VOLUME IIB ATTACHMENT 6B Geotechnical Data Report

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ROVER PIPELINE PROJECT Supplement Resource Report 6 –Geological Resources

VOLUME IIB

ATTACHMENT 6B

Geotechnical Data Report

June 2015

Expected Geotechnical Conditions

Report for Geohazards Search Proposed Rover Pipeline Project (PCS # 14138) June 4, 2015 Terracon Project No. N4149328

Prepared for: Project Consulting Services, Inc.

Prepared by: Terracon Consultants, Inc. Columbus, Ohio

EXPECTED GEOTECHNICAL CONDITIONS Report for Geohazards Search Proposed Rover Pipeline (PCS #14138) West Virginia, Pennsylvania, Ohio & Michigan Terracon Project Number N4149328 June 4, 2015

1.0 INTRODUCTION

Terracon has completed a review of publically available geohazard data and our records in the vicinity of the proposed alignment to render this preliminary opinion of expected geohazard conditions.

1.1 Project Location and Description

Item Description Project description Geohazard Desktop Study Project location Pipelines crossing WV, PA, OH and MI Pipeline alignment Ten (10) Laterals with Alternative Alignments

2.0 PROJECT INFORMATION

The following project information was available at the time this report was prepared. We understand that if changes to the project occur, updated analysis and recommendations will be provided upon request.

2.1 Desktop Study Scope of Services

This desktop study included a review of publically available data collected and made available by public entities (i.e. federal, state, and local agencies) and data-mining of past Terracon projects within the vicinity of the subject project. A project geodatabase was compiled to organize the above mentioned data, including information from the publically available sources as noted in the following section.

A geodatabase was utilized as input for GIS mapping and to generate geotechnical- themed strip maps of the pipeline corridor; the results of this desktop study were used to prepare a desktop assessment of geotechnical conditions that may affect construction and/or pipeline integrity.

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Note: Field reconnaissance, subsurface exploration, laboratory testing and geotechnical analyses are beyond the scope of this study. However, we are currently in the process of completing an aerial survey on behalf of Project Consulting Services®, Inc. (PCS) to review ground surface conditions in order to observe for surficial indicators of ground movement and identify areas of interest (AOI) for further site assessment. After discussion with the PCS representatives, Terracon will coordinate and arrange ground truth site visits of such areas of concern. Terracon teams will be dispatched to the project sites to conduct visual site reconnaissance with the objective of confirming or refuting the presence of slope instability concerns and baseline visual assessment. The objective will be to evaluate the need for further geotechnical study, as needed to develop methods to remediate the slope instability and/or mitigate impacts to construction and/or service of the pipeline.

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2.2 Information Sources

The proposed alignment and general information about the project were provided by PCS representative, Jeff Richardson, P.E.

Information utilized as a part of our review included the following public records:

Ohio: Ohio Department of Natural Resources Geographic Information Systems Geological Survey Mineral Resources Ohio Department of Transportation

Pennsylvania: Pennsylvania Department of Conservation and Natural Resources Pennsylvania Department of Environmental Protection Pennsylvania Spatial Data Access

West Virginia: West Virginia GIS Technical Center West Virginia Geological and Economic Survey (WVGES)

Michigan: Michigan Department of Technology, Management, and Budget GIS Open Data Portal

We complemented the public records review with a query of Terracon’s internal database which is comprised of historic records derived from projects conducted in the vicinity of the project.

2.3 Project Description

The proposed construction of approximately 511 miles of pipeline consists of ten (10) pipeline segments through four (4) states. Branches of the alignments begin in Pennsylvania and West Virginia and connect to a mainline running through Ohio and terminating in Michigan. Exhibit I shows the alignments of these pipeline laterals. In the following table, the mileage for each lateral,

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based on the kmz file provided, is presented with a breakout of the distances through each state. In addition, the orientation of the straight line mileage along each named lateral is noted.

LATERAL TOTAL LENGTH LENGTH LENGTH LENGTH ORIENTATION NAME LENGTH IN WV IN OH IN PA IN MI (Miles) (Miles) (Miles) (Miles) (Miles) Berne 3.75 3.74 S-N Burgettstown 51.50 5.27 36.02 10.21 E-W Cadiz 3.52 3.51 E-W CGT 5.70 5.70 W-E Clarington 32.96 32.95 S-N Supply 209.66 209.62 S-N Connector/ Mainline Majorsville 23.83 11.28 12.55 E-W Market 99.94 27.38 72.66 S-N Seneca 25.74 25.73 W-E Sherwood 54.0 35.7 18.3 S-N 510.61 46.71 368.48 22.76 72.66

The following sections of the report present discussions on the compiled geohazard information:

• Geology and terrain traversed by the proposed pipeline corridor, • Landslides • Surface Mine Settlement • Underground Mine Subsidence • Identification of Terracon projects located within one (1)-mile radius of the project’s centerline.

2.4 Preliminary Nature

The expected geotechnical conditions presented in this report are based on a review of publically available data. Therefore, opinions derived from publically available data are contingent upon the accuracy of that information.

