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ii'ii'M up iiiii 1771164-R8SDMS UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 8 1595 Wynkoop Street DENVER, CO 80202-1129 Phone 800-227-8917 http://www.epa. gov/reg ion08 Administrative Record File Collection Cover Sheet Site Name: Gold King Mine Operable Unit (Name and number): OUOO CERCLIS Number: CON000802460 CERCLIS/ SEMS Action Type: Removal CERCLIS / SEMS Sequence number: 001 SDMS SEMS Collection Number for this collection: AR 64069 SDMS SEMS Collection creation date: 1/14/2016 This Administrative Record Collection has been created in SEMS. The collection has been "Frozen" in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016. G:\Regional Records Center\FORMS\AR Index Record Template for Superfund Rev 2 03/03/2014

Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

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Page 1: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

ii'ii'M up iiiii 1771164-R8SDMS

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION 8

1595 Wynkoop Street DENVER, CO 80202-1129

Phone 800-227-8917 http://www.epa. gov/reg ion08

Administrative Record File Collection Cover Sheet

Site Name: Gold King Mine Operable Unit (Name and number): OUOO CERCLIS Number: CON000802460 CERCLIS/ SEMS Action Type: Removal CERCLIS / SEMS Sequence number: 001 SDMS SEMS Collection Number for this collection: AR 64069 SDMS SEMS Collection creation date: 1/14/2016

This Administrative Record Collection has been created in SEMS. The collection has been "Frozen" in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016.

G:\Regional Records Center\FORMS\AR Index Record Template for Superfund Rev 2 03/03/2014

Page 2: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

Region Document ID Attributes Access Control Title Document Date Page Count

8 1287696 Administrative Record UCTL - Uncontrolled Upper Animas Draft SLERA Power Point Slides April 17, 2014 4/17/2014 21 8 1287697 Administrative Record UCTL - Uncontrolled 2010 Animas River Report - San Juan Basin 9/7/2010 17

8 1287698 Administrative Record UCTL - Uncontrolled Upper Animas River Surface Water Toxicity Testing Report - April 2013 Surface Water Collection - Final 9/1/2013 97

8 1287699 Administrative Record UCTL - Uncontrolled Animas River Sediment Toxicity Testing Report - December 2012 Sediment Collection 1/1/2014 72

8 1287700 Administrative Record UCTL - Uncontrolled Final - Upper Animas River, 2012 Surface Water Toxicity Testing Report 12/1/2013 125

8 1272374 Administrative Record UCTL - Uncontrolled Preliminary Evaluation of Remedial Alternatives Using a Reactive Transport Model: Cement Creek/Animas River - Powerpoint 7/17/2014 56

8 1559243 Administrative Record UCTL - Uncontrolled Draft Final Baseline Ecological Risk Assessment - Appendices 4/1/2015 877

8 1559242 Administrative Record UCTL - Uncontrolled Final Draft Baseline Ecological Risk Assessment 4/1/2015 118

8 1559244 Administrative Record UCTL - Uncontrolled Draft Final Baseline Ecological Risk Assessment - Figures 4/1/2015 38

8 1559245 Administrative Record UCTL - Uncontrolled Draft Final Baseline Ecological Risk Assessment - Tables 4/1/2015 166

8 1570355 Administrative Record UCTL - Uncontrolled

REDACTED: Email forwards email from CDRMS: Gold King Mine Site - Mine Blowout Notification Time Line from 5-Aug-2015 - summarizing response immediately following release 8/12/2015 2

8 1570604 Administrative Record UCTL - Uncontrolled Project Summary: Gold King Bond Forfeiture M-1986-013, Phase II — 2009 Reclamation at the Sampson, Number One, and Level Seven Portals Undated 5

8 1574032 Administrative Record UCTL - Uncontrolled REDACTED Draft Technical Memorandum [Weston Solutions to EPA]: Gold King Mine Investigation and Blowout Event 8/12/2015 64

8 1574046 Administrative Record UCTL - Uncontrolled REDACTED email describes chronology of Gold King Mine incident 8/16/2015 3

8 1547102 Administrative Record UCTL - Uncontrolled REDACTED Site File Memorandum (from EPA): Gold King Mine Release Site Partial Chronology w/ attachments 8/17/2015 10

Page 3: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1574135 Administrative Record UCTL - Uncontrolled

REDACTED RELEASABLE - SUMMARY REPORT- EPA Internal Review of the August 5, 2015 Gold King Mine Blowout and appendices A through F (no attachment G) downloaded from EPA website 8/24/2015 23

8 1622603 Administrative Record UCTL- Uncontrolled Dissolved Solids for location SJSR Undated 12

8 1622604 Administrative Record UCTL - Uncontrolled Dissolved Solids for location SJMH Undated 12

8 1622605 Administrative Record UCTL - Uncontrolled Dissolved Solids for location SJMC Undated 12

8 1622606 Administrative Record UCTL - Uncontrolled Dissolved Solids for location SJLP Undated 12

8 1622607 Administrative Record UCTL - Uncontrolled Dissolved Solids for location SJ4C Undated 12

8 1622609 Administrative Record UCTL - Uncontrolled Dissolved Solids for location Bakers Bridge Undated 12

8 1622608 Administrative Record UCTL - Uncontrolled Dissolved Solids for location CC48 Undated 12

8 1622611 Administrative Record UCTL - Uncontrolled Dissolved Solids for location A68 Undated 12

8 1622612 Administrative Record UCTL - Uncontrolled Dissolved Solids for location NSW-020 Undated 12

