Freedom of Information Act Request – U.S. Army Corps of Engineers

[box]FOIAUSACE2013B_pd_001
PDF[/box]May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Cover Page

[box]FOIAUSACE2013B_pd_002
PDF[/box]May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Table of Contents

[box]FOIAUSACE2013B_pd_003
PDF[/box]May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, List of Tables

[box]FOIAUSACE2013B_pd_004
PDF[/box]May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, List of Figures

[box]FOIAUSACE2013B_pd_005
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, List of Acronyms/Abbreviations

[box]FOIAUSACE2013B_pd_006
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Glossary

[box]FOIAUSACE2013B_pd_007
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Executive Summary

[box]FOIAUSACE2013B_pd_008
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Sections 1.0 -1.7

[box]FOIAUSACE2013B_pd_009
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, section 2.0- 2.5

[box]FOIAUSACE2013B_pd_010
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Sections 3.0-3.3.3.3.6

[box]FOIAUSACE2013B_pd_011
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Sections 4.0-4.3.14

[box]FOIAUSACE2013B_pd_012
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Sections 5.0-5.3.14

[box]FOIAUSACE2013B_pd_013
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Sections 6.0-6.3-13

[box]FOIAUSACE2013B_pd_014
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Sections 7.0-7.4

[box]FOIAUSACE2013B_pd_015
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, List of Preparers

[box]FOIAUSACE2013B_pd_016
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, List of References

[box]FOIAUSACE2013B_pd_017
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Index

[box]FOIAUSACE2013B_pd_018
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Appendix A, Thematic Reponses to DEIS Comments

[box]FOIAUSACE2013B_pd_019
PDF[/box] May 24, 2013 NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Draft Work in Progress 2.0, Appendix B, Underground Mining, Alternative Assessment for NorthMet Mining Project and Land Exchange Environmental Impact Statement

[box]FOIAUSACE2013B_pd_020
PDF[/box] November 2013, NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Volume I (of II), Prepared by the Minnesota Department of Natural Resources, Untied States Army Corp of Engineers and the United States Forest Service

[box]FOIAUSACE2013B_pd_021
PDF[/box] November 2013, NorthMet Mining Project and Land Exchange Report. Preliminary Supplemental Draft and Environmental Impact Statement (PSDEIS), Volume II (of II), Prepared by the Minnesota Department of Natural Resources, Untied States Army Corp of Engineers and the United States Forest Service

[box]FOIAUSACE2013B_pd_022
PDF[/box] May 2, 2012, GoldSim Model Evaluation Work Plan NorthMet Project, Minnesota, ERM Final for NorthMet Project Supplemental Draft Environmental Impact Statement.

[box]FOIAUSACE2013B_pd_023
PDF[/box] May 3, 2013 Email correspondence from Fred Marinelli of Interralogic Inc about attachments documents pertaining to the Task 1 QA (model inputs).

[box]FOIAUSACE2013B_pd_024
PDF[/box] February 2, 2012 Correspondence from Fed Marinelli to Dave Blaha about Task 1 (input) evaluation of the Mine Site GoldSim model. Found four instances where values didn’t match up.

[box]FOIAUSACE2013B_pd_025
PDF[/box]Document of Task 1 (input) Evaluation for Mine Site GoldSim Model

[box]FOIAUSACE2013B_pd_026
PDF[/box]Document of Task 1 (input) Evaluation for Mine Site GoldSim Model

[box]FOIAUSACE2013B_pd_027
PDF[/box] February 25, 2013 correspondence from Fred Marinelli, Houston Kempton, John Adams and David Blaha about NorthMet Mining Project GoldSim Water Quality Model – Phase 3 Quality Assurance

[box]FOIAUSACE2013B_pd_028
PDF[/box] May 8, 2012, Technical Memorandum from Interralogic Inc to David Blaha (ERM) about Plant Site GoldSim Model (Base v01) Task 1 QA Evaluation

[box]FOIAUSACE2013B_pd_029
PDF[/box] April 5, 2013 Correspondence from United States Environmental Protection Agency to Bill Johnson of the Minnesota Department of Natural Resources, Tom Hale of the United States Forest Service and Thomas Hingsberger of the United States Army Corps of Engineers about GoldSim water model and concerns over adequate mitigation of impacts to wetlands.

[box]FOIAUSACE2013B_pd_030
PDF[/box] January 25, 2012 Email Correspondence from Stuart Arkley of the DNR pertaining to the most recent draft of the QA/QC that was prepared by ERM at the request of the Co-lead agencies.

