Document bbMZaroGb36L3LvevnKvQOVD

FR -- Pep May 30, 2000 Sstn PCaoumleMrN S510 26294 smE gn r. 9600= 1378. AR226 05'TS ; Ee Dr. Charles Auer Director Chemical Control Division Office of Pollution Prevention and Toxics United States Environmental Protection Agency 401 M Street, Southwest Room 403 East Tower (Mail Code 7405) Washington, D.C. 20460 FY1-00-001378 Re: InformationofPerfluorooctane Sulfonates And Related Compounds ~ UEIP Forms Dear Charlie: 85000000015 3M is enclosing the completed "Use and Exposure Information Profiles" or "UEIPs" for scuobmmpitotuanldtso rEePlaAt,edwteo npeerefdleudoraododcittiaonnealsutlifmoneattoesc.laArisfyexipndluasitnreiadlinhymgyiecnoevaenrdleotttheerrtoretlheeasMeay 18" information to ensure that the data in the profiles is accurate and placed in appropriate context. i"nThTeaebnlcel1osoefd tihnefodromcautmieonntcoevnteirtslecde:rt"aiSnulcfoomnpatoeudndPesrfrelluaotreodcthoempiecrafllsuoirnotohcetaEnnevisrulofnomneantte:as listed Sources, Dispersion, Fate and Effects" at 12 (March 1, 2000). Specifically the UEIPs provided cover the following chemicals: *Perfluorooctanesulfonyl fluoride *Perfluorooctanesulfonamide *Perfluorooctane sulfonylamido (ethyl) acetate *"PNe-reftlhuyo!rpoedrefcalnueosruolofcotnaanteesulfonamide "N-methylperfluorooctanesul fonamide *N-ethylperfluorooctane sulfonamidoethanol *N-methylperfluorooctane sulfonamidocthanol *N-ethylperfluorooctanesulfonamidoethy acrylate *N-ethylperfluorooctanesulfonamidoethyl methacrylate: *N-methyl perfluorooctanesulfonamidoethy! acrylate Co, , 1g Cre ~S A UEIP is not provided for oneofthe compounds, , perfluorohexane sulfonate, listed in Table 1 because it is not an octyl sulfonate. 10:21Hd 9- Kr 000 10531413L0d3d9d Page 2 Dr. Charles Auer `With respect to industrial hygiene information, you should be aware that each 3M plant that pcorropdourcaetsesiunldfuosntraitaeldhfylguioernoechgermoiucpa.ls3hMa'ssainndiunsdtursitarliahlyhgyigeineenipsrtoognrasmtafffoacnusdesisosnuptpaosrk-tbeadsbeyd a qeuxapnotsiutarteivaeslsye.ssQmueanltitaantidvceonatsrsoel.ssmEexnptossaurreespearrfeoirdmeendtibfiyedananidndausstsreisaslehdyqguiaelniitsatt.ivQeulaynatnidta/toirve aSosusrecsesmoerntarseianscalmupdleintga.sk-Tbahseedrepseurltssonoafltsheamapslsiensgsmfeonrtcserstuapipno,rstpedceicfiisciofnlsuoornocehxepmoiscuarles caonndt/roolr. Engineering controls are preferred, but personal protective equipment may be used on an interim basis or when effective engineering control is not feasible. In certain situations, 3M has gathered personal industrial hygiene monitoring data for the specific compounds and have included that data in the profile. In some situations, there is no chemical specific personal industrial hygiene monitoring data, but area/source monitoring data and/or surface wipe sampling data for the specific material may be available at the facility. These area/source sample results and/or surface wipe sample results are used to target areas with employee exposure potential as part of exposure assessment under M's industrial hygiene program and are not measurementsofactual employee exposures. Hence, they are not included with this submission. In other situations, neither personal sampling data nor area/source data have been collected fora specific chemical. The sample resultsofany air monitoring are compared to 3M's voluntary exposure guideline (EG) of 0.1 mg/m3 (milligrams of fluorochemical per cubic meterofair) for various fluorochemical compounds The EG is an 8-hour time-weighted average (TWA) personal breathing zone exposure chosen to minimize potential for uptake. Similar to the industrial hygiene program, each 3M facility that produces sulfonated fluorochemicals has one or more environmental engineers on-site and is also supported by a corporate and division level environmental organization. The environmental engineers assist the process engineers with calculations and emission estimates. The corporate environmental organization develops methods for analyzing emissions. In addition to these resources, several teams were established in recent years to identify, characterize and reduce specific fluorochemical emissions from the manufacturing sites. While analytical methods have improved over time, large variability still exists for certain matrices and compounds, so data availableforthis report is mostlyof a qualitative nature. Although limited monitoring data exists, most emission and waste estimates are based upon process modelsand engineering calculations. Engineering calculations, however, have limitations with respect to fluorochemicals because fluorochemical losses were not always included in the analysis of each intermediate step. `The accuracy of the emissions data submitted varies due to several factors. Batch process system emissions are difficult to measure due to quickly changing process conditions, venting pressures and difficulty in isolating processes to take measurements. Additionally, the unique characteristicsof these compounds cause them to behave differently from conventional compounds, and physical chemical data properties are not available for all intermediate reaction steps. PDra.gCeh2arles Auer Please do not hesitate to contact me at 651-733-6374 should you have any questions. Very truly yours, Hilo (P. Hoppe William A. Weppner, Ph.D. Director ESpnevciiraolntmyeMnattaelr,iHaelaMltahr,keStasfeGtryo&upRegulatory Affairs 3M Center, Building 236-1B-10 St. Paul, MN 55144-1000 Attachments