| Key Documents | ||||||
| Guidance Documents List | ||||||
| Readme | ||||||
| About the Administrative Record | ||||||
| Iron King Mine - Humboldt Smelter Superfund Site Operable Unit 1 Proposed Plan Administrative Record Town of Dewey-Humboldt, Arizona Released: 03/08/2023 |
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| Index # | Doc Date | Title/Subject | Author/Auth. Org. | Addressee/Addr. Org. | Doc ID # | Images |
| 1 | 09/01/2008 | SAP, rev 1 RI/FS, w/TL to L Butler fr D McReynolds 9/13/08 | R09: (E A Engineering, Science, & Technology, Inc) | R09: (Environmental Protection Agency - Region 6) | 1127633 | View Doc |
| 2 | 09/22/2010 | Email: Transmits ADEQ comments on remedial alternative evaluation technical memo (RAETM) (revision 00) - RI/FS, dated Aug 2010, w/o attch | R09: Stonebrink, Brian (AZ Dept of Environmental Quality) | R09: O'sullivan, Monika (Environmental Protection Agency - Region 9) | 1131158 | View Doc |
| 3 | 03/04/2010 | Email: Transmits requested ARARs & ARARs rev 4 for FS, w/attchs | R09: Stonebrink, Brian (AZ Dept of Environmental Quality) | R09: Butler, Leah (Environmental Protection Agency - Region 9) | 1131786 | View Doc |
| 4 | 02/02/2010 | Email: Status of AZ's list of ARARs, w/history | R09: Stonebrink, Brian (AZ Dept of Environmental Quality) | R09: Butler, Leah (Environmental Protection Agency - Region 9) | 1131928 | View Doc |
| 5 | 01/13/2010 | Email: Request for ARARs ltr, w/history | R09: Stonebrink, Brian (AZ Dept of Environmental Quality) | R09: Butler, Leah (Environmental Protection Agency - Region 9) | 1131988 | View Doc |
| 6 | 07/21/2010 | Email: ARARs tentative determination, w/history & w/o attch | R09: Stonebrink, Brian (AZ Dept of Environmental Quality) | R09: Butler, Leah (Environmental Protection Agency - Region 9) | 1134014 | View Doc |
| 7 | 11/11/2013 | Public Notice (Draft): Upcoming 12/7/13 EPA-sponsored community meeting & field work | R09: Pease, Amanda (Environmental Protection Agency - Region 9), R09: Dhont, Jeff (Environmental Protection Agency - Region 9) | 1146220 | View Doc | |
| 8 | 12/07/2013 | Public Notice: EPA-sponsored community meeting for site 12/7/13 (to discuss field work & understanding & reducing exposure to arsenic & lead in Dewey-Humboldt area) | R09: (Environmental Protection Agency - Region 9) | 1146222 | View Doc | |
| 9 | 07/01/2014 | Newsletter: Town of Dewey-Humboldt newsletter, Jul 2014, v9 issue 7 (EPA article on p1) | R09: (Town of Dewey-Humboldt, AZ) | 1146223 | View Doc | |
| 10 | 11/01/2013 | Answers to residents' questions about sampling yards by EPA (re fact sheet - EPA to conduct field work to complete cleanup investigation; new info about residential background & soils) | R09: (Environmental Protection Agency - Region 9) | 1147291 | View Doc | |
| 11 | Undated | Article: Arsenic in drinking water (for Sep issue of Dewey-Humboldt town newsletter) | R09: Botsford, Jennifer (AZ Dept of Health Services) | 1147292 | View Doc | |
| 12 | 12/07/2013 | Public Notice: Agenda for EPA-sponsored community mtg to discuss field work & understanding & reducing exposure to arsenic & lead in Dewey-Humboldt area | R09: (Environmental Protection Agency - Region 9) | 1147294 | View Doc | |
| 13 | 11/01/2013 | Fact Sheet: EPA to conduct field work to complete cleanup investigation; new info about residential background & soils | R09: (Environmental Protection Agency - Region 9) | 1147295 | View Doc | |
| 14 | 06/01/2012 | Removal rpt (text only), w/o apps A-F | R09: (Ecology & Environment, Inc) | R09: (Environmental Protection Agency - Region 9) | 1150141 | View Doc |
| 15 | 06/01/2012 | Removal rpt (figures, tables, & apps A-F) | R09: (Ecology & Environment, Inc) | R09: (Environmental Protection Agency - Region 9) | 1150147 | View Doc |
| 16 | 09/22/2010 | Ltr: ADEQ review & comments on remedial alternative evaluation technical memo by EA Engineering (rev 00), dated Aug 2010 | R09: Stonebrink, Brian (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: O'sullivan, Monika (Environmental Protection Agency - Region 9) | 1152394 | View Doc |
| 17 | 04/01/2015 | Fact Sheet: EPA updates on residential soil results | R09: (Environmental Protection Agency - Region 9) | 1156084 | View Doc | |
| 18 | 04/01/2015 | Fact Sheet: EPA sampling results for arsenic & lead in soils in residential yards | R09: (Environmental Protection Agency - Region 9) | 1156085 | View Doc | |
| 19 | 04/01/2016 | Article: EPA updates on current work at Superfund site (for Dewey-Humboldt Newsletter Apr 2016) | R09: (Environmental Protection Agency - Region 9) | 1174528 | View Doc | |
| 20 | 02/01/2017 | Article: EPA updates on current work at Superfund site (for Feb 2017 Dewey-Humboldt Newsletter) | R09: (Environmental Protection Agency - Region 9) | 1174529 | View Doc | |
| 21 | 09/01/2016 | Fact Sheet: EPA issues RI & risk assessment rpts; next steps in cleanup of residential yards | R09: (Environmental Protection Agency - Region 9) | 1174531 | View Doc | |
| 22 | 03/01/2017 | Fact Sheet: Preparation underway for soils cleanup in certain residential yards | R09: (Environmental Protection Agency - Region 9) | 1174532 | View Doc | |
| 23 | 04/05/2017 | Public Notice: Community meeting & open house about cleanup of residential yards in Dewey-Humboldt, 4/5/17 (postcard) | R09: (Environmental Protection Agency - Region 9) | 1174535 | View Doc | |
| 24 | 02/17/2016 | Ltr: Update on EPA activities at site | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9), R09: Parker, Heather (Environmental Protection Agency - Region 9) | R09: Kimball, Yvonne (Town of Dewey-Humboldt, AZ - Office of the Town Manager) | 1174537 | View Doc |
| 25 | 09/01/2016 | RI rpt, w/o tables, figures (except Executive Summary figures) or appendices A-O | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231338 | View Doc |
| 26 | 09/01/2016 | RI rpt (tables only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231339 | View Doc |
| 27 | 09/01/2016 | RI rpt (Figures in Section 1 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231341 | View Doc |
| 28 | 09/01/2016 | RI rpt (Figures in Section 2 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231342 | View Doc |
| 29 | 09/01/2016 | RI rpt (Figures in Section 3 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231343 | View Doc |
| 30 | 09/01/2016 | RI rpt (Figures in Section 4 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231344 | View Doc |
| 31 | 09/01/2016 | RI rpt (Figures in Section 5 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231345 | View Doc |
| 32 | 09/01/2016 | RI rpt (Figures in Section 6 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231346 | View Doc |
