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PEBBLE PROJECT
DRAFT ENVIRONMENTAL BASELINE STUDIES PROPOSED 2008 STUDY PLANS
CHAPTER 5. GROUNDWATER HYDROLOGY
DRAFT
Prepared For: State of Alaska Large Mine Permitting Team
Department of Natural Resources
Prepared By:
3201 C Street, Suite 604 Anchorage, AK 99503
(907) 339-2600
August, 2008
DRAFT GROUNDWATER HYDROLOGY
SP_2008_DFT_Ch5_August2008 (2) 5-i Rev. 0 8/27/2008
TABLE OF CONTENTS
Section Page Number
TABLE OF CONTENTS ............................................................................................................................... i
LIST OF Tables ............................................................................................................................................. i
LIST OF FIGURES ....................................................................................................................................... i
5. Groundwater hydrology ......................................................................................................................... 1
5.1 Mine Study Area ........................................................................................................................... 1 5.2 Transportation Corridor ................................................................................................................ 3
LIST OF TABLES
Table 5.1-1, Summary of Hydrology tasks for 2008
Table 5.1-2, Period-of-Record Index, Groundwater Monitoring Locations, Mine Study Area, Wells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Table 5.1-3, Summary of Monitoring Wells and Piezometers by Drainage
Table 5.1-4, Study Summary for Groundwater Hydrology, Mine Study Area, 2004-2008
LIST OF FIGURES
Figure 5.1-1, 2008 Study Plan Groundwater Studies Mine Study Area
Figure 5.1-2, Existing Well and Piezometer Locations
Figure 5.1-2, Proposed Well and Piezometer Locations
DRAFT GROUNDWATER HYDROLOGY
5. GROUNDWATER HYDROLOGY
Water Management Consultants (WMC) is the prime consultant for the groundwater hydrology study, with support provided by SLR Alaska and Knight Piésold Consulting Engineers. Bristol Environmental and Engineering Services Corporation conducted the groundwater hydrology study for the transportation corridor. No data on groundwater hydrology are being collected for the transportation corridor in 2008.
5.1 Mine Study Area The study area for 2008 is presented in Figure 5.1-1 and the locations of existing wells and piezometers are presented in Figure 5.1-2. The objectives and scope of work for the 2008 groundwater hydrology study in the mine study area are the same as those described in the 2005, 2006, and 2007 Study Plans with exceptions noted below. The methods and approaches for the 2008 study are described in the Field Sampling Plan. A summary of the tasks for the hydrogeology study during 2008 is shown in Table 5.1-1.
TABLE 5.1-1 Summary of Hydrogeology Tasks for 2008
Task No. Task
201 Field Work Support
202 Input to Tasks by Others
203 Site Groundwater Model
204 Heat Transport Calculations
205 Pit and Underground Groundwater
206 Tailings Area Groundwater
207 Groundwater Supply Assessment
208 Impact Assessment
209 Meetings
210 Reporting
The following activities will be performed to support the groundwater hydrology program in 2008:
• Additional monitoring wells and piezometers will be installed (Figure 5.1-3).
– Approximately 43 drilling locations are planned as part of the hydrogeology program with most locations having two piezometers installed. These holes are the hydrogeology holes depicted as “HH” holes on Figure 5.1-3. Pump testing will be conducted at two or three of the piezometer locations.
– A single deep-bedrock multi-level piezometer (Westbay) will be installed in Pebble East. The instrumentation will be installed in the same way as the other Westbay system installed in 2006: to a depth of about 4,200 feet and will be instrumented with about 50 packers, 50 measurement ports, and 25 pumping ports.
SP_2008_DFT_Ch5_August2008 (2) 5-1 Rev. 1, 8/27/2008
DRAFT GROUNDWATER HYDROLOGY
– Geotechnical drilling will continue in 2008 with about 142 locations planned. These holes are the geotechnical (“GH”) holes depicted on Figure 5.1-3.
• Groundwater sampling will continue during 2008
− Based on the sampling program up to the end of 2007, 39 groundwater wells will be sampled quarterly for cations, anions and nutrients in 2008 to document seasonal variation. The details of the sampling parameters are provided in Chapter 6. At the conclusion of the 2008 field investigation, some new wells will likely be added to the program and some wells may be discontinued.
− Additional groundwater samples will be collected from the deep Westbay installation.
