RE: Supplemental Information for the Donlin Gold Natural Gas Pipeline State Pipeline Right-of-Way Lease Application (ADL )

Transcription

1 December, Mr. Jason Walsh State Pipeline Coordinator s Office Penland Parkway Anchorage, AK 0 RE: Supplemental Information for the Donlin Gold Natural Gas Pipeline State Pipeline Right-of-Way Lease Application (ADL 0) Dear Mr. Walsh: Donlin Gold submitted its application for a state pipeline right-of-way lease under AS. in. Since our submittal we have made several modifications to the Donlin Gold Natural Gas Pipeline, Plan of Development (PoD). The purpose of this letter is to make you aware and provide information regarding three such modifications to the PoD to assist you in continuing to process our application. The current Plan of Development (PoD Revision ) that we provided to you previously would be revised following completion of the federal issuance of the Environmental Impact Statement EIS Records of Decision. In the meantime, Donlin Gold s intent is to work with your office to ensure that you have the information you need at this point in your adjudication process to proceed with our ROW lease application. The following three proposed modifications to the Donlin Gold PoD for the Proposed Natural Gas Pipeline Project are addressed:. Electric Power Transmission Line from Beluga to Compressor Station no longer required. Modification of the Compressor Station to include electric power generation. Rerouting the proposed pipeline to include the North Route Alignment of approimately. miles (. km) from MP. to MP. Although there are or may be additional modifications or refinements in length of specific construction sections within Spreads and, camp movement sequence, construction seasons, and other changes, these more detailed items will be addressed in the Pipeline Construction Eecution Plan and in the PoD Revision when completed. The information provided in this letter is based on current information that is being reevaluated and refined. All locations remain approimate as actual requirements and locations will be more accurately determined as the project progresses to final design. If any additional information is needed, please do not hesitate to contact me. Sincerely, Dan Graham Permitting and Environmental Manager CC: Cathe Heroy, SPCO Donlin Gold, Business Park Blvd., Suite G-, Anchorage, AK 0 Tel (0) -00 Fa (0) -0

2 Proposed Modifications to the Donlin Gold PoD for Proposed Natural Gas Pipeline Project.0 Electric Power Transmission Line from Beluga to Compressor Station no Longer Required Donlin Gold proposed in its PoD Revision, Section..: Electric Transmission Line, to construct a medium voltage (MV) aboveground transmission line between the Beluga Power Plant substation and the Compressor Station at MP 0. to meet the operational needs of the Metering Station and Compressor Station. The distance of the proposed electric transmission line under that initial proposal was. miles ( km). Following additional review and evaluation of the proposed construction, use of the transmission line, and the alternative to utilize the compressor station facility after installation of additional equipment to generate power to both operate the compressor station as well as the metering station, Donlin now proposes to eliminate the proposed overhead transmission line and instead generate power at the compressor station. Donlin Gold proposes to run a short-buried transmission line approimately 0. miles (0. km) from the compressor station to the metering station. The buried line would be in a separate rightof-way (ROW) adjacent to or co-located with the pipeline ROW, in compliance with applicable regulatory requirements. Refer to Attachment : Electric Transmission line and Fiber Optic Cable, Figure - from PoD Rev.. This figure depicts the location of the electric transmission line that would no longer be required..0 Modification of the Compressor Station to include Electric Power Generation Donlin Gold proposed a Compressor Station (described in the PoD Rev., Section..), to supply electric power to the compressor station by constructing an. mile ( km) overhead transmission line from the Beluga Power Plant substation to the Compressor Station. Following additional review and evaluation of the proposed construction, use of the transmission line, and the alternative to utilize the compressor station facility after installation of additional equipment to generate power to both operate the compressor station as well as the metering station, Donlin Gold now proposes to instead generate electric power at the compressor station and run a buried electric transmission line the approimately 0. miles (0. km) to the metering station. The estimate of acreage identified in Table -, Calculation of Estimated ROW Acreage (PoD Rev., page -) for the transmission line would be reduced to reflect only the 0. miles (0. km) for the buried electric transmission line from the compressor station at MP 0. to the metering station at MP 0. The compressor station will have two main components: natural gas compression machinery with aftercoolers to reduce gas temperature following the compression process; and electrical generation machinery. Two microturbines would be used for electrical power generation (a 00% unit with a 00% backup) for the compressor station and metering station operations, station yard lighting, emergency lighting, and provide for emergency uninterrupted power. Please refer to Attachment for the location of the compressor station and metering station which would remain located at MP 0. and MP 0 as depicted in Figure -. Donlin Gold December

