

Tailings Locations

TT Pond, Main Sand Area

TT Pond, Two Sand Areas

TT Pond, Two Sand Areas

TT DDA1, Two Sand Areas

Sand Areas No Segmentation Segmented into Two Sand Cells

Segmented into Two Sand Cells

Segmented into Two Sand Cells

The Tailings Management Plan is based on the Sand Cells rising to a final design elevation of 381 masl by 2027. SC2 will be filled at a rate where containment dykes reach the same elevation as SC1 allowing the merging of the two ponds and eliminating the need for a cross dyke between the ponds.

When the Sand Cells reach design elevation in 2027 the DDA1 will be approximately 20m below design elevation. The lagging DDA1 elevation is a result of reduced TT production due to the reduction in predicted ore body fines.

At the end of operation, the remaining unfilled TT design elevations will be addressed by placing overburden material on the DDA1 (refer to APPENDIX B - Closure of Dedicated Disposal Areas) and has not been considered for alternative tailings storage in this plan to:

preserve the integrity of the DDA, and

maintain contingency TT space for increased TT quantities due to potential changes to plan parameters or from future expansions.


- 7 -


Figure 2.1: Layout of Dedicated Disposal Area Prior to Merging of SC1 and SC2


- 8 -


Figure 2.2: External Tailings Disposal Area Cross Section


- 9 -


2.2. TT Drying Areas

The JPM TT Drying Area (DDA2) is located north of the mining pit within the approved MSL and future mining operation. It is bounded by the Canterra Road to the south and east, and by Jackpine Lake access roads to the north and west (refer to Figure 2.3).

DDA2 will dry excess TT that cannot be managed within DDA1 and will be operated in conjunction with DDA1 to capture and sequester fines as required by Directive 074. DDA2 is a temporary fines storage solution, and will be used only until NST comes on line. TT deposited in DDA2 will be re-handled and placed in dumps or in-pit waste storage.

DDA2 is designed with two operational areas; Winter Operation and Summer Operations. Refer to Section 3.2 for details.

Figure 2.3: TT Drying Area Location Map


- 10 -


2.3. In Pit Tailings Disposal

Non-Segregating Tailings (NST) has been selected as the technology for in-pit tailings operation starting in 2027. NST will be produced and deposited in cells contained by a combination of engineered dyke structures within the final pit walls.

NST is produced by mixing TT, coarse dewatered sand, and MFT from a fluid tailings cell with coagulant to prevent segregation of the mixture. The NST product is pumped at a high solids density and deposited sub-aerially to prevent segregation during deposition. Refer to Appendix E, Figure E.2 for the NST process flow detail.


- 11 -


3. OPERATING PLANS

3.1. Operation of DDA1

DDA1 is the primary location for the sequestration of fines in support of Directive 074 requirements until 2027. TT will be deposited into DDA1 through spigots in the east, north, and west perimeters of DDA1. Each location will be cycled between:

a deposition period,

a dewatering and evaporation period, and

a mechanical amendment period to enhance drying. Machinery such as amphibious rollers, farm disking equipment and modified track equipment are currently under evaluation. The mechanical amendment will be performed after deposition and dewatering.

DDA1 is presently being prepared with coarse sand tailings (CST) deposits to create a slope for the deposition of the TT subaerially. The sloped deposits will direct released water from the deposit to a transfer sump, pumping run-off from DDA1 to SC1. Run-off material from DDA1 will be collected and pumped to SC1 to create an MFT inventory that will be used in the centrifuge process. Densified MFT from the centrifuge will be deposited into DDA1 and managed similar to the TT product. The densified MFT will increase fines sequestration quantities exceeding D074 annual requirements and supplementing previous shortfalls. The ability to exceed the annual requirements will allow JPM to meet the total cumulative requirements for fines sequestration by 2019 (refer to Section 6, Table 6.1).

Typically, TT will be deposited in DDA1 from March to October. During the winter months of November to February, TT will be diverted to the TT Drying Area (DDA2) allowing mechanical amendments to DDA1 during the winter period to enhance dewatering and strength gain (refer to Section 3.3 and Appendix E, Figure E.4).

Initially in 2011, TT will be deposited in DDA1 on a Month On / Month Off basis. The Month On period will provide the opportunity to create foundation deposits and allow for the evaluation of the TT performance in DDA1. During the Month Off period, TT and CST or whole tailings (WT) will be diverted to SC1. The type of tailings will be determined by dyke construction material requirements. WT is typically used for upstream beaching while CST is primarily used for cell construction.

In the event that DDA1 cannot handle the entire inventory of TT during the March to October period, TT will be diverted to DDA2 summer operations.


- 12 -


3.1.1. Abnormal Thickener Operational Contingency Plan

In the event that the thickeners experience an abnormal operating period, the plant will revert to producing whole tails rather than separate streams of CST and TT. The WT will be discharged into SC1 and utilized for dyke construction or placed as upstream deposits to facilitate future dyke rises. The fines that were planned to be captured in a DDA will be partially captured in the dyke or deposits with some of the fines forming MFT. The lost fines from the sequestration balance will be made up with centrifugation from Q2 2014 to 2019. TT that is discharged as WT due to abnormal thickener operation will be tracked and monitored for reporting.

3.2. Operation of DDA2

DDA2 will operate over the winter months from the start of November to the end of February. A period of dewatering and drying will take place in the spring followed by mechanical amending of DDA2 during the summer months using machinery such as amphibious rollers, farm disking equipment and modified track equipment (see Figure 3.1). The dried material in DDA2 will be re-handled in the fall and placed in dumps, dykes, or in pit cells. Removing the TT from DDA2 will minimize land disturbance and permit the drying area to be used again.

Transferring the TT deposition from DDA1 to DDA2 over the winter months will minimize the build up of thick soft layers of TT in DDA1. The build-up of soft layers could potentially inhibit the summer cycle operation of placement, dewatering and desiccation due to evaporation.

DDA2 has been located in an area of the mine that can be expanded if operations require additional space.

3.3. Alternatives for DDA1 Management

Several opportunities to enhance the dewatering and strength gain of DDA1 are under investigation, two of which are described below.

The first opportunity is the ability to place a layer of sand over deposited TT during winter months when TT deposition is cycled to DDA2. This will create a layering effect of low permeability TT between high permeability coarse sand. The coarse sand will act as a drainage layer allowing water to be expressed from the TT. The coarse sand will also assist in consolidation by weight loading the TT. The techniques required to place a sand layer over the TT without adversely affecting the deposit are under development.


- 13 -


The second opportunity is to create sand channels within DDA1. The sand channels would enhance the drainage of the TT deposit decreasing the time required to consolidate and gain strength. As with sand layers, the techniques required to produce sand channels within the TT without adversely affecting the deposit are under review.

3.4. NST Operation

In-pit NST operation utilizes two active cells:

An NST Cell for active deposition of NST product, and

A Clarification Cell (Fluid Cell 1) to receive Thin Fine Tails (TFT) runoff which is pumped continuously from the location of active NST deposition. The Fluid Cell allows TFT to consolidate to MFT from which it can be harvested for recombination back into the NST stream.

Once the NST cell is nominally filled 5-10m below the original topography, it will be capped by hydraulically placing CST (beaching) over the NST. This will facilitate water expression from the NST deposit and accelerate establishment of a trafficable surface.

NST capped with CST will be deposited in three in-pit cells over the life of mine.

Cell 1 receives NST from 2027 to 2034 and is CST capped in 2035 and 2036,

Cell 2 is segmented with an intermediate (overtopping) dyke to allow final clearing of the cell. Cell 2 is filled with NST from 2036 to 2042. The remainder of Cell 2 is filled with NST from 2042 to 2049, and the whole area is CST capped in 2049 and 2050, and

Cell 3 receives NST from 2050 to 2054 and is CST capped in 2054 and 2055.

During CST capping, NST production will be suspended and JPM will revert to pumping TT to DDA1. All TFT are pumped to Fluid Cell 1.


- 14 -

Figure 3.1: Mechanical Amendment of MFT drying at Muskeg River Mine

This is typical of the type of equipment being evaluated to mechanically amend the DDA2 TT drying at JPM.



- 15 -


3.5. Management of Centrifuge Cake

MFT Centrifugation is scheduled for commissioning and startup (C&SU) June 2014. The centrifuge cake will be managed within DDA1. The material will be placed and spread for drying similar to the TT deposited within DDA1. Between placement and dewatering of the cake, the deposit will be mechanically amended using equipment such as amphibious rollers, modified tracked equipment and farm disking equipment.

In the event that DDA1 cannot handle the additional volume of material required to meet the Directive requirements, the centrifuge cake will be diverted to DDA2 and managed in the summer operations. It will also be mechanically amended in DDA2 until it has reached sufficient strength to be removed and placed in dumps; or in-pit disposal locations. See Appendix E, Figure E.4 for operating philosophy.

Table 3.5 shows the development schedule for the implementation of centrifugation or similar MFT densification equipment at JPM.

Table 3.5: Centrifuge Development Schedule

Key Milestone Start Finish

Technical Development Jul-10 Aug-10

Identify / Asses Phase Apr-10 Dec-10

Select Phase Jan-11 Aug-11

Define Phase Aug-11 May-12

Execute Phase May-12 Jan-14

Construction Dec-12 Jan-14

Pre-Commissiong / Commissioning

Feb-14 Jun-14

Ready for Start-up Jul-14


- 16 -


4. TIMELINES FOR CONSTRUCTION, OPERATION AND CLOSURE

4.1. DDA1

Table 4.1 provides a summary of the timelines established for the construction, operation and closure of DDA1.