The scope of services for this desktop study addresses geotechnical conditions only. The scope does not include either specifically or by implication any environmental or biological (e.g.,

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asbestos, mold, fungi, and bacteria) assessment of the site or identification or prevention of pollutants, hazardous materials or conditions.

This report has been prepared for the exclusive use of our client to represent a professional assessment of the publically available geotechnical conditions for specific application to the project described above. No warranties, either express or implied, are intended or made.

3.0 EXPECTED GEOTECHNICAL CONDITIONS

3.1 Geography, Terrain, and Geology of the Proposed Pipeline Corridor

The pipeline project transverses the Appalachian Plateau Province in Ohio, Pennsylvania, and West Virginia. The pipeline then crosses the Glaciated Allegheny Plateaus in Ohio and continues into the Central Lowlands Province in central and western Ohio and Michigan.

3.1.1 Terrain of the Physiographic Provinces Through the Appalachian Plateau region in Pennsylvania, West Virginia, and Ohio, the corridor passes along a rugged, eroded plain of sedimentary rock, marked by flat-topped highlands and rounded hills. The terrain consists of landforms drained by mature-stage streams with well- developed floodplains and meanders. Typical relief for the region is several hundred feet.

As the corridor crosses north and west through Ohio, it crosses the glacial boundary and enters the Glaciated Appalachian Plateau Province. The terrain in this area is characterized by ridges and flat uplands with moderate relief. Deposits of thin drift are dissected by narrow rock-exposed steep valleys alternating with broad drift-filled stream floodplains. In some areas, hummocky glacial deposits may be encountered. These deposits may include kames, kame terraces, eskers, and bog/fens.

West of the Glaciated Appalachian Plateau, the Till Plains of the Central Lowland Province are encountered. The clayey to loamy tills of this province have low to moderate relief. Glaciation of these areas resulted in well-defined moraines, boulder belts, and flat-lying ground moraines. Stream valleys contain eroded glacial outwash deposits forming narrow dissected valleys to broad floodplains.

In northwestern Ohio, the pipeline crosses a remnant of an ancient lake plain. The Huron-Erie Lake Plain Province is a flat lying lake basin with beach ridges, bars, dunes, deltas, and clay flats. Relief is very low with the exception of a small ancient bedrock reef area.

The pipeline then continues across the northern boundary of Ohio and terminates in Michigan as it re-enters the Central Lowland Province. This region is dominated by a series of end moraines

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consisting of low ridges and much flatter outwash plains and ground moraines. The Central Lowlands of Michigan is characterized by gently rolling to hilly terrain with moderate relief.

3.1.2 Geology of the Physiographic Provinces Within the Allegheny Plateau, the surface geology is typically comprised of shallow colluvium and residuum soils underlain by claystone, coal, limestone, mudstone, shale, siltstone and sandstone bedrock. The geology along the pipeline is presented as Exhibits: A1 through A41. Within the Pennsylvanian aged rock, numerous coal beds persist through the area and were subject to extensive surface and subsurface mining. Of similar interest, the “red beds” of the Conemaugh Group and the Minford clays present a high susceptibility to landslides. The glaciated portion of the Allegheny Plateau contains thin to thick deposits of glacial tills and drift filled valleys while the Central Lowlands is comprised of Wisconsin aged clayey tills and lacustrine deposits overlying carbonate rocks. The occurrence of karst features, associated with limestone beds, is a significant concern while traversing this province in both Ohio and Michigan. The Maumee Lake Plains, containing the former “Black Swamp” region, is characterized by rich organic clay and silt tills overlying carbonate rock and shale. Surficial features include beach ridges, dunes, and lacustrine clay deposits.

3.1.3 Geologic Formations The following tables present a Summary of Geologic Rock Types Traversed by the Proposed Pipeline Corridor. These tables are segregated based on state, county and geologic formation or group. Then, for each formation or group, the anticipated dominant rock type and secondary rock types are provided.

West Virginia: CGT County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Doddridge Dunkard Group sandstone, siltstone shale, limestone, coal Monongahela Group sandstone, siltstone shale, limestone, coal

West Virginia: Sherwood Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Wetzel Dunkard Group sandstone, siltstone shale, limestone, coal Monongahela Group sandstone, siltstone shale, limestone, coal Tyler Dunkard Group sandstone, siltstone shale, limestone, coal Monongahela Group sandstone, siltstone shale, limestone, coal Doddridge Dunkard Group sandstone, siltstone shale, limestone, coal Monongahela Group sandstone, siltstone shale, limestone, coal

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Ohio: Sherwood Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Monroe Dunkard Group mudstone, shale siltstone, sandstone, limestone, coal Monongahela Group sandstone, siltstone mudstone, sandstone, limestone, coal

Ohio: Seneca Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Monroe Dunkard Group mudstone, shale siltstone, sandstone, limestone, coal Monongahela Group sandstone, siltstone mudstone, sandstone, limestone, coal Conemaugh Group siltstone, shale mudstone, sandstone, limestone, coal

Ohio: Berne Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Monroe Dunkard Group mudstone, shale siltstone, sandstone, limestone, coal Monongahela Group sandstone, siltstone mudstone, sandstone, limestone, coal Noble Dunkard Group mudstone, shale siltstone, sandstone, limestone, coal Monongahela Group sandstone, siltstone mudstone, sandstone, limestone, coal