• Monthly groundwater level measurements will continue in 2008 at 287 locations (220 from hydrogeology and geotechnical programs, and 67 from the small pools study). Table 5.1-2 shows a record of monitoring, Figure 5.1-2 shows the well and piezometer groundwater monitoring locations for 2004, 2005, 2006, 2007 and Figure 5.1-3 shows the locations planned for 2008. A summary of proposed 2008 monitoring wells and piezometers by drainage is presented in Table 5.1-3. These piezometers and monitoring wells will be monitored until the end of the 2008 field program, at which time some new monitoring locations will be added (up to 142 from the geotechnical program and up to possibly 80 from the hydrogeology program) and some will be discontinued.
• Packer testing to estimate hydraulic conductivity will continue in 2008 as described in the 2008 Field Sampling Plan.
• No additional field work is planned for the surficial geology mapping in 2008.
• Additional seeps and surface water quality sampling results will inform the groundwater hydrology program in 2008, as described in Chapters 6 (Water Quality) and 4 (surface water hydrology).
• Groundwater quality characterization will continue as more data become available in 2008. This data will be correlated to surface water and seepage water quality as well as climate and hydrologic variations.
General Considerations
• Meteorological data will continue to be reviewed and verified that data collection meets the needs of the groundwater hydrology program.
• The groundwater hydrology program will provide information to other programs, including the operations water balance, the site-wide mass balance, the pit lake study, bench-scale attenuation testing, and mine design. The objectives and methods are described in Section 5.1.5.2 Field Work “Input to Tasks by Others” in the 2007 Study Plan.
• The conceptual geologic and groundwater hydrology model preparation described in the 2007 Sampling Plan will continue in 2008. More detailed modeling is expected to be required in mine waste-management areas and within the mine area and will simulate groundwater flow directions and surface water-groundwater interaction.
• Additional resource drilling from 2007 and 2008 will provide additional lithologic and structural information that gives the background for producing a conceptual groundwater model for the study area.
SP_2008_DFT_Ch5_August2008 (2) 5-2 Rev. 0, 8/27/2008
DRAFT GROUNDWATER HYDROLOGY
• A summary of the tasks for the hydrogeology study for 2004, 2005, 2006, 2007 and 2008 is shown in Table 5.1-4.
TABLE 5.1-3 Summary of Monitoring Wells and Piezometers by Drainage
Drainage Sub-drainage
Water Level Monitoring
(Piezometers and Wells)
Sampling Wells
South Fork Koktuli
Upstream of Frying Pan Lake 70 11
Downstream of Frying Pan Lake 70 13
North Fork Koktuli 45 8
Upper Talarik Creek 35 6
Small Pools 67 0
TOTAL 287 38
5.2 Transportation Corridor No data on groundwater hydrology are being collected in the transportation corridor in 2008.
SP_2008_DFT_Ch5_August2008 (2) 5-3 Rev. 1, 8/27/2008
DRAFT GROUNDWATER HYDROLOGY
TABLES
SP_2008_DFT_Ch5_August2008 (2) 5-4 Rev. 0, 8/27/2008
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2a Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Upstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
20042005 ● ● constantly frozen or flowing2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● Flowing--plugged with stopper in March2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● Frozen/flowing between Oct 06-Apr 072008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● Often frozen until ~ April of each year2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
GH05-61
GH05-63
GH05-60
Page 2 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2a Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Upstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
2004200520062007 ● ● ● ● ● frozen or flowing2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ● ● ● ● frozen or flowing2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ● ● ● ● plugged as of September2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ● ● ● ● plugged as of September2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ● ● ● ●
GH06-70S
GH06-70D
GH06-71A
GH06-72
GH06-74
2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ● ● ● ●
20008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 deep snow - wanded, but could not
20008 locate2004200520062007 ● deep snow - wanded, but could not
20008 ● ● ● ● ● ● ● ● ● locate2004200520062007 ● deep snow - wanded, but could not
20008 ● ● ● ● ● ● ● ● ● locate2004200520062007 ●
20008 ● ● ● ● ● ● ● ● ● ● could not locate due to deep snow2004200520062007 ●
20008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●
20008 ● ● ● ● ● ● ● ● ● ● ● ●2004
GH07-91
GH07-92D
GH07-92S
GH07-93
GH07-94
GH07-104
GH06-80
Page 3 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2a Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Upstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
200520062007 ● frozen
20008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● plugged
20008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged in August2006 ● ● ● ● ● ● ● ● ● ● ● ● Frozen for most of the year2007 ● ● ● ● ● ● ● ● ● ● ● ● Frozen for most of the year2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen for most of the year20042005 ● ● ● ● ● ● ● ● ● ● ● ● Strong sulfur smell2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● Flowing, extension in place as of July2006 ● ● ● ● ● ● ● ● ● ● ● Plugged/Frozen2007 ● ● ● ● ● ● ● ● ● ● ● ● Standpipe plugged to prevent artesian flow2008 ● ● ● ● ● ● ● ● ● ● ● ●
I-172
I-192
I-125
GH07-106
GH07-105
20042005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●
2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●Well has shallow water: winter sampling was scheduled, but samples were not obtained. 3.14 ft extension as of May
2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Standpipe plugged to prevent artesian flow2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
KP-P3S/SRK-5S
KP-P4
M-110
M-12
KP-P3D/SRK-5D
KP-P3M/SRK-5M
I-201
Page 4 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2a Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Upstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
20042005 ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
MW-5D
MW-5M
