Document rpNmZZ0DD8MkajZe34mK5gzRe

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON. KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 Ro b e r ta . Bilott (513) 357-9638 bilott@taftlaw.com TAFT, STETTINIUS & HOLLISTER LLP 425 WALNUT STREET, SUITE 1800 CINCINNATI, OHIO 45202-3957 513-381-2838 FAX: 513-381-0205 www.taftlaw.com CLEVELAND OHIO OFFICE 3500 BP TOWER 200 PUBLIC SQUARE CLEVELAND. OHIO 44114-2302 216-241-2838 FAX: 216-241-3707 COLUMBUS, OHIO OFFICE 21 EAST STATE STREET COLUMBUS, OHIO 43215^1221 614-221-2838 FAX:614-221-2007 4R6 - October 29, 2002 TELECOPY AND REGULAR U.S. MAIL Christopher Jones Director, Ohio Environmental Protection Agency 122 South Front Street P.O. Box 1049 Columbus, OH 43216-1049 Ohio EPA, Southeast District Office Air Pollution Group 2195 Front Street Logan, OH 43138 Robert Hodanbosi Director, Division of Air Pollution Control Ohio Environmental Protection Agency 122 South Front Street P.O. Box 1049 Columbus, OH 43216-1049 tA > C_ cn X Re: Emissions Of Ammonium Perfluorooctanoate (C-8) Into Ohio Air From DuPont's Washington Works Facility In Wood County. West Virginia_________________ I " Dear Gentlemen: Our law firm currently represents the Plaintiffs in a class action lawsuit pending against E.I. duPont de Nemours and Company ("DuPont") and the Lubeck Public Service District ("LPSD") of Wood County, West Virginia styled Jack W. Leach, et al. v. E.I. duPont de Nemours and Company and Lubeck Public Service District (Circuit Court of Wood Cty, WV, Civil Action No. 01-C-608) involving claims that DuPont has improperly released ammonium perfluorooctanoate (CAS. No. 3825-26-1) (a/k/a "C-8") into the environment from its Washington Works plant in Wood County, West Virginia. Although C-8 is not specifically regulated in either West Virginia or Ohio in terms of air emissions, Year 2000 air emissions modeling data generated by DuPont and the State of West Virginia's Department of Environmental Protection indicate that the emissions of C-8 from DuPont's Washington Works have resulted in concentrations of C-8 in the air over communities in Ohio at levels far exceeding all known regulatory standards for C-8 air emissions. More specifically, our research to date indicates that those jurisdictions that actually have established regulatory standards for C-8 in air consistently have adopted standards of between 0.01 mg/u3 and 0.1 mg/u3 as the appropriate safety level for C-8 in air (typically "healthy"worker populations). (See Exhibit A (copies of air f4 000193 Christopher Jones Robert Hodanbosi Ohio EPA, Southeast District Office October 29, 2002 Page 2 emissions standards from California, Michigan, New Hampshire, Canada (Saskatchewan, Ontario, and British Columbia), Belgium, New Zealand, and Holland).) DuPont's own Year 2000 air modeling data confirms levels of C-8 in local community air in Ohio as high as 0.8 mg/u3 and over 2 mg/u3 at DuPont's fence line. (See Exhibit B.) Residents in some of these communities also are receiving additional doses of C-8 in their drinking water, which has been contaminated by C-8 releases from DuPont's Washington Works facility, and may be exposed to C-8 in soils. (See Exhibit C.) Unfortunately, despite the State of West Virginia's possession of DuPont's air modeling data for many months, the State of West Virginia has, to date, done nothing to require DuPont to take action to remediate its C-8 air releases, despite having the authority to do so under a Consent Order entered between DuPont and the State of West Virginia in November of 2001. (See Exhibit D.) We understand that the State of West Virginia has delayed taking any such action while it works with DuPont to see if DuPont can generate current stack emissions data showing C-8 emissions lower than a new C-8 air "screening level" recently adopted by the State of West Virginia through a "C-8 Assessment of Toxicity Team" ("CAT Team") established under the November 2001 Consent Order with DuPont. The CAT Team, which included several representatives of DuPont and no members from Ohio EPA, selected a median "screening level" for C-8 in air of 1 mg/u3, which is several magnitudes higher than any regulatory limit for C-8 that we are aware of in any other jurisdiction. The CAT Team's median "screening level" is even higher than DuPont's own internal air standard for C-8 of 0.3 ug/m3 and higher than WVDEP's earlier preliminary screening level for C-8 of 0.02 ug/m3 (see Exhibit E). West Virginia also has said nothing about the cumulative dose that local residents are receiving through C-8 in air, water and possibly soils. WVDEP's lack of action contrasts dramatically with the new "high priority" level of concern being expressed by USEPA with respect to C-8 toxicity, particularly given its recently-confirmed reproductive and developmental effects. (See Exhibit F) Because DuPont's own air emissions modeling data from its Washington Works plant confirms that DuPont's C-8 emissions are exceeding all known regulatory limits for C-8 in Ohio's air and the State of West Virginia has done nothing to require DuPont to stop or abate those 000194 Christopher Jones Robert Hodanbosi Ohio EPA, Southeast District Office October 29, 2002 Page 3 emissions, we hereby request on behalf of our clients that Ohio EPA take immediate action to require DuPont to stop and remediate its releases of C-8 into the air in Ohio. We look forward to confirmation as to how Ohio EPA plans to proceed in this matter. Thank you. - Robert A. Bilott RAB/mdm Enclosures (by regular U.S. mail) cc: R. Edison Hill, Esq. (w/ ends.) Larry A. Winter, Esq. (w/ ends.) Gerald J. Rapien, Esq. (w/ ends.) Greg Smith, Esq. (Ohio EPA Legal) (w/ ends.) Lillian Pinzon, Esq. (USEPA, Region 5) (w/ ends.) Janet Sharke, Esq. (USEPA, Region 3) (w/ ends.) 000195 0*0196 Minnesota Rules, 5206.0400 H rdous Substances Page 1 o f27 EiO f 1 Lab Safety R e tu rn to izb Safety G uestbook | Help | Mr. Bolton | Home iMinnesota Rules, 5206.0400 HAZARDOUS SUBSTANCES (Copyright 2000 by the Office of Revisor of Statutes, State of Minnesota.) Subpart 1. In general. The commissioner has determined that the list of hazardous substances in subpart 5 shall be covered by the provisions of this chapter. The hazardous substance list includes the majority of hazardous substances that will be encountered in Minnesota; it does not include all hazardous substances and will not always be current. Employers shall exercise reasonable diligence in evaluating their workplace for the presence of other recognized hazardous substances and assure that employees are provided with the rights stated in this chapter. Subp. 2. Exemptions. Substances or mixtures within the categories in items A to K are exempt from coverage under this standard. A. Products intended for personal consumption by employees in the workplace. B. Consumer products packaged for distribution to, and used by, the general public, including any product used by an employer or the employer's employees in the same form, concentration, and manner as it is sold to consumers, and to the employer's knowledge, employee exposure is not significantly greater than the consumer exposure occurring during principal consumer use of the product. C. Any article, including but not limited to an item of equipment or hardware, which contains a hazardous substance, if the substance is present in a solid form which does not create a health hazard as a result of being handled by the employee. D. Any hazardous substance that is bound and not released under normal conditions or work or in a reasonably foreseeable occurrence resulting from workplace operations. E. Products sold or used in retail food sale establishments and all other retail trade establishments, exclusive of processing and repair work areas. F. Any waste material regulated pursuant to the federal Resource Conservation and Recovery Act, Public Law Number 94-580, but only with respect to any employer in a business which provides a service of collection, processing, or disposal of such waste. G. Waste products labeled pursuant to the Resource Conservation and Recovery Act. If hazardous substances make up the waste product, the employer must assure that mixing of incompatible substances does not occur. H. Any substance received by an employer in a sealed package and subsequently sold or transferred in that package, if the seal remains intact while the substance is in the employer's workplace. I. Any substance, mixture, or product if present in a physical state, volume, or mixture concentration for which there is no valid and substantial evidence that a significant risk to human health may occur from exposure. http://ideaplace.org/labsafety/MN_hazardous_substances.html M t in 11 /20/20 01 " Minnesota Rules, 5206.0400 H a r 'ous Substances Page 3 o f 27 J. Fume - Small solid particles formed by the condensation of vapors of solid materials. K. "Gases" - Refers to displacement o f air asphyxiation hazard. L. "Skin" - If a potential for absorption from skin contact merits special consideration, the word, "skin" follows the substance name. M. (number) - The number in parentheses following each substance is the American Chemical Society's Chemical Abstract Service (CAS) number for that substance. A particular substance may be known by more than one name. The CAS number eliminates the confusion caused by synonyms. N. a = Alpha. O. P = Beta. Subp. 5. List of hazardous substances. List of hazardous substances: A. Hazardous substances beginning with the letter A: (1) Abate (see Temephos) (2) *A-a-C (2-Amino-9H-pyrido[2,3-b]indole) R (3) *Acetaldehyde (75-07-0) AO (4) *Acetamide R (5) Acetic acid (64-19-7) AO (6) Acetic anhydride (108-24-7) AO (7) Acetone (67-64-1) AON (8) Acetone cyanohydrin (75-86-5) IN (9) Acetonitrile-skin (75-05-8) ANO (10) Acetophenone (98-86-2) AI (11) *2-Acetylaminoflourene (53-96-3) ONT (12) Acetylene (74-86-2) AN (13) Acetylene dichloride (see 1,2-Dichloroethylene) (14) Acetylene tetrabromide (79-27-6) AO (15) Acetylsalicylic acid (Aspirin) (50-78-2) A (16) Acrolein (107-02-8) AO (17) *Acrylamide-skin (79-06-1) ANOR (18) Acrylic acid (79-10-7) A (19) *Acrylonitrile-skin (107-13-1) ANORT (20) *Actinomycin D (50-76-0) R (21) Adipic acid (124-04-9) A (22) Adiponitrile (11 l-69-3)-skin A (23) *Adriamycin (23214-92-8) RT (24) *AF-2 [2-(2-fliryl)-3-(5-nitro-2-furyl) acrylamide] (3688-53-7) R (25) *Aflatoxins (1402-68-2) RT (26) Alkanes N (27) *Aldrin-skin (309-00-2) AN (28) Ally 1alcohol-skin (107-18-6) AO (29) *Allyl chloride (107-05-1) ANO (30) Allyl glycidyl ether (AGE)-skin (106-92-3) ANO (31) Allyl isothiocyanate-skin (57-06-7) I (32) Allyl propyl disulfide (2179-59-1) AO http://ideaplace.org/labsafety/MN_hazardous_substances.html 000198 11/20/2001 Minnesota Rules, 5206.0400 H ^ardous Substances Page 4 of 27 (33) a-Alumina (1344-28-1) A (34) Aluminum pyro powders (7429-90-5) A (35) Aluminum welding fumes (7429-90-5) A (36) Aluminum, soluble salts (7429-90-5) A (37) Aluminum, metal dust (7429-90-5) A (38) Aluminum oxide (1344-28-1) A (39) Aluminum, alkyls (7429-90-5) A (40) *2-Aminoanthraquinone (117-79-3) T (41) *para-Aminoazobenzene R (42) *ortho-Aminoazotoluene R (43) p-Aminobenzoic acid (150-13-0) I (44) Aminobiphenyl (see 4-Aminodiphenyl) (45) *4-Aminodiphenyl-skin (92-67-1) ANOT (46) 2-Aminoethanol (see Ethanolamine) (47) *l-Amino-2-methylanthraquinone (82-28-0) T (48) *2-Amino-5-(5-nitro-2-furyl)-l,3,4-thiadiazole R (49) 2-Aminopyridine (504-29-0) AO (50) 3-Amino 1,2,4-triazole (see Amitrole) (51) *Amitrole (61-82-5) ART (52) Ammonia (7664-41-7) ANOS (53) Ammonium chloride, fume (12125-02-9) A (54) Ammonium perfluorooctanoate-skin (3825-26-1) A (55) Ammonium sulfamate (7773-06-0) AO (56) n-Amyl acetate (628-63-7) AO (57) sec-Amyl acetate (626-38-0) AO (58) *Analgesic mixture containing phenacetin R (59) *Aniline and homologues-skin (62-53-3) AO (60) *Anisidine (o-p isomers)-skin (29191-52-4) AOT (61) *o-Anisidine hydrochloride (134-29-2) T (62) *Anthracene oils R (63) Antimony and compounds, as Sb (7440-36-0) ANO (64) *Antimony trioxide, handling and use, as Sb production (1309-64-4) A (65) ANTU (a-Naphthyl thiourea) (86-88-4) AO (66) *Aramite'' (140-57-8) R (67) Argon (7440-37-1) A (68) *Arsenic, elemental inorganic, and organic compounds, as As (7440-38-2) ANORT (69) Arsine (7784-42-1) ANO (70) *Asbestos (all forms) (1332-21-4) ANORT (71) Asphalt (petroleum) fmes (8052-42-4) AN (72) Atrazine (1912-24-9) A (73) *Auramine (technical grade) (492-80-8) R (74) *Azaserine R (75) *Azathioprine (446-86-6) RT (76) Azinphos-methy 1-skin (86-50-0) AO B. Hazardous substances beginning with the letter B: (1) Barium, soluble compounds, as Ba (7440-39-3) AO (2) Barium, sulfate (7727-43-7) A (3) Baygon (Propoxur) (114-26-1) A (4) Baytex (see Fenthion) (5) Benomyl (17804-35-2) A http://ideaplace.org/labsafety/MN_hazardous_substances.html M 01I9 11/20/2001- OSHA Designated Hazardous Chemicals Page 1 of 1 DhASI.S HOME I Biosafety Information | Safety Manuals Section 7 OSHA Designated Hazardous Chemicals According to the OSHA Hazard Communication Standard (1910.1200). a hazard determination must consider the chemicals listed in the following sources to be hazardous: 1. Chemicals regulated bv OSHA in 29 CFR Part 1910. Subpart Z. 2. Threshold Limit Values for Chemical Substances and Physical Agents in the Work Environment, American Conference of Governmental Industrial Hygienists (latest edition). 3. National Toxicology Program, Annual Report on Carcinogens (latest edition). 4. International Agency for Research on Cancer Monographs (latest edition). The substances found in the above sources (December 1990) have been compiled in Appendix L. The fact that a chemical is not listed does not mean it is not hazardous. Any chemical that presents a potential health or physical hazard to which employees may be exposed must be included in the hazard communication program. Chemical Safety Manual Contents Health and Safety Manual Contents Office o f Health and Safety, Centersfor Disease Control and ' a_ Prevention, J H IItA S lS /600 Clifton RoadN.E., Mail Stop F05 Atlanta, Georgia 30333, USA HOME Last Modified: 1/2/97 r~rw'i Send us vour Comments. - http://www.cdc.gov/od/ohs/manugil/chemical/chmsaf7.htm 000200 11/26/20Q1 rtjrr^ m jL X K. Page 1 of 7 APPENDIX K PELs AND TLV's FOR CHEMICAL SUBSTANCES The Michigan Occupational Safety and Health Administration and the American Conference of Governmental Industrial Hygienists (ACGIH) have determined safe exposure limits for work with particularly hazardous chemicals. The Permissible Exposure Limits (PELS) are MIOSHA standards, which must be upheld by the employer at all times. In some cases, the Threshold Limit Value (TLV) established by ACGIH may be lower than the OSHA PEL. In these cases, employers must strive to keep exposures as low as reasonably achievable and follow the TLV'S. Substances followed by the word skin refer to the potential for significant adsorption through the skin. Note: PELs and TLV's are explicitly defined in the glossary section of the appendices. CHEMICAL PEL TWA PEL TWA TLV TLV TWA TWA TLV TLV STEL STEL ppm mg/m3 ppm mg/m3 ppm mg/m3 Acetaldehyde 200 360 25(C) 45(C) Acetic acid 10 25 10 25 15 37 Acetic anhydride 5 20 5 21 ooin Acetone 1000 2400 1188 750 1782 Acetone cyanohydrin as CN-Skin 4.7(C) 5(C) Acetonitrile 40 67 60 101 Acetophenone 10 49 Acetylene-simple asphyxiant 2-Acetylaminofluorene-No occupational exposure limits established Acetylene tetrabromide 1 14 1 14 Acetylsalicylic acid (Aspirin) 5 Acrolein 0.1 0.25 0.1 0.23 0.3 0.69 Acrylamide-Skin 0.3 0.03 Acrylic acid-Skin 2 5.9 Acrylonitrile-Skin 2 2 4.3 Adipic acid 5 Adiponitrile-Skin 2 8.8 Aldrin-Skin 0.25 0.25 Allyl alcohol-Skin 25 2 4.8 4 9.5 Allyl chloride 1 3 13 2 6 Allyl glycidyl ether (AGE) 10(C) 45(C) 5 23 10 47 Allyl propyl disulfide 2 12 12 3 . 18 Aluminum metal 5 Metal Dust 10 1 http;//www.orcbs.msu.edu/chemical/chp/appendixkal.html 000201 11/26/2001 AiTfcNDlX K Page 2 of 7 1 Pyro powders, as A1 5 Welding fumes, as A1 5 Soluble salts, as A1 2 Alkyls, as A1 2 Aluminum oxide 10 5 10 4-Amino diphenyl-Skin-No exposure by any route shall be permitted (respiratory, skin or oral) 2-Aminopyridine 0.5 2 0.5 1.9 Amitrole 0.2 Ammonia 50 35 25 17 35 24 Ammonium chloride fume 10 2 0 Ammonium perfluorooctanoate-Skin 0.01 Ammonium sulfamate 10 n-Amyl acetate 100 525 100 532 sec-Amyl acetate 125 650 125 665 Aniline & homologues-Skin 5 19 2 7.6 o and p-Anisidine-Skin 0.5 0.1 0.5 Antimony & compounds, as Sb 0.5 0.5 Antimony trioxide production-exposure by all routes should be carefully controlled to levels as low as possible ANTU 0.3 Argon-simple asphyxiant Arsenic, elemental & inorganic compounds except arsine, as As > 0.5 0.01 Arsine 0.05 0.2 0.05 0.16 Asbestos Amosite 0.5 f/cc Chrysotile 2 f/cc Crocidolite 0.2 f/cc Other forms 2 f/cc Asphalt (petroleum) fumes 5 Atrazine 5 Azinphos-methy 1-Skin 0.2 0.2 Barium 0.5 0.5 Barium sulfate 5 10 Benomyl 5 0.84 10 Benz[a]anthracene |0.2 |Benzene-Skin |t | |0.5 !|1.6 1)2.5 ||8 | http://www.orcbs.msu.edu/chemical/chp/appendixkal.html 000202 11/26/2001 6 l A ADC Appendix t Page I of 4 8 CCR Appendix t Cal. Admin. Code tit. 8, Appendix t BARCLAYS OFFICIAL CALIFORNIA CODE OF REGULATIONS TITLE 8. INDUSTRIAL RELATIONS DIVISION 1. DEPARTMENT OF INDUSTRIAL RELATIONS CHAPTER 4. DIVISION OF INDUSTRIAL SAFETY SUBCHAPTER 7. GENERAL INDUSTRY SAFETY ORDERS GROUP 16. CONTROL OF HAZARDOUS SUBSTANCES ARTICLE 107. DUSTS, FUMES, MISTS, VAPORS AND GASES This database is current through 11/02/2001 Register 2001, No. 44. Appendix to section 5155 (A) Computation for Exposures to Contaminants with Independent Health Effects. The 8-hour time-weighted average concentration (TWA) of a single substance to which an individual is exposed during a workday shall be calculated using the following formula to determine compliance with the PEL specified in Table AC-1. TUA = C<<sub>>lT<<sub>>l + C<<sub>>ET<<sub>>2 * * * C<<sub>>nT<<sub>>T<<sub>>n ........................... . a EFNal3 where T is the duration in hours of the exposure to a substance at the concentration C* For multiple substances with independent health effects. an independent comparison of each TUA with the corresponding PEL shall be made to determine compliance* ' 3al Note: Eight (6) is used as denominator regardless of total hours of workday. EXAHPLE: To illustrate the use of this formula. assume an employee is exposed to airborne toluene at a concentration of ISO ppm for 2 hours-. 7S ppm for 3 hours, and SO ppm for 4 hours during a T-hour workday: TUA = C(ISC) x 2) + (75 x 3) (SO x 4)3/6 IFNalJ = 11 ppm* The series of exposures in this example are equivalent to an 6-hour exposure at a concentration of "U ppm which is below the PEL value of 100 ppm specified for toluene by Table AC-1* (B) Computation for Exposures to Contaminants with Additive Health Effects* In the absence of information to the contrary, the adverse health effects of exposure to two or more toxic materials during the workday shall beconsidered additive and the following formula shall be used for calculating D. the fraction of the allowable daily exposure* TUA<<sub>>! * TUA<<sub>>2 * !> PEL<<sub>>l PEL<<sub>>2 TUA<<sub>>n PEL<<sub>>n where TUA is the time-weighted average concentration of a particular substances ' http://web2.westlaw.com/result/text.wl?RecreatePath=/Search/defauIt.wI&RS;=WLW2.69.. 