Eastern Michaud Flats Contamination

Eastern Michaud Flats Contamination

United States Environmental Protection Agency


	Region 10 Superfund: Eastern Michaud Flats Contamination

Serving the people of Alaska, Idaho, Oregon, Washington and 270 Native Tribes

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Site Summary

FMC facility after it closed and before buildings were demolished.

The Eastern Michaud Flats Superfund Site (aka Simplot or FMC), located northwest of Pocatello, Idaho, covers approximately 2,530 acres. Two adjacent phosphate ore processing facilities, the FMC Corporation and the J.R. Simplot Company Don Plant make up the superfund site. These processing facilities operated from the early 1940’s until the FMC facility closed in December of 2001. The Simplot Don Plant facility is still an active operating facility.

In 1998, the initial Superfund ROD was issued as was a RCRA Consent Decree for portions of the FMC facility. A Supplemental RI/FS is underway for the FMC portion while Simplot groundwater remediation is ongoing. Most recently, a Unilateral Order has been issued to FMC for a time critical removal action to control toxic gases emitting from a closed and capped RCRA hazardous waste disposal pond.

Major site documents:

Superfund Decision Documents:

1998 Superfund Record of Decision (ROD) ID Number: EPA/541/R-98/034 Text Only (PDF) (285K)- June 8, 1998
1998 Superfund Record of Decision (ROD) ID Number: EPA/541/R-98/034 with Maps/Tables (PDF) (227 pp. 15MB) - June 8, 1998
1998 ROD color Figures (PDF) (9 pp. 6MB)
2003 Administrative Order on Consent (PDF) (28 pp. 980K)
2006 Unilateral Order to FMC to install a gas treatment system (7.4mb, 37pp, pdf)
- Appendix A, Statement of Work (109 kb, 10pp, pdf)
- Appendix B, Action memo (3.3mb, 13pp, pdf)
2009 Proposed Plan to Amend the Record of Decision for the Simplot Operable Unit (PDF) (42 pp. 3.9MB)

Superfund Technical Documents:

Official Administrative Record Table of Contents for the Eastern Michaud Flats Superfund Documents (PDF) (2 pp. 19K)
Official Administrative Record Index for the Eastern Michaud Flats Superfund Documents (PDF) (111 pp. 433K)
Official Administrative Record of Time Critical Removal Action Documents (PDF) (2 pp. 17K)

FMC Supplemental Remedial Investigation and Feasiblity Study (RI/FS):
- Supplemental Remedial Investigation Volume 1: Report (PDF) (586 pp. 25MB) Note: This document is large and may take over 30 minutes to download on a 56K connection.
  - To receive the entire Supplemental Remedial investigation including Volume 2 please visit any repository location or contact Kira Lynch (lynch.kira@epa.gov) (208) 282-4326 for a DVD.
- Groundwater Current Conditions Report (PDF) (429 pp. 10.8MB)
  - Tables and Figures (PDF) (115 pp. 12.6MB)
  - Appendices (PDF) (890 pp. 24.3MB)
- Statement of Work - October 9, 2003 (20 page 159 KB. pdf file)
  - Figure 1 Map (1 page 96 KB .pdf file)
  - Figure 2 Decision Tree (1 page 47 KB .pdf file)
Simplot Draft Cleanup Agreements:
Simplot Don Facility is still an active operation.
- 2002 JR Simplot Consent Decree (PDF) (82 pp. 2.7MB)
  - Appendix A: EMF Record of Decision (PDF) (227 pp. 23MB)
  - Appendix B: Statement of Work (PDF) (31 pp. 1MB)
- 2007 Annual Report on the Groundwater Extraction System (PDF) (81 pp. 3.9MB)
- 2006 Annual Report on the Groundwater Extraction System (PDF) (72 pp. 3.2MB)
Other Documents:
- Evaluation Of Water Quality Impacts Associated With FMC and Simplot Phosphate Ore Processing Facilities, Pocatello, Idaho (PDF) (112 pp. 4.9MB) - IDEQ, 2004
- Ecological Risk Assessment , July 1995 (PDF) (390 pp. 12MB)