8 1622613 Administrative Record UCTL - Uncontrolled Dissolved Solids for location MW-020 Undated 12

8 1622610 Administrative Record UCTL - Uncontrolled Dissolved Solids for location A72 Undated 12

8 1622614 Administrative Record UCTL - Uncontrolled Dissolved Solids for location LVW-030 Undated 12

8 1622617 Administrative Record UCTL - Uncontrolled Dissolved Solids for location FW-012 Undated 12

8 1622619 Administrative Record UCTL - Uncontrolled Dissolved Solids for location ADW-021 Undated 12

8 1622620 Administrative Record UCTL - Uncontrolled Dissolved Solids for location ADW-010 Undated 12

8 1622621 Administrative Record UCTL - Uncontrolled GOLD KING MINE - WATERSHED FACT SHEET Undated 2

8 1622615 Administrative Record UCTL - Uncontrolled Dissolved Solids for location LVW-020 Undated 12

8 1622616 Administrative Record UCTL - Uncontrolled Dissolved Solids for location FW-040 Undated 12

8 1622618 Administrative Record UCTL - Uncontrolled Dissolved Solids for location ADW-022 Undated 12

8 1622622 Administrative Record UCTL - Uncontrolled Summary of EPA Surface Water Sampling of Select Metals - Results to Date, Gold King Mine Blowout 8/7/2015 6

8 1622623 Administrative Record UCTL - Uncontrolled PRELIMINARY Analytical Data, Upper Animas River Undated 6

8 1622626 Administrative Record UCTL - Uncontrolled Arizona in EPA's Region 9: Sediment Result Cumulative Table [last updated 9/25] 9/25/2015 34

8 1622627 Administrative Record UCTL - Uncontrolled Colorado and Utah in EPA's Region 8: Surface Water Result Cumulative Table [last updated 9/25] 9/25/2015 90

8 1622628 Administrative Record UCTL - Uncontrolled Colorado and Utah in EPA's Region 8: Sediment Result Cumulative Table [last updated 9/25] 9/25/2015 2

Page 4: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1622630 Administrative Record UCTL - Uncontrolled New Mexico and Navajo Nation in EPA's Region 6: Sediment Result Cumulative Table [last updated 9/25] 9/25/2015 101

8 1622631 Administrative Record UCTL- Uncontrolled Gold King Bond Forfeiture M-1986-013: Phase 1, 2008 Permanent Portal Discharge Diversion Structure Undated 2

8 1622624 Administrative Record UCTL - Uncontrolled pH of Common Substances 8/6/2015 1

8 1622625 Administrative Record UCTL - Uncontrolled Arizona in EPA's Region 9: Surface Water Result Cumulative Table [last updated 9/25] 9/25/2015 107

8 1622629 Administrative Record UCTL - Uncontrolled New Mexico and Navajo Nation in EPA's Region 6: Surface Water Result Cumulative Table [last updated 9/25] 9/25/2015 191

8 1622632 Administrative Record UCTL - Uncontrolled Flow and chemistry data from the Gold King Mine Adit Undated 6

8 1622634 Administrative Record UCTL - Uncontrolled REDACTED Water Quality Report - Four Mines Within Cement Creek Watershed 8/27/2012 41

8 1622635 Administrative Record UCTL - Uncontrolled REDACTED Final Screening-Level Ecological Risk Assessment, Upper Animas Mining District, San Juan County, Colorado 3/6/2013 129

8 1622637 Administrative Record UCTL - Uncontrolled

Draft Technical Memorandum: Historic, Current, and Predicted Metal Concentrations in the Animas River at A72 and Bakers Bridge w/ REDACTED transmittal email dated 9/30/2015 9/19/2015 25

8 1622638 Administrative Record UCTL - Uncontrolled REDACTED PolRep #1 (Initial Pollution Report) - Removal Assessment 9/25/2014 6

8 1719539 Administrative Record UCTL - Uncontrolled Administrative Record File Collection Cover Sheet 10/15/2015 4

8 1719738 Administrative Record UCTL - Uncontrolled SITREP#2: Initial Situation Report, Gold King Mine Blowout 8/7/2015 7

8 1719741 Administrative Record UCTL - Uncontrolled Screenshot of Notice of Public Comment Opportunity, Navajo Times website 10/8/2015 1

8 1719739 Administrative Record UCTL - Uncontrolled SITREP #3: Gold King Mine Release 8/11/2015 8

8 1719740 Administrative Record UCTL - Uncontrolled SITREP #4: Gold King Mine Release 8/12/2015 10

8 1719742 Administrative Record UCTL - Uncontrolled Notice of Public Comment Opportunity, Silverton Standard 10/8/2015 2

8 1719744 Administrative Record UCTL - Uncontrolled Letter [EPA to Durango Public Library] transmits Gold King Mine Release Site Removal Action AR CD (not attached) 10/5/2015 1

8 1719743 Administrative Record UCTL - Uncontrolled Notice of Public Comment Opportunity, The Daily Times 10/8/2015 1

Page 5: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1719745 Administrative Record UCTL - Uncontrolled Letter [EPA to Office of the Navajo Nation Library] transmits Gold King Mine Release Site Removal Action AR CD (not attached) 10/2/2015 1

8 1719746 Administrative Record UCTL - Uncontrolled Letter [EPA to Farmington Public Library] transmits Gold King Mine Release Site Removal Action AR CD (not attached) 10/2/2015 1