[box]FOIAUSACE2013B_pd_031
PDF[/box] June 12, 2013 Email Correspondences between Bill Johnson (DNR), ERM and all co-lead agencies pertaining to FEIS and on record that the GoldSim model adequately documented by ERM for use in SDEIS

[box]FOIAUSACE2013B_pd_032
PDF[/box]Comments Document from United States Environmental Protection Agency

[box]FOIAUSACE2013B_pd_033
PDF[/box] Document, ERM response to Comments from United States Environmental Protection Agency

[box]FOIAUSACE2013B_pd_034
PDF[/box]Comments Document from United States Environmental Protection Agency

[box]FOIAUSACE2013B_pd_035
PDF[/box] July 18, 2012 Technical Memorandum from Tina Pint of Barr summarizing the model assumptions and engineering controls associated with the AWMP that are contained with the Mine Site and Plant Site GoldSim models.

[box]FOIAUSACE2013B_pd_036
PDF[/box]July 20, 2012 Email Correspondence from Michael Liljegren of MN DNR Waters pertaining to the agency responses to comments on the Summary of Calibrations and Plant Sites Corroboration Document version one.

[box]FOIAUSACE2013B_pd_037
PDF[/box] July 24, 2012 Email correspondence from Lisa A. Ungar at Barr about version two of the Summary of Calibrations and Plant Site Corroboration.

[box]FOIAUSACE2013B_pd_038
PDF[/box] August 14, 2012 Email correspondence from Michael Liljegen (DNR) review of Summary of Calibration and Corroboration Memo V2.

[box]FOIAUSACE2013B_pd_039
PDF[/box] November 29, 2011 Email correspondence from Fred Marinelli about concerns that the proposed concentration cap and scaling factor inputs might be overly conservative from a probabilistic modeling standpoint.

[box]FOIAUSACE2013B_pd_040
PDF[/box] September 4, 2012 Email correspondence from David Blaha about Cat 1 stockpile “flush” and large and small fragment oxidizing.

[box]FOIAUSACE2013B_pd_041
PDF[/box] September 4, 2012 Email correspondence from Jim Scott about Cat 1 stockpile “flush” and questions about percentages.

[box]FOIAUSACE2013B_pd_042
PDF[/box] July 18, 2012 Email correspondence from Fred Marinelli about Cat 1 stockpile pH about updated package posted on Barr website and model files submitted 2 weeks ago did not have the pH of the Category 1 Waste Rock Stockpile modeled correctly.

[box]FOIAUSACE2013B_pd_043
PDF[/box] March 16, 2013 Document Co-lead Agencies Comment/Response Review Meeting and outcomes.

[box]FOIAUSACE2013B_pd_044
PDF[/box] April 24, 2012 Email correspondence from David Blaha about co-variance question pertaining to the waste rock pH.

[box]FOIAUSACE2013B_pd_045
PDF[/box] Chart of Coarse Flotation Trailings, S04 release rate distribution

[box]FOIAUSACE2013B_pd_046
PDF[/box] January 4 2012 Email correspondence from Stuart Arkley (DNR) about names involved in co-lead QA/QC development and plan implementation.

[box]FOIAUSACE2013B_pd_047
PDF[/box] July 2, 2012, Flow Charter of GoldSim Model, NorthMet Mine Site Water Quality Model

[box]FOIAUSACE2013B_pd_048
PDF[/box] July 27, 2012 Email correspondence from Fred Marinelli about Mine Site Control Volumes for Mine Site flow chart.

[box]FOIAUSACE2013B_pd_049
PDF[/box] July 27, 2012 Email correspondence from Fred Marinelli about Plant Site Control Volumes and the issue of pond water balance is not consider but percolation from pond into tailings is consider.

[box]FOIAUSACE2013B_pd_050
PDF[/box] August 6, 2012 Email correspondence from Fred Marinelli about defining Control Volumes.

[box]FOIAUSACE2013B_pd_051
PDF[/box] August 7, 2012 Email correspondence from Peter Hinck about flow charts for Northmet Mine Site Control Volumes.

[box]FOIAUSACE2013B_pd_052
PDF[/box] August 8, 2012 Email correspondence from Peter Hinck about flow charts for Northmet Mine Site Control Volumes and neglecting to add calculation points on the upstream and downstream end of the non-West Pit surficial flowpaths.

[box]FOIAUSACE2013B_pd_053
PDF[/box]August 2012 Charts of AWMP Ver 2 Model QA/QC

[box]FOIAUSACE2013B_pd_054
PDF[/box] April 12, 2012 Email correspondence from David Blaha about Plant Site Work Plan and Data Package review.

[box]FOIAUSACE2013B_pd_055
PDF[/box] January 5, 2012 Email correspondence from Stuart Arkley about addressing the DNR’s comments on the 12/23 draft of the QA/QA document. Comments stem from lack of clarity in the first draft.