| 33 | 09/01/2016 | RI rpt (figures in Section 7 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231347 | View Doc |
| 34 | 09/01/2016 | RI rpt (Figures in Section 8 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231348 | View Doc |
| 35 | 09/01/2016 | RI rpt (Figures in Section 9 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231349 | View Doc |
| 36 | 09/01/2016 | RI rpt (Figures in Section 10 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231350 | View Doc |
| 37 | 09/01/2016 | RI rpt (Figures in Section 11 only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231351 | View Doc |
| 38 | 09/01/2016 | RI rpt (Appendix A - site photos only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231352 | View Doc |
| 39 | 09/01/2016 | RI rpt (Appendix B - 11/10/08 cultural resource & historic building survey) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231353 | View Doc |
| 40 | 09/01/2016 | RI rpt (Appendix C - Dec 2008 aerial photographic analysis only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231354 | View Doc |
| 41 | 09/01/2016 | RI rpt (Appendix D - interim removal action rpts) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231355 | View Doc |
| 42 | 09/01/2016 | RI rpt (Appendix E - Jun 2015 soil background study rpt) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231356 | View Doc |
| 43 | 09/01/2016 | RI rpt (Appendix F - Feb 2015 EPA Environmental Response Team (ERT) data gap RI rpt, text & figures only) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231357 | View Doc |
| 44 | 09/01/2016 | RI rpt (Appendix G - analytical data (description & tables G-1 through G-5)) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231358 | View Doc |
| 45 | 09/01/2016 | RI rpt (Appendix H, soil bioavailability - derivation of site-specific oral bioavailability adjustment factor for arsenic in soil) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231359 | View Doc |
| 46 | 09/01/2016 | RI rpt (Appendix I - evaluation of tailings mixing in Chaparral Gulch & tailings floodplain) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231360 | View Doc |
| 47 | 09/01/2016 | RI rpt (Appendix J - residential sampling results & yard-specific maps) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231361 | View Doc |
| 48 | 09/01/2016 | RI rpt (Appendix K - supplemental human health risk assessment (HHRA) info) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231362 | View Doc |
| 49 | 09/01/2016 | RI rpt (Appendix L - toxicological fact sheets for arsenic & lead) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231363 | View Doc |
| 50 | 09/01/2016 | RI rpt (Appendix M - supplemental Ecological Risk Assessment (ERA) info) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231364 | View Doc |
| 51 | 09/01/2016 | RI rpt (Appendix N - air monitoring data) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231365 | View Doc |
| 52 | 09/01/2016 | RI rpt (Appendix O - mine workings & Sanborn fire insurance maps) | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 1231366 | View Doc |
| 53 | 10/30/2013 | Technical Memo: Accelerated residential sampling, w/attchs & email TL to Z Searles & J Dhont 10/31/13 | R09: Grossman, Scott (Lockheed Martin Information Systems & Global Solutions - Civil Environmental Services) | R09: Johnson, Terrence (Environmental Protection Agency - Environmental Response Team) | 1245496 | View Doc |
| 54 | 11/21/2021 | Email: Transmits & discusses ADEQ approved proposal for smelter demolition & fencing, & draft map, w/attchs | R09: Pace, Joey (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245497 | View Doc |
| 55 | 10/14/2016 | Email: Informs of change to field schedule for next week & forwards Strauss response ltr to Senator McCain, w/attch | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: Harker, Karin (AZ Dept of Environmental Quality - Federal Projects Unit) | 1245500 | View Doc |
| 56 | 03/01/2022 | Email: Transmits KMZ format file of Dec HSP flyover (New Humboldt AOI Orthomosaic), w/o attch | R09: Pace, Joey (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245501 | View Doc |
| 57 | 04/22/2014 | Map: Figure 9, Bioaccessibility & Bioassessment proposed sampling locations, 17 x 11 in, color, 3 in =1600 ft, w/email TLs | R09: (Lockheed Martin Corp) | R09: (Environmental Protection Agency - Emergency Response Team) | 1245502 | View Doc |
| 58 | 11/07/2013 | Email: Transmits draft supplemental field investigation workplan (latest version), w/history & attch | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: Raykhman, Natasha (C H 2 M Hill, Inc) | 1245503 | View Doc |
| 59 | 05/25/2016 | Email: Response to voicemail inquiry re Senator McCain ltr to EPA Administrator Gina McCarthy, w/attchs & forward to B Keener 6/14/16 | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: Maier, Brent (Environmental Protection Agency - Region 9) | 1245504 | View Doc |
| 60 | 01/04/2013 | Email: Transmits "Compilation & review of data on relative bioavailability of arsenic in soil" & "Recommendations for default value for relative bioavailability" memos & upper-bound RBA related rpts, w/history & attchs (11) | R09: Serda, Sophia (Environmental Protection Agency - Region 9) | R09: Ball, Harold (Environmental Protection Agency - Region 9) | 1245505 | View Doc |
| 61 | 02/24/2022 | Email: Transmits & discusses SOW & cost estimate for Posi-Shell repair work at Humboldt Smelter, w/attch | R09: Pace, Joey (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245506 | View Doc |
| 62 | 12/09/2021 | Email: Transmits draft Humboldt Smelter project workplan & provides instructions on commenting, w/attch | R09: Pace, Joey (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245507 | View Doc |
| 63 | 01/17/2018 | Ltr: ADEQ evaluation of RI rpt dated Sep 2016, w/email TL | R09: Harker, Karin (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245508 | View Doc |
| 64 | 06/21/2019 | Ltr: Review of Humboldt Smelter dam stability technical memo dated 6/19/19, w/email TL | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245509 | View Doc |
| 65 | 09/22/2021 | Ltr: Comments on redline draft Humboldt Smelter FS & response to comments, w/email TL | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245510 | View Doc |
| 66 | 06/27/2019 | Ltr: Review of geochemical technical memo dated 6/14/19, w/email TL | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245511 | View Doc |
| 67 | 06/14/2019 | Ltr: Review of draft Geotechnical investigation & analysis technical memo dated 5/14/19, w/email TL | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245512 | View Doc |
