TYHEE GOLD CORP

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Message: How To Make a PF and DAR.
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Feb 21, 2010 03:40PM
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Feb 21, 2010 05:37PM
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Feb 21, 2010 11:06PM
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Feb 22, 2010 08:33AM

Feb 22, 2010 08:39AM

Thanks Pepi, I will post these lists on the "PROFILE" section of the Hub.

Below is a brief summary of tasks which, according to Dr. Webb, Tyhee's been following as provided by its contributing engineers:

Task 1: Prefeasibility Criteria
Establishment of Standards & Reporting Schedule
- Terms of Reference
Review of Similar Project Pre-Feasibilty Studies
Task 2: General Site Information
Update Site Map for Ormsby
Detailed Topography and Update Site Map for Nicholas Lake
Task 3: Geology & Resources
Desktop Study
Independent Review: QA/QC of All Resources
Sampling/Assaying Flow Diagram
Assay Check Graph
Block Model Update Using Gemcom
Site Visits
Reporting
Addition of ARD Data to Gemcom
Geologic Cross-Sections
Drill Hole Location Map
Statistics
Mineral Resource/Reserve Estimate (Mintec)
Task 4: Groundwater Data
Project Management and Planning
Project Management
Background/GAP Analysis and Program Planning
Field Program
Monitoring Wells/Installation Ormsby
Monitoring Wells/Installation Nicholas Lake
Packer Tests (in Coordination with Geotech Drill Holes) Ormsby
Packer Tests (in Coordination with Geotech Drill Holes) Nicholas Lake
Monitoring Wells-Static and Slug Tests Ormsby
Monitoring Wells-Static and Slug Tests Nicholas Lake
Reporting
Lab Analysis (Water Quality)
Reporting
Task 5: Hydrology/Water Balance
Project Management
Update Climate Data Input to Water Balance
Update Hydrology Data Input to Water Balance
Gathering Hydrogeological and Mining Components
Compiling Water Balance
Report
Site Visit - Installation of Lake Level Monitoring Stations
Task 6: Mining
Ormsby
Method and Plans (Open Pit and Underground)
- Pit Optimization (Mintec)
- Final Pit Outline (Mintec)
- Annual Pit Outline (Mintec)
- Ramp Design (Mintec)
- Underground Mine Development (Mintec)
- Underground Stoping System (Mintec)
- Equipment Selection (Mintec)
Waste Dump Design
- Deliniation of NAG and PAG Volumetrics
- Final Dump Outline
- Annual Dump Outline
Design of PAG Waste Dump Runoff Pond (Other)
- Geochemistry (Other)
- Runoff Treatment (Other)
Production Scheduling
- Alternatives
- High Grade Scenario (Mintec)
Capital & Operating Cost Estimates
Trade-off Analysis: Open Pit vs Underground
Nicholas Lake
Method and Plans (Open Pit and Underground)
- Pit Optimisation (Mintec)
- Final Pit Outline (Mintec)
- Annual Pit Outline (Mintec)
- Ramp Design (Mintec)
- Underground Mine Development (Mintec)
- Underground Stoping System (Mintec)
- Equipment Selection (Mintec)
Waste Dump Design
- Deliniation of NAG and PAG Volumetrics
- Final Dump Outline
- Annual Dump Outline
Design of PAG Waste Dump Runoff Pond (Other)
- Geochemistry (Other)
- Runoff Treatment (Other)
Production Scheduling
- Alternatives
- High Grade Scenario (Mintec)
Capital & Operating Cost Estimates
Trade-off Analysis: Open Pit vs Underground
Task 7: Geotechnical Characterization
Ormsby Gap Analysis and Geotechnical Drill Program Planning
Nicholas Lake Gap Analysis and Geotechnical Drill Program Planning
Ormsby Field Program (Drilling and Logging)
Nicholas Lake Field Program (Drilling and Logging)
Underground Stope Review/Write Up
Analysis and Reporting Ormsby
Analysis and Reporting Nicholas Lake
Task 8: Ore Transportation Systems
Trade-off Analysis: All Season Road vs Ice Road
Schedule Impacts (Winter vs. All Season)
Design of Nicholas Lake Haul Road to Ormsby
Capital & Operating Cost Estimates
Task 9: Ore Processing
Land Selection for Process Plant
Method & Plans
Capital & Operating Cost Estimates
Trade-off Analysis: Costing for Extraction of Silver and Tungsten
Task 10: Metallurgy Work
Gap Study Ormsby
Gap Study Nicholas Lake
Sampling and Analysis Ormsby/Nicholas Lake
Tailings Characterization
Reporting
Task 11: Tailings
Terrain Analysis of Alternate Tailings Storage Areas
Trade-off Analysis: Tailings Disposal Options
Tailings and Waste Rock Management Plans
- Dam Construction Conceptual Design
- Water Mangement (Overflow, etc…)
- Geotechnical Instrumentation Requirements
- Polishing Area
- Sediment Control Structure
- Detoxification (Other)
Scoping for Additional Geotechnical Works
Capital & Operating Cost Estimates (Meritt)
Task 12: Infrastructure & Administration Facilities
Review of Existing Information
Terrain Analysis of Proposed Structure Locations and Access Road Routing
Geotechnical Investigation by Coring with Diamond Drill Rig
- Mill (Met/Assay Lab)
- Site Roads
Reporting
Water Supply and Treatment (Other)
Sewage Management and Treatment (Other)
Capital & Operating Cost Estimates (Meritt)
Task 13: Powerline & Substation
Capital & Operating Cost Estimates
Trade-off Analysis: Powerline vs Generator
Task 14: Environmental & Permitting
Baseline Environmental Status Review
Permit List
Environmental Studies & Permitting
Task 15: Socio-Economic
Socio-Economic Impacts Report
Task 16: Reclamation
Preliminary Closure Plan
Task 17: Development Schedule
Schedule Chart
Task 18: Economics
Principal Economic Parameters (Industry Norms)
Royalties & Taxes
Cash Flows
Sensitivities & Risk Analysis
Gold Market Analysis
Task 19: Compilation of Prefeasibility Report
Project Management/Meetings
Report Compilation & Appendices/Assembly
Owners Review of Methods, Plans, Costs

