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Wildlife International, Ltd. -1 - PrqjNeumebter 454A-I09 PFOS: A SEMI-STATIC LIFE-CYCLE TOXICITY TEST WITH THE CLADOCERAN (Daphnia magna) ADDENDUM WILDLIFE INTERNATIONAL, LTD. PROJECT NUMBER: 454A-109 3M LAB REQUEST NO. U2723 U.S. Environmental Protection Agency Series 850 - Ecological Effects Test Guidelines OPPTS Number 850.1300 and OECD Guideline 211 This study was reported using a test substance purity of 90.49%. The test substance characterization was revised on 9/7/00 and the purity was determined to be 86.9%. The Sponsor requested that the results be revised based on the most recent purity analyses. The results previously presented were simply corrected by the ratio of the two purities or a factor of 0.9603. No attempt was made to recalculate analytical standard concentrations or measured concentrations from original raw data. As such, minor errors due to rounding may be present. Attached is the revised summary, page from the final report and the most recent certificate of analysis. Wildlife International, Ltd. -2- Project Number 454A-109 REVISED STUDY SUMMARY BASED ON A PURITY OF 86.9% SPONSOR: SPONSOR'S REPRESElffTATIVE: LOCATIONOF STUDY, RAW DATA AND A COPY OF THE FINAL REPORT: 3M Corporation Susan A. Beach Wildlife International Ltd. 'Eastort, Maryland 21601 WILDLI_EINTERNATIONAL LTD. PROJECT NUMBER: TEST SUBSTANCE: STUDY: NOMINALTEST CONCENTRATIONS MEAN MEASURED TEST CONCENTRATIONS" TEST DATES: LENGTH OF TEST: TEST ORGANISM: SOURCE OF TEST ORGANISMS: AGE OF TEST ORGANISMS: NOEC: LOEC: MATC: 454A-109 PFOS (Perfluorooctane Sulfonic Acid Potassium Salt) PFOS: A Semi-Static Life-Cycle Toxicity Test with the Cladoeeran (Daphnia magna) Negative Control, 1.3, 2.8, 5.5, l 1, 22 and 44 mg a.i./L Negative Control, 1.4, 2.8, 5,4, 12, 23 and 46 mg a.i./L Experimental Start -'July 12, 1999 Biological Termination - August 2, 1999 Experimental Termination - August 4, 1999 21 Days Neonate Cladocerans (Daphnia magna) Wildlife International Ltd. cultures Easton, Maryland 21601 Juveniles < 24 hours old 12 mg a.i./L 23 nag a.i./L 17 mg a.i./L Wildlife International, Ltd. -3- CERTIFICATE OF ANALYSIS Project Number 454A-109 INTERIM CERTIFICATE OF ANAL YSIS Revision 1(9/7/00) Centre Analytical Laboratories COA Reference #: 023-018A 3M Product: PFOS, Lot 217 Reference #: SD-018 Test Name I Purity: 8.6.9% Specifications Result Purity 1 86.9% Appearance Identification NMR White Crystalline Powder :i :i::ii:_:-:.: _ :i:,: :.:i: ..- :!_:. .... i _._.:. _ _ ::::_:I" !i!i Conforms ' Positive 2. Magnesium 3. Sodium 4. Potassium 2 5. Nickel 6. Iron , 7. Manganese 2. 0.001wt./wt.% 3. 1.439 wt./wt.% 4. 6.849wt./wt.% 5. <0.001 wt./wt.% 6. 0.005wt./wt.% 7. <0.001wt./wt.% TToottaall%%ImIpmupruitryi(tyNMR) (LC/MS) !}iiii!iii iiiiiii:ii!i:!!iiiiiiiiiiiiiiiii!i!iiiliilililiiiiiiil;iiiiiliili;i :i!i_ii i_ 81..4913Wwtt..//Wwt.% _:i:i@i_i:!_!i!!i_ii;i:i:i:,i:i_::iil!ii:ii_i:ii:!_:i!:!ii:i::i::_ii;!_:!i:i::_:i:)_::i!:!:ii:__ii::ii:;i_:il:!_t (GC/MS) . None Detected Related Compounds - , POAA , 0.33 wt./wt.% Residual Solvents (TGA) None Detected Purity' by DSC Not Applicable 3 1. Chloride _o_r__uco_no_onii_i_ii,i_!i!_,i_ii!iii!_'!ili_!!ii!_!ii!:!ii"_i_iii!i!i:_iii__;liiii !ii2i!i0!,i9__i,i_ 3. Bromide :::::::::::::::::::::::::::::::::::: ::::::::::::::::::::::::::::::::::::::::::::::: .,::.: .:':. ::. ":: - :::. 1. <O.Ol5wt./wt.% 3. <0.040wt./wt.% 4. Nitrate 4. <0.009wt./wt.