ENVIRONMENTAL ASSESSMENT Addendum

Sacagawea Pipeline

Omaha District U.S. Army Corps of Engineers

Prepared for: Paradigm Midstream Services – ND, LLC

Prepared by: SWCA Environmental Consultants

November 20, 2015

For information contact: U.S. Army Corps of Engineers - Omaha District ATTN: CENWO-PM-AC 1616 Capitol Avenue, Omaha, NE 68102-4901 Corps of Engineers’ Addendum to BIA Sacagawea Pipeline Environmental Assessment

TABLE OF CONTENTS Page EXECUTIVE SUMMARY ...... IV 1.0 INTRODUCTION ...... 1 1.1 Legal Land Description for Proposed Action ...... 2 1.2 Alternatives ...... 4 1.2.1 No Action Alternative ...... 4 1.2.2 Preferred Alternative ...... 4 1.2.2.1 Construction Specifics ...... 4 1.2.2.2 Directional Drilling...... 5 1.2.2.3 Operations and Maintenance ...... 6 1.2.2.4 Reclamation ...... 7 2.0 RELEVANT CORPS’ AUTHORITIES ...... 8 2.1 Corps Civil Works Authorities ...... 8 2.2 Corps Regualtory Authorities ...... 8 3.0 IMPACTS OF THE PROPOSED PROJECT ON CONGRESSIONALLY AUTHORIZED PURPOSES ...... 8 4.0 THE AFFECTED ENVIRONMENT AND ENVIRONMENTAL CONSEQUENCES ...... 10 4.1 Air Quality ...... 10 4.2 Wetlands ...... 10 4.3 Vegetation ...... 11 4.4 Wildlife ...... 11 4.5 Threatened and endangered species ...... 11 4.6 Mitigation and Monitoring ...... 12 4.7 Cumulative Impacts ...... 12 5.0 NEPA ADEQUACY CRITERIA ...... 12

Figure Page Figure 1. Overview of proposed Sacagawea Pipeline...... 3

Table Page Table 1. Temporary Construction Areas Disturbance ...... 5

Appendix A. Resource Maps for the Proposed Sacagawea Pipeline B. Amended Technical Supplement C. Wetland and Waterbody Acreage Tables

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EXECUTIVE SUMMARY

Paradigm Midstream Services – ND, LLC (Paradigm) is proposing to construct and operate an approximately 70-mile-long oil and gas pipeline system (Sacagawea Pipeline) in McKenzie and Mountrail Counties, North Dakota. The purpose of the proposed project is to transport crude oil produced by Bakken Field wells from the south side of Lake Sakakawea to a collection point north of Lake Sakakawea. There is a need to move crude oil from production wells to hubs where it can be collected and transported to market. The capacity of existing intrastate infrastructure to move crude oil from the production fields south of the Missouri River to the northern transportation hubs is less than 100,000 barrels per day (bpd) while the production of crude south of the Missouri River has conservatively been estimated to be approximately 400,000 bpd. In the absence of other viable transportation alternatives for the balance of daily production, which is estimated to be approximately 300,000 bpd, producers are limited to overland trucking of their crude to reach the desirable transfer points north of the Missouri River with access to broader range of markets nationwide. The proposed pipeline would offer an additional capacity of up to 190,000 bpd to the region which is currently producing an estimated 400,000 bpd but is constrained to less than 100,000 bpd of take away capacity offered by existing utility services.

This proposed project was the subject of an environmental assessment (EA) prepared pursuant to the National Environmental Policy Act (NEPA) by the Bureau of Indian Affairs (BIA). This EA addressed the installation and operation of the proposed pipeline, which would span privately owned lands, state trust lands, Fort Berthold Indian Reservation (Reservation) lands and U.S. Army Corps of Engineers’ (Corps)-managed lands. The Corps was identified as a cooperating agency for the proposed project. The intent was for BIA, the lead federal agency, to coordinate with the Corps on the NEPA document and design analysis. However, the BIA signed a finding of no significant impact (FONSI) on August 25, 2015 prior to the finish of the Corps’ opportunity to review and comment on BIA’s document. Therefore, this following addendum to the BIA’s EA and subsequent FONSI has been prepared to provide supplemental information where needed to provide additional information pertinent to the Corps’ Water Resources responsibilities. This document would allow the Corps’ Omaha District Commander to determine whether reasonably foreseeable impacts of the proposed project would have a significant environmental impact, either by itself or cumulatively, with other on-going activities at Lake Sakakawea.

A Summary of NEPA Adequacy Criteria is provided in Section 5.0 of this Addendum.

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v Corps of Engineers’ Addendum to BIA Sacagawea Pipeline Environmental Assessment

1.0 INTRODUCTION

Paradigm Midstream Services – ND, LLC (Paradigm) is proposing to construct and operate the proposed Sacagawea oil and gas pipeline system in McKenzie and Mountrail Counties, North Dakota. The purpose of the proposed project is to transport crude oil produced by Bakken Field wells from the south side of Lake Sakakawea to a collection point north of Lake Sakakawea (Garrison Project). The proposed project is a 70-mile-long pipeline for the transportation of crude oil from McKenzie County to rail and pipeline transmission locations in Mountrail County. Approximately 7,482 feet of the proposed pipeline system would pass underneath Lake Sakakawea.

This proposed project was the subject of an environmental assessment (EA) prepared pursuant to the National Environmental Policy Act (NEPA) by the Bureau of Indian Affairs (BIA) (see Environmental Assessment and Finding of No Significant Impact: Sacagawea Pipeline, Paradigm Midstream Services - ND, LLC [August 25, 2015]). The EA addressed the installation and operation of the pipeline, spanning privately owned lands, state trust lands, and Fort Berthold Indian Reservation (Reservation) lands, U.S. Army Corps of Engineers’ (Corps’) lands, and lands regulated by the Corps (federally regulated, fee surface, allotted, and tribal lands).

The BIA is the surface management agency for potentially affected tribal lands and individual allotments. The portion of the proposed action on tribal trust land requires approval by the BIA for the land use, construction, maintenance, operation, and final abandonment and reclamation of approximately 3.26 miles of the pipeline and associated access roads located on allotted lands within the boundary of the Reservation. The BIA determined that the proposed project is not a major construction activity, as defined in Title 50 Code of Federal Regulations Part 402.02. The portion of the proposed project crossing the Reservation would need approval from the Mandan, Hidatsa, and Arikara (MHA) Nation. Of the remaining length of the system, 21.99 miles would occur on Reservation fee lands; 2.82 miles would occur on North Dakota state trust lands; and 41.47 miles would occur on privately owned lands outside of the Reservation that are under the jurisdiction of the North Dakota Public Service Commission. At this time, potential connections and gathering lines associated with this trunk line are unknown and would require additional NEPA analysis at a later date.

The BIA signed a finding of no significant impact (FONSI) on August 25, 2015, indicating that, in the opinion of the BIA, the project would not have significant impacts on the human environment.

The Corps is responsible for review and decisions on the issuance of a realty permit, and authorization for the lake crossing pursuant to Sections 10 and 408 of the Rivers and Harbors Act of 1899. The U.S. Fish and Wildlife Service (USFWS) manages wetland and grassland easements in the area crossed by the northern portion of the project. The USFWS requires lands enrolled in its federal easement program to be avoided to the extent practical by project design such as rerouting or boring. Impacts to a USFWS easement would require a special use permit or right-of-way (ROW).

1 Corps of Engineers’ Addendum to BIA Sacagawea Pipeline Environmental Assessment

This EA addendum has been prepared to provide supplemental information where needed to provide additional information pertinent to the Corps’ Water Resources responsibilities. This EA addendum analyzes potential impacts to elements in the natural and human environments for both the No Action Alternative and the Proposed Action as described in sections 2.1 and 2.2 in the original EA. Two additional alternatives were considered but dismissed, as described in section 2.2 in this addendum. Impacts may be beneficial or detrimental, direct or indirect, and short-term or long-term. This addendum also analyzes the potential for cumulative impacts and ultimately makes a determination as to the significance of any impacts. If no significant environmental impacts are anticipated, if there is not a high degree of risk or uncertainty to the human environment, a FONSI would be issued for the proposed project.

1.1 LEGAL LAND DESCRIPTION FOR PROPOSED ACTION

Section 1.1 of the EA provides the full list of townships, sections, and ranges the pipeline crosses. The route of the proposed pipeline system would begin at the proposed Paradigm CDP Facility in McKenzie County, 2.34 miles directly south of Keene, North Dakota, and enter the west side of the Reservation at a point in the NE¼ Section 22, Township (T) 151 North (N), Range (R) 96 West (W). The route would proceed east, crossing State Highway 22 and continuing under Lake Sakakawea in Section 36, T151N, R94W, then turn northeast, across the Van Hook peninsula, and exit the Reservation east of Newtown at a point in the NE¼ Section 10, T152N, R92W. The pipeline would continue north then east across private lands and terminate less than 1 mile southwest of Palermo, North Dakota (Appendix A). The Sacagawea Pipeline system encompasses portions of 84 sections within 16 townships and ranges. An overview map of the proposed project is provided as Figure 1.

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Figure 1. Overview of proposed Sacagawea Pipeline.

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1.2 ALTERNATIVES

In the original EA, three action alternatives were initially discussed. Two of the three action alternatives were rejected due to lack of feasibility or potential to result in greater impacts than the Proposed Action. One alternative was to string the pipeline underneath the Four Bears Bridge. This alternative was dismissed because of maintenance concerns and threats to human safety. Trenching the pipeline into the bottom of the lake was also discussed and eliminated because horizontal directional drilling (HDD) is a safer, more environmentally friendly method of making the crossing and is the method prescribed by the Corps in the Garrison Management Plan (GMP). The Corps has also previously approved a HDD crossing by another pipeline company in the same area, since it is the preferred corridor. For these reasons, the alternatives of trenching into the lake bottom and using the Four Bears Bridge to support the pipeline crossing were dismissed as having greater potential for impacts to the environment, and the under-lake bore was selected as the preferred alternative.

