!( Residential Receptor

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07699-00(MISC001)GIS-WA422 POR5 POR3 POR2 POR4 POR1 Source: MNR NRVIS, 2011. Produced by CRA under licence from Ontario Ministry of Natural Resources, Queen's Printer 2012 Lambton Landfill Expansion ² Meters 0 100 200 400 600 1:20,000 UTM Zone 17N, NAD 3 Legend Noise Study Area Alternative 1 Alternative 2 Residential Receptor 50 dba 45 dba Attenuated Facility Only Noise Contours - Daytime Project 60317065 Figure 4-23 4-22

07699-00(MISC001)GIS-WA423 POR5 POR3 POR2 POR4 POR1 Source: MNR NRVIS, 2011. Produced by CRA under licence from Ontario Ministry of Natural Resources, Queen's Printer 2012 Legend ² Noise Study Area Residential Receptor Alternative 1 50 dba Alternative 2 45 dba Meters 40 dba 0 100 200 400 600 1:20,000 UTM Zone 17N, NAD 3 Lambton Landfill Expansion Attenuated Facility Only Noise Contours - Nighttime Project 60317065 Figure 4-23 4

Chapter Four Description of the Environment Potentially Affected by the Undertaking

LEGEND Alternative 1 Alternative 2 1.5 km Radius From Operational Area KEY PLAN (NTS) WAUBUNO RD SITE LOCATION PETROLIA LINE NOTES: 1. Orthophoto provided by First Base Solutions, 2010. 0 0.25 0.5 1 Kilometers GEOLOGY AND HYDROGEOLOGY STUDY AREA RO KEBY LINE ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE CLEAN HARBORS CANADA INC., TELFER RD BRIG DEN RD Project # 1300021 Drawn By: TFB Fig: True North I 4-24 4-25 Approx. Scale: 1:30,000 Date:

Chapter Four Description of the Environment Potentially Affected by the Undertaking

LAKE HURON LEGEND Hamilton Group; Limestone, Dolostone, Shale Port Lambton Group; Shale USA +U Kettle Point Formation; Shale Borehole Advanced by Ontario Geological Survey (192 to 194) Surface Water Features Alternative 1 Alternative 2 KP-27 +U 1.5 km Radius From Operational Area ST. CLAIR RIVER +U KP-25 NOTES: 1. Bedrock Geology Data from Ontario Geological Survey, 1:250,000 Scale Bedrock Geology of Ontario; Ontario Geological Survey, Miscellaneous Release Data 126 - Revision 1 (2011). 2. Borehole Locations Approximate. 0 4 +U OGS-2-1 +U KP-24 Project # 1300021 Drawn By: TFB Fig: Kilometers BEDROCK GEOLOGY WITHIN LAMBTON COUNTY ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE CLEAN HARBORS CANADA INC., True North I 4-26 4-25 Approx. Scale: 1:210,000 Date:

130 160 175 140 LEGEND BEDROCK TOPOGRAPHY (masl) 135 125 140 130 135 145 140 160 170 160 150 145 150 150 150 160 175 140 150 160 165 175 170 15 10 175 135 125 125 130 135 140 140 145 145 130 140 130 120-125 USA 145 160 165 125-130 130-135 135-140 140-145 145-150 150 - - 160 160-165 165-170 170-175 ST. CLAIR RIVER 175-10 10-15 Inferred Bedrock Elevation Contour (masl) Surface Water Features Alternative 1 135 150 150 165 175 170 Alternative 2 1.5 km Radius From Operational Area NOTES: 1. Bedrock Topography Data from Bedrock Topography and Overburden Thickness Mapping, Southern Ontario; Ontario Geological Survey, Miscellaneous Release Data 207 (2006). 0 2.5 5 135 150 140 135 145 135 140 145 160 170 10 10 175 10 15 175 Project # 1300021 Kilometers BEDROCK TOPOGRAPHY ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE CLEAN HARBORS CANADA INC., True North I 140 175 165 160 10 15 Drawn By: TFB Approx. Scale: 4-26 Fig: 4-27 1:150,000 165 135 130 130 140 150 170 15 Date:

