DEPARTMENT o f t h e n a v y N A V A t- r e s e a r c h l a b o r a t o r y W A S H I N G T O N , D .

iraT s ia R l N A TR pit2a P DEEGL e BCGYN ; TEMA y = oa NEEel ha fy oR 1 4 - rT byi Lks ah teHy - 4 ra g # % S) ca Joi moei bo ii gl i 41 Si pg IR a] eRelessed | a 2 Site LLowCR a HCOC RTWG ly ERTA B7Y i % Ere SS = fo i1E7 "A : : iE ie, Be a , Hael e ho 6aJa TNERal ERYgCoTes ik S| EN e hLR 3 11 i & 8BS5 Jp iE, ENR BE RT @ Pel ; Sage BR RReeccoorrddss ooff LLiivvee LLaammpspisliliiss hhi(ggggiinnssiiii iinn iLLoowweerr PPoooo,l1 22 , LLcamntppssiilli,ss' h,hiiggggi#n~ssiiii llooccaattiioonnss o AAllll SSuurrvveeyy SSiitteess, imn LLoowweerr PPooool2l2 Thi Sur indicates ies with Lowe Pool 2 oftae MissRivie that weesarveredby the This :fig,ge indicates sites w:it~tin Lower Pool 2 o:ftlae Mississippi Pd~,er that were sur~ey,ed by the Minneors Department ofanal Resotses rom 1999 2017 Survey ses where Lani Mi~'mesota D~pm-tment of Natvxa| Resot~rces firom 1999 to, 2017.

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ACUTE TOXICITY TO AQUATIC INVERTEBRATES -- Ceriodaphnia dubia TEST SUBSTANCE Identity: N-Ethylperfluorooctanesulfonamide; may also be referred to as U1464, EtFOSA, EtPOSA, F-6309, or FX-12. (1Octanesulfonamide, 1,1,2.2,3,3.4,4,5,5.6,6,7,7.8.,8,8heptadecafuoro-N-ethyl-, CAS # 4151-50-2) Remarks: Material is a white solid.

* CAS Number 754-91-6 3M Company A R226.057 7 Voluntary Use and Exposure Information Profile Perfluorooctane sulfonamide I CHEMICAL IDENTIFICATION Chemical Name: Perfluorooctane sulfonamide CAS Number: 754-916 IL COMPANY IDENTIFICATION Company Name: ~~ 3M Site Location: 10746 Innovation Road Cottage Grove, MN 55016 1400 State Docks Road Decatur, AL 35601 Technical Contact: W.A.

AR226 -- 0755 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: A mixture containing perfiuorooctanesulfonate, which may also be OrecftearnreesdutlofoansicPaFcOiSd), (FCCA-9S5#, 2o7r9a5s-3a9-c3o)m.ponent of FC-203CE. "- Remarks: The 203CE (2/21/89). 3M production lot numberwas Current information indicates 519. itis a The test sampl mixture of 1.84% is FC- fPoFaOmSer,,330.%1%diseotdhiyluemneocgtlyylcsoullfbauttey,l 2e.t1he9r%,p6o0l.yo2x3y%etwhaytleern,e2m.o5n6o%ocStuylltpohneenyl 2et1h4erw,a0s.a1d2d%esdodaitaumnloamuirnylalsuclofnatcee,ntarnadti0o.no05f%2t0o0lylmtrgia.zole.

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AR226-2039 INTEROFFICE MEMORANDUM Date: Prom: 21-Sep-1998 12:30pm EDT JACK OFFENBERGER OFFEMBJL Dept: Tel No: COPOLYMERS B-180T 863-4959 TO: 4 addressees CC; 5 addressees Subject: C-8 I have made charts showing the C-8 sample results for the past five years.

AR226-2455 Ohio River monthly average flows at Cincinnati, OH River flow data from <np://wwwJrd-wc.usace.army.mil/MonthlyJrtm/> Assume: 1 fl3/sec= 0.0283m3/sec; 1 m3 = 1*10"6 om3; 1 cm3 s 1 mL E stimated Estimated Estimated ftMeasured Lorig-term normal normal normal Estimated Mo-Yr flow, ft3/sec of iwrmat, % flow, ft3/sec flow, m3/sec flow, m3/mo normal flow, Urno Jun-96 131.400 175 75086 2.12E+03 5.51E+09 5.51E+12 Jul-98 94.452 211 44764 1.27E+03 S.39E+09 3.39R+12 Aug-98 28,387 80 35484 1.00E+03 2.69E+09 2.69E+12 Sep-98 21,200 74 28649 8.11E+02 2.10E+09 2.10E+12 Ocl.98 21,065 77 27357 7.74E+02 2.07E+09 2.07E+12 Nov-98 21,400 40 53500 1.51E+03 3.92E+09 3.92E+12 Dec'98 34,548 35 98709 2.79E+03 7.48E+09 7.48E+12 Jan-89 178,190 131 136023 3.85E+03 1.03E+10 1.03E+13 Feb-99 134,860 81 166494 4.71E+03 1.146+10 1.146+13 Mar-99 180.260 85 212071 6.00E+03 1.61E+10 1.61E+13 Apr-69 118000 66 178788 5.06E+03 1.31E+10 1.31E+13 May-99 60226 49 122910 3.48E+03 9.32E+09 9.32E+12 Total 1.02E+06 1.18E+06 3.34E+04 8.74E+10 8.74E+13 C8 discharge to Ohio River in1996,!

An official website of the United States government Here's how you know Review Occup Med. 1993 Jul-Sep;8(3):519-31.

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TRADE SECRET AR226-3076 Study Title H-22762: SKIN IRRITATION TEST IN RABBITS LABORATORY PROJECT ID: HL-1997-00716 AUTHOR: Carol Finlay, B.A.

ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonawthei,ch may alsobe referretdoas PFOS, FC,95,or as a component ofFC-203CE.

AR226-2985 a* CCR Cytotest Cell Research GmbH & Co.

AR226-3031 : Study Title CorrositexTM In Vitro Test with H-21333 Laboratory Project ID Haskell Laboratory Report No. 708-95 Author Carol Finlay Study Completed On October 9, 1995 Performing Laboratory E.