# 3M 3M Environmental, Health and Safety Operations 

### 3M Center, Building 0224·05-W-03 St. Paul, MN 55144·1000 

# AUG 02 2012 July 27, 2012 Federal Express Director, Chemical Control Division (7405M) Office ofPollution Prevention and Toxics (OPPT) Room 4146 EPA East U.S. Environmental Protection Agency 120I ConstitutionAvenue, NW Washington, DC 20460 Attention: DocketNo. OPPT 2004-0112 PFOA Site-Related Environmental Assessment Program - .. -'' ' - :..,.

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## Subject: Status Report Pursuantto the Memorandum ofUnderstanding between and 3M Company andDyneon LLC dated October 2004 Dear Siror Madam, OnNovember 19, 2009, U.S. EPA approvedthe Phase 3Work Plan underthe subject Memorandum ofUnderstanding (MOU). Accordingly, and perthe MOU, 3M and Dyneonhave resumed the submittal ofquarterly status reports. Enclosed for your information and records are two paper copies ofthe April I to June 30, 2012 report (one includes acopy ofthe raw data) and one electronic version thathas been copied to a CD (also including the raw data). Two paper copies ofthe report (one with a copy ofthe raw data) and aCD (also including the raw data) have also been sentto the referenced docket as noted inthe cc listbelow. Ifthere are any questions or comments concerning this matter, please contactme at 651 737-3570. Sincerely,

# ~~] f!ti!ffxi!h1i Gary ohenstein Man ger, Environmental & 

## Regulatory Affairs Environmental, Health and Safety Operations 3M- Building 224-5W-03 St. Paul, MN 55144 651 737-3570 gahohensteinrdmmm.com 

# CONTAtNS NO CB\

### cc: GloriaDavis- Mail Code 740SM (w/o attachments) TSCA Confidential Business Infonnation Center (7407M) EPA East- Room 6428 Attn: EPA-HQ-OPPT-2004-0112 1201 ConstitutionAvenue, NW Washington, DC 20004-3302 GlendaDean

- AL Department ofEnvironmental Management

EnclosuresFrom: (610) 701-3061 D. R. Cosby WESTON SOLUTIONS, INC 1400 WESTON WAY BUILDING 5-2 WEST CHESTER, PA 19380 Origin ID: BIGA

J12201207160325 SHIP TO: (610)701-3787 BILL SENDER 

### Ms. Gloria Davis TSCA Confidential Business Info Ctr EPA-HQ-OPPT-2004-0012 ·EPA East 1201 Constitution Ave NW- Room 6428 Washington, DC 20004

After printing this label: Ship Date: 30JUL12 ActWgt 15.0 LB CAD: 2846628/INET3300 DeliveryAddress Bar Code


### 1111111111111111111111111111 Ref# 02181009056 Invoice# PO# Dept#**~** 

### 7938 4129 7658**~** 

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TUE- 31 JUL A1 

## PRIORITY OVERNIGHT 

# 20004 

# 19 RDVA DC-US 

# DCA**515G11~701M44**
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### https://www.fedex.com/shipping/html/en//PrintiFrame.html 7/27/2012