3 .0 Rerouting the Proposed Pipeline to include the North Route Alignment from Approimately Happy River to Threemile Creek Valley The North Route departs the PoD Rev. proposed alignment at approimately MP. and rejoins at approimately MP. The length of the North Route is approimately. miles (. km) and traverses only state lands although the North Route does cross the Happy River Remote Recreational Cabin Staking Area and proposed Happy River Remote Recreational Cabin Staking Area. The North Route also crosses an area of state mining claims held by Geoinformatics Alaska Eploration, Inc. and, at one location, the Iditarod Trail Public Access Easement and the Iditarod National Historical Trail easement (INHT), see Attachment. From approimately MP. east of the Happy River, the North Route veers northwesterly and passes beneath an unnamed tributary of the Happy River at approimately MP.0 (flowing from the west side of McDoel Peak) utilizing a,-foot ( m) horizontal directional drill (HDD). The North Route continues northwesterly, running roughly parallel to Happy River on the river s northeast side. Near approimately MP.0 the pipeline would pass beneath another unnamed tributary to the Happy River (flowing from the southeast side of Distin Peak) as a,0-foot ( m) HDD. The North Route then continues northwesterly along the northeast side of Happy River, crossing Glacier Creek and Moose Creek then continues northwesterly again to rejoin the PoD Rev. proposed alignment at approimately MP.0 The North Route is unique in that it maintains close proimity to the Happy River (approimately miles ( km) and holds to elevations within 0 ft ( m) of the Happy River canyon rim. The route typically traverses relic alluvial terraces associated with the Happy River. Consequently, the North Route includes very little significant elevation gain or loss. The route does cross numerous minor drainages and three significant streams that would involve open-cut pipeline installation. The two tributary drainages that include steep-walled canyons with depths of 0 and 0 ft ( and m) would both require an HDD crossing method and special effort to develop shoofly roads in and out of the canyons. In general, the soils that would be encountered along this route are likely very favorable for pipeline ROW development and trenching. The near absence of permafrost and poor soils precludes concerns with thaw consolidation and associated requirements for strain-based design. The North Route appears to minimize or avoid wetlands and thaw-unstable permafrost. In shifting to the North Route, Donlin would eliminate any crossing of the Happy River, and reduce impacts to wetlands and permafrost conditions, and would also have the potential for summer season construction. Wildlife impacts would vary but would not be significantly different from the PoD Rev. proposed alignment, although future survey studies would be necessary to confirm. The North Route crosses streams, of which are listed as anadromous in the Anadromous Water Catalog (AWC). Cut-and-fill stream crossing construction methods over fish spawning habitat would be used. The anadromous streams crossed are Moose Creek and Threemile Creek, both of which have documented sockeye salmon spawning habitat and would be crossed by cut-and-fill methods. The North Route is the only alternative of those considered in this region that eliminates crossings of all documented Chinook spawning habitats. However, thirteen of the streams crossed by the North Route have not been sampled and some may provide for resident and anadromous fish. Spawning habitat appears unlikely in any of the thirteen. None of the shoofly access routes for the North Route would cross documented anadromous fish habitat. Although the North Route has not been surveyed to identify potential additional cultural resource sites, of the cultural sites currently noted in the region by the Alaska Heritage Resources Survey (AHRS), all the sites are farther away from the North Route than from the PoD Rev. proposed alignment. Aside from the INHT crossing, no site is within a half-mile of the North Route, and five are more than a mile away. Donlin Gold December

4 Attachment : North Route Footprint and Land Details also identifies the approimate locations of the shoofly access routes, temporary construction camps, material sites, airstrips, water etraction sites, pipe storage yards, and HDD Crossing locations. It also identifies that segment of the PoD Rev. proposed alignment that would be eliminated by the proposed reroute to the North Route segment. Table -, Calculation of Estimated ROW Acreage (PoD Rev., page -) would not change significantly for the estimated acreage for the pipeline, because of using the North Route. The following modified PoD Rev. tables show the changes that are the result of utilizing the North Route alignment for that segment of the proposed gas pipeline from approimately Happy River (MP.) to Threemile Creek Valley (MP ). Location and Description of Mainline Block Valves- The mainline valve location at approimately MP 0. shown in the PoD Rev. would be relocated to the North Route at approimately MP 00.. Refer to the PoD Rev. Section.0 Location and Description of Mainline Block Valves, pages -, and Table - below for the repositioning of MLV-0 to the North Route. PoD Rev., Table -: Mainline Valve Location Summary No. TAG Approimate Milepost (MP) MLV-0 MP 0.0 MLV-0 MP 0. A MLV-0A MP. MLV-0 MP. MLV-0 MP. MLV-0 MP. MLV-0 MP. (New-North Route) MLV-0 MP 0.0 MLV-0 MP 00. MLV-0 MP. MLV-0 MP.0 0 MLV-0 MP. MLV- MP. MLV- MP.0 MLV- MP. MLV- MP. MLV MP. MLV- MP. MLV- MP. MLV- MP 0. MLV- MP. Donlin Gold December

5 Iditarod Trail- The Iditarod National Historic Trail (INHT) corridor includes the original Iditarod Trail and Iditarod Race Trail (IRT) are treated as one linear cultural site. The INHT crosses the North Route only once, just east of the INHT s Happy River crossing. The INHT and North Route run along opposite sides of the Happy River, and the average distance between the pipeline and INHT is approimately.0 mile (. km). Less than 0.-mile (0. km) of the pipeline would fall within the 00-foot ( m) easement for the INHT. Visibility of the pipeline from the INHT is epected to be relatively low. The North Route passes through heavily timbered areas and would be typically located on low benches above the Happy River canyon rim, and therefore likely to be below the horizon from much of the INHT. Refer to the current PoD Rev. Section.. Iditarod Trail, pages - through -. The overall number pipeline crossings of the INHT corridor is substantially reduced as shown in the table below by use of the North Route. The crossings no longer required and the one crossing of the INHT are identified in PoD Rev., Table - below. PoD Rev., Table -: Pipeline Crossings of INHT, State of Alaska Public Access Easements for the Iditarod Trail and non-section line RS Rights-of-Way MP From MP To Description Case ID Map ID Iditarod National Historic Trail MAP State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass ADL 0 MAP-0.. Iditarod National Historic Trail MAP-0.. State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass ADL 0 MAP-0. Susitna-Rainy Pass Trail RST MAP-0. Susitna-Rainy Pass Trail RST MAP-0. Susitna-Rainy Pass Trail RST MAP-0. Susitna-Rainy Pass Trail RST MAP-0. Susitna-Rainy Pass Trail RST MAP-0. Susitna-Rainy Pass Trail RST MAP-0. Susitna-Rainy Pass Trail RST MAP-0.. Iditarod National Historic Trail TBD State Public Access Easement for Iditarod Trail, 00 ft wide State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass Susitna-Rainy Pass Trail Iditarod National Historic Trail State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass Susitna-Rainy Pass Trail Iditarod National Historic Trail State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass Iditarod National Historic Trail ADL 0 ADL 0 RST ADL 0 RST ADL 0 TBD MAP-0 MAP-0 MAP-0 MAP-0 MAP-0 MAP-0 MAP-0 MAP-0 Donlin Gold December