11/21 /2Q01 000293 8 CA ADC Appendix t Page 2 of 4 involved in the exposure (as calculated by the formula in section (A) of this Appendix)-, and PEL is the corresponding permissible exposure limit for that substance as specified by Table AC-1- The value of D shall not exceed unity. Health effects for multiple contaminants are not considered additive when different organs of the body are affected by individual substances-, or where the same effect (such as narcosis) is produced by two substances but the PEL for one substance is based on another effect- For example-, an exposure to 1 ppm vinyl chloride would not add signi ficantly to the narcotic effect of 100 ppm toluene-, nor would 100 ppm toluene add to the carcinogenic effect of vinyl chloride- TABLE AC-1 PERC1ISSIBLE EXPOSURE LIMITS FOR CHEdICAL CONTAHINANTS ENote: The following TABLE/FORd is too wide to be displayed on one screen. You must print it for a meaningful review of its contents- The table has been divided into multiple pieces with each piece containing information to help you assemble a printout of the table- The information for each piece includes: (1) a three line message preceding the tabular data showing by line and character * the position of the upper left-hand corner of the piece and the position of the piece within the entire tabled and (2) a numeric scale following the tabular data displaying the character positions-! ******** This is piece 1- -- It begins at character 1 of table line 1- ******** Chemical Abstracts Registry Number E F N (a )! 75070 U4117 106247 L7b41 7S6bS 7sasa iaab2 5311,3 7461,2 540510 7127b 71345 50762 10702a 710bl 71107 107131 PEL C F N ( d )1 Skin IF- N (b )3 Name EFN(c)3 ppm IF N (e )3 1 mg/d<<super>>3 C F N (f )3 Acetaldehyde Acetic acid Acetic Anhydride Acetone 25 45 10 25 5 20 750 1760 Acetone cyanohydrin as CN 4-7 5 S Acetonitrile 40 Acetophenone 10 41 s 2-Acetyl aminofluorene. N -f luoren-2-y1 acetamide', see Section 5201 Acetylene C F N (h- )3 Acetylene di chloride*. see 1.2-Dichloroethylene Acetylene tetrabromide: 1 14 1.1.2i2-tetrabromoethane Acetylene tetrachloride', see 1.1.2.2- Tetrachloroethane Acetylsalicy lie acid 5 (Aspirin) Acrolein 0-1 0-25 s Acrylamide - 0-03 s Acrylic acid 2 5-1 s Acrylonitrile', see Section 2 4-5 001214 http://web2.westlaw.com/result/text.wl?RecreatePath=/Search/default.wl&RS=WLW2.69<.. 11/21/2001 fi '-A ADC Appendix t Page 3 of 4 124041 Ulb13 301002 107151, 107051 10b123 2171511 1344251 S S s s 300125 7047541 b37127 1300735 12b71 141435 11515 504210 bl52S 7bb4417 352521,1 12125021 1002517 77730b0 b26b37 b2b350 b2533 21111524 s s s s 5b564 7440371 7440352 7754421 1332-21-4 5213 Adiptic acid Adiponitrile Aldrini 1,2,3,4,10,10-hexac- hloro-l,4,4a,5,5,flahexahydro-endo-l,2-exo-5,5dimethanonaphthalene Allyl alcohol Allyl chloride Allyl glycidyl ether; AGE Allyl propyl disulfide Alumina; see Particulates not otherwise regulated Aluminum, alkyis (not otherwise classified) Aluminum soluble salts Aluminum metal and oxide Total dust Respirable fraction CFN(n)3 Aluminum pyro powders Aluminum welding fumes Aluminum distearate Aluminum stearate Aluminum tristearate Aminodimethylbenzene; see Xyl idene 4-Ami nodi phenyl; see Section 5201 2-Aminoethanol; see Ethanolamine 2-Aminonapthalene; see beta-Naphthylamine, Section 5201 2-Aminopyridine Amitrole Ammonia Ammonium perfluorooctanoate Ammonium chloride fume Ammonium stearate Ammonium sulfamate Total dust Respirable fraction EFN(n)3 n-Amyl acetate sec-Amyl acetate (all isomers and mixtures) Aniline Anisidine (ortho and para isomers) Antimony and compounds, as Sb antu; 1 - (1-naphthyl)-2-thiourea", Bantu; Rattrack Argon Arsenic and inorganic arsenic compounds; see also Section 5214 Arsenic, organic compounds, as As Arsine; AsH<<sub>>3 Asbestos (including actinolite, amosita anthophyllite, chrysotile, crocidolite, and 2 2 1 5 2 - - - - - - 0-5 25 - - 100 125 2 0.1 - (h) 0.01 0.05 5 5.5 0.25 5 3 22 12 2 2 10 5 C FN ( n )3 5 5 10 10 10 2 0-2 15 0-01 10 10 10 5 532 bbS 7 b 0 5 0.5 0.3 0-2 0-2 000205 http://web2.westlaw.com/result/text.wl?RecreatePath=/Search/default.wl&RS=WLW2.69.. 11/21/2001 v a s h i n g t o n s i a t e REGrs t e r Page 1 of 18 WSR 99-20-005 PERMANENT RULES PUGET SOUND CLEAN AIR AGENCY [ Fifed September 24, 1999, 9:53 a.m. , effective November 1, 1999 ] Date of A doption: Septem ber 9, 1999. P u rp o s e : To i d e n t i f y s p e c i f i c c h e m i c a l s t h a t a r e p a r t o f a h a z a r d o u s a i r p o l l u t a n t compound l i s t e d in S e c tio n 112(b) o f th e fe d e ra l C lean A ir A ct. C i t a t i o n o f E x i s t i n g R ules A f f e c te d by t h i s O rd er: Amended R e g u la tio n I I I A. S t a t u t o r y A . u t h o r i t y f o r A d a p t i o n : C h a p t e r 7 0 . 9 4 RCW. A d o p te d u n d e r n o t i c e f i l e d a s WSR 9 9 - 1 6 - 0 9 0 on A u g u s t 4, 1999. Number o f S e c t i o n s A d o p t e d i n O r d e r t o Com ply w i t h F e d e r a l S t a t u t e : New 0 , Amended 0, R e p e a l e d 0; F e d e r a l R u l e s o r S t a n d a r d s : New 0, Amended 0, R e p e a l e d 0; o r E n a c t e d S t a t e S t a t u t e s : New 0, Amended 0, R e p e a l e d 0 . Number o f S e c t i o n s A .dopted a t R e q u e s t o f a N o n g o v e r n m e n t a l E n t i t y : New 0, Amended Repealed 0. Number o f S e c t i o n s A d o p t e d on t h e A g e n c y 's Own I n i t i a t i v e : New 0, Amended 0, Repealed 0. Number o f S e c tio n s A dopted in O rder to C l a r i f y , S tf e a m lin e , o r Reform Agency P r o c e d u r e s : Mew 0, Amended 0, R e p e a l e d 0. Number o f S e c t i o n s A d o p te d U s i n g N e g o t i a t e d R u le M ak in g : New 0, Amended 0, R e p e a l e d 0; P i l o t R u l e M a k in g : New 0, Amended 0, R e p e a l e d 0; o r O t h e r A l t e r n a t i v e R u l e M ak in g : New 0, Amended 0, R e p e a l e d 0 . E f f e c t i v e D a te o f R u l e : November 1, 1 9 9 9 . S eptem ber 21, 1999 J o h n K. A n d e rs o n S enior Engineer AMENDATORY SECTION REGULATION III APPENDIX A: ACCEPTABLE SOURCE IMPACT LEVELS COMPOUND NAME ANTU VAcetaldehyde CAS CODE 86-88-4 75-07-0 60-35-5 ASIL Ug/m3 1.0 0.45 TBD TYPE B A B http://www.Ieg.wa.gov/pub/wsr/1999/99-20/WSR%2099-20-005.htm 0 0 0 2 i 1/21/2001 /ASHINGTON STATE REGISTER Page 2 of 18 v'Acetamide Acetic acid Acetic anhydride Acetone VAcetonitrile ^/Acetophenone V2-Acetylaminofluorene Acetylene tetrabromide ^Acrolein -/Acrylamide -/Acrylic acid /Acrylonitrile Aldrin Allyl alcohol VAIIyI chloride Allyl glycidyl ether (AGE) Allyl propyl disulfide Aluminum, A! alkyls Aluminum, as A1 metal dusts Aluminum, as Al pyro powders Aluminum, as Al soluble salts Aluminum, as Al welding fumes 2-Aminoanthraquinone o-Aminoazotoluene /4-Aminobiphenyl 2-Aminopyridine Amitrole Ammonia Ammonium chloride fumes Ammonium perfluorooctanoate Ammonium sulfamate n-Amyl acetate sec-Amyl acetate /Aniline / Aniline and homologues Anisidine (o-,p- isomers) / o-Anisidine / Antimony & compounds, as Sb / Antimony trioxide, as Sb (antimony compound) /Arsenic and inorganic arsenic compounds / Arsine / Asbestos (Note: fibers/ml) Asphalt (petroleum) fumes 64-19-7 108-24-7 67-64-1 75-05-8 98-86-2 53-96-3 79-27-6 107-02-8 79-06-1 79-10-7 107-13-1 309-00-2 107-18-6 107-05-1 106-92-3 2179-59-1 7429-90-5 7429-90-5 7429-90-5 7429-90-5 7429-90-5 117-79-3 97-56-3 92-67-1 504-29-0 61-82-5 7664-41-7 12125-02-9 3825-26-1 7773-06-0 628-63-7 626-38-0 62-53-3 62-53-3 29191-52-4 90-04-0 7440-36-0 1309-64-4 7440-38-2 7784-42-1 1332-21-4 8052-42-4 83 67 5900 220 TBD TBD 47 0.02 0.00077 0.30 0.015 0.0002 17 1.0 77 40.0 6.7 33 17 6.7 17 TBD TBD TBD 6.3 0.06 100 33 0.33 33 1800 2200 6.3 1.0 1.7 1.7 1.7 1.7 0.00023 0.53 0.0000044 17 B B B B B A B B A B A A B B B B B B B B B A A A B C B B B B B B A B B C B B A B A B httpV/www.Ieg.wa.gov/pub/wsr/l999/99-20/WSR%2099-20-005.htm 000207 11/21/2001 -----/ Fage 1 o f 42 Home Exposure lim its Country E ffects TWAppm M Time TWAmg STELppm STELmg *** ABATE CAS : 3 3 8 3 - 9 6 - 8 - NETHERLANDS *** ACETALDEHYDE *** ACETIC ACID CAS: 6 4 - 1 9 - 7 RTECS: TF 6890000 - 10 100 130 RTECS: AF 1225000 10 25 * '* ACETIC ANHYDRIDE CAS: 1 0 3 - 2 4 - 7 RTECS: AK 1925000 5 20 C I *** ACETONE CAS: 6 7 - 6 4 - 1 RTECS: AL 3150000 750 1780 *** ACETONITRILE CAS: 7 5 - 0 5 - 8 RTECS: AL 7 7 0 0000 40 70 1 *** ACETYLENE CAS: 7 4 - 3 6 - 2 RTECS: AO 9600000 ASP *** o-ACETYLSALICYLIC ACID CAS: 5 0 - 7 3 - 2 RTECS: VO 0700000 -5 *** ACROLEIN CAS: 1 0 7 - 0 2 - 8 RTECS: AS 1050000 0.1 0.25 *** ACRYLAMIDE CAS: 7 9 - 0 6 - 1 H RTECS: AS 3325000 - 0.3 *** ACRYLIC ACID CAS: 7 9 - 1 0 - 7 RTECS: AS 4375000 10 30 * '* ACRYLONITRILE CAS: 1 0 7 - 1 3 - 1 RTECS: AT 5250000 49 10 22 http://www. inchem.org/documents/Uodb/explimit/hoUand.htm 000206 12/ 22/01 .tiouand (txpoiuic L.uiuu; fage 2 o 42 H ** ALDRIN CAS: 3 0 9 - 0 0 - 2 H RTECS: 10 2100000 0.25 *** ALLYL ALCOHOL CAS: 1 0 7 - 1 8 - 6 H RTECS: BA 5075000 25 *** ALLYL PROPYL DISULFIDE CAS: 2 1 7 9 - 5 9 - 1 RTECS: JO 0350000 2 12 *** l-ALLYL-2,3-EPOXYPROPYL ETHER CAS: 1 0 6 - 9 2 - 3 RTECS: RR 0875000 5 22 H '* * ALUMINUM ALKYL COMPOUNDS ( a s Al) CAS: 7 4 2 9 - 9 0 - 5 RTECS: BD 0330000 2 *** ALUMINUM OXIDE CAS: 2 9 9 - 8 6 - 5 RTECS: TB 3850000 10 5 *** 2-AMINOPYRIDINE CAS: 5 0 4 - 2 9 - 0 RTECS: US 1575000 0.5 2 *** AMITROLE CAS: 6 1 - 8 2 - 5 RTECS: XZ 3850000 0.2 ' ** AMMONIA CAS: 7 6 6 4 - 4 1 - 7 RTECS: BO 0875000 25 18 *** AMMONIUM CHLORIDE (fu m e s) CAS: 1 2 1 2 5 - 0 2 - 9 RTECS: BP 4550000 10 *** AMMONIUM PERFLUOROOCTANOATE CAS: 3 3 2 5 - 2 6 - 1 RTECS: RH 0782000 0.1 *' * AMMONIUM SULFAMATE CAS: 7 7 7 3 - 0 6 - 0 RTECS: WO 6125000 10 *** n-AMYL ACETATE *** AMYL ACETATE ( a l l i s o m e r s ) CAS: NOT AVAILABLE RTECS: AJ 2010 0 0 0 *** ANTU http://www.inchem.org/documents/ilodb/explimit/holland.htm 100 *530 *100 *530 00020$ 12/ 22/01 I l u i i i ^ a i i i i t; c i i v -M I^JUU I O XIC S L i s t 3 S O f N O V . 1 , 2 0 0 1 (from Rick Rumba rrumba@des.state.nh.us) CA S N um ber D escription f 75 - 7 - 0 Acetaldehyde (Ethanal) 60 - 35 - 5 A cetam id e 64 - 19 - 7 Acetic Acid 108 - 24 - 7 Acetic anhydride 67 - 64 - 1 Acetone (2-Propanone) 75 - 86 - 5 Acetone cyanohydrin 75 - 5 - 8 Acetonitrile (Methyl cyanide) 98 - 86 - 2 Acetophenone(incl:benzene from gasoline) 53 - 96 - 3 2- Acetylaminoflourene 79 - 27 - 6 Acetylene tetrabromide 50 - 78 - 2 Acetylsalicylic acid 107 - 2 - 8 Acrolein (2-Propenal) 79 - 6 - 1 A cry la m id e 79 - 10 - 7 Acrylic acid (2-Propeonic acid) 107 - 13 - 1 Acrylonitrile 124 - 4 - 9 Adipic acid 111 - 69 - 3 Adiponitrile 309 - 0 - 2 Aldrin 7429 - 90 - 5 Alkyls, as AI 107 - 18 - 6 Allyl alcohol 107 - 5 - 1 Allyl chloride 106 - 92 - 3 Allyl glycidyl ether 2179 - 59 - 1 Allyl propyl disulfide 7429 - 90 - 5 Aluminum (dust) 1344 - 28 - 1 Aluminum oxide 62 - 53 - 3 Am inobenzene; (Aniline; Phenyl Am ine). 92 - 67 - 1 4- Aminodiphenyl 141 - 43 - 5 2- Aminoethanol; (Ethanolam ine) 134 - 32 - 7 1- Aminonaphthalene; (1-Naphthylam ine) 91 - 59 - 8 2- Aminonaphthalene; (2-Naphthlam inine) 91 - 59 - 8 2 - Am inonaphthalene; (a-Naphthlam inine; 2-N a 504 - 29 - 0 2- Aminopyridine 61 - 82 - 5 A m itro le 7664 - 41 - 7 A m m o n ia 12/11/2001 OEL fm g/m 3) 45 24-hr AAL (ug/m 3) 161 25 21 1188 5 67 49 126 148 4243 18 239 246 14 5 0.23 0.03 5.9 4.3 5 8.8 0 .2 5 2 4.8 3 4.67 12 10 10 7.6 0 .0 0 6 9 7.5 70 25 0.821 0.107 21 15 104 44 0.893 10 17 11 23 500 50 149 27 0.025 27 0 .0 0 5 0.005 1.9 0.2 17 Page 1 of27 0.018 0.018 6.786 0.714 100 Annual AAL (ug/m 3) 9 84 70 2829 12 160 164 47 12 0.02 0.071 1 2 50 21 0.595 6.707 11 1 16 119 34 99 1 0.016 18 0.012 0.012 4.524 0.476 100 24-hr D em in (Ib/hr) A nnual Dem in (Ib/yr) 1.50E-02 29.500 ** 1 .1 8 E -0 2 1 .3 8 E -0 2 3.97E-01 1 .6 7 E -0 3 2 .2 4 E -0 2 2.31 E-02 275.00 231.00 9280.0 39.100 523.00 539.00 ** 6 .5 9 E -0 3 2 .3 4 E -0 3 7 .6 9 E -0 5 1 .0 0 E -0 5 1 .9 7 E -0 3 1 .4 4 E -0 3 9 .7 5 E -0 3 4 .1 2 E -0 3 8 .3 6 E -0 5 9 .4 2 E -0 4 1 .6 1 E -0 3 1 .0 0 E -0 3 2 .2 0 E -0 3 4 .6 8 E -0 2 4.71 E-03 1 .3 9 E -0 2 2 .5 4 E -0 3 2.31 E-06 2.51 E-03 154.00 39.100 6 .5 6 E -0 2 2.34E-01 3.280 6.560 163.00 68.700 1.950 22.000 37.500 3.280 51.400 391.00 110.00 325.00 3.280 5 .3 9 E -0 2 58.600 ** 1 .6 7 E -0 6 1 .6 7 E -0 6 6 .3 5 E -0 4 6 .6 9 E -0 5 9 .3 6 E -0 3 3.91 E-02 3.91 E-02 14.800 1.560 328.00 000210 (File) __ ____ ,__. i -tuu i uaiv-5 i_isi a s o r IMOV. 1, 2UU1 (from Rick Rumba rrumba@des.state.nh.us) OEL CA S N u m b er D escription (m g/m 3) 12125 - 2 - 9 Am m onium chloride fume 10 3825 - 26 - 1 7773 - 6 - 0 Am m onium perfluorooclanoale Am monium sulfamate 0.01 10 626 - 38 - 0 c- Amyl acetate 665 628 - 63 - 7 n- Am yl acetate; (Pentyl acetate) 532 62 - 53 - 3 Aniline (Phenyl amine; Am inobenzene) 7.6 90 - 4 - 0 o- Anisidine 0.5 104 - 94 - 9 p- Anisidine 0.5 7440 - 36 - 0 A n tim on y 0.5 1309 - 64 - 4 Antim ony trioxide 0.5 86 - 88 - 4 A N TU (1-Naphthalenylthiourea) 0.3 7440 - 38 - 2 Arsenic 0.01 7784 - 42 - 1 Arsine 0.16 8052 - 42 - 4 Asphalt (petroleum) fumes 5 1912 - 24 - 9 A tra zin e 5 86 - 50 - 0 A zin p h os -m eth yl 0.2 7440 - 39 - 3 Barium 0.5 1304 - 28 - 5 Barium O xide (as barium) 0.5 7727 - 43 - 7 Barium sulfate 10 17804 - 35 - 2 Benomyl 10 56 - 55 - 3 Benz[a]anthracene 0.1 71 - 43 - 2 Benzene 1.6 108 - 98 - 5 Benzenethiol; (Phenyl mercaptan; Thiophenol 2.3 92 - 87 - 5 Benzidine 0.008 50 - 32 - 8 Benzo[a]pyrene 0.1 205 - 99 - 2 Benzo[b]fluoranthene 0.1 98 - 7 - 7 Benzotrichloride 0.2 98 - 88 - 4 Benzoyl chloride 2.8 94 - 36 - 0 Benzoyl peroxide 5 140 - 11 - 4 Benzyl acetate 61 100 - 44 - 7 Benzyl chloride (a-chlorololuene) 5.2 7440 - 41 - 7 Beryllium and com pounds (as Be) 0.002 1304 - 56 - 9 Beryllium O xide (as beryllium) 0.002 24-tir AAL (ug/m 3) 417 0 05 149 9896 2676 27 2.515 2.515 1.786 1.786 1.071 0.036 0.571 25 18 0.714 2.515 2.515 417 36 0.357 5.714 8.214 0.001 0.005 0.357 0.003 14 25 307 19 0.02 0 02 Annual AAL (ug/rtl3) 99 0.024 99 6597 1784 1 1.677 1.677 1.19 0.2 0.714 0.024 0.05 17 12 0.476 1.677 1.677 99 24 0.238 3.81 5.476 0.001 0.005 0.238 0 .0 0 3 9.39 17 205 12 0.02 0.02 24-hr Dem id (Ib/ftr) A nnual Dem in (Ib/yr) 3 .9 0 E -0 2 325.00 4 .6 8 E -0 6 7.81 E -02 1 .3 9 E -0 2 325.00 9 .2 7 E -0 1 21600 2.51 E-01 5850.0 2 .5 4 E -0 3 3.280 2 .3 5 E -0 4 5.500 2 .3 5 E -0 4 5.500 1 .6 7 E -0 4 3.910 1 .6 7 E -0 4 6 .5 6 E -0 1 1 .0 0 E -0 4 2.340 3 .3 4 E -0 6 7.81 E-02 5 .3 5 E -0 5 1.64E-01 2 .3 5 E -0 3 55.000 1 .6 7 E - 3 39.100 6 .6 9 E -0 5 1.560 2 .3 5 E -0 4 5.500 2 .3 5 E -0 4 5.500 3 .9 0 E -0 2 325.00 3 .3 4 E -0 3 78.100 3 .3 4 E -0 5 7.81 E-01 5 .3 5 E -0 4 12.500 7 .6 9 E -0 4 18.000 1 .8 7 E -0 8 6 .5 6 E -0 4 4 .4 8 E -0 7 1 .5 7 E -0 2 3 .3 4 E -0 5 7.81 E-01 2 .5 2 E -0 7 8 .8 3 E -0 3 1 .3 2 E -0 3 30.800 2 .3 5 E -0 3 55.000 2 .8 7 E -0 2 671.00 1 .7 4 E -0 3 40.600 1 .8 7 E -0 6 6 .5 6 E -0 2 1 .8 7 E -0 6 6 .5 6 E -0 2 12/11/2001 Page 2 of27 000211 (File] Draft NR 445 Chemical l i s i W / i V K r w i _ - allutant Nam e etaldehyde :etic acid :etic anhydride :etone Cyanohydrin, as CN etonrtrile :etophenone :rolein rry la m id e rrylic acid rry lo n ilrile dipic Acid 'iponitrile rtamycin flatoxins Idrin llyt alcohol tlyt chloride llyl glycidyl ether lum inum alkyls and soluble salts, as A l lum inum pyro powders, as Al Aminoazotoluene (o-Aminoazotoluene) Aminoazotoluene (2-Aminoazotoluene) -A m in o b ip h e n y l mitrole m m onta m raonium perfluorooctanoate niline - Anisidine and o-anisidine hydrochloride (mixtures and omers) ntimony and compounds, as Sb ntim ony hydride (Stibine) ntim ony trioxide NTU rsenic and inorganic compounds, as As rsine sbostos trazine zacilidine, 5- zinph os-m ethyl \ziridine (Ethylenimine) ;arium soluble compounds, as Ba aygon (Propoxur) .enomyl onz(a)anthracene enzene onzidine ;enzo(b)Duo>anthene ;enzo(j)lkioranthene lenzo(k)fluorantheno lenzo(a)pyrene lenzotrichloride lenzoyl chloride Final-taxis CAS# 1 75-07-0 1 64-19-7 1 108-24-7 1 75-86-5 1 75-05-8 1 98-86-2 1 107-02-8 1 79-06-1 1 79-10-7 1 107-13-1 124-04-9 1 111-69-3 1 23214-92-8 1402-68-2 309-00-2 107-18-6 1 107-05-1 1 106-92-3 1 7429-90-5 1 7429-90-5 1 97-56-3 97-56-3 92-67-1 61-82-5 7664-41-7 1 3825-26-1 1 62-53-3 1 1 Hr 33 <2Srt 2 A B 5 W (Ibfttr) 1 Hr 25 1 Hr 40 1 Hr .< 4 0 ft -<7Srt {tWhr} (Ib/hf) (lb/hr} 24 Hr *:25tt (lb/hr) 25O ft (lb/hrj 3B W 3.36 10 7 1.22 3 89 W w 3B 5 3B w 0.0171 0.0545 3B 3A 2 w 3B 3B 3A 2 3B 5 w 20 6 7 48 0.105 553 1 32 5.12 1.12 4.36 20 1 3.61 14 0 2 64 10.3 0.261 0.00161 0.00626 0 317 1.23 0269 0.475 1.04 1.85 0.0134 0.0638 0 168 0.251 0.107 0.269 0.0522 0.248 0 653 0.974 0.417 1.04 0.0107 0.0417 0.935 3.63 000054 0.00209 0.409 1.59 29191-52-4 1 7440-36-0 1 7803-52-3 1309-64-4 86-88-4 7440-38-2 7784-42-1 1 1332-21-4 1912-24-9 320-67-2 446-86-6 86-50-0 151-56-4 1 7440-39-3 1 114-26-1 17604-35-2 56-55-3 71-43-2 92-87-5 205-99-2 205-82-3 207-08-9 50-32-8 98-07-7 98-88-4 1 3B 2 5 2 3A 5 3A 2 3B 3A 2 2 2 3B 3A 3A 3B 3B 3B 3B 3B 0.0271 0.0269 0.0274 0.105 0.104 0.107 00161 0.0626 0.00856 0.0333 0.269 1.04 00107 0.0473 0.0269 0.0269 0.537 0.0417 0 184 0.104 0.104 2 09 0.215 0 6 8 4 1.31 3 53 i Part 5 Chemical and Biological Substances PREAMBLE An exposure limit in this table is a maximum allowed airborne concentration and is not intended to represent a fine line between safe and harmful conditions. In determining an exposure limit, it is not possible to take into account all factors which could influence the effect that exposure to the substance mav have on an individual worker. Therefore, for all hazardous substances, regardless of anv assigned exposure limit, the guiding principle is elimination of exposure or reduction to the lowest level that is reasonably achievable below the exposure limit. Because of wide variation in individual susceptibility, some workers mav experience discomfort from some substances at concentrations at or below the exposure limit. Others mav be affected more seriously bv aggravation of a pre-existing condition, or bv development of an occupational illness. Furthermore, other workplace contaminants mav affect an individual's response. The effects of combined chemical exposures are often unknown or poorly defined. Simple asphyxiants which are not known to cause adverse health effect, other than through reducing oxygen levels in the air, do not have exposure limits and are not included in Table 5-4. As noted in section 5.56, simple asphyxiants must not be allowed to create oxygen deficient conditions. EXPLANATION OF HEADINGS AND DESIGNATIONS Chemical names The chemical names used in the first column of the table are based primarily on the generic chemical names of the substance. Cross references, shown in italics, are provided for some chemicals if more than one name is in common use. The letters fRTI in brackets indicates a registered trademark. Substances are listed alphabetically bv chemical name. Numerals and prefixes, for example, 1,2.3. tert. o-. sec-, cis. are disregarded in determining alphabetical order. Footnotes referenced in this column provide additional substance specific information located at the end of the table. CAS number Column 2 provides, if available, the Chemical Abstracts Service fCASl registry number. If a substance has more than one CAS number associated with it. for example, inorganic lead and compounds, the CAS number associated with the parent compound is used. Units Column 3 identifies the units in which exposure limits are reported. Aerosols fdust. fumes, mists) and mixtures are typically reported in milligrams per cubic metre fmg/m3). Pure vapours and gases are reported in parts per million fpprrO. Substances where the predominant exposure is to a fibre are reported in fibres per millilitre ff/mH. The exposure limit CEL) for gases and vapours can be converted between ppm and mo/m3 as follows: _________________________________ (EL in ppm) (g ra m m o l e c u l a r w e i g h t o f s u b s t a n c e ) EL in ma/m1 = 000213 Exposure limits 24.45 Columns 4 through 6 indicate, respectively, the 8-hour exposure limit. 