Appendix A Technical Summary (PDF 303KB)

Appendix A: Analytical Quality Assurance / Quality Control Review (PDF 4MB) – Describes the analytical quality assurance (QA)/quality control (QC) program developed by Shaw Alaska, Inc., to govern the quality of chemistry data.
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Appendix B Technical Summary (PDF 852KB)

Appendix B: Iliamna Lake Study (PDF 5MB) – Includes study goals, objectives, methods and results for water quality, sediment, mussel tissue and zooplankton of Iliamna Lake as they relate to the Pebble Project.
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Appendix C Technical Summary (PDF 71KB)

Appendix C: Data Management and Geographic Information System (PDF 1MB) – Describes the data management and geographic information system (GIS) program currently in progress at Resource Data, Inc. (RDI) for the Pebble Project. Sound data management strategies ensure that the data are accurate, timely and integrated into a multi…
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Appendix D Technical Summary (PDF 38KB)

Appendix D: Chemical Abbreviations (PDF 40KB) – Provides definitions for the chemical abbreviations used in the Environmental Baseline Document.
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Appendix E Technical Summary (PDF 81KB)

Appendix E: Consolidated Study Program (PDF 63MB) – Summarizes study program for environmental and socioeconomic baseline studies. Contains 19 sections, each summarizing study plans for 5 years of study.
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Appendix F Technical Summary (PDF 44KB)

Appendix F: Field Sampling Plans (PDF 54MB) – Contains the field sampling plans developed by individual consultants for their respective study disciplines.
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Appendix G Technical Summary (PDF 39KB)

Appendix G: Quality Assurance Project Plans (PDF 2MB) – Contains the quality assurance project plans (QAPPs), which document the people and procedures by which the Pebble Partnership assured that the baseline studies for chemical characterization met rigid quality standards for sample handling and laboratory a…
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Chapter 1: Introduction (PDF 5MB) – Introduction to the Environmental Baseline Document. Provides an overview of the project, its timeline, approaches, and the format of the document itself.
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Chapter 2 Technical Summary (PDF 1MB)

Chapter 2: Climate and Meteorology (Bristol Bay Drainages) (PDF 96MB) – Meteorological data have been collected at six monitoring locations in the mine study area.
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Chapter 3 Technical Summary (PDF 586KB)

Chapter 3: Geology and Mineralization (Bristol Bay Drainages) (PDF 51MB) – This chapter discusses the baseline geology and mineralization characteristics of the mine study area in the Bristol Bay drainages, including edrock and surficial geology, geologic structure, deposit types, alteration, and mineralization. Detailed discuss…
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Chapter 4 Technical Summary (PDF 149KB)

Chapter 4: Physiography (Bristol Bay Drainages) (PDF 10MB) – Discusses the physiography of the study area in the Bristol Bay drainages, including topography, landforms, and stream drainage patterns.
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Chapter 5 Technical Summary (PDF 1MB)

Chapter 5: Soils (Bristol Bay Drainages) (PDF 6MB) – Reviews historical soils data from the region to determine typical and common soil types within the study area.
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Chapter 6 Technical Summary (PDF 6MB)

Chapter 6: Geotechnical Studies, Seismicity and Volcanism (Bristol Bay Drainages) (PDF 60MB) – This chapter describes the baseline geotechnical characteristics for the mine study area and the seismicity characteristics of the Bristol Bay drainages study area, which encompasses the mine study area and part of the transportation corridor study area.
Tags: geotechnical seismicity seismic volcano volcanism vulcanism knight piésold

Chapter 7 Technical Summary (PDF 7MB)

Chapter 7: Surface Water Hydrology (Bristol Bay Drainages) (PDF 104MB) – Describes the regional hydrologic characteristics of the Bristol Bay drainages, presents hydrologic and snow data collected within the mine study area, and describes the stream channels that intersect the linear study area of the transportation corridor.
Tags: water h20 hydrology streamflow snowpack runoff bristol bay 3 parameters plus abr bristol environmental knight piésold

Chapter 8 Technical Summary (PDF 3MB)

Chapter 8: Groundwater Hydrology (Bristol Bay Drainages) (PDF 178MB) – Presents the findings of the hydrogeology study tasks carried out from 2004 to 2008 for the Pebble Project. The study included the installation of background monitoring wells and piezometers, the collection of groundwater samples and the collection of add…
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Chapter 9 Technical Summary (PDF 547KB)