[box]FOIAUSACE2013B_pd_056
PDF[/box] March 13, 2012 Email correspondence from Al Trippel about NorthMet ERM feedback on Water QAP EPA comments.

[box]FOIAUSACE2013B_pd_057
PDF[/box] January 17, 2012 Email correspondence from Fred Marinelli about feedback regarding the EPA checklist used to review Barr QAPP.

[box]FOIAUSACE2013B_pd_058
PDF[/box] March 3, 2013 Document EPA Question/Comments on GoldSim Model Review.

[box]FOIAUSACE2013B_pd_059
PDF[/box] September 8, 2011 Document EPA Information Request

[box]FOIAUSACE2013B_pd_060
PDF[/box]April 5, 2013 Correspondence from United States Environmental Protection Agency to Bill Johnson of the Minnesota Department of Natural Resources, Tom Hale of the United States Forest Service and Thomas Hingsberger of the United States Army Corps of Engineers about GoldSim water model and concerns over adequate mitigation of impacts to wetlands. Includes comments and responses.

[box]FOIAUSACE2013B_pd_061
PDF[/box] October 30, 2012 Email Correspondence from Bill Johnson of the DNR about next round of the co-lead agencies’ QA/QC procedure conducted by ERM on the GoldSmim model developed for PolyMet’s NorthMet Project for both the Plant and Mine Site.

[box]FOIAUSACE2013B_pd_062
PDF[/box]Chart showing Fine Floatation Tailings (-200) SO4 release rate distribution

[box]FOIAUSACE2013B_pd_063
PDF[/box]Hand drawn chart for stockpile models

[box]FOIAUSACE2013B_pd_064
PDF[/box] August 29, 2012 Email correspondence from Fred Marinelli about concern over technical justification for using a diffusion coefficient pertaining to the bentonite-amended layer and an O2 consumption rate for oxygenated materials in the non-amended NM tailings below the benotonite layer.

[box]FOIAUSACE2013B_pd_065
PDF[/box]Document Sulfate Generation – Cell 2W Fine, equations correlating to tables

[box]FOIAUSACE2013B_pd_066
PDF[/box] August 16, 2012 Email Correspondence from Fred Marinelli about a suggestion to eliminate lateral flow issues associated with long-term closures.

[box]FOIAUSACE2013B_pd_067
PDF[/box] August 16, 2012 Email Correspondence from Tina Pint about Fred Marinelli’s suggestion to eliminate lateral flow issues associated with long-term closures.

[box]FOIAUSACE2013B_pd_068
PDF[/box] August 15, 2012 Email Correspondence from Fred Marinelli about meeting to discuss FTB groundwater modeling.

[box]FOIAUSACE2013B_pd_069
PDF[/box] October 9, 2012 Email Correspondence from Fred Marinelli about materials used in FTB related to the construction of new dams and embankments.

[box]FOIAUSACE2013B_pd_070
PDF[/box] October 9, 2012 Email Correspondence from Fred Marinelli about materials used in FTB for the North Damn and LTC coarse tailings for the Cell 2W embankment.

[box]FOIAUSACE2013B_pd_071
PDF[/box] October 11, 2012 Email Correspondence from Fred Marinelli about materials used in FTB and completing table.

[box]FOIAUSACE2013B_pd_072
PDF[/box] October 11, 2012 Email Correspondence from Fred Marinelli about materials used in FTB and completing table.

[box]FOIAUSACE2013B_pd_073
PDF[/box] July 27, 2012 Email Correspondence from Fred Marinelli about seepage flow rate and sulfate concentration at the north toe of the FTB.

[box]FOIAUSACE2013B_pd_074
PDF[/box] August 31, 2012 Email Correspondence from Fred Marinelli about Mathcad worksheet computes sulfate concentration in seepage from Cell 2W fines and GoldSim output of sulfate concentration for the 2W fine subera.

[box]FOIAUSACE2013B_pd_075
PDF[/box] Chart Plant Site Base Model Annual Infiltration in the North Beach

[box]FOIAUSACE2013B_pd_076
PDF[/box]July 18, 2012 email correspondence from Tina Pint of Barr about the AWMP assumptions/model inputs that were included in the GoldSim models that were provided to the co-lead agencies for July 5, 2012 review.

[box]FOIAUSACE2013B_pd_077
PDF[/box] May 2, 2012 Report, GoldSim Model Evaluation Work Plan NorthMet Project, Minnesota, ERM Final

[box]FOIAUSACE2013B_pd_078
PDF[/box] January 12, 2011 email correspondence from Bill Johnson of the DNR about recommendations for adding GoldSim qualified individuals to the team.