8 1719747 Administrative Record UCTL - Uncontrolled Letter [EPA to Silverton Public Library] transmits Gold King Mine Release Site Removal Action AR CD (not attached) 10/2/2015 1

8 1719772 Administrative Record UCTL - Uncontrolled USGS Professional Paper 1651: Integrated Investigations of Environmental Effects of Historical Mining in the Animas River Watershed, San Juan County, Colorado 1/1/2007 1098

8 1719927 Administrative Record UCTL - Uncontrolled Volume of Water for the August 5, 2015, Streamflow Event at the U.S. Geological Survey Streamgage 09358550 Cement Creek at Silverton, Colorado 12/1/2015 9

8 1719932 Administrative Record UCTL - Uncontrolled Letter [La Plata County to EPA] comments on initial Gold King Mine Administrative Record 11/4/2015 12

8 1719933 Administrative Record UCTL - Uncontrolled Notice of Public Comment Opportunity, Initial Gold King Mine Release Administrative Record, published in the Southern Ute Drum 10/16/2015 1

8 1765363 Administrative Record UCTL - Uncontrolled

Article by Alan Prendergast published in Westword 9/1/2005: "What Lies Beneath: The effort to reclaim a historic mining district has consumed years and millions of dollars. But will it hold water?" 9/1/2005 10

8 1765364 Administrative Record UCTL - Uncontrolled Colorado Division of Minerals and Geology, Minerals Program Inspection Report, Gold King Mine w/ attached Certificate of Service dated 5/7/2004 5/7/2004 17

8 1765387 Administrative Record UCTL - Uncontrolled Design Basis for Water Impounding Concrete Bulkhead, Red and Bonita Mine, San Juan County, Colorado 5/18/2015 38

8 1765388 Administrative Record UCTL - Uncontrolled Excel spreadsheet: Red and Bonita Bulkhead Design for probable pressure head 5/18/2015 0

8 1765389 Administrative Record UCTL - Uncontrolled Excel spreadsheet: Red and Bonita Bulkhead Design for maximum pressure 5/18/2015 0

Page 6: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1765390 Administrative Record UCTL - Uncontrolled Appendix B - Red and Bonita Mine Bulkhead Construction Requirements and Specifications 5/18/2015 36

8 1765391 Administrative Record UCTL- Uncontrolled Appendix C: Red and Bonita Bulkhead 2014 Packer Test Results 11/11/2014 3

8 1765405 Administrative Record UCTL - Uncontrolled

Draft Technical Memorandum [Jan Christner, Weston Solutions to Steven Way, EPA]: Flow Estimate from 4 Mines: Mogul, Red and Bonita, Gold King, and American Tunnel 12/18/2015 4

8 1765410 Administrative Record UCTL - Uncontrolled Notice of Public Comment Opportunity published in The Durango Herald 10/4/2014 w/ attached receipt. Proof of Publication 10/4/2015 5

8 1765413 Administrative Record UCTL - Uncontrolled PRELIMINARY Analytical Data, Upper Animas River Undated 6

8 1765687 Administrative Record UCTL - Uncontrolled Map of sampling locations Undated 1

8 1765688 Administrative Record UCTL - Uncontrolled Graph: Metal Trends Over Time for Location CC48 Undated 1

8 1765689 Administrative Record UCTL - Uncontrolled Graph: Metal Trends Over Time for Location A68 Undated 1

8 1765690 Administrative Record UCTL - Uncontrolled Graph: Metal Trends Over Time for Location A72 Undated 1

8 1765691 Administrative Record UCTL - Uncontrolled Graph: Metal Trends Over Time for Location Bakers Bridge Undated 1

8 1765692 Administrative Record UCTL - Uncontrolled Audio: Administrator Gina McCarthy's Press Conference, Durango, CO 8/12/15 (MP3) (11:35, 8MB) 8/12/2015 0

8 1765694 Administrative Record UCTL - Uncontrolled Fact sheet: Gold King Mine Emergency Response Qs & As 8/1/2015 2

8 1765695 Administrative Record UCTL - Uncontrolled Audio: Administrator Gina McCarthy's Press Conference, Farmington, NM (MP3) (20:27, 8MB) 8/13/2015 0

8 1765696 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table sample dates Aug 7,8 8/8/2015 0

8 1765693 Administrative Record UCTL - Uncontrolled Surface Water Summary Table 8/12/2015 0

8 1765697 Administrative Record UCTL - Uncontrolled Region 8 sediment validated data Undated 0

8 1765698 Administrative Record UCTL - Uncontrolled Final surface water sampling data (8/9/2015-8/10/2015) Undated 0

8 1765699 Administrative Record UCTL - Uncontrolled Region 9 water sampling data 8/6/2015 0

8 1765700 Administrative Record UCTL - Uncontrolled Final Surface Water Sampling Data (8/9/2015-8/10/2015) Undated 0

Page 7: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1765701 Administrative Record UCTL - Uncontrolled Water Quality Data from August 7 to August 11 [2015] on the San Juan River between Farmington and Shiprock (validated 8/15/2015) Undated 0

8 1765702 Administrative Record UCTL - Uncontrolled Region 9 water sampling data 8/15/2015 0

8 1765710 Administrative Record UCTL - Uncontrolled Fact sheet: Gold King Mine Emergency Response in Navajo Nation Undated 2

8 1765711 Administrative Record UCTL - Uncontrolled GOLD KING MINE - WATERSHED FACT SHEET Undated 2