15-minute exposure limit and ceiling limit. Designations The last column provides information on whether skin absorption is a significant route of exposure, and toxicological designations associated with each substance. In some cases, substances are provided with a designation only, and do not have numerical exposure limits. Specific requirements regarding the handling and use of such substances must be followed. Designations are as follows: Skin: The skin designation indicates that skin absorption can contribute to the overall exposure. Carcinogens: K1 -- a confirmed human carcinogen: K2 -- a suspected human carcinogen: K3 -- a possible human carcinogen. Reproductive toxins: R1 -- a proven reproductive toxin: R2 -- a possible reproductive toxin. Sensitizers: These substances, identified bv the letter Z. have been shown to produce an allergenic type of response in some workers after an initial exposure, resulting in the development of symptoms upon subsequent exposure at much lower concentrations. ALARA substances: These are substances to which exposure of workers must be kept as low as reasonably achievable. They are designated in Table 5-4 with the letter A. _______________________________________________________________________________ 8________ 15 Ceiling _________________________________________________________C A S ___________________ h o u r minute EL Chemical Name_________________________________________ Number______Unit EL_______ EL______ ________ D e s i g n a t i o n ABATE, RE SP IR AB LE DUST ............. ABATE, TOTAL DUST ................... AC ET A L D E H Y D E ......................... 25 K3 AC ET AM ID E ............................ K3 ACETIC A C I D .......................... ACETIC A N H Y D R I D E .................... 5 AC ET ON E ............................... AC ET ON E C Y A N OH YD RI N ............................... 75-86-S a a /m 1 m a/m 3 Dom 3 10 DDItl DDm DDItl P P Itt 10 250 20 15 500 0DA214 1________ SKIN AC ET ON IT RI LE .. 75-05-8 DM 20 AC E T O P H E N O N E .. 98-86-2 Dorn 10 AC ET YL EN E DICHLORIDE, see 1,2-DICHLOROETHYLENE AC ET YL EN E TETRAB RO MI DE --A C E T YL SA LI CY LI C A C I D ...... 79-27-6 50-78-2 DDTCl 1 ma/m3 5 R2 A C R O L E I N ...... 107-02-8 ppm 0.1 SKIN AC RY LA MI DE .... 79-06-1 ma/m3 0.03 SKIN, K2 ACRYLIC ACID .. 79-10-7 PPm 2 SKIN ACRYLONITRILE . 107-13-1 ppm 2 SKIN, K2 AD IP IC A C I D ... 124-04-9 mcr/m3 5 A D I P ON IT RI LE .. 111-69-3 ppm 2 SKIN A L D R I N ........ 309-00-2 ma/m3 0.25 SKIN ALLYL ALCOHOL . 107-18-6 ppm 2 SKIN A L L Y L AM IN E ... 107-11-9 ppm 2 SKIN ALLYL CHLORIDE 107-05-1 ppm 1 SKIN A L L Y L GL YCIDYL ET HE R ...... 106-92-3 ppm 5 SKIN, Z, A A L L Y L PROPYL DISULFIDE --- 2179-59-1 ppm 2 A L U M I N U M HYDROXIDE, RESPIRABLE DUST ............ 21645-51-2 ma /m3 3 A L U M I N U M HYDROXIDE, TOTAL DUST .................. 21645-51-2 m a / m 3 10 A L U M I N U M OXIDE, RESPIRABLE DUST, AS A1,0, ..... 1344-28-1 m a / m 3 3 A L U M I N U M OXIDE, TOTAL DUST, AS AJUO, .......... 1344-28-1 m a / m 3 10 ALUMINUM, AL KY L C O M P O U N D S , AS Al ............... 7429-90-5 ma /m3 2 ALUMINUM, PYRO POWDERS, AS A1 ................... 7429-90-5 ma /m3 5 ALUMINUM, RESPIRABLE DUST, AS Al ............... 7429-90-5 ma /m3 3 ALUMINUM, SOLUBLE COMPOUNDS , AS Al ............. 7429-90-5 m a / m 3 2 ALUMINUM, TOTAL DUST, AS A1 7429-90-5 m q / m 3. 10 ALUNDUM, see ALUMINUM OXIDE 4-AMINO DI PH EN YL (see note 1) .................... 92-67-1 ________ SKIN, Kl, A 2-AMINOETHANOL, see ETHANOLAMINE 2-AMINOP YR ID IN E ................................ ... 504-29-0 ppm 0.5 AM IT R O L E ........................................ ... 61-82-5 m a / m 3 0.2 K3 A M M O N I A ......................................... ... 7664-41-7 pp m 25 A M M O N I U M CHLORIDE, FUME ...................... ... 12125-02-9 m a / m 3 A M M O N I U M PERFLUOROOCTANOATE .................. ... 3825-26-1 m a /m3 SKIN A M M O N I U M SULFAMATE, RESPIRABLE DUST ........ ma/m3 A M M O N I U M SULFAMATE, TOTAL DUST .............. ma/m3 n- AMYL AC ET AT E ................................. ppm s e c - A M Y L AC ET AT E ............................... ppm AN IL IN E A N D HOMOLOGUES ........................ ... 62-53-3 PDItl SKIN ANISIDINE, o A N D D- ISOMERS .................. ma/m3 SKIN, K3 A N T I M O N Y AND COMPOUNDS, AS Sb ............... ma/m3 A N T I M O N Y TRIOXIDE, AS Sb ..................... ma/m3 K2 A N T U ............................................. ma/m3 ARSENIC, ELEMENTAL, AND INORGANIC COMPOUNDS, AS As 7440-38-2 ma/m3 Kl, A A R SI NE .......................... 10 0.01 3 10 100 125 2 0.5 0.5 0.5 0.3 0.01 0.05 60 1.5 0.3 0.75 4 2 10 2 20 2 35 20 20 150 150 0.9 0*0215 March 2001 000216 Table of Contents Introduction........................................................................................1 General requirements........................................................................ 2 WHMIS duties.................................................................................. 3 Hazardous products exempt from W HM IS..................................... 5 Employer duties for specific chemical and biological substances.. 5 Chemical and biological substances with assigned workplace contamination limits.................................. 5 Notifiable and designated substances.........................................7 Employer duties for certain workers................................................ 7 Safe storage of flammable, unstable, highly reactive and corrosive substances........................................................ 8 Emergency preparedness and response............................................8 Infectious substances........................................................................ 8 Accidents involving hazardous substances...................................... 9 Appendix: Workplace contamination limits............................... 10 Resources......................................................................................... 34 March 2001 000217 Occupational Health and Safety Division Chemical Substances Regulations 000219 Occupational Health and Safety Division Introduction Part XXI o f The Occupational Health and Safety Regulations, 1996 places duties on the employer to protect workers from the hazards o f chemical and biological substances. Part XXH deals with the employer's duty regarding substances regulated by the Workplace Hazardous Materials Information System (WHMIS). Section 85, Part VI o f the regulations lists additional requirements to protect workers from biological substances that are known or suspected o f causing infection in humans. The employer must address all these requirements, where they apply. Chemicals have obvious uses and applications in chemical laboratories, in chemical production and in other chemical processes. They are also ingredients o f trade name products such as paints, adhesives, photographic developers, and cleaners that are used in the workplace. Workers in food processing, sewage work, laboratories, agriculture, etc., handle biological substances or products containing biological substances o f animal, plant or microbial origin. Sometimes workers do not use, produce or handle chemical and biological substances directly, but are exposed to them when the substances are released into the workplace (for example, from processes such as welding, running equipment, oil-drilling and servicing, sawing or grinding). Health care workers, emergency workers, animal handlers, sewage workers and others may also be exposed to infectious biological substances when they deal with infected persons, animals or infectious materials at work. Hazardous substances may be released from structural materials such as insulation, new carpeting and furniture. Bacteria and fungi may grow on moist furnishings and structural materials in the workplace and even in water in ventilation systems. These microorganisms, and in some cases their spores, toxins and other products, can be released into the workplace air. Workers may also be exposed to chemicals being stored or chemicals that have spilled, leaked or accumulated. Chemical and biological substances may pose one or more o f the following hazards: > Fire - Flammable or combustible chemicals can bum under certain circumstances. Oxidizing chemicals can promote burning. Chemical and Biological Substances Guide 1 000219 > Explosions - Compressed gases and liquids, reactive substances, etc. can explode under certain circumstances. > Toxic reactions - Certain chemical and biological substances (e.g., bacterial toxins, mycotoxins) can be fatal or cause illness or injury if they are inhaled or enter the body by other means. The effects may occur within a short time o f the exposure (acute effect) or after repeated exposures over a relatively long period, such as weeks, months or years (chronic effect). An effect may clear up within a short time, be permanent or persist for a long time (long term effect). > Burns - Certain substances can cause severe eye, skin and airway irritation or damage. > Sensitization- Certain chemical and biological substances (e.g., spores and bacterial enzymes) can cause skin or respiratory allergies or other sensitivity reactions. > Infection - Some bacteria, viruses, fungi and parasites can be transmitted to workers and cause infectious diseases. > Dangerous reactions - Reactive chemicals are unstable under certain conditions or can react with other chemicals to produce fires, explosions or toxic products. General requirements The general duties of the employer for controlling the risks associated with chemical and biological substances are listed in section 302 o f The Occupational Health and Safety Regulations, 1996. The following is a guide to how employers address these duties. > Find out what chemical and biological substances in the workplace have hazardous properties and examine their use and presence. Determine which o f these substances may harm workers considering the properties o f the chemicals and how workers are exposed to them. > List all chemical and biological substances that may be hazardous to workers. This includes hazardous substances used, handled, stored, produced or disposed o f during work processes and other substances workers are concerned about. Keep the list up to date. Consult with the occupational health committee, the worker health and safety representative (representative), or the workers (where there is no occupational health committee or representative) in preparing and updating the list. Identify substances on the list that are subject to WHMIS requirements. 2 000220 Occupational Health and Safety Division > Assess the risk from exposure to these chemical and biological substances. Sources o f information include Material Safety Data Sheets (MSDSs) and other supplier information, industry experience, including any results o f monitoring done in similar situations, workers' concerns, regulatory requirements and safety organizations' information. > If, based on the risk assessment, you suspect that the extent o f exposure may cause harm to workers, consider and take all practicable (possible) steps to prevent workers from being exposed to that extent > Check whether any o f the more hazardous substances that are in use can be eliminated or if there are less hazardous substitutes. Use suppliers' information and industry experience. As far as is reasorably practicable, substitute with the less hazardous substances. > Examine the extent o f contamination o f the workplace with hazardous substances (including the work environment, work surfaces and workers' bodies). Investigate and implement reasonably practcable measures to reduce contamination. > Develop and implement safe work procedures and processes for handling, using, transporting, storing, producing and disposing o f chemical and biological substances. Integrate safety into all procedures and work processes and develop any necessary additional safe work procedures and processes. > Inform workers o f how individual chemical and biological substances can cause harm and the type and degree o f harm that can result. Develop training in consultation with the occupational health committee or the representative. Training must include the risks associated with the substances, how to reduce exposure and protect workers, and what to do when there are mishaps with the substances. WHMIS duties Employers' duties under the Workplace Hazardous Materials Information System (WHMIS) are described in Part XXII o f The Occupational Health and Safety Regulations, 1996. Products controlled under WHMIS (controlled products) cannot be used, but may be kept in storage at the workplace until these duties have been met (such as providing correct labels and product identifiers, Material Safety Data Sheets (MSDSs) and worker training). Chemical and Biological Substances Guide 3 000221 Substances that meet the hazard criteria described in the federal Controlled Products Regidations (Canada) are "controlled products" and subject to WHMIS requirements. The Occupational Health and Safety Division publication WHMIS Controlled Products will assist employers and workers in recognizing controlled products. (See the Saskatchewan Labour website at www.labour.gov.sk.ca or contact the Division at 1-800-567-7233 for this, and other resources.) Products that readily bum or explode, or produce toxic reactions, allergies, infectious diseases or dangerous reactions are likely to be controlled products. Check the labels and MSDSs for hazard warnings. The employer must develop and implement a system to obtain and update the required hazard information (MSDSs and labels) and use it to establish safe work procedures and worker training. Particular workers, positions or departments should be assigned responsibilities in the system. A competent person(s) must keep track o f the flow of information and its use. A centralized ordering or receiving process will help ensure that the appropriate information is received. The occupational health committee or the representative should be consulted in setting up and auditing the system. The system ensures that: > An acceptable, current (less than three years old) MSDS is obtained at the time o f purchase for each controlled product. The content o f an acceptable MSDS is provided in sections 325 to 329 o f the regulations. > Out-of-date MSDSs must be substituted with current supplier MSDSs. When a supplier MSDS is unobtainable and the product is still in use, the employer must ipdate the information on the MSDS. > Relevant MSDSs are readily available to workers who need them. The availability requirement is provided in section 327 o f the regulations. > A correct WHMIS label (whether a supplier label or a workplace label) is attached to each container o f a controlled product in the workplace(s). Labeling requirements are provided in sections 319 to 324 o f the regulations. > A training program is developed and delivered on the WHMIS system as well as on the hazards o f controlled products, safe handling and emergency procedures where there are fugitive emissions present. The content o f the training program and its objective are given in section 318 of the regulations and explained in the Division publication WHMIS Worker Training Requirements. 4 000222 Occupational Health and Safety Division Hazardous products exempt from WHMIS (section 304 of The Occupational Health and Safety Regulations, 1996) Some hazardous products used in the workplace, such as consumer products, explosives, pesticides, drugs, cosmetics and radioactive substances, are exempt from requirements for WHMIS supplier labels and MSDSs. Hazardous waste is exempt from the MSDS requirements. Employers are still required to collect and record the hazards o f the above products and determine how to safely handle them. Cortainers o f these products must be clearly labeled. Workers must be informed o f the hazards and trained on the safe use o f these products. Employer duties for specific chemical and biological substances Chemical and biological substances with assigned workplace contamination limits (section 307 of The Occupational Health and Safety Regulations, 1996) Workplace Contamination Limits (CLs) have been established for many workplace chemicals and some biological substances. Both 15 minute CLs and eight hour CLs are listed in Table 21 o f the regulations. The employer's duty is to ensure that workers are not exposed to average airborne concentrations o f these substances that exceed the CLs. The employer must take all reasonably practicable steps to ensure that these limits are not exceeded in any area where a worker is usually present. Airborne concentrations can be lowered by engineering controls that may include ventilation or using enclosures to prevent or minimize the release o f the substance into the work environment. In certain cases, it may not be reasonably practicable to use engineering controls. For example, the employer would not be expected to install a mechanical exhaust system to keep worker exposure below a CL if a substance is only used once a year in an annual maintenance procedure. In such cases the employer must provide alternative controls, such as appropriate personal protective equipment. (This is described in Part VTI o f the regulations). Chemical and Biological Substances Guide 5 000223 The employer must address contamination o f the work environment and determine the need, conditions and process for workplace monitoring. Monitoring (air sampling, personal assessment o f exposure and so forth) measures contaminants in the workplace. Monitoring can help assess the risks faced and the adequacy o f hazard controls. Monitoring must be used when: 1. the work environment may not be safe because of: > lack o f information about how badly the workplace is contaminated; > fluctuations in concentrations o f contaminants; > variations in how often workers are exposed to contaminants; or, 2. workers have complained about their health, or may have become ill because o f exposure(s) to workplace contaminants, and existing monitoring test results are suspect or unsatisfactory. Monitoring is not required where there is no standard method o f obtaining reliable results, or the results obtained with a standard method do not provide meaningful measures of risk. The eight hour CL may not be appropriate to protect workers who work extended shifts (more than eight hours a day) or work weeks (more than 40 hours) because o f the larger cumulative dose received over a shorter time span. In these cases, the exposure should be limited to a proportion o f the eight hour CL (such as %!