The process was to take 12 months, and Tyhee is 7 months into it. Tyhee stated it would be completed in Q2 2010, H1 2010, or before the end of June 2010. In each case Tyhee's referring to the same timeframe that it stated from day 1, and it is on schedule. No delays.

The DAR is equally complex and has its own set of studies:

1.0 INTRODUCTION
1.1 Corporate Overview
1.2 Corporate Governance
1.3 Environmental Policy
1.4 Properties
1.4.1 Yellowknife Gold Project (YGP)
1.4.2 Gold Resource
1.5 Mineral Claims and Leases
1.6 Required Permits, Licences and Authorizations
2.0 PROJECT DESCRIPTION
2.1 Rationale for Project
2.2 Project, Resources and Access
2.3 Project History
2.3.1 Discovery Mine
2.3.2 Previous Exploration – Discovery and Ormsby Zones
2.3.3 Previous Exploration – Nicholas Lake Main Zone
2.3.4 Tyhee NWT Corp Exploration – Ormsby, Bruce Lake and Nicholas Lake
Main Zones
2.4 Project Alternatives
2.5 Geology
2.5.1 Property Geology
2.5.1.1 Ormsby
2.5.1.2 Nicholas Lake
2.5.2 Mineralization
2.5.3 Resource and Reserve Estimate
2.5.4 Exploration Potential
2.5.5 Seismicity
2.6 Site Preparation and Construction
2.7 Construction Materials
2.8 Mine Plan and Operation
2.9 Mine Production Schedule
2.10 Mine Life
2.11 Processing
2.11.1 Ore Processing
2.11.2 Process Plant
2.11.3 Crushing
2.11.4 Grinding
2.11.5 Flotation
2.11.6 Regrinding and Thickening
2.11.7 Leaching
2.11.8 Carbon Elution and Regeneration
2.11.9 Reagents
2.12 Waste Management
2.12.1 Acid Rock Drainage (ARD) and Waste Rock Storage Area (WRSA)
2.12.2 Acid Generation Potential (ARD) for Nicholas Lake Deposit
2.12.3 Waste Rock Storage Areas
2.12.4 Tailings Containment Area (TCA)
2.12.5 Preferred Option for Tailings Containment - Winter Lake
2.12.5.1 Tailings Containment Area - Operation
2.12.6 Solid and Hazardous Waste
2.12.7 Sewage
2.13 Water Management
2.13.1 Objectives
2.13.2 Climate Analysis
2.13.3 Water Balance
2.13.4 Water Balance for Nicholas Lake Deposit
2.14 Support Infrastructure
2.14.1 Power Plant
2.14.2 Airstrip
2.14.3 Changehouse, Compressor House, Offices, Warehouse and Maintenance
Shops
2.14.4 Fuel Storage
2.14.5 Explosives Storage
2.14.6 Roads
2.14.7 Camp
2.14.8 Winter Road
2.15 Human Resources
2.15.1 Workforce
2.15.2 General and Administrative
2.15.3 Mining
2.15.4 Process Plant
2.15.5 Training Program
2.15.6 Emergency Services
2.16 Project Schedule
3.0 DESCRIPTION OF THE ENVIRONMENT
3.1 Introduction
3.2 Present Land Uses
3.3 Environmental Setting
3.4 Climate
3.4.1 Climate Monitoring
3.4.1.1 Wind Speed and Direction
