Document MGx6Gn56eZB7M4JpJBjZ9nNbk

Idhfe International, Ltd. ECOTOXICOLOGY & ANALYTICAL TESTING SERVICES November 27, 2000 Ms. Susan A. Beach 3M Corporation Environmental Laboratory 935 Bush Avenue 3M Building 2-3E-09 P.O. Box 33331 St. Paul, Minnesota 55133 Dear Susan: Enclosed please find Addendums for the following studies: 1. NoN-GLP STUDY: DETERMINATIONOF THE SOLUBILrrYOF PFOS IN WILDLIFE INTERNATIONAL, LTD. FRESHWATER, FRESHWATER ALGAL MEDIUM, AND' SALTWATER WILDLIFEINTERNATIONALL, TD. PROJECTNO.: 454C-101-1 3MLAB R_QUESTNO. U2723 2. DETERMINATION OF THE WATER SOLUBILITY OF PFOS BY THE SHAKE FLASK , METHOD WILDLIFE INTERNATIONAL, LTD. PROJECT NO.: 454C-107 3M LAB REQUESTNO. U2723 Ifyou have any questions, please let me knowl RLV/cyw8/'3m Enclosures Raymond L. Van Hoven, Ph.D. Scientist 8598CommerceDrive EastonM, aryland21601-Tel.410-822-8600Fax410-822-0632 E-maiel cotox@wildlifeinternational.com EuropeanOnce: BergkampwegI 7231CLWamsveld-The Netherlands-Tel.31(0) 575- 573848 Fax.31(0) 575 - 574813 E-maila: leopoldOwoddonline.nl