Table 4.1: DDA1 Timeline for Construction, Operation and Closure

Start Date End Date

Construction

Preparation of starter dyke 2008 2010

Preparation of External Dyke Walls (centerline) 2015 2029

Preparation of Upstream Dyke 2010 2011

Operation

TT deposition – initial filling period (1) 2010 2027

TT deposition – in‐pit tailings CST capping activities (2) 2035 2036

TT deposition – in‐pit tailings CST capping activities 2049 2050

TT deposition – in‐pit tailings CST capping activities 2054 2055

TFT transfer to SC1 2010 2055

Closure, Capping and Final Landform Design (3)

Completion of TT deposition n/a 2055

Trafficable tailings surface 2055 2057

Overburden capping and drainage contouring 2057 2059

Reclamation coversoil placement 2060 2061

Nurse crop coverage and cap settlement 2060 2062

Revegetation 2062 2063

Monitoring 2063 TBD

Notes: (1) TT deposition is from March to October each year. (2) NST in pit tailings operation requires a period where a cell is capped with CST. During these

CST capping activities, TT will divert to DDA1 as stated in Section 3.4. (3) Full details of Closure, Capping and Final Landform Design are provided below APPENDIX B ‐

Closure of Dedicated Disposal Areas.


- 17 -


4.2. DDA2

Table 4.2 provides a timeline summary for the winter and summer deposition areas in DDA2.

Table 4.2: DDA2 Timeline for Construction, Operation and Closure

Start Date End Date

Construction

Preparation of Phase 1 – Winter Deposition Area Nov 2010 Mar 2011

TT Piping to Phase 1 – Winter Deposition Area Mar 2011 Oct 2011

Preparation of Phase 2 – Summer Deposition Area Nov 2011 Mar 2012

TT Piping to Phase 2 – Summer Deposition Area Mar 2012 May 2012

Operation

Deposition of TT into Phase 1 – Winter Deposition (1) Nov 2011 Feb 2027

Deposition of TT into Phase 2 – Summer Deposition (If required) (2) Jun 2012 Oct 2026

Run‐off water returned to SC1 Nov 2011 Oct 2026

Closure, Capping and Final Landform Design(3)

Completion of TT deposition n/a 2027

Begin mining TT Drying Areas (DDA2)(4) 2020 n/a

Notes:

(1) Winter deposition occurs from November to February

(2) Summer deposition occurs from March to October and will occur only if required

(3) The mine will advance through the TT Drying area eliminating the requirement for the closure and reclamation planning of this particular feature refers to APPENDIX B ‐ Closure of Dedicated Disposal Areas.

(4) DDA2 will be relocated in advance of the mine operations and will continue operating until 2027. This location will be determined within the 2 year period for DDA submissions.

4.3. NST Disposal Areas

The timelines for the NST Cell DDA submissions will be submitted to the ERCB at a later date, within the timeframes identified in Section 4.2 of Directive 074.


- 18 -


5. GEOTECHNICAL STRENGTH PREMISES FOR JPM THICKENED TAILINGS

An undrained shear strength of 5kPa will be achieved within 1 year for TT placed in DDA1 and DDA2.

5.1. DDA1 Deposition and Strength Gain

Thickened Tailings will be placed in DDA1 during March to October. Maximum slurry lift thickness will be managed to no more than 0.5m per lift and no more than three 0.5m lifts are scheduled for placement in DDA1 between March and October. Each 0.5m thick lift (45wt% solids concentration basis) will be placed within a one-month window followed by one month of drying and one-month allowance for mechanical amendment to enhance evaporation and allow the deposit strength to reach 5kPa undrained shear strength. Therefore, the average time for the deposit to achieve 5kPa undrained shear strength will be approximately three months for each layer placed.

5.2. DDA2 Deposition and Strength Gain

Thickened Tailings will be placed in DDA2 during the interval from November to February. Maximum slurry lift thickness will be managed to no more than 1m during the winter deposition period and will not be worked during this time. The thawing, drying, mechanical amendment and excavation of the material will occur in DDA2 from March to October. The DDA area will have the previous year’s material removed before commencement of the next year’s winter deposition sequence. An undrained shear strength of 5 kPa will be achieved prior to excavation and removal of this material.

In instances where DDA2 receives TT during summer months, the same depositional tactics will be employed and the material will achieve an undrained shear strength of 5kPa before being rehandled to the final disposition site.

5.3. Basis for Strength Gain Predictions

Shell undertook significant testing of JPM Thickened Tailings at the MRM Tailings Test Facility in 2009. ‘On spec’ JPM thickened tailings was produced and deposited in thin lift deposition mode in a 5m deep cell. The performance of the TT placed in the thin lift deposition mode has been used as the basis for the Directive 074 submission for DDA1 and DDA2.

The test cell was filled with approximately 1.2m of JPM thickened tailings slurry in November 2009. Table 5.1 shows the characteristics of the TT deposit. The deposit


- 19 -


was then passively monitored over the winter and a detailed sampling program was undertaken in September 2010. Table 5.2 contains the results of the sampling campaign. The sampling program found that the material had undrained shear strengths of between 9.6 and 16.8 kPa. Based on this performance and recognizing that this deposit was not mechanically amended after placement, Shell is confident that the summer and winter deposition plans for DDA1 and DDA2 will be successful in delivering strength that meets Directive 074 requirements. Figures 5.1 to 5.4 show the TT deposit from initial placement to surface desiccation.

Table 5.1: THIN LIFT DEPOSITION OF JPM TT

Start Date End Date Thickness (m) Soilds by Weight(%)

SFR74 (measured)

SFR44 (calculated)

1Nov. 2, 2009

11:05Nov. 4, 2009

16:45 ~0.9 35% 0.5 0.8

2Nov. 18, 2009

23:15Nov. 19, 2009

16:00 ~0.3 44% 0.6 1

Layer #

As Placed Deposit


- 20 -


Figure 5.1: TT Immediately After Deposition

Figure 5.2: TT Consolidation and Dewatering in Progress


- 21 -


Figure 5.3: Vain Shear Measurement of TT Deposit

Figure 5.4: Surface Dessication of TT Deposit


- 22 -


Table 5.2: Vane Strength Measurements of JPM TT Deposit

Measurement Date Depth(cm)

Strength(kPa)

1 Sept. 2010 17 9.6 ~ 11.2

2 Sept. 2010 35 16.2 ~ 16.8

5.4. Strength and Storage Optimization

In all instances, operations will give priority to achieving the targeted undrained shear strength by the end of the TT drying interval over total tonnage of fines delivered in that interval. Operating practices will be adjusted and optimized to achieve maximum efficiency in achieving both tonnage and strength on the smallest practical footprint.


- 23 -


6. D074 FINES SEQUESTRATION AND COMPLIANCE

Table 6.1 shows the distribution of fines within the DDA structures at JPM. While alternatives are being developed to supplement the fines sequestered in DDA1 and DDA2 during 2011-2014, JPM falls short of D074’s annual requirements for fines sequestration. To compensate for this shortfall, excess fines will be sequestered via centrifugation of MFT starting in 2014. This supplemental sequestration will ensure that this fines deficit will be eliminated by 2019. JPM will continue to exceed the annual sequestration requirements post 2019 and throughout NST operation.


- 24 -

Table 6.1: JPM Fines Balance

(DDA2)

TT deposit

(Mt)

Enhanced Drainage

Layer (Mt)

Centrifuge(Mt)

TT Deposit

(Mt)

NST(Mt)

CST Capping

Fines(Mt)

2010 (1) 1.1 0.2 0.3 0.0 0.0 0.0 0.0 0.5 43% 0.5 43% 0.2 20% 216% 216% 0.1 0.0 0.1 0.4 0.0

2011 (2) 4.5 0.3 0.0 0.0 0.1 0.0 0.0 0.4 9% 0.9 16% 1.1 25% 38% 67% 0.5 0.0 1.9 1.7 0.0

2012 (3) 4.9 0.7 0.0 0.0 0.4 0.0 0.0 1.1 22% 2.0 19% 1.9 40% 55% 60% 0.6 0.0 1.4 1.8 0.0

2013 4.2 0.6 0.0 0.0 0.3 0.0 0.0 0.9 22% 2.9 20% 2.1 50% 44% 54% 0.5 0.0 1.2 1.5 0.0

2014 5.4 0.6 0.0 1.3 0.3 0.0 0.0 2.3 43% 5.2 26% 2.7 50% 85% 64% 0.6 1.3 1.7 2.1 0.0

2015 4.6 0.5 0.0 1.7 0.3 0.0 0.0 2.5 55% 7.7 31% 2.3 50% 110% 75% 0.5 1.8 1.5 1.7 0.0

2016 3.5 0.5 0.0 1.7 0.3 0.0 0.0 2.5 72% 10.2 36% 1.7 50% 144% 85% 0.4 1.8 1.0 1.3 0.0

2017 3.9 0.6 0.0 1.7 0.3 0.0 0.0 2.6 67% 12.8 40% 2.0 50% 133% 91% 0.5 1.8 1.2 1.4 0.0