MW-5S
M-21
M-62
2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● August - new datum w/cap = 0.1 ft2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ●
P-2M
P-3
P-4AD
P-4AS
MW-05-12D
MW-05-12S
P-2D
Page 5 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2a Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Upstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
2005 ● ● ● ● ● Piezometer damaged in April 2005, casing 2006 at surface needs repair200720082004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
P-6D
P-4MID
Page 6 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2a Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Upstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●
P-05-07D
P-05-07S
P-05-08
P-6M
P-6S
2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● Standpipe plugged to prevent artesian flow2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● Standpipe plugged to prevent artesian flow2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● Standpipe plugged to prevent artesian flow2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● Often frozen2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004
P-05-09S
P-05-20D
P-05-20S
P-05-21D
P-05-21M
P-05-21S
P-05-09D
Page 7 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2a Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Upstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
2005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
P-05-29D
P-05-29D2
P-05-29M
Page 8 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2a Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Upstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
P-05-36M
P-05-36S
PQ-4
P-05-29S
P-05-36D
2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● flowing/frozen2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen or flowing
KEY:GH = Geotechnical HoleMW = Monitoring WellP = PiezometerWL = Wetlands Location
NOTES:1. Work after April 2008 is planned, but not yet completed.
SRK-1A
PQ-8
PQ-9
Page 9 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of August2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of August2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ●20082004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of August2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ●20082004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ●2008 Dry2004 ●
GH04-03
GH04-05
GH04-04
GH04-10
GH04-11
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of August2006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● Caved as of August 06 - remove from list?2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument at angle2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● almost always flowing/frozen2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● Monument damaged as of June2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●
GH04-14
GH04-16
GH04-17
GH04-12A
GH04-18
GH04-19
GH04-20
GH04-22
Page 10 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of August2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ●2008
GH04-28
GH04-29A
Page 11 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ●20082004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of August2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ●20082004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●
GH04-30
GH04-32
GH04-31
GH04-33
GH04-35
2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of September2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of August2006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ●20082004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of August2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● Dry year round2007 ● ● ● ● ● ● ●20082004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of July2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● dry/frozen2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● typically dry2007 ● ● ● ● ● ● ● ● ● ● ● ●
GH04-44
GH04-39
GH04-41
GH04-42
GH04-43
GH04-37
GH04-38
GH04-45A
Page 12 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ●200820042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● Standing water2008
GH05-52
GH05-51
Page 13 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
2004200520062007 ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ●2005
MW-1D
MW-1M
GH06-77
GH06-76
GH06-75
2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
2004 ● Well was scheduled to be sampled, but excessive silt prevents sampling
2005 ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
2004 ● Well was scheduled to be sampled, but excessive drawdown (due to silt) prevents sampling
2005 ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
2004 Well was scheduled to be sampled, but excessive silt prevents sampling
2005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● Dry/frozen all 2007 dates2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
MW-1S
MW-2D
MW-05-2M
MW-2S
MW-05-2SR
MW-3D
MW-11D
Page 14 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
MW-11M
MW-11S
Page 15 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
20042005 ● ● ● ● ●
2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● Well has shallow water: winter sampling was scheduled, but sample was not obtained
2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
MW-05-11SS2
MW-05-13D
MW-05-13S
MW-05-14D
MW-05-14S2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●
P-05-10S
P-05-11D
P-05-11M
P-05-11S
P-05-12
P-05-13
P-05-10D
Page 16 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen/dry all 2007
P-05-14D
P-05-14S
P-05-15D
Page 17 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ●2004
P-05-16S
P-05-16SS
P-05-15S
P-05-16D
P-05-16M
20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●
P-05-22D
P-05-23
P-05-24D
P-05-17D
P-05-17S
P-05-19D
P-05-19S
P-05-18
Page 18 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
P-05-25
P-05-24S
Page 19 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2b Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Downstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water Levels
20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ●2004
P-05-26D
P-05-26M
P-05-26S
P-05-27D
P-05-27M
20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ●
KEY:GH = Geotechnical HoleMW = Monitoring WellP = PiezometerWL = Wetlands Location
NOTES:1. Work after April 2008 is planned, but not yet completed.