1.2.1 No Action Alternative The No Action Alternative, as discussed in section 2.1 of the original EA, addresses the issues that would remain without the project; specifically, the problem the industry, landowners, residents, and the state are experiencing in relation to continued and possibly increasing truck and rail traffic and its associated effects. Under the No Action Alternative, the Corps would not approve the proposed project. Oil would continue to be stored on site and hauled away by truck. Gas would continue to be flared at well production sites that would otherwise be serviced by the proposed pipeline. Also under the No Action Alternative, the potential for avoidance and minimization of pollution and other hazards, including the potential for catastrophic spills and explosions from train and truck transportation, would not be realized.

1.2.2 Preferred Alternative Please reference section 2.2 of the original the EA for a full project description.

The Proposed Action includes a bore under Lake Sakakawea which is being reviewed for potential permitting by the Corps. The system would be constructed and operated in full compliance with all applicable laws, regulations, and standard agency Best Management Practices (BMPs).

1.2.2.1 Construction Specifics See Section 2.2.1 in the referenced EA for a complete discussion of construction specifics.

The construction of the entire proposed system is estimated to temporarily impact a maximum area of 505.84 acres within the construction ROW, temporary workspace, and temporary access roads. Within the Reservation, 3.26 miles (30.00 acres) of the system total disturbance would be within allotted lands, and 21.99 miles (163.17 acres) would be constructed on fee lands. Outside the Reservation, 41.47 miles (288.45 acres) would be impacted on private land and 2.82 miles (23.17 acres) on state trust land. The portions of the proposed system on

4 Corps of Engineers’ Addendum to BIA Sacagawea Pipeline Environmental Assessment uplands would be buried at an average depth of approximately 6 feet (Table 1). After the system is constructed, Phillips 66 would maintain a 50-foot-wide permanent ROW on 122.65 acres on fee lands, 14.11 acres on allotted lands, 235.09 acres on private lands, and 14.91 acres on state trust lands, and along the entire length of the proposed system.

Construction materials would be stored on property owned by Paradigm Midstream. Any impacts to tribal or Corps-managed lands due to the storage of construction materials would be avoided.

Table 1. Temporary Construction Areas Disturbance

Property Temporary 100- Temporary Temporary Total (acres) Ownership foot ROW (acres) Workspace (acres) Access (acres) State 16.14 0.00 7.03 23.17 Corps 0.00 0.00 1.05 1.05 Allotted 29.10 0.90 0.00 30.00 Fee 125.96 7.55 29.66 163.17 Private 257.69 10.44 20.32 288.45 Total 428.89 18.89 58.06 505.84

1.2.2.2 Directional Drilling HDD or boring reduces/mitigates traffic disturbances, damage to roads, and environmental impacts to roads, waterways, wetlands and cultural resources. A hole would be bored beneath a surface or near-surface asset in an arch from one surface hole to another. Then, the pipe would be pulled through the hole (either bare or in a casing). Areas identified for boring are located where either the North Dakota Department of Transportation or the USFWS requires them, in areas where BMPs are logical (waterways, roads, wooded draws, etc.), and were designed to meet the project design for the lake crossing.

Drill fluid properties are typically checked four times per shift. Annular pressures are monitored constantly while drilling the pilot hole.

The proposed project would install approximately 10,980 feet of welded steel pipeline under Lake Sakakawea by HDD. The lake crossing would be inspected using a “pig” with a gauging plate to determine if any dents exist. Then, a combination Caliper Tool/MFL Internal Inspection Tool would be pulled through the pipe to determine if there are any dents or gouges, and these dents would be assessed and measured. If any damage is detected, the level of damage would be evaluated based on the design criteria of the pipeline and Title 49 Code of Federal Regulations, Subtitle B, Chapter 1, Subchapter D, Part 195. Results would determine if the operating pressure of the crossing requires lowering or abandoning the crossing. See attached Amended Technical Supplement (Appendix B). Then, a second crossing would be installed using the same procedure.

Approximately 7,482 feet of the project would occur under Corps-managed submerged lands, including 1,498 feet of the historic Missouri River channel. Pipelines would be located 200 to 250 feet below the lake bed, as shown in the project maps in Appendix A. A permit application package for the proposed project was submitted to the Corps, and the Sovereign

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Lands Permit was submitted to the Office of the State Engineer for approval on February 3, 2015. No surface disturbance would occur on Corps-managed lands. The directional drill start and end locations would be located on private lands as shown in Appendix A. Construction is anticipated to occur shortly after receipt of all necessary approvals. The geologic study that was completed for this project is included in the original EA.

1.2.2.3 Operations and Maintenance All roads (private, county, state, BIA) used for the proposed pipeline system would be maintained in their current condition or would be improved. Temporary roads used to access the ROW would be maintained by Phillips 66. One newly constructed road is proposed that would access the valve on the east side of Lake Sakakawea. This road would be maintained for the life of the project by Sacagawea Pipeline Company. If rutting does occur, roads would be fixed immediately. However, rutting would be avoided if at all possible.

The Sacagawea Pipeline would be operated by Phillips 66. Maintenance on the system would be limited to the permanent 50-foot ROW on the upland portions, and to the permitted corridor for the under-lake bore portion. Systems may need to be replaced if corrosion or leaking occurs. If there is a leak on the upland portion of the project, contaminated soil around the leak would be removed and remediated. All applicable regulations and BMPs would be implemented to eliminate and minimize both loss of product and environmental contamination.

The Bartlesville Control Center would monitor pump suction and discharge pressures, various line pressures along the pipeline, and delivery pressures at delivery locations. Controllers would use the Supervisory Control and Data Acquisition (SCADA) system application known as "Ops Parameters" to set high and low pressure deviation brackets around pressure points to monitor for abnormal increases or decreases in pressure. These high and low pressure deviation brackets would generate an alarm to the Controller in the event of a sudden pressure increase or decrease on the pipeline. Controllers would follow procedure AOC-0002 (Abnormal Operation Conditions – Pressure/Flow Deviation) for recognizing and responding to abnormal pressure or flow deviations. In the event a Controller observes a drop in pressure, they would shutdown the pipeline and isolate/close all appropriate mainline, manifold, and tank valves if a leak was suspected.

The Controller would monitor for pressure and flow deviation as well as monitor for volume balance deviations in the SCADA application known as "Pipeline Monitoring" or simply, PLM, to alert them to any possible leak condition. In the event a leak is detected, the Controller would follow procedure WRK-0002 (Unconfirmed/Confirmed Leak Process) which instructs the Controller to shutdown the pipeline and isolate/close all appropriate mainline, manifold, and tank valves if a leak was suspected. Local field responders would be dispatched to the potential leak location to provide on-site leak response management.

Aerial patrols would be conducted at least every 2 weeks and as needed (i.e., post excessive precipitation, flooding, etc.). Water crossings would be formally inspected at least every 5 years and after high water events. Block valves would be inspected twice per year. Cathodic protection readings (approximately every mile) would be recorded annually. Phillips 66 participates in the “one call” system and responds to all calls within proximity to pipelines

6 Corps of Engineers’ Addendum to BIA Sacagawea Pipeline Environmental Assessment they maintain. Phillips 66 has personnel on site if there is third-party excavation within 25 feet of a Paradigm pipeline.

Multiple means would be used to detect a leak in the Sacagawea Pipeline. The primary leak detection system would be the SCADA PLM application. Other means of leak detection would be SCADA deviation alarms (pressure and flow deviation alarms), visual ROW inspection (routine areal patrol), and public awareness programs for third-party reporting. The PLM application would be configured to detect a volume balance deviation between the input and outlet meters, and to compensate volume balance deviations against line pack calculations to improve leak detection accuracy and reliability. In the event a volume balance deviation is detected that exceeds alarm limit thresholds, an alarm would be generated to the Controller. The Controller would follow procedure GEN-0007 (General Operations Procedure – Pipeline Monitoring Leak Detection) for recognizing and responding to potential leaks. To emphasize Phillips 66's "Think Leak" philosophy, all Controllers have been given and are expected to use their authority to shutdown any pipeline system or segment suspected of having a leak.

Potential pollution occurring as a result of construction activities, hydrostatic testing, and pipeline operations is a concern for the Lake Sakakawea ecosystem, including downstream on the Missouri River. Continuous monitoring of input and output volumes and pressures would detect leaks in the pipeline. However, given the protective measures and BMPs referenced above, the potential for disturbance or adverse effects from construction, operation, and reclamation of the project is considered extremely small.

1.2.2.4 Reclamation See Section 2.2.4 in the EA for the full discussion on interim reclamation. Specific measures for interim reclamation and crossing methods within wetlands and streams are provided in Appendix D of the EA.

Final reclamation would occur when the pipelines are decommissioned. It is environmentally and economically unfeasible to excavate and remove the decommissioned pipelines. Instead, they would be purged with water of any production product remaining in the lines and then abandoned in place.

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2.0 RELEVANT CORPS’ AUTHORITIES

2.1 CORPS CIVIL WORKS AUTHORITIES

Section 408 of the Rivers and Harbors Act of 1899 (33 U.S.C. § 408) expressly prohibits the public from taking possession of, using for any purpose, building upon, altering, defacing, destroying, moving, injuring or “in any manner whatsoever” impair the usefulness of a levee or other work built by the United States for the purpose of navigation or flood control without prior approval from the Secretary of the Army on the recommendation of the Chief of Engineers of the Corps.