| 68 | 06/27/2019 | Ltr: Review of site identification & initial screening of potential technologies & process options technical memo dated 6/18/19, w/email TL | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245513 | View Doc |
| 69 | 06/27/2019 | Ltr: Review of Soil borrow & material balance technical memo dated 6/14/19, w/email TL | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245514 | View Doc |
| 70 | 04/25/2019 | Ltr: Review of draft potential ARARs, w/email TL | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245515 | View Doc |
| 71 | 02/25/2019 | Ltr: Review of FS strategy (objectives, data needs & schedule) technical memo dated 12/28/18, w/email TL to J Dhont & K Ueno | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245516 | View Doc |
| 72 | 06/17/2021 | Ltr: Provides 2 possible additions to state ARARs list (response to 6/7 ltr), w/email TL | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245517 | View Doc |
| 73 | 05/12/2021 | Ltr: Review of draft FS, Mar 2021, w/email TL | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245518 | View Doc |
| 74 | 11/22/2013 | Email: Transmits 1st 2 sampling plan maps (Figures 1 & 2) in PDF format, w/attchs | R09: Ebel, Martin (Lockheed Martin Technology Services) | R09: Bussey, Donald (Environmental Protection Agency - Environmental Response Team), R09: Johnson, Terrence (Environmental Protection Agency - Environmental Response Team) | 1245519 | View Doc |
| 75 | 02/28/2014 | QAPP amendment 3 (draft), w/email TL to J Dhont, et al fr D Getty 2/27/14 | R09: (Lockheed Martin Corp) | R09: (Environmental Protection Agency - Environmental Response Team) | 1245520 | View Doc |
| 76 | 12/09/2013 | Memo: Scope & field approach for residential risk-based sampling planned 2013/2014 field event (residential sampling strategy), w/email TL to J Dhont fr N Raykhman & attchs | R09: (Environmental Protection Agency - Region 9) | R09: (Environmental Protection Agency - Environmental Response Team) | 1245521 | View Doc |
| 77 | 01/17/2017 | Email: Transmits draft QAPP amendment 3, w/history & attchs | R09: Gerard, Henry (Environmental Protection Agency - Environmental Response Team) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245523 | View Doc |
| 78 | 04/16/2020 | Ltr: Review & comments on draft final FS, w/email TL | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245524 | View Doc |
| 79 | 02/27/2014 | Email: Response to question re draft QAPP - latest version needs review to consider additional potential changes (ref Most recent version of Iron King QAPP), w/history | R09: Bussey, Donald (Environmental Protection Agency - Environmental Response Team) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245525 | View Doc |
| 80 | 03/30/2022 | Email: Discusses contract for application of additional Posi-Shell, w/history & attch (proposal for Humboldt Smelter repair) | R09: Pace, Joey (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1245526 | View Doc |
| 81 | 06/30/2014 | Email: Transmits emails with bioaccessibility data (ref QC Results for IVBA), w/history & tables, w/o attchs | R09: Shelton, Dennis (C H 2 M Hill, Inc) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9), R09: Raykhman, Natasha (C H 2 M Hill, Inc), R09: Sturn, Richard (C H 2 M Hill, Inc) | 1245527 | View Doc |
| 82 | 01/24/2023 | List of EPA guidance documents consulted during development & selection of response action for site | R09: (Environmental Protection Agency - Region 9) | 1247677 | View Doc | |
| 83 | 06/06/2017 | (Redacted) Spreadsheet: Iron King mailing list | R09: Pease, Amanda (Environmental Protection Agency - Region 9) | 1247690 | View Doc | |
| 84 | 09/01/2022 | Feasibility study (FS) - addressing remedial action alternatives for non-residential & potential future residential portions of site - public comment version, w/appendices A-G | R09: (Tetra Tech, Inc) | R09: (Environmental Protection Agency - Region 9) | 1247699 | View Doc |
| 85 | 06/01/2021 | Presentation: #1, A look at site (with photo tour) (Recorded presentation series) (MP4 format) | R09: (Environmental Protection Agency - Region 9) | 1247700 | View Doc | |
| 86 | 06/01/2021 | Presentation: #2, Defining the problem - Remedial Investigation (RI) (Recorded presentation series) (MP4 format) | R09: (Environmental Protection Agency - Region 9) | 1247701 | View Doc | |
| 87 | 06/01/2021 | Presentation: #3, Options for cleanup - Feasibility Study (FS) (Recorded presentation series) (MP4 format) | R09: (Environmental Protection Agency - Region 9) | 1247702 | View Doc | |
| 88 | 06/01/2021 | Presentation: #4, Interim dust control, fencing, & signs (Recorded presentation series) (MP4 format) | R09: (Environmental Protection Agency - Region 9) | 1247703 | View Doc | |
| 89 | 06/01/2021 | Presentation: #5, Remedial Investigation (RI) & cleanup (Recorded presentation series) (MP4 format) | R09: (Environmental Protection Agency - Region 9) | 1247704 | View Doc | |
| 90 | 06/01/2021 | Presentation: #6, Future reuse of Smelter property (Recorded presentation series) (MP4 format) | R09: (Environmental Protection Agency - Region 9) | 1247705 | View Doc | |
| 91 | 06/01/2021 | Presentation: #7, Health concern - natural arsenic in private drinking water wells (Recorded presentation series) (MP4 format) | R09: (Environmental Protection Agency - Region 9) | 1247706 | View Doc | |
| 92 | 07/13/2021 | Presentation: Dewey-Humboldt Town Council study session (7/13/21 Town Council meeting) (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1247707 | View Doc | |
| 93 | 09/11/2019 | Presentation: Site remedial & removal activity (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1247709 | View Doc | |
| 94 | 04/01/2015 | Presentation: Findings for arsenic & lead in residential yards, Apr 2015 (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1247710 | View Doc | |
| 95 | 02/20/2018 | Presentation: Completion of cleanup action for residential soils (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: (Town of Dewey-Humboldt, AZ - Town Council) | 1247711 | View Doc |
| 96 | 11/19/2019 | Presentation: Dewey-Humboldt Town Council update, 11/19/19 (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 1247712 | View Doc | |
| 97 | 05/12/2006 | Administrative settlement agreement & order on consent #2006-13 for removal action, w/apps 1 & 2 | R09: (Environmental Protection Agency - Region 9) | 2113744 | View Doc | |
| 98 | 04/11/2006 | Action Memo: Request for time-critical removal action at Chaparral Gulch Residential site, Dewey-Humboldt, Yavapai County, AZ, w/fax cover & confirmation to D Wallis fr M Benson 5/2/06 | R09: Allen, Harry (Environmental Protection Agency - Region 9) | R09: Meer, Daniel (Environmental Protection Agency - Region 9), R09: Guria, Peter (Environmental Protection Agency - Region 9) | 2150492 | View Doc |