LEGEND OVERBURDEN THICKNESS (m) ST. CLAIR RIVER USA 0-5 5-10 10-15 15-20 20-25 25-30 30-35 35-40 40-45 45-50 50-55 55-60 60-65 60-65 Surface Water Features Alternative 1 Alternative 2 1.5 km Radius From Operational Area NOTES: 1. Overburden Thickness Data from Bedrock Topography and Overburden Thickness Mapping, Southern Ontario; Ontario Geological Survey, Miscellaneous Release - Data 207. 0 2.5 5 Kilometers OVERBURDEN THICKNESS ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE CLEAN HARBORS CANADA INC., Project # 1300021 Drawn By: TFB True North I 4-27 Fig: 4-2 Approx. Scale: 1:150,000 Date:

LEGEND Alluvium (Young Stream Deposits); Sand, Silt and Clay Organic Deposits; Peat, Muck, Marl Glaciolacustrine Deposits; Clay with Silt and Fine Sand Glaciolacustrine Deposits; Sand, Silt and Minor Gravel USA Alluvium (Old River Deposits); Sand, Silt and Clay St. Joseph Till; Clayey Silt Till Rannoch Till; Clayey Silt to Sandy Silt Till Surface Water Features Alternative 1 Alternative 2 1.5 km Radius From Operational Area ST. CLAIR RIVER NOTES: 1. Surficial Geology Data from Surficial Geology of Southern Ontario; MRD 12-Revised, Ontario Geological Survey (2010). 0 2.5 5 Kilometers Project # 1300021 Drawn By: TFB SURFICIAL GEOLOGY ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE CLEAN HARBORS CANADA INC., Fig: True North I 4-29 4-2 Approx. Scale: 1:150,000 Date:

TW47-00D TW22-99D PETROLIA LINE TW40-99D TW47-00D TW39-99D TW22-99D TW35-94-I(D) TW36-94-I(D) TW32-94-I TW32-94-II(D) TW56-11D TW46-99D PW1-N OW35-05D PW2-S(R11) OW15-3 15 OW17-3 OW16-3 TW53-03D OW2-92 OW1-92 TW54-09D OW1-3 TW45-99D OW32-90D TW33-94-I(D) TW34-94-I(D) TW37-94-I(D) TW30-99D TW4-00D OW10-6 TW57-11D TW41-99D TW43-99D TW49-00D TW59-13D TW60-13D TW61-13D LEGEND KEY PLAN (NTS) TW36-94-I(D) TW32-94-I TW32-94-II(D) TW56-11D TW40-99D TW39-99D TW46-99D PW1-N OW35-05D TW60-13D PW2-S(R11) TW61-13D OW15-3 OW16-3 OW17-3 TW53-03D OW2-92 OW1-92 TW54-09D TW59-13D TW35-94-I(D) OW1-3 TW45-99D OW32-90D TW33-94-I(D) TW34-94-I(D) TW37-94-I(D) TW30-99D TW4-00D OW10-6 TW57-11D TW41-99D TW43-99D TW49-00D TW55-09D NOTES: 1. AIRPHOTO PRODUCED BY FIRST BASE SOLUTIONS, (2010). 0 250 500 METERS BEDROCK SURFACE TOPOGRAPHY LAMBTON FACILITY ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE LAMBTON FACILITY LANDFILL True North Project #1300021 Drawn by: SSL Fig: 4-30 4-29 Approx. Scale: 1:10,000 Date: TW55-09D TW55-09D (APPROX. 200 m OFF PLAN - SEE INSET) 161.4 MONITORING WELL LOCATION AND ELEVATION OF TOP OF BEDROCK (masl). ALTERNATIVE 1 ALTERNATIVE 2 CLEAN HARBORS CANADA, INC.,