[box]FOIAUSACE2013B_pd_079
PDF[/box] February 4, 2013 email correspondence from Bill Johnson of the DNR about using ERM resources to provide access for the Cooperating Agencies to the lastest versions of PolyMet/Barr’s GoldSim model and outpust for both the Mine and Plant Sites.

[box]FOIAUSACE2013B_pd_080
PDF[/box] July 5, 2012 email correspondence from Cory Anderson of Barr about Version 1 of the Mine Site and Plant Site GoldSim posted to the project “Water Model Results Website.”

[box]FOIAUSACE2013B_pd_081
PDF[/box] December 21, 2012 Email correspondence from Bill Johnson about availability of updated GoldSim Mind Site model and player files.

[box]FOIAUSACE2013B_pd_082
PDF[/box] August 15, 2012 Email correspondence from Fred Marinelli about meeting with Barr to give an overview of 3-D modeling to evaluate the FTB groundwater capture system.

[box]FOIAUSACE2013B_pd_083
PDF[/box] October 9, 2012 Email correspondence from Fred Marinelli about GoldSim inputs to Plant Site model and review request.

[box]FOIAUSACE2013B_pd_084
PDF[/box] October 9, 2012 Email correspondence from David Blaha about GoldSim inputs to plant site model and confirmation on inputs.

[box]FOIAUSACE2013B_pd_085
PDF[/box] October 16, 2012 Michael Kunz of the DNR about GoldSim inputs to plant site model and the need for some form of documenting areas yet-to-be determined.

[box]FOIAUSACE2013B_pd_086
PDF[/box] November 9, 2012 Email correspondence from Fred Marinelli about GoldSim inputs table updates.

[box]FOIAUSACE2013B_pd_087
PDF[/box] November 9, 2012 Email correspondence from Bill Johnson about GoldSim model for Version 4 of GoldSim Input Tables that would include revised workplan data input tables, GoldSim model codes and CV drawings.

[box]FOIAUSACE2013B_pd_088
PDF[/box] November 12, 2012 Email correspondence from Bill Johnson about GoldSim input tables request and delivery of version 4.

[box]FOIAUSACE2013B_pd_089
PDF[/box] October 9, 2012 email correspondence from David Blaha about GoldSim inputs to plant sit model and ERM confirming inputs.

[box]FOIAUSACE2013B_pd_090
PDF[/box] October 9, 2012 Email correspondence from Bill Johnson about Water Modeling Workplan and process boundaries established between QA/QC and CDF/ECs processes.

[box]FOIAUSACE2013B_pd_091
PDF[/box] October 15, 2012 Email correspondence from Bill Johnson about the most recent version of the Plant Site Workplan table details.

[box]FOIAUSACE2013B_pd_092
PDF[/box] October 17, 2012 Email correspondence from Bill Johnson about NorthMet GoldSim QA/QC Tracking October 2, 2012 document provided by Tina Pint at Barr in response to the confirmation sought by ERM regarding values contained in Table1-22 of the Plant Site Water Modeling Workplan version seven.

[box]FOIAUSACE2013B_pd_093
PDF[/box] October 13, 2011 Email correspondence from Steve Colvin of the DNR about including Michael Liljegren from MN DNR Waters in the EPA/Barr PolyMet meetings about GoldSim inputs.

[box]FOIAUSACE2013B_pd_094
PDF[/box] September 30, 2012 Email correspondence from Peter Hinck of Barr about NorthMet GoldSim model version 3 posted to project website.

[box]FOIAUSACE2013B_pd_095
PDF[/box]April 15, 2013 Email correspondence from Peter Hinck of Barr about clarification of EPA’s comments on groundwater.

[box]FOIAUSACE2013B_pd_096
PDF[/box] February 2, 2012 Email correspondence from David Blaha of ERM about problems with the Plant Site model.

[box]FOIAUSACE2013B_pd_097
PDF[/box]February 25, 2013 Email correspondence from Bill Johnson of the DNR about acknowledging availability of NorthMet Mine Site and Plant Site Models (Version 5) on the Barr FTP site for review and comment by cooperating agencies.

[box]FOIAUSACE2013B_pd_098
PDF[/box]February 25, 2013 Email correspondence from Bill Johnson about comment forms for the model and the spreadsheets of GoldSim Mine Site and Plant Site Models.

[box]FOIAUSACE2013B_pd_099
PDF[/box] March 11, 2013 Email Correspondence from Peter Hinck about PolyMet GoldSim Model Review Period Check-ins for March 13, 2013 discussion/presentation topics.

[box]FOIAUSACE2013B_pd_100
PDF[/box] March 26, 2013 Email Correspondence from Bill Johnson of the DNR about EPA’s Comments/Question for the Next GoldSim Meeting.