P-05-27S
Page 20 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ●2008 Caved in2004 ●2005 ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● frozen/flowing2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of August2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
Table 5.1-2c Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers in North Fork Koktuli Watershed
Monitoring Site Year1
GH04-01
Sampling Water LevelsPeriod of Record by Task Notes
GH05-57
GH04-23
GH04-25
GH04-08
2004200520062007 ● ● ● ● ● wrench in monument2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ● ● ● ● no monument2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● Could not located due to deep snow; wanded2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●
GH06-69
GH06-68
GH06-67
GH06-66
GH07-81
GH07-82D
GH07-82S
GH07-83D
Page 21 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Table 5.1-2c Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers in North Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task Notes
2008 ● ● ● ● ● ● ● ● ● ● ● ● frozen2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ● frozen2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ● frozen2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ● frozen
GH07-87D
GH07-83S
GH07-84
GH07-85
GH07-86
2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● Deep snow; wanded but couldn’t locate2004200520062007 ●2008 ● ● ● ● ● ● ● ● Deep snow; wanded but couldn’t locate20042005200620072008 ● ● ● ● ● ● ● ● Deep snow; wanded but couldn’t locate20042005200620072008 ● ● ● ● ● ● ● ● Deep snow; wanded but couldn’t locate2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●
GH07-87S
GH07-88
GH07-89D
GH07-96D
GH07-89S
GH07-90D
GH07-90S
GH07-95
Page 22 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Table 5.1-2c Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers in North Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task Notes
2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● Deep snow; wanded but couldn’t locate2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● Deep snow; wanded but couldn’t locate
GH07-96S
GH07-97D
GH07-97S
GH07-98D
GH07-98S
p ;20042005200620072008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ● dry well2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
MW-6D
GH07-103S
GH07-101
GH07-102D
GH07-102S
GH07-103D
GH07-99
GH07-100
Page 23 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Table 5.1-2c Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers in North Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task Notes
2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2004 ● ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
MW-7D
MW-7S
MW-8D
MW-8M
MW-8S
2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
Page 24 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Table 5.1-2c Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers in North Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task Notes
2004 ● ● ●
2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Well has shallow water: winter sampling was scheduled, but samples were not obtained
2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Standpipe plugged to prevent artesian flow2004 ● ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
KEY:GH = Geotechnical HoleMW = Monitoring WellP = PiezometerWL = Wetlands Location
NOTES:1. Work after April 2008 is planned, but not yet completed.
MW-10
MW-9D
Page 25 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● Monument damaged as of August2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005200620072008 no piezo2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008
GH04-02
GH06-78
GH05-64
KP-P1/SRK-2
GH04-13
Notes
Table 5.1-2d Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers in Upper Talarik Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
2004 Well was scheduled to be sampled, but lack of water precluded sampling
2005 ● ● ● ● ● ● ● ● ● ● ● ● No monument2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
P-05-31S
MW-4 (Stand 1)
P-05-28D
P-05-28S
P-05-30D
P-05-30S
P-05-31D
Page 26 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2d Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers in Upper Talarik Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ● Well caved in December2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
P-05-32D
P-05-35D
P-05-33D
P-05-34D
Page 27 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2d Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers in Upper Talarik Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
200420052006 ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● Standpipe plugged to prevent artesian flow200420052006 ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
P-06-37S
P-06-37M
P-06-37D
P-06-38M
P-06-38D
200420052006 ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Standpipe plugged to prevent artesian flow200420052006 ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Plugged, casing flush with ground200420052006 ● ● ● ● ● typically frozen2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● typically frozen2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ●P-06-41S
P-06-41M
P-06-41D
P-06-40S
P-06-40M
P-06-40D
P-06-39S
P-06-39D
Page 28 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Notes
Table 5.1-2d Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers in Upper Talarik Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ● dry2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ● dry2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006
P-07-46D
P-07-47D
P-07-44D
P-07-44S
P-07-45D
2007 ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Monument needs to be fixed2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ●
KEY:GH = Geotechnical HoleMW = Monitoring WellP = PiezometerWL = Wetlands Location
NOTES:1. Work after April 2008 is planned, but not yet completed.
