AfOT'050$ CHRONIC TOXICITY TO FRESHWATER INVERTABRATES (Daphnia magna) TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC116, FC-126, FC-169, orFC-143.

/ N frU -0 5 2 .5 ACUTE TOXICITY TO FISH TEST SUBSTANCE_______________________________________________ Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC116, FC-126, FC-169, FC-143 or as the major component of FC1015.

(\Rl%-osi5 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (E.G.

' 3M Specialty Materials Fil-W ' /37S3M 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.

r_e * -o ia + a *jf, j/ u & /* - M4 rhT) DuPont Haskell Laboratory q,e * f - ( - 3 9 u% for Health and Environmental Sciences Elkton Road, P.0.

f AR226-2007 i C-0 PERSONAL AIR MONITORIWB DATA NASHINSTON WORKS - SPD COPOLYtffiRS AREA <1988) CAEL IS 0.96 PPB) JOB NAHE/PERS CODE NO- OP EtEOH.

*> i* AR226-2085 <ZIPFRWWPS-A1-BWAIL.DUPONT.COM> On 09/14/99 ) To: Roger J Zipfel/AE/DuPont cct Subject (C-8 EMPLOYEE EXP0SURE/27-Jun-199 7The C-8 Charts You Wanted Date: Fri, 27 Jun 1997 15:28:00 EDT Ftom: "ANTHONY J.

AR226-2103 Test Results Sample Data Range Concentration Range A ction Level Industrial Hygiene 1/1/94 12/31/94 100% Sample Dt Sam ple# D uration Type Employee Mama BTO: 08 LO C: 113 TEFLON P /S - SHIFT MECHANIC (58MD) 2/2/94 19405 360 P 5/17/94 19813 390 P 8/26/94 20160 360 P 12/13/94 20672 380 P Pere Chemical 5BMD C-8/FC-143 5BMD C-8/FC-143 58MD C-SZFC-143 58MD C-8/FC-143 BTO: 08 TEFLON LOG: 703 FINE POWDER PACKOUT ROOM 1/27/94 19338 370 P 08PJ C-8/FC-143 BTO: 08 LOC : 708 TEFLON P /S - FINE POWDER PACKOUT (06PJ) 1/27/94 2546 375 A 8/25/94 20153 390 P C-8/FC-143 08PJ C-8/FC-143 BTO: 08 LOC: 717 TEFLON ROOF AREA-GENERAL 1/28/94 8 8 380 A C-8/FC-143 BTO: 08 LO C: 731 TEFLON A /S -INSIDE F.P.

,T estR esu)ts \ AR226-2120 flle:///C|/WLNDOWSn iMVim>8 5F IZ-I l - / y mru iz.-1 3 -iy.n m i Test Results Sam ple Date Range Concentration Range Action Level Industrial Hygiene 12/11/79 100% 12/13/79 Sample Dt Sample # Duration Type Employee Name Pers B T O : 08 TEFLON@ LOC: 706 FINE POW DER D RYER #3 12/13/79 48579 S Chemical Cone Unit Percent c ' 8 <0.0001 PPM 0.0% BTO: LOC: 08 TEFLON 707 FINE POW DER D RYER #2 12/11/79 60139 S C-8 0.0038 PPM 0.0% ) 1of 2 8/9/2001 3:50 PM EID139475 ,,T estR esults 4 V ** I * Thursday.

AR226-2327 A ir Em issions M odeling Plan A ir dispersion modeling will be performed to calculate ambient ground-level air concentrations o f C8 emissions from the Chambers Works site.

Engineers Planners Econom ists Scientists April 12, 1993 LMS35216.X AR226-2428 Mr.

AR226-2520 Stephen R Peck 11/12/02 02:08 PM To: Ronald V Crosmun/CL/DuPont@DuPont cc: John E Crum/SE/DuPont@DuPont, Ta-W ei Fu/SE/DuPont@DuPont, Leo M Lech/DuPont@DuPont, Thomas W Mahlberg/SE/DuPont@DuPont, Mark E Reeder/SE/DuPont@DuPont Subject: Eureka!

AR226-2553 To: Andrew S Hartten/AE/DuPont@DuPont Co: Subject: request for Information on perfluorochemicals can you make a m eeting this afternoon at 3:15 at chestnut run 711 . . . . . .

AR226-2701 AR226-2701 TORONTO WORKSHOP MATERIALS September 13-14,2004 Measuring Physical Chemical Properties & Analytical M ary A.