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19 of 30 A R S - \So3 C-8 DATA SUMMARY REPORT CONSENT ORDER GWR-2001-019 DuPont Washington Works Facility and Local, Letart And Dry Run Landfills February 2003 Project No. 7423 18983635 Prepared by t j ON NIVlNQQ CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 000008 OEPA 4053 DuPont Engineerifig Barley M ill Plaza i Bldg, 27 Lancaster Pika & Rte. 141 Wilmington, DE 19805 DuPont Engineering February 5,2003 David P.

P # te 7 I UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 F V Z -O S o l- /3 7/ M arch 20, 2001 FYI-00-00137B a 9 6 - ,0 3 OFFICE OF PREVENTION.

AlU>-1(,*7 FO-145 IK TEFLON OBJECTIVES: DETERMINE THE PATE OP P C -1 4 3 HT THE TEFLON PEOCESS.

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3M FLUOROCHEMICAL SUBMISSIONS February, 2002--May, 2004 BACK TO DISCLAIMER CHOOSE TO SEARCH BY CHEMICAL STUDY TYPE OR BY DATE Submissions Arranged by Chemical Study Type Submissions Arranged by Date

ANALYTICAL METHOD VALIDATION FOR THE DETERMINATION OF PERFLUOROOCTANESULFONATE, POTASSIUM SALT (PFOS) IN PLANT TISSUES WILDLIFE INTERNATIONAL, LTD.

Final Summary Report Study Title Extended Recovery Study Following a 26-W eek Capsule Toxicity Study with Perfluorooctane Sulfonic Acid Potassium Salt (PFO S; T-6295) in Cynomolgus Monkeys Author Peter J.

3M ENVIRONMENTAL LABORATORY REPORT NO.

INTERIM REPORT #25 - Analysis of Ground Water Samples STUDY TITLE Analysis of Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program DATA REQUIREMENTS EPA TSCA Good Laboratory Practice Standards 40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE November 22,2006 PERFORMING LABORATORY Exygen Research 3058 Research Drive State College, PA 16801 Phone:814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-01-B-10 St.

SEVERN TRENT STL STL Chicago 2417 ond Street University Park, IL 60466 Tel: 70S 534 5200 Fax: 70S 534 5211 www.stl-inc.com SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB -NUMBER:- 244402'"' ' P r e p a r e d 'F o r : W e sto n Solutions.,...

Corporate Health Physics CCoorrppoorraattee POrcocduupcattiRonesaploMnseidbiicliintye Corporate Toxicology 3M Medical Department P3SOMt.

A R V Lk'W l PFOS: AN EARLY LIFE-STAGE TOXICITY TEST WITH THE FATHEAD MINNOW (.Pimephales promelas) FINAL REPORT WILDLIFE INTERNATIONAL LTD.

July 30,1998 AR IIQ-0IH7 'ckn Fax to: Dr.

Experiment No.: Conducted At: Dates Conducted: Conducted By: ARXtG-0 237 Primary Skin Irritation Test with T-3608 in Albino Rabbits 0984EB0368 Pathology and Toxicology Riker Laboratories, Inc.