2018 3.7 0.5 0.0 1.7 0.3 0.0 0.0 2.5 69% 15.3 43% 1.8 50% 137% 97% 0.4 1.8 1.1 1.4 0.0

2019 4.0 0.5 0.0 1.7 0.3 0.0 0.0 2.6 64% 17.9 45% 2.0 50% 129% 100% 0.5 1.8 1.3 1.4 0.0

2020-2024 22.9 3.3 0.0 6.4 1.7 0.0 0.0 11.4 50% 29.3 47% 11.4 50% 100% 100% 2.7 6.4 6.8 8.3 0.0

2025-2029 25.5 1.9 0.0 3.8 1.1 10.5 0.0 17.3 68% 46.6 53% 12.7 50% 136% 111% 3.1 7.2 3.9 8.4 0.0

2030-2034 20.3 0.0 0.0 0.0 0.0 22.1 0.0 22.1 109% 68.7 63% 10.2 50% 217% 132% 2.4 11.4 0.0 7.2 0.0

2035-2039 23.1 1.0 0.0 0.0 0.0 17.9 1.3 20.2 87% 88.9 68% 11.6 50% 175% 139% 2.8 7.4 0.0 7.5 0.0

2040-2044 26.7 0.0 0.0 0.0 0.0 21.8 0.0 21.8 82% 110.7 70% 13.4 50% 163% 144% 3.2 5.3 0.0 7.1 0.0

2045-2049 27.4 0.0 0.0 0.0 0.0 22.8 0.0 22.8 83% 133.5 72% 13.7 50% 166% 147% 3.3 6.0 0.0 7.4 0.0

2050-2054 28.0 2.4 0.0 0.0 0.0 13.5 3.0 18.9 68% 152.4 71% 14.0 50% 135% 145% 3.4 2.7 0.0 8.4 0.0

2055-2059 2.3 0.5 0.0 0.0 0.0 0.0 0.6 1.2 50% 153.6 71% 1.2 50% 101% 145% 0.3 0.0 0.0 0.9 0.0

Total 215.8 14.4 0.3 20.2 5.2 108.6 5.0 153.6 859.2 106.0 145% (7) 25.9 56.7 23.1 69.9 0.0

(1) - 1/2 year sequestration required @ 20% = 20% annual(2) - 1/2 year sequestration required @ 20% & 1/2 year sequestraion required @ 30% = 25% annual(3) - 1/2 year sequestration required @ 30% & 1/2 year sequestraion required @ 50% = 40% annual(4) - Fines reclaimed from MFT inventories and combined with CST and TT to produce NST

(5) - % Fines Sequestered is calculated by: Fines Sequestered / D074 Fines Target; Significant digets effect the final % shownFines Seq + JPM Fines in Other Tailings (6) - Fines Balance Sample Calculation: Ore Fines to Extraction + Additional Fines Feed Source to Balance (MFT Reclaim only) = JPM Fines Sequestered in DDA's + JPM Fines In Other TailingsFines Seq + JPM Fines in Other Tailings

(7) - This value represents the fines sequestered in DDA's as a % of that required by Directive 074 (~50% annually). It is not based on the total fines processed.(8) - The fines reported in the first 5 years varies from that of the previous submission. This is due to changes in the mine sequence. Please refer to '2011 JPM-Phase I Annual ERCB Mine Plan' submission for 5 year details

Fines Balance

(6)(Mt)

Annual Fines Seq.

as % of Extraction

Feed(%)

Cumulative Fines Seq.

as % of Extraction

Feed(%)

JPM Fines Sequestered in DDAsD074 Fines Sequestered Targets and

Performance

TSRU to MRM

MFT Reclaim

(4)(Mt)

Year(8)

Ore Fines to

Extraction(Mt)

Additional Fines Source to Balance

Beach / Stacked Sand / Cell(Mt)

MFT Run-off

ETDA TT (DDA1) Inpit DDAs

JPM Fines in Other Tailings

TotalFines Seq.

(Mt)

Cumulative Fines Seq.

(Mt)

Annual D074

Fines Seq. Target

(Mt)

Annual D074

Fines SeqTarget

(%)

Annual % Fines Seq.

(%)(5)

Cumulative % of

Fines Seq. Target

(%)(5)



- 25 -


7. CONCORDANCE TABLE IN SUPPORT OF ERCB D074 APPENDIX E

Conditions Information Location Page

1 a description of the tailings management plan and any deviations from the approved tailings plan for the entire mine scheme;

Section 2 5

2 a process flow diagram for the scheme’s tailings operations;

Appendix E

Figure E.1, Figure E.5

53-54

3 a mineable oil sands reserves table for the life of the mine scheme that includes”

• mine total waste, overburden,

• and interburden, and ore quantity, bitumen grade, fines, sand, and water (as a weight per cent of the ore), and recovered barrels of bitumen;

Appendix D

Table D.1

Table D.2

39

40

4 a production forecast table for the life of the mine scheme by time period, including • mined total waste, • mined ore, bitumen grade, and recovered

barrels of bitumen, and • total tailings production by type;

Appendix D

Table D.2

Table D.3

Table D.6

39

41

44

5 a table of waste material (overburden and interburden) classified by: • geologic formation (Holocene, Pleistocene,

Clearwater, McMurray, etc.) with associated volume and weight,

• type and per cent of material suitable for tailings impoundment construction, and

• the amount projected for use in tailings impoundment construction;

Appendix D

Table D.3

41

6 a table that schedules the source and destination of waste material by: • mass and volume, classifying material type by

structure, • the material types—overburden, interburden,

crusher rejects (or oversize), and tailings—used

Appendix D

D.2

D.3

39

41


- 26 -


for structures,

destination area, including DDAs, external and in-pit waste disposal areas, external and in-pit tailings impoundment structures, and external and in-pit tailings areas;

7 a starting baseline for all structures, including the present elevation of each waste material type within each structure;

Appendix D, Table D.4 42

8 a construction schedule, volume, and projected life span for each tailings impoundment structure;


9 An illustration of fluid tailings impoundment and DDA capacity versus the associated storage requirements;

Appendix D,

Figures D.2, D.3

50, 51

10 destination and description of each tailings type by structure, including mass, volume, and components (water, fines, sand, and bitumen, as a per cent of the ore);

Appendix D

Tables D.7, D.8, D.9

45-47

11 a site-wide tabulation and illustration of fluid tailings inventory;


12 site-wide sand, fines, and water balance; Tables D.7, D.8, D.9 45-47

13 mine scheme development maps by reporting period, and a text description of the major development activities as illustrated on each map;

Appendix A 1-28

14 a summary of tailings water chemistry, seepage water chemistry, and seepage water rates into the groundwater from reports of groundwater and tailings monitoring programs provided to AENV;

To be provided when available

15 a description of the process for remediation or re-handling of segregated fines within the DDAs within one year of segregation;

Section 3 11-15

16 planning assumptions and criteria used to support the tailings management plan, such as fines distribution in the ore body, tailings stream-specific gravities, tailings consolidation curves, tailings deposition angles, and tailings impoundment design and construction criteria



- 1 - Appendices


APPENDIX A - MINE AND TAILINGS SEQUENCES

2010 Period

Pre-production activities in the first half of 2010 focus on construction of the DDA1 Starter Dyke and SC1 Starter dyke. Suitable fill material for the two starter dyke structures was sourced from borrow areas within the mine footprint. All sourced borrow material has come from overburden stripping, primarily quaternary sediments.

Commissioning and start-up of JPM occurred in August 2010. Lean oil sands (ore less than 7 wt% bitumen) was delivered to the plant for early commissioning.

Starter dykes were raised to a design height to achieve containment for start-up. DDA1 has provided initial containment for:

CST and WT produced during the first three months of operation;

TT deposition on deposits above water; and

A minimal water pond required to locate the sump and pumping equipment.

The SC1 starter dykes have provided initial containment for:

Commissioning water and Basal Pond containment;

Lost cell sand from cell construction;

Beaching of CST and WT during the first winter;

Clarification pond and consolidation of TFT;

Clear water cap for plant reclaim;

Freeboard to the pond level.

CST and WT will be used in Q4 2010 to establish deposits for the deposition of TT commencing in Q1 2011 in DDA1.

Dewatering and stripping activities will begin for the preparation of DDA2 scheduled to be active in Q4 2011.

Cell construction will be focused on the upstream dykes for SC1 during the remaining cell construction season. Beaching of CST and WT will commence in SC1 during the winter months. All TFT runoff will accumulate within the deposited deposits with a clear water cap maintained on top of the pond for plant reclaim water.

Placement of suitable overburden borrow material will continue on the downstream side of the TT starter dyke during early production. The DDA1 and SC1 Dykes will


- 2 - Appendices


continue to receive suitable material throughout the year in order to establish the containment requirements without the benefit of a full cell construction season.

Mine waste will be placed in the West Overburden Dump Area (WODA) Phase 1.

ERCB Directive 074 JPM Tailings Management Plan - 3 - Appendices


Figure A.1: Mining Status 2010


- 4 - Appendices


2011 to 2013 Period

Ore and waste mining will continue south of the crusher pocket, advancing west along the footprint of in-pit Dyke1 and Dyke2. Dyke footprint clearing with an additional minimum clearance will establish an approximate 1,800 m wide advance at the Base of Mineable Oil Sands (BMOS). The Fluid Cell 1 area south of the Ore Prep area and east of WODA will be completely cleared to BMOS during this period.