2.2 CORPS REGUALTORY AUTHORITIES

Additionally, the Corps’ Regulatory Program has been charged with Section 10 of the Rivers and Harbors Act of 1899 (33 U.S.C. § 403), which prohibits unauthorized obstruction or alteration of any navigable water of the United States. This Section provides that the construction of any structure in or over any navigable water of the United States requires a permit issued by the Secretary of the Army, on the recommendation of the Chief of Engineers of the Corps. Compliance with Section 10 of the Rivers and Harbors Act (33 United States Code 403) is required for the passage under Lake Sakakawea, which, for the proposed action, is addressed through authorization under Nationwide Permit 12, a permit pursuant to Section 408 of the Rivers and Harbors Act, and a Corps realty instrument.

Under Section 404 of the Clean Water Act (33 U.S.C. § 1344) the Corps regulates discharges of dredge or fill material into waters of the United States. This permitting authority applies to all waters of the United States, including navigable waters and jurisdictional wetlands.

3.0 IMPACTS OF THE PROPOSED PROJECT ON CONGRESSIONALLY AUTHORIZED PURPOSES

The Corps manages the six mainstem dams and reservoirs on the Missouri River, to include Lake Sakakawea, as well as the Bank Stabilization and Navigation Project (BSNP) in order to support eight congressionally authorized purposes of the 1944 Flood Control Act. These congressionally authorized purposes are 1) Flood Risk Management, 2) Navigation, 3) Hydropower, 4) Irrigation, 5) Water Supply, 6) Water Quality, 7) Recreation and 8) Fish and Wildlife. No one authorized purpose is more important than any other and all must be equally considered.

The proposed project’s likelihood for potential impacts to the eight congressionally authorized purposes of the Garrison Project/Lake Sakakawea are described in the following analysis summary. Please refer to the project description in section 1.1 of the original EA for details of the proposed construction, operation, and maintenance of the proposed project.

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The proposed project would consist of a horizontal bore and installation deep under the lake bed. Potential impacts to each of the Garrison Project/Lake Sakakawea’s authorized purposes are discussed.

Flood Control: Neither lake levels nor downstream flow would be affected, and therefore, flood damages would not be affected by the preferred alternative. Since no impacts are expected, impacts would be neither detrimental nor beneficial.

Navigation: The proposed pipeline would be bored using HDD deep under the lakebed; therefore, there would be no hazard to navigation posed by the construction or operation of the proposed pipeline, and no other impacts to navigation. Since no impacts are expected, impacts would be neither detrimental nor beneficial.

Hydropower: There would be no impact to flows passing through the power plant or any other impact to the production of hydropower produced from the Garrison Dam power plant. Since no impacts are expected, impacts would be neither detrimental nor beneficial.

Water Supply: Should a failure occur to the pipeline, there is a small possibility that crude oil could contaminate the lake and/or upland areas surrounding the lake, which could pose a threat to water supplied to users of lake water. However, given the pipeline location in bedrock deep under the lakebed, combined with the use of a SCADA monitoring system, the potential for contamination of the water supply provided by Lake Sakakawea is deemed to be extremely small. Any reasonably foreseeable impacts to water supply are negligible. Since no impacts are expected, impacts would be neither detrimental nor beneficial.

Irrigation: (See discussion under Water Supply.) There would be no impacts to irrigation. Since no impacts are expected, impacts would be neither detrimental nor beneficial.

Water Quality Control: (See discussion under Water Supply.) There is a minimal risk of a leak of liquids used in the drilling process, and also a minimal risk of leaks of crude oil during the operational life of the project. However, these risks would be monitored and managed, as described in the project description. Given the depth of the proposed pipeline beneath the lake bed, the underlying bedrock in which the project would be embedded, and the safety measures used during the drilling, operation, maintenance, and decommissioning phases of the project, the risk of any material reaching the lake itself is deemed to be extremely remote. Therefore, there would be no impacts to water quality control. Since no impacts are expected, impacts would be neither detrimental nor beneficial.

Recreation: The proposed pipeline would be situated and operated deep beneath the lakebed. There would be no impacts to recreation. Since no impacts are expected, impacts would be neither detrimental nor beneficial.

Fish and Wildlife: (See above discussion under Water Supply and Water Quality Control.)

Lake Sakakawea contains one of the state’s highest-value fisheries, and provides habitat and other critical life requirements for numerous migratory and upland game birds, as well as many species of game and non-game mammals, amphibians, reptiles, and the ecosystem that sustains them. Short-term, minor impacts to local wildlife in the immediate vicinity of the

9 Corps of Engineers’ Addendum to BIA Sacagawea Pipeline Environmental Assessment entry and exit holes of the bore are anticipated, due to disturbance from the drilling process, and minor habitat impacts. These impacts would occur primarily off of Corps-managed lands.

Therefore, no significant impacts to fisheries or wildlife of Lake Sakakawea and/or the upstream and downstream reaches of the Missouri River are anticipated. (See Appendix F of the original EA for the U.S. Fish and Wildlife Service letter of concurrence relative to effects to federally-listed threatened and endangered species.)

4.0 THE AFFECTED ENVIRONMENT AND ENVIRONMENTAL CONSEQUENCES

The following resources were analyzed in the original EA and are hereby incorporated by reference: air quality, public health and safety, water resources, wetland/riparian habitat, threatened and endangered species, soils, vegetation and invasive species, cultural resources, socioeconomic conditions, and environmental justice. Additional information relevant to previously discussed resource categories is provided in the sections below.

4.1 AIR QUALITY

In section 3.2 of the original EA, historical and the most current information from the U.S. Environmental Protection Agency from 2007 to 2014 was used to analyze the project and accurately present the data on air quality. Although the air quality monitoring stations in North Dakota are not within the impact analysis area of the pipeline, these stations do provide coverage that is applicable to this analysis, given that those stations are in closest proximity to the impact analysis area.

The nearest air quality monitoring station is located in Dunn Center, North Dakota (http://airnow.gov/). The Air Quality Index (AQI) is a scale for monitoring daily air quality using a scale divided into six categories that specifies levels between Good (0-50) to Hazardous (301-500). The most current air quality data from the Dunn Center monitoring station shows a number of 25, which reflects a “good” quality of air in the area. “Good” is considered satisfactory and air pollution poses little or no risk to human health.

4.2 WETLANDS

As discussed in section 3.5 of the original EA, and Appendix C of this addendum, a total of 156 wetlands were identified within the survey area. There are 63 wetland crossings in which open trenching would be anticipated during the construction of the pipeline system. Paradigm would implement specific procedures for each type of wetland crossing method outlined in the Construction Mitigation and Reclamation Plan.

SWCA identified 156 wetlands and 25 streams within the entire project area. Sixteen of the wetlands and six of the streams have been preliminarily determined to be under the Corps’ Clean Water Act (CWA) regulatory jurisdiction. For all wetland and stream crossings, there 1 would be no placement of dredged or fill material exceeding /10 -acre, and would therefore be authorized under nationwide permit (NWP) 12 for Utility Line Activities without a pre- construction notification to the Corps district engineer. Five wetlands were identified as

10 Corps of Engineers’ Addendum to BIA Sacagawea Pipeline Environmental Assessment having a required length of crossing an area exceeding 500 feet; these wetlands would be bored under. Because wetland areas that would require a crossing of 500 feet or more would be bored under, there is no requirement to submit a pre-construction notification to the Corps pursuant to NWP 12. All criteria, general and regional conditions of the NWP would be met.

SWCA-identified USFWS wetland easements would be avoided by horizontal boring techniques and protected with proper BMP installation. Easement wetlands would be fenced 10 feet from the determined boundary of all wetland basins within USFWS wetland easement boundaries. The appropriate USFWS Wetland Management District will delineate/verify the wetland boundaries in the field prior to construction. Easement wetlands would be fenced either with lath and fluorescent ribbon or T-posts and ½-inch polyester rope. T-posts and rope would be used in areas with active cattle grazing.

BMPs would be implemented for all ground-disturbing activities, as required by the CWA. With the implementation of all the provisions of the CWA National Pollution Discharge Elimination System (NPDES), including federal requirements for implementation of adequate Spill Prevention, Control and Countermeasures during construction, no impacts to water resources are anticipated. As part of the NPDES Construction Permit, the proposed project would be engineered and constructed to minimize suspended sediment (i.e., turbidity), concentration of surface runoff, avoid disruption of drainages and avoid direct impacts to surface water.

Herbicides would not be applied within 100 feet of a wetland or waterbody. Herbicide application guidelines would be followed and applied as instructions specific to that chemical.

4.3 VEGETATION

Herbicides would be applied by applicators appropriately licensed or certified by the state in which the work is conducted. All herbicides applied prior to construction would be non- residual or would have a significant residual effect no longer than 30 days. Herbicides applied during construction would be non-residual.

4.4 WILDLIFE

See section 3.8 of the original EA for general wildlife species occurrence, issues and mitigation.

4.5 THREATENED AND ENDANGERED SPECIES

The biological assessment was received by the USFWS on February 13, 2015, with addendums received May 28 and August 4, 2015, and supporting clarification documents received August 7, 2015. The USFWS concurred with the “may affect, not likely to adversely affect” determinations for the whooping crane (Grus Americana), interior least tern (Sternula antillarum), piping plover (Charadrius melodus) and its critical habitat, and the pallid sturgeon (Scaphirhynchus albus). (See Appendix F of the original EA for the USFWS letter of concurrence relative to effects to federally-listed threatened and endangered species.)

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The biological assessment also concluded “no effect” determinations for the gray wolf (Canis lupus), black-footed ferret (Mustela nigripes), rufa red knot (Calidris canutus), Dakota skipper (Hesperia dacotae) and northern long-eared bat (Myotis septentrionalis). There is no requirement for action agencies to receive USFWS concurrence for “no effect” determinations. Thus the “no effect” determinations remains with the lead agency, the BIA.

4.6 MITIGATION AND MONITORING

Mitigation and Monitoring of the proposed pipeline is discussed further in Section 3.12 of the EA.