SRK-3
SRK-2A
Page 29 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D200420052006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● Stake down, couldn't locate after Dec2008 ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● tends to be in deep water2008 ● ● ● ● ● ● ● ● ● making it inaccessible.200420052006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● Staff gage often not visable (snow)2008 ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ●
Period of Record by Task Notes
Table 5.1-2ePebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaPiezometers Installed for Wetlands Study
Monitoring Site Year1
Sampling Water Levels
WL-P01S
WL-S01D
WL-P01D
WL-S01G
WL-S01S
2008 ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● often dry2008 ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● often frozen2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● typically frozen2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● Stake down, could not locate
WL-P02S
WL-S02D
WL-S02G
WL-S02S
WL-P03D
WL-P03S
WL-P02D
Page 30 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2ePebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaPiezometers Installed for Wetlands Study
Monitoring Site Year1
Sampling Water Levels
200420052006 ● ● ● ● ● ● ● tilted @ 30 degree angle2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ●
WL-S03D
WL-S03G
Page 31 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D20042005 ● ● ● ● ● ● ● ● Monument noted as damaged in August2006 ● ● ● ● ● ● ● ● ● ● ● Jacked in July2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● Last measurement notes 'dry/caved'20082004 ●2005 ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●2005 ● ● ● ● ● ● ● ● ● ● ● ● Monument Damaged in July2006 ● ● ● ● ● ● ● ● ● ● ● ●
GH04-06
GH04-26
GH04-27
GH04-46
GH04-47
Notes
Table 5.1-2a Pebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaWells and Piezometers Upstream of Frying Pan Lake in South Fork Koktuli Watershed
Monitoring Site Year1
Sampling Water LevelsPeriod of Record by Task
2007 ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004 ●
2005 ● ● ● ● ● ● ● ● ● ● ● ● Frost Jacking damage in May, 0.95 ft PVC cut off in July
2006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ●20042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● last measurement in July200820042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● last measurement in July200820042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● last measurement in July200820042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●20042005 ● ●2006 ● ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
GH05-53
GH05-54
GH05-55
GH05-56
GH04-48
GH05-58
GH05-59
Page 1 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2ePebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaPiezometers Installed for Wetlands Study
Monitoring Site Year1
Sampling Water Levels
200420052006 ● ● ● ● ● ● ● ● ● tilted @ 30 degrees2007 ● ● ● ● ● ● ● ● ● ● ● ● needs to be fixed2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● Stake down, could not locate200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● Stake down, could not locate200420052006 ● ● ● ● Well stand down as of June20072008200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ●
WL-S03S
WL-S04G
WL-S04D
WL-P04S
WL-P04D
2008 ● ● ● ● ● ● ● ●200420052006 ● ● ● ● Well stand down as of June20072008200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● often frozen/dry2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ● often dry2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● in pond200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● Stake down, could not locate200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ● often dry2008 ● ● ● ● ● ● ● ● ● ● ● ●
WL-P06S
WL-P06D
WL-S05S
WL-S05D
WL-P05S
WL-P05D
WL-S04S
Page 32 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2ePebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaPiezometers Installed for Wetlands Study
Monitoring Site Year1
Sampling Water Levels
200420052006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● out of water, jacked too tall to 2008 ● ● ● ● ● ● ● ● measure as of June 06200420052006 Gage out of water or not visable20072008200420052006 ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● Jacked out of water as of June2008200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ● typically dry2007 ● ● ● ● ● ● ● ● ● ● ● ●
WL-S06D
WL-S06G
WL-S06S
WL-P07D
WL-P07S
2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ●2007 ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ●2007 ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ● dry/frozen2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ●2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
WL-S07G
WL-S07S
WL-P08D
WL-P08S
WL-S07D
WL-P09D
WL-P09S
Page 33 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2ePebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaPiezometers Installed for Wetlands Study
Monitoring Site Year1
Sampling Water Levels
200420052006 ● ● ● ● ● ● ● ● ● ● ● dry/frozen2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ● dry/frozen2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ● often frozen/dry2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●200420052006 ● ● ● ● ● ● ● ● ● ● ● often frozen/dry2007 ● ● ● ● ● ● ● ● ● ● ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ●
WL-P10D
WL-P10S
WL-P11S
WL-P15D
WL-P11D
2008 ● ● ● ● ● ● ● ● Wanded but couldn't locate in snow2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● Gage not visable2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● Wanded but couldn't locate in snow2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● Wanded but couldn't locate in snow2004200520062007 ●2008 ● ● ● ● ● ● ● ● Could not locate2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● Wanded but couldn't locate in snow2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●
WL-P16D
WL-P16G
WL-P16S
WL-P17D
WL-P15G
WL-P15S
WL-P17S
Page 34 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2ePebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaPiezometers Installed for Wetlands Study
Monitoring Site Year1
Sampling Water Levels
2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ●2008 ● ● ● ● ● ● ● ● Gage not visable2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ●
WL-P19D
WL-P19S
WL-P18D
WL-P18G
WL-P18S
2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● Gage not visable2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● Gage not visable2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● Wanded but couldn't locate in snow
WL-P20D
WL-P20G
WL-P22D
WL-P20S
WL-P21D
WL-P21G
WL-P21S
Page 35 of 36
Month J F M A M J J A S O N D J F M A M J J A S O N D
Period of Record by Task Notes
Table 5.1-2ePebble Project
Period-of-Record Index, Groundwater Monitoring Locations, Mine Study AreaPiezometers Installed for Wetlands Study
Monitoring Site Year1
Sampling Water Levels
2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● Wanded but couldn't locate in snow2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● Wanded but couldn't locate in snow2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● Wanded but couldn't locate in snow2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ●
WL-P23D
WL-P23S
WL-P24D
WL-P24S
WL-P22S
2008 ● ● ● ● ● ● ● ● ● ● ● ●2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● Wanded but couldn't locate in snow2004200520062007 ● ●2008 ● ● ● ● ● ● ● ● ● ● ● ● Frozen
KEY:GH = Geotechnical HoleMW = Monitoring WellP = PiezometerWL = Wetlands Location
NOTES:1. Work after April 2008 is planned, but not yet completed.