Suitable material will continue to be placed in SC1 dykes to augment cell sand requirements throughout 2011. The preliminary design of the SC2 starter dykes includes excavation of a shear key in target sections along the starter dyke. The SC2 starter dyke is designed to contain:

CST, WT, and MFT;

Sufficient pond capacity to float the transfer barge; and

Freeboard to the pond level.

CST and WT will be used to construct containment dykes. CST and WT will be discharged into deposit deposits in SC1 during winter operations. All TFT, MFT and free water will continue to pond within the deposited deposits of SC1. TT will form deposits in DDA1 throughout the year with a minimal pond established to continuously pump TFT and free water into SC1.

The DDA2 winter operation will be active in Q4 2011 and receive the TT stream over the winter months allowing the TT in DDA1 to dewater. The second area of DDA2 will be available in Q3 2012 and is designed as a contingency TT drying area in the event that DDA1 is not meeting performance expectations.

WODA Phase 1 will be filled to capacity during this period, and dumping will commence in WODA Phase 2. WODA Phase 2 design crosses Canterra Road to the west to a Phase 2 design boundary location. The WODA Phase 2 boundary is established to allow completion of the resource delineation along the west side of the ultimate WODA footprint.











- 8 - Appendices


2014 to 2019 Period

Ore and waste mining will continue to advance west, targeting exposure of the Dyke 1 footprint at the BMOS to the east mining limit. Prestripping will reach the southeast limit of the Cell 1 area in 2016. Prestripping will then turn south to the limit of Cell 1 and north to establish prestrip benches in the Cell 2 area.

SC2 starter dyke construction will be complete in 2014 at which time all suitable material will be utilized in-pit to construct Dyke 1 and Dyke 2, which will ultimately contain Cell 1 and Fluid Cell 1. Construction of Dykes 1 and 2 will continue throughout this period.

SC2 will begin operation in 2014, in tandem with SC1, with an objective of raising SC2 containment to the same elevation as SC1. This will result in a single pond eliminating the cross dyke separating SC1 and SC2. All Fluid Tails will continue to pond within the deposited deposits of both Sand Cells. TT discharge will continue to DDA1 and DDA2.

The MFT centrifuge process begins in Q2 2014. The densified MFT will be placed in DDA1 and mechanically amended to meet Directive 074 requirements.

As the mine advance approaches DDA2, a new location for DDA2 will be identified and prepared from 2018 to 2019 ready for TT deposition in 2020.

Mine waste placement will continue in WODA Phase 2 throughout the period.




















- 15 - Appendices


2020 to 2024 Period

Ore and waste mining of the entire Cell 1 area will be completed. The mine advance will then turn north, focusing on clearing Dyke3 and Dyke4 footprints to the BMOS, which will provide containment for Cell2.

All suitable material available will be placed in Dyke 1 and Dyke2. Dyke2 will be completed to design elevation, providing full containment for Fluid Cell 1. Dyke1 will be tied into the east mine highwall to provide initial containment in Cell 1. Some material placement will be required in the upper lifts at the east end of Dyke1 to complete construction to the final design elevation.

SC1 and SC2 will be merged into a single Sand Cell with one area of MFT and water inventory. TT discharge will continue to DDA1 and DDA2. MFT densification through centrifuge will continue.

WODA Phase 2 will be filled to capacity during this period, and dumping will commence in WODA Phase 3. WODA Phase 3 design extends to the ultimate WODA limit and final design elevation.



Figure A.11: Mining Status 2020 to 2024


- 17 - Appendices


2025 to 2029 Period

Mine advance will continue north, focusing on clearing Dyke 3 and Dyke 4 footprints to the BMOS.

All suitable material available will be placed in Dykes 1, 3, 4 and 5. Dyke 1 will be completed to design elevation to provide full containment for Cell 1. Construction of Dyke 4 will commence at the south end along the tie-in with the mine highwall, adjacent to the Ore Preparation area.

Alternating seasons of summer cell construction and winter deposit deposition will continue in the ETDA until 2027 when the Sand Cell reaches final design capacity. At this time, tailings production will be switched to NST deposition into Cell 1. The continuous removal of TFT and free water from Cell 1 will be pumped to Fluid Cell 1 for clarification. TT discharge to DDA1 and DDA2 will be suspended when NST production starts. NST deposition to Cell 1 will continue through the end of the period.

Mine waste placement will continue in WODA Phase 3 until it is filled to its final design capacity. Dumping will then commence in the East Overburden Disposal Area (EODA). The EODA design limit is offset from the Cell 1 east-mining limit, overlaying the Pleistocene Channel Aquifer between JPM and Syncrude’s proposed Aurora South Mine.





- 19 - Appendices


2030 to 2034 Period

The mine advance will continue north focusing on clearing Dyke 3 and Dyke 4 footprints to the BMOS. The footprint will also be cleared for Dyke 3 which is an intermediate (overtopping) dyke established to generate an intermediate tailings containment within Cell 2 prior to the entire cell becoming available.

All suitable material available will be placed in four in-pit dykes. Dykes 4 and 5 will be constructed for Cell 2 containment. Dyke 3 is designed to an adequate height to provide initial containment for Cell 2-intermediate (Cell 2i), in conjunction with the south sections of Dykes 4 and 5 (Dykes 4a and 5a). A plug of construction material will be placed in the crusher pocket to seal off the Ore Preparation area from the west side of Cell 2 necessitating a relocation of the dump pocket. Construction of all four dykes will continue throughout the period.

NST deposition in Cell 1 will continue throughout the period. All TFT and free water will be pumped to Fluid Cell 1 for clarification.

Mine waste placement will continue in EODA until it is filled to design capacity. Dumping will then commence in the in-pit dump located in the southeast corner of Cell 2, In-Pit Dump 1.





- 21 - Appendices


2035 to 2039 Period

The mine advance will continue north clearing out the remainder of Cell 2 to the BMOS and then split to progress west and east from Cell 2. The west advance will clear footprint to establish additional in-pit dump space and the east advance will clear footprint to establish Cell 3.

Suitable material placement will continue in Dykes 3, 4, 5 and the Crusher Pocket Dyke. Dykes 3, 4a, 5a and the Crusher Pocket Dyke will be constructed to final design elevation, providing full containment in Cell 2i. Construction of the north section of Dykes 4 and 5 (Dykes 4b and 5b) will continue to the end of the period.

NST production will continue with deposition in Cell 1 until 2035 at which point NST production will revert to separate stream technology. The produced CST will be placed over the NST to form the final (upper) 5 m of the Cell 1 deposit. CST capping of Cell 1 will occur in 2035 and 2036, and all TT produced will be deposited in DDA1. Upon completion of Cell 1 CST capping, tailings production will switch back to NST for deposition in Cell 2i. All TFT and free water will be pumped to Fluid Cell 1 for clarification.

All mine waste will be placed in an in-pit dump located in the northwest corner of Dyke 4.





- 23 - Appendices


2040 to 2044 Period

The west mine advance will progress to establish a footprint for expansion of the in-pit dump in that location. The mine fleet will be reallocated to join the remaining fleet on the east mine advance focused on clearing Dyke 6 footprint at the BMOS.

Suitable material placement will continue in Dykes 4b, 5b and 6. Dykes 4b and 5b will be tied-in to the north mine highwall to establish containment in Cell 2. Some material placement will be required in the upper lifts at the north end of both dykes to complete construction to design elevation. NST production will continue with deposition in Cell 2i until 2042. At this time NST deposition will commence in the remainder of Cell 2 and continue through the end of the period. All TFT and free water will be pumped to Fluid Cell 1 for clarification.

All mine waste placement will continue in an in-pit dump located in the northwest corner of Dyke 4




ERCB Directive 074 – Tailings Management Plan

- 25 - Appendices


2045 to 2055 Period

The mine fleet will be split to advance east and west clearing all of the remaining mine footprint.

Suitable material will be placed in three in-pit dykes. Dykes 4b, and 5b will be completed to final design elevation. Dyke 6 will be constructed to provide containment for the final in pit Cell 3.

NST deposition will continue in Cell 2 until 2049. The CST cap will be placed over the NST 2049 and 2050. Upon completion of Cell 2 CST capping, tailings production will switch back to NST deposition in Cell 3 from 2050 to 2054. The CST cap will be placed over the Cell 3 NST in 2054 and 2055 and TT produced will be deposited in DDA1. All TFT and free water will be pumped to Fluid Cell 1 for clarification.

Mine waste will be placed in three in-pit dumps. The dump located in the northwest corner of Dyke 4 will be filled to capacity. A dump will be established along the east side of Dyke 6 and a berm fill dump will be constructed along the ultimate west mine highwall adjacent to the Muskeg River.










- 29 - Appendices


APPENDIX B - CLOSURE OF DEDICATED DISPOSAL AREAS

DDA1

Completion of TT deposition and pumping of MFT to the adjacent ETDA Sand Cell or to NST production is anticipated in 2055. As shown in Table 4.1 TT is deposited over four periods: initial deposition and three subsequent depositions during CST capping activities in each of the in-pit tailings cells. Between each of these periods, a thin layer of CST will be placed over the TT within DDA1 to facilitate water expression from the deposit. Deposit strength required to allow a trafficable surface is anticipated to be achieved by 2057.

