1p. 31 October 2003 To: Mary F.

BACK TO MAIN 3M Environmental Laboratory Report No.

BACK TO MAIN STABILITY IN WATER (HYDROLYSIS) TEST SUBSTANCE Identity: Remarks: N-methylperfluorooctane sulfonamidoethanol; may also be referred to as 2(N-Methylperfluoroctanesulfonamido)-ethyl alcohol, N-MeFOSE Alcohol, FC-790, or FM-3925. (1-Octanesulfonamide, N-methyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-, CAS # 24448-09-7). 3M production lot number was not noted.

BACK TO MAIN Study Title Growth and Reproduction Toxicity Teat with L-13492 and the Freshwater Alga, SelenastTum caprlcornutw Data RequirePsntr Guideline Uumber U.S.

BACK BIODEGRADATION TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or C8F17SO3-K+. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: PFOS was a white powder.

BACK BIODEGRADATION TEST SUBSTANCE Identity: Remarks: N-Ethylperfluorooctanesulfonamide; may also be referred to as NPFOSA, EtPOSA, F-6309, or FX-12. (1-Octanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-ethyl-, CAS # 415150-2) N-EtFOSA was a white solid.

BACK TO MAIN BIODEGRADATION STUDY REPORT The Aerobic Biodegradation of N-EtFOSE Alcohol by the Microbial Activity Present in Municipal Wastewater Treatment Sludge Thursday, November 02, 2000 PROJECT NUMBER 3M Project ID: LIMS E00-2252 Pace Contract Analytical Project ID: CA058 Pace Proposal ID: 000511.1 PRINCIPAL ANALYTICAL INVESTIGATOR Cleston C.

3 M Company Psge 1 of 121 FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

3M Specialty Materials February 13, 2003 3M Center St.

Toxicological Summary PFOS Dietary Chronic Pilot Reproductive Study: Northern Bobwhite Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-potassium salt.

MIN 312/014272 PERFLUOROOCTANESULFONYL FLUORIDE (POSF; T-7661.1) PRELIMINARY TOXICITY STUDY BY INHALATION ADMINISTRATION TO CD RATS FOR 1 WEEK Sponsor 3M Center, 3M Corporate Toxicology, Building 220-2E-02, St Paul, MN 55133-3220, USA.

ADIETARY LCS0STUPDroYs:WITH THE MALLARD WILDLIFE INTERNATIONAL LTD.

8-2 Telomer B Alcohol: Developmental Toxicity Study in Rats TRADE SECRET DuPont-10157 AR226-1939 Study Title 8-2 Telomer B Alcohol: Developmental Toxicity Study in Rats Laboratory Project ID: DuPont-10157 RECEIVED OPPT NCIC 2005 MAR -4 PM 12:01 TEST GUIDELINES: United States (U.S.)

~~ E .

TestResults AR226-2131 file:///Cl/WINDOWS/TBMP/Mro6mat8C...7-21-81 thru 8-27.-01 80pages.htm ^ Test Results Sampio Date Range Concanttatlon Range Action Level Industrial Hygiene 7/21/81 8/37/01 100% Sample Dt sample* Duration Type Employee Name Pers BTO: LOCt 08 TEFLON 002 A/S- MONOMERS SOUTH TANK FARM - GENERAL 9/22/82 38001 331 Z B/22/82 39002 331 Z 9/22/62 39003 327 2 9/22/82 39004 335 Z 9/22/82 39005 328 2 9/22/82 39006 336 Z Chemical Cone Unit Percent C-8/FC-143 C-8/FC-143 C-a/FC-143 C-8/FC-143 C-8/FC-143 C-8/FC-143 0.17 MPB 0.09 MPB <0.03 MPB 0.09 MPB <0.03 MPB 0.04 MPB 30.4% 16.1% 5.4% 16.1% 5.4% 7.1% BTO; 08 TEFLON LOC: 042 AC1DNEUT PIT-GENERAL 5/4/88 40895 1440 Z C-8/FC-143 <0.03 MPB 5.4% BTO: 08 TEFLON LOC; 045 B-162 ROOF 2nd Level- General &H&V Units 8/20/91 814 480 A 11/4/93 2310 450 A 7/9/97 7137 362 A 7/9/97 7138 362 A 7/21/97 7139 370 A C-B/FC-143 0.341 MPB 60,9% C-a/FC-143 <03 MPB 5.4% C-8/FC-143 0.1 MPB 0 17.9% ^ C-8/FC-143 0.13 MPB g 23.2% C-8/FC-143 0.15 MPB 28.8% 1 of 157 8/28/2001 4:46 PM EID140226 TesfResults 7/21/97 7219 371 A 7/21/97 7225 368 A 7/22/97 7140 !