4.7 CUMULATIVE IMPACTS

See Section 3.15 of the EA for the full discussion on cumulative impacts.

5.0 NEPA ADEQUACY CRITERIA

This document has identified the above-mentioned previously prepared NEPA document, which, when considered with the additional analysis of impacts contained in this addendum, adequately describes the environmental consequences of the Preferred Alternative described herein, and meets the following NEPA Adequacy Criteria.

1. The Proposed Action is substantially the same action and at the site specifically analyzed in the existing NEPA document. 2. The range of alternatives is reasonable with respect to the current Proposed Action in the existing NEPA document, which appropriately considers and analyzes current environmental concerns, interests, and resource values. 3. The existing analysis and conclusions contained in the EA, when considered with the additional analysis of impacts contained in this addendum, are adequate to meet the purposes of NEPA. The analysis is valid in light of new studies or resource assessment information. 4. The methodology and analytical approach used in the existing NEPA document continue to be appropriate for the Proposed Action. 5. The direct and indirect impacts of the Proposed Action are unchanged from those identified in the existing NEPA document. 6. The cumulative impacts that would result from implementation of the Proposed Action are unchanged from those analyzed in the existing NEPA document. 7. A 30-day comment period involving public input and interagency review was used in the development of the existing NEPA document.

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APPENDIX A Resource Maps for the Proposed Sacagawea Pipeline

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Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Keene (1995) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 96W Existing Road Corps of Engineers Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 1 of 46 Projection: NAD 1983 UTM Zone 13N µ 13 18 14

33rd St NW

T. 151N, R. 95W R. 151N, T. T. 151N, R. 96W R. 151N, T.

DP1U

W

N

e

v DP2U

A

h

t

9 24

0 1 19

23

DP3U

WET5

32nd St NW BIA Rd 4

25 30 26

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Johnsons Corner (1995), Upland Swale Reservation Boundary Keene (1995) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 96W Existing Road Corps of Engineers Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 2 of 46 Projection: NAD 1983 UTM Zone 13N µ

WET6 T. 151N, R. 95W R. 151N, T.

30 25

WB1 T. 151N, R. 96W R. 151N, T.

31 36

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Johnsons Corner (1995) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 95W & Existing Road Corps of Engineers T. 151N, R. 96W Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 3 of 46 Projection: NAD 1983 UTM Zone 13N µ 31

W 32

N

e

v

A

h

t

8

0 1

36

T. 151N, R. 95W R. 151N, T. T. 151N, R. 96W R. 151N, T.

T. 151N, R. 95W 30th St NW

T. 150N, R. 95W

T. 150N, R. 95W R. 150N, T. T. 150N, R. 96W R. 150N, T.

W 5

N e

1 6 v

A

h

t

7

0 1

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Blue Buttes SE (1996), Upland Swale Reservation Boundary Johnsons Corner (1995) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 95W Existing Road Corps of Engineers Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 4 of 46 Projection: NAD 1983 UTM Zone 13N µ 28 29 BIA Rd 4 31st Ave NW 106thAve NW

32 Co Rd 14 Rd Co

33 DP4U STR1

1

0

6

t

h

A

v

e

N

W

30th St NW T. 151N, R. 95W T. 150N, R. 95W

4 5

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Blue Buttes SE (1996) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 95W Existing Road Corps of Engineers Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 5 of 46 Projection: NAD 1983 UTM Zone 13N µ STR3 34 33

STR2

T. 151N, R. 95W T. 150N, R. 95W

3 STR4 0 th S t N W

STR5

4 3

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Blue Buttes SE (1996) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 150N, R. 95W & Existing Road Corps of Engineers T. 151N, R. 95W Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 6 of 46 Projection: NAD 1983 UTM Zone 13N µ 35

34

STR7

DP5U

T. 151N, R. 95W T. 150N, R. 95W

1

0

3

r d

A

v e

N

W

STR6

2

3

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Blue Buttes SE (1996) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 95W & Existing Road Corps of Engineers T. 150N, R. 95W Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 7 of 46 Projection: NAD 1983 UTM Zone 13N µ 36

31

35

T. 151N, R. 94W R. 151N, T. T. 151N, R. 95W R. 151N, T.

STR9 DP6U

STR8 DP7U

WET7

T. 151N, R. 94W T. 151N, R. 95W T. 150N, R. 94W

T. 150N, R. 95W Fort Berthold Reservation Berthold Fort

1 T. 150N, R. 94W R. 150N, T. T. 150N, R. 95W R. 150N, T. 6 2

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Blue Buttes SE (1996) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 94W & Existing Road Corps of Engineers T. 151N, R. 95W Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 8 of 46 Projection: NAD 1983 UTM Zone 13N µ 30 29

BIA Rd 4

32

31

DP9U DP10W DP8U

DP12W

WET8 DP11U

T. 151N, R. 94W T. 150N, R. 94W

5

6

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish SW (1969), Upland Swale Reservation Boundary Blue Buttes SE (1996) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 94W Existing Road Corps of Engineers Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 9 of 46 Projection: NAD 1983 UTM Zone 13N µ 28

29

BIA Rd 4

S ta te H w y 2 2

WB2

DP13U DP14W 33 32 DP16W DP15U DP17U

WET9

T. 151N, R. 94W T. 150N, R. 94W

4 5

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish SW (1969) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 94W Existing Road Corps of Engineers Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 10 of 46 Projection: NAD 1983 UTM Zone 13N µ 27

28

DP21U

DP22U

STR10 STR12 DP18U STR13 STR11

NX1

DP20U DP29U 34

33

T. 151N, R. 94W T. 150N, R. 94W 3 4

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish SW (1969) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 94W Existing Road Corps of Engineers Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 11 of 46 Projection: NAD 1983 UTM Zone 13N µ 25 27 26

35

36

34 !'

T. 151N, R. 94W T. 150N, R. 94W

2 3 F 1 ort Be rt ho ld R e s e rv a t io n

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish SW (1969) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 94W Existing Road Corps of Engineers Survey Area Section www.swca.com McKenzie County, North Dakota Previously Boundary Inventoried Area Page 12 of 46 Projection: NAD 1983 UTM Zone 13N µ

36

T. 151N, R. 93W R. 151N, T. T. 151N, R. 94W R. 151N, T.

31

Mountrail County McKenzie County

T. 151N, R. 93W T. 151N, R. 94W T. 150N, R. 93W T. 150N, R. 94W

6 1

Fort Berthold Reservation

T. 150N, R. 93W R. 150N, T. T. 150N, R. 94W R. 150N, T.

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish SW (1969) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 93W & Existing Road Corps of Engineers T. 151N, R. 94W Survey Area Section www.swca.com Mountrail and McKenzie Counties, North Dakota Previously Boundary Inventoried Area Page 13 of 46 Projection: NAD 1983 UTM Zone 13N µ

32

W

N

e

v

h A t

31 5 9

DP24U DP25U

!' STR14

DP23U

92nd Ave NW T. 151N, R. 93W T. 150N, R. 93W

5

6

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish SE (1969), Upland Swale Reservation Boundary Sanish SW (1969) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 93W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 14 of 46 Projection: NAD 1983 UTM Zone 13N µ 32 9

4

t 33

h

A

v

e

N

W

DP26U

DP28U

DP27U

T. 151N, R. 93W 92nd Ave NW T. 150N, R. 93W

4

5

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish SE (1969) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 93W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 15 of 46 Projection: NAD 1983 UTM Zone 13N µ 28 27

31st Ave NW

34

33

STR15

WET10

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish SE (1969) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 93W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 16 of 46 Projection: NAD 1983 UTM Zone 13N µ 21

STR16

22 92nd St NW St 92nd

32nd St NW

WET12

WET11

28 27 93rd Ave 93rd

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish (1969), Upland Swale Reservation Boundary Sanish SE (1969) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 93W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 17 of 46 Projection: NAD 1983 UTM Zone 13N µ 15

14 9

2

n

d

St

N

W

WET13

23

22

21

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish (1969) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 93W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 18 of 46 Projection: NAD 1983 UTM Zone 13N µ 3 2

STR18

WET16

WET15

WET14

10

W STR17

N e

v 11

A

d

n

2 9

14 15

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish (1969) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 151N, R. 93W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 19 of 46 Projection: NAD 1983 UTM Zone 13N µ 35 36

34

T. 152N, R. 93W T. 151N, R. 93W

1

W

N

e v

A 2 d

3 n

2 9

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish (1969) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 152N, R. 93W & Existing Road Corps of Engineers T. 151N, R. 93W Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 20 of 46 Projection: NAD 1983 UTM Zone 13N µ 26 25

37th St NW

DP29U

35

36

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sanish (1969) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 152N, R. 93W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 21 of 46 Projection: NAD 1983 UTM Zone 13N µ 19 20

24

West Ave West

T. 152N, R. 92W R. 152N, T. T. 152N, R. 93W R. 152N, T.

29

DP35U W

DP33U N 25 e

DP34W 30 v A

DP32W h t

WET18 9 8

DP31U WET17 DP30W

37th St NW

31 32 36

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: New Town (1981), Upland Swale Reservation Boundary Sanish (1969) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 152N, R. 92W & Existing Road Corps of Engineers T. 152N, R. 93W Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 22 of 46 Projection: NAD 1983 UTM Zone 13N µ 21

20 East Ave East

29

DP36U

28

West Ave West WET19 College Dr College

30

W

N

e

v

A

h

t

9 8

37th St NW

32 33

31

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: New Town (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 152N, R. 92W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 23 of 46 Projection: NAD 1983 UTM Zone 13N µ WET26

8

7

t

h

A

v

e

N

W

WET25 STR19

WET24

22

21

WET23

WET22

WET21

WET20 DP38U

DP37U

27

28

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: New Town (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 152N, R. 92W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 24 of 46 Projection: NAD 1983 UTM Zone 13N µ STR20