WL-P26S
WL-P26D
WL-P25D
WL-P25S
Page 36 of 36
TABLE 5.1-4Pebble Project Environmental Studies
Study Summary for Groundwater Hydrology, Mine Study Area, 2004-2008Consultant: Water Management Consultants
2004 2005 2006 2007 2008 Discipline Data Collected or Tasks Data Collected or Tasks Data Collected or Tasks Data Collected or Tasks Tasks to be CompletedGroundwater Hydrology Field Work Field Work Field Work Field Work Field WorkMine Studies Area Input to Tasks by Others Input to Tasks by Others Input to Tasks by Others Input to Tasks by Others Input to Tasks by Others
Meetings Data Review and Analysis Data Review and Analysis Data Review and Analysis Data Review and AnalysisGroundwater Recharge Analysis Groundwater Recharge Analysis Site Water Balance Site Water Balance
Pit Dewatering and Impacts Pit Dewatering and Impacts Site-wide Groundwater Model Site-wide Groundwater ModelTailings Area HydroImpacts
geology and Tailings Area HImpacts
ydrogeology and Pit and UndGroundwat
erground er Model
Pit and Underground Groundwater Model
Groundwater SupplyAssessment
Meetings Tailings ArModel
ea Groundwater Tailings Area Groundwater Model
Meetings Reporting Class V InjAssessmen
ection Wells t
Class V Injection Wells Assessment
Groundwater Quality Groundwater QualityReporting Meetings Meetings
Reporting Reporting
DRAFT GROUNDWATER HYDROLOGY
SP_2008_DFT_Ch5_August2008 (2) 5-5 Rev. 1, 8/27/2008
FIGURES
1,300,000
1,300,000
1,325,000
1,325,000
1,350,000
1,350,000
1,375,000
1,375,000
1,400,000
1,400,000
1,425,000
1,425,000
1,450,000
1,450,000
1,475,000
1,475,000
1,500,000
1,500,000
2,02
5,00
02,
050,
000
2,07
5,00
02,
100,
000
2,12
5,00
02,
150,
000
2,17
5,00
02,
200,
000
2,22
5,00
0
File:\\Manu\projects\Pebble\scope schedule & budget\2008\Study Plan\Figure 5.1-1 Study Area.mxd
Legend
Canada
ARCTIC OCEAN
PebbleProject Area
GU LF OF ALASKA
Russia
BERING SEA
0 15,000 30,000 45,000 60,000Feet
Alaska State Plane Zone 5 (units feet)1983 North American Datum
1:371,390Scale
Figure 5.1-1
2008 Study PlanGroundwater Studies
Mine Study Area
Project No: 7126
Version: 1
Date: May 27, 2008
Author: WMC-LC
0 3,000 6,000 9,000 12,000Meters
South Fork Koktuli River
Upper Talarik Creek
Frying Pan Lake
North Fork Koktuli River General Deposit Location
General Deposit Location
Lakes
Rivers
50-ft Contour Interval
Study Area
Iliamna Lake
South Fork Koktuli River
North Fork Koktuli River
Upper TalarikC
reek
WL-P26S
WL-P26D
WL-P25S
WL-P25DWL-P24S
WL-P24D
WL-P23S
WL-P23DWL-P22S
WL-P22D
WL-P21S WL-P21GWL-P21D
WL-P20SWL-P20G
WL-P20DWL-P19S
WL-P19D
WL-P18S
WL-P18DWL-P17S WL-P17D
WL-P16S
WL-P16D