8 1765712 Administrative Record UCTL - Uncontrolled Region 6 surface water sampling data 8/11/2015 0

8 1765715 Administrative Record UCTL - Uncontrolled Ditch sediment sampling data 8/13/2015 0

8 1765713 Administrative Record UCTL - Uncontrolled Surface water quality data 8/6/2015 0

8 1765714 Administrative Record UCTL - Uncontrolled Surface water quality data 8/12/2015 0

8 1765716 Administrative Record UCTL - Uncontrolled Region 6 intake sediment sampling data (8/10, 8/12, 8/13/2015) Undated 0

8 1765717 Administrative Record UCTL - Uncontrolled Region 6 sediment summary table 8/17/2015 0

8 1765718 Administrative Record UCTL - Uncontrolled Map: Livestock Watering Locations 8/19/2015 2

8 1765719 Administrative Record UCTL - Uncontrolled Intake sediment sampling data (8/10, 8/12, 8/13/2015) Undated 0

8 1765720 Administrative Record UCTL - Uncontrolled Region 9 sediment summary table 8/17/2015 0

8 1765721 Administrative Record UCTL - Uncontrolled Region 9 surface water summary table 8/17/2015 0

8 1765722 Administrative Record UCTL - Uncontrolled Region 9 sediment summary table 8/18/2015 0

8 1765723 Administrative Record UCTL - Uncontrolled Map: BIA Livestock Watering Locations 8/19/2015 2

8 1765724 Administrative Record UCTL - Uncontrolled Region 9 surface water samples 8/12/2015 0

8 1765725 Administrative Record UCTL - Uncontrolled Map: sampling locations along the San Juan River & Lake Powell Undated 1

8 1765727 Administrative Record UCTL - Uncontrolled Final Surface Water data (8/13 & 8/14/2015) Undated 0

8 1765728 Administrative Record UCTL - Uncontrolled Final Ditch Sediment data (8/13 & 8/14/2015) Undated 0

8 1765726 Administrative Record UCTL - Uncontrolled Final Intake Sediment data (8/11 & 8/14/2015) Undated 0

8 1765729 Administrative Record UCTL - Uncontrolled Region 9 surface water summary table 8/19/2015 0

8 1765731 Administrative Record UCTL - Uncontrolled Map:San Juan River sampling sites 8/20/2015 1

8 1765733 Administrative Record UCTL - Uncontrolled List of documents in Red & Bonita Mine site AR (not official AR index) Undated 2

8 1765730 Administrative Record UCTL - Uncontrolled Map: Lake Powell sampling sites 8/20/2015 1

8 1765732 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Summary Table 8/21/2015 0

8 1765734 Administrative Record UCTL - Uncontrolled Sediment summary table 8/17/2015 0

Page 8: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1765735 Administrative Record UCTL - Uncontrolled Sediment summary table 8/18/2015 0

8 1765736 Administrative Record UCTL - Uncontrolled REDACTED ARSG [Animas River Stakeholders Group] Meeting Summary 1/27/2015 3

8 1765737 Administrative Record UCTL - Uncontrolled REDACTED ARSG [Animas River Stakeholders Group] Meeting Summary 5/27/2015 3

8 1765738 Administrative Record UCTL - Uncontrolled Map: Approximation of Mine Portal Elevations and Mine Pool Elevations (REDACTED) 4/17/2014 1

8 1765739 Administrative Record UCTL - Uncontrolled Map: Red and Bonita, Sunnyside, Gold King, and Mogul and Grand Mogul Mine Workings (REDACTED) 2/6/2015 1

8 1765740 Administrative Record UCTL - Uncontrolled REDACTED POLREP #1 (Initial Pollution Report) - Removal Assessment 9/25/2014 6

8 1765742 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table (reviewed) 8/22/2015 0 8 1765743 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 8/24/2015 0 8 1765744 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 8/24/2015 0

8 1765748 Administrative Record UCTL-Uncontrolled Region 9 surface water data (8/17 & 8/18/2015), reviewed Undated 0 8 1765749 Administrative Record UCTL - Uncontrolled Region 6 sediment data 8/27/2015 0 8 1765750 Administrative Record UCTL - Uncontrolled Region 6 surface water data 8/27/2015 0 8 1765753 Administrative Record UCTL - Uncontrolled Region 9 surface water summary table 8/28/2015 0 8 1765751 Administrative Record UCTL - Uncontrolled Region 9 sediment data (8/17 & 8/18/2015) Undated 0 8 1765752 Administrative Record UCTL - Uncontrolled Region 9 sediment summary table 8/28/2015 0 8 1765754 Administrative Record UCTL - Uncontrolled Region 8 sediment data 8/28/2015 0 8 1765755 Administrative Record UCTL - Uncontrolled Region 8 surface water data 8/28/2015 0 8 1765756 Administrative Record UCTL - Uncontrolled Region 8 sediment data 8/23/2015 0 8 1765757 Administrative Record UCTL - Uncontrolled Region 6 sediment summary table 8/28/2015 0

8 1765758 Administrative Record UCTL - Uncontrolled Region 6 surface water summary table 8/28/2015 0 8 1765759 Administrative Record UCTL - Uncontrolled Region 8 Sediment Summary Table 8/29/2015 0 8 1765760 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 8/29/2015 0

8 1765762 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 8/29/2015 0 8 1765761 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 8/29/2015 0

8 1765763 Administrative Record UCTL - Uncontrolled REDACTED Summary Report - EPA Internal Review of the August 5, 2015 Gold King Mine Blowout, Attachments A-G Undated 17