WET27 W

N 14

e v

A 15

h

t

7 8

16

UPS1

State Hwy 23

23 22

21

WET26

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: New Town (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 152N, R. 92W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 25 of 46 Projection: NAD 1983 UTM Zone 13N µ 3 2 4

WET28 DP40U

DP39U

11

Fort Berthold Reservation

10

9

STR21

W N e v A th 7 8

16 15 14

STR20

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden SW (1981), Upland Swale Reservation Boundary New Town (1981) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 152N, R. 92W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 26 of 46 Projection: NAD 1983 UTM Zone 13N µ DP42U 32

31

T. 153N, R. 91W

T. 152N, R. 92W

W

N

e

v

A

d

r

3 8

2

WET30

3 WET31

DP41U

WET29

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden SW (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 153N, R. 91W & Existing Road Corps of Engineers T. 152N, R. 92W Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 27 of 46 Projection: NAD 1983 UTM Zone 13N µ 28 29

30 DP45U

DP44U

WET33

DP43U

33

NX2

31 32

WET32

8

3

r

d

A

v

e

N

W

DP42U

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden SW (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 153N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 28 of 46 Projection: NAD 1983 UTM Zone 13N µ

WET36

W

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v A

d 21 n

20 2 8

WET35

44th St NW

WET34

28 29

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden SW (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 153N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 29 of 46 Projection: NAD 1983 UTM Zone 13N µ 8 9 46 WET41 th St NW

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16 WET40

15

17

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v

A

d

n 2

8 NX3

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DP46U WET38

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W 22 N

20 e

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s

1 8

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden SW (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 153N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 30 of 46 Projection: NAD 1983 UTM Zone 13N µ 3

4

WET43

10

9

DP47U

15

16

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden SE (1981), Upland Swale Reservation Boundary Belden SW (1981) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 153N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 31 of 46 Projection: NAD 1983 UTM Zone 13N µ WET50 WET49

WET48

34 33

WET47

DP49U

T. 154N, R. 91W 48th St NW T. 153N, R. 91W

WET46

WET45 3 4

DP48U WET44

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden SW (1981), Upland Swale Reservation Boundary Belden SE (1981) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 154N, R. 91W & Existing Road Corps of Engineers T. 153N, R. 91W Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 32 of 46 Projection: NAD 1983 UTM Zone 13N µ NX4

27

28

DP50U WET52

49th St NW

WET51

33 34

WET50 WET49

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Sikes Dam (1981), Upland Swale Reservation Boundary Belden SW (1981) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 154N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 33 of 46 Projection: NAD 1983 UTM Zone 13N µ 15 WET56

16 51st St NW

DP52U

WET57 STR22 DP51U

22

WET55

21

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50th St NW

27 WET53

28

NX4

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden (1981), Upland Swale Reservation Boundary Sikes Dam (1981) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 154N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 34 of 46 Projection: NAD 1983 UTM Zone 13N µ WET62

10 11

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DP53U

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WET58 State Hwy 8 Hwy State

14

15

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51st St NW 22 23

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 154N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 35 of 46 Projection: NAD 1983 UTM Zone 13N µ WET79

DP55U

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2

3

WET76 WET75

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11

10 WET67 State Hwy 8 Hwy State

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WET62

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 154N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 36 of 46 Projection: NAD 1983 UTM Zone 13N µ WET92

WET91

WET90

WET89

WET88

35 DP56U

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WET86

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WET84

WET83 State Hwy 8 Hwy State WET82 T. 155N, R. 91W 54th St NW T. 154N, R. 91W

WET81

3 2

WET80

WET79

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 155N, R. 91W & Existing Road Corps of Engineers T. 154N, R. 91W Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 37 of 46 Projection: NAD 1983 UTM Zone 13N µ WET103 23 22

56th St NW

DP57U

WET102

WET101 WET100 WET99

WET98

S

t WET97 a t

e

H

w

y 8

WET97

27

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WET95 26

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55th St NW

35

34 WET92

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 155N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 38 of 46 Projection: NAD 1983 UTM Zone 13N µ DP58U

15 14

WET109

57th St NW

WET108

WET107

22

23

WET106

WET105

WET104

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Belden (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 155N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 39 of 46 Projection: NAD 1983 UTM Zone 13N µ DP70U DP71W WET114 WET117 DP65W DP68U DP64U DP69W DP66U WET116 DP67W WET115 WET113 DP63W DP62U

WET112 DP61W

DP60U

11 10

WET111

DP59U Co Rd 22 58th St NW

14 15

WET110

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Stanley SE (1981), Upland Swale Reservation Boundary Belden (1981) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 155N, R. 91W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 40 of 46 Projection: NAD 1983 UTM Zone 13N µ DP88U

DP87W 35

34 WET124

DP85W T. 156N, R. 91W T. 155N, R. 91W DP86U

DP83W DP84U

DP79W DP81W DP78U DP80U DP82U

2 WET122

3 WET123

WET121

DP76U DP77W WET120 59th St NW DP75W WET119 DP74U DP72U 11 DP73W 10

WET118

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Stanley SE (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 155N, R. 91W & Existing Road Corps of Engineers T. 156N, R. 91W Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 41 of 46 Projection: NAD 1983 UTM Zone 13N µ 26 25 DP101W DP103W DP102U DP104U

WET130 WET131 WET129 DP105U

WET128 DP99W DP100U DP98W

DP93W DP97U DP94U

DP96U WET127 DP95W

DP92U DP91W 36 WET126

DP90U 35 DP89W

WET125

DP88U

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WET124

T. 156N, R. 91W DP85W T. 155N, R. 91W DP86U

1 2

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Stanley SE (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 155N, R. 91W & Existing Road Corps of Engineers T. 156N, R. 91W Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 42 of 46 Projection: NAD 1983 UTM Zone 13N µ 25

30

DP115W WET135 DP116U DP110W DP112U DP111U DP108W DP106W DP109U DP107U DP114U WET134 DP113W

WET133

WET132

T. 156N, R. 90W R. 156N, T. T. 156N, R. 91W R. 156N, T.

31 36

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Stanley SE (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 156N, R. 91W & Existing Road Corps of Engineers T. 156N, R. 90W Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 43 of 46 Projection: NAD 1983 UTM Zone 13N µ 28 29

30

DP123W DP117W WET139 DP118U DP124U WET136

WET140 WET137 DP122U DP125W DP119U DP121W DP126U DP120W WET138

33 32

31

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Stanley SE (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 156N, R. 90W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 44 of 46 Projection: NAD 1983 UTM Zone 13N µ 21

22 20 WET146

DP146U DP145W

27

W

N e

DP144U v

A h

DP143W t

5 7 DP141W WET145 DP142U

DP140U DP137W DP139W DP138U

28 WET144 29

WET143 DP135W

DP136U

DP134U

DP132W DP123W WET139 DP124U DP133U DP129U

WET141 WET142 WET140 DP125W DP127W DP130W 33 DP131U 32 DP126U DP128U

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Stanley SE (1981) Upland Swale Reservation Boundary Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 156N, R. 90W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 45 of 46 Projection: NAD 1983 UTM Zone 13N µ DP155U WET149 DP154W 15

16 US Hwy 2

WET148 DP153U DP152W

DP151U

DP150U

DP149W

WET147

21 DP147W

7

5 DP148U

t

h

A

v e 22

N

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WET146

DP145W 27 DP146U 28

Sacagawea Pipeline Kilometers Bore Wetland Township/Range 0 0.25 0.5 !' Location Boundary Stream Upland County # Data Point Waterbody Boundary Miles Wetland Woody Vegetation 0 0.25 0.5 # Data Point Noxious Weed Proposed 116 North 4th Street Pipeline System Wetland Easement Suite 200 Base Map: 2014 Aerial Imagery Ephemeral Stream Grassland Easement Bismarck, ND 58501 Source: USDA/FSA - Aerial Photography Field Office Quadrangle: Stanley SE (1981), Upland Swale Reservation Boundary Palermo (1981) Bore Path Phone: 701.258.6622 U.S. Army Fax: 701.258.5957 Township/Range: T. 156N, R. 90W Existing Road Corps of Engineers Survey Area Section www.swca.com Mountrail County, North Dakota Previously Boundary Inventoried Area Page 46 of 46 Projection: NAD 1983 UTM Zone 13N µ Corps of Engineers’ Addendum to BIA Sacagawea Pipeline Environmental Assessment

APPENDIX B Technical Supplement Additions

Applicant’s Technical Supplement

1 PURPOSE This technical supplement to the Applicant’s permit request addresses certain requirements for information outlined in Appendix F of the Oil and Gas Management Plan developed for the Garrison Project, ND. Responses provided herein are a combined effort of the project execution team:

Applicant -- Sacagawea Pipeline Company, LLC (a joint venture between Paradigm Pipeline, LLC, and Grey Wolf Midstream, LLC.)

Grey Wolf Midstream, LLC is a wholly-owned entity of Missouri River Resources.

Paradigm Pipeline, LLC is a joint venture of Paradigm Energy Partners, LLC and Phillips 66.

Engineering Design – J.D. Hair & Associates, Inc. (“JDH”).

Construction – Michels Directional Crossings, a Division of Michels Corporation (“MICHELS”).

2 DESIGN AND CONSTRUCTION TEAM Applicant retained JDH to provide design services for the two pipeline crossings of Lake Sakakawea. The statement of qualifications for JDH is included as Attachment A.

Applicant selected MICHELS to provide construction services to perform the directional drills across Lake Sakakawea and to pull into place the two pipelines. The statement of qualifications for MICHELS is included as Attachment B.

JDH and MICHELS are both leading experts in their respective fields. Their selection to perform the design and construction services for these two crossings was based on their experience alone.

