TestResults AR226-2119 fite:///C|/WIND0WS/TEMP/C-8 Z 2-26-73 thim8-12-81.htm TestResults Sam ple Date Range C oncentration Range A ction Level Industrial Hygiene 2/26/73 100% 8/12/81 Sample Dt Sample # D uration Type Employee Name Fera BTO : LOC : 04 POWER & SERVICES 074 INCINERATOR AREA - GENERAL 4/15/81 52165 Z 4/20/81 52166 Z 4/20/81 52167 Z C hem ical Cone U nit Percent C-8 0.0005 PPM 0.0% C-8 0.0011 PPM 0.0% C-8 0.0002 PPM 0.0% BTO : LOC : 07 TECHNICAL 406 TFE-FEP-MELT INDEXER-ON BENCH 10/23/80 57333 Z 10/28/80 57334 Z 10/31/80 57335 Z C-8 <0.0001 PPM 0.0% C-B 0.0011 PPM 0.0% C-8 0.0008 PPM 0.0% BTO : LOC : 07 TECHNICAL 411 BLDG. 163 - LAB GENERAL AREA 4/10/81 47508 Z C-8 <0.0001 PPM 0.0% A3P006235 BTO ; LOC : 07 TECHNICAL 435 BLDG 212-CHECK VISUAL CONTAMINATION CUBES 2/25/81 60866 Z C-8 0.0003 PPM 0.0% BTO : LOC : 07 TECHNICAL 436 BLDG 212-FEP-MELT INDEXER-ON BENCH 2/25/81 52683 Z lo f 51 C-8 O.OCi 5 PPM 0.0% 8/9/2001 3:52 PM E ID 139477 TestResults file:///C|/WIND0WS/TEMP/C-8 Z 2-26-73 thru 8-12-81.htm 2/25/81 52684.

AR226-2310 Charles J Zarzecki 03/13/2003 11:02 AM To: Catherine A Barton/AE/DuPont cc: Subject: Re: Our stance on actual sampling Q C a th ie , Actual sampling w ill show low er numbers.

Relevance of Soil Sampling in Site Screening Level Assessments for PFOA October 22,2003 AR226-2347 I Discussion Topics Review soil sampling key learning's Present site screening level assessment conceptual model g O to 0> Ul H EXP015812 Messages For Today | Soil sampling is not critical to site screening level assessments designed to evaluate | overall human and environmental exposure at a PFOA use facility. * Water monitoring should focus on site boundaries, key discharge points, or where wg potential exposure is occurring. 0 tO a<01\ to EXP015813 PFOA P/C Characteristics PFOA displays high water solubility - 1000 mg/L (Kissa, 1994) - >10% (3M, 2001) PFOA displays low adsorption capacity in all soil types (3M & APME Studies) - Similar to other highly mobile chemicals (see Koc chart) s SB oNJ m 'j w u EXP015814 Koc Comparison Comparison of Koc's for PFOA and Other Chemicals Napthalene --------------- C ap e F ear (A P M E , 2003) Drum m er (A P M E , 2003) -- 4 Hidalgo (A P M E , 2 0 0 3 ) 4 -------4 Keyport (A P M E , 2 00 3) 4--,4 Wilmington Sludge (A P M E , 2003) S Methylene Chloride O IO A Brill Sandy Loam (3M , 1978) _________ , _______ ,-------------------------- - c\ si I 0 200 400 600 800 1000 1200 Koc (mL/g) EXP015815 Soil Sampling Key Learning's I Our extensive soil sampling database from Washington Works shows: --Overall low concentrations, won't build-up --Air deposited PFOA readily dissolves and migrates via water movement (sw/gw) Most surface soils <50 ug/kg --All results significantly below CATT screening level of 240,000 ug/kg o N at -d Ul U1 EXP015816 Site Screening Level Assessment Conceptual Model Ba 0 to 0) U1 01 EXP015817 PFOA Site Screening Level Assessment Conceptual Model - Compiled using extensive modeling and monitoring conducted at Washington Works - Considers realistic potential exposure points to focus screening level assessment monitoring Facility water discharges Groundwater at site or discharge boundaries I - Soil is not a key monitoring point o N Ul sj EXP015818 SCREENING LEVEL ASSESSMENT MODEL AIR EMISSIONS t= > <==5, % AQUEOUS DISCHARGE ^-r /~ * S W M U \ ttl UNSATURATED SOIL AQUEOUS DISCHARGE -- MX RIVER / l UNSATURATED SOIL yt y tv GROUNDWATER o POTENTIAL SCREENING LEVEL ASSESSMENT MONITORING POINTS M cn 0 FACILITY AQUEOUS DISCHARGE (OUTFALLS) ui oo (2 ) SURFACE WATER (RIVERS, PONDS, STREAMS ETC.)

AR226-2560 August 31, 2001 Mr.

AR226-2746 - ' Copies to: E.

