Document 6B9RjgO57b1NEEO0KyGzYpjMd
BIODEGRADATION (BOD/COD)
TEST SUBSTANCE
Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component ofFC-203. (1Octanesulfonicacid)(CAS # 2795-39-3).
Remarks: The 3M productionlotnumbers were not noted. The test sample isFC-203. Currentinformatioinndicatesitisa mixtureof 1.34% PFOS, 35% diethyleneglycolbutylether,37-85% water,20% ethyleneglycol, 2.66 % Sultonefoamer,3% sodium octylsulfate0,.1% sodium laurylsulfate,
and 0.05% tolyltfiazole.
The followingisan abbreviated summary of muldple biodegradation studies on FC-203. These studies apply to a mixture with incompletely characterized concentrations of impurities.Date does not accurately reftct the degradation potendat of the fluorochemical component of the testsample.
METHOD:
Method: Va@ous methods, most not noted. Type: BOD and Dichromate RefluxCOD GLP: No Year completed: 1973 - 1980 Contact time: 20 days lnoculum: Seed from varioussources.
RESULTS
Chemical Oxygen Demand (COD) range: 420,000 - 1,070,000mg/kg
BiochemicalOxygen
Demand (BOD) 5-Day: 1O-Day: 12-Day: 15-Day: 18-Day: 20-Day:
range:
206,250 - 560,000 mg/kg 450,000- 646,875 rrtpg 660,000 - 830,000 mg/kg 426,312 - 604,687 mg/kg
660,000 mg/kg 426,562 - 1,100,000nig/kg
Remarks: Testingwas conducted on the mixtureas describedintheTest Substance Remarks field.The valuesreportedapplytothatmixtureand not the fluorochemicalproportionalone.
CONCLUSIONS
No reliablceonclusionscan be derivedfrom these studies.The indicatioins thatthe majorityofthe productcomponents are readilybiodegradable.
Submitter: 3M Company, EnvironmentalLaboratory,P.O. Box 33331, St. Paul,Minnesota,55133
DATA QUALITY
ReliabilityK:limischranking= 3. Study lacksdescriptioannd recordsofthe method followed.The inoculum isnot properlycharacterizedT.he testing was conducted on a mixturewithchemicalshavingvaryingdegrees of biodegradabilitlye,adingto potentiamlisinterpretatiofnthe results.The sample puritywas not propedy characterizedand the studylacksanalytical confirmatioonfthe amount offluorochemicalproportioninthe solution.
REFERENCES
The studieswere conducted by the 3M Company, EnvironmentalLaboratory, St.Paul,MN, Lab Request numbers 1940 and 5360S in 1973.
OTHER
Last changed: 6/28/00
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LAB REQUEST No.
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Phone No. 509
Reque s-tdate:
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Sample Date: IJevJ '@tt,@To
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Comments
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File:
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Water and Wastewater REQUEST FOR LABORATORY WORK
Lab Request No.
TO: ENVIRONMENTAL ENGINEERING LABORATORY - BUILDING 53-6N
Requestor
Name: "gt4c-,D-A)-RequestDate
12-,
ProjectNo@7-t2O7--lrProb No 0 -? Code
Description: c::5
Sample Date:
Date Needed:
Hold Sample For -Days
Est.Time:
Hrs.
Lab Personnel
Date Rec'd.SamDle:. I I - -I a -
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Analyst C- r I*k%A@ t -%--
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Sample Description
Total Hardness, mg/i as CaC03 Calcium Hardness, mgA as CaC03 7'P-"Alkalinity,Mg/i as C8C03 "M" Alkalinity,mg/l as CaC03 TH Sulfate,mg/l as S04 Nitrate,mg/i as N03 Chloride, mg/l as Cl Silica,Mg/i as Si02 Fluoride, mg/i as F Ortho Phosphate, mg/l as P Total Phosphate, mg/i as P Total Chromium, mg/i as Cr ffe-x.Chromium, mg/l as Cr Total Cyanide, mg/l as CN Ferrocyanide, mg/i as CN
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Fecal Streptococcus, No./100 ml Ammonia Nitrogen, mg/l as N Tiedidahl Nitrogen, mg/i as N Oil and Grease, mg/i
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COPY
FORM 10"0-2-PWO
Bottle No.
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Blar*s: Sample Size
ENVIRONMENTAL. ENGINEERING LAD BOD WORK SHEET
Date: Dilution Water.& o@6Seed:
Description
D.O.
Bk Ave. I
Depletion 5 Day BOD Av
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Seed: PDA.*4
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Description
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Description
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Bottle No.
Sample Size -el
Description
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