Chapter 9: Water Quality (Bristol Bay Drainages) (PDF 59MB)
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Chapter 10 Technical Summary (PDF 390KB)

Chapter 10: Trace Elements and Other Naturally Occurring Constituents (Bristol Bay Drainages) (PDF 19MB) – Presents findings conducted from 2004-2008, focusing on soils and vegetation in mine study and transportation corridor. Freshwater sediment and fish tissue studies are also included.
Tags: Naturally Occurring Constituents NOC minerals metals cations anions total corganic carbon petroleum-range hydrocarbons

Chapter 11 Technical Summary (PDF 186KB)

Chapter 11: Geochemical Characterization (Bristol Bay Drainages) (PDF 39MB) – Presents findings of a geochemical characterization program focused toward understanding the metal leaching and acid rock drainage risks associated with the rock types present in the general deposit area within the Pebble Project mine study area.
Tags: geochemistry SRK Consulting

Chapter 12 Technical Summary (PDF 85KB)

Chapter 12: Noise (Bristol Bay Drainages) (PDF 12MB) – Provides the results of noise-monitoring surveys performed in and around the communities of Iliamna, Newhalen, Pedro Bay and Nondalton. The purpose of noise monitoring is to describe baseline noise levels and to characterize the existing noise environment…
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Chapter 13 Technical Summary (PDF 12MB)

Chapter 13: Vegetation (Bristol Bay Drainages) (PDF 48MB) – Describes dominant vegetation types in mine mapping area, and protocols used to produce map of vegetation types. Overlaps with and supports Chapters 14, 16, 39 and 41.
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Chapter 14 Technical Summary (PDF 2MB)

Chapter 14: Wetlands and Waterbodies (Bristol Bay Drainages) (PDF 102MB) – Summarizes the effort to characterize wetlands and waterbodies, and locations and extents within mine study area.
Tags: wetland aerial mapping vegetation waterbodies hydrogeomorphic Three Parameters Plus HDR Alaska

Chapter 15 Technical Summary (PDF 5MB)

Chapter 15: Fish and Aquatic Invertebrates (Bristol Bay Drainages) (PDF 208MB) – Describes baseline fish population characteristics and aquatic habitat conditions that may influence fish presence, distribution, and abundance.
Tags: R2 Resource Consultants HDR Alaska Buell and Associates Bailey Environmental EcoFish Inter-Fluve Pacific Hydrologic Invertebrate North Fork Koktuli South Fork Koktuli Upper Talarik watersed upper Koktuli River Fish

Chapter 16 Technical Summary (PDF 9MB)

Chapter 16: Wildlife and Habitat (Bristol Bay Drainages) (PDF 251MB) – Provides a baseline inventory of the availability of wildlife habitats in the study area, and assesses their value to a selected set of bird and mammal species of concern.
Tags: ABR Inc. Environmental Research Services habitat assessment bristol bay Mulchatna Herd caribou bears raptors Bald eagles Golden eagles Northern Goshawks Peregrine Falcons Gyrfalcons Merlins Great Horned Owls Tundra Swan Red-throated Loon Common Loon Harl

Chapter 17 Technical Summary (PDF 33KB)

Chapter 17: Threatened and Endangered Species (Bristol Bay Drainages) (PDF 1MB) – Largely represents existing information. For plants, determines rare vascular taxa with a probability of occurrence, based on known range, etc. For vertebrates, summarizes information for species of conservation concern within the study area.
Tags: vascular taxa plants vertebrates bristol bay conservation status

Chapter 18 Technical Summary (PDF 18KB)

Chapter 18: Land and Water Use (Bristol Bay Drainages) (PDF 31MB) – Describes and maps the existing ownership, use, and management status of lands and surface waters in the Bristol Bay drainages study area for the Pebble Project. The chapter considers all land uses except subsistence uses, which are addressed in Chapter 2…
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Chapter 19 Technical Summary (PDF 19KB)

Chapter 19: Transportation (Bristol Bay Drainages) (PDF 25MB) – Describes existing and planned inter- and intra-regional overland, water and air transportation facilities and services for the communities in the Lake and Peninsula Borough (L&PB) nearest to possible Pebble Project facilities.
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Chapter 20 Technical Summary (PDF 2MB)