AR226-3051 < Study Title Eye Irritation Test with H-21946 in Rabbits laboratory Project ID Haskell Laboratory Report No. 788-96 Author Tracy A.

AR226-3090 DuPont HL-1998-01380 HASKELALNLDAIBNODRUASTTORIRAYLFMOERDTICOIXNIECOLOGY H-230T0O5:FSATTAHTEIACD, AMCIUNTNEO9W6-SH, OPiUmRepShCaRleEspErNomINeGlasTEST PURPOSE: Tthesist cisonacreanntgraetfiionndsinagnsdtuddaytadmeseiagsnuerdemtoenptrsovaitdpereadneetesrtimmianteedoinf taeqruvaatlisc. toxicity using fixed GENERAL INFORMATION W O R KMHSRYAAEQNSTKEU0 NREELISYTALTMTLNNTSTTUU/ECMMTS0OTBBDEPEEEDERRS::::Qff^cm2--t3j 0g0gJ5/ fJ} ___ 3 NOTESBPOOONKSOIDR:: DuPont Specialty Chemicals NOTSEUBBCOMOOIMTKPTNOEURSMI'STBIOENR:j None available CONTAMINANTS: CAS R EPGUISRTITRYY:rNNoont esuapvpaliileadblbey sponsor.

AR226-3147 DuPont-3823 TRADE SECRET Study Title H-24335: Local Lymph Node Assay (LLNA) Laboratory Project ID: DuPont-3823 AUTHOR: Gregory S.

TRADE SECRET AR226-3179 DuPont-6818 S tudy Title H-24616: Static, Acute, 96-Hour Screening Test to Pimephales prom elas Laboratory Project ID: DuPont-6818 A u t h o r : Daniel J.

TRADE SECRET Study Title H-24761: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ED: DuPont-55^1 AR226-3190 DuPont-5591 A u t h o r : Carol Finlay, B .A .

ARUM - x i DuPont-8968 TRADE SECRET Study Title H-24890: Bacterial Reverse Mutation Test with an Independent Repeat Assay Test Substance H-24890 Authors Valentine O.

AR226-3351 - Continuous flow-through - 14 volume renewals/dav - Negative, positive control (PFOS), 4 test substances - Single test concentration ~ 10 pg/L as total fluorine - nominal test substance cone's from 13 - 100 pg/L -1 test chamber/test substance; 70 fish /test chamber - 16 L : 8 D photoperiod - 14 d uptake phase, 14 day depuration phase - Fish fed - 2% body weight; frozen brine shrimp - Loading - 0.2 g/L/day .esu Stock Solutions - % Recovery of Test Substance as Fluoride a DayO @Day 13 esults PFOS Uptake and Depuration O Measured m Modeled Uptake 4 Modeled Depuration Fluoride, ug/g Day Results 8.000 Urethane Polymer Uptake and Depuration o Measured Modeled Uptake a Modeled Depuration 7.000 6.000 5.000 Fluoride, ug/g 4.000 3.000 2.000 1.000 0.000 o o $ oo 10 O O <0 ----- A A A A A Si 00 AA 15 20 Day Fluoride, ug/g Resulti Zonyl BA (Telomer B Alcohol) Uptake and Depuration O Measured Modeled Uptake 4 Modeled Depuration 14.000 12.000 10.000 8.000 XO>- 6.000 4.000 2.000 0.000 -c O -ooo o o 10 oo o o 15 Day OO 20 -ft25

AR226-3359 EVALUATION OF POTENTIAL ENVIRONMENTAL EXPOSURE FOR PERFLUORINATED 8-2 TELOMER B ALCOHOL ffOUNIVERSITAT ..OSNABRCK J.

AR226-3636 INTERIM REPORT #1 Analysis of Oakdale Water Samples STUDY TITLE Analysis of Perfluorooctanoic Acid (PFOA), Perfluorobutanesulfonate (PFBS), Perfluorohexanesulfonate (PFHS), and Perfluorooctanesulfonate (PFOS) in Water, Soil, Sediment, Fish, and Clams Using LC/MS/MS for the 3M Cottage Grove Monitoring Program DATA REQUIREMENTS EPA TSCA Good Laboratory Practice Standards 40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE May 19, 2005 PERFORMING LABORATORY Exygen Research 3058 Research Drive State College, PA 16801 .

etty Boros-Russo - Fwd: TRANSM ITTAL - Parlin P&T System Remaining Data From: To: Date: Subject: Karen Fell Boros-Russo, Betty Mon, May 14, 2007 11:12 AM Fwd: T R A N S M IT T A L -- Parlin P&T System Remaining Data fyi > William B Robertson William.B.Robertson@USA.dupont.com> 5/14/2007 8:48 A M > Hi Karen, Attached to this m essage please find a transmittal of the remaining analytical data for the Parlin Pump and Treat system as requested in the N JD E P letter of April 2, 2007.