Upon completion of the JPM Phase 1 TT deposition events, the TT elevation is expected to reach 361 masl within DDA1. As described in Section 2.1, the latent capacity within the TT cell structure (at the approved 381 masl) is intended to act as contingency in the event that plan changes generate increased volumes of TT. To maintain the integrity of fines sequestration within the DDA alternative tailings storage has not been planned for this TT cell capacity. In the event that this latent capacity is not required, the TT cell will be capped with an overburden plug to bring the final elevation to the 381 masl elevation required for the closure drainage activities.

Overburden sourced from storage areas will be placed onto the trafficable TT surface to an average depth of 15m (or a minimum of 3m if JPM Expansion TT deposition fills the TT cell). The overburden cap will be contoured to grade to the adjacent dyke walls providing channels for drainage and mesotopographical features for reclamation activities. Cross sections showing typical overburden and reclamation material depths along drainage channels and at high and low elevations on the DDA1 surface are provided in (Figures B.2 – B.6). Overburden capping activities are scheduled to occur between 2057 and 2059 (refer to Table 4.1) to cover the 4.5km2

surface area of DDA1.

Final Landform Design of DDA1

As DDA1 is part of the larger ETDA landform, reclamation activities and drainage features have been adapted to provide an operational reclamation plan until the ETDA is closed and the closure drainage plan for the entire structure is completed. The location of the DDA1 requires that activities related to vegetation of the dyke wall to be controlled by Dam Safety Board regulations until such time as the Sand Cells are closed and the ETDA is decommissioned. Some reclamation activities will be carried out at the closure of DDA1 to prepare the area for further revegetation at closure.


- 30 - Appendices


Closure Drainage Design

Until final closure of the ETDA, the drainage for DDA1 is designed to drain surface water eastwards towards SC1 and to provide vegetated waterways draining dyke wall areas towards the toe interception ditch around the entire ETDA (Figure B.1). Drainage from DDA1 is designed to expand to the drainage network across the remainder of the ETDA at closure, but will be maintained within a closed-loop area while the ETDA remains in operation.

Overburden capping materials will be contoured to provide the appropriate channel morphologies, as described in the JPM Phase 1 Application (2002). It is anticipated that overburden capping material will settle over time and provide micro topographical variation on the surface.

Reclamation Material Placement

On completion of overburden capping, reclamation materials will be placed according to prescribed replacement depths within EPEA Approval No. 153125-00-00. Closure and reclamation plans for JPM Phase 1 will be designed to meet the conditions within the Muskeg River Mine Expansion EPEA Approval No. 20809-01-00 and the reclamation designs shown in (Figures B.2 – B.6).

Reclamation material will be direct placed from salvage activities in northern pit areas, or from Reclamation Material Stockpiles (RMS) (Figure 2.1 located close to the ETDA. Dyke wall slopes and the top of the dyke will have an average of 30cm of peat-mineral mix placed over the overburden capping materials. The dyke walls were originally planned to have upland soils replaced on their surface as per the approved closure, conservation and reclamation plan for JPM Phase 1, however AENV Dam Safety has advised that the use of upland soils and subsequent woody species growth is contraindicated for dam safety inspections. Peat-mineral mix has therefore been substituted in these areas and an Alberta Sustainable Resource Development-approved grass mix planted until such time as the ETDA is decommissioned and the planting of woody species is allowed.

DDA1 top surface areas adjacent to drainage channels and in flat areas will have 20cm of coarse-textured upland surface soil and 30cm of medium-textured subsoil placed in areas designed for “g1” ecosites. These upland soils will be either medium or coarse-textured depending on the ecosite planned for the location (refer to Revegetation Design next section). Peat-mineral mix to a depth of 30cm will be placed on the banks of drainage channels.


- 31 - Appendices


Revegetation Design

Creation of the channel areas also provides adjacent raised “hummock” areas that will be used for upland ecosite development in the reclamation plans (refer to Figure B.1). It is anticipated that given the shallow gradient on the surface of DDA1 area, most of the areas around the drainage channels have the potential to remain moist and have been designed as “g1” ecosites with areas of “c1” in hummock areas and “h1” adjacent to drainage channels (Figures B.2 – B.6)

Areas around the periphery of the top surface, top of the dyke and on the slopes of the dyke walls have been designed as “d” ecosites with an area of “c” ecosite on the potentially drier south-facing top slope (Figures B.2 – B.6). The closure plan presented in (Figures B.2 – B.6) indicates boreal mixedwood ecosites on the dyke walls, as per EPEA Approval No. 153125-00-00 for JPM Phase 1, however it should be noted that reclamation plans may see these areas grassed for a period designated by the Dam Safety Board.

Figure B.1: DDA1 Closure Landform Design and Drainage Features


- 32 - Appendices


Figure B.2: Cross Section A‐A1 of DDA1 Drainage Channels


- 33 - Appendices


Figure B.3: Cross Section B‐B1 of DDA1 Drainage Channels


- 34 - Appendices


Figure B.4: Cross Section C‐C1 of DDA1 Drainage System at Outlet to Adjacent SAND Cell


- 35 - Appendices


Figure B.5: Cross Section D‐D1 of DDA1 Top Surface to Dyke Wall Junction


- 36 - Appendices


Figure B.6: Cross Section E‐E1 of DDA1 Top Surface to Dyke Wall Junction

Formation and Capping of DDA2

DDA2 is located on top of mineable oil sands. It is not intended to be a feature of the closure landscape. The location is being operated as a temporary facility that includes rehandling the dried TT and placing it within dumps, dykes, or inpit cells. The mine will advance through this temporary facility eliminating it from the closure landscape.

Final Landform Design of DDA2

The material treated within DDA2 will be rehandled and relocated to dumps, dykes, or in pit cells. These locations will be reclaimed as part of the final closure landform.


- 37 - Appendices


APPENDIX C - ENGINEERING DESIGN

ETDA – DDA1

DDA1 is contained by a 6500 m long centreline dyke along the north, west, and south sides and a 2100 m long upstream dyke along the east side (Figure C.1). It is constructed to an ultimate elevation of 381 metres above sea level (masl) and a maximum height of 67m above grade. The footprint of the structure occupies approximately 4.5km2 from the centreline toe to the upstream crest.

The centreline starter dykes are constructed entirely of overburden to an elevation of 324.9masl. This portion of the structure is built in two phases:

A 50m top-width ring-dyke will be constructed along the upstream side of the centreline section of the structure to provide initial containment of the tailings. The volume of this preliminary dyke is 3.3Mm3.

The remainder of the starter dyke will be constructed following completion of the first phase and requires 13.1Mm3 of overburden.

External dyke slopes along the centreline portion of JPM DDA1 vary from 6H:1V to 4H:1V. The external slope angle is controlled by foundation conditions, specifically, the shear strength of the material and pore pressure response to loading. At this location Tidal Flat Mud (TFM) and Clearwater materials (Kc) govern the overall slope. Shallow Plasticity Index (Pl) clays are stripped to a width equal to three times the height of the starter dyke along the starter dyke footprint.

The upstream portion of the starter dyke is constructed entirely of overburden to the adjacent SC1 design elevation of 335.75 masl. Approximately 4.5Mm3 of material is required to construct the dyke. Shallow Pl clays are stripped to a width equal to three times the height of the starter dyke along some sections of the structure. A buttress of tailings will be deposited on the downstream side of the upstream dyke, as the maximum unsupported height of this dyke is 20m.

As a cell is built above the starter dyke, the upstream dyke crest moves away from JPM DDA1 towards the adjacent Sand Cell. The external dyke slope is 4H:1V, governed by shallow Kc deposits and the potential for liquefaction failure.

Internal dyke slopes for both centreline and upstream dykes are assumed to be 2H:1V.


- 38 - Appendices

Figure C.1: Dyke Design

TT Drying Areas

Detailed construction diagrams will be provided in an ERCB application for the TT drying area. The preliminary concept is to create summer and winter operational areas within the designated area. Phase I is being prepared for winter deposition and will require the TT pipeline to be extended to the drying area and containment berms around the perimeter. The Phase II summer area will involve segmentation into multiple deposit locations for drying, mechanical working, and re-handling of the dried TT.