8 1765766 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Summary Table 9/1/2015 0 8 1765768 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 9/2/2015 0

Page 9: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1765770 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/3/2015 0 8 1765767 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 9/1/2015 0

8 1765769 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/2/2015 0

8 1765777 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/7/2015 0 8 1765771 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 8/31/2015 0

8 1765772 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 9/1/2015 0 8 1765774 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 9/1/2015 0

8 1765773 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 8/31/2015 0

8 1765775 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 9/2/2015 0

8 1765781 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/4/2015 0

8 1765782 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/5/2015 0

8 1765783 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/6/2015 0

8 1765776 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 9/2/2015 0

8 1765778 Administrative Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/4/2015 0 8 1765779 Administrative Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/3/2015 0 8 1765780 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 9/4/2015 0

8 1765786 Administrative Record UCTL - Uncontrolled Gold King Mine Stakeholders Alert and Notification Plan 9/7/2015 4

8 1765787 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 9/6/2015 0

8 1765789 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 9/4/2015 0

8 1765791 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 9/10/2015 0

8 1765792 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/10/2015 0

8 1765790 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 9/4/2015 0

8 1765793 Administrative Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/10/2015 0

8 1765795 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 9/10/2015 0

8 1765796 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Summary Table 9/10/2015 0

8 1765794 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 9/10/2015 0

8 1765798 Administrative Record UCTL - Uncontrolled

SAMPLING AND ANALYSIS PLAN/QUALITY ASSURANCE PROJECT PLAN FOR GOLD KING MINE RELEASE, SILVERTON, SAN JUAN COUNTY, COLORADO (Contract No.: EP-S8-13-01 Technical Direction Document No.: 1508-04,1509-02 ) (rev. 1) 9/1/2015 132

8 1765799 Administrative Record UCTL - Uncontrolled Addendum 1 to Gold King Mine Release SAP/QAPP -- Surface and Sediment Sampling 8/27/2015 21

Page 10: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1765800 Administrative Record UCTL - Uncontrolled Gold King Mine Release Interim Final Quality Assurance Sampling Plan - Water and Sediment Sampling and Monitoring 8/13/2015 119

8 1765801 Administrative Record UCTL - Uncontrolled

Sampling and Analysis Plan/Quality Assurance Project Plan for Gold King Mine ER (Contract No.: EP -S5-13-02, Technical Direction Document No.: 0002/1302-T2-R9 15-08-0001, Document Control No.: 0066-08-AAGP) 9/1/2015 564

8 1765802 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/10/2015 0 8 1765803 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 9/10/2015 0 8 1765804 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 9/10/2015 0 8 1765806 Administrative Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 9/10/2015 0 8 1765807 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 9/10/2015 0 8 1765808 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 9/10/2015 0 8 1765805 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 9/10/2015 0 8 1765809 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 9/10/2015 0 8 1765811 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 9/13/2015 0

8 1765810 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 9/13/2015 0 8 1765816 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 9/16/2015 0 8 1765812 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 9/8/2015 0 8 1765813 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 9/10/2015 0 8 1765814 Administrative Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/7/2015 0 8 1765815 Administrative Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/8/2015 0 8 1765818 Administrative Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 9/16/2015 0 8 1765820 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 9/16/2015 0 8 1765817 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 9/16/2015 0 8 1765819 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 9/16/2015 0 8 1765821 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 9/16/2015 0 8 1765822 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Summary Table 9/3/2015 0 8 1765826 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 9/15/2015 0

8 1765828 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 9/7/2015 0

8 1765827 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 9/15/2015 0 8 1765829 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 9/7/2015 0

8 1765830 Administrative Record UCTL - Uncontrolled Attachment: Stakeholder Email List Undated 4

8 1765831 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 9/17/2015 0 8 1765835 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 9/17/2015 0

Page 11: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1765833 Administrat ve Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 9/17/2015 0

8 1765834 Administrat ve Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 9/17/2015 0

8 1765836 Administrat ve Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 9/17/2015 0

8 1765837 Administrat ve Record UCTL - Uncontrolled Region 6 Sediment Summary Table 9/17/2015 0

8 1765838 Administrat ve Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/17/2015 0

8 1765839 Administrat ve Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/15/2015 0

8 1765842 Administrat ve Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 9/18/2015 0

8 1765847 Administrat ve Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/16/2015 0

8 1765849 Administrat ve Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/19/2015 0

8 1765840 Administrat ve Record UCTL - Uncontrolled Region 8 Surface Water Summary Table 9/15/2015 0

8 1765841 Administrat ve Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 9/18/2015 0

8 1765843 Administrat ve Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 9/18/2015 0

8 1765844 Administrat ve Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 9/18/2015 0

8 1765845 Administrat ve Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 9/18/2015 0

8 1765846 Administrat ve Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 9/18/2015 0

8 1765848 Administrat ve Record UCTL - Uncontrolled Region 6 Sediment Summary Table 9/20/2015 0

8 1765853 Administrat ve Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 9/21/2015 0

8 1765850 Administrat ve Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 9/21/2015 0

8 1765851 Administrat ve Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 9/21/2015 0

8 1765852 Administrat ve Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 9/21/2015 0

8 1765854 Administrat ve Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 9/21/2015 0

8 1765855 Administrat ve Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 9/21/2015 0

8 1765856 Administrat ve Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/21/2015 0

8 1765857 Administrat ve Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 9/22/2015 0

8 1765858 Administrat ve Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 9/22/2015 0