TW47-00D TW22-99D PETROLIA LINE 40 41 TW47-00D TW22-99D TW35-94-I(D) TW36-94-I(D) TW32-94-I TW32-94-II(D) TW56-11D TW39-99D TW40-99D TW46-99D PW1-N OW35-05D OW15-3 OW17-3 OW16-3 41 TW53-03D OW2-92 OW1-92 TW54-09D OW1-3 TW45-99D OW32-90D TW33-94-I(D) TW34-94-I(D) TW37-94-I(D) TW30-99D TW4-00D 42 OW10-6 TW57-11D TW41-99D TW43-99D 42 TW49-00D TW59-13D TW60-13D TW61-13D LEGEND KEY PLAN (NTS) PETROLIA LINE 40 41 TW36-94-I(D) TW32-94-I TW32-94-II(D) TW56-11D TW40-99D TW39-99D TW46-99D PW1-N OW35-05D TW60-13D TW61-13D OW15-3 OW16-3 OW17-3 41 TW53-03D OW2-92 OW1-92 TW54-09D TW59-13D TW35-94-I(D) OW1-3 TW45-99D OW32-90D TW33-94-I(D) TW34-94-I(D) TW37-94-I(D) TW30-99D TW4-00D 42 OW10-6 TW57-11D TW41-99D TW43-99D 42 TW49-00D TW55-09D NOTES: 1. AIRPHOTO PRODUCED BY FIRST BASE SOLUTIONS (2010). 2. PW2-S(R11) IS NOT INCLUDED, WELL INSTALLED DURING CLAY CAP CONSTRUCTION. 0 250 500 METERS OVERBURDEN THICKNESS LAMBTON FACILITY ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE LAMBTON FACILITY LANDFILL True North Project #1300021 Drawn by: SSL Fig: 4-31 4-30 Approx. Scale: 1:10,000 Date: TW55-09D TW55-09D (APPROX. 200 m OFF PLAN - SEE INSET) 50.5 (12.1) MONITORING WELL LOCATION AND OVERBURDEN THICKNESS (EXCLUDING FILL) AND FILL THICKNESS (IF APPLICABLE) IN METRES. ALTERNATIVE 1 ALTERNATIVE 2 CLEAN HARBORS CANADA, INC.,

NOTES: Revised from Jagger Hims Limited (1996). CONCEPTUAL MODEL OF REGIONAL GEOLOGY/HYDROGEOLOGY ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE CLEAN HARBORS CANADA, INC., Project: 1300021 Figure: 4-32 7-2 Drawn By: SSL Date: Revised: DEC. May 17, 2013 2014

Chapter Four Description of the Environment Potentially Affected by the Undertaking