Chapter 20: Power (Bristol Bay Drainages) (PDF 2MB) – Documents key features of the existing electrical power and petroleum fuels supply systems in the Bristol Bay and regional communities.
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Chapter 21 Technical Summary (PDF 39KB)

Chapter 21: Socioeconomics (Bristol Bay Drainages) (PDF 2MB) – Includes detailed data and information on study area demographics, economy and infrastructure, as well as a brief overview of the area’s history and culture. Demographics include population size, age, race and household characteristics. The discussion of …
Tags: socioeconomics bristol bay kevin waring & associates mcdowell group Iliamna Lake Lake Clark Nondalton Newhalen Kokhanok Port Alsworth Iliamna Pedro Bay Levelock Igiugig Bristol Bay Borough Dillingham Lake and Peninsula Borough Nushagak

Chapter 22 Technical Summary (PDF 291KB)

Chapter 22: Cultural Resources (Bristol Bay Drainages) (PDF 63MB) – Summarizes the existing information on the prehistory, ethnography and history relevant to cultural resources on lands in the Bristol Bay drainages in the mine study area related to the Pebble Deposit. It also presents the findings of cultural resources s…
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Chapter 23 Technical Summary (PDF 184KB)

Chapter 23: Subsistence Uses and Traditional Knowledge (Bristol Bay Drainages) (PDF 66MB) – Establishes a description of the subsistence uses and a knowledge of local resources, local issues and concerns. Includes a literature review and field research conducted from 2005 – 2010.
Tags: subsistence use traditional use bristol bay stephen r. braund and associates Nondalton Port Alsworth Iliamna Newhalen Pedro Bay Kokhanok Igiugig Lime Village Koliganek New Stuyahok Ekwok Portage Creek Dillingham Clark’s Point Manokotak Aleknagik Kvichak

Chapter 24 Technical Summary (PDF 79KB)

Chapter 24: Visual Resources (Bristol Bay Drainages) (PDF 44MB) – Describes work completed during 2004 through 2008, characterizing visual resources in the Bristol Bay drainages. This visual resources analysis uses tools and methodologies described in the U.S. Forest Service (USFS) document Landscape Aesthetics, A Handb…
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Chapter 25 Technical Summary (PDF 3MB)

Chapter 25: Recreation (Bristol Bay Drainages) (PDF 54MB) – Inventories, describes, quantifies and maps the outdoor recreational resources and activities in the Bristol Bay drainages study area.
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Chapter 26 Technical Summary (PDF 982KB)

Chapter 26: Climate and Meteorology (Cook Inlet Drainages) (PDF 43MB) – The objective of the meteorology data-collection program is to collect surface meteorological data. Three meteorological stations were installed in the Cook Inlet study area at three possible port site areas.
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Chapter 27 Technical Summary (PDF 721KB)

Chapter 27: Geography (Cook Inlet) (PDF 4MB)

Chapter 28 Technical Summary (PDF 176KB)

Chapter 28: Physiography (Cook Inlet Drainages) (PDF 3MB) – Discusses the physiography of the Cook Inlet drainages study area including topography, landforms, stream drainage patterns and coastal features. This discussion is based on review of published information and oblique aerial photographs taken during recon…
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Chapter 29 Technical Summary (PDF 1MB)

Chapter 29: Soils (Cook Inlet Drainages) (PDF 2MB) – Reviews historical soils data from the region to determine typical and common soil types within the study area.
Tags: soil review three parameters plus bristol bay drainages

Chapter 30 Technical Summary (PDF 22KB)

Chapter 30: Geotechnical Studies, Seismicity and Volcanism (Cook Inlet Drainages) (PDF 2MB) – Discusses the baseline geotechnical and volcanism characteristics of the Cook Inlet drainages study area. A regional overview of seismicity in southern Alaska, including Cook Inlet, is presented in Chapter 6 and is not repeated in this chapter.
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Chapter 31 Technical Summary (PDF 1MB)

Chapter 31: Surface Water Hydrology (Cook Inlet Drainages) (PDF 6MB) – Presents the findings of the baseline surface-water hydrology studies for the transportation corridor study area within the Cook Inlet drainage.
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Chapter 32 Technical Summary (PDF 25KB)

Chapter 32: Groundwater Hydrology CI (PDF 9KB) – This chapter intentionally left blank, for potential future additions to the Baseline Document.
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Chapter 33 Technical Summary (PDF 17KB)