[box]FOIAUSACE2013B_pd_101
PDF[/box]April 5, 2013 Email Correspondence from David Blaha about meeting to discuss EPA’s comments on the GoldSim Model

[box]FOIAUSACE2013B_pd_102
PDF[/box]April 5, 2013 Email Correspondence from Bill Johnson about setting up meeting to discuss EPA’s comments on the GoldSim model.

[box]FOIAUSACE2013B_pd_103
PDF[/box]April 5, 2013 Email Correspondence from Bill Johnson about review of EPA’s comments on the GoldSim model.

[box]FOIAUSACE2013B_pd_104
PDF[/box]April 9, 2013 Email Correspondence from Tina Pint about addressing EPA’s comments on the GoldSim Model and identifying areas where a sensitive analysis may address some issues.

[box]FOIAUSACE2013B_pd_105
PDF[/box]April 12, 2013 Email Correspondence from Peter Hinck about addressing EPA’s comments on the GoldSim Model and output information from an extreme case run of the Mine Site model.

[box]FOIAUSACE2013B_pd_106
PDF[/box]April 14, 2013 Email Correspondence from Peter Hinck about addressing EPA’s comments on the GoldSim Model and Barr’s responses.

[box]FOIAUSACE2013B_pd_107
PDF[/box]April 15, 2013 Email Correspondence from Peter Hinck about clarification on EPA’s comments on the Barnes’ program calculations.

[box]FOIAUSACE2013B_pd_108
PDF[/box]April 15, 2013 Email Correspondence from Bill Johnson about clarification on EPA’s comments on the Barnes’ program calculations.

[box]FOIAUSACE2013B_pd_109
PDF[/box]April 16, 2013 Email Correspondence from Peter Hinck about Mine Site Output for EPA comments number six.

[box]FOIAUSACE2013B_pd_110
PDF[/box]April 16, 2013 Email Correspondence from Bill Johnson about meeting agenda for Co-lead agencies.

[box]FOIAUSACE2013B_pd_111
PDF[/box]April 17, 2013 Email Correspondence from Bill Johnson about getting feedback prior to meeting for Co-lead agencies.

[box]FOIAUSACE2013B_pd_112
PDF[/box]April 23, 2013 Email Correspondence from Bill Johnson about meeting follow-up action items from co-lead meeting to consider ERA Treaty Authority Comments on GoldSim Model.

[box]FOIAUSACE2013B_pd_113
PDF[/box]May 7, 2013 Email Correspondence from Bill Johnson about EPA’s list of components for QA/QC for the GoldSim model.

[box]FOIAUSACE2013B_pd_114
PDF[/box]January 20, 2013 Email Correspondence from Peter Hinck about checking the GoldSim model inputs match the values in the Mine Site modeling workplan documentation.

[box]FOIAUSACE2013B_pd_115
PDF[/box] October 1, 2013 Email Correspondence from Tina Pint about GoldSim plant site model delay in finalizing.

[box]FOIAUSACE2013B_pd_116
PDF[/box]July 6, 2013 Email Correspondence from Erik Carlson about NorthMet EIS Agency Water Model Results Check and ERM QA/QC Task I and Task II workplan.

[box]FOIAUSACE2013B_pd_117
PDF[/box]February 25, 2013 Email Correspondence from Tina Pint about status of models for posting if nothing needs to be addressed for ERM’s QA/QC review.

[box]FOIAUSACE2013B_pd_118
PDF[/box]February 25, 2013 Email Correspondence from Bill Johnson about final set of QA/QC documentation prepared by ERM on the Mine and Plant Sites’ GoldSim Models.

[box]FOIAUSACE2013B_pd_119
PDF[/box]February 25, 2013 Email Correspondence from Bill Johnson about final set of QA/QC documentation prepared by ERM on the Mine and Plant Sites’ GoldSim Models and file name correction.

[box]FOIAUSACE2013B_pd_120
PDF[/box]February 25, 2013 Email Correspondence from Bill Johnson about QA/QC of GoldSim Models and the overall conclusion that the V5 GoldSim models are functionally accurate.

[box]FOIAUSACE2013B_pd_121
PDF[/box]February 26, 2013 Email Correspondence from Bill Johnson following up on QA/QC of GoldSim Models.

[box]FOIAUSACE2013B_pd_122
PDF[/box]February 27, 2013 Email Correspondence from Bill Johnson about follow up on QA/QC of GoldSim Models.

[box]FOIAUSACE2013B_pd_123
PDF[/box]May 8, 2013 Email Correspondence from Al Trippel about review of CDF documents about comprehensive/complex data package for QA/QC.

[box]FOIAUSACE2013B_pd_124
PDF[/box]May 9, 2013 Email Correspondence from Erik Carlson of the DNR about comprehensive review results of QA/QC.

