r H Mt _ TRADE SECRET M ZZ6 -A 23 DuPont-12991 Study Title H-25767: Static, Acute, 96-Hour Screening Test with Rainbow Trout, Oncorhynchus mykiss Authors: Barbra D.

464 DuPont-l 1414 TRADE SECRET Study Title H-25134: Four-Week Inhalation Toxicity Study in Male Rats Test Guidelines: OECD Guideline for the Testing o f Chemicals Section 4: Health Effects, Number 412 (1981) Author: Linda A.

I AR226-3333 FLUOROPOLYMERS 81-4 PAGE 10 3* Measurement of Residual C-8 Fluorosurfactant Levels on Various Products - C.

AR226-3356 Effects of Fluorotelomer Products on the Bacterial Growth, Degradation of Organic Substances, and Microbial Population from Activated Sludge of a Domestic Sewage Treatment Plant Wana N.1.

y}R,6_ 3W* 000410 RUM- TEFLON FINE POWDER/DISPEKSION OPERATORS C-8 BLOOD SAMPLE RESULTS C-8 in Blood (ppm) First Sample Second Sample Change 26.0 20.0 -6.0 24.0 25.0 +1.0 11.0 8.2 -2,8 9.4 7.9 -1.5 8.2 6.5 -1.7 7.0 7.7 +0.7 6.9 5.9 -1.0 5.6 4.2 -1.4 ..,,4.4 4.3 ; 3.9 4.9 +0.5 5.6 +1.3 3.6 -0,3 3.6 2.7 -0.9 3.5 2.1 4 2.9 2.8 -0.1 2.8 2,8 0.0 2.6 2.4 -0.2 2.5 1.8 -0.7 2.5 2.5 0.0 2.1 1.6 -0.5 1.6 1.5 -0.1 1.5 1.2 -0.3 1.3 1.1 -0.2 JWR:Idr/10/19/83 Bays Between Samples 363 364 391 364 363 364 337 334 365 401 364 362 363 357 365 391 336 349 288 384 366 362 % Per Year Change -23 +4 -24 -16 -21 +10 -16 -27 +13 +27 -8 -25 -40 -3 0 -7 -28 0 -30 -6 -20 -15 000411 TEFLON FEP OPERATORS C-8 BLOOD SAMPLE RESULTS C-8 in Blood (ppm) First Sample Second Sample Change 7.5 6.6 -.9 4.5 3.7 - A 3.1 2.8 -.3 2.1 1.5 -.6 1.8 1.1 -.7 1.8 1,6 -.2 1.6 1,4 -.2 1.25 1.20 -.05 1.20 0.95 1.00 0.79 -.2 -.16 0.86 0.75 -.11 0.75 0.72 -.03 '*i o 00 0.52 0.44 0.51 0.48 -.03 0.42 0.39 -.03 0.41 0.46 +.05 0.38 0.36 -.02 Days Between Samples 362 380 384 364 364 392 393 171 333 391 565 364 365 337 445 363 363 o p-i a % Per Year Change -12 -17 -9 -29 -39 -12 , -9 -18 -7 -8 -4 -15 -6 -6 +12 -5 JWR:Xdr/10/19/8.3 000412 SHORT SERVICE OPERATORS C-8 BLOOD SAMPLE RESULTS Fitie Powder Last Saoule PPM .02 .19 .93 4.00 *** FEP Days in Job 61 212 375 603 .05 95 .05 124 .15 135 .05 165 .23 492 .66 266 PPM Per Year Change +.09 +.24 +.03 - .18 +.15 +.10 +.38 +.09 +.24 -.24 JWRldr 10/19/83 000413 HEW HIRES - TEFLON Date of First Sample 07/28/81 10/01/81 10/07/81 10/13/81 Date Hired 'C-8 Blood Level (ppm) 07/27/81 <0.007 08/03/81 0.009 04/20/81 0.007 04/20/81 : 0.015 Months on Plant Before First -8 Blood Test 0 2 5 1/2 5 3/4 JWR:Idr 10/19/83 000414

3RMeguCloartoproyraSteervTiocxeiscology and 3M Center, Building 0220-06-E-03 St.

3Afl A&2S16- $S7Z 3M ENVIRONMENTAL LABORATORY PROJECT NO.E05-0442 Analytical Report Definitive Study: Quantitative Screening of Commercial Lots of Human Serum Obtained in 2004 for Endogenous Fluorochemicals Using Solid Phase Extraction and Liquid Chromatography/Tandem Mass Spectrometry Laboratory Request Num ber EQ5-0442 Testing Laboratory 3M Environmental Health and Safety Operations 3M Environmental Laboratory' _________________ _ _ _____________________________________________ ;_________ _ 3M Environmental Laboratory Project Lead Mark E.

A fL a a _ 3 T 2 7 # Ui \ DuPont Legal Andrea V Malinowski, Es.4-^ 2h l o: 5 9 Wilmington Office Buildings 1007 Market Street Wilmington, DE 19898 Corporate Counsel DuPont Environmental 1007 Market Street & fy o 10 6- 743^ Wilmington, Delaware 19898 Phone: (302) 774-6443 Fax: (302) 774-4812 E-mail address: Andrea.V.Malinowski@usa.dupont.com CONTAIN NO CBI 3 CTJ CT** C-- 6 January 2006 7 \f r VIA OVERNIGHT MAIL TSCA Confidential Business Information Center (7407M) EPA East - Room 6428 Attn: Section 8(e) U.S.

AR226-3639 i i siduum Water Table Well hesiduum Base Well tteville Limestone Well _..

K ath erin e E.

\6YY p.1 m i 2 6 - 3733 July 28, 2006 u c ; QO 05 HUG - 1 " " D ' DuPont Haskell Laboratory for Health and Environmental Sciences Elkton Road, P.O.

Taft/ Taft Stettinius & Hollister LLP 4 2 5 W alnut Street, Suite 1 8 0 0 / Cincinnati, OH 4 5 2 0 2 -3 9 5 7 / Tel: 5 1 3 .3 8 1 .2 8 3 8 / Fax: 5 1 3 .3 8 T V 0 2 0 5 /w w w .taftlaw .com C in cin n a ti/C lev e la n d /C o lu m b u s / Dayton / Indianapolis / Northern Kentucky / Phoenix/ Beijing Robert A.

3M ENVIRONMENTAL LABORATORY REPORT NO.

SEVERN T RENT STL STL Chicago 2417 Bond Street University Park, IL 6466 Tel: 7DS 534 5200 Fax: 708 534 521 1 ivivw. stl-inc. cam ANALYTICAL REPORT JOB NUMB ER; 23 3 85 9 ..Prepared For : Weston Solutions, Inc, 1400 Weston Way .

dAaa -072.8 MICROBICS MICROTOX TOXICITY TEST TEST SUBSTANCE____________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).