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AR226-2002 99 \ '^^-"' C-8 TRENDS IN AIR T&r i^ r<-P'2.2.1 P610 ^^ 'tfrrl' '"'^"'^ P^ P!'

TestResults AR226-2119 file:///C|/WINDOWS/TEMP/C-8 Z 2-26-73 (luu 8-12-Sl.hto TestResults Sample Date Range Concentration Range Action Level Industrial Hygiene 2/26/73 OT2/81 100% Sample Dt Sample # Duration Type Employee Name BTO : 04 POWER & SERVICES LOG: 074 INCINERATOR AREA-GENERAL 4/15/81 52165 Z Per?

AR226-2476 &-14.00 Jim: Per your request for assistance in wording a letter to your customers, here is a draft that may be helpful. 1(1 can be of further assistance, you can reach me at 863-2513.

AR226-2518 OHIO RIVER WATER SAMPLING RESULTS DUPONT WASHINGTON WORKS FACILITY AND THE LETART LANDFILL Date; November 2002 Project No,: D6WW7423 18983635J4000 18983632.00021 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Bartey Mill Plaza, Building 27 Wllmlngton, Delaware 1980S ASB019657 EID630089 I 1 1 1 1 1 1 1 ...I Il^iTi^1' 1 1 1 1 1 1 1 <

AR226-2557 - , , -<9 Andrew S Hartten 05/23/2001 05:21 PM To: Robert L Ritchey/CUOuPont@OuPontA, Hson A Crane/AE/DuPont@DuPont, George Woytowich/CL/DuPont@OuPont cc: Subject: Information on Washington Works Facility I received this today.

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EPA Activities/Issues on Fluorosurfactants Mary F.

GLP10-01-02; Interim Report 29 - Analysis of PFBS, PFHS, and PFOS in Groundwater Samples Collected at Off-Site Wells in Decatur, AL in March/April 2012 Study Title Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sediment for the 3M Decatur Phase 3 Site-Related Monitoring Program Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR Part 792 Study Director Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 P hone:610-701-3761 Author Susan W olf 3M Environmental Laboratory Interim Report Completion Date Date of signing Performing Laboratory 3M Environmental Health and Safety Operations Environmental Laboratory 3M Center, Bldg 260-05-N-17 St.

AR226-1030A039 BACK TO MAIN 3M Environmental Laboratory Report No.