AR226-2453 ORGANICS ANALYSIS DATA SHEET laboratory Name : CH2M h i u .

AR226-2628 CD Q310A03H Appendix 1 Chemical Analysis o f Concentrations in Groundwater C8 (pgA); period 1993 to 1996 D uP ont coordinates M onitoring Eastern Northern Well [m] [m] Freatic la1yer 1947 2204 2190 1998 2082 2084 2243 2296 546 108 350 118 627 119 663 301 683 302 671 303 686 305 633 307 2208 513 308 1950 1950 592 310 608 311 1950 1950 2237 625 312 640 313 405 314 2275 279 315 2058 2106 677 316 689 317 2240 575 318 First aquifer 2235 2275 1543 1930 405 MF-02 277 MF-03 19 N-07 20 N-08 2038 2319 2004 20 N-09 20 N-10 69 N-13 2355 119 N-15 2008 467 N-17 1900 277 N-18 2030 352 N-19 1929 177 N-20 1855 404 N-21 2174 272 N-23 2108 -7 N-25 1975 -100 N-26 1872 -17 N-27 1989 99 N-28 2104 84 W -02 1890 68 W -03 2087 668 W -05 1969 426 W -06 1944 275 W -08 1880 23 W -09 Second aquifer 2030 2174 352 N-19 272 N-23 198S 196$ 1944 9S N -28 420 W -06 27E W -0 8 Date o f sam pling Average 1993 feb '94 okt '94 aug '95 dec '95 mrt '96 concentration 1700 1.6 170 79 3.9 5500 260 82 56 280 250 480 24 100 100 190 70 510 1900 0 0.5 13.0 11.0 13.0 0.0 0.4 0.4 0.2 0.6 0.35 1.5 3.9 0.7 28.0 0.0 0.6 0.2 0.1 33.0 1.9 1.1 9.7 9.0 9.7 15.0 5.9 0.3 1.0 7.3 7.1 0.1 9.4 0.4 0.3 CC C. 0.2 0.1 0.1 0.1 2 170 90 4 5500 1700 260 190 76 56 280 250 480 24 100 510 1900 0 0.1 33.0 1.9 0.8 10.6 12.4 8.5 0.3 13.0 0.0 0.4 0.4 0.2 1.0 7.3 7.1 0.1 9.4 3.9 0.7 28.0 0.2 0.8 0.2 0.2 0.1 0.1 0.0 0.1

AR226-2644 33 AR226-2644 SPRUANCE TEFLON PROCESS AND WASTE WATER TREATMENT SYSTEM CHARACTERIZATION FOR C8 The procedure, which follows, has been prepared to address the sample collection need for C8 analysis o f w aste w ater samples including: 1.

AR226-3124 DuPont-3104 HASKELL LABORATORY FOR TOXICOLOGY AND INDUSTRIAL MEDICINE H-24119: STATIC, ACUTE 48-HOUR SCREENING TEST TO Daphnia magna PURPOSE: This is a rangefinding study designed to provide an estimate o f aquatic toxicity using fixed test concentrations and data measurements at predetermined intervals.

M A M - 3 3 1If. 496 evelopmental Toxicity Study in Rats DuPont-10157 TRADE SECRET Study Title developmental Toxicity Study in Rats Laboratory Project ID: DuPont-10157 Test Gu id elin es: United States (U.S.)

A X8G -t-f?