6 0. 0. State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass ADL 0 MAP Susitna-Rainy Pass Trail RST MAP Iditarod National Historic Trail MAP State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass ADL 0 MAP-0.. Iditarod National Historic Trail MAP-0.. State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass ADL 0 MAP-0.. Susitna-Rainy Pass Trail RST MAP-0.. Susitna-Rainy Pass Trail RST MAP-0.. Susitna-Rainy Pass Trail RST MAP-0.. Iditarod National Historic Trail MAP-0.. State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass ADL 0 MAP-0.0. Iditarod National Historic Trail MAP-0.0. State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass ADL 0 MAP-0.0. Iditarod National Historic Trail MAP-0.0. State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass ADL 0 MAP Susitna-Rainy Pass Trail RST MAP State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass ADL 0 MAP Iditarod National Historic Trail MAP State Public Access Easement for Iditarod Trail, 00 ft wide, Susitna to Rainy Pass ADL 0 MAP Susitna-Rainy Pass Trail RST MAP Iditarod National Historic Trail MAP State Public Access Easement for Iditarod Trail, 00 ft wide, Rainy Pass to Rohn ADL 0 MAP-0.. Iditarod National Historic Trail over State-Owned navigable water MAP-.. Iditarod National Historic Trail MAP-.. Rainy Pass-Big River Trail RST MAP-.. State Public Access Easement for Iditarod Trail, 00 ft wide, Rohn to Takotna ADL 0 MAP- Donlin Gold December

7 Mainline Camps and Camp Locations- One additional mainline camp, Glacier Creek Camp, would be constructed and utilized. The camp would be located at approimately MP.. Refer to the PoD Rev. Section.. Mainline Camps and Camp Locations, page - through - and the revised table shown below that identifies the additional camp requirement. PoD Rev., Table -: Mainline Pipeline Campsite Locations Spread Campsite Approimate Location Type of Camp/ Site Area Season of Use Summer Winter Donlin Gold Camp Mine Site TBD Kuskokwim West Camp MP 00 Person Camp/. acres (. ha) Kuskokwim East Camp MP. 00 Person Camp/. acres (. ha) Big River Camp MP 00 Person Camp/. acres ( ha) Jones Camp MP 00 Person Camp/ 0. acres (. ha) Bear Paw Camp MP. 00 Person Camp/. acres (0. ha) Threemile Camp MP. 00 Person Camp/. acres (. ha) Glacier Creek Camp MP. 00 Person Camp/ Acres TBD Happy River Camp MP 00 Person Camp/. acres (. ha) Shell Camp MP 00 Person Camp/ acres ( ha) Deep Creek Camp MP 00 Person Camp/. acres (. ha) Beluga Camp Beluga TBD Donlin Gold December

8 HDD Camps and Camp Locations and Work Pads- In utilizing the North Route, the HDD crossing described in the PoD Rev. for the Happy River is no longer required. However, the North Route would require using HDD to cross two unnamed tributaries of the Happy River. Refer to the PoD Rev. Section.. HDD Camps and Camp Locations and Work Pads, pages - and - and the table below which shows the HDD site no longer required and the HDD sites required by the North Route. PoD Rev., Table -: HDD Camps and Campsite Locations Spread Campsite/ Workspace Area Approimate Milepost Location (MP) North Fork George HDD Site North Fork George (HDD Entry). acres (0. ha) MP. North Fork George (HDD Eit). acres (0. ha) MP. George River HDD Site George River (HDD Entry). acres (0. ha) MP. George River (HDD Eit). acres (0. ha) MP. East Fork George HDD Site East Fork George (HDD Entry). acres (0. ha) MP. East Fork George (HDD Eit). acres (0. ha) MP. Kuskokwim River HDD Site Season of Use Kuskokwim River (HDD Entry). acres (0. ha) MP. Kuskokwim River (HDD Eit). acres (0. ha) MP. Kusko West Landing MP. Kusko East Landing MP. Unnamed Tributary # of Happy River HDD Site (McDoel) Unnamed Tributary # HDD Entry Unnamed Tributary # HDD Eit Unnamed Tributary # of Happy River HDD Site (Distin) Unnamed Tributary # HDD Entry Unnamed Tributary # HDD Eit Geohazard Avoidance- Pipe Pass #, #, # MP. MP. MP. MP.0 Pipe Pass # HDD Entry (. mi) MP. X Pipe Pass # HDD Eit MP. X Pipe Pass # HDD Entry (. mi) MP. X Pipe Pass # HDD Eit MP. X Pipe Pass # HDD Entry (0.0 mi) MP. X Pipe Pass # HDD Eit MP. X Happy River HDD Site Happy River (HDD Entry). acres (0. ha) MP. Summe X r Winter All Season Donlin Gold December

9 Happy River (HDD Eit). acres (0. ha) Skwentna River HDD Site MP. Skwentna River (HDD Entry). acres (0. ha) MP. Skwentna River (HDD Eit). acres (0. ha) MP 0. Beluga Landing MP -0.0 HDD used for geohazard area avoidance in area located approimately between MP to. Donlin Gold December