8 1765859 Administrat ve Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 9/22/2015 0

8 1765860 Administrat ve Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 9/22/2015 0

8 1765861 Administrat ve Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 9/22/2015 0

8 1765862 Administrat ve Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 9/22/2015 0

8 1765863 Administrat ve Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/17/2015 0

8 1765864 Administrat ve Record UCTL - Uncontrolled Region 9 Sediment'Summary Table 9/18/2015 0

8 1765865 Administrat ve Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 9/18/2015 0

8 1765866 Administrat ve Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/23/2015 0

8 1765867 Administrat ve Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 9/23/2015 0

8 1765868 Administrat ve Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 9/23/2015 0

8 1765869 Administrat ve Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 9/23/2015 0

Page 12: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

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1765870 Administrative Record UCTL- Uncontro ed Region 8 Surface Water Cumulative Table 9/23/2015

1765871 Administrative Record UCTL - Uncontro ed Region 9 Sediment Cumulative Table 9/23/2015

1765872 Administrative Record UCTL - Uncontro ed Region 9 Surface Water Cumulative Table 9/23/2015

1765873 Administrative Record UCTL - Uncontro ed Region 6 Sediment Summary Table 9/24/2015

1765874 Administrative Record UCTL - Uncontro ed Region 6 Surface Water Summary Table 9/24/2015

1765875 Administrative Record UCTL - Uncontro ed Region 6 Sediment Cumulative Table 9/25/2015

1765876 Administrative Record UCTL - Uncontro ed Region 6 Surface Water Cumulative Table 9/25/2015

1765877 Administrative Record UCTL - Uncontro ed Region 8 Sediment Cumulative Table 9/25/2015

1765878 Administrative Record UCTL - Uncontro ed Region 8 Surface Water Cumulative Table 9/25/2015

1765879 Administrative Record UCTL - Uncontro ed Region 9 Sediment Cumulative Table 9/25/2015

1765880 Administrative Record UCTL - Uncontro ed Region 9 Surface Water Cumulative Table 9/25/2015

1765881 Administrative Record UCTL - Uncontro ed Region 8 Surface Water Summary Table 9/24/2015

1765882 Administrative Record UCTL - Uncontro ed Region 8 Surface Water Summary Table 9/25/2015

1765883 Administrative Record UCTL - Uncontro ed Region 8 Surface Water Summary Table 9/26/2015

1765887 Administrative Record UCTL - Uncontro ed Region 9 Sediment Summary Table 9/25/2015

1765888 Administrative Record UCTL - Uncontro ed Region 9 Surface Water Summary Table 9/25/2015

1765884 Administrative Record UCTL - Uncontro ed Region 8 Surface Water Summary Table 9/20/2015

1765885 Administrative Record UCTL - Uncontro ed Region 8 Surface Water Summary Table 9/18/2015

1765886 Administrative Record UCTL - Uncontro ed Region 8 Sediment Summary Table 9/26/2015

1765889 Administrative Record UCTL - Uncontro ed Region 8 Surface Water Summary Table 9/28/2015

1765900 Administrative Record UCTL - Uncontro ed Region 8 Sediment Cumulative Table 9/29/2015

1765890 Administrative Record UCTL - Uncontro ed Region 6 Sediment Cumulative Table 9/28/2015

1765891 Administrative Record UCTL - Uncontro ed Region 6 Surface Water Cumulative Table 9/28/2015

1765892 Administrative Record UCTL - Uncontro ed Region 8 Sediment Cumulative Table 9/28/2015

1765893 Administrative Record UCTL - Uncontro ed Region 8 Surface Water Cumulative Table 9/28/2015

1765894 Administrative Record UCTL - Uncontro ed Region 9 Sediment Cumulative Table 9/28/2015

1765895 Administrative Record UCTL - Uncontro ed Region 9 Surface Water Cumulative Table 9/28/2015

1765896 Administrative Record UCTL - Uncontro ed Region 6 Sediment Summary Table 9/28/2015

1765897 Administrative Record UCTL - Uncontro ed Region 6 Surface Water Summary Table 9/28/2015

1765898 Administrative Record UCTL - Uncontro ed Region 6 Sediment Cumulative Table 9/29/2015

1765899 Administrative Record UCTL - Uncontro ed Region 6 Surface Water Cumulative Table 9/29/2015

1765901 Administrative Record UCTL - Uncontro ed Region 8 Surface Water Cumulative Table 9/29/2015

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8 1765422 Administrative Record UCTL - Uncontrolled

Technical Memorandum: Estimated Metals Concentrations and Ecological Effects in the Animas River downstream of Silverton, Colorado without Treatment of Gold King Mine Discharge 1/4/2016 28

8 1765425 Administrative Record UCTL - Uncontrolled Construction Plans for Gold King Mine Portal Stabilization, San Juan County, Colorado (draft, revised) 10/29/2015 23

8 1765424 Administrative Record UCTL - Uncontrolled Construction Plans for Gold King Mine Portal Stabilization, San Juan County, Colorado (draft) 9/15/2015 19

8 1765426 Administrative Record UCTL - Uncontrolled PROPOSED WORK ORDER FOR WATER TREATMENT SERVICES, ENVIRONMENTAL RESTORATION - GOLD KING MINE SLUDGE 8/13/2015 0

8 1765902 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 9/29/2015 0

8 1765903 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 9/29/2015 0

8 1765904 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 9/29/2015 0

8 1765905 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 9/25/2015 0

8 1765906 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 9/25/2015 0

8 1765907 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 9/29/2015 0

8 1765909 Administrative Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/23/2015 0

