Document Ex4qe4KxarE5V5ErGVZpaQp70

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ichmay alsobe referredtoas PFOS, FC-95, oras a component ofFX-3104. (1Octanesulfoniaccid)(CAS # 2795-39-3). Remarks: The 3M productionlotnumber was notnoted.The testsample isFX-3104, 6%. Currentinformatioinndicatesitisa mixtureof0.48% PFOS, 14.09% diethyleneglycolbutylether,59% water,17.6% ethyleneglycol, 1.44% sodium octylsulfate4,% inhibito2r.,0% polyoxyethylene monooctylphenylether,1.25% propane sultonefoamer,0.03% sodium lauryl sulfate,and 0.1% benzotriazole. The following summary applies to a mixture with incompletely characteilzedconcentrations of impurities.Data may not accurately reftct the toxicityof the tluorochemical component of the testsample. METHOD Method: OECD 209 Test type: Staticacute GLP: No Year Completed: 1985 Analyticalmonitoring: Dissolvedoxygen concentrations Statisticamlethods: Resultswere determinedby calculatioonfthe % inhibitioin respiratiornate. Test organism source: Activatedsludge mixed liquorcollectedfrom the Metro Waste Treatment Plant,St.Paul,MN. Test condition: Diluflonwater: Not given. Syntheticsewage: perOECD method Reference and testsolutionpreparation: Not given. Test vessels: Not given. Number of concentrations: fiveplusblankcontrol Temperature: Not given. Totalsuspended solidsand pH on day of testing:Not given. Element Basis: Respirationinhibitioans determined by oxygen consumption. RESULTS Nominal concentrations: 2 Blank controls1,00, 180, 320, 560, and 1000 mg/L Elementvalues: 30-minuteEC50=>1000mg/L 3-hourEC50 = >1000 mg/L Element valuesbased on nominal concentrabons. Remarks: Testingwas conducted on a mixtureas descdbed intheTest Substance Remarks field.The valuesreportedapplytothatmixtureand not the fluorochemicalproportionalone. CONCLUSIONS The testsubstance 3-hourEC50 foractivatedsludge respiratioinnhibitiownas determined tobe >1000 mg/L. Submifter: 3M Company, EnvironmentalLaboratory,P.O. Box 33331, St. Paul,Minnesota,55133 DATA QUALITY ReliabilityK:limischranking3. Study lacksdescdptionand recordsofthe method followed.The inoculumwas not properlycharactedzed.There isno charactedzabon ofthe testsubstance puritya,nd thestudylacksanalytical confirmationoftheamount offluorochemicalproportioninthe solution. REFERENCES Thisstudywas conducted by the 3M Company, EnvironmentalLaboratory, St.Paul,MN, Lab Request number Cl 111-2,1985. OTHER Last changed: 6/26/00 -z@ I-It -,C -z' YQb t7 YI-I vi b IG7 rz gt4iL Oft T ri 9xiw Va-n-b a bw a=-Jsa-Lllou-isli"l ),U@rAO L rVI%QSiO IH 1-c-a AcnmtTez M %OPBIALI -TOY,%CATY OK4esEt4 cou6um:rnovj =-res@r S"SSTAW.6 C ce cmalpi aKd WIIL) 0oi-Lv-p= OK-I%1)4:L@,.wcoA= 10oo Couv@Ok-@M Ai L4wiW/4 00 IVio z5w N,oo ,so boel tO@S' .4e2-4 '40000 /0 0?1 *:PL-R CEUT -m qvr-pr--IKL94A