10 Airstrips- One new airstrip would be constructed and used at approimately MP. in support of construction activities for the North Route. Refer to the PoD Rev. Section.. Airstrips, pages - through -, the table below supplements that information with the additional airstrip needed for the North Route construction. PoD Rev., Table -: Airstrip Locations and Construction Spread Name Approimate Milepost Location Length (ft/m) Construction/Area Summer Season of Use Winter All Season Beluga Airstrip Beluga,000 ft (, m) Deep Creek Airstrip MP.,00 ft (,0 m) Shell Airstrip MP.0,000 ft (, m) Happy River Airstrip MP.,000 ft (, m) Glacier Creek Airstrip (New- North Route) MP.,000 ft (, m) Threemile Airstrip MP.,00 ft (,0) Bear Paw Airstrip MP.,000 ft (, m) Jones Airstrip MP.,000 ft (, m) Farewell Airstrip MP.,000 ft (, m) Big River Airstrip MP.,000 ft (, m) Kuskokwim East Airstrip Kuskokwim West Airstrip Donlin Gold Airstrip MP. MP. Donlin Gold Camp,000 ft (, m),000 ft (, m),000 ft (, m) Eisting-No work New- Grade, cut/ fill. acres (. ha) New- Grade, cut/ fill 0. acres ( ha) New- Grade, cut/ fill. acres (. ha) New- grade cut/fill. acres (. ha) New- Grade, cut/ fill. acres (. ha) New- Grade, cut/ fill. acres (0. ha) New- Grade only, flood plain. acres (. ha) Eisting- Grade only, surface course. acres (. ha) New- Grade, cut/fill. acres (. ha) New- Grade only. acres ( ha) New- Grade only acres (. ha) Eisting- No work Use of the eisting airstrip in Skwentna was evaluated and determined to not meet Donlin Gold s needs. Donlin Gold December

11 Roads- Access to water etraction sites, material sites and shoofly roads are needed for the North Route. Refer to the PoD Rev. Section.. Roads, pages - through -, and the revised table below which includes the addition of roads needed for the North Route. PoD Rev., Table -: Temporary Site Access Roads Season of Use Name Milepost (MP) Length (m) Length (km) Type Description Summer Winter All Season Public Road Easement Eisting access from Beluga airstrip to MP 0 Public Road Easement Eisting Pretty Creek Road AWES-000 MP Water Etraction Site Access AWES-00 MP Water Etraction Site Access AWES-000 MP 0.. Water Etraction Site Access AWES-00 MP Water Etraction Site Access AWES-0 MP.. Water Etraction Site Access AWES-00 MP 0.. Water Etraction Site Access AWES-0 MP Water Etraction Site Access AWES-00 MP Water Etraction Site Access AWES-00 MP Water Etraction Site Access AWES-0 MP Water Etraction Site Access AWES-0 MP Water Etraction Site Access AMS- MP 0..0 Material Site Access AWES-0 MP Water Etraction Site Access AWES- MP Water Etraction Site Access AWES-000 MP Water Etraction Site Access AWES-00 MP AWES-0 MP AWES-00 MP AWES-00 MP AWES-00 MP AWES-00 MP AWES-00 MP Water Etraction Site Access Water Etraction Site Access Water Etraction Site Access Water Etraction Site Access Water Etraction Site Access Water Etraction Site Access Water Etraction Site Access AWES-0 MP Water Etraction Site Access AMS-C MP Material Site Access AWES-00 MP Water Etraction Site Access AWES-0 MP Water Etraction Site Access AWES-00 MP Water Etraction Site Access AWES-0 MP Water Etraction Site Access Donlin Gold 0 December

12 AAS-Farewell MP..0 Airstrip Access Name Milepost (MP) Length (m) Length (km) Type Description Season of Use AWES-0 MP Water Etraction Site Access AWES-0 MP Water Etraction Site Access AWES-0 MP Water Etraction Site Access AWES-0 MP Water Etraction Site Access AWES-00 MP Water Etraction Site Access AWES-00 MP Water Etraction Site Access AWES-00 MP Water Etraction Site Access AMS- MP Material Site Access AMS- MP Material Site Access AWES-00 MP Water Etraction Site Access AWES-00 MP.. Water Etraction Site Access AWES-00 MP Water Etraction Site Access AMS-0 MP Material Site Access AWP-Kusko NE MP Work Pad AWES-00 MP Water Etraction Site Access AWES-00 MP Water Etraction Site Access Donlin Gold December

13 Refer to the PoD Rev. Section.. Roads, pages - through -. Shoofly access route additions and deletions for the north route are included in the table below. PoD Rev., Table -: Shoofly Access Routes Season of Use Name Approimate Milepost (MP) Length (m) Length (km) Summe r Winter All Season SHOO-000 MP. 0.. SHOO-000 MP. 0.. SHOO-00 MP SHOO-000 MP SHOO-000 MP..0. SHOO-000 MP SHOO-000 MP SHOO-000 MP SHOO-000 MP 0.. SHOO-000 MP SHOO-000 MP SHOO-00 MP SHOO-0 MP SHOO- MP..0. SHOO-00 MP... SHOO-0 MP SHOO-00 MP.. SHOO-00 MP SHOO-00 MP SHOO-00 MP SHOO-00 MP SHOO-00 SHOO-00 SHOO-00 SHOO-00 SHOO-00 SHOO-00 MP. 0.. MP MP MP MP MP Donlin Gold December

14 Season of Use Name Approimate Milepost (MP) Length (m) Length (km) Summer Winter All season SHOO-00 SHOO-0 MP MP SHOO-00 MP SHOO-0 MP. 0.. SHOO-0 MP SHOO-00 MP SHOO-0 MP SHOO-0 MP SHOO-0 MP. 0.. SHOO-0 MP... SHOO-0 MP SHOO-0 MP SHOO-000 MP. 0.. SHOO-00 MP SHOO-0 MP SHOO-00 MP SHOO-00 MP... SHOO-00 MP SHOO-00 MP...0 SHOO-00 MP SHOO-00 MP..0. SHOO-00 MP SHOO-000 MP SHOO-00 MP SHOO-0 MP SHOO-00 MP..0. SHOO-00 MP...0 SHOO-00 MP.. SHOO-00 MP... SHOO-00 MP SHOO-00 MP....0 SHOO-00 MP... SHOO-000 MP... SHOO-00 MP... SHOO-0 MP...0 Donlin Gold December

