Document Nez7477YXe6XjOZ1vRO0LgKpR

Afc 6 . O / A C T IV A T E D S L U D G E R E S P IR A T IO N IN H IBITIO N T E ST T E S T S U B S T A N C E __________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to a s P F O S , FC-95, or a s a component of FC-600. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, C A S # 2795-39-3) Remarks: The 3 M production lot number w as 628. The test sam ple is FC-600. Current information indicates it is a mixture of 1.0% P F O S, 8 1 .2 0 % water, 1 2 .0 0 % diethylene glycol butyl ether, 1.00% sodium octyl sulfate, 2 .0 0 % propane Sultone foamer, 1.0 0% sodium decyl sulfate, 0 .8 5 % xanthan gum, 0 .1 % N-(3-chloroallyl) hexaminium chloride, 0 .8 0 % starch, and 0.05 % benzotriazole. The following summary applies to a mixture with incompletely characterized concentration o f impurities. Data may not accurately reflect the the inhibition b y the fluorochemical component of the test sample. M E T H O D ____________________________________________________________ Method: 3M Protocol, Reference E A R 11/8/79 Test type: Acute static GLP: No Year Completed: 1983 Analytical monitoring: D issolved oxygen concentrations Statistical methods: Graphed Test organism source: Activated sludge mixed liquor collected from the Metro W astew ater Treatment Plant, St. Paul, M N Test condition: Dilution water: Deionized water. Synthetic sewage: Not noted Reference and test solution preparation: A stock solution of the test substance w as created by diluting 0.60 gram s of test sam ple to 100 mL with dilution water. It is not noted exactly how the 1,000 mg/L test solution is prepared from this stock solution. Test vessels: Not noted Number of concentrations: 1 plus 1 blank control Temperature: Not noted Total suspended solids and pH on day of testing: Not noted Element Basis: Respiration inhibition a s determined by oxygen consum ption. R E S U L T S __________________________ _________________________________ Nominal concentrations: Blank control and 1,000 mg/L 002016 Elem ent values: N o acute inhibitory effect on activated sludge respiration rate at 1000 mg/L with a contact time of 4 minutes, 55 seconds. Elem ent values based on nominal concentrations. R e m arks: Testing w as conducted on the mixture a s described in the Test Substance Rem arks field. The value reported applies to that mixture and not the fluorochemical proportion alone. C O N C L U S IO N S ______________________________________________________ Limited contact time estim ates that FC-600, Lot 628 is not expected to inhibit the activity of activated sludge. Subm itter: 3M Com pany, Environm ental Laboratory, P.O. Box 33331, St. Paul, Minnesota, 55133 D A T A Q U A L IT Y ______________________________________________________ Reliability: Klim isch ranking 3. Testing lacks record of m ethodology used. The method w as not an agency approved method. Test duration w as not long enough to definitively determine if there might be other effects that might occur during typical wastewater treatment retention times. The sam ple purity w as not properly characterized and the study lacks analytical confirmation of the amount of fluorochemical proportion in the solution. R E F E R E N C E S ______________________________________________________ T his study w as conducted by the 3M Environm ental Laboratory, St Paul, MN, Lab Request number 8875, 1983. O T H E R ______________________________ _____________________________ L a st ch an ge d : 6/28/00 002017 9 8 7 6 5 k 3 2 1 O 002018 3M Environmental Laboratory Acute Toxicity of a Compound (Substance) to A c tiv a te d Sludge Mixed Liquor Protocol Reference: EAR 11/8/79 Lab request no.: -S'" Date; - J o Analyst ^ The activated sludge mixed liquor was collected from the St. Paul/Minneapolis Metro Wastewater Plant on o. / , / / p _____ Sample description: P C - (>0O , I^ o 7 - C ^.'Z C .2 / 2. ll ) Preparation of stock solution: /, ->1 grams of sample were diluted to / C with deionized reagent water. Date of preparation: Xv T1ME min. sec. ,vM^JERIAL :NW i N mg/1 mg/1 Ae ?SLU0GE MIXTURE S# 30 Zi?<> , .C r" w i ' / -- 7.3o - X-- 3-- i --- s'/ 3 . ^ / .? r T -- 6 .7 -- c ---V COMMENTS: BEST COPY AVAILABLE 002019