CONQUEST ENGINEERING LTD.

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1 CONQUEST ENGINEERING LTD. Geotechnical and Materials Engineers Concrete Technology, Blasting Consultants Construction Quality Assurance / Quality Control 8 Bluewater Road, Bedford, NS BB J6 Phone (9)85-7 Fax (9)85-6 February 5, Mr. Leonard Avery, P.Eng. Heritage Gas -8 Brownlow Avenue Dartmouth, NS BB Y Dear Mr. Avery, Re: Geotechnical Investigation, Phase New Glasgow Pipeline Pictou County, Nova Scotia This is our report on the geotechnical investigation conducted for Phase (Boreholes, 8C, 9,, and ) for the proposed Natural Gas Pipeline in Pictou County, Nova Scotia. The subsurface conditions in the boreholes consisted of rootmat over compact to dense sandy clay till then bedrock (mudstone / sandstone). Bedrock was encountered at each borehole. Groundwater was encountered in Boreholes, 8C, and 9 at the time of drilling. The presence of bedrock at most borehole locations will complicate the proposed directional drilling. Table A: Summary of Findings Thickness of Borehole Rootmat/Topsoil Thickness of Till Bedrock Depth Groundwater Depth* BH..8. encountered at. m BH 8C... encountered at 5.8 m BH encountered at. m BH BH..7. * encountered at the time of drilling. Actual groundwater depth may vary. groundwater not encountered groundwater not encountered Please contact us if you require additional information. Thank you, Glenn Graham, P.Eng. Geotechnical Engineer ggraham@conquest-eng.com Project No. 5- Saint John Moncton Bedford Fredericton Cornerbrook

2 TABLE OF CONTENTS page. INTRODUCTION.... SITE DESCRIPTION AND GEOLOGY.... SUBSURFACE CONDITIONS.... CLOSURE... TABLES Table A: Summary of Findings... APPENDICES APPENDIX A: BOREHOLE RECORDS, 8C, 9,, FIGURE : GRAIN SIZE DISTRIBUTION FIGURE : ATTERBERG LIMITS DRAWING NO. BOREHOLE LOCATIONS Saint John Moncton Bedford Fredericton Cornerbrook Page i

Proposed Natural Gas Pipeline, Phase - Pictou County, NS February 5, Leonard Avery P.Eng. Heritage Gas Project # 5-.

The purpose of this investigation was to evaluate the subsurface conditions on the site, and to provide a factual report of our findings.

Boreholes 8C, 9, and are located along the TransCanada 6 right of way. Borehole is located off Abercrombie Road, near TC6, Exit. Figure A shows an aerial view of Borehole.

3 Proposed Natural Gas Pipeline, Phase - Pictou County, NS February 5, Leonard Avery P.Eng. Heritage Gas Project # 5-. INTRODUCTION We have conducted Phase of the Geotechnical Investigation for the proposed natural gas pipeline in Pictou County, NS at the request of Heritage Gas. The purpose of this investigation was to evaluate the subsurface conditions on the site, and to provide a factual report of our findings.. SITE DESCRIPTION AND GEOLOGY Borehole is located along the power transmission line right of way near West River East Side Road in Alma, NS. Boreholes 8C, 9, and are located along the TransCanada 6 right of way. Borehole is located off Abercrombie Road, near TC6, Exit. Figure A shows an aerial view of Borehole. Figure B shows an aerial view of Borehole 8C. Figure C shows an aerial view of boreholes 9 through. The borehole location along the power transmission line right of way (BH) is predominantly cleared with some overgrown brush (alders) present. The borehole locations along TransCanada 6 and Abercrombie Road were predominantly wooded (alders/small trees). The principal soil type is glacial till over bedrock (mudstone / sandstone) which is part of the Middle River Formation. Figures A to C: Borehole locations Saint John Moncton Bedford Fredericton Cornerbrook Page