15 SHOO-00 MP... SHOO-00 MP. 0.. SHOO-00 MP SHOO-00 MP SHOO-00 MP SHOO-00 MP SHOO-00 MP SHOO-000 MP SHOO-00 MP. 0.. SHOO-0 MP. 0.. SHOO-00 MP.. SHOO-00 MP... SHOO-00 MP... SHOO-00 MP 0.. SHOO-00 MP SHOO-00 MP..0 SHOO-00 MP SHOO-000 MP... SHOO-00 MP... SHOO-0 MP SHOO-00 MP SHOO-00 MP.. 0. Donlin Gold December

16 Potential Material Sites- New material sites are proposed along the North Route and some of those proposed in the PoD Rev. identified below in the table would no longer be required. Refer to the PoD Rev. Section.. Material Sites, pages - through -0, and the table below for material site locations, including additions and deletions. PoD Rev., Table -: Potential Material Sites Material Site Name Nearest Milepost (MP) Area in Acres (ha) Material Type Estimated Available Volume (yd ) Estimated Epected Usage (yd ) Summer Season of Use Winter All Season MS-00 MP 0.. acres (. ha) MS-0 MP.. acres (. ha) MS-0 MP 0.. acres (. ha) MS-0 MP.. acres (. ha) MS-0 MP.. acres (. ha) MS-0 MP.. acres (. ha) MS-0 MP.. acres (. ha) MS-0 MP.. acres (. ha) MS-0 MP. acres (. ha) MS-0 MP. acres (. ha) MS-0 MP 0.. acres (. ha) MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- (No longer required) MS- (No longer required) MS-A (No longer required) MS-A (New-North Route) MS-A (New-North Route) MP MP 0. MP 0. MP. MP.. acres (. ha). acres (. ha). acres (. ha). acres (. ha). acres (. ha) 0,000 0,000,000,000 Bedrock,000,000 Bedrock,000,000 Bedrock,000,000 0,000,000,000,000,000,000 0,000 0,000 00,000 0,000,000,000,000,000,000,000 00,000 00,000,000,000,000,000,000,000,000 0,000 0,000,000 Donlin Gold December

17 MS-A (New-North Route) MS-B (New-North Route) MP 0. MP.. acres (. ha). acres (. ha) MS-C MP.. acres ( ha) MS-A MP.. acres (. ha) MS-B MP.. acres (. ha) MS-C MP.. acres (. ha) MS-A MP.. acres (0. ha) MS-B MP.. acres (. ha) MS- MP. acres (. ha) MS- MP 0.. acres (0. ha) MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- MP. acres (. ha) MS- MP. acres (. ha) MS-A MP.. acres (. ha) MS- MP 0.. acres ( ha) MS-A MP.. acres (. ha) MS- MP.. acres ( ha) MS-0 MP. acres (. ha) MS- MP 0.. acres ( ha) MS- MP.. acres (. ha) MS- MP. acres (. ha) MS- MP. acres ( ha) 0,000 0,000 0,000 0,000 Course Colluvial Coarse Colluvial Outwash Bedrock & Glacial/,000,000,000 0,000,000 0,000,000 0,000,000 0,000,000,000 00,000 0,000 00,000 0,000 00,000 00,000 0,000,000,000 0,000,000,000,000,000,000 0,000,000 0,000 00,000 00,000 0,000 0,000 0,000,000 0,000,000,000,000 0,000 0,000,000 00,000 00,000 0,000,000 0,000 Donlin Gold December

18 MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- MP 0.. acres (. ha) MS- MP.. acres ( ha) MS-0 MP. acres (. ha) MS- MP.. acres (. ha) MS- MP.. acres ( ha) MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- MP. acres (. ha) MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- MP.. acres ( ha) MS- MP.. acres (. ha) MS-0 MP.. acres (0. ha) MS- MP. acres (. ha) MS- MP.. acres (. ha) MS- MP. acres (. ha) MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- MP.. acres (. ha) MS- MP. acres (. ha) MS-0 MP. acres (. ha) MS-0A MP. acres ( ha) MS- MP.. acres (. ha) MS-A MP. acres (. ha) 00,000 0,000 00,000 00,000 0,000 0,000 0,000 0,000 0,000,000 00,000 0,000 Bedrock,000,000 0,000 Bedrock,000,000 Bedrock,000,000 0,000 Bedrock 00,000,000 Bedrock,000,000 Bedrock 0,000 0,000 Bedrock,000 00,000 Bedrock 0,000 0,000 Bedrock 0,000 0,000 Bedrock &,000,000,000 Bedrock 0,000,000 Bedrock 00,000 00,000 Bedrock 0,000,000 Bedrock 0,000,000 Bedrock 0,000,000 Bedrock 0,000,000 Bedrock 0,000 0,000 Bedrock 0,000 0,000 Bedrock 0,000 0,000 Bedrock 0,000 0,000 Bedrock 0,000 0,000 Donlin Gold December