[box]FOIAUSACE2013B_pd_125
PDF[/box]May 23, 2013 Email Correspondence from Erik Carlson of the DNR about meeting to discuss QA/QC Plant Site Task 1.

[box]FOIAUSACE2013B_pd_126
PDF[/box] July 23, 2013 Email Correspondence from Al Trippel about moving forward on QA/QC process and ERM’s attempt to complete Task I and II QA/QC.

[box]FOIAUSACE2013B_pd_127
PDF[/box] July 23, 2013 Email Correspondence from Al Trippel about schedule issues and PolyMet debugging their model.

[box]FOIAUSACE2013B_pd_128
PDF[/box]July 31, 2013 Email Correspondence from Al Trippel about logistics of QA/QC efforts.

[box]FOIAUSACE2013B_pd_129
PDF[/box] August 2, 2013 Email Correspondence from Fred Marinelli about total number of control volumes (CVs) and calculations points (CPs) for each site model.

[box]FOIAUSACE2013B_pd_130
PDF[/box] August 2, 2013 Email Correspondence from Peter Hinck about QA/QC tracking and issues identified.

[box]FOIAUSACE2013B_pd_131
PDF[/box] August 2, 2013 Email Correspondence from Peter Hinck about model files posted to website and request to use new model files for ongoing QA/QC.

[box]FOIAUSACE2013B_pd_132
PDF[/box] August 2, 2013 Email Correspondence from Fred Marinelli about total number of control volumes (CVs) and calculations points (CPs) for each site model.

[box]FOIAUSACE2013B_pd_133
PDF[/box] August 2, 2013 Email Correspondence from Peter Hinck about issues identified and paths forward for mine site models for QA/QC.

[box]FOIAUSACE2013B_pd_134
PDF[/box] January 22, 2013 Email Correspondence from Tina Pint about another QA/QC step performed by ERM on the Mine Site model.

[box]FOIAUSACE2013B_pd_135
PDF[/box] August 17, 2013 Email Correspondence from Peter Hinck about updated models on website and documentations.

[box]FOIAUSACE2013B_pd_136
PDF[/box] August 17, 2013 Email Correspondence from Cory D. Anderson of Barr about Plant Site model updated on website and tracking spreadsheets.

[box]FOIAUSACE2013B_pd_137
PDF[/box] November 13, 2013 Email Correspondence from Cory D. Anderson of Barr about Mine Site and Plant Site model zip files and results zip files on project website.

[box]FOIAUSACE2013B_pd_138
PDF[/box] November 18, 2011 report Model Evaluations Plans: NorthMet Project Water Quality, Draft, Houston Kempton

[box]FOIAUSACE2013B_pd_139
PDF[/box] December 23, 2011 report Water Model Evaluations Plans, NorthMet Project, Revised Draft.

[box]FOIAUSACE2013B_pd_140
PDF[/box] December 23, 2011 report, Dynamic Systems Model Evaluation Work Plans, NortheMet Project, Revised draft (marked copy).

[box]FOIAUSACE2013B_pd_141
PDF[/box] December 12, 2013 Email Correspondence from David Blaha with summary of meeting notes.

[box]FOIAUSACE2013B_pd_142
PDF[/box] September 6, 2013 Email Correspondence from Fred Marinelli about current schedule for completion of Task 2 – Phase 1 QA review on September 10, 2013 and the work that needs to be completed.

[box]FOIAUSACE2013B_pd_143
PDF[/box] March 23, 2013 Email Correspondence from Tina Pint about concerns of the GoldSim Model Evaluation and the benefits of talking through issues before they become part of public record.

[box]FOIAUSACE2013B_pd_144
PDF[/box] October 15, 2013 Email Correspondence from Fred Marinelli about question on the new value for sulfur on Table 1-22 from the most recent version of the Plant Site Workplan

[box]FOIAUSACE2013B_pd_145
PDF[/box] August 8, 2013 Email Correspondence from Bill Johnson about background document prepared by PolyMet to support a better team understanding of the GoldSim Model.

[box]FOIAUSACE2013B_pd_146
PDF[/box] August 31, 2013 Email Correspondence from Fred Marinelli about complexity of GoldSim model and creating a better understanding for team.

[box]FOIAUSACE2013B_pd_147
PDF[/box] August 31, 2013 Email Correspondence from Fred Marinelli about including more engineered features in GoldSim Quality Assurance.

[box]FOIAUSACE2013B_pd_148
PDF[/box] September 04, 2013 Email Correspondence from Erik Carlson of the DNR about PolyMet’s removal of the passive treatment technologies from their modeled project.

[box]FOIAUSACE2013B_pd_149
PDF[/box] September 05, 2013 Email Correspondence from Erik Carlson about re-running the model and schedule of next review.