Chapter 33: Surface Water Quality (Cook Inlet Drainages) (PDF 1MB) – Presents findings of 2004-2007 surface water quality study for Cook Inlet drainages.
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Chapter 34 Technical Summary (PDF 258KB)

Chapter 34: Oceanography and Marine Water Quality (Cook Inlet Drainages) (PDF 5MB) – Presents general findings from literature and observations from 2004-2008 field studies of physical oceanography in the marine study area for the Pebble Project.
Tags: Pentec Environmental Hard Crowser SLR International Oceanography Marine Water Quality Iniskin Bay Illamna Bay Cook Inlet estuaries Kamishak Bay depth shape tital range currents ice-scour action.

Chapter 35 Technical Summary (PDF 569KB)

Chapter 35: Trace Elements (Cook Inlet Drainages) (PDF 5MB) – Describes the trace elements (metals) in soul and terrestrial vegetation of the Cook Inlet drainages study area. Temporal variability of elements, anions and cations was measure by sampling in 2004, 2006 and 2007. Subset of soil samples analyzed for petro…
Tags: SLR Alaska Pentec Environment Hart Crowser Trace Elements hydrocarbons diesel petroleum vegetation soil sample mineral trace elements anions cations organic carbon.

Chapter 36 Technical Summary (PDF 362KB)

Chapter 36: Marine Nearshore Habitat (Cook Inlet Drainages) (PDF 5MB) – Marine shorelines and intertidal habitats in the Iniskin/Iliamna Estuary are highly diverse and range from sheltered mudflats to exposed rocky shores and offshore reefs. This chapter provides general descriptions of nearshore habitats in the IIE, to provi…
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Chapter 37 Technical Summary (PDF 17KB)

Chapter 37: Noise (Cook Inlet Drainages) (PDF 1MB) – Describes predicted noise levels for the Pebble Project study area in the Cook Inlet drainages. This has been accomplished by using measured data from similar areas in Alaska. A general explanation of noise and noise-level descriptors is provided in Chapt…
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Chapter 38 Technical Summary (PDF 1MB)

Chapter 38: Vegetation (Cook Inlet Drainages) (PDF 35MB) – Summarizes vegetation study conducted for the Cook Inlet drainages area. Describes prominent vegetation types, presents classification system, describes types, maps vegetation.
Tags: HDR Alaska Three Parameters Plus Vegetation Cook Inlet Drainages Plants moss lichen rare species AKNHP weeds noxious invasive

Chapter 39 Technical Summary (PDF 1MB)

Chapter 39: Wetlands (Cook Inlet Drainages) (PDF 4MB) – Summarizes wetlands and waterbodies study for the Cook Inlet drainages. Compare with Chapter 14 (Bristol Bay). Characterization based on USACE definitions and procedures. Determines locations of wetlands and waterbodies over 3,870 acres of Cook Inlet.
Tags: HDR Alaska Three Parameters Plus Vegetation wetland waterbody cook inlet mapping cartography

Chapter 40 Technical Summary (PDF 2MB)

Chapter 40: Freshwater Fish and Aquatic Invertebrates (Cook Inlet Drainages) (PDF 6MB) – Characterizes typical conditions within Cook Inlet Basin watersheds along possible road alignment within transportation corridor.
Tags: transportation corridor cook inlet watershed fish aquatic freshwater williams creek y-valley creek iniskin bay streams

Chapter 41 Technical Summary (PDF 3MB)

Chapter 41: Wildlife and Habitat (Cook Inlet Drainages) (PDF 56MB) – Summarizes wildlife habitat mapping and value assessment studies. Provides a baseline inventory of terrestrial, freshwater and marine wildlife habitats, and assesses value to a selected set of bird and mammal species of concern.
Tags: habitat assessment cook inlet mammal bird freshwater marine inventory ABR Inc. Environmental Research & Services

Chapter 42 Technical Summary (PDF 236KB)

Chapter 42: Marine Benthos (Cook Inlet Drainages) (PDF 4MB) – Describes benthic marine flora and fauna in Iniskin and Iliamna bays. Benthic flora is comprised of diatoms, seagrass, kelp (large brown algae) and various other species of algae; benthic fauna includes animals such as sponges, worms, limpets, mollusks, b…
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Chapter 43 Technical Summary (PDF 3MB)

