Document jBLB9Drb0oj3JBX5abDJLJ9QQ

ACUTE TOXICITY TO FISH (RAINBOW TROUT) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, or as a component ofFC-203. (1Octanesulfonicacid)(CAS # 2795-39-3). Remarks: The 3M productionlotnumber was not noted. The testsample isFC-203. Currentinformatioinndicatesitisa mixtureof 1.34% PFOS, 35% diethyleneglycolbutylether,37.85% water,20% ethyleneglycol,2.66 % Sultonefoamer,3% sodium octylsulfate0,.1% sodium laurylsulfatea,nd 0.05% tolyltdazole. The followingsummafy applies to a mixture with incompletely characterized concentrations of impurities.Data may not accurately retlecttoxicityof the fluorochemical component of the testsample. METHOD: Method: Not given. Type: Continuous flow GLP: No Year completed: Not given. Species: Salmo gairdneri Supplier: Not given. Analyticalmonitoring: pH, and DO Exposure period: 96-hours Statisticamlethods: Not given. Test fishage: Not given. Length and weight: Not given. Loading: Not given. Pretreatment: None Test conditions: Dilutionwater: Not given. Dilutionwater chemistry: Not given. Lighting:Not given. Stock and testsolutionpreparation:Stock solutioonf 160 g/L prepared, then dilutedwithdilutiownater to preparethe sample concentrations. Concentrations dosing rate: Flow-through Stabilityof the testchemical solutions: Not given. Exposure vessels: Not given. Number of replicates:Not given. Number of fishper replicate:Not given. Number of concentrations: fiveplusa blankcontrol Water chemistry during the study: pH range (0 -96 hours): 7.3- 7.8 Dissolved oxygen range (0-96hours): 7.2- 9.0 mg/L RESULTS Nominal concentrations: Bk control2,5,50, 100,200, and 400 mg/L. Element values: 96-hourLC50 = >400 mg/L Element valuesbased on nominalconcentrations Remarks: Testingwas conductedon themixtureas describedintheTest Substance Remarks field.The valuesreportedapplytothatmixtureand not the fluorochemicaplroportioanlone. CONCLUSIONS The testsample 96-hourLC50forrainbowtroutwas determinedto be >400 mg/L. No mortalitoyr sublethaelffectsobserved atthisconcentration. Submifter: 3M Company, EnvironmentalLaboratoryP,.O. Box 33331, St. Paul,Minnesota,55133 DATA QUALITY ReliabilityK:limischranking= 3. Testinglacksrecordofmethodology used and data sheets.Sample puritywas notpropedy characterizeadnd thestudy lacksanalyticaclonfirmatioonftheamount offluorochemicaplroportioninthe solution. REFERENCES This studywas conductedby the3M Company, EnvironmentalLaboratory, St.Paul,MN. OTHER Last changed: 6/27/00 7b >-2ccoVfry,) nAQ (J' > 4-co 14 Ct 416 -@4-.Q vv 160 v rc--aCX3---LL)a,, Li e2D---o.,L4-,dC)o oA A-a4-.L@ t7- q.(D c)6+/ 00-C OC)l - ---------- 9t?