| 99 | 01/07/2009 | Site biological evaluation, w/appendix A | R09: (Envirosystems Management, Inc) | R09: (E A Engineering, Science, & Technology, Inc) | 2182309 | View Doc |
| 100 | 03/04/2010 | Ltr: Transmits ARARs requested in 12/17/09 ltr, w/encl | R09: Stonebrink, Brian (AZ Dept of Environmental Quality) | R09: Butler, Leah (Environmental Protection Agency - Region 9) | 2211620 | View Doc |
| 101 | 07/26/2011 | Action Memo: Request for time-critical removal action at site, w/o enforcement confidential addendum | R09: Benson, Craig (Environmental Protection Agency - Region 9) | R09: Meer, Daniel (Environmental Protection Agency - Region 9) | 2240720 | View Doc |
| 102 | 09/25/2012 | Action Memo: Request for 12-month exemption to continue time-critical removal action at site | R09: Powell, Martin (Environmental Protection Agency - Region 9) | R09: Meer, Daniel (Environmental Protection Agency - Region 9) | 2244957 | View Doc |
| 103 | 04/19/2012 | Memo: Transmits field rpt for XRF field analytical support, 4/16-19/12, w/attch | R09: Nagle, Greg (Environmental Protection Agency - Region 9 Laboratory) | R09: O'sullivan, Monika (Environmental Protection Agency - Region 9) | 2271762 | View Doc |
| 104 | 04/25/2012 | Newsclips (25): Various site-related articles fr ADEQ Early Bird (email newsletter), w/email TL fr W Flood to M O'Sullivan, et al | R09: (AZ Dept of Environmental Quality) | 2271764 | View Doc | |
| 105 | 04/26/2012 | Newsclip: Dewey-Humboldt residents worry about what old mine has left behind | R09: (KNAU.org) | 2271765 | View Doc | |
| 106 | 06/14/2006 | Maps (3): Public supply wells, groundwater well locations & SI & ESI groundwater sample locations, 8.5 in x 11 in, 5/16/06-6/14/06, w/list of public supply wells & domestic wells within 4 miles of site | R09: Hessler, Mary (AZ Dept of Environmental Quality) | 2272132 | View Doc | |
| 107 | 06/01/2010 | Planning for the future - reuse assessment for site, w/appendices A-D | R09: (E 2 Consulting Engineers, Inc) | R09: (Town of Dewey-Humboldt, AZ) | 2274067 | View Doc |
| 108 | 12/04/2013 | Public Notice: EPA invites public to 12/7/13 community meeting | R09: (Environmental Protection Agency - Region 9) | R09: (Big Bug News) | 2292145 | View Doc |
| 109 | 12/04/2013 | Public Notice: EPA invites public to 12/7/13 community meeting | R09: (Environmental Protection Agency - Region 9) | R09: (Prescott Valley Tribune) | 2292146 | View Doc |
| 110 | 11/30/2013 | Public Notice: EPA invites public to 12/7/13 community meeting | R09: (Environmental Protection Agency - Region 9) | R09: (Prescott Daily Courier, The (Newspaper)) | 2295430 | View Doc |
| 111 | 06/01/1931 | Map: Southwest Metals, Co, Humboldt, AZ site map | R09: (Sanborn Map Co) | 2306324 | View Doc | |
| 112 | 09/01/1917 | Oversize Maps (2): Southwest Metals Co, Humboldt, AZ, 2 ft x 2 ft | R09: (Sanborn Map Co) | 2306325 | View Doc | |
| 113 | 09/01/2012 | Fact Sheet: Interim removal rpt available online - update on field investigation efforts | R09: (Environmental Protection Agency - Region 9) | 2324819 | View Doc | |
| 114 | 10/30/2013 | Technical Memo: Accelerated residential sampling, w/tables, figures & apps A-D | R09: Grossman, Scott (Lockheed Martin Information Systems & Global Solutions - Civil Environmental Services) | R09: Johnson, Terrence (Environmental Protection Agency - Environmental Response Team) | 2327262 | View Doc |
| 115 | 05/30/2012 | Oversize Aerial Photos (13): Various site views, sizes & scales vary, color, w/marginalia | R09: (E A Engineering, Science, & Technology, Inc) | R09: (Environmental Protection Agency - Region 9) | 2330048 | View Doc |
| 116 | 08/01/2011 | Fact Sheet: Residential yard cleanup to start this Fall | R09: (Environmental Protection Agency - Region 9) | 2330057 | View Doc | |
| 117 | 09/01/2011 | Fact Sheet: Frequently asked questions | R09: (Environmental Protection Agency - Region 9) | 2330058 | View Doc | |
| 118 | Undated | Fact Sheet: How to reduce your exposure to arsenic & lead in Dewey-Humboldt, AZ | R09: (US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry), R09: (AZ Dept of Health Services) | 2331440 | View Doc | |
| 119 | Undated | EPA update on recently completed field work | R09: (Environmental Protection Agency - Region 9) | 2331442 | View Doc | |
| 120 | 03/26/2009 | Health consultation re site tailings | R09: (AZ Dept of Health Services - Office of Environmental Health) | R09: (US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry) | 2342732 | View Doc |
| 121 | 02/25/2010 | Relative bioavailability of arsenic in 2 soils fr site, w/apps A-E | R09: Brattin, William (S R C Corp) | R09: (Environmental Protection Agency - Office of Superfund Remediation & Technology Innovation) | 2342733 | View Doc |
| 122 | 04/01/2008 | Fact Sheet: Site proposed for Superfund list | R09: (Environmental Protection Agency - Region 9) | 2343552 | View Doc | |
| 123 | 02/01/2009 | Fact Sheet: EPA conducts ambient air sampling | R09: (Environmental Protection Agency - Region 9) | 2343554 | View Doc | |
| 124 | 05/01/2009 | Fact Sheet: Chaparral Gulch shows elevated arsenic | R09: (Environmental Protection Agency - Region 9) | 2343555 | View Doc | |
| 125 | 08/11/2006 | Memos (3): Polrep 1, initiation of removal action 7/24/06 (7/28/06), Polrep 2 (8/4/06), Polrep 3 (8/11/06) | R09: Allen, Harry (Environmental Protection Agency - Region 9) | R09: Meer, Daniel (Environmental Protection Agency - Region 9) | 2343561 | View Doc |
| 126 | 06/30/2008 | Memo: Final polrep for removal action (7/24/06-5/17/08) | R09: Allen, Harry (Environmental Protection Agency - Region 9) | R09: Meer, Daniel (Environmental Protection Agency - Region 9), R09: Guria, Peter (Environmental Protection Agency - Region 9) | 2343562 | View Doc |
| 127 | 07/01/2009 | Fact Sheet: Reusing Superfund sites - summary overview | R09: (Environmental Protection Agency - Region 9) | 2344893 | View Doc | |
| 128 | 08/01/2007 | Fact Sheet: ToxFAQs - Arsenic (CAS #7440-38-2) | R09: (US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry) | 2344894 | View Doc | |
| 129 | 08/01/2007 | Fact Sheet: Lead, CAS # 7439-92-1 | R09: (US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry) | 2344895 | View Doc | |
| 130 | 03/01/2010 | Newsletter: Dewey-Humboldt newsletter (v5, issue 2) | R09: (Town of Dewey-Humboldt, AZ) | 2344901 | View Doc | |
| 131 | 01/01/2006 | Pamphlet: Arizona, know your water - consumer's guide to water sources, quality, regulations & home water treatment options | R09: (Univ of Arizona - College of Agriculture & Life Sciences) | 2344932 | View Doc | |