\i o f the CL for a 12-hour shift) unless there is adequate evidence that the lower limit is not justified. Similarly, CLs are based on exposure to one chemical. In some cases a worker may be exposed to a combination or mixture o f substances, each o f which has a similar toxic effect when acting on the same body organ system (additive effect). A worker exposed to such a mixture can be exposed to each substance at a concentration below its respective CL, but can still be exposed to a hazardous concentration o f the mixture. In these cases, the exposure limit (concentration) for each substance must be limited to a fraction of its respective CL. In situations o f an extended shift or possible additive effect, the employer is required to develop and implement, in consultation with the committee, an appropriate written work procedure that limits the risk to the workers. The procedure must identify: > substances workers may be exposed to > conditions under which workers will be required or permitted to work, including the frequency and duration o f exposure to the substances > steps the employer will take to ensure no worker's personal exposure exceeds the equivalent o f the CL 6 000224 Occupational Health and Safety Division Notifiable and designated substances (sections 305, 306, 311 of The Occupational Health and Safety Regulations, 1996) A number o f chemical and biological substances are listed in Table 19 o f the regulations as Notifiable Substances because o f the serious nature o f the hazards associated with them. Most o f these are synthetic chemicals known to cause cancer in humans. The employer must notify the Director o f the Occupational Health and Safety Division and obtain written permission and a statement o f the conditions o f use before the substance is handled, used, produced, distributed or disposed o f at the place o f employment. Chemicals that have been identified as possible or probable causes o f cancer in humans have been identified in Table 20 of the regulations as Designated Substances. Where workers are required to handle, use, store, produce or dispose of any o f these chemicals, the employer must provide engineering controls, such as local ventilation or enclosures, to prevent the chemical and biological substances from being released into the workplace. The employer must also implement other measures, such as administrative measures and use o f personal protective equipment, to prevent workers from being exposed to the substance to an extent that poses any significantly greater risk o f disease than persons not so exposed. Employer duties for certain workers (section 308 of The Occupational Health and Safety Regulations, 1996) Pregnant workers and workers who are hypersensitive or unusually responsive to a substance may require additional protection. If there is a substance present in a form and to an extent that may harm these workers, and the worker notifies the employer o f their condition or their response to the substance, the employer must take steps to minimize the exposure. The worker may ask to be assigned to less hazardous, alternate work. If the worker's exposure cannot be minimized in their current position with reasonable measures, the employer must assign the worker to less hazardous, alternate work, if available. In some cases, after taking the above steps, the employer may still not be able to completely protect the worker. In such cases, the employer is not usually expected to take further action. Chemical and Biological Substances Guide 7 000225 Safe storage of flammable, unstable, highly reactive and corrosive substances (section 314 of The Occupational Health and Safety Regulations, 1996) Where storage o f these substances may put workers at risk, the employer must ensure the substances are stored in contained and enclosed areas, isolated from work areas to the extent that minimizes the risk to workers. Storage areas must be adequately ventilated and identified as described in section314 o f the regulations. Where two or more chemical substances, when combined, produce a toxic, corrosive or explosive reaction, the employer shall ensure that the substances are effectively separated and stored to prevent the substances from combining. Emergency preparedness and response (section 310 of The Occupational Health and Safety Regulations, 1996) When reviewing substances in a workplace, the employer must consider possibilities for accidental spills, leaks and accumulations o f substances that could be hazardous. Employers must prepare in advance for such accidents. In consultation with the committee, the employer must develop written emergency procedures. Employers must train workers on the procedures and ensure that emergency supplies and equipment are available. If a worker could be asphyxiated or poisoned at work, the employer must make arrangements to rescue workers and treat such conditions, and make sure any antidotes, first aid and medical treatments are available. Employers must also determine the need to provide emergency eyewashes and showers. Infectious substances (section 85 of The Occupational Health and Safety Regulations, 1996) To protect workers who are likely to be exposed to infectious materials or organisms (listed in Table 14 o f the regulations), the regulations require the employer to develop and implement a written plan. The plan must be developed in consultation with the occupational health committee. The plan must: > identify workers who may be at risk o f exposure > describe risks associated with the exposure > describe infection control measures 8 00022S Occupational Health and Safety Division > set out the procedures to be followed in cases o f spills or leaks > set out the procedures to be followed in cases o f accidental exposures > set out the procedures to be followed where a worker believes that he or she has been exposed > set out the methods o f cleaning, disinfecting or disposing o f contaminated material > describe the training that will be provided to workers > require the investigation and documentation o f exposure incidents > require the investigation o f any associated infection or disease occurrence Where a worker has been exposed to blood or infectious body fluids, the employer is required to take follow-up actions. These actions include evaluating and assessing the extent ofthe exposure. For harmful exposures, follow-up actions include malting arrangements for confidential post-exposure counseling, medical evaluation or medical intervention by a qualified person in a manner that is acceptable to the Department o f Health. These follow-up actions are provided at the request o f the worker and must be conducted during the worker's normal working hours or the worker's post-exposure follow-up time must be credited as time at work. Accidents involving hazardous substances Accidents involving a hazardous chemical or biological substance that: > result in death, > may have resulted in death, or > result in hospitalization for more than 24 hours must be investigated (section 29 o f The Occupational Health and Safely Regulations, 1996). The co-chairpersons o f the occupational health committee do the investigation. If there is no occupational health committee, the representative and the employer investigate. Where there is neither a committee nor a representative, the employer investigates. A written report of the accident must be prepared that includes results o f the investigation and items listed in section 29(2) o f the regulations. The Occupational Health and Safety Division must be notified o f accidents caused by chemical or biological substances that result, or could have resulted, in worker death or hospitalization o f the worker for more than 72 hours. If a worker is exposed to a substance listed in Table 19 or 20 o f the regulations that spilled, leaked or accumulated, the employer, in consultation with the committee, must investigate the exposure and provide a written report on the investigation to the worker and the committee. Section 311 o f the regulations lists the content o f the investigation report Chemical and Biological Substances Guide 9 000227 Workplace contamination limits Appendix These tables were derived from Table 21 o f The Occupational Health and Safety Regulations, 1996. Concentrations can often be measured by instruments that determine the quantity o f a substance in a known volume o f air. In Table 21 o f the regulations, the concentrations are expressed as the weight o f a substance in milligrams per cubic metre (mg/iri) o f air. Concentrations o f many gases and vapours are measured and expressed as parts (volume) o f the substance in a million parts (volumes) o f air (ppm). This table lists both concentration units. Each o f the two means o f expressing concentrations can be converted to the other. This is often necessary when an instrument expresses a concentration in terms o f ppm and this value must be compared with a contamination limit (CL) in Table 21 which lists the limits in mg/m1 o f air. > To convert ppm to mg/m3, use: C (m g/ni) = C (ppm) X GMW (substancey24.45 > To convert mg/m3 to ppm, use: Where: C (ppm) = C (mg/m3) X 24.45/GMW (substance) > C (mg/m1) is the concentration expressed as the weight of the substance in a known volume o f air > C (ppm) is the concentration expressed as the number of parts (volume) o f a substance in a million parts (volumes) o f air > G M W (substance) is the gram molecular weight o f a substance which can be found in chemistry texts or handbooks or in a Periodic Table > mg/m3means milligrams per cubic metre > ppm means parts per million > 24.45 is the molar volume o f air in litres at normal temperature and pressure conditions (25C at normal atmospheric pressure [760 torr]) 10 00022a Occupational Health and Safety Division Workplace Contamination Limits CAS Number Substance 75-07-0 64-19-7 108-24-7 67-64-1 75-86-5 75-05-8 98-86-2 79-27-6 50-78-2 107-02-8 79-06-1 79-10-7 107-13-1 124-04-9 111-69-3 309-00-2 107-18-6 107-05-1 106-92-3 2179-59-1 -- -- -- -- -- 141-43-5 504-29-0 7664-41-7 Acetaldehyde Acetic acid Acetic anhydride Acetone Acetone cyanohydrin, (asCN) Acetonitrile Acetophenone Acetylene tetrabromide Acetylsalicylic acid Acrolein Acrylamide Acrylic acid Acrylonitrile-*-* Adipic acid Adiponitrile Aldrin Allyl alcohol Allyl chlonde Allyl glycidyl ether (AGE) Allyl propyl disulfide Aluminum metal and oxide, (as Al) Aluminum pyro powders, (as Al) Aluminum welding fumes, (as Al) Aluminum, soluble salts, (as Al) Aluminum, alkyls, (as Al) 2-Aminoethanol (Ethanolamine) 2-Aminopyridine Ammonia 8 hour average contamination limit mglm1** **C45 25 20 1780 **C5 67 49 14 5 0.23 0.03 5.9 4.3 5 8.8 0.25 4.8 3 23 12 10 5 5 2 2 7.5 1.9 17 8 hour average contamination limit ppm* **C25 10 5 750 **0.44 40 10 1 -- 0.1 -- 2 2 -- -- -- 2 1 5 2 -- -- -- -- -- 3 0.5 25 15 minute average contamination limit mg/m'* -- 37 30 2380 -- 101 74 21 10 0.7 0.09 12 8.6 10 17.6 0.75 9.5 6 47 18 20 10 10 4 4 15 4 24 * mgim1 - milligrams o f substance per cubic metm of air; ppm = parts pe r million ** C denotes ceiling lim it +* This entry differs slightly from the corresponding entry in the regulations There was a typographic error in the regulations that will be corrected in a future printing * see note a t end o f Table ++ not otherwise classified Chemical and Biological Substances Guide 15 minute average contamination limit ppm* -- 15 7 1000 -- 60 15 1.5 -- 0.3 -- 4 4.0 -- -- -- -t - 10 3 -- -- -- -- 6 1 35 11 000229 Workplace Contamination Limits CAS .Number Substance 12125-02-9 3825-26-1 7773-06-0 62S-63-7 626-38-0 62-53-3 .... 7440-36-0 S6-88-4 7440-38-2 7784-42-1 8052-424 1912-24-9 S6-50-0 7440-39-3 17804-35-2 106-51-4 98-88-4 94-36-0 140-11-4 100-44-7 7440-41-7 92-524 1304-82-1 1304-82-1 Ammonium chloride; fume Ammonium Perfluorooctanoate Ammonium sulfamate (Ammate) n-Amyl acetate sec-Amyl acetate Aniline and homologues Anisidine (o-, p-isomers) Antimony and compounds, (asSb) ANTU (ct-Naphthyl thiourea) Arsenic, elemental, and inorganic compounds except arsine, (as As) .Arsine Asphalt (petroleum) fumes Atrazine Azmphos-methyl Barium. soluble compounds, (as Ba) Benomyl p-Benzoquinone (Quinone) Benzoyl chloride Benzoyl peroxide Benzyl acetate Benzyl chloride Beryllium and compounds, (as Be) Biphenyl (diphenyl) Bismuth telluride Bismuth telluride, Se-doped 8 hour average contamination limit mg/m1* 10 0.1 10 532 665 7.6 0.5 0.5 0.3 0.01 0.16 5 5 0.2 0.5 10 0.4 **C2.8 5 61 5.2 0.002 1.3 10 5 8 hour average contamination limit ppm* -- --** ---- 100 125 2 0.1 -- 0.05 -- -- -- -- -- 0.1 **C0.5 -- 10 1 -- 0.2 -- -- 15 minute average contamination limit mg/m1* 20 0.3 20 665 831 15 1.5 1.5 0.9 0.03 0.48 10 10 0.6 1.5 20 1.2 -- 10 122 10.4 0.01 4 20 10 15 minute average contamination limit ppm* -- -- ---- 125 156 4 0.3 -- -- 0.15 -- -- -- -- -- 0.3 -- -- 20 2 -- 0.6 -- m glm 3 ^m illigram s o f substance pe r cubic metre o f air; ppm = parts pe r million C denotes ceiling lim it This entry differs slightly from the corresponding entry in the regulations. There was a typographic error in the regulations that will be corrected in a future printing see note a t end o f Table not otherwise classified 12 000230 Occupational Health and Safety Division CAS Number 1314-13-2 7440-67-7 Workplace Contamination Limits Substance Zinc oxide dust Zirconium and compounds, (as Zr) 8 hour average contamination limit mg/ra'* 10 5 8 hour average contamination limit ppm* -- ---- 15 minute average contamination limit mg/rn3* 20 10 15 minute average contamination limit ppm* -- -- + Note: For the application of this limit, respirable size is that fraction of dust passing in a size selector with the following characteristics: Aerodynamic Diameter (pm) (unit density sphere) 0 1 2 3 4 % Passing selector 100 97 91 74 50 5 30 6 17 79 85 10 1 ' m glm 3 = milligrams o f substance per cubic metre o f air: ppm - parts pe r million ' * C denotes ceiling lim it +* This entry differs slightly from the corresponding entry in the regulations There was a typographic error in the regulations that will be corrected in a future printing * see note a t end o f Table *+ not otherwise classified Chemical and Biological Substances Guide 33 000231 Resources Occupational Health and Safety Division publications related to chemical and biological substances To obtain any of the following publications, please visit the Saskatchewan Labour website, www.labour.gov.sk.ca, or call the Occupational Health and Safety Division toll free at 1-800-567-7233. A number o f videos may also be borrowed free o f charge in Saskatchewan. Please see the website or contact us for details. B ulletins Abrasive Blasting Applying Pesticides Inside Places of Employment: Responsibilities o f Applicators, Employers and Owners Cutting Metals With Gas Plasma Flammable hydrocarbon mixtures as freon substitutes in vehicle air-conditioning systems Mercury and Dental Workers PCBs in Light Ballasts Plumbers and PVC Pipe Glue Requirements for Handling Glasswool (fibreglass) Insulation Saskatchewan Arena Air Quality Program Spraying o f Isocyanate Paints and Primers Worker Burned ... Bulk Storage Facility Worker Drowns After Exposure to FfcS Worker Overcome By H2 S While Working With Brine Water Containing Mineral Acid W H M IS B ulletins Distributors' Duties Under WHMIS Getting a WHMIS Program Started Importing Controlled Products Selling Controlled Products to Farms WFCMIS: Controlled Products WHMIS: How it Affects You WHMIS: Role o f the Occupational Health Committee or Representative WHMIS and Consumer Products WHMIS and Lab Chemicals WHMIS Worker Training Requirements 34 000232 Occupational Health and Safety Division B ro ch u res/B o o klets Anhydrous Ammonia Hazard Information for Farmers Commercial Pesticide Operators (Guidelines for) Cytotoxic Drugs Emergency Showers and Eyewashes First Aid in Saskatchewan Workplaces Hantavirus Disease: A Guide for Protection o f Workers and the Public Lab Chemical Storage Latex and other glove use in health care (Guidelines for) Lead Poisoning in Radiator Repair Shops Medical Monitoring o f Vehicle Repair Shop Workers Exposed to Inorganic Lead Monitoring Exposure to Organophosphorus and/or Carbamate Insecticides Monitoring Silicosis (Guidelines for) Pesticide Container Recycling Pesticide Safety Handbook Pregnant Women and the Hazards o f Workplace Chemicals (technical backgrounder) Protecting Emergency Response Workers From Infectious Diseases Smoking Regulations Guide Chemical and Biological Substances Guide 35 000233 P R O PO SED REVISED A N D N EW O N TA R IO O C C U P A TIO N A L EXPO SU R E LIMITS (See definitions and symbols key at the end of the table) Q * IK W W l!i |io G ^ |W B M il W llil * i tttll|ifc n N tfd ita 'i^ p i^ disponible qu'en q a ^ B ^ a ! * n u ^ f ^ 3i s r e ( ^ t 1i 1,i< r ,e < j^ i r iir f9ni>l<aptttolfetedtfU6<siPriwt-nai(3 a ir p b u m t^ e ife i iH fe a n a is , veuillez SUBSTANCE Acetaldehyde [75-07-0] Acetone [67-64-1] TWAEV P ro p o s e d ppm mg/rrr Current ppm mg/m3 100 180 500 750 1780 STEV CEV P ro p o s e d Current P roposed p p m m g /m 3 ppm |mg/m3 p p m m g /m 3 Current ppm mg/m3 150 270 25 750 1000 2375 Acetone cyanohydrin [75-86-5], as CN* 4.7 Acetophenone [98-86-2]* 10 Acrolein [107-02-8] 0.1 0.23 0.3 0.7 0.1 Acrylic acid [79-10-7] 2 10 29 Adipic acid [124-04-9]* 5 Adiponitnle [111-69-3]* 2 AJIyi Alcohol [107-18-6] Ammonium perfluoro-octanoate [3825-26-1] 0.5 2 0.01 5 0.1 4 10 tert-Amyl methyl ether [99 4-0 5-8]t Asbestos fibres - O ther than am osite and crocidolite [1332-21-4] 250 0.1 f/cc 1045 1.0 f/cc 310 1295 Benzaldehyde [100-52-7]f 4 17 Benzene [71-43-2] 0.5 5 16 2.5 Benzotrichloride [98-07-7]* 0.1 Benzoyl chloride [98-88-4]* 0.5 Benzyl acetate [140-11-4]* 10 Beryllium and its com pounds (as beryllium) [7440-41-7] 0.002 0.002 0.01 Bis[2-(Dimethylaminoethyl)] ether [3033-62-3]f 3is(O im e th y lth io c a rb o n y l)d is u lfid e [137-26-8] 5 33 1 5 Bromacil [314-40-9] 10 1 11 Bromine [7726-95-6] 0.1 0.1 0.7 0.2 0.3 2 1,3-Butadiene [106-99-0] 2 10 22 2-Butoxyethanol [111-76-2] 20 25 120 2-Butoxyethyl acetate [1 12-07-02]f 20 n-Butyl acrylate [141-32-2] 2 10 52 p-tert-8utyltoluene [98-51-1] Cadmium and its com pounds (as cadmium) [7440-43-9] Cadmium, elemental, and compounds, as Cd, Respirable [7440-43-9]* 1 0.01 0.002 10 60 0.02 20 120 Calcium Chloride [10043-52-4JT 5 I 5.0 f/cc ! 15 148 ; I | I | 1 1 1 1 Calcium chromate [13765-19-0], as Cr* Carbon monoxide [630-08-0] 25 0.001 35 40 400 460 Charcoal, except activated (16291-96-6]t Chlorine [7782-50-5] 0.5 Chloroacetone [78-95-5]* Chloroacetyl chloride [79-04-9] 0.05 o-Chlorobenzaldehyde [89-98-5]t | 10 1 0.05 31 0.23 0.15 4 23 39 1 1 000234 P R O PO SED REVISED A N D N E W O N TA R IO O C C U P A TIO N A L EXPO SU R E LIM ITS (See definitions and symbols key at the end of the table) SUBSTANCE TW AEV P roposed ppm |m g /m J Current ppm m g/nr Trimethylamine [75-50-3] 5 10 24 Trixylyphosphate [25155-23-1]t 0.1 Vinyl acetate [108-05-4] 10 10 35 Vinyl bromide [593-60-2] 0.5 5 22 Vinyl chloride [75-01-4] 1 2 5.2 4-Vinyl cyclohexene [100-40-3]* 0.1 Vinyl fluoride [75-02-5]* 1 Vinyiidene fluoride [75-38-7]* 500 Wheat Flour Dust (total du st)t 3 W ood Dust, not otherwise classified (total d u s t)t 3 Zinc chromates, (13530-65-9; 11103-86-9:37300-23-5) as Cr* 0.01 STEV CEV P ro p o s e d ppm m g /rrr Current P roposed ppm mg/m3 p p m m g /m s Current ppm |mg/m3 15 15 36 15 20 70 10 26 Footnotes TWAEV (time-weighted average exposure value) is the average of the airborne concentrations o f a biological or chemical agent determ ined from air samples of the airborne concentrations to which a worker is exposed in an 8-hour work day or a 40-hour w ork week. STEV (short-term exposure value) is the maximum airborne concentration o f a biological or chemical agent to which a worker is exposed in any fifteen minute period determ ined from a single sam ple or a time-weighted average of sequential samples taken during such a period. CEV (ceiling exposure value) is the maximum airborne concentration o f a biological or chemical agent to which a worker is exposed at any time, ppm - The airborne concentrations o f the agent are expressed as parts o f the agent per million parts o f air by volume. mg/m3 - The airborne concentrations o f the agent are expressed as milligrams of the agent per cubic metre of air. f/cc - The airborne concentrations o f the agent are expressed as fibres of the agent per cubic centimetre. * New limits adopted from the 1999 American Conference o f Governm ental Industrial Hygienists (ACGIH) Threshold Limit V alues (TLVs) T New limits adopted from the Ontario W orking Exposure Guidelines (WEGs) OProvided that the total dust contains less than 0.7% vanadium. Provided that the respirable dust concentration does not exceed 2 mg/m3. tF o r assessing the visibility in a work environment where 1.2-propylene glycol aerosol is present. The value is for particulate m atter containing no asbestos and less than 1% crystalline silica. A secondary W EG -TW AEV of 5 mg/m3 (total dust) is recommended to deal with dusty operations where fibre counts are usually difficult to determine. Where both types of measurements are made simultaneously, the more restrictive WEG-TWAEV should be used to assess the exposures. 