WL-P15SWL-P15G
WL-P15D
WL-S06D
WL-S06G
WL-S05D
WL-S05S
WL-S03D WL-S04D
WL-S02S
WL-S01D
WL-S01SWL-P03S
WL-P01S
WL-P01D
WL-P02D
WL-P04S
WL-P04D
WL-P05DWL-P06S
WL-P06D
WL-P08DWL-P09D
WL-S07G
WL-P10DWL-P11S
WL-P11D
P08-57
P08-56P08-55
P08-54
P07-53
P07-52
P07-51
P07-50
P07-49
P07-48
P07-47
P07-46
P07-45
P07-44
P07-43
P07-42
GH07-106GH07-105 GH07-104
GH07-103
GH07-102
GH07-101
GH07-100
GH07-099
GH07-098
GH07-097
GH07-096
GH07-095
GH07-094
GH07-093GH07-092
GH07-091
GH07-090
GH07-089
GH07-088
GH07-087
GH07-086
GH07-085
GH07-084
GH07-083
GH07-082
GH07-081
SRK-7
SRK-6
P-06-41
P-06-40
P-06-39
P-06-38
P-06-37
SRK-3
SRK-1
PW-8
PW-7
PW-6
PW-5
PW-4
PW-3
PW-1APQ-9
PQ-8PQ-4
P-6
P-4
P-3
P-2
P-1
P-05-36
P-05-35
P-05-34
P-05-33
P-05-32
P-05-31
P-05-30
P-05-29P-05-28
P-05-27
P-05-25
P-05-24
P-05-23
P-05-22
P-05-21 P-05-20
P-05-19P-05-18
P-05-17
P-05-16
P-05-15
P-05-14P-05-13
P-05-12
P-05-11
P-05-10
P-05-09
P-05-08
P-05-07
MW-9
MW-8
MW-7
MW-6
MW-5
MW-4
MW-3
MW-2
MW-11
MW-10
MW-1
MW-05-02
MW-05-14
MW-05-13
MW-05-12
M-62
M-21
M-12
M-110
KP-P4
KPP-2/SRK-4
KPP-1/SRK-2
KP-04
I-201I-192
I-172
I-125
GH06-80GH06-79
GH06-78
GH06-77GH06-76
GH06-75
GH06-74GH06-73GH06-72
GH06-71A
GH06-71
GH06-70
GH06-69GH06-68
GH06-67GH06-66
GH06-65
GH05-65
GH05-64
GH05-63GH05-62GH05-61GH05-60
GH05-59
GH05-58
GH05-57
GH05-56
GH05-55
GH05-54
GH05-53
GH05-52
GH05-51
GH04-48 GH04-47GH04-46
GH04-45A
GH04-44GH04-43
GH04-42
GH04-41
GH04-40A
GH04-39
GH04-38GH04-37 GH04-36
GH04-35
GH04-34
GH04-33
GH04-32
GH04-31
GH04-30
GH04-28
GH04-27
GH04-26
GH04-25
GH04-24
GH04-23
GH04-22
GH04-21 GH04-20
GH04-19
GH04-18
GH04-17GH04-16
GH04-15
GH04-14
GH04-13
GH04-12A
GH04-11
GH04-10
GH04-09
GH04-08
GH04-07
GH04-06
GH04-05GH04-04
GH04-03
GH04-02GH04-01
1,350,000
1,350,000
1,360,000
1,360,000
1,370,000
1,370,000
1,380,000
1,380,000
1,390,000
1,390,000
1,400,000
1,400,000
1,410,000
1,410,000
1,420,000
1,420,000
1,430,000
1,430,000
1,440,000
1,440,0002,11
0,00
02,
120,
000
2,13
0,00
02,
140,
000
2,15
0,00
02,
160,
000
2,17
0,00
02,
180,
000
File: \\Manu\projects\Pebble\scope schedule & budget\2008\study plan\Figure 5.1-2 Existing Well Locations.mxd
Legend
Canada
ARCTIC OCEAN
PebbleProject Area
GULF OF A LASKA
Russia
BERING SEA
0 5,000 10,000 15,000 20,000Feet
Alaska State Plane Zone 5 (units feet)1983 North American Datum
Date: May 27, 2008
Author: WMC-LC
1:94,231Scale
Project No: 7126
Version: 1
DRAFT
Monitoring Well (MW)Piezometer (P, GH, I, M)Pumping Well (PW)Wetland Piezometer (WL)General Deposit LocationLakesRivers50-ft Contour Interval
WatershedNorth Fork Koktuli RiverSouth Fork Koktuli RiverUpper Talarik Creek