| 132 | 09/11/1917 | Oversize Drawing: Southwest Metals Co, Humboldt, AZ, 25 in x 25 in, 3.5 in = 150 ft | R09: (Sanborn Map Co) | 2344945 | View Doc | |
| 133 | 02/22/2012 | Oversize Maps (14): RI/FS, color, 35 in x 22 in, scales vary, 11/12/09-2/22/12 | R09: (E A Engineering, Science, & Technology, Inc) | R09: (Environmental Protection Agency - Region 9) | 2344946 | View Doc |
| 134 | 04/17/2015 | Oversize Aerial Photos (4): EPC numbers & results for lead & arsenic residential yard soil sampling, 4/9/15 & 4/17/15, color, 5 ft x 3 ft, scales vary | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 2344949 | View Doc |
| 135 | 04/17/2015 | Oversize Aerial Photos (4): Posters - EPC numbers & results for lead & arsenic residential yard soil sampling, 4/9/15 & 4/17/15, color, 5 ft x 3 ft, scales vary | R09: (C H 2 M Hill, Inc) | R09: (Environmental Protection Agency - Region 9) | 2344950 | View Doc |
| 136 | 01/24/2017 | Action Memo: Project ceiling increase approval, funding, & exemption fr $2 million statutary limit to continue removal action at site, w/attchs B & C, w/o attch A (enforcement confidential addendum) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9), R09: Powell, Martin (Environmental Protection Agency - Region 9) | R09: Manzanilla, Enrique (Environmental Protection Agency - Region 9) | 2380103 | View Doc |
| 137 | 10/01/2009 | Fact Sheet: Investigation rpt due this winter - EPA & ADEQ booth at Agua Fria Festival | R09: (Environmental Protection Agency - Region 9) | 100002359 | View Doc | |
| 138 | 04/01/2011 | Fact Sheet: Residential soil sampling completed ahead of upcoming yard cleanup | R09: (Environmental Protection Agency - Region 9) | 100002370 | View Doc | |
| 139 | 09/16/2019 | Action Memo: Request for ceiling increase approval to continue removal action at site, w/o attchs A-C | R09: Musante, Jason (Environmental Protection Agency - Region 9) | R09: Manzanilla, Enrique (Environmental Protection Agency - Region 9) | 100018364 | View Doc |
| 140 | 10/01/2019 | Fact Sheet: Keep children away fr former smelter & mine properties | R09: (Environmental Protection Agency - Region 9) | 100018625 | View Doc | |
| 141 | 06/01/2020 | Former smelter property reuse assessment | R09: (Environmental Protection Agency - Region 9) | 100020908 | View Doc | |
| 142 | 09/16/2020 | Fact Sheet: Stay away fr former smelter & mine properties (Sep 2020) | R09: (Environmental Protection Agency - Region 9) | 100021493 | View Doc | |
| 143 | 06/17/2021 | Ltr: Provides 2 possible additions to state ARARs list | R09: Peterson, John (AZ Dept of Environmental Quality) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100024161 | View Doc |
| 144 | 06/07/2021 | Ltr: Thanks for comments on draft FS rpt - discusses continuing coordination with state re ARARs | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: Harker, Karin (AZ Dept of Environmental Quality - Federal Projects Unit) | 100027444 | View Doc |
| 145 | 06/07/2021 | Email: Thanks for ltr re ARARs coordination, w/history | R09: Harker, Karin (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100027445 | View Doc |
| 146 | 12/17/2013 | Oversize Map: Figure 2a, residential area - arsenic (residential sample IDs site-wide AS-E), 44 x 34 in, color, 1 in = 250 ft | R09: (C H 2 M Hill, Inc), R09: (Critigen) | R09: (Environmental Protection Agency) | 100027839 | View Doc |
| 147 | 12/17/2013 | Oversize Map: Figure 2b, residential area, lead (residential sample IDs site-wide, EPC-Pb), 44 x 34 in, color, 1 in = 250 ft | R09: (C H 2 M Hill, Inc), R09: (Critigen) | R09: (Environmental Protection Agency) | 100027840 | View Doc |
| 148 | 04/28/2022 | Stack demolition & fencing completion rpt – former Humboldt Smelter property, w/appendices A-D | R09: (Tetra Tech, Inc) | R09: (AZ Dept of Environmental Quality), R09: (Humboldt Smelter) | 100027889 | View Doc |
| 149 | 02/07/2013 | Health consultation - evaluation of ambient air sampling results | R09: (AZ Dept of Health Services) | 100028512 | View Doc | |
| 150 | 03/16/2017 | Health consultation - update for water sampling results | R09: (AZ Dept of Health Services - Office of Environmental Health) | 100028513 | View Doc | |
| 151 | 06/06/2019 | Presentation: Briefing re site (for AZ Senator Martha McSally) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100028514 | View Doc | |
| 152 | 10/12/2016 | Ltr: Response to 9/16/16 ltr sent to Administrator G McCarthy, w/o encl | R09: Strauss, Alexis (Environmental Protection Agency - Region 9) | R09: Mccain, John (US Senate - Office of John McCain) | 100028515 | View Doc |
| 153 | 02/01/2018 | Newsletter: Dewey-Humboldt newsletter, Feb 2018, v13 issue 2 (EPA notice on p2) | R09: (Town of Dewey-Humboldt, AZ) | 100028517 | View Doc | |
| 154 | 12/01/2021 | Newsletter: Dewey-Humboldt newsletter, Dec 2021, v16 issue 12 (EPA update & EPA/ADEQ article on p2) | R09: (Town of Dewey-Humboldt, AZ) | 100028518 | View Doc | |
| 155 | 08/01/2017 | Newsletter: Dewey-Humboldt newsletter, Aug 2017, v12, issue 8 | R09: (Town of Dewey-Humboldt, AZ) | 100028519 | View Doc | |
| 156 | 01/01/2019 | Newsletter: Dewey-Humboldt newsletter, Jan 2019, v14 issue 1 (public notice for EPA community workshop on p1 & 3) | R09: (Town of Dewey-Humboldt, AZ) | 100028520 | View Doc | |
| 157 | 05/01/2019 | Newsletter: Dewey-Humboldt newsletter, May 2019, v14 issue 5 (public notice for EPA community workshop on p2) | R09: (Town of Dewey-Humboldt, AZ) | 100028521 | View Doc | |
| 158 | 11/01/2019 | Newsletter: Dewey-Humboldt newsletter, Nov 2019, v14 issue 11 (EPA notice on p4) | R09: (Town of Dewey-Humboldt, AZ) | 100028522 | View Doc | |
| 159 | 10/01/2021 | Newsletter: Dewey-Humboldt newsletter, Oct 2021, v16 issue 10 (EPA update on p1) | R09: (Town of Dewey-Humboldt, AZ) | 100028523 | View Doc | |
| 160 | 09/01/2017 | Newsletter: Dewey-Humboldt newsletter, Sep 2017, v12 issue 9 (EPA article on p2) | R09: (Town of Dewey-Humboldt, AZ) | 100028524 | View Doc | |
| 161 | 07/01/2020 | Newsletter: Dewey-Humboldt newsletter, Jul 2020, v15 issue 7 (EPA article on p2) | R09: (Town of Dewey-Humboldt, AZ) | 100028525 | View Doc | |
| 162 | 09/01/2019 | Newsletter: Dewey-Humboldt newsletter, Sep 2019, v14 issue 9 (EPA update article on p4) | R09: (Town of Dewey-Humboldt, AZ) | 100028526 | View Doc | |
| 163 | 08/01/2021 | Newsletter: Dewey-Humboldt newsletter, Aug 2021, v16 issue 8 (EPA articles pp 3 & 4) | R09: (Town of Dewey-Humboldt, AZ) | 100028527 | View Doc | |
| 164 | 10/01/2008 | Newsletter: Dewey-Humboldt newsletter, Oct 2008, v3 issue 4 (EPA rpt on p1) | R09: (Town of Dewey-Humboldt, AZ) | 100028528 | View Doc | |
| 165 | 01/01/2013 | Fact Sheet: Air quality & health near site - summary of 2013 health consultation by AZ Dept of Health Services & ATSDR | R09: (US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry), R09: (AZ Dept of Health Services) | 100028600 | View Doc | |