2 TW59-13S 2 TW35-94-II(S) TW22-94S TW39-99I TW45-99S TW44-99S TW21-94-II(S) TW39-99S LM-11 TW61-13S TW61-13I LM1-11 LM9-11 LM7-11 TW15-94 CELL 17 LM6-11 PRE- 196 LANDFILL AREA TW43-99S PETROLIA LINE TW40-99S CELL 1 LM3-11 LM10-11 LM2-11 TW42-99S LM5-11 CELL 16 LM4-11 TW32-94-IV(S) TW41-99S TW46-99I TW46-99S OW35-90S TW53-03S OW32-90S TW30-94S TW5-11S TW55-09S (APPROX. 500 m OFF PLAN - SEE INSET) TW55-09S TW36-94-II(S) TW56-11S TW37-94-II(S) TW57-11S TW39-99I TW21-94-II(S) TW39-99S PETROLIA LINE TW40-99S TW32-94-IV(S) TW46-99I TW46-99S TW5-11S TW36-94-II(S) TW56-11S LEGEND TW43-99S TW52-02B TW52-02A LM1-11 OVERBURDEN MONITORING WELL SOUTH BERM MONITORING WELL SOUTH BERM WELL MONITORED FOR CHLORIDE AND SODIUM ON A SEMI-ANNUAL BASIS LM9-11 LM10-11 LEACHATE MONITORING WELL TW22-94S LM-11 TW61-13S TW61-13I LM7-11 CELL 1 OW35-90S TW55-09S (APPROX. 620 m OFF PLAN) KEY PLAN CELL 17 LM6-11 TW53-03S ROKEBY LINE LM5-11 2 TW59-13S TW35-94-II(S) 2 TW45-99S LM3-11 CELL 16 OW32-90S ROKEBY LINE LM4-11 LM1-11 NOTES: 1. ORTHOPHOTO PRODUCED BY FIRST BASE SOLUTIONS, (2010). 2. TW35-94-II(S) IS DECOMMISSIONED AND REPLACED WITH TW59-13S IN MARCH 2013. 3. TW61-13I AND TW61-13S WERE INSTALLED ON JUNE 2013. 0 150 300 TW44-99S PRE- 196 LANDFILL AREA LM2-11 TW30-94S TW37-94-II(S) METERS LOCATION OF SHALLOW OVERBURDEN MONITORING WELLS ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE LAMBTON FACILITY LANDFILL TW15-94 TW41-99S TW57-11S CLEAN HARBORS CANADA, INC., True North Project # 1300021 TW43-99S TW42-99S Drawn by: SSL Fig: 4-32 4-33 TW55-09S (APPROX. 500 m OFF PLAN - SEE INSET) Approx. Scale: Date: 1:6,500

TW36-94-I(D) TW37-94-I(D) TW57-11D PETROLIA LINE TW47-00D TW32-94-II(D) TW40-99D TW39-99D TW56-11D TW46-99D 2 2 TW59-13D CELL 1 OW35-05D TW61-13D TW22-99D CELL 17 TW53-03D TW54-09D OW1-92 OW32-90D TW45-99D CELL 16 TW33-94-I(D) TW34-94-I(D) TW30-99D PRE- 196 LANDFILL AREA TW4-00D TW41-99D TW43-99D TW42-99D LEGEND TW43-99D PETROLIA LINE TW36-94-I(D) TW32-94-II(D) TW39-99D TW40-99D TW46-99D 2 TW59-13D 2 CELL 17 CELL 1 OW35-05D TW22-99D TW53-03D OW32-90D CELL 16 TW30-99D TW37-94-I(D) PRE- 196 LANDFILL AREA TW4-00D TW47-00D TW61-13D TW56-11D TW54-09D OW1-92 TW35-94-I(D) TW45-99D TW33-94-I(D) TW34-94-I(D) TW41-99D TW57-11D TW43-99D TW42-99D TW49-00D TW55-09D (APPROX. 500 m OFF PLAN - SEE INSET) TW55-09D ROKEBY LINE NOTES: 1. ORTHOPHOTO PRODUCED BY FIRST BASE SOLUTIONS, (2010). 2. TW35-94-I(D) IS DECOMMISSIONED AND REPLACED WITH TW59-13D IN MARCH 2013. 3. TW60-13D AND TW61-13D WERE INSTALLED ON JUNE 2013. Approx. Scale: Date: TW42-99D TW31-99-I(D) INTERFACE AQUIFER MONITORING WELL SHALE MONITORING WELL (NOT PART OF MONITORING NETWORK) DECOMMISSIONED SHALE MONITORING WELL (NOT PART OF MONITORING NETWORK) KEY PLAN Project # 1300021 Drawn by: SSL 0 150 300 Fig: METERS LOCATION OF INTERFACE AQUIFER MONITORING WELLS ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE LAMBTON FACILITY LANDFILL CLEAN HARBORS CANADA, INC., True North 4-34 4-33 1:6,500 TW55-09D (APPROX. 620 m OFF PLAN) ROKEBY LINE TW49-00D TW55-09D (APPROX. 500 m OFF PLAN - SEE INSET) TW35-94-I(D)