000235 7 Belgium (Exposure Limits) Page 1 o f 45 Exposure lim its: Country Effects TWAppm M Time TWAmg *** ABATE CAS: 3 3 8 3 - 9 6 - 8 - BELGIUM RTECS: TF 6890000 10 *** ACETALDEHYDE 100 180 *** ACETIC ACID CAS: 6 4 - 1 9 - 7 RTECS: AF 1 22500 0 10 25 *** ACETIC ANHYDRIDE CAS: 1 0 8 - 2 4 - 7 RTECS: AK 1 92500 0 *** ACETONE CAS: 6 7 - 6 4 - 1 RTECS: AL 315 0 00 0 750 1780 *** ACETONITRILE CAS: 7 5 - 0 5 - 8 SK RTECS: AL 7 70 0 0 0 0 40 67 *** 2 - ( ACETYLAMINO)FLUORENE CAS: 5 3 - 9 6 - 3 RTECS: AB 9 45000 0 Cl *** ACETYLENE CAS: 7 4 - 3 6 - 2 RTECS: AO 9 60000 0 ASP *** o-ACETYLSA L I CYLIC ACID CAS: 5 0 - 7 8 - 2 RTECS: VO 0 70000 0 5 *** ACROLEIN CAS: 1 0 7 - 0 2 - 8 RTECS: AS 1 05000 0 0.1 0.23 *** ACRYLAMIDE CAS: 7 9 - 0 6 - 1 C2, SK RTECS: AS 3 32 5 0 0 0 0.03 *** ACRYLIC ACID CAS: 7 9 - 1 0 - 7 RTECS: AS 43 75 0 00 10 29 STELppm STELmg 150 15 *5 1000 60 270 37 *21 2380 101 00 0.3 0.69 00023S http://www.inchem.org/documents/ibdb/explimit/belgium.htm 12/04/2001- Belgium (Exposure Limits) *** ACRYLONITRILE CAS: 1 0 7 - 1 3 - 1 C2, SK RTECS: AT 52 50 0 00 2 4.3 *** ALDRIN CAS: 3 0 9 - 0 0 - 2 SK RTECS: 10 2 10 0 0 0 0 0.25 *** ALLYL ALCOHOL CAS: 1 0 7 - 1 8 - 6 SK RTECS: BA 5 07500 0 2 4.8 *** ALLYL PROPYL DISULFIDE CAS: 2 1 7 9 - 5 9 - 1 RTECS: JO 0 35000 0 2 12 *** l-ALLYL-2,3-EPOXYPROPYL CAS: 1 0 6 - 9 2 - 3 RTECS: SK ETHER RR 08 75 0 00 5 23 *** ALUMINUM CAS: 7 4 2 9 - 9 0 - 5 RTECS: BD 0 3 3 0 00 0 10 *** ALUMINUM ( f u m e s ) ( a s A 1 ) 5 *** ALUMINUM ( p y r o p o w d e r s ) 5 *** ALUMINUM ALKYL COMPOUNDS (a s Al) RTECS: BD 03 30 0 00 2 *** ALUMINUM COMPOUNDS ( s o l u b l e ) ( a s Al ) 2 *** ALUMINUM OXIDE CAS: 1 3 4 4 - 2 8 - 1 CAS: 2 9 9 - 8 6 - 5 RTECS: RTECS: BD 1 20000 0 1 0 (id) TB 3 85000 0 5 *** 4-AMINODIPHENYL CAS: 9 2 - 6 7 - 1 RTECS: DU 892 5000 C l , SK *** 2-AMINOPYRIDINE CAS: 5 0 4 - 2 9 - 0 RTECS: US 1 57500 0 0.5 2 *** AMITROLE CAS: 6 1 - 8 2 - 5 *** AMMONIA CAS: 7 6 6 4 - 4 1 - 7 RTECS: XZ 3 85000 0 0.2* RTECS: BO 087 5 00 0 http://www.inchem.org/documents/ilodb/explimit/belgium.htm 4 3 10 0 Page 2 o f 45 9.5 18 47 20 0 000237 12/04/2001- 25 17 *** AMMONIUM CHLORIDE ( f u me s ) CAS: 1 2 1 2 5 - 0 2 - 9 RTECS: BP 4 55 0 0 0 0 10 *** AMMONIUM PERFLUOROOCTANOATE CAS: 3 8 2 5 - 2 6 - 1 RTECS: RH 078 2 00 0 0 .1 *** AMMONIUM SULFAMATE CAS: 7 7 7 3 - 0 6 - 0 RTECS: WO 61 25 0 00 10 *** n-AMYL ACETATE 100 532 *** ANILINE CAS: 6 2 - 5 3 - 3 SK RTECS: BW 66 50 0 00 2 7.6 *** o-ANISIDINE CAS: 9 0 - 0 4 - 0 SK RTECS: BZ 541 0 00 0 0.1 0.5 *** p-ANISIDINE CAS: 1 0 4 - 9 4 - 9 SK RTECS: BZ 5 45 0 0 0 0 0.1 0.5 *** ANTIMONY COMPOUNDS ( a s Sb) CAS: 7 4 4 0 - 3 6 - 0 RTECS: CC 4 02500 0 0.5 *** ANTIMONY HYDRIDE CAS: 7 8 0 3 - 5 2 - 3 RTECS: WJ 070 0 00 0 0.1 0.51 * * * ANTIMONY TRIOXIDE CAS : 1 3 0 S - 6 4 - 4 RTECS: CAS : 8 6 - 8 8 - 4 RTECS: CC 5 6 5 0 00 0 - YT 92 75 0 00 - 0.5 0.3 * +* ARGON CAS : 7 4 4 0 - 3 7 - 1 RTECS: CF 2 30 0 0 0 0 ASP *** ARSENIC CAS: 7 4 4 0 - 3 8 - 2 RTECS: CG 05 25 0 00 0.2 *** ARSENIC COMPOUNDS ( s o l u b l e ) ( a s As) CAS: 7 4 4 0 - 3 8 - 2 RTECS: CG 052 5 00 0 0.2* *** ARSENIC TRIOXIDE CAS: 1 3 2 7 - 5 3 - 3 RTECS: CG 33 25 0 00 35 - - " - http://www.inchem.org/documents/ilodb/explimitelgium.htm Page 3 of 45 24 20 - - - 000238 12/04/200 L tseigium (hxposure Limns; C2 *** ARSINE CAS: 7 7 8 4 - 4 2 - 1 RTECS: CG 64 75 0 00 0.05 0.16 *** ASPHALT ( f u m e s ) CAS: 8 0 5 2 - 4 2 - 4 RTECS: Cl 99 00 0 00 5 *** ATRAZINE CAS: 1 9 1 2 - 2 4 - 9 RTECS: XY 5 6 0 0 00 0 5 *** AZINPHOS METHYL CAS: 8 6 - 5 0 - 0 SK RTECS: TE 19 25 0 00 0.2 *** AZIRIDINE CAS: 1 5 1 - 5 6 - 4 RTECS: KX 50 75 0 00 SK *** BARIUM COMPOUNDS ( s o l u b l e ) ( a s Ba) CAS: 7 4 4 0 - 3 9 - 3 RTECS: CQ 8 37000 0 0.5 *** 3ARIUM SULFATE ( d u s t ) CAS: 7 7 2 7 - 4 3 - 7 RTECS: CR 06 00 0 00 -- 10 ( i d *** BENOMYL 0.84 10 *** BENZENE C2 10 32 *** BENZIDINE CAS: 9 2 - 8 7 - 5 RTECS: DC 9 62500 0 C l , SK *** BENZIDINE ( p r o d u c t i o n ) Cl *** BENZIDINE SALTS CAS: NOT AVAILABLE RTECS: - Cl *** BENZO(a)PYRENE CAS: 5 0 - 3 2 - 8 RTECS: DJ 3 67 5 0 0 0 C2 *** p-BENZOQUINONE CAS: 1 0 6 - 5 1 - 4 RTECS: DK 2 6 2 5 0 0 0 0.1 0.44 0 0 0 0 http ://www. inchem. org/documents/ilodb/explimit/belgium. htm Page 4 of 45 0 0 o o 000239 12/04/2001 Belgium (Exposure Limits) *** BENZOYL PEROXIDE CAS: 9 4 - 3 6 - 0 RTECS: DM 8 5 7 5 00 0 5 *** BERYLLIUM CAS: 7 4 4 0 - 4 1 - 7 C2 RTECS: DS 1 75000 0 0.002 *** 3ERYLLIUM COMPOUNDS ( a s Be) C2 0.002 *** BIPHENYL CAS: 9 2 - 5 2 - 4 RTECS: DU 80 50 0 00 0.2 1.3 *** BIS(2-CHLOROETHYL)ETHER CAS: 1 1 1 - 4 4 - 4 RTECS: KN 08 75 0 00 5 29 SK *** BIS(2-ETHYLHEXYL)PHTHALATE CAS: 1 1 7 - 8 1 - 7 RTECS: TI 0 35000 0 5 *** BIS(CHLOROMETHYL)ETHER CAS: 5 4 2 - 3 8 - 1 RTECS: KN 15 75 0 00 0.001 0.0047 CI *** BISMUTH TELLURIDE CAS: 1 3 0 4 - 8 2 - 1 RTECS: EB 3 11 0 0 0 0 10 *** BISMUTH TELLURIDE ( s e l e n i u m d o p e d ) 5 *** BORNAN-2-ONE CAS: 7 6 - 2 2 - 2 RTECS: EX 1 22500 0 2 12 *** BORON TRIBROMIDE CAS: 1 0 2 9 4 - 3 3 - 4 RTECS: ED 7 4 0 0 00 0 + 3 0 RON TRIFLUORIDE CAS : 7 6 3 7 - 0 7 - 2 RTECS: ED 2 2 7 5 0 0 0 _ + ++ BROMACIL (ISO) CAS:: 3 1 4 - 4 0 - 9 RTECS: YQ 91 00 0 00 1 11 BROMINE CAS :: 7 7 2 6 - 9 5 - 6 RTECS: EF 9100000 0 .1 0. 66 BROMINE PENTAFLUORIDE CAS : 7 7 8 9 - 3 0 - 2 RTECS: EF 9350000 0 . 1 0. 72 10 3 *1 *1 0.3 http ://www. inchem. org/documents/ik>db/explimit/belgium. htm Page 5 o f 45 58 10 19* *10 * 2.8 2 000*4 12/04/2001- u c ig iu u i ^J-Apuautc *** 2-BROMO-2-CHLORO-1,1 , 1-TRI-FLU0R0ETHANE CAS: 1 5 1 - 6 7 - 7 RTECS: KH 6 55 0 0 0 0 50 404 *** BROMOCHLOROMETHANE CAS: 7 4 - 9 7 - 5 RTECS: PA 5 2 5 0 00 0 200 1058 *** BRCMOETHANE CAS: 7 4 - 9 6 - 4 RTECS: KH 64 75 0 00 200 891 *** BROMOETHYLENE CAS: 5 9 3 - 6 0 - 2 C2 RTECS: KU 84 00 0 00 5 22 *** BROMOFORM CAS: 7 5 - 2 5 - 2 SK RTECS: PB 5 6 0 0 00 0 0.5 5.2 *** 3ROMQMETHANE CAS: 7 4 - 8 3 - 9 SK RTECS: PA 49 00 0 00 5 20 *** BROMOTRIFLUOROMETHANE CAS: 7 5 - 6 3 - 8 RTECS: PA 54 25 0 00 1000 6090 *** 1,3-BUTADIENE CAS: 1 0 6 - 9 9 - 0 C2 RTECS: El 92 75 0 00 10 22 *** BUTAN-l-OL CAS: 7 1 - 3 6 - 3 SK RTECS: EO 1 40000 0 - *** BUTAN-2-OL CAS: 7 8 - 9 2 - 2 RTECS: EO 1 75000 0 100 303 *** BUTAN-2-ONE CAS: 7 8 - 9 3 - 3 RTECS: EL 64 75 0 00 200 590 *** n-BUTANE CAS: 1 0 6 - 9 7 - 8 RTECS: EJ 4200000 800 1900 *** tert-BUTANOL CAS: 7 5 - 6 5 - 0 RTECS: EO 19 25 0 00 100 303 *** BUTANONE PEROXIDE CAS: 1 3 3 8 - 2 3 - 4 RTECS: EL 945 0 00 0 *** 1-BUT0XYETHAN0L http://www.inchem.org/documents/i]odb/explimit/belgium.htm 250 250 - . *50 150 300 . 150 *0.2 Fage 6 o f 45 - 1320 1110 - *152 455 885 455 *1.5 000241 12/04/2001. f <<;.yiene .-V "mone Uichloride (ce dd-LCdCorod''' -leiu,; 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CA3Nef*-'"ppirt - rwgtfiiu VT<ppm~y'mg/m' i " '/< ..' ?'::rr, - Soidbc m b CAch CAd m brvdm oiy-mihc; Aionn'.in.o - bd , ; ;:- Chni.-M, 2-4 'oniHAmn-n m e dUmmC ndm \ C-Cob ''-py-airr.- 'KVi-l'-"'-' m - ; -,,c ,, ,f . >/'< It -frum v.' A-mnoni i iU 01 aie \ u c <r n m m : pv. j ) t ' * r-ii.c Arr<oi'.k* Ashc-tos) n-4mv! aoels-e ?tc-4neyj acetate AnCb c C-brnm' s-m-.-, b ', ' : b n a f / , ' - W L A V Ac vOi... - hj.'O:.'.: -C.p !Cjr'.-j;-,, i. i > ; AH' sir, - - - - ir.i! Workplace Exposure Standards U C m u Arsine idoHh .Im bait Bm lun y m k ;i.:>*.,f!< n i ; p m nrvl ohb-m k i , ' - ''i;",.' : C m n d ju m a n d Effective from 2001 H'Sui nv> m o m P - ,i ,, , *i X u - S : s ; .i A ; ' :: : / : : * ; .> U : .V ! U i X U s i C S V .: .." : i :. . U y s V;'.. V. i A i i. : i - : ,, : :. t V , ' O H 'GV-i*sV'. : * .V ..' -:.H 0 Kidoner Ci y i ;'.Ci '; ; : - i .: :.VI C:-.COi O : { i f i i 6c>.."i-:U.iy; , 0 0 0 0 0 ; '.V i - i , ' \ ; y m . / ; ': 0 : ViC TH ; s1v.: (SC. 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' id '; ~ c C y c l o n l t e ( sei n) C y d o p s / d ^ ^ j n c d ; - ^ c - - y e n l a " c in 2. id ) 1)^ p h e nv if ?"'c hs*o r<^e 11:a n j F?tn;ahooi n rr<r! !: "; ' ` , r v '.)o; , ^ r r v - K t l y v i c n a d C i m m c ) D?ab)macefTisA;^|jnyii<'TDiicn*,'\{ni;r~ . >. r j ,.tA & '} ? S 5 i* & ib n < H M p c 8 ^ id b m $ iK N ^ ^ rt 2 - . , . . i o d ' C M l b a o i d ( s k b i ) L'i b u t v l p b e n y l p h i <s>;:,'.u ' {ski n. 1 Di-UI U i b u t v i p h o s p l u b U i l n d y ! p i r . h - 0 0 4 )2 4 2 C ontents Introduction 2001 W orkplace Exposure Standards Table Notes to W E S table Appendix 1 Short Term Excursions for Carbon Monoxide Exposure Page 1 Page 2 Page 24 Page 25 Introduction T h e following table contains an up-to-date list of the N e w Z ealan d W o rkp lace Exposure S tandards that replace the 1994 W E S figures. W h en the com plete docum ent is published later in 2001 it will include: Revised Biological Exposure Indices. C h an g es in the w ay W E S are to be interpreted including adjustm ent to accom m odate for unusual workshifts A revised list of w orkplace standards com piled by other organisations. 000243  A ce ta ld e h y d e (2 0 0 1 ) C A S N o(a), (75-07-0] WORKPLACE EXPOSURE STANDARDS TWA STEL ppm ( ' m g/m 3(cl ppm 10* m g /m 3(cl 20 - 50 - 1 Acetic acid Acetic anhydride Acetone Acetonitrile (skin) A c e ty le n e [64-19-7] [108-24-7] [67-64-1] [75-05-8] [74-86-2] 10 25 15 37 Ceiling 5ppm (21 m g/m 3) 500 1,185 40 67 1,000 60 2 ,3 7 5 101 Simple asphyxiant-may present an explosion hazard. Acetylene dichloride (see 1,2-Dichloroethylene) Acetylene tetrabromide Acetylsalicylic acid Acrolein A crylam ide (skin. a2 ) Acrylic acid iskm) [79-27-6] [50-78-2] [107-02-8] [79-06-1] [79-10-7] 1 14 -5 0.1 0.23 - 0.03 2 5.9 ------ Acrylonitrile (skin, A2 > Aldrin (skin) [107-13-1] [309-00-2] 2 4.3 - 0.25 --- Allyl alcohol (skin) Allyl chloride Allyl glycidyl ether (A G E ) (skin.sn) [107-18-6] [107-05-1] [106-92-3] 2 4.8 1 3.0 5 23 4 9.5 2 6.0 10 47 Allyl propyl disulfide [2179-59-1] 2 12 3 18 a-Alum ina (see Aluminium oxide) Aluminium, as AI Metal dust Pyro powders W elding fumes Soluble salts Alkyls (Not otherwise classified) Aluminium oxide [7429-90-5] [1344-28-1] 10 -5 -5 -2 -2 - 10(d| ----- -- 4-A m inodiphenyl (skin. At) [92-67-1] -- -- 2-Aminoethanol (see Ethanolamine) 2-A m in o p yrid in e [504-29-0] 0.5 2.0 -- 3-Am ino-1,2,4-triazole (see Amitrole) A m itro le A m m o n ia [61-82-5] [7664-41-7] - 0.2 25 17 -35 24 Ammonium chloride fum e [12125-02-9] - 10 - 20 Ammonium perfluorooctanoate [3825-26-1] - 0.1 -- Ammonium sulphamate [7773-06-0] - 10 -- Amosite (see Asbestos) n-Amyl acetate [628-63-7] 100 532 -- sec-Amyl acetate Aniline & hom ologues (skin. 2 0 0 1 1 [626-38-0] 125 665 - [62-53-3] 14 - Workplace Exposure Standards: Effectivefrom 2001 Page 2 000244 Notes to W E S table (a) C A S # ,C h e m ic al Abstracts Service Registry .A unique numbering identifier is assigned to each individual chemical. (b) Parts of vapour or gas per million of contam inated air by volum e at 2 5 C and 7 6 0 torr. (c) Milligram s of substance per cubic m etre of air. (d) T h e valu e is for inspirable dust containing no asbestos and less than 1% free silica. (e> Fibres longer than 5m m and with an aspect ratio equal to or g re ater than 3:1 as determined by the m em brane filter method.Asbestos levels can be changed by G a ze tte notice. (g) Lint-free dust as m easured by the vertical elutriator cotton-dust sam pler described in the Transactions o f the N atio n al C onference on Cotton D ust p.33,by J.R. Lynch (M ay 2,1970). (i> A range of airborne contam inants are associated with gas and arc w elding.The type of m etal being w elded.the electrode em ployed and the welding process will all influence the composition and amount of fum e.G aseous products such as oxides of nitrogen.carbon monoxide and ozone m ay also be produced.In the absence of toxic elem ents such as chromium.and where conditions do not support the generation of toxic g as es ,th e fum e concentration inside the w e ld e r 's helm et should not exceed 5 mg/m . 0 ) Sam pled by a method that does not collect vapour. (k) T herm al decomposition of polytetrafluoroethyiene (P T F E .teflo n )h a s been shown to cause polym er fum e fever.Although the decomposition products have been studied.no W o rk p la ce Exposure Standard is recom m ended at this stage. (0 Does not incude the sterates of the toxic metals. (m) Biological monitoring recom m ended. (A-i) C onfirm ed hum an carcinogen. (A2 ) Suspected hum an carcinogen. (2 coi) 2001 change. (skin) Skin absorption. (sen) Sensitiser. (bio) Exposure can also be estim ated by biological monitoring. Workplace Exposure Standards: Effectivefrom 2001 P a g e 24 000245 A p p e n d ix 1 Short Term Excursions for Carbon Monoxide Exposure Exposure to carbon monoxide should be controlled to maintain a carboxyhaemoglobin (C O H b ) level below 3 .5 % (the Biological Exposure Index for C O ). U n der most conditions this will be achieved if the average level over an 8-hour day does not exceed 2 5 ppm, how ever there Is also a need to control brief periods of high C O exposure. T h e following guidelines on short-term exposures are recommended: Short-term Excursions for CO Exposure Concentration (ppm) 200 ppm 100 ppm 50 ppm Exposure Period 15 minutes 30 minutes 60 minutes The C O level should not exceed 400 ppm at any time during the day The sum of the exposure periods during the day at a particular level should not (in total) exceed the period Indicated. Workplace Exposure Standards: Effectivefrom 2001 Page 25 000246 MAK- und BAT-Werte-Liste Die ,,Senatskommission zur Prfung gesundheitsschdlicher Arbeitsstoffe" der Deutschen Forschungsgemeinschaft teilt mit, da die Beratung zu folgenden Stoffen in Krze abgeschlossen sein wird. Damit ist zu erwarten, da eine Verffentlichung der Vorschlge fr MAK- und BAT-Werte bzw. Einstufungen als krebserzeugend, fruchtschdigend oder sensibilisierend fr diese Stoffe in der MAK- und BAT-Werte Liste am 1. Juli 2001 oder 2002 erfolgen kann. Auf das Mandat und die Arbeitsweise der Kommission, wie sie in den Anhngen zu den Mitteilungen abgedruckt ist, wird hingewiesen. Stoff Acetonitril [75-05-8] Aluminium [7429-90-5], seine Oxide [1344-28-1; 1302-74-5] und Hydroxide [21645-51-2; 24623-77-6] Aluminiumoxid-Rauch [1344-28-1] 2-Aminoethanol [141-43-5] Ammonium perfluoroctanoat [3825-26-1] Benzo[a]pyren [50-32-8] B ip h e n y l[92-52-4] Bisphenol-A-diglydidylmethacrylat [ 1565-94-2] Bitumen [8052-42-4] Blei [7439-92-1] und seine Verbindungen l ,4-Butandioldimethacrylat [2082-81-7] p-tert-Butylcatechol [98-29-3] n-Butylmethacrylat [97-88-1] p-tert-Butylphenol [98-54-4] m-Chloramlin [108-42-9] 2-Chloropren [126-99-8] 4-Chlor-o-toluidin [95-69-2] Chromoxychlorid [14977-61-8] Cobalt [7440-48-4] und seine Verbindungen Cyanwasserstoff [74-90-8] Cydohexan [ 110-82-7] 1,2-Diaminoethan [107-15-3] Diskutiert berprfung des MAK-Wert berprfung des MAK-Wertes berprfung des MA-Wertes berprfung auf sensi bilisierende Wirkung Aufstellung eines MAK-Wertes berprfung auf keim zellmutagene Wirkung berprfung des MAK-Wertes berprfung auf sensi bilisierende Wirkung berprfung des krebs erzeugenden Potentials berprfung des genotoxischen Potentials berprfung des BAT-Wertes fr Frauen < 45 Jahre berprfung auf sensi bilisierende Wirkung berprfung der sensi bilisierenden Wirkung berprfung auf sensi bilisierende Wirkung berprfung auf sensi bilisierende Wirkung berprfung auf sensi bilisierende Wirkung berprfung des krebs erzeugenden Potentials berprfung auf keim zellmutagene Wirkung berprfung des krebs erzeugenden Potentials berprfung auf keimzellmutagene Wirkung berprfung des krebs erzeugenden Potentials berprfung des MAK-Wert Aufstellung eines BAT-Wertes berprfung d MAK-Wert Anla Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission berprfung durch die Kommission Anregung aus der Kommission Anregung aus der Kommission Anregungaus der Kommission Anregung aus der Kommission Anregung der BG Chemie Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Praxis Anregung aus der Kommission Anregung aus der Kommission 1 MAK-BAT2001 ___________________I J J J CHEMIESERVICE L Verffentlicht: Bundesarbeitsblatt 2001 Nr. 01, Seite 51 MAK- und BAT-Werte-Liste Bek. des BMA vom 9. Februar 2001 - 111 c 1 -35140- Die ,,Senatskommission zur Prfung gesundheitsschdlicher Arbeitsstoffe" der Deutschen Forschungsgem einschaft teilt mit, d a die Beratung zu folgenden Stoffen in Krze abgeschlossen sein wird. Dam it ist zu erw arten, dass eine Verffentlichung der Vorschlge fr M A K - und B A T-W erte bzw. Einstufungen als krebserzeugend, fruchtschdigend oder sensibilisierend fr diese Stoffe in der M A K - und B A T -W e rte Liste am 1. Juli 2001 oder 2 0 0 2 erfolgen kann. A u f das M an d at und die A rbeitsw eise der Kommission, w ie sie in den A nhngen zu den M itteilungen abgedruckt ist, wird hingew iesen. CASNum m er 75-05-8 Acetonitril Stoff 742 9-90 -5 Aluminium, seine Oxide 1344-28-1 Aluminiumoxid 1302-74-5 Aluminiumoxid 2 16 45 -5 1-2 Aluminiumhydroxid 2 46 23 -7 7-6 Aluminiumhydroxid 1344-28-1 Aluminiumoxid-Rauch 141-43-5 2 -A m in o e th a no l 3825-26-1 Ammoniumperfluoroctanoat 50-32-8 Benzo[a]pyren 92-52-4 Biphenyl 1565-94-2 Bisphenol-A-diglydidyl-methacrylat 8052-42-4 Bitumen 7439-92-1 Blei und seine Verbindungen 7439-92-1 Blei und seine Verbindungen 2082-81-7 1,4-Butandioldimethacrylat D iskutiert berprfung des MAKW ertes berprfung des MAKW ertes berprfung des MAKW ertes berprfung des MAKW ertes berprfung des MAKW ertes berprfung des MAKW ertes berprfung des MAKW ertes berprfung auf sensibilisierende W irku n g Aufstellung eines MAKW ertes berprfung auf keim zellm utagen e W irkung berprfung des MAKW ertes berprfung auf sensibilisierende W irkung berprfung des krebserzeugenden Potentials berprfung des genotoxischen Potentials berprfung des BATW ertes fr Frauen < 45 Jahre berprfung auf sensibilisierende W irku n g A nlass Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission Anregung aus der Kommission berprfung durch die K o m m is sio n Anregung aus der Kommission www.kft.de Email: mail@kft.de 00024* a a i uciuijit xvL>iVivj UlLgCVeHJ Stoffen 'iTS.*.vrrr.'t,|r^iL*.^TA' .*?*. Page 1 o f 15 r*.v.^v.' '^ O verzicht aevaarliike stoffen: M AC waarden Svmbolen aevaarliike stoffen Overzicht R en SZinnen D e officiele definitie van M A C is: D e m a x im a le a an va a rd e concentratie van een gas, d am p, nevel o f v an een stof, is die concentratie in de lucht op de w erkpiek die, voor z o v e r de huidige kennis reikt, bij herhaald e blootstelling o o k g e d u re n d e een lngere tot zelfs e en arbeidsleven o m v atte n d e periode, in het algem een de gezondheid van zowel de w erknem ers alsook hun nageslacht niet benadeelt. De waarde geldt alleen onder de volgende voorwaarden: - voor gezonde, volwassen personen; - voo r w erkperioden van acht uur, onderbroken door rustperioden in een niet-verontreinigde a tm o sfeer; - v oo r een w e rkw eek van veertig uur; - bij licham elijk niet te zw are arbeid; - m its extra bescherm ing aan w ezig is bij stoffen die g em ak ke lijk via de huid worden opgenomen; - mits and ere giftige stoffen in de w erkruim te afw ezig zijn. D e M A C -w a ard e nlijs t behoort bij bijlage 3 van de B eleidsregels A rb eidso m stan d ig h ed en w etg evin g . D e ze bijlage is laatstelijk gew ijzigd in: Stert. 