| 166 | 08/01/2007 | Fact Sheet: Public health statement - arsenic (CAS# 7440-38-2) | R09: (US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry) | 100028601 | View Doc | |
| 167 | 12/01/2013 | Fact Sheet: ATSDR & ADHS work at site | R09: (US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry), R09: (AZ Dept of Health Services) | 100028602 | View Doc | |
| 168 | 01/01/2002 | Drinking water fr household wells (EPA 816-K-02-003) | R09: (Environmental Protection Agency) | 100028603 | View Doc | |
| 169 | 09/01/2009 | Fact Sheet: Water facts - home water treatment options (AZ Cooperative Extension, AZ1498) | R09: Artiola, Janick (Univ of Arizona - Dept of Soil, Water & Environmental Science), R09: Uhlman, Kristine (Univ of Arizona - Water Resources Research Center), R09: Farrell-poe, Kathryn (Univ of Arizona - Dept of Agricultural & Biosystems Engineering) | 100028604 | View Doc | |
| 170 | 10/03/2019 | Press Release: EPA warns residents to stay away fr Iron King Mine tailings pile & Humboldt Smelter | R09: (Environmental Protection Agency - Region 9) | 100028742 | View Doc | |
| 171 | Undated | Oversize Table: Table 8-1, site features (presentation slide 1) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028743 | View Doc | |
| 172 | Undated | Oversize Map: Figure 8-1, conceptual site model, 34 x 22, color, 4 in = 1000 ft (presentation slide 2) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028744 | View Doc | |
| 173 | Undated | Oversize Maps (2): Iron King Mine - arsenic & lead in surface soil, 34 x 44 in, color, 6 in = 500 ft (presentation slide 3 - figures 5-1 & 5-2) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028745 | View Doc | |
| 174 | Undated | Oversize Maps (2): Humboldt Smelter - arsenic & lead in surface soil, 34 x 44 in, color, 6 in = 500 ft (presentation slide 4 - figures 5-21 & 5-22) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028746 | View Doc | |
| 175 | Undated | Oversize Maps (2): Upper Chaparral Gulch, Lower & Middle Chaparral Gulch - arsenic in sediment, 34 x 44 in, color, 6 in = 500 ft (presentation slide 5a) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028747 | View Doc | |
| 176 | Undated | Oversize Maps (2): Sulfate in groundwater, & chloride in groundwater, 34 x 44 in, color, 3 in = 2 mi (presentation slide #6) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028748 | View Doc | |
| 177 | Undated | Oversize Maps (2): Arsenic in groundwater, & lead in groundwater, 34 x 44 in, color, 5 in = 4000 ft (presentation slide 7) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028749 | View Doc | |
| 178 | Undated | Oversize Charts (2): Particulate ambient air concentrations, arsenic & lead ambient air concentrations (presentation slide 8) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028750 | View Doc | |
| 179 | Undated | Oversize Maps (2): Background lead concentrations, & background arsenic concentrations, 34 x 44 in, color, 3 in = 1000 ft (presentation slide 9) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028751 | View Doc | |
| 180 | Undated | Oversize Maps (2): Arsenic in in-town soil, Lead in in-town soil, 34 x 44 in, color, 5 in = 1000 ft (presentation slide 11) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028752 | View Doc | |
| 181 | Undated | Oversize Map: Site features, 34 x 22 in, color, 4 in = 1000 ft (presentation slide #12) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028753 | View Doc | |
| 182 | 04/01/2017 | Presentation: Preparing for cleanup action for residential soils, Apr 2017 (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100028754 | View Doc | |
| 183 | 02/21/2013 | Presentation: Getting the scoop on site (Feb 2013) (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100028755 | View Doc | |
| 184 | 03/20/2013 | Presentation: ADEQ technical brief on site, Sep 26 2013 (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9), R09: Searles, Zizi (Environmental Protection Agency - Region 9) | 100028756 | View Doc | |
| 185 | 09/25/2018 | Presentation: Planning for the future (public presentation 9/25/18) (PPTX format) | R09: (Skeo Solutions, Inc) | R09: (Environmental Protection Agency - Region 9), R09: (Town of Dewey-Humboldt, AZ - Town Council) | 100028757 | View Doc |
| 186 | 12/07/2013 | Presentation: Public meeting & open house (seminar Sat 12/7/13 - presentation #1) (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100028758 | View Doc | |
| 187 | 12/07/2013 | Presentation: Residential yards (public meeting seminar, Sat 12/7/13, presentation #2) (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100028759 | View Doc | |
| 188 | 10/01/2016 | Presentation: Progress update, Town Council, Oct 2016 (for 10/18/16 presentation) (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: (Town of Dewey-Humboldt, AZ - Town Council) | 100028760 | View Doc |
| 189 | 08/01/2017 | Presentation: Completion of cleanup action for residential soils, Aug 2017 (for Town Council update 8/15/17) (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: (Town of Dewey-Humboldt, AZ - Town Council) | 100028761 | View Doc |
| 190 | 09/25/2018 | Presentation: Possible land reuse/redevelopment at Smelter property within FS of cleanup alternatives (PPTX format) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: (Town of Dewey-Humboldt, AZ - Town Council) | 100028762 | View Doc |
| 191 | 07/13/2021 | Presentation: Dewey-Humboldt Town Council study session (7/13/21 Town Council meeting) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100028763 | View Doc | |
| 192 | 09/11/2019 | Presentation: Site remedial & removal activity | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100028765 | View Doc | |
| 193 | 04/01/2015 | Presentation: Findings for arsenic & lead in residential yards, Apr 2015 | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100028766 | View Doc | |
| 194 | 02/20/2018 | Presentation: Completion of cleanup action for residential soils | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: (Town of Dewey-Humboldt, AZ - Town Council) | 100028767 | View Doc |
| 195 | 11/19/2019 | Presentation: Dewey-Humboldt Town Council update, 11/19/19 | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100028768 | View Doc | |
| 196 | Undated | Maps (2): Upper Chaparral Gulch, Lower & Middle Chaparral Gulch - lead in sediment, 34 x 44 in, color, 3 in = 500 ft (slide 5b for presentation) | R09: (AZ Dept of Environmental Quality), R09: (Environmental Protection Agency) | 100028945 | View Doc | |