Ohio: Clarington Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Monroe Dunkard Group mudstone, shale siltstone, sandstone, limestone, coal Monongahela Group sandstone, siltstone mudstone, sandstone, limestone, coal Belmont Dunkard Group mudstone, shale siltstone, sandstone, limestone, coal Monongahela Group sandstone, siltstone mudstone, sandstone, limestone, coal Harrison Monongahela Group sandstone, siltstone mudstone, sandstone, limestone, coal Conemaugh Group siltstone, shale mudstone, sandstone, limestone, coal

Ohio: Cadiz Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Harrison Monongahela Group sandstone, siltstone mudstone, sandstone, limestone, coal Conemaugh Group siltstone, shale mudstone, sandstone, limestone, coal

West Virginia: Majorsville Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Marshall Dunkard Group sandstone, siltstone shale, limestone, coal Monongahela Group sandstone, siltstone shale, limestone, coal

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Ohio: Majorsville Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Belmont Dunkard Group sandstone, siltstone shale, limestone, coal Monongahela Group sandstone, siltstone shale, limestone, coal

West Virginia: Burgettstown Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Hancock Conemaugh Group shale, siltstone sandstone, limestone, coal Allegheny sandstone, siltstone shale, limestone, coal Formation

Pennsylvania: Burgettstown Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Washington Casselman shale, siltstone sandstone, clastic, limestone, coal Monongahela Group limestone, shale sandstone, coal

Ohio: Burgettstown Lateral County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Jefferson Monongahela shale, siltstone mudstone, sandstone, limestone, coal Conemaugh siltstone, shale mudstone, sandstone, limestone, coal Carrol Conemaugh siltstone, shale mudstone, sandstone, limestone, coal Allegheny & shale, siltstone claystone, sandstone, limestone, coal Pottsville, Undif.

Ohio: Supply Connector/Mainline County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Harrison Monongahela Group shale, siltstone mudstone, sandstone, limestone, coal Conemaugh Group siltstone, shale mudstone, sandstone, limestone, coal Allegheny & shale, siltstone sandstone, limestone, coal, mudstone Pottsville Groups, Undivided Carroll & Conemaugh Group siltstone, shale mudstone, sandstone, limestone, coal Tuscarawas Allegheny & shale, siltstone sandstone, limestone, coal, mudstone Pottsville Groups, Undivided Stark Allegheny & shale, siltstone claystone, sandstone, limestone, coal, Pottsville Groups, Undivided

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Wayne & Maxville Limestone; shale, siltstone sandstone, limestone Ashland Rushville, Logan, and Cuyahoga Formations, Undiv. Richland Maxville Limestone; shale, siltstone sandstone, limestone Rushville, Logan, and Cuyahoga Formations, Undiv. Sunbury Shale black shale Crawford Sunbury Shale black shale Berea Sandstone & sandstone, shale siltstone Bedford Shale, Undif. Ohio Shale black shale, shale Olentangy Shale shale, limestone Columbus limestone, dolostone Limestone Seneca Columbus limestone, dolostone Limestone Lockport Dolomite dolostone Hancock Lockport Dolomite dolostone Wood Tymochtee & dolostone, shale Greenfield Formations, Undiv. Salina Group dolostone, shale evaporites Henry Salina Group dolostone, shale evaporites Dundee Limestone limestone, dolostone Traverse Group dolostone, shale limestone, chert Antrim Shale shale, black shale Defiance Salina Group dolostone, shale evaporites

Ohio: Market Segment County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Defiance Antrim Shale shale, black shale Henry Sunbury & Bedford shale, black shale siltstone Formation, Undiff. Fulton Sunbury & Bedford shale, black shale siltstone Formation, Undiff. Antrim Shale shale, black shale Coldwater Shale shale

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Michigan: Market Segment County Geologic Rock Type Rock Type (Secondary) Formation/Group (Primary) Lenawee Coldwater Shale shale, limestone dolostone, sandstone, siltstone Washtenaw Coldwater Shale shale, limestone dolostone, sandstone, siltstone Marshall Sandstone sandstone, siltstone Livingston Coldwater Shale shale, limestone dolostone, sandstone, siltstone Marshall Sandstone sandstone, siltstone Michigan Formation shale, black shale sandstone, dolostone, limestone, evaporites Bayport Limestone limestone, dolostone sandstone, shale, chert, mudstone, evaporites Saginaw Formation sandstone, shale coal, limestone

Quaternary alluvium (water transported) are deposits of sand, gravel, silt, and clay. These are relatively recent formations in terms of geologic time and are comprised predominantly of soils found along the major stream systems.

4.0 GEOHAZARDS

4.1 Landslide Hazards

Alluvium and colluvium derived from shale, mudstone, claystone, and siltstone are susceptible to high incidence of landslides resulting from singular and secular rainfall and/or snow melt events. These areas are also influenced by surface and subsurface drainage, stream erosion, steep slopes, steep sloping soil-bedrock interface, and anthropogenic disturbances.

