M iZ Z ir 2727 Pace Analytical Services, Inc. 1700 Elm St.

O QG Laboratories' I S4. ly Analytical Report PETER TYRRELL UNITED WATER CITY OF ORANGE CHESTNUT STREET PLANT AT 632 BEACH STREET ORANGE, NJ 07050 Account No: C00927, UNITED WATER CITY OF ORANGE Project No: C00927, * Sample Number L25WS60^r * Sample Description CHESTNUT ST POE TREATED TP001001 Received Temp: 38 F Iced (Y/N): Y Parameter PFOA Method Sample Number LW?

SEVERN TRENT STL STL Chicago 2417 Bond Street University Park, IL 60466 Tel; 708 534 5200 Fax; 708 534 5211 www.stl-inc.com S iqria L /v Name: Richard Ch WrighL T it.T.e ; P ro je c t Manage r E-Mail : r w r i g h t @ s t 1 - i n c .corn This Report Contains Leaders in Environmental Testing Da Le STL Chicago 2417 Bond Street University Park, IL 60466 PHONE: (70S) 534-5200 FAX. ,, : (708) 534-521:1 Pages Severn Trent Laboratories, Inc.

RECEIVED PFOS Ecotoxicological Testing Results OPlfyffQpprison of Effect Concentrations Calculated Using Different Sample Purity M H M rr^an {n fasured concentrations, except where * (nominal).

Andrew Seacat 04/28/04 01:44 PM To: Melinda M.

A R 2% -0 % \ Argus Research Laboratories, Inc. 905 Sheehy Drive, Building A Horsham, Pennsylvania 19044 T: (215) 443-8710 F: (215) 443-6587 PROTOCOL 418-008 SPONSOR'S STUDY NUMBER: 6295.9 STUDY TITLE: Combined Oral (Gavage) Fertility, Developmental and Perinatal/Postnatal Reproduction Toxicity Study of PFOS in Rats.

AR226-2096 Test R esulti Sample Date Range Concentration Range Action Level Industrial Hygiene 1/1/96 1201/96 100% Sample Dt Sample ff Duration Type Employee Name BTO: OS TEFLON LOC: 113 P/S-SHIFT MECHANIC (58MD) 1/1006 22569 330 P 8/26/96 24210 360 P Pets Chemical S8MD 08/FC-143 58MD C-8/FC-143 Cons Unit Percent 0.019 MPB 0.08 MPB 04% 5.4% BTO: 08 TEFLON t o c ; 70S P/S - FINE POWDER PACKOUT (08PJ) 3/1106 23060 360 P 12/996 24677 420 P 08PJ 08/F 0143 06PJ 08/FC-143 0.07 MPB 0.026 MPB 125% 4.6% BTO: 06 TEFLON LOC: 731 A/S - INSIDE FJ>.

AR226-2419 * cihrttki/ /6i*l4s {0 *ir-?

AR226-2861 > E.

AR226-2887 kl E.

t4/U6_ 3<337 419 H-24516: Subchronic Toxicity 90-Day Gavage Study in Rats with One-Generation Reproduction Evaluations TRADE SECRET Study Title H-24516: Subchronic Toxicity 90-Day Gavage Study in Rats with One-Generation Reproduction Evaluations Revision No. 1 Volume 4 o f 5 3X37 Revised Page DuPont-5386 Test Guidelines: U.S.

AR226-3337 Migration QtAgEQ frQjn^IFE It was decided to develop a new method of extraction of APFO from PTFE samples (extraction during 8 h at reflux with 9 5 % ethanol at pH - 10 on finely ground material) as well as a new method of detection of APFO using capillary gas chromatography.

AR226-3380 Perfluorooctanoic Acid: Relationship Between Repeated Inhalation Exposures and Plasma PFOA Concentration in the Rat P.

2 00004o P- 2 Mm FOR DUPONT USE ONLY To: file From: R.A.

If A V . & 9. 6 - } l f J O 14 >68Bk, 00019G M tf6 _ ilfjo W il m in g t o n , D e l a w a r e IS398 PLASTIC PRODUCTS AND RESINS DEPARTMENT PERSONAL & CONFIDENTIAL July 25, 1979 TO: R.