4 Proposed Natural Gas Pipeline, Phase - Pictou County, NS February 5, Leonard Avery P.Eng. Heritage Gas Project # 5-. SUBSURFACE CONDITIONS The field program consisted of five boreholes (BH, BH8C, BH9, BH, and BH) completed on January to January,. The borehole locations are shown in Figures A to C (Figure in the appendix is a complete location plan). The boreholes were drilled using a track mounted drill rig. Representative samples were taken during the field work and the conditions at the boreholes were logged in detail. The soil and groundwater conditions encountered at the site are described in detail on the appended Borehole Records and summarized in the following paragraphs and Table A. The subsurface conditions in the boreholes consisted of rootmat over compact to dense sandy clay till then bedrock (mudstone / sandstone). Bedrock was encountered at each borehole. Groundwater was encountered in Boreholes, 8C, and 9 at the time of drilling. Table A below lists the depths for each layer encountered. Grainsize analysis of two samples from Borehole showed an average of % gravel, % sand, and 68% fines. One sample from Borehole 8C showed % gravel, % sand, and 8% fines. Moisture content analysis from Borehole ranged from % to %. Moisture content analysis from Borehole 8C was 5%. Atterberg Limits of two samples tested showed the fines portion of the grainsize analysis to be clay. Bedrock consists of a weak mudstone (easily augered) or medium strong sandstone. Compressive strength analysis of the bedrock for six samples tested from Borehole 8C ranged from 8. MPa, to. MPa, with an average of. MPa. Table A: Summary of Findings Thickness of Borehole Rootmat/Topsoil Thickness of Till Bedrock Depth BH..8. BH 8C... BH BH BH..7. * encountered at the time of drilling. Actual groundwater depth may vary. Groundwater Depth* encountered at. m encountered at 5.8 m encountered at. m groundwater not encountered groundwater not encountered Saint John Moncton Bedford Fredericton Cornerbrook Page

Some variation between sampling locations should be expected. If the conditions encountered are significantly different than described in this report, we request that we be notified immediately.

5 Proposed Natural Gas Pipeline, Phase - Pictou County, NS February 5, Leonard Avery P.Eng. Heritage Gas Project # 5-. CLOSURE If there are changes to the proposed work we require that we be notified to allow for review of our recommendations. A field investigation is a limited sampling of a site. Some variation between sampling locations should be expected. If the conditions encountered are significantly different than described in this report, we request that we be notified immediately. This report was completed for the sole benefit of Heritage Gas. Any other person or entity may not rely on this report without the express written consent of Conquest Engineering Ltd. This report was written by Glenn Graham, P.Eng. and reviewed by Bruce MacNeil, P.Eng. Glenn Graham, P.Eng Geotechnical Engineer ggraham@conquest-eng.com R. Bruce MacNeil, P.Eng Senior Geotechnical Engineer bmacneil@conquest-eng.com Saint John Moncton Bedford Fredericton Cornerbrook Page

6 APPENDIX A

7 Conquest Engineering Ltd. BOREHOLE RECORD Project Name: Proposed Natural Gas Pipeline - Phase Project No.: 5- Client: Heritage Gas Location: Pictou County Water Level Date: Jan, Borehole No.: Page: of Date Drilled: Jan, Datum: Assumed Depth Water Level Sample Type Sample Number Recovery (mm) N Value or RQD % Symbols SOIL AND/OR ROCK DESCRIPTION Elevation Moisture Content (%) Wp ---O--- WL SPT (N) Blows/mm ROOTMAT/TOPSOIL TILL: Compact to dense reddish brown sandy clay with gravel - trace cobbles 6 - some cobbles/boulders inferred by auger perfomance 5 9 BEDROCK: Mudstone mm mm 8 9

8 Conquest Engineering Ltd. BOREHOLE RECORD Project Name: Proposed Natural Gas Pipeline - Phase Project No.: 5- Client: Heritage Gas Location: Pictou County Water Level Date: Jan, Borehole No.: Page: of Date Drilled: Jan, Datum: Assumed Depth Water Level Sample Type Sample Number Recovery (mm) N Value or RQD % Symbols SOIL AND/OR ROCK DESCRIPTION Elevation Moisture Content (%) Wp ---O--- WL SPT (N) Blows/mm BEDROCK: Mudstone (continued from previous) END OF BOREHOLE AT. m Groundwater at. m

9 Conquest Engineering Ltd. BOREHOLE RECORD Project Name: Proposed Natural Gas Pipeline - Phase Project No.: 5- Client: Heritage Gas Location: Pictou County Water Level Date: Jan, Borehole No.: 8C Page: of Date Drilled: Jan, Datum: Assumed Depth Water Level Sample Type Sample Number Recovery (mm) N Value or RQD % Symbols SOIL AND/OR ROCK DESCRIPTION Elevation Moisture Content (%) Wp ---O--- WL SPT (N) Blows/mm ROOTMAT/TOPSOIL TILL: Compact to dense reddish brown clay with sand 6 8 BEDROCK: Mudstone 8-mm 5-mm BEDROCK: Sandstone mm 7 HQ 5 6% 8 HQ 6 5 7% 9 HQ %