Chapter Four Description of the Environment Potentially Affected by the Undertaking

Chapter Four Description of the Environment Potentially Affected by the Undertaking

LEGEND CELL LIMITS SUB-CELL 3 PARAMETER PW1-N PW1-N EW1A-01 EW1B-13 SEEP LOCATION (APPROXIMATE) PURGE WELL LOCATION EXTRACTION WELL LOCATION (2001) EXTRACTION WELL LOCATION (2013) APPROXIMATE LIMIT OF EXCAVATION GRANULAR TRENCH HYDRAULIC CONTROL LAYER EW1a-01 CELL 1 EW2b-13 HYDRAULIC CONTROL DRAIN NOTES: 1. AIRPHOTO PRODUCED BY FIRST BASE SOLUTIONS (2010). 2. REMEDIAL STRUCTURE DETAILS REPRODUCED FROM CLEAN HARBORS (2000). 0 25 50 100 m SCALE PW2-S(R11) SUB-CELL 3 REMEDIAL STRUCTURE - PLAN VIEW ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE LAMBTON FACILITY LANDFILL CELL 17 Project # 1300021 Drawn by: CLEAN HARBORS CANADA, INC., LAMBTON LANDFILL FACILITY SSL True North Fig: 4-345 Approx. Scale: 1:2,500 Date:

200 195 CLAY CAP ELEVATION (masl) 190 15 10 WASTE CLAY BACKFILL CLAY LINER WASTE 175 NATIVE CLAY TILL LEGEND SUB-CELL 3 REMEDIAL STRUCTURE - CROSS SECTION ENVIRONMENTAL ASSESSMENT FOR THE EXPANSION OF THE CLEAN HARBORS CANADA, INC., Drawn by: SSL Fig: 4-36 4-35 Project # 1300021 Date:

Chapter Four Description of the Environment Potentially Affected by the Undertaking

Chapter Four Description of the Environment Potentially Affected by the Undertaking

Legend Supplementary Surface Water Quality Monitoring Locations! Existing Lambton Facility Roads Major Road Local Road Water Features Intermittent Stream Permanent Stream Waterbody Watershed Boundaries Bear Cr. N. Syderham R. Upper St. Clair R. Waddel I - Perch - Errol - Aberarder Highland - Hickory - Shashaw Mandaumin Rd Highway 402 London Line London Rd Confederation Line Modeland Rd Mandaumin Rd Churchill Rd Indian Rd Vidal St Plank Rd Petrolia Line Hill St St Clair Pky Kimball Rd St Clair Pky Courtright Line Highway 40 Site Location Basemapping from Ontario Ministry of Natural Resources Orthophotography: ² Metres 0 200 400 00 1,200 1,600 Shiloh Line 1:34,000 UTM Zone 17N, NAD 3 This drawing has been prepared for the use of AECOM's client and may not be used, reproduced or relied upon by third parties, except as agreed by AECOM and its client, as required by law or for use by governmental reviewing agencies. AECOM accepts no responsibility, and denies any liability whatsoever, to any party that modifies this drawing without AECOM's express written consent. Norwood Drain Waterworks Rd e e k Be ar Cr Mandaumin Rd Courtright Line Mennen Drain Moore Line e e k C r M a c D on ald Brigden Rd! STN STN 1! STN 2!! STN 3! STN 4 McBean Drain Telfer Rd! STN 5! STN 6! STN 7 STN 9! Lambton Landfill Expansion Supplementary Surface Water Quality Monitoring Locations Project 60317065 Figure 4-37 Petrolia Line C reek Waubuno Rd Courtright Line Rokeby Line B ur ton Petrolia Line Kimball Rd Kimball Rd Path: \\caglp1fp002\aecomprjs\60272902\000-cadd\050 GIS WIP\Maps\Working\EA Report - 2012\60272902_Fig2_SurfQuality_MonitoringLoc.mxd

Chapter Four Description of the Environment Potentially Affected by the Undertaking