- 39 - Appendices


APPENDIX D - MINE AND WASTE MATERIAL BALANCE

Table D.1: Mineable Oilsands Reserves and Production

Bitumen (wt %)

Water (wt %)

Coarse (wt %)

Fines2

(wt %)

2011 50.8 1.8 49.0 12.4% 4.7% 73.7% 9.2% 33.1

2012 63.9 2.3 61.5 11.7% 4.7% 75.8% 7.9% 38.2

2013 56.7 2.1 54.7 11.8% 4.7% 76.0% 7.6% 34.5

2014 66.0 2.4 63.7 11.6% 4.7% 75.4% 8.4% 39.0

2015 65.2 2.4 62.8 11.8% 4.7% 76.3% 7.3% 39.6

2016 60.2 2.2 58.0 12.0% 4.7% 77.3% 6.0% 37.1

2017 55.8 2.0 53.8 12.1% 4.7% 76.0% 7.3% 34.6

2018 58.4 2.1 56.2 12.7% 4.7% 76.1% 6.5% 38.4

2019 61.3 2.2 59.0 12.3% 4.7% 76.3% 6.8% 38.9

2020-2024 313.5 11.4 302.2 11.5% 4.7% 76.3% 7.6% 182.5

2025-2029 312.5 11.3 301.2 11.6% 4.7% 75.3% 8.5% 182.5

2030-2034 302.2 11.0 291.2 11.9% 4.7% 76.5% 7.0% 182.4

2035-2039 308.3 11.2 297.2 11.7% 4.7% 75.9% 7.8% 182.6

2040-2044 305.7 11.1 294.6 11.7% 4.7% 74.5% 9.1% 182.4

2045-2049 317.5 11.5 306.0 11.4% 4.7% 75.0% 9.0% 182.5

2050-2054 309.1 11.2 297.9 11.6% 4.7% 74.3% 9.4% 182.5

2055 28.2 1.0 27.2 11.6% 4.7% 75.3% 8.5% 16.5

Totals 2,735.4 99.2 2,636.3 11.7% 4.7% 75.5% 8.1% 1,627.4

Extraction Ore Quality 3 Recovered Barrels (Mbbls)

(2) - Fines measured in Sieve Hydrometer(1) - Includes ore stockpile quantities in January 2014 through December 2015

(3) - Extraction Ore Quality calculated after breaker rejects

Year Total Ore Mined

(Mt) 1Total Ore Rejects

(Mt)Total Ore

Extraction (Mt)


- 40 - Appendices


Table D.2: Mine Waste Material Balance, Dumps

Cell Capping

WODA Phase 1

WODA Phase 2

WODA Phase 3

EODAInpit Dump

1 Inpit Dump

2Inpit Dump

3Inpit Dump

4

(Mt) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm)

2011 40.4 19.4 1.4 16.5 1.5 0.0 16.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0

2012 51.7 24.8 10.3 13.4 1.1 0.0 0.0 13.4 0.0 0.0 0.0 0.0 0.0 0.0

2013 42.4 20.4 10.4 6.9 3.0 0.0 0.0 6.9 0.0 0.0 0.0 0.0 0.0 0.0

2014 40.3 19.4 9.9 7.7 1.8 0.0 0.0 7.7 0.0 0.0 0.0 0.0 0.0 0.0

2015 37.4 18.0 9.0 8.2 0.8 0.0 0.0 8.2 0.0 0.0 0.0 0.0 0.0 0.0

2016 41.4 19.9 10.3 8.4 1.3 0.0 0.0 8.4 0.0 0.0 0.0 0.0 0.0 0.0

2017 44.4 21.4 12.0 8.7 0.6 0.0 0.0 8.7 0.0 0.0 0.0 0.0 0.0 0.0

2018 47.5 22.9 12.1 9.1 0.3 0.0 0.0 9.1 0.0 0.0 0.0 0.0 0.0 0.0

2019 51.5 24.7 10.1 7.0 5.5 0.0 0.0 7.0 0.0 0.0 0.0 0.0 0.0 0.0

2020-2024 254.7 122.4 51.4 61.3 9.7 0.0 0.0 3.9 57.4 0.0 0.0 0.0 0.0 0.0

2025-2029 252.7 121.5 50.9 66.2 5.1 0.0 0.0 0.0 14.6 51.6 0.0 0.0 0.0 0.0

2030-2034 254.3 122.2 66.2 52.6 3.7 0.0 0.0 0.0 0.0 14.7 37.9 0.0 0.0 0.0

2035-2039 248.0 119.2 67.1 48.9 3.3 0.0 0.0 0.0 0.0 0.0 0.0 48.9 0.0 0.0

2040-2044 248.1 119.3 66.1 33.4 3.8 15.7 0.0 0.0 0.0 0.0 0.0 33.4 0.0 0.0

2045-2049 266.0 127.9 67.7 52.1 6.7 0.0 0.0 0.0 0.0 0.0 0.0 36.4 15.7 0.0

2050-2054 218.3 104.9 18.9 84.4 0.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 84.4

2055 31.1 14.9 0.0 19.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 19.9

Total 2,170.2 1,043.4 473.9 504.8 49.1 15.7 16.5 73.4 72.0 66.3 37.9 118.7 15.7 104.4

(2) - Reclamation material either stockpiled or direct placed

YearTotal

Waste1

Reclama-tion

Material2Dump

Placed Dyke

Dump LocationsTotal

Waste

(1) - Total waste includes interburden and overburden, these materias are not diffirentiated in the scheduling software and cannot be presented individually


- 41 - Appendices


Table D.3: Mine Waste Material Balance, Dykes

Total Mine Waste

Total Mine Waste

Available Construction

Material

Construction Material Used

Projected Percentage

Used for Tailings

Impoundment

TT DDA1

Dyke (1)

SC1 Dyke (2)

SC2 Dyke

SC2 Shear Key (3)

Dyke 1 Dyke 2 Dyke 3 Dyke 4Crusher

Slot Dyke

Dyke 5 Dyke 6Perimet-

er Dykes

(Mt) (Mbcm) (Mbcm) (Mbcm) (%) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm) (Mbcm)

2011 40.4 19.4 11.2 1.4 13% 0.0 1.4 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

2012 51.7 24.8 16.2 10.3 63% 0.0 0.0 10.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

2013 42.4 20.4 12.0 10.4 87% 0.0 0.0 5.8 4.6 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

2014 40.3 19.4 11.0 9.9 90% 0.0 0.0 8.0 0.0 1.9 0.0 0.0 0.0 0.0 0.0 0.0 0.0

2015 37.4 18.0 10.2 9.0 89% 0.0 0.0 0.0 0.0 6.7 2.3 0.0 0.0 0.0 0.0 0.0 0.0

2016 41.4 19.9 12.3 10.3 84% 0.0 0.0 0.0 0.0 7.6 2.7 0.0 0.0 0.0 0.0 0.0 0.0

2017 44.4 21.4 14.7 12.0 82% 0.0 0.0 0.0 0.0 9.8 2.2 0.0 0.0 0.0 0.0 0.0 0.0

2018 47.5 22.9 16.0 12.1 76% 0.0 0.0 0.0 0.0 12.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0

2019 51.5 24.7 12.5 10.1 81% 0.0 0.0 0.0 0.0 9.9 0.2 0.0 0.0 0.0 0.0 0.0 0.0

2020-2024 254.7 122.4 77.2 51.4 67% 0.0 0.0 0.0 0.0 46.4 3.9 0.0 1.1 0.1 0.0 0.0 0.0

2025-2029 252.7 121.5 82.4 50.9 62% 0.0 0.0 0.0 0.0 26.7 0.0 0.4 21.6 1.0 1.2 0.0 0.1

2030-2034 254.3 122.2 87.1 66.2 76% 0.0 0.0 0.0 0.0 0.0 0.0 7.7 32.2 1.4 23.4 0.0 1.5

2035-2039 248.0 119.2 83.9 67.1 80% 0.0 0.0 0.0 0.0 0.0 0.0 14.7 26.8 0.0 25.3 0.2 0.0

2040-2044 248.1 119.3 82.4 66.1 80% 0.0 0.0 0.0 0.0 0.0 0.0 0.0 27.3 0.0 31.0 7.7 0.1

2045-2049 266.0 127.9 87.8 67.7 77% 0.0 0.0 0.0 0.0 0.0 0.0 0.0 4.3 0.0 5.0 57.3 1.0

2050-5054 218.3 104.9 72.9 18.9 26% 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 17.5 1.4

2055 31.1 14.9 13.8 0.0 0% 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0

Totals 2,170.2 1,043.4 703.5 473.9 67% 0.0 1.4 24.1 4.6 121.2 11.3 22.7 113.3 2.5 85.9 82.8 4.0

(1) - TT DDA1 Dyke includes materials placed for the starter and centreline constructed dykes.(2) - SC1 Dyke includes material placed for the starter and upstream constructed dykes

Year

(3) - Shear key design for SC2 has been modified since the 2009 Submission from 12Mm3 to 4.6Mm3


- 42 - Appendices


Table D.4: Baseline for Mine and Tailings Structures January 2011

WODA Ph 1 23.1 6.6 324m 16.5

WODA Ph 2 73.4 0.0 N/A 73.4

WODA Ph 3 72.0 0.0 N/A 72.0

EODA 66.3 0.0 N/A 66.3

TT DDA1 Starter Dyke 15.8 15.8 324m 0.0

SC1 Starter Dyke 17.6 16.2 332m 1.4

SC2 Starter Dyke 24.1 0.0 N/A 24.1

SC2 Shear Key (1) 4.6 0.0 N/A 4.6

TT DDA1 150.8 0.0 324m 150.8

Sand Cells 466.0 0.0 332m 466.0

(1) - SC2 (Sand Cell 2) Shear Key has been redesigned to reduce the overall volume of material removed and replaced as fill

Current Elevation(masl)

Remaining Volume(Mm3)

TAILINGS

StructureDesigned Volume

(Mm3)Placed Volume

(Mm3)

MINE

StructureDesigned Volume

(Mm3)Placed Volume

(Mm3)Current Elevation

(masl)Remaining Volume

(Mm3)


- 43 - Appendices


Table D.5: Tailings Activities Schedule

Contain Dyke Start Finish Capacity Start Finish

ETDA - TT(1) DDA1 TT C/L Dykes(2), SC1 West U/S Dyke(3) Cell Cell 150.8 2010 2055