FLAIR DOCUMENTS AR226-3477 AR226-3477 FLAIR Work and Medical Historiesfo r A ll Employees A nd A ll Years Tuesday, November 09, 2004 Page 1 o f 897 0600 0340-S Date o fSample C8 Concentration UTILITY POOL FILAMENTS SERF OPER 8/8/1984 3/1/1985 3/15/1988 9/26/2002 9/27/2002 0.05 0.05 0.2 0 0 157 362 1472 6780 6781 12/3/1979 5/16/1980 5/16/1980 3/4/1984 3/4/1984 Tuesday, November 09, 2004 JBidacied *Prlraity Page 2 o f 897 0600 UTILITY POOL 0340-S FILAMENTS SERF OPER 0442-S POWER SERF OPER 1540-S C&P COLOR AND SERF OPER 1560-S C&P COLOR AND PROC OPER 0500 MECHANIC 3/15/1994 0.46 3/6/1963 5/6/1963 5/6/1963 1/2/1967 1/2/1961 2/12/1968 2/12/1968 10/21/1968 10/21/1968 1/31/1912 1/31/1912 Tuesday, November 09, 2004 Page 3 o f 897 Date o fSample C8 Concentration 0600 UTILITY POOL 0340-S FILAMENTS SERF OPER 0940-S BUTACITE SERF OPER 0600 UTILITYPOOL 0340-S FILAMENTS SER F OPER 0940-S BUTACITE SERF OPER 0700 LABORA TORIAN 0002-W MILITR Y SER FICE WAGEROLL 0700 LABORAT0R1AN 0760-S TECH LAB SR LABN 0500 MECHANIC 0500 TF MECHANIC TEFLON 2/22/1982 0.83 2482 6/28/1963 7/2/1963 7/2/1963 9/26/1963 9/26/1963 10/18/1963 10/18/1963 1/17/1964 1/17/1964 2/27/1964 2/27/1964 3/25/1964 3/25/1964 8/20/1965 8/20/1965 1/17/1966 1/17/1966 12/19/1961 12/19/1968 1/25/1972 1/25/1972 5/8/1975 5/8/1975 Tuesday, November 09, 2004 Redacted - Fjv Page 4 o f 897 Begin Date End Date_ 0600 UTILITY POOL 6/17/1959 7/20/1959 0251-H ZYTEL CASTER BLENDER (DAYS) 7/20/1959 4/11/1960 0600 UTILITY POOL 4/11/1960 5/16/1960 0340-S FILAMENTS SERV OPER 5/16/1960 11/18/1960 0001-W NO WORK (LAY OFF) WAGEROLL 11/18/1960 11/13/1961 0600 UTILITY POOL 11/13/1961 12/4/1961 0340-S FILAMENTS SERV OPER 12/4/1961 5/14/1962 0340-S FILAMENTS SERV OPER 5/14/1962 7/7/1963 0340-S FILAMENTS SERV OPER 7/7/1963 3/6/1966 0250-H ZYTEL BLENDER 3/6/1966 5/1/1966 0245-H ZYTEL MATERIALS HANDLER AND SUPPLY CLERK 5/1/1966 2/26/1967 0250-H ZYTEL BLENDER 2/26/1967 4/2/1967 0240-S ZYTEL POLY SERV OPER 4/2/1967 7/2/1967 0250-S ZYTEL CASTER BLENDER 7/2/1967 12/24/1967 0240-S ZYTEL POLY SER V OPER 12/24/1967 1/5/1969 0442-S POWER SERV OPER 1/5/1969 8/29/1971 0457-H POWER DRIVER 8/29/1971 5/10/1974 1441-H MECHANICAL SER V OPER 5/10/1974 1/13/1975 Tuesday, November 09, 2004 P ftife-vv01 Page 5 o f 897 0500 MECHANIC 0500 TF MECHANIC TEFLON 1/21/1982 0.19 1/13/1975 4/30/1978 4/30/1978 1362 Tuesday, November 09, 2004 Redacted - Pr'vac; Page 6 of 897 Job Code Job Title Begin Date End Date Date o fSample C8 Concentration Days in Teflon at Time o f Sample 060 UTILITYPOOL V TM 1977 6/29/1977 0340-S FILAMENTS SERV OPER 6/29/1977 10/1/1977 0840-S FP TEFLON TFE SERV OPER FINE POWDER 10/1/1977 10/2/1977 0840-S TEFLON TFE SERV OPERJFINE PWDR-DISP SERV O 10/2/1977 6/1/1978 0844-S 0844-S 0866-S TEFLON COPOLYMERS FEP SERV OPER 6/1/1978 6/12/1978 TEFLON COPOLYMERS FEP SERV OPER 6/12/1978 9/25/1979 1-7 724 TEFLON COPOLY TEFZEL-TEL A OPER/DISP FIN O 1/2/1980 7/15/1981 0.98 1383 7/12/1982 0.77 1745 1/2/1980 Tuesday, November 09, 2004 n.

Pathology Associates International A Company of Science Applications International Corporation AnEmptoyee-OwnedCompany Cell Proliferation Report 4-Week Capsule Toxicity Study with Perfluorooctane Sulfonic Acid Potassium Salt (PFOS; T-6295) in Cynomolgus Monkeys Covance Study Number 6329-222 QUALITY ASSURANCE STATEMENT This cell proliferation project has been inspected and audited by the PAI Quality Assurance Unit (QAU) as required by the Good Laboratory Practice (GLP) regulations promulgated by the U.S.

3M Environmental Laboratory Final Project Report Amendment Project number: E12-0849 Project title: "Analysis of PFOS, PFHS, PFBS and PFOA in Soils from Decatur, AL in December 2012" Project Lead: Cleston Lange Amendment date: 2/13/2013 Am endm ent number: 01 This amendment modifies the following portion of the final report: 1) Correction to the title of Table 1 2) Update the title page to refer to the amended report as revision 1 3) Corrections to Table 11 and 12 based on Weston comments.

HAZLETON LABORATORIES AM ERICA.

BACK TO MAIN Centre Analytical Laboratories, Inc. 3048 Research Drive State College, PA 16801 www.centrelab.com ^P hone: (814)231-8032 Fax: (814) 231-1253or (814) 231-1580 Analytical Report Fluorochem ical Characterization of Drinking W ater Sam ples Colum bus, GA (W 2336) Centre Analytical Laboratory Report No. 023-007F (Revision 2) (Revision Date 3/21/01) Testing Laboratory Centre Analytical Laboratory, Inc. 3048 Research Drive State College, PA 16801 3M Environmental Laboratory Contact Kent R.

BACK TO MAIN Study Title Solubility Study of Perfluorooctanesulfonate (PFOS), SD-018 and Perfluorooctanesulfonamide (FOSA), SE-027 in Male/Female Human Urine Data Requirement 40 CFR 160.105(b) Author Mark E.

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.

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!

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