064, 1998 Stert. 126, 1998 Stert. 167, 1998 Stert. 036, 1999 N aam van de stof A c e e ta ld e h y d e Aceetam ide A c e to fen o n Aceton Acetonitril http://www.milieutotaal.nl/html/stof-mac.htm Cas.nr. 75-07-0 60-35-5 98-86-2 67-64-1 75-05-8 MACwaarde TGG 8 uur m g/m 3 180 25 49 1780 70 C MACwaarde T G G 15 m in . M g/m 3 H 000249 12/04/2001. MAC-waardenlijst RDMG Uitgrverij o -A c e ty lsa lic ylzu u r A c ry la ld e h y d e Acrylzuur A d ip in e zu u r Adiponitril Aldrin Allylalcohol Allylpropyldisulfide A lum inium [1] Alum inium alkylverbindingen A lum inium (in w ater oplosbare zouten) A lu m in iu m o xid e [1] Alum inium pyro-poeders 2-A m in o eth an o l A m itro l Am m oniak Am m onium chloride (rook) Amm onium -perfluoroctanoaat Am m onium sulfam idaat p-Anisidine Antim oon en -verbindingen (als Sb) Arsine Asfaltrook (bitumineus) A tra zin e Azinfos-m ethyl A z ijn z u u r A z ijn zu u ra n h y d rid e Azodicarbonam ide Barium en oplosbare -verbindingen (als Ba) Benomyl p-Benzeendiam ine m -Benzeendiam ine Benzeenthiol B e n ze e n -1 ,2 ,4 -tric a rb o n z u u r-1 ,2 -a n h y d rid e p-Benzochinon B erylliu m alu m in iu m silicaat Bifenyl Bifenyi/fenylether-m engsel B is (2 ,3 -e p o x y p ro p y l)e th e r http://www.milieutotaal.nl/htmiystof--mac.htm Page 2 o f 15 50-78-2 5 107-02-8 0,25 79-10-7 5,9 124-04-9 5 111-69-3 8,8 309-00-2 0,25 107-18-6 5 2179-59-1 12 7429-90-5 10 2 2 1344-28-1 10 5 141-43-5 2,5 61-82-5 0,2 7664-41-7 14 12125-02-9 10 3825-26-1 0,01 7773-06-0 10 29191-52-4 0,5 7440-36-0 0,5 7784-42-1 0,2 8052-42-4 5 1912-24-9 5 86-50-0 0,2 64-19-7 25 108-24-7 20 123-77-3 3 7,6 36 C H H H H H H 7740-39-3 0,5 17804-35-2 10 106-50-3 0.1 108-45-2 0,1 108-98-5 2 552-30-7 - 106-51-4 0,4 1302-52-9 0,002 92-52-4 1 7 2238-07-5 0,5 0,04 000250 H 12/04/2001- 000251 Dupont - Washington Works Modeled C8 Ground Level Concentrations (Annual Averages) DRAFT M odel Description DEP - 2000 annual actuals (from original subm ission) Dupont - 2000 annual actuals2 (from consent order subm ission) Date 09/05/01 M axim u m Im pact1 (pg/m 3) 2.77 pg/m3 04/17/02 2.80 pg/m3 DEP - 2000 annual actuals2 (validation o f subm ission) 04/23/02 2.67 pg/m3 DEP - facility permitted allowables (pre con sen t order perm itted levels) 04/23/02 9.47 pg/m3 Note1- All maximum impacts occur at the same fenceline receptor (UTM: 442,135.5 E, 4,346,899 N) Note2- The difference between the modeled results are due to a discrepancy between the way terrain elevations were imported into ISC from USGS DEM's. (highest option vs. interpolated values) Modeling Procedures and Assumptions: ISCST used in EPA Regulatory Default Mode 1 year of onsite meteorology; 1996 14 Sources Rural Mode Simple and Complex Terrain Modes Downwash Calculated with BPEP No Deposition Calculations No Half Life Concentrations calculated only on an average Annual period _ 000252 WVDEP 11671 WVDEP 11672 WVDEP 11673 U TM N orthing (m ) Maximum Modeled C8 Annual Average Concentration Levels Year 2000 Actuai Emissions Benchmark = none M ax Im p act = 2 .7 7 u g /m A3 1.9 ug/mA3 1.6 ug/m*3 1.2 ug/m^S 0.9 u g/m ^ 0.6 ug/mA3 0.3 ug/mn3 000255 ON -4 DRAFT - Version 3.0 9 /5 /2 0 0 1 UTM N orthing (m ) Maximum Modeled C8 Annuai Average Concentration Levels Year 2000 Actual Emissions M ax Im p act = 2 .8 0 u g /m A3 1.9 ug/mA3 1.6 ug/m^3 1.2 ug/mA3 0.9 ug/rrT3 0.6 ug/mA3 0.3 ug/m^S 000256 ON DUPONT RESULTS 4 /1 7 /0 2 Maximum Modeled C8 Annual Average Concentration Levels Year 2000 Actual Emissions Benchmark = none M ax Im p act = 2 . 6 7 u g / m A3 1.9 ug/mA3 1.6 ug/rrT3 1.2 ug/mA3 0.9 ug/rrT3 0.6 ug/mA3 0.3 ug/mA3 W V D EP 11676 UTM Easting (m) 000257 DRAFT - Version 4.0 a /oo /no Maximum Modeled C8 Annual Average Concentration Levels Pre-Consent Order Permit Allowables 4351000 43500004349000' 4348000H 4347000 4346000--1 M ax Im p ac t = 9 .4 7 u g /m A3 1.9 ug/mA3 1.6 ug/mA3 1.2 u g/m 'S Lii_ 0.9 ug/mA3 UTM Northing (m ) 4345000H 0.6 ug/mA3 4344000--1 J0.3 ug/mA3 4343000H atnd 4342000 O-Jn 437000 438000 439000 440000 441000 442000 443000 444000 445000 446000 u t m Easting (m ) 000258 DRAFT - Version 4.0 000259 Well Sampling Results for August 21 - 3 0 , 2002 Page 1 o f 2 October 10, 2002 NEWS RELEASE #9 LATEST WELL FIELD SAMPLING RESULTS Round #6 - Well Field Sampling Results for August 2002 Production Well #1: 3.65 ppb Production Well #2: 4.26 ppb Production Well #3: .952 ppb Production Well #5: 8.09 ppb Test Well #1: .810 ppb Test Well #2: .081 ppb Test Well #3: 4.17 ppb Test Well #4: 12.3 ppb Test Well #5: 6.26 ppb Test Well #6: 1.15 ppb Test Well #6-2: 1.23 ppb Test Well #9: .812 ppb Test Well #10: 1.10 ppb Test Well #11: 1.73 ppb Test Well #12: .824 ppb TEST WELL #4 INVESTIGATION UPDATE Based on sampling conducted from January to April of this year, Test Well #4 has shown the greatest concentrations of C-8. In August 2002, at the request of the Ohio Environmental Protection Agency and the Little Hocking Water Association, DuPont began a focused field investigation to delineate concentrations of ammonium perfluorooctanoate, also known as C-8, in soil and groundwater in the Little Hocking Association well field. Details of how the investigation was to be conducted were contained in a Work Plan entitled "Sampling Investigation Plan for Little Hocking Water Association Well Field, Washington County, Ohio". The Little Hocking Water Association, the Ohio Environmental Protection Agency, and DuPont approved this plan before it was implemented. The field investigation consisted primarily of boring holes in the vicinity of Test Well #4 and obtaining samples of groundwater and soil for analysis. DuPont took some, but not all, of the samples called for in the approved Work Plan. Therefore, the investigation is currently incomplete until the remaining samples are taken and analyzed. It is our understanding from the Ohio Environmental Protection Agency, that the investigation will be completed after review of the sampling results from the initial borings done in August. During the well field investigation, the Little Hocking Water Association had a representative on-site from Bennett and Williams, an environmental engineering firm from Columbus, Ohio. http://www.littlehockingwater.org/press_l 0-10-2002.htm 10/25/2002 Well Sampling Results for August 21 - 3 0 , 2002 Page 2 o f 2 The following results are from borings taken as part of the Test Well #4 Investigation conducted in August. These results are from groundwater samples only. The results from the soil samples are not yet available. Boring S2 (25-30): 78.0 ppb Boring N1 (17-22): 50.8 ppb Boring NW1 (19-25): 34.6 ppb Boring SI (25-30): Non-Detect Boring NE1 (21-27): 5.58 ppb Boring NE1 (56-58): .662 ppb Boring SW1 (28.5-33): .091 ppb Boring SW1 (40-45): 1.02 ppb Boring SW1 (35-40): 1.32 ppb Boring SW1 (45-50): .376 ppb Boring El (21-26): .416 ppb Boring NE2 (20.7-25.7): 1.28 ppb Boring W1 (29-34): Non-Detect Boring NW1 (24-29)-2: 6.22 ppb Boring NW1 (24-29): 5.90 ppb Boring W2 (33-38): 3.35 ppb Boring SW1 (55-56): .254 ppb Boring SW1 (50-55): .166 ppb Obviously, we are concerned about the high concentrations of C-8 found in some of these borings, which are higher than what we have seen in the past. However, these concentrations are still below the 150 part per billion level adopted by the State of West Virginia, and currently accepted by the Ohio Environmental Protection Agency. Our drinking water does not come from these test wells and borings. C-8 levels in our production wells are still far below the 150 ppb level. At this point we are awaiting the results of the soil analyses and DuPont's scheduling of the completion of the Sampling Investigation Plan for the Little Hocking Association Well Field. We remain committed to the pursuit and investigation of this problem, and are dedicated to the protection of our members and the integrity of our water system. http://www.littlehockingwater.org/press_10-10-2002.htm 000261 10/25/2002 000262 CONSENT ORDER ISSUED PURSUANT TO ARTICLES 5 and 12, CHAPTER 22 AND ARTICLE 1, CHAPTER 16 OF THE WEST VIRGINIA CODE. TO: E. I. DU PONT DE NEMOURS AND COMPANY DATE: November 14,2001 West Virginia Department of Environmental Protection Order No. GWR-2001-019 West Virginia Department of Health and Human Resources This CONSENT ORDER is issued by the Director of the Division of Water Resources and Director of the Division of Air Quality, West Virginia Department of Environmental Protection, and the Commissioner of the Bureau for Public Health, West Virginia Department of Health and Human Resources, pursuant to the authority set forth in more detail below. I. INTRODUCTION OF PARTIES. This Consent Order is entered into by and between the West Virginia Department of Environmental Protection [WVDEP], the West Virginia Department of Health and Human Resources - Bureau for Public Health [WVDHHR-BPH], and E. L du Pont de Nemours and Company [DuPont][collectively referred to as the "Parties"]. n . PURPOSE OF CONSENT ORDER. This Consent Order sets forth a series of tasks to be performed by the Parties in order to determine whether there has been any impact on human health and the environment as a result of releases of ammoniumperfluorooctanoate [C8], CAS Number 3825-26-1, to the environment from DuPont operations.' C8 is a material used by DuPont in its fluoroproducts manufacturing process at its Washington Works facility located at Washington, Wood County, West Virginia. C8 is not identified as a hazardous substance, hazardous waste or otherwise specifically regulated under West Virginia or federal statute or regulation. This Consent Order has been negotiated in good faith and the actions undertaken by DuPont pursuant to this Consent Order do not constitute an admission of any liability on its part. DuPont retains the right to controvert in any other proceedings, other than proceedings to implement or enforce this Consent Order, the validity ofthe findings of fact and conclusions of law set forth herein. DuPont agrees to comply with and be bound by the terms of this Consent Order and further agrees in any proceeding to implement or enforce this Consent Order that it 1 Q002G3 EID152937 STB000315 will not contest the validity of this Consent Order or thejurisdiction ofWVDEP and WVDHHRBPH to issue it. III. DEFINITIONS. Whenever the terms identified below are used in the Consent Order or in any exhibit or attachment hereto, the following definitions shall apply: 1. "The Agencies" shall mean the Department of Health and Human Resources, Bureau for Public Health and the Department ofEnvironmental Protection, including the Divisions ofAir Quality and Water Resources. 2. "C8" shall mean the chemical compound ammonium perfluorooctanoate. 3. "Detection Limit" means the lowest analytical level that can be reliably achieved within specified limits of precision and accuracy under routine laboratory conditions for a specified matrix. It is based on quantitation, precision and accuracy under normal operation of a laboratory and the practical need in a compliance-monitoring program to have a sufficient number of laboratories available to conduct the analyses. 4. "Effective Date" shall mean the date set forth in Section XVII of this Consent Order. 5. "EPA" shall mean the United States Environmental Protection Agency. 6. "Force Majeure" shall mean conditions or circumstances beyond the reasonable control of DuPont which could not have been overcome by due diligence and shall include, without limitation, acts of God, action or inaction of governmental agencies, or administrative or judicial tribunals or other third parties, or strikes or labor disputes (provided, however, DuPont shall not be required to concede to any labor demands), which prevent or delayDuPont from complying with the work plan. 7. "Groundwater Monitoring Well" shall mean any cased excavation or opening into the ground made by digging, boring, drilling, driving, jetting, or other methods for the purpose of determining the physical, chemical, biological, or radiological properties of groundwater. The term "monitoring well" includes piezometers and observation wells, which are installed for purposes other than those listed above, but does not include wells whose primary purpose is to provide a supply of potable water. 8. "Groundwater Well" or "Well" shall mean any drilled or excavated groundwater collection system that supplies water forpublic, private, industrial, or agricultural use and shall include drinking water wells. As used in this Consent Order, this term applies only to wells 2 9QQZGi~ EID152938 STB000316 located in West Virginia. 9. "Reimbursable Costs" shall mean costs attributable (on an hourly basis) to the work of Dee Ann Staats, Ph.D. in the negotiation and implementation of this Consent Order, the costs attributable to any other participants on the C8 Assessment of Toxicity Team, as described in Attachment C to this Consent Order, who are serving in that position as contractors to WVDEP, costs incurred by WVDEP in connection with the public meetings described in Attachment C, and costs attributable to any contractor retained at the direction of the Groundwater Investigation Steering Team (GIST). 10. "Washington Works" shall mean the manufacturing facility owned by DuPont and located in Washington, Wood County, West Virginia, as depicted on Exhibit l to this Consent Order. 11. "The Facilities" shall mean the Washington Works and the Local Landfill, depicted on Exhibit 1, the Letart Landfill, depicted on Exhibit 2, and the Dry Run Landfill, depicted on Exhibit 3. 12. "Reference Dose" or "RID" shall mean an estimate (with uncertainty spanning perhaps an order of magnitude or greater) ofa daily exposure level for the human population, including sensitive subpopulations, that is likely to be without an appreciable risk of deleterious effects during a lifetime. Chronic RfDs are specifically developed to be protective for long-term exposure to a compound. 13. "Screening Level" shall mean the concentration in a specific media such as air, water, or soil, that is likely to be without an appreciable risk ofdeleterious effects during a lifetime in the human population. IV. WAIVER OF RIGHTS. DuPont waives any and all rights it may have to appeal or challenge the validity or requirements ofthis Consent Order, and shall not challenge thejurisdiction of the Agencies to issue this Consent Order. This Consent Order applies to and is binding upon the Parties, and their successors and assigns. V. FINDINGS OF FACT. 1. C8 is a chemical substance which has no established state or federal effluent or emission standards. 2. C8 is a perfluorinated surfactant manufactured by the 3M Company and others. 3 000265 EID152939 STB000317 Since the early 1950's C8 has been used by DuPont in its fluoropolymer-related manufacturing processes at its Washington Works facility, located in Wood County, West Virginia. 3. Residues containing C8 from fluoropolymer manufacturing processes at Washington Works are or have been released to the air, discharged to the Ohio River, disposed of at the Facilities, and otherwise shipped off-site for destruction and/or disposal. DuPont also captures for recycle a significant portion of used C8. 4. No permits issued to DuPont authorizing releases ofpollutants to the environment contain specific limitations on the amount of C8 that may be released to the environment. However, C8 releases are addressed more generally in WVDEP Division of Air Quality permits as particulate matter, PMio (particulate matter with an aerodynamic diameter less than or equal to 10 microns), or as a volatile organic compound. 5. Since as early as 1990, DuPont has performed regular, voluntary water sampling to detect the presence and level of C8 in and around certain of its Facilities in West Virginia and has reported the results of this sampling to various government agencies. Currently, DuPont also samples and reports C8 concentrations in water as required by permits issued by WVDEP and EPA. 6. Asa result ofDuPont's sampling, C8 has been detected in varying concentrations in and around certain of its Facilities in West Virginia, including private drinking water wells and public water supplies. 7. Analyses ofwater samples have reported levels of C8 in the Lubeck Public Service District ("LPSD") drinking water supply. 8. DuPont, by and through its use of C8 in the fluoropolymer manufacturing process, is the likely source of C8 presence in and around certain of its Facilities in West Virginia. 9. Along with environmental sampling for C8, DuPont has performed and participated in multiple studies examining the potential effects of C8 exposure on human health and the environment. 10. Studies performed by DuPont and 3M have determined that C8 in sufficient doses, i.e., considering both amount and duration of exposure, is toxic to animals through ingestion, inhalation and dermal contact Studies have also found that C8 is persistent in humans and the environment.1 11. Although DuPont has collected a large amount ofdata on the presence of C8 in the environment, the Agencies believe that additional information will assist them in delineating the extent and concentrations of C8 in the environment at or near the Facilities. Available data collected by DuPont indicates that C8 is present in the surface and groundwater at the Letart and 4 000266 EID152940 STB000318 Dry Run Landfills and at or near the Washington Works facility. 12. WVDEP and WVDHHR-BPH have determined that it is desirable to ascertain the source of drinking water for persons potentially exposed to C8 in groundwater or surface waters in the area of the Facilities. 13. EPA, WVDEP, and WVDHHR-BPH, in consultation and cooperation with one another, have requested, and DuPont has submitted, information and documents relating to the detection and presence of C8 in and around the Facilities and documents with respect to the human health studies being performed related to C8 exposure. 14. Based upon information submitted by DuPont and reviewed to dateby EPA, WVDEP, and WVDHHR-BPH, the Agencies believe that additional data would assist in their evaluation ofwhether the ground and surface waters now containing C8 have a complete exposure pathway to humans and whether persons in and around the Facilities are at risk of adverse health effects from C8 exposure. 15. There have been no independent governmental or non-industrial studies performed on the human health effects of C8 exposure for the purpose of establishing an exposure standard for C8 applicable to the general public. 16. The Agencies have concluded that full site and health assessments are necessary to ascertain the extent and level of C8 concentrations in the environment and to assist them in determining whether C8 presents anypossible danger to the public. DuPont has agreed to participate and assist in this effort 17. The fluoropolymers industryhas committed to EPA to reduce total actual C8 emissions for either the year 1999 or the year 2000 by 50 percent within three to five years of each company's commitment date. DuPont committed to this goal in 2000. 18. DuPont installed, in March 2001, a filter and carbon treatment system at its Washington Works facility that is demonstrating removal efficiency of90-95% of the C8 in its major C8-containing wastewater stream. VI. AUTHORITY TO ISSUE CONSENT ORDER. 1. The WVDEP is the state agency vested with the authority to protect the environment in West Virginia. 2. Article 12, Chapter 22 of the West Virginia Code, the Groundwater Protection Act, grants to the WVDEP the authority to protect the State's groundwater from any contaminant 5 EID152941 STB000319 and, where contaminated groundwater is found, to institute a civil action or issue an order requiring that groundwater be remediated. 