TT Drying DDA2 Berms constructed at location 2010 2011 NA 2011 2026

ETDA - SC1(4) SC1 U/S Dykes Cell Cell 364.6 2010 2027

ETDA SC2(4) SC2 U/S Dykes, SC1 East U/S Dyke Cell Cell 101.4 2014 2019

NST Cell 1 D1(5), D2, Pit Wall 2014 2029 266.7 2027 2037

Fluid Cell 1 D2, Pitwall 2015 2022 47.4 2026 2055

NST Cell 2i D1, D3, D4a, D5a 2014 2039 177.0 2037 2043

NST Cell 2b D1, D4a, D4b, D5a, D5b, Pit Wall 2014 2046 211.2 2043 2052

NST Cell 3 D5a, D5b, D6, Pit Wall 2030 2051 134.9 2051 2055

(1) - TT DDA1- Thickened Tailings Storage Location Dykes

(2) - C/L Dykes - Centre Line Dyke Construction Technique

(3) - U/S Dykes - Upstream Dyke Construction Technique

(4) - SC - Sand Storage

(5) - D1, D2, etc. - Dyke number in order of construction

Tailings Impoundment

Dykes - Construction Tailings Cell - Filling


- 44 - Appendices


Table D.6: Tailings Tonnage by Product

CST WT TT TSRU NST Centrifuge MFT

(Mt) (Mt) (Mt) (Mt) (Mt) (Mt)

2010 7.00 3.54 0.72 0.29 0.00 0.00

2011 28.29 7.91 3.34 1.08 0.00 0.00

2012 36.55 10.04 3.63 1.28 0.00 0.00

2013 32.56 8.91 3.10 1.12 0.00 0.00

2014 30.81 17.90 3.26 1.36 0.00 1.32

2015 28.94 19.65 2.64 1.27 0.00 1.75

2016 34.72 9.97 2.58 1.09 0.00 1.75

2017 32.05 8.74 2.93 1.08 0.00 1.75

2018 31.91 10.89 2.61 1.08 0.00 1.75

2019 33.13 11.92 2.81 1.15 0.00 1.75

2020-2024 180.64 49.43 17.07 6.20 0.00 6.41

2025-2029 94.81 26.23 10.09 6.46 118.26 3.79

2030-2034 0.00 0.00 0.00 5.78 248.75 0.00

2035-2039 35.22 9.66 3.44 6.16 201.49 0.00

2040-2044 0.00 0.00 0.00 6.50 245.12 0.00

2045-2049 0.00 0.00 0.00 6.73 256.25 0.00

2050-2054 66.55 18.62 7.93 6.68 152.40 0.00

2055-2059 16.05 4.44 1.71 0.58 0.00 0.00

Totals 689.2 217.9 67.8 55.9 1,222.3 20.3

CST Coarse Sand Tailings TSRU Tailings Solvent Recovery UnitWT Whole Tailings NST Non-Segregating Tailings - Combined CST with TTTT Thickened Tailings

Year

Plant Tailings


- 45 - Appendices


Table D.7: Tailings Material Balance (table 1 of 3)

Sand Fines Water Bitumen Total Mineral

Volume Location Sand Fines Water Bitumen Total Mineral

Volume Location Sand Fines Water Bitumen Total Mineral

Volume Location

Mt Mt Mt Mt Mt Mm3 Mt Mt Mt Mt Mt Mm3 Mt Mt Mt Mt Mt Mm3

2010 6.6 0.4 6.7 0.0 7.0 4.5 ETDA 3.3 0.3 4.0 0.0 3.5 2.2 ETDA 0.4 0.3 2.2 0.0 0.7 0.7 DDA1&2

2011 26.6 1.7 27.2 0.1 28.3 17.6 ETDA 7.1 0.8 9.4 0.0 7.9 4.9 ETDA 1.9 1.4 10.2 0.1 3.3 3.1 DDA1&2

2012 34.7 1.9 35.1 0.2 36.6 22.9 ETDA 9.2 0.9 11.6 0.1 10.0 6.3 ETDA 2.1 1.5 11.1 0.1 3.6 2.5 DDA1&2

2013 30.9 1.6 31.3 0.1 32.6 20.5 ETDA 8.2 0.7 10.2 0.1 8.9 5.6 ETDA 1.8 1.3 9.5 0.1 3.1 2.1 DDA1&2

2014 29.1 1.7 29.6 0.1 30.8 19.1 ETDA 16.3 1.6 20.8 0.2 17.9 11.2 ETDA 1.9 1.4 10.0 0.1 3.3 2.2 DDA1&2

2015 27.6 1.4 27.8 0.1 28.9 18.0 ETDA 18.1 1.5 22.3 0.1 19.6 12.2 ETDA 1.5 1.1 8.1 0.1 2.6 1.8 DDA1&2

2016 33.4 1.3 33.4 0.1 34.7 21.8 ETDA 9.3 0.6 11.0 0.1 10.0 6.3 ETDA 1.5 1.1 7.9 0.1 2.6 1.8 DDA1&2

2017 30.5 1.5 30.8 0.1 32.0 19.9 ETDA 8.1 0.7 9.9 0.1 8.7 5.5 ETDA 1.7 1.2 9.0 0.1 2.9 2.0 DDA1&2

2018 30.6 1.4 30.7 0.1 31.9 20.0 ETDA 10.1 0.8 12.2 0.1 10.9 6.9 ETDA 1.5 1.1 8.0 0.1 2.6 1.8 DDA1&2

2019 31.7 1.5 31.8 0.1 33.1 20.6 ETDA 11.0 0.9 13.4 0.1 11.9 7.5 ETDA 1.6 1.2 8.6 0.1 2.8 1.9 DDA1&2

2020-2024 171.8 8.9 173.6 0.9 180.6 113.2 ETDA 45.4 4.0 56.5 0.4 49.4 30.9 ETDA 9.8 7.2 52.3 0.8 17.1 11.6 DDA1&2

2025-2029 89.6 5.2 91.1 0.5 94.8 60.0 ETDA 23.8 2.4 30.5 0.2 26.2 16.4 ETDA 5.8 4.3 30.9 0.4 10.1 6.6 DDA1&2

2030-2034

2035-2039 33.4 1.8 33.8 0.2 35.2 22.7 Cell1 8.9 0.8 11.1 0.1 9.7 6.1 Cell1 2.0 1.5 10.5 0.1 3.4 3.5 DDA1

2040-2044

2045-2049

2050-2054 62.4 4.1 63.9 0.3 66.6 42.7 Cell2/Cell3 16.7 1.9 22.1 0.2 18.6 11.7 Cell2/Cell3 4.5 3.4 24.3 0.3 7.9 8.1 DDA1

2055-2059 15.2 0.9 15.4 0.1 16.0 10.3 Cell3 4.0 0.4 5.2 0.0 4.4 2.8 Cell3 1.0 0.7 5.2 0.1 1.7 1.8 DDA1

Total 654.0 35.3 662.2 3.1 689.2 433.9 199.5 18.3 250.2 1.7 217.9 136.4 39.0 28.9 207.9 2.7 67.8 51.5

Year

Course Sand Tails (CST) Whole Tails (WT) Thickened Tails (TT)


- 46 - Appendices



Sand Fines Water BitumenTotal

MineralVolume Location Sand Fines Water Bitumen

Total Mineral

Volume Location Sand Fines Water BitumenTotal

MineralVolume Location

Mt Mt Mt Mt Mt Mm3 Mt Mt Mt Mt Mt Mm3 Mt Mt Mt Mt Mt Mm3

2010 0.2 0.1 2.2 0.2 0.3 0.2 MRM

2011 0.5 0.5 8.0 0.6 1.1 0.9 MRM

2012 0.7 0.6 9.5 0.7 1.3 1.1 MRM

2013 0.6 0.5 8.4 0.6 1.1 0.9 MRM

2014 0.7 0.6 10.0 0.7 1.4 1.1 MRM

2015 0.7 0.5 9.5 0.7 1.3 1.1 MRM

2016 0.7 0.4 8.4 0.6 1.1 0.9 MRM

2017 0.6 0.5 8.2 0.6 1.1 0.9 MRM

2018 0.6 0.4 8.5 0.7 1.1 0.9 MRM

2019 0.7 0.5 8.9 0.7 1.2 1.0 MRM

2020-2024 3.5 2.7 45.9 3.2 6.2 5.2 MRM

2025-2029 3.4 3.1 47.1 3.2 6.5 5.4 MRM 88.7 11.8 49.5 0.8 100.5 60.6 Cell1 15.7 2.1 13.4 0.1 17.7 10.8 Cell1

2030-2034 3.3 2.4 43.7 3.2 5.8 4.9 MRM 186.6 24.9 104.1 1.4 211.4 127.4 Cell1 32.9 4.4 28.1 0.3 37.3 22.7 Cell1

2035-2039 3.4 2.8 45.6 3.2 6.2 5.2 MRM 151.1 20.1 84.4 1.3 171.3 103.2 Cell2i/Cell2 26.7 3.6 22.8 0.2 30.2 18.4 Cell2i/Cell2