3 INTENT OF DIRECTIONAL DRILLING The two separate directionally drilled holes beneath Federal property and Lake Sakakawea are required to allow installation of a segment of the Sacagawea Pipeline Company’s steel crude oil pipeline and a segment of its future steel natural gas pipeline.

4 PLAN AND SECTION DRAWINGS Plan and section drawings of the pipeline crossings are provided in Attachment C. Sheet No. 1 provides details for the North 16-inch crude oil pipeline and Sheet No. 2 provides details for the South 16-inch gas pipeline. The drill entry and exit points for the North and South crossing will be located no more than 20 feet apart. Note that these drawings indicate the proposed entry and exit points for the directional drills

1

are located on private property outside the property controlled by the Garrison Project Corps of Engineers.

The western entry / exit point is approximately 1,860 feet west of the limits of Corps property.

The eastern entry / exit point is approximately 1,500 feet east of the limits of Corps property.

Access to entry and exit points will occur on private lands outside the limits of Corps property. The names of affected private landowners are indicated in the plan and section drawings.

The finished diameter of the pilot hole is approximately 14 inches. Pilot hole is drilled with 6-5/8 inch diameter drill stem using a 12-3/4 in diameter drill bit. The average length of a drill stem joint is 31.5 feet.

The diameter of the finished hole is 24 inches. MICHELS plans to perform the ream in one single pass.

5 DESCRIPTION OF THE DRILLING RIGS & STRESS CALCULATIONS MICHELS proposes the use of two different rigs to perform the directional drills and pipe-pull operations.

Rig #1 – Michels ATLAS 840 – 840,000 lbs. thrust/pull capacity.

Rig #2 – Michels DD-220 – 220,000 lbs. thrust/pull capacity.

Reference Attachment D for additional rig details.

Note that Rig #1 will pull the pipe string.

JDH prepared stress calculations based on a “worse case” scenario of the South crossing. The worst case scenario assumed is the South crossing being installed 100 feet longer at the entry/exit sites, 100 feet deeper along the bottom tangent, steeper entry/exit angles and a minimum radius of 650 feet. The results of JDH work indicates a maximum calculated pulling load of 361,090 lbs. (reference JDH summary of stress calculations for the South crossing included at the end of Attachment D).

6 LOCATION OF DRILL RIGS AND SUPPORTING EQUIPMENT The site plan included in Attachment C indicates the location of the bore entry/exit points. Rig #1 will be located on the west side of the lake and Rig #2 will be located on the east side of the lake.

Attachment E provides general details of the temporary construction area required to stage drilling rigs and support equipment. Applicant has secured use rights for this temporary construction area and ingress and egress to the temporary construction area from the private landowners. All temporary construction area and activities are within the resource survey corridor.

2

7 LOCATION OF PIPE LAYOUT AREA (DRAWINGS) Applicant will use temporary construction easement on the east side of the lake to perform line pipe fabrication, testing and staging for pull back operations. There will be two pull sections, each approximately one half of the total length of the directionally drilled crossing.

Attachment F provide details of the temporary construction easement area secured from the private landowners.

8 DRILLING MUD SYSTEM & FLUID MANAGEMENT PLAN Selection and proper utilization of the drilling fluid is essential to the success of any HDD. MICHELS will use a bentonite / water mixture as the drilling fluid, or mud, system. The expected ratio of water to bentonite is approximately 96 % water to approximately 4% bentonite. Attachment G describes the fluid management, recycling and disposal plan proposed for this project. Water for mixing the drilling fluid will be purchased from a water source in New Town. The disposal of solids recovered from the drilling operations will be hauled to the Applicant’s property located approximately 2 miles south of Keene, ND. The recovered solids will be allowed to dry and then incorporated into the grading plan for the site.

9 EXPERIENCE OF DRILL CREW An organization chart of key MICHEL’s personnel and their relevant skills and experience is included at the end of Attachment B.

10 PIPELINE MATERIAL The steel pipe for the crude oil and gas pipelines is 16-inch o.d. x 0.500-inch wall, Grade 60 carbon steel. This pipe material was manufactured to API-5L standard, 45th edition, PSL2 supplement (meets the requirements of the 44th edition). The pipe material has a minimum yield strength of 60,000 psi.

The pipe is coated with a plant-applied fusion bonded epoxy coating system with a secondary abrasion- resistant overcoat. Primary coating thickness is 14 – 16 mils and the secondary abrasion overcoat is a minimum thickness of 30 mils. The field welds shall be blasted and coated with a Two Part Epoxy Coating system that is compatible with the plant applied fusion bonded coating system and a two part abrasion overcoat to protect the field joint coating during the pulling operation.

The steel pipe material selected will exceed applicable code requirements to allow a maximum allowable operating pressure of 1440 psig under the following industry codes:

Gas Line: 49CFR Part 192 & ASME/ANSI B31.8 (November 30, 2007)

Crude Oil Line: 49CFR Part 195 & ASME/ANSI B31.4 (October 20, 2006)

Additionally, the steel pipe selected provides the required strength to safely resist the tensile and bending stresses anticipated during the pullback operation. Included at the end of Attachment D is a

3

summary of the anticipated installation stresses of the deepest crossing (South crossing). Again, it should be noted that the JDH stress calculations assumed a greater length, depth and entry/exit angles than shown on Sheet No. 2 – South 16-inch Gas Pipeline included in Attachment C.

The drawings in Attachment C indicate that the pilot hole for the crude oil pipeline to be installed 100 feet below the surveyed bottom (established by echo soundings) of the river channel. The gas pipeline is located approximately 40 feet below the installed depth of the crude oil pipeline. Stress analysis calculations based on a “worse case” scenario of 100 feet below the designed drilled path of the gas pipeline indicate that both lines could be installed deeper if needed. (Refer to the JDH stress calculations for the worst case scenario for the South crossing provided at the end of Attachment D).

The individual joints of steel line pipe are joined by a full-penetration butt weld. Welds are made in accordance with a qualified welding procedure and using welders qualified by destructive testing.

All welding procedures and welder qualifications are performed in accordance with the requirements for gas lines and crude oil lines as referenced above and in accordance with the requirements of API Standard 1104 (20th edition, October 2005, errata/addendum (July2007), and errata 2 December 2008). All welds joining individual joints of pipe are inspected visually and by radiographic methods as outlined in API-1104.

Prior to pulling the line pipe into the directionally-drilled hole, the welded joints of pipe are subjected to a post-fabrication hydrostatic test at a minimum pressure of 1,800 psig. This pressure is held for a minimum of 1 hour to verify the mechanical strength of the pipe and the welded joints.

After the pipe is pulled into the directionally-drilled hole, the completed pipe crossing the lake is subjected to a second in-place hydrostatic test to insure mechanical integrity. This test consists of a strength test for a duration of 4 hours and a leak test for a duration of 4 hours.

Prior to placing the crossing pipe in service, the completed string of pipe is subjected to two inspections with pipeline pigging equipment. One inspection is performed with a geometry tool to verify no dents or buckles exist. The second inspection is performed with a metal-loss tool to verify that no metal loss occurred during the pipe pulling operation. The Lake Crossing shall be inspected using a pig with a gauging plate to determine if any dents exist. Then, a combination Caliper Tool/MFL Tool Internal Inspection Tool shall be pulled through the crossing to determine if there are any dents/gouges and measured. If any damage is detected, the level of damage shall be evaluated based on the design criteria of the pipeline and the CFR 195 Code. Results will determine if the operating pressure of the crossing requires lowering or abandon the crossing. Then, the second crossing shall be installed.

11 PILOT HOLE TRACKING SYSTEM MICHELS will utilize a combination of methods to track the progress of the pilot heads while performing the HDD pilot holes. Attachment H describes the Magnetic Guidance System with secondary Para- Tracking system in combination with gyroscopic tracking technology proposed.

4

12 HAND-HOLES OR MANHOLES No manholes or hand-holes are planned. Drill entry and exit points are significantly higher in elevation than the water surface (reference Attachment C).

13 BOREHOLE DIAMETER Pilot hole finished diameter is 14 inches.

Final or finished hole diameter is approximately 24 inches

14 GEOTECHNICAL INVESTIGATIONS The Applicant’s proposed crossing of Lake Sakakawea is generally on the same alignment as a previously proposed ONEOK gas pipeline. Through discussions with ONEOK it was learned that ONEOK did not perform any geotechnical work on the lake portion of their proposed alignment before they abandoned pursuit of the crossing. ONEOK determined that their project was not commercially feasible.

JDH retained Barr Engineering Company (“BARR”) to perform a desktop study to identify the geology and possible geologic hazards along the proposed directional drill alignment. As part of the desktop review, Barr reviewed the results of several (14) driller’s logs from water wells and other geotechnical bores in the vicinity of the proposed alignment. Depths of these water wells and geotechnical bores ranged from 103 feet to 1,620 feet. The Barr study was completed in May 2014 and presented to JDH.

BARR’s Executive Summary stated:

“The proposed project does not appear to face significant geologic/geotechnical hazards specifically related to the planned drill. Due to the drill alignment being of such great length, hazards related to the approach and management of the drill process are possible. Possible geotechnical hazards include unstable ground on the valley sides, potential for encountering undocumented underground coal mines, presence of cobbles and boulders in the till, presence of methane in the coal beds, and varying competency and strength of the bedrock”

The potential hazards identified, although possible, are believed to be insignificant to the success of the drill. All directional drills involve some level of risk due to unknown subsurface conditions or reactions.

To address the potential of unstable ground on the valley sides, the entry and exit points for the drill are located well away from the top sides of the valley on each side. Only pedestrian traffic is required on the sides of the valley.

Regarding the remaining potential hazards identified:

• Potential for encountering undocumented underground coal mines – we believe this to be a very insignificant risk, but if encountered, the drill path would be re-drilled to avoid the mine. • Presence of cobbles and boulders in the till – this is common for directional drills where glacial till is present. If encountered, this can easily addressed by adjusting drilling procedures.