10 Conquest Engineering Ltd. BOREHOLE RECORD Project Name: Proposed Natural Gas Pipeline - Phase Project No.: 5- Client: Heritage Gas Location: Pictou County Water Level Date: Jan, Borehole No.: 8C Page: of Date Drilled: Jan, Datum: Assumed Depth Water Level Sample Type Sample Number Recovery (mm) N Value or RQD % Symbols SOIL AND/OR ROCK DESCRIPTION Elevation Moisture Content (%) Wp ---O--- WL SPT (N) Blows/mm END OF BOREHOLE AT. m

11 Conquest Engineering Ltd. BOREHOLE RECORD Project Name: Proposed Natural Gas Pipeline - Phase Project No.: 5- Client: Heritage Gas Location: Pictou County Water Level Date: Jan, Borehole No.: 9 Page: of Date Drilled: Jan, Datum: Assumed Depth Water Level Sample Type Sample Number Recovery (mm) N Value or RQD % Symbols SOIL AND/OR ROCK DESCRIPTION Elevation Moisture Content (%) Wp ---O--- WL SPT (N) Blows/mm ROOTMAT/TOPSOIL TILL: Compact to dense reddish brown silty sand to sandy clay with gravel 5 6 BEDROCK: Mudstone - alternating layers of mudstone, siltstone, and sandstone 5 5-5mm 6 5-5mm 7 8 9

12 Conquest Engineering Ltd. BOREHOLE RECORD Project Name: Proposed Natural Gas Pipeline - Phase Project No.: 5- Client: Heritage Gas Location: Pictou County Water Level Date: Jan, Borehole No.: 9 Page: of Date Drilled: Jan, Datum: Assumed Depth Water Level Sample Type Sample Number Recovery (mm) N Value or RQD % Symbols SOIL AND/OR ROCK DESCRIPTION Elevation Moisture Content (%) Wp ---O--- WL SPT (N) Blows/mm END OF BOREHOLE AT.7 m Groundwater at. m

13 Conquest Engineering Ltd. BOREHOLE RECORD Project Name: Proposed Natural Gas Pipeline - Phase Project No.: 5- Client: Heritage Gas Location: Pictou County Water Level Date: Jan, Borehole No.: Page: of Date Drilled: Jan, Datum: Assumed Depth Water Level Sample Type Sample Number Recovery (mm) N Value or RQD % Symbols SOIL AND/OR ROCK DESCRIPTION Elevation Moisture Content (%) Wp ---O--- WL SPT (N) Blows/mm ROOTMAT/TOPSOIL TILL: Compact to dense reddish brown sandy clay with gravel mm BEDROCK: Mudstone - alternating layers of mudstone and sandstone 7 8 END OF BOREHOLE AT 7.6 m 9

14 Conquest Engineering Ltd. BOREHOLE RECORD Project Name: Proposed Natural Gas Pipeline - Phase Project No.: 5- Client: Heritage Gas Location: Pictou County Water Level Date: Jan, Borehole No.: Page: of Date Drilled: Jan, Datum: Assumed Depth Water Level Sample Type Sample Number Recovery (mm) N Value or RQD % Symbols SOIL AND/OR ROCK DESCRIPTION Elevation Moisture Content (%) Wp ---O--- WL SPT (N) Blows/mm ROOTMAT/TOPSOIL SAND: Compact reddish brown silty clayey sand with gravel - trace organics 55 9 TILL: Compact reddish brown clay - trace sand 55 6 BEDROCK: Mudstone 5 5-5mm mm 7 END OF BOREHOLE AT 7. m 8 9

PERCENT FINER BY WEIGHT U.S. STANDARD SIEVE OPENING IN INCHES U.S. STANDARD SIEVE NUMBERS 5.5 / / /8 8 6 5 9 8 7 6 5.. GRAIN SIZE IN MILLIMETERS Sample No.