4.1.1 National Landslides Hazard Map Initial assessments of landslide hazards are typically performed using the United States Geological Survey (USGS) Landslide Overview Map of the Conterminous United States (Radbruch-Hall et al 1982). This national mapping of landslide was a comparative study of earthen instability based on the differences rock lithology. Fine-grained clastic rocks, comprised of silt and clay-size particles, are commonly weathered and highly prone to ground movements. On this basis, the national map is an appropriate resource for preliminary, conservative evaluations of regional landside susceptibility in consideration of large-scale land-use planning, but may not be sufficient to provide enough insight into specific areas of concern.

The USGS generated five (5) degrees of landslide susceptibility: 1) High Incidence of landslides (>15% of area involved), 2) High Incidence (>15% of area involved) and High Susceptibility (>15% of area involved) of landslides, 3) Low Incidence (<1.5% of area involved) and High Susceptibility (>15% of area involved) of landslides, 4) Low Incidence and Moderate Susceptibility (1.5% to

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15% of area involved) of landslides, and 5) Low Incidence (<1.5% of area involved) of landslides. Susceptibility to landslides is defined as the probable degree of response of the movement of earthen materials in response to anthropogenic impacts, loading of slopes, or to anomalously high precipitation events.

4.1.2 Landslide GIS Layers The national dataset for landslides was readily available as a spatial GIS layer. The application of this dataset is very coarse and only suitable for preliminary referencing. To further define a relative risk rating of low, medium, and high for both landslide incidence and susceptibility, the USGS classification were merged as follows:

High = “High Incidence” and “High Incidence and High Susceptibility” Moderate = “Low Incidence and High Susceptibility” and “Low Incidence and Moderate Susceptibility” Low = “Low Incidence”

The table below lists the beginning mile post along each lateral for the exposure to the various landslide risk noted above. Landslide incidence and landslide susceptibility along the pipeline corridor is presented as Exhibits: C1 through C41.

Pipeline BMP EMP Incidence-Susceptibility Risk Segment Alternate 1 0.0 1.2 LOW Alternate 2 0.0 4.5 LOW Alternate 3 0.0 0.7 LOW Berne 0.0 3.8 HIGH Burgettstown 0.0 18.9 HIGH Burgettstown 18.9 51.5 HIGH Burgettstown 0.0 1.9 HIGH Alternative Route Cadiz 0.0 3.5 HIGH CGT 0.0 5.7 HIGH Clarington 0.0 27.5 HIGH Clarington 27.5 28.0 HIGH Clarington 28.0 30.3 HIGH Clarington 30.3 33.0 HIGH

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Pipeline BMP EMP Incidence-Susceptibility Risk Segment Mainline/Supply 0.0 17.6 HIGH Connector Mainline/Supply 17.6 28.9 HIGH Connector Mainline 28.9 109.9 LOW Mainline 109.9 120.3 MOD Mainline 120.3 202.2 LOW Mainline 202.2 209.7 MOD Majorsville 0.0 23.8 HIGH Market 0.0 3.3 MOD Market 3.3 99.9 LOW Seneca 0.0 25.7 HIGH Sherwood 0.0 54.1 HIGH

4.2 Settlement and Subsidence Hazards

Settlement and subsidence hazards in West Virginia, Pennsylvania, and Ohio are predominantly related to surface and underground mining or may occur naturally in areas prone to karst terrain development.

4.3 Karst

Karst is a known geohazard along the proposed pipeline alignment. An independent study has been performed by others to highlight this geohazard and will be provided in a separate report.

4.4 Mining

Within the Pennsylvanian Age rock, bituminous coal has been extensively mined by surface and subsurface methods. Surface mining of coal occurs by contour mining, strip mining, and mountain top removal to expose the coal while spoiling the overburden soils and rock. Mining prior to 1977 Surface Mining Control and Reclamation Act (SMCRA), mining operators were not required to backfill highwalls (“highwall”: The unexcavated face of the exposed overburden and coal in a surface mine, dictionary.reference.com, 2015).

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Typically, these unreclaimed mines undergo natural vegetative succession or are reclaimed through the Abandoned Mine Land Programs. For mining after the federal law was enacted, the mine spoils are graded back to the approximate original contours with minimal compaction effort. The resulting spoils are prone to piping and significant differential settlement over time. The most severe degree of differential settlement can occur along the mining highwalls (typically found along the boundaries of the contour and strip mining). Another significant concern with highwalls is the occurrence of highwall mining where augers or highwall miners are used to extract coal to distances from 50 to 300 feet behind the highwall face. In these areas, a minimal rib of coal remains to support the overburden with unpredictable long term stability.

Underground mining of clay, coal, gypsum, halite, limestone and sandstone is common where these minerals exist at depths too great to be economically extracted by surface methods. The methods used for underground mining include room and pillar, continuous miner, longwall miner, and by solution mining. Each method presents different short term and long term risks of subsidence. For instance, for room and pillar and continuous mining methods, the overburden is supported by the remaining coal pillars, wood posts, or wood cribbing. Failure of these structural supports may occur over time due to deterioration of the wood and/or pillars, roof beam failure, delamination of the mine roof, and/or punching of the pillars and supports through the mine floor. The longwall mining method involves the complete removal of coal. This method utilizes continuous mining to isolate and prepare the block of coal for mining equipment and air circulation. The longwall method induces immediate subsidence in the center of the mining panel and while the subsidence diminishes as the edges of the longwall panel meet the continuous mining areas. Typically, two-thirds of the mined coal thickness is the anticipated subsidence in the center of the long wall panel. Solution mining is very limited in use. It typically is limited to the mining of salt for consumptive purposes. This method utilizes the dissolution of the mineral though the circulation of a controlled fluid. Control of the cavity created by this method of mining is challenging.