19 MS- MP.. acres (. ha) MS- MP. 0 acres ( ha) Bedrock 00,000 00,000 Bedrock 0,000 00,000 Donlin Gold December

20 Pipe Storage Yards- New potential pipe storage yards are proposed along the North Route and five proposed in the PoD Rev. identified below in the table that would no longer be required. Refer to the PoD Rev. Section.. Pipe Storage Yards, pages - through - (Table -). PoD Rev., Table -: Pipe Storage Yards Name Approimate Milepost (MP) Beluga Yard Area (acres/ hectares) Summer Season of Use Winter All Season Planned Pipe Source Beluga PSY-0 MP.. acres (0. ha) Beluga PSY-0 MP.. acres (0. ha) Beluga PSY-0 MP.. acres (0. ha) Beluga PSY-0 MP.. acres (0. ha) Beluga PSY-0 MP.. acres (0. ha) Beluga PSY-0 MP.. acres (0. ha) Beluga PSY-0 MP.. acres (0. ha) Beluga PSY-0 MP.. acres (0. ha) Road system than via ice road PSY-0 MP.. acres (0. ha) Road system than via ice road PSY-0 MP 0.. acres (0. ha) Road system than via ice road PSY- MP.. acres (0. ha) Road system than via ice road PSY- MP.. acres (0. ha) Road system than via ice road PSY- MP.. acres (0. ha) Road system than via ice road PSY- MP.. acres (0. ha) Road system than via ice road PSY- MP 0.. acres (0. ha) Road system than via ice road PSY- MP.. acres (0. ha) Road system than via ice road PSY- MP.. acres (0. ha) Road system than via ice road PSY- MP. acres (0. ha) PSY- MP 0.. acres (0. ha) PSY- MP.. acres (0. ha) PSY- MP 0.. acres (0. ha) PSY- MP 0.. acres (0. ha) Road system than via ice road Road system than via ice road Road system than via ice road Road system than via ice road Road system than via ice road PSY- (New-North Route) MP.0. acres (0. ha) X Road system than via ice road PSY-A (New-North Route) MP.. acres (0. ha) X Road system than via ice road PSY- (New-North Route) MP.. acres (0. ha) X Road system than via ice road PSY- (New-North Route) MP.. acres (0. ha) X Road system than via ice road PSY-A (New-North Route) MP 0.. acres (0. ha) X Road system than via ice road PSY- (New-North Route) MP 0.. acres (0. ha) X Road system than via ice road Donlin Gold December

21 PSY- (New-North Route) MP 0.0. acres (0. ha) X Road system than via ice road PSY-A (New-North Route) MP 0.. acres (0. ha) X Road system than via ice road PSY- (New-North Route) MP.. acres (0. ha) X Road system than via ice road PSY- (New-North Route) MP.. acres (0. ha) X Road system than via ice road PSY- MP.. acres (0. ha) Road system than via ice road PSY- MP.. acres (0. ha) Road system than via ice road PSY- MP.. acres (0. ha) Road system than via ice road PSY- MP.. acres (0. ha) Road system than via ice road PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY-0 MP. acres (0. ha) Kusko East PSY- MP. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY-0 MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko East PSY- MP.. acres (0. ha) Kusko West PSY- MP.. acres (0. ha) Kusko West PSY- MP.. acres (0. ha) Donlin Gold December Kusko West PSY- MP.. acres (0. ha) Kusko West PSY- MP.. acres (0. ha) Donlin Mine PSY- MP.. acres (0. ha) Donlin Mine PSY-0 MP.. acres (0. ha) Donlin Mine PSY- MP.. acres (0. ha) Donlin Mine PSY- MP.. acres (0. ha) Donlin Mine PSY- MP.. acres (0. ha) Donlin Mine PSY- MP.. acres (0. ha) Donlin Mine PSY- MP.. acres (0. ha) Donlin Mine PSY- MP 0.. acres (0. ha) Donlin Mine PSY- MP 0.. acres (0. ha) Donlin Mine Notes: This yard is not laid out; it is assumed there is adequate room at Beluga. Start pipe haul from Beluga. Actual winter access route options (Oilwell Road Route or Willow Landing Route) are still being evaluated and are discussed in Section...

22 Potential Water Etraction Sites- New potential water etraction sites are proposed along the North Route and those proposed in the PoD Rev. identified below in the table would no longer be required. Refer to the PoD Rev. Section.. Water Use and Potential Water Etraction Sites, pages - through - and the table below. PoD Rev., Table -: Potential Water Etraction Sites Water Etraction Site Name Nearest Milepost (MP) Summer Season of Use Winter All Season Waterbody Type Years of Use Rate (gpm) Etraction Annual Volume (gal) WES-000 MP 0 River 00,0,000 WES-00 MP River 00,0,000 WES-000 MP 0 Pond 00 00,000 WES-00 MP Pond 00 00,000 WES-000 MP Tributary 00 0,000 WES-000 MP Tributary 00 0,000 WES-000 MP Creek 00,0,000 WES-000 MP Tributary 00,0,000 WES-000 MP Tributary 00,0,000 WES-00 MP Creek 00 00,000 WES-000 MP Creek,0,000 WES-00 MP Creek,00,000 WES-00 MP Creek 00,0,000 WES-000 MP 0 Tributary 00,0,000 WES-00 MP Creek 00,00,000 WES-0 MP Creek 00,0,000 WES-0 MP Creek 00,0,000 WES-00 MP Tributary 00,0,000 WES-00 MP Creek 00,0,000 WES-0 MP Creek 00,0,000 WES- MP Creek 00,0,000 WES-00 MP Creek 00,0,000 WES-00 MP Creek,0,000 WES- MP Pond 00 00,000 WES-00 MP Pond 00,0,000 WES-00 MP 0 River 00,,000 WES-00 MP Creek 00 00,000 WES-00 MP Creek 00,0,000 WES-0 MP River 00,0,000 WES-0 MP Pond 00,0,000 WES-00 MP Stream 00,0,000 WES- MP Stream 00,0,000 WES-0 MP Stream 00,0,000 WES-0 MP Stream 00,0,000 WES-0 MP Stream 00,0,000 WES-0 MP Stream 00 00,000 WES-0 MP Stream,0,000 WES-0 MP Pond 00,0,000 WES-0 MP Stream 00,0,000 Donlin Gold December

