Memo To:

From:

Date:

Re:

File, West Lake ~911

Dan Gravatt, RPM i~ January 20, 2012

U.S. Enviromnentall Protection Agency ,LR.egion 7

Errata Page for the \Vest Lake Landfill Supplemental Feasibility Study

Attached to this memo is a replacement page for Figure 2 of the ReYised SFS which depicts the West Lake Landfill Site and surrounding properties. The page contained in the ReYised SFS erroneously labeled the facility across the street from the Allied V/aste Sen-ices Landfill ,Office as Kirchner Block & Brick. The correct lapel for this facility is "Hussman."

ENGINEERING MANAGEMENT SUPPORT INC.

7220 West Jefferson Avenue, Suite 406 Lakewood, CO 80235

January 6, 2012

Daniel R. Gravatt Remedial Project Manager Missouri/Kansas Remedial Branch Superfund Division U.S. Environmental Protection Agency - Region 7 901 N. 5th Street Kansas City, KS 66101-2907

Telephone (303) 940-3426 Telecopier (303) 940-3422

- .L

SUBJECT: Revised Figure 2 for the Supplemental Feasibility Study Report Radiological-Impacted Material Excavation Alternatives Analysis West Lake Landfill Operable Unit 1, Bridgeton, Missouri

Dear Mr. Gravatt,

On behalf of Cotter Corporation (N.S.L.), Laidlaw Waste Systems (Bridgeton), Inc., and Rock Road Industries, Inc., and with funding provided by the United Sates Department of Energy (the "Respondents"), enclosed please find a revised version of Figure 2. We discovered after submittal of the final SFS report that the property across the street had incorrectly been identified as Kirchner Block and Brick rather than Hussrnann. This corrects that figure.

If you have any questions or need additional copies, please do not hesitate to contact me.

Sincerely, ENGINEERING MANAGEMENT SUPPORT, Inc.

Enclosure

Revised Supplemental Feasibility Study Report West Lake Landfill OU-I December 16, 2011 Page2

Distribution:

Rich Kapuscinski- USEPA OSRTI (2 copies) Shawn Muenks - Missouri Dept of Natural Resources (2 copies) Victoria Warren - Allied Waste Industries, Inc. Bill Beck - Lathrop & Gage, LLP Jessica Merrigan - Lathrop & Gage, LLP Kate Whitby - Spencer Fane Britt & Browne Charlotte Neitzel - Holme Roberts & Owen (4 copies) Christina Richmond - USDOJ Daniel Feezor - Feezor Engineering, Inc. Michael Bollenbacher - Auxier & Associates)

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Source: MyTopo.com Date of Photograph 8/9/2007

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Figure 2

Site and Surrounding Properties

West Lake Landfill OU-1 Supplemental Feasibility Study

EMSI Engineering Management Support, Inc.