4.4.1 Mining GIS Layers The underground mining layers were compiled for Ohio, Pennsylvania, and West Virginia and include mapped abandoned underground mines, “hatched” underground mine areas (as shown on existing mine maps), and active underground mine operations. It should be noted that the location of these mines are approximate and received as digitized polygons from the originating agencies. The limits of these underground mining operations may not be representative of the final abandonment map of the mine at abandonment.

Based on estimates from the Ohio Geological Survey, only two-thirds of all abandoned underground mines are mapped and located. To generate an underground mine map layer, all mapped underground mines were merged with “hatch” mine areas. The following table presents the location of the intersection point for the underground mines with the proposed centerline of

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Approximate Underground Mine Locations Pipeline Segment BMP EMP Pipeline Segment BMP EMP Burgettstown 0.0 0.3 Clarington 4.1 5.9 Burgettstown 1.9 2.2 Clarington 6.7 6.9 Burgettstown 3.7 3.9 Clarington 7.0 7.2 Burgettstown 15.8 16.0 Clarington 7.7 8.2 Burgettstown 15.8 15.9 Clarington 8.8 14.3 Burgettstown 16.0 16.1 Clarington 9.8 11.2 Burgettstown 16.3 16.3 Clarington 11.3 11.7 Burgettstown 16.3 16.4 Clarington 11.8 13.1 Burgettstown 16.4 16.4 Clarington 13.1 14.0 Burgettstown 16.4 16.4 Clarington 14.4 15.2 Burgettstown 16.4 16.6 Clarington 16.0 18.0 Burgettstown 16.5 16.5 Clarington 16.6 16.6 Burgettstown 28.7 29.1 Clarington 18.0 18.8 Burgettstown 33.7 33.8 Clarington 20.2 20.3 Burgettstown 33.9 33.9 Clarington 20.4 20.7 Burgettstown 34.4 35.0 Clarington 21.2 21.2 Burgettstown 35.1 35.1 Clarington 22.1 22.1 Burgettstown 35.1 35.1 Clarington 22.3 22.4 Burgettstown 35.2 35.3 Clarington 22.5 22.7 Burgettstown 35.3 35.4 Clarington 23.0 23.3 Burgettstown 49.4 49.9 Clarington 24.2 25.4 Burgettstown 50.0 50.7 Clarington 26.0 26.1 Burgettstown 50.8 51.3 Clarington 26.1 26.2 Burgettstown 51.4 51.4 Clarington 26.2 27.6 Clarington 0.0 4.1 Mainline 13.7 16.2 Supply 16.4 16.5 Majorsville 10.1 10.2 Connector/Mainline

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Pipeline Segment BMP EMP Pipeline Segment BMP EMP Supply 17.3 17.8 Majorsville 10.2 10.2 Connector/Mainline Supply 18.0 19.2 Majorsville 10.2 10.3 Connector/Mainline Mainline 19.3 19.8 Majorsville 10.4 10.5 Mainline 27.7 27.8 Majorsville 10.5 10.6 Mainline 27.9 28.3 Majorsville 10.6 11.2 Mainline 28.6 28.6 Majorsville 11.4 11.4 Mainline 28.7 28.7 Majorsville 12.6 14.2 Majorsville 0.0 2.3 Majorsville 14.3 14.6 Majorsville 5.6 7.3 Majorsville 14.6 16.3 Majorsville 7.4 7.9 Majorsville 15.4 17.5 Majorsville 8.5 8.5 Majorsville 17.5 17.9 Majorsville 8.6 8.6 Majorsville 17.9 19.7 Majorsville 8.7 8.7 Majorsville 19.7 19.8 Majorsville 8.8 9.0 Majorsville 19.9 20.6 Majorsville 9.8 9.8 Majorsville 21.2 22.5 Majorsville 9.8 9.9 Majorsville 22.6 23.8 Majorsville 9.9 10.0 Majorsville 23.1 23.8 Majorsville 10.1 10.1 Seneca 21.7 22.0 Seneca 23.7 25.7

For surface mines, the abandoned surface mines and reclaimed abandoned mine lands were merged with any records of contour mining, strip mining, and mountaintop mining operations. The above table identified the Lateral and the beginning and ending mile post for each surface mine area recorded.