Chapter 43: Nearshore Fish and Invertebrates (Cook Inlet) (PDF 4MB) – Describes fish and macroinvertebrate fauna in Iniskin and Iliamna bays based on existing literature and on field investigations conducted over a 5-year period from 2004 through 2008.
Tags: pentec environmental nearshore fish cook inlet salmon herring otter seine gill trammel net spawn flounder dolly varden smelt snake prickleback yellowfin shrimp

Chapter 44 Technical Summary (PDF 591KB)

Chapter 44: Marine Wildlife (Cook Inlet Drainages) (PDF 38MB) – Presents the findings of marine wildlife surveys conducted in Cook Inlet drainages from 2004-2008. Describes seasonal distribution and abundance of marine birds and mammals in study area.
Tags: marine wildlife birds waterfowl avians mammals ABR Inc Environmental Research Services Steller’s Eider sea otter Steller’s sea lion beluga Kittlitz’s Murrelet harbor seal

Chapter 45 Technical Summary (PDF 321KB)

Chapter 45: Threatened and Endangered Species (Cook Inlet Drainage) (PDF 2MB) – Largely represents existing information. For plants, determines rare vascular taxa with a probability of occurrence, based on known range, etc. For vertebrates, summarizes information for species of conservation concern within the study area.
Tags: vascular taxa plants vertebrates conservation concern range habitat cook inlet

Chapter 46 Technical Summary (PDF 23KB)

Chapter 46: Land and Water Use (Cook Inlet Drainages) (PDF 11MB) – The purpose of this land use baseline study is to describe the existing ownership, use and management of land and surface waters in the Cook Inlet drainages study area. (This chapter considers all land uses except subsistence uses, which are addressed in …
Tags: land use water use cook inlet kevin waring & associates

Chapter 47 Technical Summary (PDF 4MB)

Chapter 47: Transportation (Cook Inlet Drainages) (PDF 17M) – Describes mainly existing and planned transportation facilities and services on the west Cook Inlet coast. (For this chapter, “planned” or “proposed” transportation facilities pertain to facilities being considered or undertaken by federal, state, and loc…
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Chapter 48 Technical Summary (PDF 9KB)

Chapter 48: Power (Cook Inlet Drainages) (PDF 2MB) – Documents key features of the existing electrical power and petroleum fuels supply systems in the Cook Inlet drainages of the western Cook Inlet coast.
Tags: power electric electricity petroleum fuel cook inlet kevin waring & associates

Chapter 49 Technical Summary (PDF 17KB)

Chapter 49: Socioeconomics (Cook Inlet Drainages) (PDF 121KB) – This socioeconomic baseline description includes borough-level data and information on the demographics and economy in the Cook Inlet study area. Demographics include population size, age and race. The discussion of the economy includes data on personal i…
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Chapter 50 Technical Summary (PDF 1MB)

Chapter 50: Cultural Resources (Cook Inlet Drainages) (PDF 11MB) – Summarizes information regarding prehistory, ethnography and history relevant to cultural resources in the Cook Inlet drainages on lands in the Cook Inlet Study Area related to the possible Pebble Project. Cultural resources may include historic buildings…
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Chapter 51 Technical Summary (PDF 9KB)

Chapter 51: Placeholder (PDF 23KB) – This chapter intentionally left blank, for future additions to the Baseline Document.
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Chapter 52 Technical Summary (PDF 83KB)

Chapter 52: Visual Resources (Cook Inlet Drainages) (PDF 14MB) – Describes work completed during 2004 through 2008, characterizing visual resources in the Cook Inlet drainages. This visual resources analysis uses tools and methodologies described in the U.S. Forest Service (USFS) document Landscape Aesthetics, A Handbo…
Tags: visual resources scenery landscape vista visibility scenic outlook land design north cook inlet

Chapter 53 Technical Summary (PDF 1MB)

Chapter 53: Recreation (Cook Inlet Drainages) (PDF 12MB) – Inventories, describes and maps the outdoor recreational resources and activities in the Cook Inlet drainages study area.
Tags: sportfishing hunting big game lodges caribou moose brown bear coho dolly varden chum pink sockeye grayling salmon cook inlet recreation kevin waring & associates

Table of Contents (PDF 121KB) – The Table of Contents for the Pebble Environmental Baseline Document