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• Presence of methane in a coal bed – we believe this to be an insignificant possibility, but if encountered would be addressed with first increasing the mud density and secondarily, setting surface casing at the entry point and route the gas vapors to a safe location. • Varying competency and strength of bedrock – this is a common occurrence where bedrock is penetrated and is dealt with routinely, if necessary, by adjusting drilling procedures. • Unknown geologic conditions – this is a common risk for any directional drill. Applicant has selected Michels as our drilling contractor based solely on their experience in handling these unknown conditions. • Unknown depth of the alluvium – the drill design allows increasing the depth to more than twice proposed. We believe this flexibility in changing the depth of the drill path is preferred versus performing multiple geotechnical bores in the lake to try to identify the deepest part of the alluvium. MICHELS has expressed concern with additional geotechnical bores creating pathways for potential fluid losses, especially since both bores must be placed in a narrow corridor.

To address further address these potential hazards, JDH used the BARR desktop study and a preliminary crossing design to solicit proposals from two contractors – Michels Directional Crossing and Laney Directional Drilling. In addition to providing budget pricing and estimates of schedules, the contractors were asked to comment on the feasibility of constructing the crossing and to identify if further geotechnical investigation was required. Neither contractor expressed concerns with the potential hazards. Furthermore, neither contractor expressed a need for further geotechnical investigation to determine the feasibility of the drill.

Subsequent to receiving proposals from the two drilling contractors, Applicant obtained and reviewed the results of the geotechnical investigation performed by Braun Intertec Corporation for the Four Bears Bridge project.

Upon being made aware of the Garrison Project report, Applicant conducted an additional geotechnical investigation with two bores. These bores were located on private property just outside the Corps property on each side of the lake.

The desktop study performed by Barr was updated in January 2015. The most recent desktop study and the report summarizing the recent geotechnical investigation conducted in early January 2015 are included in Attachment I.

15 RESTORATION OF DRILL ENTRY AND EXIT EXCAVATIONS Restoration of drill entry and exit excavations as well as access easements to these locations will be restored in accordance with the private landowner easement agreements.

16 AFFECTED PROPERTY INTERESTS Private and public property owners directly affected by the directional drill and pull back operations are noted on the drawings included in Attachments C, E & F.

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17 CORPS REAL ESTATE REQUIREMENTS Attachment J includes plats indicating the location and size of easements requested from the Garrison Project Corps of Engineers for the two pipelines.

Although all drilling operations and pipe pull back operations are conducted on private lands outside the Corps take, Applicant requests pedestrian access to the Corps lands on each side of the lake.

The directional drill guidance or tracking system requires the placement of guide wires along the centerline of the proposed drill alignment and an offset line parallel to the centerline of the proposed drill alignment. The offset guide wires are placed approximately 300 feet to the north of the centerline of the proposed drill alignment. . These guide wires would be placed by personnel walking over the surface of the Corps property. No surface disturbance is required for this operation; although, some hand trimming of tree limbs and shrubs may be required to provide a clear line of sight to facilitate the laying of the guide wires.

18 DRILL PATH LOCATION RELATIVE TO LEVEES There are no levees on either side of the lake at the proposed crossing points.

19 HYDRO-FRACTURE ANALYSIS Based upon the geotechnical investigation performed by Barr in early January 2015 and the work performed by Braun Intertec Corporation for the Four Bears Bridge project, JDH prepared a hydro- fracture analysis for the crossing alignment. JDH has assigned a low to moderate level of risk of hydro- fracture due to drilling operations exceeding the confinement pressure of the sub-surface soils. The results of the JDH analysis is provided in Attachment K.

It should be noted that a representative from JDH will be on-site during the performance of the drilling and pull back of the crossing pipe. JDH, as design engineer, will monitor the progress and path of the pilot drill for compliance with the design specifications. During pull back operations, JDH will monitor the pulling force exerted on the crossing pipe. JDH will have complete authority to stop any and all drilling or pull back activities.

20 CONTINGENCY PLAN FOR INADVERTENT RELEASE MICHELS has prepared a contingency plan for the prevention and response to an inadvertent release of drilling fluids. Attachment L provides the details of the contingency plan.

21 ABANDONED / UNSUCCESSFUL BORES Any misdirected or unsuccessful bores will be abandoned in place by installation of a cement-bentonite grout mixture.

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22 MITIGATION OF LEAKS & LEAK DETECTION Applicant has performed and/or planned the following actions to mitigate the risk of a leak developing during operation of the HDD crossing pipe:

• Pipe design o The pipe material selected for the crossing could be operated at a pressure of 2,700 psig and still be in compliance with 49CFR Parts 195.106 & 195.406. o Maximum operating pressure will be limited to 1,440 psig (53% of allowable). • Strength testing o Pipe material will be subjected to a strength test immediately prior to pulling into the crossing. This strength test will be at least 1 hour in duration. o The completed crossing will be subjected to a post-installation strength test. The post- installation strength test will be at least 4 hours in duration. o Both strength tests will be performed at a minimum pressure of 1,800 psig (125% greater than maximum operating pressure). • Internal inspection o Prior to placing the crossing pipe in service, the completed crossing pipe will be subjected to internal inspection with a geometry tool. This tool will identify any dents or buckles in the pipe as a result of the installation. o If the geometry tool inspection is accepted, the crossing pipe will be inspected with a metal-loss tool. This tool will identify any metal loss that occurred during installation. Metal loss would be the result of scratches or grooves to the external pipe surface. All indications found will be analyzed for compliance with defects allowed by the governing code. Defects found that are not within the guidelines of the governing code will required abandonment of the crossing pipe. • External coating and cathodic protection o The crossing pipe is coated with a plant applied fusion-bonded epoxy coating material with an additional 30 mils of an abrasion overcoat to provide protection during the pipe pull operations. o Post-construction, the crossing pipe will be protected with an impressed current cathodic protection system to mitigate the effects of external corrosion. • Automated mainline block valves o The crossing pipe is designed with isolation valves on each side of the lake crossing. o These two valves are designed to be remotely actuated by the Phillips 66 control room located in Bartlesville, OK. The remotely operated isolation valves located on each side of the lake crossing can be operated manually at each valve. o The Phillips 66 control room is manned 24/7/365. • Mechanical check valve o A mechanical check valve will be installed on the east side of the lake crossing. o The mechanical check valves will prevent backflow of product into the lake crossing from the east.

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During operation, the crossing pipe will be monitored by the Phillips 66 control room on a 24/7/365 basis. The control room operators are monitoring the following real-time data to detect a leak in the pipeline:

• Meter in / Meter out o The primary means of detecting a leak in the pipe system to measure product delivery into and out of the pipeline. As long as the metered volumes are within the accuracy of the measurement devices, the operator can safely assume that there is no leak in the system. Sacagawea measurement standard is +/- 0.25%. Typical systems perform at <0.1%. • Pressure & temperature measurement profiles o Once system flow is established, the control room operators will note the pressure and temperature of the flowing product. o Flowing pressures and temperatures will be measured at the two isolation valves on each side of the crossing pipe. o A pressure and temperature profile will correspond to a particular rate of flow. The control room operators will monitor, or trend, the pressure and temperature data from the two isolation valves. Deviations from this trend will signal the possibility of a leak. Temperature instruments are periodically calibrated to a standard of +/- 0.5 degrees Fahrenheit. Pressure instruments are periodically calibrated to a standard of the greater of +/- 0.25% of span or 4 psi.

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Corps of Engineers’ Addendum to BIA Sacagawea Pipeline Environmental Assessment