Approximate Surface Mine Locations Pipeline Segment BMP EMP Pipeline Segment BMP EMP Berne Lateral 0.0 0.2 Cadiz Lateral 0.0 0.2 Berne Lateral 0.8 0.8 Cadiz Lateral 0.2 0.2

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Pipeline Segment BMP EMP Pipeline Segment BMP EMP Burgettstown 14.5 14.6 Cadiz Lateral 0.3 0.4 Lateral Burgettstown 14.8 14.8 Cadiz Lateral 0.5 1.0 Lateral Burgettstown 19.2 19.3 Cadiz Lateral 1.0 1.1 Lateral Burgettstown 19.4 19.4 Cadiz Lateral 1.9 2.4 Lateral Burgettstown 19.4 19.5 Cadiz Lateral 2.0 2.4 Lateral Burgettstown 19.6 19.8 Clarington Lateral 6.4 6.7 Lateral Burgettstown 20.6 20.6 Clarington Lateral 15.4 15.5 Lateral Burgettstown 22.3 22.4 Clarington Lateral 16.4 16.6 Lateral Burgettstown 22.8 22.9 Clarington Lateral 16.8 16.9 Lateral Burgettstown 24.7 24.8 Clarington Lateral 17.9 17.9 Lateral Burgettstown 26.6 26.7 Clarington Lateral 18.0 18.0 Lateral Burgettstown 32.4 32.5 Clarington Lateral 19.6 19.7 Lateral Burgettstown 34.5 34.6 Clarington Lateral 19.7 19.7 Lateral Clarington Lateral 19.7 19.8 Clarington Lateral 26.3 27.2 Clarington Lateral 20.4 20.8 Clarington Lateral 27.0 27.0 Clarington Lateral 20.4 20.8 Clarington Lateral 27.2 27.2 Clarington Lateral 20.8 20.8 Clarington Lateral 27.3 27.5 Clarington Lateral 21.3 21.4 Clarington Lateral 27.3 27.5 Clarington Lateral 21.4 21.5 Clarington Lateral 27.5 28.0 Clarington Lateral 21.7 22.4 Clarington Lateral 27.7 27.8

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Pipeline Segment BMP EMP Pipeline Segment BMP EMP Clarington Lateral 22.0 22.1 Clarington Lateral 28.0 28.2 Clarington Lateral 22.2 22.3 Clarington Lateral 28.1 28.3 Clarington Lateral 22.5 22.5 Clarington Lateral 28.1 28.2 Clarington Lateral 23.6 24.2 Clarington Lateral 28.2 28.3 Clarington Lateral 24.2 24.5 Clarington Lateral 29.2 29.8 Clarington Lateral 24.5 25.4 Clarington Lateral 29.7 30.3 Clarington Lateral 25.4 26.2 Clarington Lateral 29.8 29.8 Clarington Lateral 26.2 26.3 Clarington Lateral 29.8 29.8 Clarington 29.8 29.8 Mainline 34.8 34.8 Clarington 30.7 30.7 Mainline 34.9 34.9 Clarington 30.8 30.8 Mainline 35.0 35.1 Clarington 31.7 31.9 Mainline 35.2 35.6 Supply Connector/ 1.6 2.4 Mainline 35.3 35.3 Mainline Supply Connector 2.4 2.6 Mainline 35.3 35.3 Mainline Mainline 22.8 22.8 Mainline 35.3 35.3 Mainline 22.8 22.9 Mainline 35.3 35.4 Mainline 22.8 23.1 Mainline 35.4 35.5 Mainline 22.8 23.0 Mainline 36.6 36.6 Mainline 22.9 23.1 Mainline 36.7 37.0 Mainline 23.0 23.1 Mainline 37.9 38.0 Mainline 23.1 23.4 Mainline 42.4 42.4 Mainline 23.1 23.2 Mainline 65.1 66.0 Mainline 23.3 23.3 Majorsville 22.7 22.9 Mainline 27.0 27.4 Majorsville 22.7 22.9 Mainline 27.5 28.0 Majorsville 22.7 22.9 Mainline 28.3 28.3 Seneca Lateral 1.6 1.8 Mainline 28.6 28.6 Seneca Lateral 1.8 1.8 Mainline 28.6 29.0 Seneca Lateral 23.1 23.1

Responsive ■ Resourceful ■ Reliable 17 Expected Geohazard Conditions Proposed Rover Pipeline, Project (PCS #141138) West Virginia, Pennsylvania, Ohio & Michigan Terracon Project Number N4149328 June 4, 2015

Pipeline Segment BMP EMP Pipeline Segment BMP EMP Mainline 31.6 31.7 Seneca Lateral 23.2 23.2 Mainline 31.9 31.9 Mainline 34.8 34.8 Mainline 32.3 33.0 Mainline 34.9 34.9 Mainline 33.2 33.2 Mainline 35.0 35.1 Mainline 34.5 35.1 Mainline 35.2 35.6 Mainline 35.3 35.3 Mainline 36.6 36.6 Mainline 35.3 35.3 Mainline 36.7 37.0 Mainline 35.3 35.3 Mainline 37.9 38.0 Mainline 35.3 35.4 Mainline 42.4 42.4 Mainline 35.4 35.5 Mainline 65.1 66.0

Both surface and underground mines are presented as Exhibits: D1 through D41.

4.5 Soil Depth

To aid in the assessment of constructability, the soil depth was calculated. The national data sets for elevation and minimum rock depth from Soil Survey Geographic Database (SSURGO) were used to estimate several ranges of soil depth. These ranges included exposed rock, less than three (3) feet, three (3) to six (6) feet, and six (6) to nine (9) feet. The occurrence of shallow rock is presented in Exhibits: E1 through E41.