[box]FOIAUSACE2013B_pd_150
PDF[/box] July 26, 2013 Email Correspondence from Erik Carlson about communicating directly with Barr to complete QA/QC process as efficiently as possible.

[box]FOIAUSACE2013B_pd_151
PDF[/box] April 25, 2013 Email Correspondence from Erik Carlson about requesting information that will be useful for reviewing of model results.

[box]FOIAUSACE2013B_pd_152
PDF[/box] April 26, 2013 Email Correspondence from Erik Carlson asking to ignore his last email about the info request.

[box]FOIAUSACE2013B_pd_153
PDF[/box] January 24, 2012 Email Correspondence from Al Trippel about Dave Blaha managing the ERM team review on water documents.

[box]FOIAUSACE2013B_pd_154
PDF[/box] July 21, 2013 Email Correspondence from Erik Carlson of DNR about QA/QC process and about potential errors and documentation of ERM-specified calculations. Suggests that ERM provide possible errors to Barr.

[box]FOIAUSACE2013B_pd_155
PDF[/box] August 2, 2013 Email Correspondence from Peter Hinck from Barr about QA/QC tracking and issues identified.

[box]FOIAUSACE2013B_pd_156
PDF[/box] February 25, 2013 Email Correspondence from David Blaha about trying to reconcile independent calculations.

[box]FOIAUSACE2013B_pd_157
PDF[/box] January 5,2012 Email Correspondence from Stuart Arkley about DNR’s comments on the QA/AC documents calling for more clarity.

[box]FOIAUSACE2013B_pd_158
PDF[/box]January 30, 2012 Email Correspondence from Tina Pint about Model Input Review steps.

[box]FOIAUSACE2013B_pd_159
PDF[/box] April 24, 2012 Email Correspondence from Houston Kempton about revised Q/A Phase I and II workplan evaluation plan.

[box]FOIAUSACE2013B_pd_160
PDF[/box] April 24, 2012 Email Correspondence from Erik Carlson about revised Q/A Phase I and II workplan comments 18 and 19 needing resolution.

[box]FOIAUSACE2013B_pd_161
PDF[/box] December 2, 2011 Email Correspondence from Stuart Arkley about ERM model evaluation plan for GoldSim based modeling.

[box]FOIAUSACE2013B_pd_162
PDF[/box] December 3, 2011 Email Correspondence from Jim Scott about possible correction to ERM Model Evaluation Plan for GoldSim.

[box]FOIAUSACE2013B_pd_163
PDF[/box] December 23, 2011 Email Correspondence from Stuart Akley about ERM submitting Version2 of the agency QA/QC plan for hydrologic and geochemical modeling.

[box]FOIAUSACE2013B_pd_164
PDF[/box] July 18, 2012 Email Correspondence from Fred Marinelli of Interralogic Inc. about GoldSim models questions.

[box]FOIAUSACE2013B_pd_165
PDF[/box] July 19, 2012 Email Correspondence from Cory D. Anderson explaining aspects of GoldSim models calculations.

[box]FOIAUSACE2013B_pd_166
PDF[/box] July 21, 2012 Email Correspondence from Fred Marinelli pertaining to GoldSim models calculations.

[box]FOIAUSACE2013B_pd_167
PDF[/box] December 10, 2012 Email Correspondence from Tina Pint from Barr about NorthMet Required Model updates.

[box]FOIAUSACE2013B_pd_168
PDF[/box] January 24, 2012 Email Correspondence from Al Trippel about Dave Blaha managing the ERM team review on water documents.

[box]FOIAUSACE2013B_pd_169
PDF[/box] June 12, 2013 Email Correspondence from Bill Johnson of DNR about co-lead agencies not requesting any formal ERM Water Team review of documentation.

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PDF[/box] April 26, 2012 Email Correspondence from Peter Hinck from Barr about asketch that shows what the flowchart should look like for structure meeting.

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PDF[/box] April 27, 2012 Email Correspondence from Fred Marinelli about scheduling with team for structure meeting.

[box]FOIAUSACE2013B_pd_172
PDF[/box] June 11, 2012 Email Correspondence from Cory D. Anderson of Barr about Barr’s response to comments for review of Plant Site Model Base v01.

[box]FOIAUSACE2013B_pd_173
PDF[/box] June 11, 2012 Email Correspondence from Melinda Todorov of Environmental Resources Management about Interralogic’s follow up comments to Barr’s response to comments on Task 1 QA for Plant Site.

[box]FOIAUSACE2013B_pd_174
PDF[/box] June 1, 2011 Email Correspondence from Bill Johnson of DNR about ERM GoldSim participants for meeting/presentation.