3. Article 5, Chapter 22 of the West Virginia Code, the Air Pollution Control Act, grants to the WVDEP the authority to protect the State's air from pollutants and to institute a civil action or issue orders to enforce the statute. 4. The WVDHHR-BPH is the state agency vested with the authority to regulate and protect drinking water supplies in West Virginia. 5. Article 1, Chapter 16 of the West Virginia Code, grants to the WVDHHR-BPH the authority to protect the public drinking water supply of the state and to perform all investigation necessary to assure its purity and safety, and further grants to the WVDHHR-BPH the authority to institute actions and issue orders to restore the purity of said water supply. VII. REQUIREMENTS OF CONSENT ORDER. The Agencies have concluded that it is of great importance to have sufficient data upon which to determine the scope and potential risk of the presence of C8 in the environment in and around the Facilities. Therefore, the Agencies require the following: A. Establishment of Groundwater Investigation Steering Team. 1. A "Groundwater Investigation Steering Team" (GIST) shall be established with members of the team consisting of WVDEP, WVDHHR-BPH, EPA Region HI, and DuPont. The WVDEP representative will be the team leader. The objectives and specific tasks of the team are set forth in full in Attachment A of this Consent Order. However, the primary purpose of the GIST will be to oversee an expeditious, phased approach to fulfilling the majority of the requirements set forth in Sections A through C. The work performed with oversight from the GIST shall be funded by DuPont in accordance with Section VHI of this Consent Order. 2. Upon conclusion ofkey milestones in the tasks set forth in Attachment A, the GIST shall issue interim or final reports setting forth findings of fact and conclusions regarding background data, groundwater monitoring, and plume identification as described in Attachment A. Any groundwater monitoring plan developed pursuant to Attachment A shall survive the termination of this Consent Order and shall be incorporated as a minor permit modification for the Facilities. DuPont reserves the right to request modification ofthe plans upon renewal of the Facilities' permits. B. National Pollutant Discharge Elimination System Requirements. 6 4>008S EID152942 STB000320 1. Except as occasioned by no-flow conditions, DuPont shall perform monthly sampling for C8 at the Local Landfill at certain outfalls identified in West Virginia/National Pollutant Discharge Elimination System ("WV NPDES") Permit No. 0076538 as Outfalls 101, 004 and 005. 2. Except as occasioned by no-flow conditions, DuPont shall perform monthly sampling for C8 at the Washington Works facilityat certain outfalls identified in WV NPDES Permit No. WV0001279 as Outfalls 001,002,003,005,007, and 105. 3. Except as occasioned by no-flow conditions, DuPont shall perform monthly sampling for C8 at Dry Run Landfill at all outfalls identified in its WV NPDES Permit No. WV0O76244. 4. Except as occasioned by no-flow conditions, DuPont shall perform monthly sampling for C8 at Letart Landfill at all outfalls identified in its WV NPDES Permit No. WV0076066. 5. With respect to the requirements ofparagraphs VILB.1through VII.B.4, all sampling shall be performed pursuant to established EPA guidelines, where applicable, and results shall be delivered to the WVDEP within thirty days of receiving such results. DuPont shall record and report all attempts to sample under no-flow conditions. 6. Within 90 days ofthe Effective Date of this Consent Order, DuPont agrees to obtain a sample from each surface or alluvial water intake for public water supplies along the Ohio River in the area extending ten river miles downstream of the Washington Works facility and one river mile upstream ofthe Washington Works facility. If concentrations of C8 above the Detection Limit are found in any sampled public water supplywithin the upstream or downstream segments initiallysampled, the segments within which intakes are to be sampled shall be extended to twenty river miles downstream or two river miles upstream, as appropriate. If concentrations above the Detection Limit are found in any segment so extended, additional sampling will be performed on water intakes within thirty river miles downstream or three river miles upstream, as appropriate. 7. The additional monitoring requirements contained in this subsection shall be incorporated into the Facilities' West Virginia/National Pollutant Discharge Elimination System permits by minor modification. DuPont reserves the right to request a modification of these requirements upon renewal of the permits. C. Toxicological and Human Health Assessment. 1. DuPont agrees to fund the various tasks set forth below as a part of this Consent Order by establishing an escrow account at a bank agreed to by the Parties, or by some other 7 000269 EID152943 STB000321 means agreed to by the Parties. Disbursements from said escrow shall be authorized by the C8 Toxicity Team Leader and DuPont representative jointly as described below. 2. A C8 Assessment of Toxicity Team ("CAT Team") shall be established with members of the team consisting ofrepresentatives of: WVDEP WVDHHR-BPH EPA Region III NICS ATSDR DuPont 3. The WVDEP representative shall be the Tearn Leader. 4. The individual team members, the tasks of the team, and the team objectives are set forth in full in Attachment C of this Consent Order. 5. Upon conclusion of all the tasks set forth in Attachment C, the CAT Team shall issue a final report setting forth findings of fact and conclusions as to what extent there may be health risks associated with C8 at the Facilities. D. Emission Modeling Assessment. 1. The following information shall be submitted to the Division of Air Quality ("DAQ") within 30 days of the Effective Date except where a different deadline is provided in this subsection: a. A complete and accurate list of building dimension parameters for all structures located within the Washington Works facilitythat have a significant impact on the dispersion of C8 emissions. Significant impact for each structure on the site shall be determined based on the "area ofbuilding wake effects" as defined in the EPA User's Guide to the Building Profile Input Program (EPA-454/R-93-038 Revised Feb. 8,1995). b. A complete and accurate list of DuPont's current permitted allowable emission rates and confirmed actual C8 emission rates in pounds per year for the year 2000 for all sources located within the Washington Works facility. Each emission point shall be listed according to its stack I.D. and corresponding permit number. For each stack identified above as emitting C8 DuPont shall list all relevant stack parameters to be used in air dispersion modeling. c. For each emission point (stack) emitting C8, the following information shall be supplied: 8 000270 EID152944 STB000322 i. Phase of C8 (solid, vapor or aqueous solution) at stack conditions. ii. The particle characterization to be used for modeling including the particle size distribution (microns), the mass fraction of C8 in each particle size category, and the particle density (g/cm3). iii. Forparticulate emissions, scavenging coefficients (hr/s-mm) for both liquid and frozen precipitation to be used for wet deposition modeling based upon the particle size distribution and the EPA's Industrial Source Complex, Version 3 Model Guidance (EPA-454/B-95-003b Sept. 1995) CISC Guidance"). DuPont may submit, within 30 days of the Effective Date, information to support the use of the normalized scavenging coefficient in the ISC Guidance (Figure 11 of ISC Guidance) for C8's scavenging coefficients. DAQ shall approve or disapprove withjustification in writing, DuPont's submission. Should DAQ disapprove, DuPont shall have the right, within seven days, to request a meeting with DAQ and USEPA to address the deficiencies set forth in DAQ's letter and to request reconsideration ofDAQ's decision Following a meeting of the parties, DAQ shall issue a decision letter regarding C8's scavenging coefficients within seven days ofthe meeting. DAQ reserves the right to require measurement of C8's scavenging coefficients in its decision and DuPont reserves the right to assert a claim ofconfidentiality in the event such a measurement is made. iv. For gaseous emissions, scavenging coefficients (hr/s-mm) for both liquid and frozen precipitation to be used for wet deposition modeling will be provided as a function of droplet size using formulae in the open literature based on the physical properties of C8 and consistent with Section 1.4 of the ISC Guidance. DuPont may submit, within 30 days of the Effective Date, information to support the proposed scavenging coefficient for gaseous emissions including information on the percentage of C8 emissions that would be in gaseous form. DAQ shall approve or disapprove with justification in writing, DuPont's submission. Should DAQ disapprove, DuPont shall have the right, within seven days, to request a meeting with DAQ and USEPA to address the deficiencies set forth in DAQ's letter and to request reconsideration ofDAQ's decision. Following a meeting of the parties, DAQ shall issue a decision letter regarding C8's scavenging coefficients within seven days of the meeting. DAQ reserves the right to require measurement of C8's scavenging coefficients in its decision and DuPont reserves the right to assert a claim of confidentiality in the event such a measurement is made. d. To the extent that the phases exist, a solid, liquid and vapor phase (T-P) diagram for C8 with respect to pressure and temperature. The temperature and pressure ranges shall be representative ofexhaust gas conditions before and after control equipment Estimates of C8's critical properties shall be provided along with measured ranges ofphase transition temperatures. 9 000271 EID152945 STB000323 e. In lieu of a binaryphase (T-x-y) diagram representing the vapor-liquid equilibrium between water and C8, the solubility and Krafft Point of C8 in aqueous solutions, measured pK value for C8 dissociation in aqueous solutions, and measurements ofC8 concentrations or related acids observed when tested in a head space GC at various concentrations, temperatures, and pHs representative of the ranges observed during actual operating conditions. Furthermore a discussion regarding the volatility of C8 in aqueous solutions as a function of pH will be provided. The information in this paragraph shall be submitted to the DAQ within 60 days of the Effective Date. f. Henry's law coefficient for C8 and a discussion of its dependence on pH. The coefficient shall be defined at various temperatures covering the range observed during actual operations. g. Any carbon adsorption data in the form of isotherms for C8 adsorption. DAQ will provide DuPont an opportunity to comment on modeling methodology and assumptions prior to finalizing the modeling results. 2. Any expenses incurred as a result of accurately supplying the information requested above shall be covered by DuPont. 3. Upon submission of the information required by this Subsection VII.D, DAQ reserves the right to disapprove any data if the analytical methodology or quality control procedures are deemed inappropriate. VIH. REIMBURSEMENT OF COSTS. 1. DuPont agrees to establish an escrow account to fund Reimbursable Costs under this Consent Order. Expenditures from this account shall be made uponjoint approval by a duly designated representative of the WVDEP and ofDuPont ("designated representatives"). Written notice of such designation shall be sent to the persons identified pursuant to Section XVI of this Consent Order. Prior to the execution of this Consent Order, WVDEP has provided DuPont with an estimate ofReimbursable Costs that WVDEP expects to incur under this Consent Order.23 2. Within 10 business days of the Effective Date, DuPont shall deposit in the escrow account funds in the amount of fifty thousand dollars ($50,000). Each expenditure from the escrow account must be supported by an itemized accounting, including invoices and receipts. Said escrow account shall be replenished with additional funds whenever the balance is less than ten thousand dollars ($10,000), or as agreed to by the designated representatives. Any unexpended amount remaining in the escrow account at the conclusion of the work to be performed under this Consent Order shall be returned to DuPont. 3. DuPont's obligation to pay Reimbursable Costs under this Consent Order shall 10 000272 EID152946 STB000324 not exceed two hundred and fifty thousand dollars ($250,000). Except as to Reimbursable Costs which are addressed separately in this section, all other costs incurred by DuPont in carrying out its obligations under Consent Order shall be the sole responsibility and obligation of DuPont. IX. QUALITY ASSURANCE/QUALITY CONTROL. All sampling and analyses performed pursuant to this Consent Order shall conform to EPA guidance regarding quality assurance/quality control, data validation, and chain of custody procedures. The laboratory performing the analyses shall be approved by the Parties prior to sampling. X. C8 REDUCTION PROGRAM. 1. Notwithstanding current permitted emission levels, DuPont agrees to limit overall C8 emissions to the air to no more than actual calendar year 2000 levels on a calendar year basis and shall further provide to the WVDEP monthly emissions reports regarding C8. The reporting requirement contained herein shall be modified to quarterly reports upon the issuance ofa Screening Level derived following the procedures set out in Attachment C. 2. DuPont agrees to reduce emissions to the air and discharges to the water of C8 collectivelyby 50% from actual 1999 levels by December 31, 2003. 3. DuPont shall operate and maintain the filter and carbon bed treatment system at its Washington Works facility with the goal ofachieving 90-95% C8 removal efficiency in its major C8-containing wastewater stream. 4. DuPont shall conduct the following construction projects and abide by the specified dates: a. DuPont shall install an improved scrubber filter to replace recovery device T6IZC on permit R13-815D. Construction shall begin no later than February 28,2002. Initial operation shall begin no later than the date of start up after the April shutdown, or June 28,2002, whichever is earlier. b. DuPont shall modify the stack for emission point T6IZCE so that the emission point elevation is 170 feet above grade. The stack diameter, velocity, and flowrate shall be sized to provide effective dispersion of particulate emissions according to 45 Code ofState Rules, Series 20 (Good Engineering Practice as Applicable to Stack Heights). Construction shall begin no later than February 28,2002. Initial operation shall begin no later than the date of start up after the April shutdown, or June 28,2002, whichever is earlier. At times when device T6IZC is not operating, permitted emissions from scrubber T6IFC shall be emitted to emission point 11 000273 EID152947 STB000325 T6IZCE. 5. DuPont shall conduct a scrubber optimization and recovery improvement program that shall consist of a study of scrubber operation for device C2DWC2 on permit R13-614A. The study shall be complete by the end of March 2002. Provided the results are encouraging, the company shall implement identified improvements for this device and similar improvements for units C2DTC2 on permit R13-614A, C2EHC2 on permit R13-1953, and C1FSC2 on proposed permit for R13-2365A. Implementation of the improvements for the latter devices will be complete no later than the end ofNovember 2002. XL COMPLIANCE WITH SCREENING LEVELS. 1. The following requirements shall apply only if the procedures set out in Attachment C have been followed: a. No later than 60 days after receipt of notification from the Agencies that data or information developed pursuant to this Consent Order or other information that is recent and valid demonstrates that DuPont's operations have resulted in C8 exposures above the Screening Levels derived following the procedures set out in Attachment C, DuPont shall submit a plan for review and approval by the Agencies that is designed to reduce such exposures to levels below the Screening Levels within a reasonable time (the "Remedial Plan" or "the Plan"). b. Within 30 days ofreceipt of the Remedial Plan submitted by DuPont, the WVDEP shall, upon consultation with the WVDHHR-BPH and based upon accuracy, quality, and completeness, either approve or disapprove the Plan. If the WVDEP disapproves the Remedial Plan, the WVDEP shall notify DuPont in writing that the Remedial Plan has been disapproved and shall specify the reasons for such disapproval. DuPont shall resubmit the Remedial Plan as revised to address the deficiencies identified in the notice. DuPont's failure to submit an approvable Remedial Plan shall be deemed a violation ofthis Consent Order. 