| 197 | 03/01/2018 | Removal action rpt, w/appendices A-D | R09: (Weston Solutions, Inc) | R09: (Environmental Protection Agency - Region 9) | 100029002 | View Doc |
| 198 | 06/30/2017 | Memo: POLREP #5, final (residential removal, period 6/20-6/30) | R09: Weden, Christopher (Environmental Protection Agency - Region 9) | R09: Meer, Daniel (Environmental Protection Agency - Region 9), R09: Manzanilla, Enrique (Environmental Protection Agency - Region 9), R09: Allen, Harry (Environmental Protection Agency - Region 9) | 100029003 | View Doc |
| 199 | 07/24/2013 | Maps (3): Sampling & possible removal areas for properties at Jones St & Wells St intersection | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100029005 | View Doc | |
| 200 | 02/03/2015 | Master spreadsheet - residential results with arsenic & lead EPC details & property addresses (XLSX file) | R09: Murray, Twohy (C H 2 M Hill, Inc) | 100029007 | View Doc | |
| 201 | 07/10/2014 | Presentation: Bioavailability of arsenic in soil (6 presentation slides) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100029008 | View Doc | |
| 202 | 07/31/2014 | Map: Estimated bioavailability of arsenic in soil (based on IKS site-specific regression), 17 x 11 in, color, 1.5 in = 1200 ft | R09: (Environmental Protection Agency) | 100029009 | View Doc | |
| 203 | 07/25/2014 | Spreadsheet - Bioavailability of arsenic in soil (samples 2008-2014), location map, risk-based calculations for arsenic in soil | 100029010 | View Doc | ||
| 204 | 08/01/2014 | Spreadsheet - Bioavailability of arsenic in soil (samples 2008-2014), risk-based calculations for arsenic in soil | 100029011 | View Doc | ||
| 205 | 04/25/2012 | Field rpt & preliminary results - 2nd XRF (X-Ray fluorescence) sampling (4/16-4/19), w/attch | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100029012 | View Doc | |
| 206 | 05/04/2012 | Spreadsheets (3) - final 2nd phase EPA field XRF (X-Ray Fluorescence) data, Apr 2012 | R09: Nagle, Greg (Environmental Protection Agency - Region 9 Laboratory) | 100029014 | View Doc | |
| 207 | 05/08/2013 | Field rpt, 4/29-5/2/13, Phase 3 EPA staff X-Ray Fluorescence sampling event | R09: (Environmental Protection Agency - Region 9) | 100029015 | View Doc | |
| 208 | 05/17/2012 | Oversize Map: Preliminary arsenic & lead background sample concentrations, samples collected Jan 2012, 34 x 22 in, color, 2 in = 400 ft | 100029016 | View Doc | ||
| 209 | 07/03/2013 | Spreadsheet - Phase 3 Apr-May 2013 data (for 4 metals) & sampling coordinates | R09: Searles, Zizi (Environmental Protection Agency - Region 9) | 100029017 | View Doc | |
| 210 | 07/16/2013 | Spreadsheets (4) - Phase 3 XRF (X-Ray Fluorescence), A-B all metals results Apr-May 2013 | R09: Husby, Peter (Environmental Protection Agency - Region 9) | 100029018 | View Doc | |
| 211 | 06/20/2013 | Maps (16): Phase 3 v12 maps QC initial (PPTX format) | 100029019 | View Doc | ||
| 212 | 06/06/2013 | Spreadsheets (2) - Phase 3 sampling results, 4 metals | R09: Husby, Peter (Environmental Protection Agency - Region 9) | 100029020 | View Doc | |
| 213 | 02/22/2012 | Oversize Map: XRF data - Arsenic & Lead concentrations (Jan 2012), 34 x 22 in, color, 3 in = 400 m | 100029022 | View Doc | ||
| 214 | 02/22/2012 | Oversize Map: XRF data - Arsenic & Lead ratios (Jan 2012), 34 x 22 in, color, 3 in = 400 m | 100029023 | View Doc | ||
| 215 | 01/10/2012 | Memo: XRF field analytical support at site (Jan 10-11), w/field rpt, w/o compact disc | R09: Husby, Peter (Environmental Protection Agency - Region 9 Laboratory) | R09: O'sullivan, Monika (Environmental Protection Agency - Region 9) | 100029033 | View Doc |
| 216 | 06/20/2019 | Ltr: EPA response to ADEQ comment ltr 1/17/18 on final RI rpt, w/attch | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: Peterson, John (AZ Dept of Environmental Quality - Federal Projects Unit) | 100029034 | View Doc |
| 217 | 07/01/2008 | Technical Memo: Interim measures, RI/FS, rev 00 | R09: (E A Engineering, Science, & Technology, Inc) | R09: (Environmental Protection Agency - Region 6) | 100029035 | View Doc |
| 218 | 05/21/2012 | Blood lead screening summary (screening held at Humboldt Elementary School, 4/19/12 & 5/21/12) | R09: Knowles, Robert (US Dept of Health & Human Services - Agency for Toxic Substances & Disease Registry), R09: Botsford, Jennifer (AZ Dept of Health Services) | 100029036 | View Doc | |
| 219 | 10/21/2014 | Memo (Revised): Discusses 5 matters re risk assessment to be resolved so that derivations of EPCs & risks fr individual yards can proceed, w/attchs | R09: (Environmental Protection Agency - Region 9) | 100029037 | View Doc | |
| 220 | 09/01/1917 | Oversize Map: Humboldt, AZ, color, 22.6 x 26.75 in, 1 in = 30 ft | R09: (Sanborn Map Co) | 100029038 | View Doc | |
| 221 | 09/01/1917 | Oversize Map: Humboldt, AZ (Southwest Metals Co), color, 22.6 x 26.75 in, 1 in = 30 ft | R09: (Sanborn Map Co) | 100029039 | View Doc | |
| 222 | 06/01/1931 | Oversize Map: Humboldt, Yavapai County, AZ, 17 x 20 in, color, 1 in = 40 ft (Sep 1917, corrected Jun 1931) | 100029040 | View Doc | ||
| 223 | 07/01/2008 | Air quality monitoring plan, RI/FS (rev 00), w/attchs A & B | R09: (E A Engineering, Science, & Technology, Inc) | R09: (Environmental Protection Agency - Region 6) | 100029235 | View Doc |
| 224 | 12/23/2013 | QAPP Amendment 3, w/attchs 1 & 2 | R09: (Lockheed Martin Corp) | R09: (Environmental Protection Agency - Environmental Response Team) | 100029236 | View Doc |
| 225 | 12/07/2012 | Standard operating procedure - Operation of NITON XLt792YW field portable X-Ray Fluorescence instrument (SOP 1720, rev 2.0) | R09: (Lockheed Martin Corp) | 100029237 | View Doc | |
| 226 | 12/15/2014 | Standard operating procedure - Digestion & analysis of metals by Inductively Coupled Plasma / Atomic Emission Spectrometry (ICP-AES) (SOP 1811, rev 5.0), w/approval & change form | R09: (Lockheed Martin Corp) | 100029238 | View Doc | |
| 227 | 12/15/2014 | Standard operating procedure - Digestion & analysis of mercury by Cold-Vapor Atomic Absorption (CVAA) (SOP 1832, rev 4.1), w/approval & change form | R09: (Lockheed Martin Corp) | 100029239 | View Doc | |
| 228 | 09/14/2002 | Standard operating procedures - Sample documentation (SOP 2002, rev 0.0) | R09: (Lockheed Martin Corp) | 100029240 | View Doc | |
| 229 | 04/16/2001 | Standard operating procedures - Groundwater well sampling (SOP 2007, rev 0.0) | R09: (Lockheed Martin Corp) | 100029241 | View Doc | |
| 230 | 07/11/2001 | Standard operating procedures - Soil sampling (SOP 2012, rev 1.0) | R09: (Lockheed Martin Corp) | 100029242 | View Doc | |
| 231 | 02/15/2002 | Standard operating procedures - Surface water sampling (SOP 2013, rev 0.0) | R09: (Lockheed Martin Corp) | 100029243 | View Doc | |