% 657. NSuitlrfaittee4 i?ii!ili!ii:iii:iiilii?ii:ii;7:ii<6iiii0i0!!0i!7i6i: ................................................:.:...............:..!.:.:..:.i.i.i.............!.i.i.i.i.:.:::L_? 5. <0.006 wt./wt.% 1. TFA 2. PFPA - 3. I-IFBA 1. <0.1wt./wt.% 2. <0.1_./wt.% 3. 0.10wt./wt.% 4. NFPA Elemental Analysisr: 1. Carbon 2. Hydrogen 3. Nitrogen 4. Sulfur 5. Fluorine !_i!!_i_._ii_ii_:i:i_i_!))_ii_ii_;_!_!i!::ii_::!:i_i_i!:i:i;i__ii_:;ii_i!:i!__i:ii:_il.;i_;!ii4!_;.ii!_::i0:_:.i2_i:8i_wii_t.}/wi_t!.% 1. Theoretical Value = 17.8% 2. Theoretical Value = 0% 3. Theoretical Value = 0% 4. Theoretical Value = 5.95% 5. Theoretical Value = 60% 1. 12.48 wt./wt.% 2. 0.244 wt.A,_.% 3. 1.74 wt./wt.% 4. 8.84 wt./wt.% 5. 54.1 wt./wt.% COA023-018A Page 1of 3 INTERIM CERTIFICATE OF ANAL YSIS Centre Analytical Laboratories COA Reference #: 023-018A Date &Last Analysis: 08/31/00 Expiration Date: 08/31/01 Storage Conditions: Frozen O-10C Re-assessment Date: 08/31/01 _Purity = 100% - (sum of metal impurities, 1.45% +LC/MS impurities, 8.41%+Inorganic Fluoride, 0.59%+NMR impurities, 1.93%+organic acid impurities, 0.38%+POAA, 0.33%) Total impurity from all tests = 13.09% Purity = 100% - 13.09%= 86.9% 2Potassium is expected in this salt form and is therefore not considered an impurity. 3purity by DSC is generally not applicable to materials of low purity. No endotherm was observed for this sample. 4Sulfur in the sample appears to be converted to SO4 and hence detected using the inorganic anion method conditions. The anion result agrees well with the sulfur determination in the elemental analysis, lending confidence to this interpretation. Based on the results, the SO4 is not considered an impurity. 5TFA HFBA NFPA PFPA Tfifluoroacetic acid Heptafluorobutyric acid Nonofluoropentanoic acid Pentafluoropropanoic acid 6Theoretical value calculations based on the empirical formula, CsF17SO3K + (MW=538) This work was conducted under EPA Good Laboratory Practice Standards (40 CFR 160). COA023-018A Page2 of3 INTERIM CERTIFICATE OF ANAL YSIS Centre Analytical Laboratories COA Reference #: 023-018A LC/MS Purity Profile: Impurity C4 C5 C6 C7 Total wt./wt. % 1.22 1.33 4.72 1.14 8.41 Note: The C4 and C6 values were calculated using the C4 and C6 standard calibration curves, respectively. The C5 value was calculated using the average response factors from the C4 and C6 standard curves. Likewise, the C7 value was calculated using the average response factors from the C6 and C8 standard curves. Prepared By: David S. Bell Date Scientist, Centre Analytical Laboratories Reviewed By: John Flaherty Date Laboratory Manager, Centre Analytical Laboratories COA023-018A Page3 of3 I lat Ce i International, Ltd. ECOTOXICOLOGY & ANALYTICAL TESTING SERVICES September 27, 2000 Ms. Susan A. Beach 3M Corporation Environmental Laboratory 935 Bush Avenue 3M Building 2-3E-09 P.O. Box 33331 St. Paul, Minnesota 55133 Dear Susan: Enclosed please fred Addendums for Wildlife International, Ltd. Project Numbers 454A-101, 454A-102, 454A-103A, 54A-104, 454A-105,454A-106, 454A- 107, 454A-108 and 454A-109 If you have any questions, please let me know. Sincerely, -. _ ._ KurtR_Drottar SenioBriologist KRD/eyw8/3m Enclosures 8598 Commerce Drive Easton, Maryland 21601 -Tel.410-822-8600 Fax 410-822-0632 E-mail ecotox@wildlifeintemational.com European Office: Overscheenseweg IIA - i4t2 AA Naarden The Netherlands. Te_.31(0)356949261 Fax31(0)356948229 E-mailaleolx_ldOworldonline.nl