Resource Conservation and Recovery Act (RCRA) Cleanup Actions:

Additional documents

Fact Sheets

February 2009 - Simplot OU Record of Decision Change Fact Sheet (PDF) (2 pp. 79K)
June 2008 - Fact Sheet and July Public Meeting Notice (PDF) (4 pp. 157K)
December 2006 - EPA orders FMC to address gases from former waste pond (114kb, .pdf, 2pp)

Public Meetings

Presentation from Recent Public Meetings March 17 and 18, 2009 (PDF) (35 pp. 3.14MB)
July 25, 2008 Public Information Meeting Presentations (PDF) (39 pp. 3MB)

Southeast Idaho Update Newsletter

Spring 2006 (PDF) (4 pp. 913K)
Autumn 2003 (PDF) - (4 pp. 76K)
Spring 2002 (PDF) (6 pp. 353K)
Fall 2001 (PDF) - (5 pp. 291K)
Summer 2001 (PDF) - (5 pp. 423K)
August 2000 (PDF) - (8 pp. 40K)
July 2000 (PDF) - (6 pp. 40K)

Information Repository Locations:
Information and technical documents about this site are available for public review at the following locations during regular business hours.

Idaho State University Library

Government Documents
850 South 9th Avenue
Pocatello, Idaho 83209
(208) 282-3152

Shoshone-Bannock Library

Tribal Business Center
Pima Drive and Bannock Avenue
Fort Hall, Idaho 83203
(208) 478-3882

EPA Region 10 Superfund Records Center

1200 Sixth Avenue, Suite 900, ECL-076 (7th Floor)
Seattle, WA 98101
(206) 553-4494

	Site Information
	Site Progress Profile Site Summary (NPL PAD) RCRA Site Summary Pond 16 Removal Action Decision Documents Technical Documents Fact Sheets Photo Gallery Site Map Information Repository Locations Freedom of Information Act (FOIA) Requests Contacts: Project Manager: Kira Lynch (lynch.kira@epa.gov) (206) 553-2144, or toll-free at 1-800-424-4372 Community Involvement Coordinator (Pocatello): Sue Skinner (skinner.susan@epa.gov) (208) 282-4326

	National Superfund Information
	EnviroMapper National Superfund Website Site Information Where You Live

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	Cleanup Timeline
	1990 - Eastern Michaud Flats placed on the Superfund National Priorities List 1991 - Superfund Administrative Order on Consent requiring a Remedial Investigation/Feasibilty Study (RI/FS) 1998 - Superfund Record of Decision (ROD) for all 3 operable units of the site RCRA Consent Decree with FMC for Hazardous Waste/Regulated Activities 2001 - December, FMC closes phosphorus production facility 2002 - Superfund Consent Decree with Simplot for remedial actions at the Don Plant Unit 2003 - Superfund Administrative Order on Consent with FMC for Supplemental Remedial Investigation/Feasibility Study of FMC Facility Unit 2005 - Supplemental Remedial Investigation (SRI) Update Memorandum for FMC Unit (included all Site data that either was not available during the original RI/FS or may have been excluded because the facility was still operating) 2006 - December, Unilateral Order under CERCLA to FMC for Pond 16 S removal action. 2007 - May, Supplemental RI Work Plan Approved Summer/Fall Supplemental RI field work for FMC Unit completed 2008 - (Projected) Spring, Pond 16 S Removal Action, Gas Extraction Treatment System constructed and operational Spring, Off Plant additional studies needed defined Spring, SRI data validated and evaluated for SRI Report Summer, FMC to Submit to EPA SRI Report and Draft FS Summer, EPA with PRPs to hold Public Informational Meetings Summer, Simplot to submit Phase 2 Groundwater Extraction Field Report Fall, Simplot Draft of Final Groundwater Extraction Remedial Action Work Plan (RAWP)

Related Links:

[ Main Cleanup | Brownfields ]
[ Superfund | FOIA | Records Center ]

Point of contact: Sue Skinner
E-Mail: skinner.susan@epa.gov
Phone Number: (208) 282-4326
Last Updated: 07/13/2009