Document 5yQgLbB80RmX3Jw0V26a8yQ5

AR 836 -- 0789 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) JIEST ~~ SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206 or L3243. (1-Octanesulfonic acid) (CAS # 2795-39-3). Remarks: The 3M production lot number was 501. The test sample is FC206. Current information indicates it is a mixture of 0.67% PFOS, 17.5% diethylene glycol butyl ether, 78.91% water, 1.33% Sultone foamer, 1% sodium octyl sulfate, 0.04% sodium lauryl sulfate, 0.5% polyoxyethylene monooctylphenyl ether, and 0.05% benzotriazole. The following summary applies to a mixture with incompletely characterized concentrations of impurities. Data may not accurately reflect toxicity of the fluorochemical component of the test sample. METHOD: 0000000 Method: Not given. Type: Acute static GLP: No Year completed: 1976 Species: Pimephales promelas Supplier: Not given. Analytical monitoring: Dissolved oxygen, pH, and temperature. Exposure period: 96-hours Statistical methods: LCs value calculated using graphic interpolation. Test fish age: Juveniles. Length and weight: Average length = 50 mm Average weight = 1.5 g (wet) Loading: Not given. Pretreatment: None - Test conditions: Dilution water: Carbon-filtered well water. Dilution water chemistry: Not given. Lighting: Not given. Stock and test solution preparation: Not given. Concentrations dosing rate: Once. Stabilityofthe test chemical solutions: Not given. Exposure vessels: Not given. Number of replicates: 1 Number of fish per replicate: Not given. Number of concentrations: five plus a blank control Water chemistry during the study: Temperature range (0-96 hours): 21-22 c 001523 PH range (0-96 hours): 67..07--67..90 mmg/gL ((c1o2n5t0rolmoelxlpoesxuproes)ure)" Dissol5ve.d05ox.y5gmegnlLra(ncgonetr(o0l-9e6xphoosuurrse)): 4.0-52 mg/L (1250 mg/L exposure)* * 1250 mg/L (intermediate concentration) exposure values used because the highest three concentrations resulted in total mortality by 72 hours. ESOS 000000 Nominal concentrations: Blank control, 500, 1250, 2500, 3750, and 5000 moll Element values: 96-hour LCs = 1500 mgll Element values based on nominal concentrations Remarks: Testing was conducted on the mixture as described in the Test Substance Remarks field. The values reported apply to that mixture and not the fluorochemical proportion alone. conclusions The FC-206 96-hour LCs for fathead minnow was determined to be 1500 mglL. Submitter: 3M Company, Environmerital Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133 patAQuALTY Reliability: Kiimisch ranking 3. Testing lacks record of methodology used and documentation. The sample purity was not properly characterized and - the study lacks analytical confirmation of the amount of fluorochemical proportion in the solution. REFERENCES TSth.isPasutlu,dyMNw,as19c7o6nducted by the 3M Company, Environmental Laboratory, o0 me0 r 00000000000 Last changed: 6/28/00. 001524 ~NUALLL TOXICITY WORK SHEET -- L | p rts Cute rolBE TestOrganism FatheadMinnow Avg. Weight Size re. trAris 5 Time Started 2:00pm Plotted Logg 1p 24glL. CarbonFitcore =vertwater bs Dilution Water_Carbon Filtered - Well Water oo 3 2 hrs Cm tiv eeI po mop Hm bo sd php PO 2 TM bo es sna 52 she PO 2 orpr 0 ; j asse[g]olvtwoooobJ[ee2sll5a]ss0lFaoclhi]o7,offaolcais]]aisosJoilbe]] 4 zis Las e[ kefasl 20 eoliST 0 Jerlaol 0 0 Jerlas] 0 1] [+[JF Ave2r0a0geoleleloH [Ho 1H] w]e `czments: Temperature >4 22 2 ! . Kg Calculation E EEEr RETLOT TTT T Ls E C Tiilhe2 i S SEH H IH LE BI TTe T eCr[e TH A Pedi] TY TERT =a HHL TS de eed Lodi Ue iE to & 10 20 30 07 se 6 70 80 5 .TM BEST COPY AVAILABLE ~~ * Survival sain es DOMES