5.0 SUMMARY OF GEOHAZARD FINDINGS

This study involved the assessment of publically available information to identify the following geologic hazards: underground mines, surface mines, and landslides. Karst is a known geohazard along the proposed pipeline alignment. An independent study has been performed by others to highlight this geohazard and will be provided in a separate report. The exposure of the above mentioned geologic hazards, with the exception of karst, to each pipeline segment is summarized in the following table.

5.1 Summary Table

Based on straight line mileage, exposure of the centerline for each defined pipeline segment to the specific geologic hazards was summed and presented in the table below.

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Summary of All Geohazards Pipeline Segment Distance (mi) Underground Surface Mines Landslide Name Mines (mi) (mi) (mi) Berne 3.75 0.00 0.18 3.75 Burgettstown 51.50 4.56 1.08 51.50 Cadiz 3.52 0.00 1.89 3.52 CGT 5.70 0.00 0.00 5.70 Clarington 32.96 23.56 8.98 5.46 Supply Connector/ 209.66 5.32 6.96 199.27 Mainline Majorsville 23.83 17.98 0.46 23.83 Market 99.94 0.00 0.00 99.94 Seneca 25.74 2.34 0.30 25.74 Sherwood 54.07 0.00 0.00 54.07 510.67 53.76 19.86 472.79

5.1.1 Detailed Summary of Landslide Incidence and Susceptibility The following table provides the degree of landslides incidence and susceptibility based on USGS criteria.

Summary of USGS Landslide Occurrences Lateral Name High High High Moderate Low Incidence Incidence Incidence/ Susceptibility Susceptibility (mi) (mi) Susceptibility (mi) (mi) (mi) Berne 3.75 0.00 0.00 0.00 0.00 Burgettstown 18.92 32.58 0.00 0.00 0.00 Cadiz 0.00 3.52 0.00 0.00 0.00 CGT 5.70 0.00 0.00 0.00 0.00 Clarington 2.30 3.16 0.00 0.00 0.00 Supply 0.00 17.55 11.36 7.42 162.94 Connector/ Mainline Majorsville 23.83 0.00 0.00 0.00 0.00 Market 0.00 0.00 0.00 3.28 96.66 Seneca 25.74 0.00 0.00 0.00 0.00 Sherwood 54.07 0.00 0.00 0.00 0.00 134.32 56.81 11.36 10.70 259.60

Responsive ■ Resourceful ■ Reliable 19 Expected Geohazard Conditions Proposed Rover Pipeline, Project (PCS #141138) West Virginia, Pennsylvania, Ohio & Michigan Terracon Project Number N4149328 June 4, 2015

5.2 Alternative Routes

The comparison of the alternate routes provided to the corresponding section of the pipeline segment has been presented in the table below. Comparison of the deviations are presented in the following table based on the alternative route from the straight line mileage.

Alternate Route Comparisons Landslide High Landslide Low Lateral Name Miles Incidence Incidence Market along Alt 1 1.31 0.00 1.31 Alternate 1 1.23 0.00 1.23 Market along Alt 2 4.61 0.00 4.62 Alternate 2 4.53 0.00 4.53 Market along Alt 3 0.55 0.00 0.55 Alternate 3 0.72 0.00 0.72 Burgettstown 2.11 2.11 0.00 Burgettstown Alternative Route 1.92 1.92 0.00

6.0 DESCRIPTION OF ANTICIPATED GEOHAZARDS AND TYPICAL MITIGATION TECHNIQUES

This section of the report provides a general description of the anticipated geohazards along the proposed pipeline corridor (except for Karst) and also includes information related to some typical geohazard mitigation techniques.

6.1 Underground Mine Voids

Underground mining has been occurring in the region since the late 1800’s and continues to this day. Coal mining has been the primary mineral for extraction; but, in many mining operation included the extraction of the underclays for pottery and brick manufacturing. In cases where both the coal and underclays were excavated, mining creating large vertical voids. Support of these openings involved the strategic placement of support pillars, wood cribbing, or wood posts.

With the aging of the mine and its support system, failure of the support system should be anticipated. Failure of a mine support can result in propagation of the failure to the ground surface. Expression of the failure at the surface may be a catastrophic shearing event or may result in the development of a gentle sag at the surface or may be undetectable depending on the depth of the mine void, the composition and strength of the overburden materials, thickness of the mine void, etc. In addition, nearly all underground mine operations required the use of vertical

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shaft or slope shafts for accessing the mine, circulation of air, and haulage of minerals from the mine. These shafts should be avoided whenever possible.

The surface expression of subsidence from the underground mines tends to attenuate with depth to the mine. It should be noted that each underground mine requires a site specific investigation to assess its impact on the above ground or near surface structure or utilities and then to devise mitigation construction measures. Pending additional subsurface investigation, the following approach represents a reasonable guideline for evaluating and mitigating underground mine hazards when identified.

For the purpose of discussion, a depth of 100 feet has been used to discuss options for mine remediation. At depths greater than 100 feet, it may be recommended to monitor the settlement at the near surface.