23 WES-0 MP Stream 00,0,000 WES-0 MP Creek 00,0,000 WES-0 MP Creek 00,0,000 WES-000 MP Pond 00,0,000 WES-00 MP River 00,,000 WES-0 (No longer required) MP WES-00 (No longer required) MP 0 WES-00 (No longer required) MP WES-00 (No longer required) MP WES-00 (No longer required) MP 0 WES-00 (No longer required) MP 0 WES-00 (No longer required) MP 0 WES-00 (No longer required) MP 0 WES-0 (New- North Route) MP. X WES-0 (New- North Route) MP. X WES-00 (New- North Route) MP. X WES-00 (New- North Route) MP. X WES-00 (New- North Route) MP 0. X WES-00 (New- North Route) MP. X WES-00 (New- North Route) MP. X WES-00 (New- North Route) MP. X WES-00 (New- North Route) MP 00. X WES-000 (New- North Route) MP 0. X Lake 00,000,000 Lake 00,000,000 Creek 00,00,000 Creek,0,000 Creek 00,0,000 Creek 00,000,000 Creek 00,0,000 River 00,,000 Creek TBD TBD TBD Creek TBD TBD TBD Creek TBD TBD TBD Creek TBD TBD TBD Creek TBD TBD TBD Creek TBD TBD TBD Creek TBD TBD TBD Creek TBD TBD TBD Creek TBD TBD TBD Creek TBD TBD TBD Donlin Gold December

24 WES-00 (New- North Route) MP 0. X Creek TBD TBD TBD WES-0 MP. Stream 00,,000 WES-0 MP. Creek 00 00,000 WES-0 MP Tributary 00 00,000 WES-0 MP Tributary 00 00,000 WES-00 MP Tributary 00 00,000 WES-0 MP Tributary 00 00,000 WES-0 MP Tributary 00 00,000 WES-00 MP Creek 00 00,000 WES-0 MP Tributary 00 00,000 WES-0 MP Tributary 00 00,000 WES-00 MP River 00,000,000 WES-00 MP 0 Pond 00 0,000 WES-0 MP River 00 0,000 WES-0 MP Tributary 00 00,000 WES-0 MP Tributary 00 0,000 WES-0 MP Spring 00 0,000 WES-00 MP River 00 0,000 WES-0 MP River 00 0,000 WES-00 MP 0 Tributary 00 0,000 WES-00 MP Tributary 00,,000 WES-000 MP River 00,0,000 WES-00 MP Tributary 00,00,000 WES-00 MP 0 Creek 00,0,000 WES-0 MP Creek 00,00,000 WES-00 MP Creek 00,00,000 WES-00 MP Creek 00,00,000 WES-0 MP Pond 00,00,000 WES-00 MP River 00,,000 WES-00 MP Creek 00 00,000 WES-00 MP Creek 00 00,000 WES-0 MP Creek 00,00,000 WES-00 MP Creek 00 00,000 WES-00 MP Creek 00 00,000 WES-0 MP 0 Creek 00,00,000 WES-000 MP River 00,,000 WES-00 MP Creek 00,,000 WES-0 MP Pond 00,0,000 WES-0 MP Pond 00,0,000 WES-0 MP Pond 00,0,000 WES-00 MP River 00,,000 WES-00 MP Pond 00,000,000 WES-00 MP Pond 00,000,000 WES-00 MP Pond 00,000,000 WES-00 MP Creek,000 WES-00 MP Creek 00,000 WES-00 MP Creek,000 Donlin Gold December

25 WES-00 MP River 00,,000 WES-0 MP Creek 00,0,000 WES-0 MP Creek 00,0,000 WES-00 MP Creek 00,00,000 WES-00 MP Creek 00 00,000 WES-00 MP Creek 00,00,000 WES-00 MP Creek 00,0,000 WES-00 MP Creek 00,0,000 WES-00 MP Tributary 00 0,000 WES-00 MP Creek 00,000 WES-000 MP Creek 00 0,000 WES-00 MP Creek 00,000 WES-0 MP Creek 00 0,000 WES-0 MP Creek 00,0,000 WES-0 MP Creek 00 00,000 WES-00 MP River 00,,000 WES-0 MP Creek 00 0,000 WES-0 MP Creek 00 00,000 WES-00 MP River 00 0,000 WES-00 MP River 00,,000 Donlin Gold December

26 PoD Rev., Table -: HDD Estimated Water Use HDD Crossing Name Skwentna River Happy River Unnamed Tributary # to Happy River- McDoel Unnamed Tributary # to Happy River- Distin Kuskokwim River East Fork George River George River North Fork George River Length (ft/m), ft 0 m, ft,0 m,. ft. m,0. ft. m,0 ft, m, ft, m, ft 0 m, ft,000 m Estimated Total Water Requirement (gal) 0,000-,000 0,000-00,000 0,000-00,000 0,000-00,000 00,000-,000 00,000-,000,000-0,000,000-0,000 Estimated Total Volume Solids/Cuttings Needing Disposal (cyd) Estimated Total Volume of Drilling Mud for Disposal (gal) - 0,000-0,000 -,000-,000 -,000-,000 -,000-, ,000-0,000 -,000-,000-0,000-0,000 -,000-,000 Note: Estimated volume ranges rely on assumptions regarding drilling methods and ground conditions to be encountered, therefore actual volumes can vary significantly and operations would be planned accordingly. Estimates would be refined during final design. Donlin Gold December

27 Pipeline Construction Fuel Estimate- With the establishment on one additional airstrip in the North Route the estimated fuel required would be modified as shown in the table below. Refer to the PoD Rev. Section.. Fuel, pages - and -. PoD Rev., Table -: Pipeline Construction Fuel Estimate Pipeline Construction Fuel Estimate (Gallons) Airstrips,000,000 Beluga Airstrip 00,000 Deep Creek Airstrip 00,000 Shell Airstrip,000 Happy River Airstrip TBD Glacier Creek Airstrip 00,000 Threemile Airstrip 00,000 Bear Paw Airstrip 00,000 Jones Airstrip 0,000 Farewell Airstrip 00,000 Big River Airstrip 00,000 Kuskokwim East Airstrip 00,000 Kuskokwim West Airstrip 00,000 Donlin Airstrip Total Gallons:,00,000 (plus Glacier Creek Estimate TBD) Donlin Gold December