[box]FOIAUSACE2013B_pd_175
PDF[/box] June 24, 2011 Email Correspondence from David Blaha about the need to use probabilistic modeling over using GoldSim specifically.

[box]FOIAUSACE2013B_pd_176
PDF[/box] January 24, 2012 Email Correspondence from David Blaha about GoldSim Water Modeling process flow chart.

[box]FOIAUSACE2013B_pd_177
PDF[/box] August 5, 2011 Email Correspondence from Al Trippel about the viability of Barr’s approach to using the GoldSim model and Fred Marineli’s review of the NorthMet workplan.

[box]FOIAUSACE2013B_pd_178
PDF[/box] Document, PolyMet GoldSIm Model, Mine Site Model Comment Form.

[box]FOIAUSACE2013B_pd_179
PDF[/box] Document, PolyMet GoldSIm Model, Mine Site Model Results Spreadsheet Comment Form.

[box]FOIAUSACE2013B_pd_180
PDF[/box]Pages from GoldSim User’s Guide, Chapter 10: Advanced Modeling Concepts.

[box]FOIAUSACE2013B_pd_181
PDF[/box] July 2, 2012 NorthMet Mine Site Water Quality Model, Draft detailed Model Flowchart 2, GoldSim Model, Version 1.

[box]FOIAUSACE2013B_pd_182
PDF[/box]Document, Cat 1 Sulfate Mass Flux to West Pit after Installing of Geomembrance Cover.

[box]FOIAUSACE2013B_pd_183
PDF[/box] July 23, 2012 Email Correspondence from Erik Carlson of the DNR about the Minnesota Center for Environmental Advocacy (MCEA) retaining a consultant, Tom Myers to review the NorhtMet EIS water modeling documentation.

[box]FOIAUSACE2013B_pd_184
PDF[/box] May 8, 2012, Technical Memorandum from Interralogic, Inc to David Blaha at ERM about Plant Site GoldSim Model (Base v01) Task 1 QA Evaluation/Comments.

[box]FOIAUSACE2013B_pd_185
PDF[/box]July 27, 2012 Email Correspondence from Fred Marinelli about mine site CVs.

[box]FOIAUSACE2013B_pd_186
PDF[/box]July 29, 2012 Email Correspondence from Peter Hinck about mine site CVs and CPs.

[box]FOIAUSACE2013B_pd_187
PDF[/box] July 31, 2012 Email Correspondence from Al Trippel about Mine Site CVs and CPs and questioning the value in completely stopping QA/QC efforts.

[box]FOIAUSACE2013B_pd_188
PDF[/box] July 31, 2012 Email Correspondence from Al Trippel about Mine Site CVs and CPs and questioning the value in completely stopping QA/QC efforts.

[box]FOIAUSACE2013B_pd_189
PDF[/box] July 27, 2012 Email Correspondence from Fred Marinelli about mine site control volumes.

[box]FOIAUSACE2013B_pd_190
PDF[/box] July 21, 2012 Email Correspondence from Fred Marinelli about flow, concentration and chemical flux from Cat 1 stockpile and problems with reproducing sulfate values.

[box]FOIAUSACE2013B_pd_191
PDF[/box] February 1, 2012 Email Correspondence from David Blaha about mine site model updates and reference to not major problems, only minor problems.

[box]FOIAUSACE2013B_pd_192
PDF[/box] January 31, 2013 Email Correspondence from Cory D. Anderson of Barr about Mine Site model uploaded to the Barr project website.

[box]FOIAUSACE2013B_pd_193
PDF[/box] February 1, 2012 Email Correspondence from David Blaha about results from Phase I Mine Site Model Input Evaluation.

[box]FOIAUSACE2013B_pd_194
PDF[/box] February 2, 2012 Correspondence from Fred Marinelli about completing the Task I input evaluation of Mine Site GoldSim Model. Four discrepancies found.

[box]FOIAUSACE2013B_pd_195
PDF[/box] Table, Task 1 (input) Evaluation for Mine Site GoldSim Model

[box]FOIAUSACE2013B_pd_196
PDF[/box] Table, Task 1 (input) Evaluation for Mine Site GoldSim Model

[box]FOIAUSACE2013B_pd_197
PDF[/box] February 2, 2012 Correspondence from Fred Marinelli about completing the Task I input evaluation of Mine Site GoldSim Model. Four discrepancies found.

[box]FOIAUSACE2013B_pd_198
PDF[/box] June 20, 2012 Correspondence from Fred Marinelli about r equests made to Barr for updated work plan, date package and model impact results. Teleconference meeting proposed.

[box]FOIAUSACE2013B_pd_199
PDF[/box] December 18, 2011 Email Correspondence from Peter Hinck about comments on the GoldSim model evaluation plans.

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