| 232 | 11/02/2001 | Standard operating procedures - Sediment sampling (SOP 2016, rev 0.0) | R09: (Lockheed Martin Corp) | 100029244 | View Doc | |
| 233 | 11/17/1994 | Standard operating procedures - Plant biomass determination (SOP 2034, rev. 0.0) | R09: (Lockheed Martin Corp) | 100029245 | View Doc | |
| 234 | 10/19/1994 | Standard operating procedures - Terrestrial plant community sampling (SOP 2037, rev 0.0) | R09: (Lockheed Martin Corp) | 100029246 | View Doc | |
| 235 | 05/28/2013 | Standard operating procedures - Manual water level measurements (SOP #2043 - Rev 1.1) | R09: (Lockheed Martin Corp) | 100029247 | View Doc | |
| 236 | 09/06/2001 | Standard operating procedures - Monitor well development (SOP #2044, rev 0.1) | R09: (Lockheed Martin Corp) | 100029248 | View Doc | |
| 237 | 07/12/2001 | Standard operating procedures - monitor well installation (SOP #2048, rev 0.0) | R09: (Lockheed Martin Corp) | 100029249 | View Doc | |
| 238 | 04/15/2003 | Standard operating procedures - Benthic macroinvertebrate sampling (SOP #2054, rev 0.0) | R09: (Lockheed Martin Corp) | 100029250 | View Doc | |
| 239 | 07/02/2002 | Standard operating procedures - Logbook documentation (SOP #4001, rev 0.0) | R09: (Lockheed Martin Corp) | 100029251 | View Doc | |
| 240 | 11/23/2021 | Quarterly updates EPA provided to Town of Dewey-Humboldt fr Dec 2019 to Nov 2021 to be placed on Town’s special website | R09: (Environmental Protection Agency - Region 9) | 100029253 | View Doc | |
| 241 | 01/13/2022 | Email: Responds to email re conference call on 1/11/22 - discusses proposed plan process & town's environmental attorneys, w/history | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | R09: Bigelow, Kay (Bigelow Law Offices (Attorneys)) | 100029254 | View Doc |
| 242 | 01/20/2022 | Draft text for Jan 2022 email update re site | R09: Sanchez, Yolanda (Environmental Protection Agency - Region 9) | 100029255 | View Doc | |
| 243 | 04/11/2022 | Oversize Map: Exhibit of survey, 36 x 24 in, b&w, 1 in = 100 ft | R09: Dickson, Lance (Arizona Surveying & Mapping) | 100029256 | View Doc | |
| 244 | 09/08/2011 | Newsclip: EPA plans partial Superfund clean-up of contaminated soil this fall - Dewey-Humboldt residents worry about contamination, too (9/5/11 article), w/reader comments posted 9/6-9/7/11 | R09: Hinshaw, Matt (Prescott Daily Courier, The (Newspaper)) | 100029257 | View Doc | |
| 245 | 09/03/2008 | Press Release (Draft): EPA Environmental News - EPA adds site to national Superfund list | R09: Arcaute, Francisco (Environmental Protection Agency - Region 9) | 100029258 | View Doc | |
| 246 | 04/01/2010 | Article (Draft): EPA update for May 2010 Town of Dewey-Humboldt Newsletter | R09: Cooper, David (Environmental Protection Agency - Region 9) | 100029259 | View Doc | |
| 247 | 12/10/2015 | Article: Multimedia exposures to arsenic & lead for children near inactive mine tailings & smelter site (Environmental Research, v 146 (2016), pp 331–339) | R09: Loh, Miranda (Univ of Arizona, Tucson - Dept of Community, Environment & Policy) | 100029261 | View Doc | |
| 248 | 01/22/2016 | MESH (Metals Exposure Study in Homes) summary of study results (Univ of AZ Superfund Research Program), w/TL to participants | R09: (Univ of Arizona - Superfund Research Program) | 100029262 | View Doc | |
| 249 | 05/14/2009 | Sampling rpt, former Ironite Products Co facility, w/appendices A & C, w/o App B | R09: (Brown & Caldwell) | R09: (North American Industries) | 100029263 | View Doc |
| 250 | 10/02/2017 | (Redacted) Mtg Notes: Dewey-Humboldt Town Council Meeting - discussion with interim town manager Lee Elliott, EPA presentation on site (8/15/17), w/o attchs | R09: Sanchez, Yolanda (Environmental Protection Agency - Region 9) | 100029299 | View Doc | |
| 251 | 06/28/2019 | (Redacted): Email: Follow-up items fr 6/12/19 meeting (ADHS health consultations), w/history | R09: Sanchez, Yolanda (Environmental Protection Agency - Region 9) | R09: Moreno, Denise (Univ of Arizona - Dept of Soil, Water & Environmental Science) | 100029496 | View Doc |
| 252 | 06/28/2021 | (Redacted) Email: Announces 7 part recorded presentation series & provides link to flyer for presentations, w/image of flyer | R09: Sanchez, Yolanda (Environmental Protection Agency - Region 9) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100029498 | View Doc |
| 253 | 01/07/2022 | (Redacted): Spreadsheet - email listserv contact list | R09: Sanchez, Yolanda (Environmental Protection Agency - Region 9) | 100029500 | View Doc | |
| 254 | 11/08/2013 | Map: Zone for mailing list | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100029503 | View Doc | |
| 255 | 08/12/2022 | Technical Memo: Refined Background Threshold Value (BTV) calculations for arsenic at site, w/attchs | R09: (Tetra Tech, Inc) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100029513 | View Doc |
| 256 | 08/26/2022 | Email: Ecological risk outcomes in Agua Fria River of proposed remedies at site | R09: Black, Ned (Environmental Protection Agency - Region 9) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100029637 | View Doc |
| 257 | 10/07/2022 | Ltr: Provides ADEQ concurrence for public release of Sep 2022 FS & list of critical-to-quality concerns | R09: Kane-devries, Katelyn (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100030315 | View Doc |
| 258 | 11/21/2019 | (Redacted) Email: Discusses ADHS health consultations for site (ref Walker Mining District well water study 2007 ATSDR), w/history | R09: Sanchez, Yolanda (Environmental Protection Agency - Region 9) | R09: Geiger, Sandy | 100031801 | View Doc |
| 259 | 06/19/2020 | Ltr: Interim removal action rpt, w/attachments A & B | R09: Mehl, Rick (Weston Solutions, Inc) | R09: Musante, Jason (Environmental Protection Agency - Region 9) | 100031943 | View Doc |
| 260 | 02/17/2023 | Ltr: Review of draft proposed plan layout and redline copy, dated 1/11/23 and 1/24/2023 - concurrence with proposed Alternative 3B, w/attch | R09: Kane-devries, Katelyn (AZ Dept of Environmental Quality - Federal Projects Unit) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100032035 | View Doc |
| 261 | 02/13/2023 | Technical Memo: Residential response action supplement to FS (final), w/attchs A & B | R09: Rotter-sieren, Mitchell (Tetra Tech, Inc) | R09: Dhont, Jeffrey (Environmental Protection Agency - Region 9) | 100032036 | View Doc |
| 262 | 03/01/2023 | Fact Sheet: EPA recommends site cleanup option with 2023 proposed plan | R09: (Environmental Protection Agency - Region 9) | 100032065 | View Doc | |
| 263 | 03/01/2023 | Proposed plan for Iron King Mine – Humboldt Smelter Superfund Site | R09: (Environmental Protection Agency - Region 9) | 100032066 | View Doc | |