28 Donlin Gold gas pipeline compressor station buried electric transmission line from MP- to metering station at MP-0 Fiber optic cable in buried mode from MP-0 at metering station tie-in with BPL to compressor station Beluga power plant substation is an option for fiber optic cable point of beginning Beluga River TL- TL- TL- TL- MP- MP- MP- MP- MP- TL- MP- MP- TL- MP- MP-0 MP- TL- MP- # MP-0 Fiber optic cable would continue with pipeline to mine site in buried mode Donlin Gold gas pipeline point of beginning (MP-0) Medium voltage above-ground transmission line is no longer proposed for use to provide electric power to compressor or metering station Potential Beluga construction-phase camp location/storage yard!.!( Landing area/storage yard C O O K I N L E T K Proposed Transmission Milepost (TL-) Proposed Gasline Milepost (MP-) # Compressor Station Proposed Natural Gas Pipeline Alingment Proposed Transmission Line!. Eisting Power Plant Eisting Camp Eisting Storage Yard Attachment SCALE: 0 mi 0. km USGS Tyonek Quad K Seward Meridian, UTM Zone, NAD ELECTRIC TRANSMISSION LINE AND FIBER OPTIC CABLE DONLIN GOLD PROJECT FIGURE: DG: PER0.md, 0//, R

29 MP- MP MP-0 MP-0 MP-0 MP-0 S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W MP MP-0 MP-0 MP-0 0 MP-0 0 MP-0 S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W MP- S0N0W S0N0W S0N0W S0N0W MP-00 MP MP- MP- S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W MP- MP- MP- 0 MP- MP S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W MP- S0N0W S0N0W S0N0W S0N0W 0000 MP- MP- MP- MP- MP- MP- Copyright: National Geographic Society, i-cubed CURRENT PIPELINE ALIGNMENT/FOOTPRINT HDD Entry/Eit Airstrip Water Etraction Site Camp Current Milepost (MP-) Material Site Current Pipeline Alignment Previous Pipeline Alignment Pipe Storage Yard Temporary HDD Workspace Work Pad Shoofly Access Route Site Access Route 0000 DETAILED LAND STATUS () Happy River, Remote Recreational Cabin Staking Area Commercial Guide Camp Permit or Lease or Easement Applicaiton State-Identified RS Public Right-of-Way (Non-section line) Iditarod Trail, Public Access Easement (00' Wide) Iditarod National Historical Trail (INHT), Easement (00' Wide) Geoinformatics Alaska Eploration, Inc. BRI Alaska Corp. State-Owned, Tentatively Approved (TA) or Patented Land e e e Federal Land, Federal e e e Aviation Administration Private Land INHT Easement (ADNR, Pre-) Attachment K NORTH ROUTE FOOTPRINT AND LAND DETAILS DONLIN GOLD PROJECT FIGURE: SCALE: mi km Seward Meridian, UTM Zone, NAD DG: PER0.md, /0/, R0

30 Donlin Gold gas pipeline compressor station buried electric transmission line from MP- to metering station at MP-0 Fiber optic cable in buried mode from MP-0 at metering station tie-in with BPL to compressor station Beluga power plant substation is an option for fiber optic cable point of beginning Beluga River TL- TL- TL- TL- MP- MP- MP- MP- MP- TL- MP- MP- TL- MP- MP-0 MP- TL- MP- # MP-0 Fiber optic cable would continue with pipeline to mine site in buried mode Donlin Gold gas pipeline point of beginning (MP-0) Medium voltage above-ground transmission line is no longer proposed for use to provide electric power to compressor or metering station Potential Beluga construction-phase camp location/storage yard!.!( Landing area/storage yard C O O K I N L E T K Proposed Transmission Milepost (TL-) Proposed Gasline Milepost (MP-) # Compressor Station Proposed Natural Gas Pipeline Alingment Proposed Transmission Line!. Eisting Power Plant Eisting Camp Eisting Storage Yard Attachment SCALE: 0 mi 0. km USGS Tyonek Quad K Seward Meridian, UTM Zone, NAD ELECTRIC TRANSMISSION LINE AND FIBER OPTIC CABLE DONLIN GOLD PROJECT FIGURE: DG: PER0.md, 0//, R

31 MP- MP MP-0 MP-0 MP-0 MP-0 S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W MP MP-0 MP-0 MP-0 0 MP-0 0 MP-0 S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W MP- S0N0W S0N0W S0N0W S0N0W MP-00 MP MP- MP- S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W MP- MP- MP- 0 MP- MP S0N0W S0N0W S0N0W S0N0W S0N0W S0N0W MP- S0N0W S0N0W S0N0W S0N0W 0000 MP- MP- MP- MP- MP- MP- Copyright: National Geographic Society, i-cubed CURRENT PIPELINE ALIGNMENT/FOOTPRINT HDD Entry/Eit Airstrip Water Etraction Site Camp Current Milepost (MP-) Material Site Current Pipeline Alignment Previous Pipeline Alignment Pipe Storage Yard Temporary HDD Workspace Work Pad Shoofly Access Route Site Access Route 0000 DETAILED LAND STATUS () Happy River, Remote Recreational Cabin Staking Area Commercial Guide Camp Permit or Lease or Easement Applicaiton State-Identified RS Public Right-of-Way (Non-section line) Iditarod Trail, Public Access Easement (00' Wide) Iditarod National Historical Trail (INHT), Easement (00' Wide) Geoinformatics Alaska Eploration, Inc. BRI Alaska Corp. State-Owned, Tentatively Approved (TA) or Patented Land e e e Federal Land, Federal e e e Aviation Administration Private Land INHT Easement (ADNR, Pre-) Attachment K NORTH ROUTE FOOTPRINT AND LAND DETAILS DONLIN GOLD PROJECT FIGURE: SCALE: mi km Seward Meridian, UTM Zone, NAD DG: PER0.md, /0/, R0