2040-2044 3.3 3.2 47.2 3.2 6.5 5.4 MRM 183.8 24.5 102.6 1.6 208.4 125.6 Cell2 32.4 4.3 27.7 0.3 36.8 22.3 Cell2

2045-2049 3.4 3.3 48.5 3.2 6.7 5.6 MRM 192.2 25.6 107.3 2.0 217.8 131.3 Cell2i/Cell2 33.9 4.5 29.0 0.3 38.4 23.3 Cell2i/Cell2

2050-2054 3.3 3.4 48.1 3.2 6.7 5.5 MRM 114.3 15.2 63.8 1.0 129.5 78.1 Cell2/Cell3 20.2 2.7 17.2 0.2 22.9 13.9 Cell2/Cell3

2055-2059 0.3 0.3 4.3 0.3 0.6 0.5 MRM 0.0 0.0 0.0 0.0 0.0 0.0 Cell3 0.0 0.0 0.0 0.0 0.0 0.0 Cell3

Total 30.0 25.9 411.9 28.5 55.9 46.7 916.7 122.2 511.7 8.1 1,038.9 626.2 161.8 21.6 138.3 1.4 183.3 111.3

Year

Non Segregating Tailings (NST) on-spec Non Segregating Tailings (NST) off-specTSRU (JPM)


- 47 - Appendices



MFT HarvestNST & Densification

Fines Feed Water

Densified Volume

Location Fines Total Minerals in Products

Total mineral to extraction and JPM

TSRUAdded MFT Mineral Mineral Balance

Check

Mt Mt Mm3 Mt Mt Mt Mt Mt

2010 11.5 11.5 0.0 0.0

2011 40.6 40.6 0.0 0.0

2012 51.5 51.5 0.0 0.0

2013 45.7 45.7 0.0 0.0

2014 1.3 3.1 1.5 DDA1 1.3 54.6 53.3 1.3 0.0

2015 1.8 4.1 2.1 DDA1 1.8 54.2 52.5 1.8 0.0

2016 1.8 4.1 2.1 DDA1 1.8 50.1 48.4 1.8 0.0

2017 1.8 4.1 2.1 DDA1 1.8 46.6 44.8 1.8 0.0

2018 1.8 4.1 2.1 DDA1 1.8 48.2 46.5 1.8 0.0

2019 1.8 4.1 2.1 DDA1 1.8 50.8 49.0 1.8 0.0

2020-2024 6.4 15.0 7.5 DDA1 6.4 259.7 253.3 6.4 0.0

2025-2029 3.8 8.9 4.4 DDA1 7.2 259.6 252.4 7.2 0.0

2030-2034 11.4 254.5 243.2 11.4 0.0

2035-2039 7.4 256.0 248.6 7.4 0.0

2040-2044 5.3 251.6 246.3 5.3 0.0

2045-2049 6.0 263.0 256.9 6.0 0.0

2050-2054 2.7 252.2 249.4 2.7 0.0

2055-2059 0.0 22.8 22.8 0.0 0.0

Total 20.3 47.4 23.8 56.7 2,273.4 2,216.7 56.7 0.0

Year

Centrifuge MFT Mineral Balance


- 48 - Appendices


Table D.10: MFT Inventory Schedule

2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020-2024 2025-2029 2030-2034 2035-2039 2040-2044 2045-2049 2050-2054 2055-2059

Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3 Mm3

TT DDA1 (1) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Sand Cells(ETDA) 1.14 5.62 10.45 14.59 16.62 16.53 13.25 10.38 9.31 8.48 13.52 7.56 1.41 2.59 2.59 2.59 5.38 5.97

Cell 1 (2) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Cell 2i (2) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Cell 2 (2) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Cell 3 (2) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

Fluid Cell 1 0.00 0.00 0.00 0.00 0.00 0.00 2.00 4.00 4.00 4.00 4.00 13.21 7.99 7.16 11.83 15.44 28.02 29.76

Total 1.14 5.62 10.45 14.59 16.62 16.53 15.25 14.38 13.31 12.48 17.52 20.77 9.40 9.75 14.42 18.04 33.39 35.73

(1) TT DDA1 is managed with a minimal amount of water inventory. No Thin Fine Tailings (TFT) or Mature Fine Tailings (MFT) will be stored in the TT DDA1

(2) NST cells are managed with a minimal water inventory for return water barge management. Thin Fine Tailings (TFT) or Mature Fine Tailings (MFT) are not stored in NST Cells

Pond


- 49 - Appendices


Figure D.1: Site Wide Tailings Fluid Inventory

0

10

20

30

40

50

60

70

80

90

100

2010 2015 2020 2025 2030 2035 2040 2045 2050 2055

Sitewide MFT Inventory (M

m3)

Year

MFT Densification ComissioningCentrifuge Q2 2014

NST Production Commences 2027

Sand Capping of NST Deposits

Higher Fines Content Orebody


- 50 - Appendices


Figure D.2: ETDA TT, DDA1 Tailings Storage by Elevation


- 51 - Appendices


Figure D.3: ETDA TT, DDA1 Tailings Storage Capacity


- 52 - Appendices


Table D.11: Tailings Planning Parameters

Stream BAW slope BBW slope % Fines to Fluids (MFT)

% Fines Captured (Solids)

Slurry Density(% Solids by

Weight)

Dry Density(t/m3)

Dry Density Void Ratio (3)

CST (cell/berm) N/A N/A 50% 50% 55% 1.69 0.57

CST (beach) 2.50% 6.60% 50% 50% 55% 1.51 0.75

WT (beach) 1.50% 6.60% 50% 50% 47.10% 1.51 0.75

TT (on-spec) (4) 0.50% 3.00% 30% 70% 45.00% 0.85 2.12

TT (off-spec) (4) 0.05% 0.05% 50% 50% 20.00% 0.85 2.12

NST (on-spec) (4) 1.00% 4.00% 20% 80% (2) 1.62 0.64

NST (off-spec) (4) 1.50% 5.00% 50% 50% (2) 1.55 0.71

TSRU 0.10% 10% 40% 60% 11.8% (1) 0.93 1.85

MFT N/A N/A N/A N/A N/A 0.37 5.63

(1) - Density varies based on Plant Feed. Generalized average value shown(2) - Slurry density depends on Sand to Fines (SFR) recipe and quality of TT/MFT feedstock to produce NST(3) - Void ratio is calculated from the dry density to determine volume of tailings deposited(4) - On-spec and Off-spec are terms used to determine the successful deposition of the engineered tailings product


- 53 - Appendices


APPENDIX E - TAILINGS PROCESS FLOW DIAGRAMS

Figure E.1: ETDA Process Flow Diagram

TT DDA1(ETDA)

Sand Cell(ETDA)

Thin Fine Tailings

Extraction Tailings

Primary Cyclones

Thickener

Warm Water to Process

Water to Process

Whole Tailings and Bypass Tailings

Thickener Tailings (TT)

Tailing Pump Box

InfrastructureTailings StreamBeginning of Tailings Process

TT DDA Splitter Dyke


- 54 - Appendices


Figure E.2: Process Flow Diagram

Extraction Tailings

Cyclones

Tailing Pump Box

Thickener

In-Pit DDA

In-pit Fluid Cell

Coagulant

Water andThin Fine Tails (TFT)Coarse

Sand

Water To Process

NonSegregatingTailings

Warm Water To Process

Fine Sand

InfrastructureTailings StreamBeginning of Tailings Process

MFT


- 55 - Appendices


Figure E.3: DDA Development Schedule

Q4

DDA2 – Winter Site DevelopmentOperates Nov – Feb 2011+

DDA2 – Summer Site DevelopmentContingency Operating ScheduleOperates July – Oct 2012Operates Mar – Oct 2013+

Tree Clearing

2011

Dewatering

Muskeg & Soil Salvage

2010 2012Q1 Q2 Q3 Q4 Q1 Q2 Q3

Infrastructure and Earthworks

Operation Nov 2011 – Feb 2012 Winter Operation

Tree Clearing

Dewatering

Muskeg & Soil Salvage

Infrastructure and Earthworks

Operation July 2012

Q4


- 56 - Appendices


Figure E.4: DDA1 & DDA2 Operating Philosophy

TT 2011Jan – Oct 2011

Month On / Month Off DDA1 & Sand Cell1 (50% / 50%)

Nov 2011 – Feb 2012DDA2100%

TT 2012+Nov 2012 – Feb 2013

DDA2100%

Mar – Oct 2012+DDA1100%

DDA2Contingency

MFT 2014+Centrifuge Cake

DDA1100% DDA2

ContingencyExpand DDA2Contingency

Mechanically Amend DDA1 & DDA2 deposits during off cycles to grain strength as per ERCB requirements


- 57 - Appendices


2011 DDA1 is availableTT 2011+Centrifuge Cake Q2 2014+

2011 Q4 DDA2 ‘winter operation’ is availableTT 2011+ (Nov – Feb)

2012 Q2 DDA2 ‘summer operation’ is availableContingency:TT Q2 2012+Centrifuge Q2 2014+

Figure E.5: DDA Availabilities and Material Types


- 58 - Appendices


APPENDIX F - ETF 3D GEOMETRICAL MODEL

Figure F.1: December 2012

Documents

· 2012-10-02 · APPENDIX C - ENGINEERING DESIGN ... TABLE D.4: BASELINE FOR MINE AND TAILINGS STRUCTURES JANUARY ... Directive