3.4.1.2 Air Temperature
3.4.1.3 Incident Solar Radiation
3.4.1.4 Relative Humidity
3.4.1.5 Barometric Pressure
3.4.1.6 Precipitation
3.4.1.7 Snow Surveys
3.4.1.8 Evaporation
3.4.2 Climate Trends
3.5 Air Quality
3.5.1 Sources of Emission
3.5.2 Air Quality Standards
3.5.3 Ambient Monitoring Data
3.5.3.1 Total Suspended Particulate (TSP) Concentrations
3.5.3.2 PM2.5 Concentrations
3.5.3.3 SO2 Concentrations
3.5.3.4 NO2 Concentrations
3.5.3.5 O3 Concentrations
3.5.4 Site Collection of Ambient Air Quality Data
3.6 Noise
3.7 Soils and Vegetation
3.7.1 Soils
3.7.2 Vegetation
3.7.3 Ecosystem Types
3.7.3.1 Forest and Woodland
3.7.3.2 Riparian
3.7.3.3 Wetland
3.7.3.4 Sparsely Vegeta ted
3.7.3.5 Water
3.7.3.6 Other Units
3.7.4 Broad Ecosystem Units
3.7.5 Rare Plants and Communities
3.8 Biodiversity
3.8.1 Northern Boreal Characteristics
3.8.2 Species Diversity
3.8.3 Structural and Functional Diversity
3.8.4 Landscape-level Diversity
3.9 Hydrology
3.9.1 Hydrological Monitoring
3.9.1.1 Narrow Lake Drainage Basin
3.9.1.2 Brien Lake Drainage Basin
3.9.1.3 Winter Lake Drainage Basin
3.9.1.4 Round Lake Drainage Basin
3.9.1.5 Northeast Brien Lake Site
3.9.1.6 Nicholas Lake Drainage Basin
3.10 Groundwater
3.10.1 Evaluation of Available Groundwater Information
3.10.1.1 General
3.10.1.2 Permafrost influence on groundwater flow patterns
3.10.1.3 Groundwater Quality
3.10.1.4 Topography and Surface Watersheds
3.10.1.5 Stream flow data
3.10.1.6 Surface Geologic Outcrop and Structure
3.10.1.7 Packer Test Data
3.11 Surface Water Quality
3.11.1 Water Quality Parameters
3.11.2 Quality Assurance/Quality Control
3.11.2.1 Travel Blanks
3.11.2.2 Field Blanks
3.11.2.3 Duplicates
3.11.3 Metals
3.11.3.1 Aluminium
3.11.3.2 Arsenic
3.11.3.3 Cadmium
3.11.3.4 Copper
3.11.3.5 Iron
3.11.3.6 Mercury
3.11.3.7 Nickel
3.11.3.8 Other Metals
3.11.4 Nutrients
3.11.4.1 Ammonia
3.11.4.2 Nitrate
3.11.4.3 Total Phosphorous
3.11.5 Temperature and Dissolved Oxygen
3.11.5.1 Narrow Lake
3.11.5.2 Winter Lake
3.11.6 Water Quality Summary
3.12 Aquatic Resources
3.12.1 Background Investigations
3.12.2 Aquatic Resource Investigations – 2004
3.12.3 Lake Shoreline Habitat
3.12.3.1 Round Lake
3.12.3.2 Winter Lake
3.12.3.3 Eclipse Lake
3.12.3.4 Nicholas Lake
3.12.3.5 Brien Lake
3.12.3.6 Narrow Lake
3.12.4 Stream Habitat
3.12.4.1 Round Lake
3.12.4.2 Winter Lake
3.12.4.3 Eclipse Lake
3.12.4.4 Nicholas Lake
3.12.4.5 Brien Lake
3.12.4.6 Narrow Lake
3.12.5 Fish Population Relative Abundance, Distribution and Species
Composition
