AR226-2429 ^f^ ^ CONCEPTUAL CLOSURE PLAN gtf/MPDES PERMIT APPLICAT - I O ^ N ^.

AR226-2527 REMOVING THE 1.4X FACTOR FROM EXPERIMENTAL STATION C-8 IN MATER RESULTS, HERE IS A COMPARISON OF THE MOST RECENT SAMPLES: C-8 SAMPLE EXP ST (PPB) CH2MHILL CPPB) CH2M C9(?

AR226-2578 Lfiiirf) Waller DocumenI 10 of 16 ASB017491 EID477528 I I I I I I I I I III ^ ,^1\ - ) J '^SHiSy I I I I I I I I OHIO RIVER WATER SAMPLING PROPOSAL FOR THE WASHINGTON WORKS FACILITY AND THE LETART LANDFILL Date: February 2002 Project No.: D6WW7423 CORPORATE REMEDIATION GROUP An Alliance between DuPontand URS Diamond Barley Mill Plaza, Building 27 Wilmlngton, Delaware 19805 AJ3H017492 EID477529 Jp ,, ~1 1 1 1 Bill) ,i(;"aB^ -\ J - " 1 1 1 1 1 1 Ohio River Water Sampling Proposal Table Of Contents TABLE OF CONTENTS 1.0 Introduction.--.............,,,........,,........,.,..,...,.........,...,,....................,...,... 1 2.0 River Water Sampling Approach Near The Washington Works Facility................ .,3 3.0 River Water Sampling Near the Letart Landfill.................................................. 5 Table 1 Figure 1A Figure 1B Figure 2 TABLES Proposed River Water SamplingPlan DuPont Washington Works Facility and Letart Landfill FIGURES Proposed Ohio River Water Sampling Locations - Upstream, DuPont Washington Works Facility Proposed Ohio River Water Sampling Locations Downstream, DuPont Washington Works Facility Proposed Otuo River Water Sampling Locations, Letart Landfill Site revZrtwr.dOC F8b. 27,02 ( Wilrnlngton, DE ASH0174&3 EID477530 I Ohio RIvar Water Sampling Proposal Introduction ] 1.0 INTRODUCTION I I I I 1I A multi-media Consent Order (Order No.

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AR226-2642 31 AR226-2642 Shimizu C8 Modeling Results -10/4/04 Scenario PlanB-1 (w/oDBS) Plan B-2(w/o DBS) Plan B-3, DBS @95% Plan B-3, DBS @96% Plan B-3, DBS @98% Plan B-4, DBS @95% Plan B-4, DBS @96% Plan B-4, DBS @98% Maximum Annual Average (all concentrations in ug/m3) 1997 0.836 0.637 0.283 0.234 0.099 0.191 0.161 0.076 1998 0.992 0.762 0.338 0.279 0.118 0.233 0.196 0.092 1999 0.824 0.622 0.276 0.228 0.097 0.184 0.154 0.074 Note: All maximum predicted annual average concentrations occur on the plant fenceline.

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Study Sponsor: Issue Date: Document Reference No.: ELFATOCHEM 04-Jul-95 95/SAEK/0489/AMP AR226-3021 Bacterial Growth Inhibition Author(s): Coil: H.

AR226-3089 HASKELL LABORATORY FOR TOXICOLOGY AND INDUSTRIAL MEDICINE H-23005: STATIC, ACUTE 48-HOUR SCREENING TEST TO Daphnia magna PURPOSE: This is a rangefinding study designed to provide an estimate of aquatic toxicity using fixed test concentrations and data measurements at predetermined intervals.

| AR 246 - 3229 | a1 | ARARG _ 3427 DuPont-8867 TRADE SECRET Study Title 'H-25170: Bacterial Reverse Mutation Test with an Independent Repeat Assay Authors Valentine O.

ARR26 _ 3251 = --_ --Tr TRADE SECRET ARR26 325] DluPiont11238 Study Title H-25357: Approximate Lethal Dose (ALD) by Skin Absorption in Rabbits Laboratory Project ID: DuPont-11238 AUTHOR: Carol Finlay, B.A

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11) e, Pharmacokinetic study in the Cynomolgus Monkey, T-7485.1 , 77 y s s SANITIZED DEC 0 9 2003 Final Report on the A Pharmacokinetic Study of Perfluorobutanesulfonate in the Cynomolgus Monkey To: 3M Corporation P.O.

ARNG5 3M ENVIRONMENTAL LABORATORY METHOD ANALYSIS OF POTASSIUM PERFLUOROOCTANESULFONATE OR OTHER FLUOROCHEMICALS IN SERUM EXTRACTS USING HPLC-ELECTROSPRAY/MASS SPECTROMETRY Method Number: ETS-8-5.1 Author: Lisa Clemen, Robert Wynne Approved By.

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