8 1765910 Administrative Record UCTL - Uncontrolled Region 8 Sediment Summary Table 9/29/2015 0

8 1765911 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 9/30/2015 0

8 1765912 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 9/30/2015 0

8 1765913 Administrative Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 9/30/2015 0

8 1765914 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 9/30/2015 0

8 1765915 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 9/30/2015 0

8 1765916 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 9/30/2015 0

8 1765917 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 10/1/2015 0

8 1765918 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 10/1/2015 0

8 1765919 Administrative Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 10/1/2015 0

8 1765920 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 10/1/2015 0

8 1766001 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 10/1/2015 0

8 1766002 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 10/1/2015 0

8 1766003 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Summary Table 10/2/2015 0

8 1766004 Administrative Record UCTL - Uncontrolled Region 8 Sediment Summary Table 10/2/2015 0

8 1766005 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 10/1/2015 0

8 1766006 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 10/2/2015 0

Page 14: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1766007 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 10/2/2015 0

8 1766008 Administrative Record UCTL- Uncontrolled Region 6 Surface Water SummaryTable 10/1/2015 0

8 1766009 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 10/4/2015 0

8 1766010 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 10/4/2015 0

8 1766011 Administrative Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 10/4/2015 0

8 1766015 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 10/4/2015 0

8 1766016 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 10/4/2015 0

8 1766020 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 10/5/2015 0

8 1766021 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 10/5/2015 0

8 1766022 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 10/5/2015 0

8 1766012 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 10/4/2015 0

8 1766013 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 10/4/2015 0

8 1766014 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 10/4/2015 0

8 1766017 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 10/5/2015 0

8 1766018 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 10/5/2015 0

8 1766019 Administrative Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 10/5/2015 0

8 1766023 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 10/7/2015 0

8 1766024 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 10/7/2015 0

8 1766025 Administrative Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 10/7/2015 0

8 1766026 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 10/7/2015 0

8 1766027 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 10/7/2015 0

8 1766032 Administrative Record UCTL - Uncontrolled Region 8 Sediment Summary Table 10/6/2015 0

8 1766028 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 10/7/2015 0

8 1766029 Administrative Record UCTL - Uncontrolled

Water Storage Tank Sampling Report, Gold King Mine Emergency Response (ER), San Juan County, Navajo Nation (Contract # EP-S5-13-02, TDD#: 0002/1302-T2-R9-15-08-0001, Document Control Number: 0066-08-AAGS) 10/9/2015 19

8 1766030 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 10/5/2015 0

8 1766031 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 10/8/2015 0

8 1766033 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Summary Table 10/6/2015 0

8 1766034 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 9/28/2015 0

8 1766035 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 9/28/2015 0

8 1766036 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Summary Table 10/10/2015 0

8 1766037 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 10/14/2015 0

Page 15: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1766038 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 10/14/2015 0

8 1766039 Administrative Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 10/14/2015 0

8 1766041 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 10/14/2015 0

8 1766040 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 10/14/2015 0

8 1766042 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 10/14/2015 0

8 1766043 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Summary Table 10/15/2015 0

8 1766044 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 10/21/2015 0

8 1766045 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 10/21/2015 0

8 1766046 Administrative Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 10/21/2015 0

8 1766047 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 10/21/2015 0

8 1766048 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 10/21/2015 0

8 1766049 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 10/21/2015 0

8 1766050 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Summary Table 10/18/2015 0

8 1766051 Administrative Record UCTL - Uncontrolled Region 6 Sediment Summary Table 10/15/2015 0

8 1766054 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table 10/3/2015 0

8 1766055 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table 10/3/2015 0

8 1766056 Administrative Record UCTL - Uncontrolled Region 6 Sediment Cumulative Table 10/28/2015 0

8 1766057 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 10/28/2015 0

8 1766058 Administrative Record UCTL - Uncontrolled Region 8 Sediment Cumulative Table 10/28/2015 0

8 1766059 Administrative Record UCTL - Uncontrolled Region 8 Surface Water Cumulative Table 10/28/2015 0

8 1766060 Administrative Record UCTL - Uncontrolled Region 9 Sediment Cumulative Table 10/28/2015 0

8 1766061 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Cumulative Table 10/28/2015 0

8 1766064 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table (10/5-10/8/2015) 10/8/2015 0

8 1766065 Administrative Record UCTL - Uncontrolled Region 9 Sediment Summary Table (10/12-10/20/2015) 10/20/2015 0

8 1766066 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table (10/5-10/8/2015) 10/8/2015 0

8 1766067 Administrative Record UCTL - Uncontrolled Region 9 Surface Water Summary Table (10/2-10/9/2015) 10/9/2015 0

8 1766068 Administrative Record UCTL - Uncontrolled REDACTED Addendum to EPA Internal Review of Gold King Mine Incident Undated 6

8 1766069 Administrative Record UCTL - Uncontrolled REDACTED Report Attachment #1: Addendum to EPA Internal Review of Gold King Mine Incident 7/29/2015 1

8 1766071 Administrative Record UCTL - Uncontrolled REDACTED Addendum to EPA Internal Review of Gold King Mine Incident, Attachment 3 Undated 2

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8 1766072 Administrative Record UCTL- Uncontrolled REDACTED Addendum to EPA Internal Review of Gold King Mine Incident, Attachment 4 Undated 23

8 1766073 Administrative Record UCTL - Uncontrolled REDACTED Addendum to EPA Internal Review of Gold King Mine Incident, Attachment 5 Undated 13