15 PERCENT FINER BY WEIGHT U.S. STANDARD SIEVE OPENING IN INCHES U.S. STANDARD SIEVE NUMBERS 5.5 / / / GRAIN SIZE IN MILLIMETERS Sample No. Depth Classification w% Cu Cc % Gravel % Sand BH-, Sa. Sandy CLAY % NA NA. 8.6 BH- Sa. Sandy CLAY % NA NA 9.. BH 8C Sa. CLAY with sand 5% NA NA.. #DIV/! #DIV/! #DIV/! #DIV/! #DIV/! #DIV/! #DIV/! #DIV/! #DIV/! #DIV/! % Silt and Clay 68.% 66.8% 8.9% #DIV/! #DIV/! Project: Job No.: Date: Pipeline Phase New Glasgow N.S. 5- Location: Borehole Locations -Feb- Notes: SIEVE ANALYSIS

16 Plasticity Index (Ip) CONQUEST ENGINEERING LTD. 575 Crown St, Saint John, N.B., EL 5E9 Phone: (56) Fax: (56) Baig Blvd., Moncton, N.B., EE H8 Phone: (56) Fax: (56) Bluewater Road, Bedford, NS, BB J6 Phone: (56) Fax: (56) Client Name: Heritage Gas Job No.: 5- Project Name: New Glasgow Pipeline Phase Date: -Feb- Material Tested: BH Sa. Tested by: HB Site Sampled: Proposed Pipeline Route 6 Plasticity Chart 5 CL CH A-line 7 CL CL-ML ML ML or OL MH or OH Liquid Limit (WL) Borehole Depth Classification USCS Symbol Liquid Limit Plasticity Index BH, Sa.6-5. Fat CLAY CH 6 5 BH9, Sa.5 -. Lean CLAY CL 8

17 New Glasgow Steel Pipeline Proposed Boreholes December, Hole ID Feature Hole Location Access via Tree / Alder clearing * Approx. Mimimum Hole Depth Northing ** Easting ** BH Stream crossing West side BH Stream crossing East side BH BH Hwy, Stream, Salem Hill Hwy, Stream, Salem Hill 5m west of Hwy 5m east of Hwy Woods Rd off east side of "West River East Side Rd" to powerline access road Woods Rd off north side of Tanner Hill Rd, up to powerline, then west on powerline access road Woods Rd off north side of Tanner Hill Rd, up to powerline, then east on powerline access road Driveway off east side of "Hwy " (under south wire of powerline).5m xm alders m x 5m alders m x m alders None required BH 5 Hwy, Stream, Salem Hill m east of Hwy (Top of hill south side of powerline) 6 BH 6 Middle River West side of River 7 BH 7 Middle River East side of River 8 BH 8A CB&CNS Railway 7m east of Granton Rd railway crossing Farmers field access off west side of Macdonald Hill Rd Civic 577 driveway off north side Hwy, after white barn turn right, go 75m, follow pink ribbon Daisy Lane off north side Hwy, left at cemetery, right onto driveway, go past mini home, stay right Possibly see if CB&CNS will allow to use tracked vehicle down beside railway tracks.5m x 5m alders m x 5m alders, few small trees m x m alders m x m alders, few small trees BH 8C Stream crossing West side Hwy 6, north of pond Woods Rd off west side Hwy 6.5m x m alders BH 9 Stream crossing BH BH Hwy 6 & CB&CNS Railway crossings Abercrombie Rd & Begg Brook West side Hwy 6, south side of Begg Brook West side Hwy 6, north side of CB&CNS Railway in grassy area South side of Abercrombie Rd, west side CB&CNS Railway, across from Northern Pulp truck entrance just inside tree line Woods Rd off west side Hwy 6, follow along tree line, turn in and follow flags.5m x m alders 5556 Off Hwy 6 on ramp, Exit None required South side of Abercrombie Rd, between Exit off ramp and Railway crossing 5m x m * NOTE : Approximate mimimum borehole depth is given as an estimate of the variance in elevation between the ground surface at the borehole location and the low point of the feature that is being crossed added to the numbers as shown in section 6.. of t ** NOTE : Northing and Easting refers to the deg MTM, ATS 77 projection.

CONQUEST ENGINEERING LTD.

CONQUEST ENGINEERING LTD. Geotechnical and Materials Engineers Concrete Technology, Blasting Consultants Construction Quality Assurance / Quality Control 8 Bluewater Road, Bedford, NS BB J6 Phone (9)85-7