• For underground mines less than 40 feet deep o Over excavate and backfill with compacted earthen materials o Drill and grout . Place a low strength cementitious grout • For underground mines greater than 40 feet to 100 feet deep o Drill and grout . Place a low strength cementitious grout • For underground mines greater than 100 feet o Real-time Monitoring . Install horizontal time domain reflectometry (TDR) cables with real-time monitoring • For slope and vertical mine shafts o Over excavation and place a permanent cap over vertical shaft . Backfill with compacted earthen materials o Drill and grout . Place a low strength cementitious grout

6.2 Surface Mines

Surface mining activities result in the spoiling of overburden materials. This process does not involve any compactive effort in backfilling the landscape to its approximate original contour. Subsequently, the mine spoils undergo differential settlement with time. Typically, the most severe areas of differential settlement occur along the backfilled highwalls. These areas are also exposed to the greatest degree to groundwater movement and soil piping issues. Some surface mining activities also involved the augering or mining of the remaining coal located behind the highwall. Selection of the appropriate remedial actions may be dictated by the age of the mining

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operation, mining method, spoil composition, occurrence of groundwater, location of the highwalls and depth of mine spoil.

The following remediation actions may be utilized depending upon the specific setting:

• Old Mine Spoils o No action • Recent Mine Spoils o No Action o Over excavation and installation of Geotextile . Backfill with compacted earthen materials • Problematic Mine Spoil Areas near Buried Highwalls o Dynamic compaction o Compaction Grouting • Highwall Mining Areas o No Action o Drill and grout . Place a low strength cementitious grout

6.3 Landslides

East of Interstate 77, including eastern Ohio, Pennsylvania, and West Virginia, the pipeline traverses steep terrain and geologic formation and soils highly prone to landslides. In areas with a high degree of landslide incidence and high susceptibility to land instability, multiple engineering solutions are anticipated for stabilization of ground movements.

To minimize the occurrence of landslides, some general guidelines should be utilized whenever possible: • Avoid active landslides • Avoid excavations along steep outslopes during periods of heavy precipitation • Minimize the length of open trenches and backfill as soon as possible

Once identified, several landslide remedial actions can be implemented (individually or in aggregate) to stabilize land movements. These actions may include, but are not limited to, the following:

• Over excavation and compaction earthen backfill • Keyway installation • Surface and groundwater drainage control • Buttressing, counterberms, and toe berms • Structural retention systems

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• Soil reinforcement • Chemical treatment • Biological treatment

7.0 NEXT STEPS

Based on the publically available information, areas along the proposed pipeline alignment which could be potentially subjected to geologic hazards have been identified in this desktop study. This desktop information could be used to focus on such areas of potential concern and additional engineering investigation scope developed in order to establish the most appropriate means and methods to remediate/mitigate the potential geohazards.

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Exhibits Referenced Information

Geology: Exhibits A-1 through A-41 Landslides: Exhibits C-1 through C-41 Mines: Exhibits D-1 through D-41 Soil Depths: Exhibits E-1 through E-41

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³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-13 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery 194 193

Main line 191 190 192 189 188 187 186 185 184 183 182 181 180 179 178 177 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-14 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery 178 177 Main line 175 176 174 173 172 171 170 169

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161 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-15 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery 161

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147 146 145 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-16 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery 145 144

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128 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-17 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery M ai nli 128 ne 127

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112 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-18 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery 113

112

111

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109 108 107 104 103 102 106 105 99 101 100 Mainline 98 97 96 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-19 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery 96

95 94

M a in l in e 93 92 91 90 89 80 88 82 81 79 87 83 85 84 86 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-20 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery 79

78 77 76 M a in li ne 75 74

71 70 69 66 68 67 65

62 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-21 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery 62 61 Mainline 60 59 58 57 56 55 54 51 53 52 50 49 48

47 46 45 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-22 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery 46 45 44

43 42 41 40 Mainline 38 39 37 36 35 34

30 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-23 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery 29

M a in li ne 22 d

Mainline x m . y g o l o e G - A t i b i h x E \ e l b a r e v i l e D \

± s p a M \

Project No.: r e alluvium dolostone (dolomite) mudstone shale GEOLOGY Exhibit v 4149328 o R - Date: 8 2

black shale limestone sandstone siltstone 3 9

DATA SOURCES: May 2015 4 1

³ 4 Service Layer Credits: Sources: Esri, HERE, DeLorme, NRCS - gSSURGO, Muaggatt/BROCKDEPMIN Drawn By: PRELIMINARY DESKTOP STUDY N \

USCB TIGER - County Boundaries s

USGS, Intermap, increment P Corp., NRCAN, Esri t USGS OpenFile Report Bedrock Geology AKM A-24 c ROVER PIPELINE e Japan, METI, Esri China (Hong Kong), Esri (Thailand), 800 Morrison Road Columbus, OH 43230 j USGS National Elevation Dataset o Reviewed By: r MI, OH, PA, WV; USA P TomTom, MapmyIndia, © OpenStreetMap contributors, USGS National Hydrography Dataset \ PH. (614) 863-3113 terracon.com : C ± and the GIS User Community ESRI WMS - Light Grey Canvas Base and Reference KDB ESRI WMS - World Aerial Imagery