8 1766074 Administrative Record UCTL - Uncontrolled REDACTED Addendum to EPA Internal Review of Gold King Mine incident, Attachment 6 Undated 1

8 1766070 Administrative Record UCTL - Uncontrolled REDACTED Addendum to EPA Internal Review of Gold King Mine Incident, Attachment 2 Undated „ 3

8 1766076 Administrative Record UCTL - Uncontrolled REDACTED Memorandum transmits Addendum to EPA Internal Review of Gold King Mine Incident (not attached) 12/8/2015 1

8 1766077 Administrative Record UCTL - Uncontrolled TestAmerica Analytical Report Job ID: 680-117013-8, Gold King Mine 10/28/2015 28

8 1766078 Administrative Record UCTL - Uncontrolled DATA VALIDATION REPORT SAMPLE DELIVERY GROUP: 680-117013-5 (Water) Undated 18

8 1766079 Administrative Record UCTL - Uncontrolled DATA VALIDATION REPORT SAMPLE DELIVERY GROUP: 680-117013-6 (Water) Undated 9

8 1766080 Administrative Record UCTL - Uncontrolled DATA VALIDATION REPORT SAMPLE DELIVERY GROUP: 680-117013-7 (Water) Undated 9

8 1766085 Administrative Record UCTL - Uncontrolled DATA VALIDATION REPORT SAMPLE DELIVERY GROUP: 680-117013-3 (Sediment) Undated 9

8 1766081 Administrative Record UCTL - Uncontrolled DATA VALIDATION REPORT SAMPLE DELIVERY GROUP: 680-117013-4 (Sediment / Water) Undated 12

8 1766082 Administrative Record UCTL - Uncontrolled DATA VALIDATION REPORT SAMPLE DELIVERY GROUP: D75708 (Water and Sediment) Undated 10

8 1766083 Administrative Record UCTL - Uncontrolled DATA VALIDATION REPORT SAMPLE DELIVERY GROUP: 680-117013-1 (Sediment) Undated 18

8 1766084 Administrative Record UCTL - Uncontrolled DATA VALIDATION REPORT SAMPLE DELIVERY GROUP: 680-117013-2 (Sediment) Undated 9

8 1766086 Administrative Record UCTL - Uncontrolled Sampling data 680-117013-5_validatededd_mecx_20151014 10/14/2015 0

8 1766088 Administrative Record' UCTL - Uncontrolled Sampling data 680-117013-7_validatededd_mecx_20151002 10/2/2015 0

8 1766089 Administrative Record UCTL - Uncontrolled Sampling data 680-117013-4_validatededd_mecx_20150930 9/30/2015 0

8 1766087 Administrative Record UCTL - Uncontrolled 680-117013-6_validatededd_mecx_20151002 (XLSX) 10/2/2015 0

8 1766090 Administrative Record UCTL - Uncontrolled Sampling data d75708_validatededd_mecx_20151015 10/15/2015 0

8 1766093 Administrative Record UCTL - Uncontrolled Sampling data 680-117013-3_validatededd_mecx_20150929 9/29/2015 0

Page 17: Administrative Record File Collection Cover Sheet · in SEMS as of 4/15/2016. Copies of this Administrative Record Collection were mailed to information repositories on 4/19/2016

8 1766091 Administrative Record UCTL- Uncontrolled Sampling data 680-117013-l_validatededd_mecx_20150925 9/25/2015 0

8 1766092 Administrative Record UCTL - Uncontrolled Sampling data 680-117013-2_validatededd_mecx_20151014 10/14/2015 0

8 1766094 Administrative Record UCTL - Uncontrolled REDACTED Email: RE: Red and Bonita Mine - bulkhead and Gold King Mine portal rehab plans 5/1/2015 2

8 1766117 Administrative Record UCTL - Uncontrolled Notice of Public Comment Opportunity [published in The Durango HErald] 10/8/2015 1

8 1766118 Administrative Record UCTL - Uncontrolled REDACTED Letter presents Avalanche Hazard Observations for the Gold King Mine Project Site, Gladstone, Colorado 11/20/2015 3

8 1765832 Administrative Record UCTL - Uncontrolled Region 6 Surface Water Cumulative Table 9/17/2015 0

8 1766119 Administrative Record UCTL - Uncontrolled

Action Memorandum: Documentation of an Emergency Removal Action [...] initiated pursuant to the On-Scene Coordinator's delegated authority under CERCLA Section 104 and a Request for Approval and Funding to Continue the Emergency Removal Action 1/13/2016 26

8 1766121 Administrative Record UCTL - Uncontrolled Letter transmits Gold King Mine Adit Sampling Analysis 11/24/2015 278

8 1766155 Administrative Record UCTL - Uncontrolled REDACTED Email: Gold King Mine Administrative Record 10/14/2015 1

8 1766156 Administrative Record UCTL - Uncontrolled REDACTED Email comments on initial Gold King Mine Administrative Record 10/7/2015 2

8 1770423 Administrative Record UCTL - Uncontrolled Email responds to email dated 8/9/2015 re Jan Juan County information and anticipated need following Gold King Mine release 8/10/2015 2

8 1771145 Administrative Record UCTL - Uncontrolled Gold King Mine Release Emergency Removal Action: Community Involvement Plan 3/1/2016 74

8 1771164 Administrative Record UCTL - Uncontrolled Administrative Record File Collection Cover Sheet Undated 0