Figure 5.1-2Existing Well and Piezometer
Locations
2008 Study PlanGroundwater Studies
Mine Study Area
0 1,000 2,000 3,000 4,000Meters
South Fork Koktuli River
North Fork Koktuli River
Upper TalarikCreek
HH08-ZHH08-YHH08-X
HH08-W
HH08-V
HH08-U
HH08-THH08-S
HH08-R
HH08-QHH08-P
HH08-O
HH08-N
08-M
HH08-L
HH08-K
HH08-J
HH08-I
HH08-H
HH08-G
HH08-F
HH08-E
HH08-D
HH08-C
HH08-B
HH08-A
HH08-AQ
HH08-AP
HH08-AO
HH08-AM
HH08-AI
HH08-AH
HH08-AG
HH08-AF
HH08-AE
HH08-AD
HH08-ANHH08-AL
HH08-AK HH08-AJ
HH08-AC
HH08-AB
HH08-AA
GH08-EW
GH08-EUGH08-ET
GH08-ES
GH08-ER
GH08-EQGH08-EP
GH08-EO
GH08-EN
GH08-EM
GH08-EL
GH08-EK
GH08-EJGH08-EI
GH08-EH
GH08-EG
GH08-EF
GH08-EE
GH08-EDGH08-EC
GH08-EB
GH08-EA
GH08-EV
GH08-Z
GH08-Y
GH08-X
GH08-W
GH08-VGH08-U
GH08-T
GH08-S
GH08-R
GH08-QGH08-P
GH08-O
GH08-N
GH08-M GH08-L
GH08-K
GH08-J
GH08-IGH08-H
GH08-G
GH08-F
GH08-E
GH08-DGH08-C
GH08-B
GH08-A
GH08-DO
GH08-DN
GH08-DM
GH08-DL
GH08-DK
GH08-DJGH08-DI
GH08-DH
GH08-DG
GH08-DF GH08-DE GH08-DC
GH08-DB
GH08-DA
GH08-CZ
GH08-CY
GH08-CX
GH08-CW
GH08-CV
GH08-CU
GH08-CT
GH08-CS
GH08-CRGH08-CQ
GH08-CP
GH08-CO
GH08-CN
GH08-CM
GH08-CLGH08-CK
GH08-CJGH08-CI
GH08-CHGH08-CG
GH08-CF
GH08-CE
GH08-CC
GH08-CB
GH08-CA
GH08-BZ
GH08-BY
GH08-BX
GH08-BWGH08-BV
GH08-BU
GH08-BT
GH08-BSGH08-BR
GH08-BQ
GH08-BP GH08-BO
GH08-BN
GH08-BM
GH08-BLGH08-BK
GH08-BJ
GH08-BI
GH08-BH
GH08-BG
GH08-BF
GH08-BE
GH08-BD
GH08-BC
GH08-BB
GH08-BA
GH08-AZ
GH08-AY
GH08-AX
GH08-AW
GH08-AV
GH08-AU
GH08-AT
GH08-ASGH08-AR
GH08-AQ
GH08-AP
GH08-AN
GH08-AM
GH08-AL
GH08-AK
GH08-AJ
GH08-AI
GH08-AH
GH08-AG
GH08-AF
GH08-AE
GH08-AD
GH08-AC
GH08-AB
GH08-AA
GH08-DD
GH08-CD
GH08-AO
1,360,000
1,360,000
1,370,000
1,370,000
1,380,000
1,380,000
1,390,000
1,390,000
1,400,000
1,400,000
1,410,000
1,410,000
1,420,000
1,420,000
1,430,000
1,430,000
1,440,000
1,440,000
1,450,000
1,450,000
2,12
0,00
02,
130,
000
2,14
0,00
02,
150,
000
2,16
0,00
02,
170,
000
2,18
0,00
02,
190,
000
2,20
0,00
0
File: \\Manu\projects\Pebble\scope schedule & budget\2008\study plan\Figure 5.1-3 Proposed Well Locations.mxd
Legend
Canada
ARCTIC OCEAN
PebbleProject Area
GULF OF A LASKA
Russia
BERING SEA
0 5,750 11,500 17,250 23,000Feet
Alaska State Plane Zone 5 (units feet)1983 North American Datum
Date: June 23, 2008
Author: WMC-LC
1:101,273Scale
Project No: 7126
Version: 2
DRAFT
HH08 - Hydrogeology HoleGH08 - Geotechnical HoleRiversGeneral Deposit Location
WatershedNorth Fork Koktuli RiverSouth Fork Koktuli RiverUpper Talarik CreekLakes50-ft Contour Interval
Figure 5.1-3Proposed Well and Piezometer
Locations
2008 Study PlanGroundwater Studies
Mine Study Area
0 1,000 2,000 3,000 4,000Meters