APPENDIX C Wetland and Waterbody Acreage Tables

Table 1. Wetlands within the Survey Area

Acres of Length of Total Feature USACE Dredged/Fill Required Type Recorded ID Jurisdiction* Placement Crossing Size (acres) (feet) WET1 Seasonal Isolated 0.06 0.00000 0 Likely WET2 Seasonal 0.08 0.00122 13 Jurisdictional Likely WET3 Seasonal 0.05 0.00000 0 Jurisdictional WET4 Seasonal Isolated 0.27 0.00000 0 Likely WET5 Seasonal 0.33 0.00000 47 Jurisdictional WET6 Permanent Isolated 1.09 0.00300 22 WET7 Seasonal Isolated 0.07 0.00000 0 Likely WET8 Semipermanent 0.09 0.00000 16 Jurisdictional Likely WET9 Semipermanent 1.95 0.00000 47 Jurisdictional WET10 Seasonal Isolated 0.20 0.00000 0 WET11 Semipermanent Isolated 0.12 0.00000 0 Likely WET12 Permanent 1.32 0.00000 0 Jurisdictional Likely WET13 Semipermanent 0.14 0.00000 2 Jurisdictional Likely WET14 Semipermanent 0.49 0.00533 58 Jurisdictional Likely WET15 Semipermanent 0.01 0.00000 0 Jurisdictional Likely WET16 Semipermanent 0.08 0.00000 0 Jurisdictional WET17 Semipermanent Isolated 0.06 0.00000 0 Likely WET18 Seasonal 0.34 0.00688 75 Jurisdictional WET19 Seasonal Isolated 0.23 0.00072 9 WET20 Semipermanent Isolated 0.12 0.00000 0 WET21 Permanent Isolated 1.78 0.02299 253 WET22 Permanent Isolated 3.29 0.03765 409 WET23 Seasonal Isolated 0.39 0.00000 65 WET24 Semipermanent Isolated 0.34 0.00000 0 WET25 Semipermanent Isolated 0.34 0.00767 83 WET26 Semipermanent Isolated 2.59 0.00000 580 Likely WET27 Semipermanent 0.10 0.00000 0 Jurisdictional Likely WET28 Semipermanent 2.48 0.01685 185 Jurisdictional WET29 Semipermanent Isolated 0.15 0.00000 0 Likely WET30 Seasonal 0.26 0.00350 38 Jurisdictional Acres of Length of Total Feature USACE Dredged/Fill Required Type Recorded ID Jurisdiction* Placement Crossing Size (acres) (feet) Likely WET31 Semipermanent 0.33 0.00000 0 Jurisdictional Likely WET32 Permanent 0.16 0.00141 15 Jurisdictional Likely WET33 Permanent 0.23 0.00262 28 Jurisdictional Likely WET34 Permanent 1.59 0.00000 0 Jurisdictional Likely WET35 Permanent 0.95 0.00000 0 Jurisdictional Likely WET36 Semipermanent 0.35 0.00433 48 Jurisdictional WET37 Seasonal Isolated 0.08 0.00005 10 WET38 Seasonal Isolated 0.15 0.00364 39 WET39 Semipermanent Isolated 0.16 0.00430 47 Likely WET40 Semipermanent 0.31 0.00351 38 Jurisdictional WET41 Seasonal Isolated 0.10 0.00000 0 WET42 Semipermanent Isolated 1.05 0.02166 235 WET43 Seasonal Isolated 0.06 0.00000 15 WET44 Permanent Isolated 0.58 0.00000 0 WET45 Seasonal Isolated 0.19 0.00000 0 WET46 Semipermanent Isolated 0.16 0.00000 0 WET47 Permanent Isolated 1.78 0.02788 303 WET48 Semipermanent Isolated 0.61 0.02444 266 WET49 Permanent Isolated 0.57 0.00000 0 WET50 Semipermanent Isolated 0.44 0.00000 0 WET51 Semipermanent Isolated 2.05 0.02439 265 WET52 Semipermanent Isolated 0.06 0.00000 0 WET53 Semipermanent Isolated 0.07 0.00000 0 Likely WET54 Semipermanent 0.32 0.00565 61 Jurisdictional WET55 Permanent Isolated 0.49 0.00729 80 WET56 Semipermanent Isolated 0.53 0.00452 48 WET57 Semipermanent Isolated 0.17 0.00000 0 WET58 Seasonal Isolated 0.06 0.00368 40 WET59 Semipermanent Isolated 0.30 0.00000 0 WET60 Semipermanent Isolated 0.79 0.01341 146 WET61 Permanent Isolated 0.87 0.00269 30 WET62 Permanent Isolated 3.08 0.04068 442 WET63 Semipermanent Isolated 0.12 0.00000 0 WET64 Semipermanent Isolated 0.05 0.00000 0 WET65 Permanent Isolated 0.08 0.00000 0 Acres of Length of Total Feature USACE Dredged/Fill Required Type Recorded ID Jurisdiction* Placement Crossing Size (acres) (feet) WET66 Semipermanent Isolated 0.28 0.00000 0 WET67 Permanent Isolated 0.34 0.00000 0 WET68 Seasonal Isolated 0.02 0.00000 0 WET69 Semipermanent Isolated 0.05 0.00566 61 WET70 Semipermanent Isolated 0.08 0.00000 0 WET71 Permanent Isolated 0.75 0.00671 73 WET72 Semipermanent Isolated 1.72 0.00000 0 WET73 Seasonal Isolated 0.22 0.00000 0 WET74 Permanent Isolated 0.26 0.00732 80 WET75 Permanent Isolated 1.32 0.01480 160 WET76 Semipermanent Isolated 0.17 0.00575 62 WET77 Permanent Isolated 0.37 0.00000 0 WET78 Semipermanent Isolated 0.03 0.00000 0 WET79 Permanent Isolated 0.22 0.00000 0 WET80 Permanent Isolated 0.07 0.00000 0 WET81 Semipermanent Isolated 0.01 0.00000 0 WET82 Seasonal Isolated 0.08 0.00000 0 WET83 Seasonal Isolated 0.01 0.00000 0 WET84 Semipermanent Isolated 0.30 0.00448 48 WET85 Semipermanent Isolated 0.16 0.01179 63 WET86 Semipermanent Isolated 0.35 0.00139 15 WET87 Semipermanent Isolated 0.10 0.00000 0 WET88 Semipermanent Isolated 0.68 0.00000 0 WET89 Permanent Isolated 3.03 0.01272 140 WET90 Permanent Isolated 2.64 0.01065 115 WET91 Permanent Isolated 0.09 0.00000 0 WET92 Permanent Isolated 1.02 0.01310 142 WET93 Permanent Isolated 0.93 0.00000 0 WET94 Permanent Isolated 0.25 0.00000 0 WET95 Permanent Isolated 1.00 0.01762 191 WET96 Seasonal Isolated 0.06 0.00000 0 WET97 Seasonal Isolated 0.04 0.00000 0 WET98 Permanent Isolated 2.17 0.02737 412 WET99 Permanent Isolated 0.08 0.00000 0 WET100 Semipermanent Isolated 0.19 0.00000 0 WET101 Semipermanent Isolated 0.10 0.00000 0 WET102 Semipermanent Isolated 0.39 0.00302 32 WET103 Permanent Isolated 0.70 0.00000 0 WET104 Permanent Isolated 7.38 0.08497 912 WET105 Seasonal Isolated 0.19 0.00000 0 Acres of Length of Total Feature USACE Dredged/Fill Required Type Recorded ID Jurisdiction* Placement Crossing Size (acres) (feet) WET106 Semipermanent Isolated 0.03 0.00000 0 WET107 Permanent Isolated 0.22 0.00000 0 WET108 Semipermanent Isolated 0.06 0.00000 0 WET109 Semipermanent Isolated 0.18 0.00000 0 WET110 Semipermanent Isolated 0.10 0.00000 0 WET111 Semipermanent Isolated 0.12 0.00000 0 WET112 Seasonal Isolated 0.18 0.00258 28 WET113 Semipermanent Isolated 0.07 0.00000 0 WET114 Seasonal Isolated 0.08 0.00000 0 WET115 Seasonal Isolated 0.10 0.00000 0 WET116 Seasonal Isolated 0.06 0.00000 0 WET117 Semipermanent Isolated 0.04 0.00000 0 WET118 Seasonal Isolated 0.04 0.00000 0 WET119 Seasonal Isolated 0.05 0.00000 0 WET120 Semipermanent Isolated 0.41 0.00314 34 WET121 Seasonal Isolated 0.04 0.00000 0 WET122 Seasonal Isolated 0.05 0.00000 0 WET123 Semipermanent Isolated 0.57 0.00510 55 WET124 Permanent Isolated 0.88 0.00654 40 WET125 Semipermanent Isolated 0.03 0.00000 0 WET126 Semipermanent Isolated 1.88 0.01580 172 WET127 Seasonal Isolated 0.02 0.00000 0 WET128 Seasonal Isolated 0.12 0.00399 43 WET129 Seasonal Isolated 0.19 0.00281 30 WET130 Seasonal Isolated 0.24 0.00000 0 WET131 Semipermanent Isolated 0.25 0.00000 0 WET132 Seasonal Isolated 0.53 0.00734 79 WET133 Semipermanent Isolated 1.82 0.04452 484 WET134 Seasonal Isolated 0.01 0.00000 0 WET135 Seasonal Isolated 0.14 0.00000 0 WET136 Seasonal Isolated 0.19 0.00000 0 WET137 Semipermanent Isolated 2.40 0.04724 507 WET138 Seasonal Isolated 0.40 0.01169 127 WET139 Seasonal Isolated 0.26 0.01089 118 WET140 Seasonal Isolated 0.13 0.00000 0 WET141 Seasonal Isolated 0.06 0.00000 0 WET142 Semipermanent Isolated 1.94 0.04296 467 WET143 Seasonal Isolated 0.17 0.00527 57 WET144 Seasonal Isolated 0.34 0.00000 0 WET145 Seasonal Isolated 0.07 0.00000 0 Acres of Length of Total Feature USACE Dredged/Fill Required Type Recorded ID Jurisdiction* Placement Crossing Size (acres) (feet) WET146 Semipermanent Isolated 0.12 0.00000 0 WET147 Seasonal Isolated 0.12 0.00000 0 WET148 Seasonal Isolated 0.05 0.00000 0 WET149 Semipermanent Isolated 1.64 0.00000 0 WET150 Semipermanent Isolated 1.62 0.01374 149 WET151 Semipermanent Isolated 3.60 0.04821 525 WET152 Semipermanent Isolated 0.93 0.01704 187 WET153 Seasonal Isolated 0.26 0.00228 24 WET154 Permanent Isolated 5.21 0.04932 537 WET155 Seasonal Isolated 0.20 0.00857 93 WET156 Semipermanent Isolated 1.00 0.00854 92 Total 11.03 0.89 * The USACE has the final authority on the jurisdictional status of a waterbody. USACE = U.S. Army Corps of Engineers

Table 2. Waterbodies and Streams within the Survey Area

Length Total Acres of of Feature USACE Recorded Description Dredged/Fill Required ID Juridisction* Size Placement Crossing (acres) (feet) STR1 Intermittent Likely jurisdictional 0.05 0.01 15 STR3 Intermittent Likely jurisdictional 0.03 0.01 5 STR4 Perennial Likely jurisdictional 0.05 0.02 15 STR12 Intermittent Likely jurisdictional 0.01 0.03 14 STR13 Ephemeral Likely jurisdictional 0.06 0.00 21 STR15 Ephemeral Isolated 0.02 0.00 5 STR17 Intermittent Likely jurisdictional 0.00 0.00 0 STR19 Ephemeral Isolated 0.05 0.00 32 WB1 Stock Pond Isolated 0.10 0.00 0 WB2 Stock Pond Isolated 0.13 0.00 0 Total 0.538 0.13 * The USACE has the final authority on the jurisdictional status of a waterbody. USACE = U.S. Army Corps of Engineers

Corps of Engineers’ Addendum to BIA Sacagawea Pipeline Environmental Assessment