3.12.5.1 Round Lake
3.12.5.2 Winter Lake
3.12.5.3 Eclipse Lake
3.12.5.4 Nicholas Lake
3.12.5.5 Brien Lake
3.12.5.6 Narrow Lake
3.12.6 Fish Biological Characteristics
3.12.6.1 Northern Pike
3.12.6.2 Lake Trout
3.12.6.3 Lake Whitefish
3.12.7 Fish Tissue – Metals Analysis
3.12.8 Zooplankton
3.12.8.1 Round Lake
3.12.8.2 Winter Lake
3.12.8.3 Eclipse Lake
3.12.8.4 Nicholas Lake
3.12.8.5 Brien Lake
3.12.8.6 Narrow Lake
3.12.9 Benthic Invertebrates
3.12.9.1 Lakes
3.12.10 Streams
3.12.11 Lake Sediment Quality
3.12.11.1 Round Lake
3.12.11.2 Winter Lake
3.12.11.3 Eclipse Lake
3.12.11.4 Nicholas Lake
3.12.11.5 Brien Lake
3.12.11.6 Narrow Lake
3.12.12 Aquatic Resource Studies 2005
3.12.12.1 Fish Species Composition, Relative Abundance, Distribution
and Age
3.12.12.2 Winter Lake Habitat
3.12.12.3 Fish Tissue Metals
3.12.12.4 Water Quality
3.12.12.5 Proposed Access Road – Nicholas Lake to Ormsby
3.13 Wildlife
3.13.1 Mammals
3.13.1.1 Caribou
3.13.1.2 Moose
3.13.1.3 Black Bears and Grizzly Bears
3.13.1.4 Wolves
3.13.1.5 Wolverine
3.13.1.6 Foxes
3.13.1.7 Carnivore (Esker Survey)
3.13.2 Birds
3.13.2.1 Passerines
3.13.2.2 Raptors
3.13.2.3 Peregrine Falcon
3.13.2.4 Owl Survey
3.13.2.5 Waterfowl
3.14 Heritage and Cultural Resources
3.14.1 2004 Investigations
3.14.1.1 Existing Conditions
3.14.1.2 Discovery/Ormsby Area
3.14.1.3 Nicholas Lake Area
3.14.1.4 Road between Nicholas Lake and Ormsby Area
3.14.2 2005 Investigations
3.14.3 Traditional Land Use Study North Slave Métis Alliance (NSMA)
3.14.3.1 Métis Traditional Use 1700’s to 1960’s
3.14.3.2 Current Métis Land Use in the Yellowknife River drainage
3.14.4 Traditional Land Use Data Yellowknives Dene First Nation (YDFN)
4.0 PUBLIC CONSULTATION AND COMMUNICATIONS
4.1 Consultation and Communications Program
4.1.1 Aboriginal Communities
4.1.2 Regulatory Agencies
4.2 Consultation Outcomes
5.0 ENVIRONMENTAL EFFECTS, MITIGATION AND MONITORING
5.1 Valued Ecosystem Components
5.2 Environmental Effects
5.3 Air Quality
5.3.1 Description of Impacts
5.3.2 Air Monitoring Programs
5.4 Water Quality
5.4.1 Description of Impacts
5.4.2 Monitoring Programs
5.5 Fish and Habitat
5.5.1 Description of Impacts
5.5.2 Monitoring Program
5.6 Wildlife
5.6.1 Description of Impacts
5.6.2 Monitoring Program
5.7 Vegetation
5.7.1 Description of Impacts
5.7.2 Monitoring Programs
5.8 Environmental Management Systems

In addition, a number of alternative studies have been conducted, each with an exhaustive list of criteria.

B.

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