2. In the event EPA or the WVDEP develops and finalizes a reference dose/screening level for C8 in accordance,with applicable statutory and regulatoryrequirements ("the Regulatory EPA Standard") that would be applicable to Dupont's activities or the Facilities independent of this Consent Order, DuPont's obligations under this Section shall be determined with reference to the Regulatory EPA Standard. DuPont reserves all rights it may have to comment upon, object to, or appeal the RegulatoryEPA Standard in proceedings separate and apart from this Consent Order. XH. COMPLETION OF CONSENT ORDER 1. Except as to DuPont's obligations under Section XL this Consent Order and DuPont's obligations hereunder shall terminate upon issuance of a completion letter(s) from the Secretary of the WVDEP or his designee and from the Commissioner of the WVDHHR-BPH to 12 400274 EID152948 STB000326 DuPont In a timely maimer followingreceipt of a written request from DuPont the respective Agencies shall issue the completion letters) to DuPont or shall issue a letter to DuPont detailing the obligations and work that have not been completed in accordance with this Consent Order. The Parties agree that the Agencies' obligation to issue this letter shall be deemed a non-discretionary duty. 2. DuPont's obligation to achieve and maintain compliance with the Screening Levels as provided in Section XI of this Consent Order shall survive the termination of this Consent Order. Such obligation shall terminate only as provided in Section XI or upon agreement of the Parties. Xffl. ADDITIONAL ACTIONS. The Agencies, individually or collectively, pursuant to their statutoryduty and authority, may determine that additional action, beyond the tasks set forth in this Consent Order, is necessary to protect human health and/or the environment Nothing in this Consent Order shall be construed as restraining or preventing the Agencies from taking such actions. Nothing in this Consent Order constitutes a satisfaction of or release from any claim or cause ofaction against DuPont for any liability it may have pursuant to the federal Clean Water Act, the federal Clean Air Act, the federal Safe Drinking Water Act, the West Virginia Groundwater Protection Act, the West Virginia Air Pollution Control Act, other statutes applicable to this matter, or West Virginia common law. Nothing in this Consent Order in anyway constitutes a modification or waiver of statutory requirements of DuPont and nothing in this Consent Order shall obligate DuPont to undertake any actions not specified herein. XIV. ENFORCEMENT. Enforcement of this Consent Order may be had by the filing of a civil action by any of the Agencies in the Circuit Court of Wood County, West Virginia. Violation of the terms and conditions of this Consent Order by DuPont is a violation ofthe West Virginia Code and may result in enforcement action being taken, including a request for civil penalties as set forth by law. DuPont shall not be liable for violations of this Consent Order due to any"Force Majeure" condition. XV. CONTENTS OF CONSENT ORDER/MODIFICATION. The entirety of this Consent Order consists of the terms and conditions set forth herein and in any attachments or exhibits referenced herein. Modification of the terms and conditions of this Consent Order including any modification of timeframes or deadlines established in this Consent Order shall be made only by agreement of the Parties in writing, except that modifications to any 13 00027S EID152949 STB000327 requirement set out in the attachments to this Consent Order may be made upon consensus of the members of the GIST or the CAT Team, as appropriate. XVI. ADDRESSES FOR ALL CORRESPONDENCE All documents, including reports, approvals, notifications, disapprovals, and other correspondence, to be submitted under this Consent Order shall be sent by certified mail, return receipt requested, hand delivery, overnight mail or by courier service to the following addresses or to such addresses DuPont or WVDEP may designate in writing. Documents to be submitted to WVDEP should be sent to: WV Department of Environmental Protection 1356 Hansford Street Charleston, West Virginia 25301 Attention: Armando Benincasa, Esq. Attention: Dee Ann Staats, Ph.D. Phone No.: (304) 558-2508 Documents to be submitted to WVDHHR-BPH should be sent to: WV Department of Health and Human Resources Bureau for Public Health 815 Quarrier Street, Suite 418 Charleston, West Virginia 25301 Attention: William Toomey, Manager of Source Water Assessment Program Phone No.: (304)558-2981 Documents to be submitted to DuPont should be sent to: E. I. du Pont de Nemours and Company Washington Works P.O. Box 1217 Parkersburg, West Virginia 26102 Attention: PaulBossert Phone No.: (304)863-4305 and 14 00027C EID152950 STB000328 E. I. du Pont de Nemours and Company Legal Department, Suite D-71 1007 Market Street Wilmington, Delaware 19898 Attention: Bernard J. Reilly, Esq. Phone No.: (302)774-5445 XVn. AUTHORIZED SIGNATORIES/NON-ADMISSION. The undersigned representatives state that they have had hill and fair opportunity to review this Consent Order and have had opportunity to allow for their counsel to do the same, and therefore enter this Consent Order freely and with full knowledge of its terms and conditions. The undersigned do hereby confirmthat they have the authority to enter into this Consent Order and have the authority to bind their respective party. Neither the terms of this Consent Order, nor execution thereof shall constitute an admission by DuPont of any fact or of any legal liability. DuPont expressly reserves all rights and defenses that may be available in any proceeding involving third parties or involving WVDEP and WVDHHR-BPH in any other matter. This Consent Order may be signed in counterparts and shall be effective upon signature of all the Parties below ("Effective Date"). WEST VIRGINIA DEPARTMENT OF ENVIRONMENTAL PROTECTION BY: 1 1 1356 Hansford Street Charleston, West Virginia 25301 RETARY tentai Protection Entered this A ^ dayof 2001, by: 15 000277 EID152951 STB000329 WEST VIRGINIA DIVISION OF HEALTH AND HUMAN RESOURCES - BUREAU FOR PUBLIC HEALTH BY: Bureau for Public Health West Virginia Department ofHealth and Human Resources Diamond Building, Room 702 350 Capitol Street Charleston, West Virginia 25301 Entered this f G --f avoi U n 2001, by: E. 1. DU PONT DE NEMOURS AND COMPANY 16 000274 EID152952 STB000330 Attachment A C8 GROUNDWATER INVESTIGATION STEERING TEAM A team of scientists shall be assembled to assess the presence and extent of C8 in drinking water, groundwater and surface water at and around the DuPont Washington Works facility, and the Local, Letart, and Diy Run Landfills. The Groundwater Investigation Steering Team (GIST) shall include scientists from WVDEP, WVDHHRBPH, EPA Region HL, and DuPont. DuPont shall fund the GIST via an escrow account as provided in Section VIH of the attached Consent Order ("the Consent Order"). Disbursements from this account shall be authorizedjointly by the WVDEP GIST leader, and the DuPont representative, Andrew S. Hartten. A schedule summarizing key GIST tasks, submittals, start and end dates is provided at the end of this document GIST Member Organizations/Representatives/General Functions WVDEP David Watkins -Groundwater Protection- GIST team leader; escrow funds disbursement oversight; project management and coordination George Dasher-advisor and technical review Dee Ann Staats, Ph.D.-advisor EPA Region HI Garth Connor-science advisor Jack C. Hwang - Hydrogeologist Roger Rheinhart-Environmental Engineer DuPont Andrew Hartten-Principal Project Leader/Hydrogeologist-tectmical review, project management and coordination of field investigation activities; escrow funds disbursement oversight. WVDHHR-BPH William Toomey-Manager, Source Water Assessment Program- Bureau for Public Health advisor A -l 000273 EID152953 STB000331 GIST Team Objectives and Efforts The primary objective of the GIST is to efficiently review and direct groundwater and surface water monitoring and investigation activities as prescribed in the Consent Order and in this Attachment. The GIST will utilize a phased approach and employ rapid team decision making toward meeting the requirements in an efficient and timely manner. Unless otherwise directed by the GIST, the tasks outlined below shall be performed by DuPont or its representatives. The GIST will issue a final report(s) with findings and conclusions regarding groundwater quality in and around the Facilities, and the extent of groundwater contamination in and around the Facilities. The GIST final report shall further make recommendations regarding the need for any further work or actions that need to be taken to assure protection of groundwater quality and human health into the future. The tasks set forth below and in the Consent Order are the minimum tasks to be performed by DuPont and the GIST pursuant to the Consent Order. Additional tasks may be necessary to assure the goals [full groundwater assessment and C8 impact, plume identification, and receptor identification] of the GIST and the Consent Order are met. Those tasks shall be agreed upon by the GIST. Key Tasks of GIST Task A: Groundwater Use and Well Survey/Groundwater Monitoring Objectives: Conduct a distance-phased groundwater well and water use survey within a 1-mile (and possibly 2 and 3-mile) radial distance or directionally focused distance of the Washington Works and Local, Letart, and Dry Run Landfills.1 Summary: The phased approach to the water and groundwater well use survey will allow the GIST to focus efforts along established C8 impact transport pathways and cease activities in directions where impacts are not present or where there are minimal concentrations. Data results tables will be generated in a timely manner to allow the GIST to meet, evaluate the data, and determine the next course of action. The GIST will determine when the final groundwater well use survey shall be released. DuPont agrees to perform, under the supervision ofthe GIST and through an agreed-to third party, a groundwater use and well surveyidentifying and sampling all groundwater wells within a 1-mile radius of the three landfills set forth above and the Washington Works facility. The phased approach may be amended by the GIST should field conditions require, e.g., lack of sampling wells in the 1-mile radius, lack ofquality sampling points within the 1-mile radius. Sampling shall be performed with the specific purpose of finding and measuring the C8 concentration in water. Should concentrations of C8 found in groundwater wells exceed l pg/1 within the 1-mile radius, the GIST will determine 1 The water use survey should be in substantially the same format as Attachment B. A-2 006280 EID152954 STB000332 whether to expand the well survey to a 2-mile radius, a 3-mile radius, or in a specific direction only. Drinking water wells that measure above 1 pg/1 shall be re-sampled at a frequency to be determined by the GIST. Note: The level of 1 ug/1 is utilized in this Consent Order for monitoring purposes only and not as a benchmark for determining risk and this level may be adjusted as determined the GIST in furtherance ofthe tasks and objectives set forth in this Attachment Tuning: The initial well survey within a 1-mile radius of the Facilities will be conducted within 60 days of the Consent Order's Effective Date. Additional well survey activities will be conducted on a schedule to be determined by the GIST. Task B: Assessment of Existing_Groundwater and Surface Water Monitoring Data Objectives: Develop and implement a monitoring plan that determines the presence and extent of C8 in drinking water, groundwater, and surface water in and around the Washington Works facility and Local, Letart, and Dry Run Landfills and provide a compilation of all available groundwater/surface water monitoring and hydrogeologic characterization data for each facility, as reflected in Table A-l. Summary: The GIST will be tasked with an expedited evaluation of existing historical data and hydrogeologic information in order to prioritize the initial scope ofwork for continuing groundwater monitoring and any additional investigation activities (e.g., monitoring well installations) required under plume identification. DuPont shall provide all historical data and hydrogeologic information it may have related to the Facilities. Timing: Within 30 days of the completion of Task A, the GIST will review all the C8 analytical and facility hydrogeologic information to determine the scope ofwork for groundwater monitoring and additional investigation. The GIST will then establish a schedule for those activities. It is anticipated that a summary of all historical information for each facilitywill be submitted to GIST within 60 days of the Consent Order's effective date. Task C: Plume Identification/Groundwater Assessment Objective: Determine the vertical and horizontal extent of any and all C8 impacted groundwater exceeding 1ug/1 or as directed by the GIST, which may determine a lower threshold than 1ug/1. This task shall also include an assessment of C8 impacted groundwater at Letart Landfill and its impact on the Ohio River and public water supplies along the river. Summary: The GIST shall first review historical data and results of Task A to determine an appropriate scope ofwork. Activities should be prioritized to address groundwater plumes contributing to or with the potential to flow toward off-site receptors, with emphasis on those areas where groundwater is used as a drinking water source. A-3 000281 ________ EID152955 STB000333 Upon completion of investigation activities, DuPont shall provide the GIST with predicted groundwater flow and contaminant transport models to assess future plume migration. Timing: Upon review of all available information and on a schedule to be determined by the GIST, the GIST will complete an initial evaluation ofdata to determine and prioritize plume identification. The timing of the initial phase ofplume identification/investigation activities and other activities will be on a schedule established by the GIST. Further investigatory activities needed and agreed to by the GIST to carry out the goals of the GIST shall be performed by DuPont on a schedule established by the GIST. Modeling Any and all modeling performed pursuant to this attachment and the Consent Order shall use Groundwater Modeling System, or some other model as approved by the GIST. A-4 000282 EID152956 STB000334 TABLE A-l a. Dependent upon the availability of certain information, an historical data summary documented in a report that includes: b. A groundwater monitoring plan for the Facilities which should address, at a minimum: <*.>/ ' Jii, A location map. A site map showing the location ofall known groundwater monitoring wells, residential groundwater wells and public water supply within a 1-mile radius the Facilities. Top-of-groundwater maps. These should span the entire sampling life of the site and should be no less than yearly. If DuPont has only one year's worth of data for a given site, then these maps should be for each quarter; if DuPont has several years worth of data for each site, then these maps can be annual. C8 concentration contour maps. These should span the entire sampling life of the site and should be no less than yearly. If DuPont has only one year's worth of data for a given site, then these maps should be for each quarter; if DuPont has several years worth of data for each site, then these maps can be annual. All the C8 groundwater data that has been collected to date. These data should be submitted in easy-to-read tables. These tables should use the method, "<x", to designate all concentrations below the laboratory's minimum detection limit (not "ND" or some other abbreviation), and they should use "mgr or "pg/" as the unit designation. If unable to provide the above data, DuPont shall document the reasons why it is unable to gather and submit the information. C8 sampling. The samples should be taken from all the wells at the three landfill sites and from a select number of wells at the Washington Works plant. These select wells are to be chosen by the GIST before the groundwater monitoring program begins based on evaluation of historical data/infonnation. The frequency of sampling shall be monthly for the first four months following the Effective Date and quarterly thereafter. Any new wells required for monitoring or plume identification purposes will be integrated in each site's groundwater monitoring program on a schedule agreed to by the GIST. A-5 000283 EID152957 STB000335  Report ofResults. Reporting should be quarterly and to the WVDEP Groundwater Program at the following address. WVDEP Division of Water Resources Groundwater Program 1201 Greenbrier Street Charleston, West Virginia 25311 Re: DuPont/C8 monitoring Each report should include the following: (a) A site location map. (b) A site map showing the groundwater monitoring well locations. (c) A top-of-groundwater map. (d) A C8 concentration map. (e) Groundwater elevation and well screen data. (f) A table of all the historical C8 sampling data. Note: where available information allows, abbreviations should not be used to designate No Detect concentrations and the units "ppb" and "ppm" should not be used. (g) Laboratory analysis sheets. (h) Chain ofcustodyrecords. A-6 000284 EID152958 STB000336 Attachment B Name: Address: GROUNDWATER WELL USE SURVEY Phone: ____________________ _ Best Time to Contact Owner:_______________ 1. Do you have one or more water well(s) on this property? (It need not be in use currently.) If no, stop now and return survey. Y es____ N o ____ County Water Well Permit No. _____________________ 2. Is the well(s) currently (circle one) used unused or filled in? 3. Is the well(s) used for drinking water? Y es____ N o ____ 4. Is this well(s) used for other purposes? If yes, please specify uses below: 5. What is the approximate frequency ofuse? Circle One: Daily Weekly Monthly Summer 6. Date last used? ________________________ 7. Is there a pump in the well? Y es____ N o ____ 8. Is there a conditioner, softener, chlorinator, filter, or other form of treatment for the system? Y es____ N o ____ If so, what is the form of treatment? ___________________ B-l O002SS EID152959 STB000337 9. Is there any faucet where water does not first pass through the treatment system? Yes ____ No ____ If yes, is it (circle one) inside or outside? 10. What year was the well constructed? *______ 11. Please provide the following information regarding the well(s) if known: (circle one) A. Total Depth (feet below ground surface): 30-60 60-90 90-120 120 or more B. Casing Type: PVC steel stone none other_____________ C. Well Construction: dug drilled open or uncased bedrock D. Screened Interval (length in feet): 0-10 10-20 20-30 30^60 60 or more E. Well Diameter (inches): 0-6 6-12 12-24 24 or more B-2 00628$ EID152960 STB000338 Attachment C C8 ASSESSMENT OF TOXICITY TEAM A team of scientists shall be assembled to assess the toxicity and risk to human health and the environment associated with exposure to ammonium perfluorooctanoate (C8) releases from DuPont's activities. The C8 Assessment of Toxicity Team (CAT Team) shall include scientists from academia, government, non-profit organizations, and industry. The CAT Team also shall include the WVDEP Environmental Advocate, Pam Nixon, as a representative of West Virginia's citizens. The WVDEP, utilizing funds from an escrow account funded by DuPont, shall contract with a non-profit organization, the National Institute for Chemical Studies (NICS), for the services described herein. Point of contact for the NICS shall be Jan Taylor, Ph.D. The NICS shall subcontract with Marshall University's Center for Rural and Environmental Health for services in risk communication provided by James Becker, M.D. and his staff. Dr. Becker shall familiarize himselfwith the toxicity of C8, the work performed by TERA as described herein, and attend public meetings to provide expertise in risk communication. The NICS shall subcontract with the non-profit scientific organization, Toxicology Excellence for Risk Assessment (TERA) whose point of contact is Joan Dollarhide, Ph.D. The TERA shall provide services in toxicology and risk assessment. Work assignments, tasks, and deliverables are described below. CAT Team Member Organizations/ Representatives1/ General Functions WVDEP Dee Ann Staats, Ph.D. - Science Advisor - team leader, escrow funds disbursement oversight; project management and coordination; toxicology/risk assessment and communication; Pam Nixon - Environmental Advocate - advisor, NICS Jan Taylor, Ph.D. -contractor administrative oversight; James Becker, M.D. (Marshall University) - consultant in risk communication; TERA (point of contact: Joan Dollarhide, Ph.D.)- consultant in toxicology/risk assessment; 1 The parties may, in their discretion, elect to substitute their representatives with persons ofsimilar qualifications. C-l 000287 - EID152961 STB000339 DuPont Gerald Kennedy, Director of Applied Toxicology and Health, Haskell Laboratory - reviewer toxicology; escrow funds disbursement oversight; John Whysner, M.D. - toxicology/risk assessment and communications; Paul Bossert - Washington Works Plant Manager - communications; The following members of the CAT Team shall act as reviewers or advisors. WV Department of Health and Human Resources - Bureau for Public Health (WVDHHR-BPH) William Toomey- Manager, Source Water Assessment Program - advisor, Barbara Taylor - Director, Office of Environmental Health Services - advisor, Local representative - advisor, Environmental Protection Agency (EPA) Headquarters - Jennifer Seed - reviewer and advisor toxicology; Region IUPhiladelphia - Samuel Rotenberg, PhD. - reviewer and advisor toxicology/ risk assessment; Garth Connor - advisor hydrogeology, Roger Reinhart - reviewer and advisor Safe Drinking Water Act; Cincinnati - John Cicmanec, DVM- reviewer and advisor toxicology; Agency for Toxic Substances and Disease Registry (ATSDR) Atlanta - John Wheeler, Ph.D. - reviewer and advisor in toxicology/ risk assessment; Philadelphia -Lora Werner - coordinator for ATSDR; Non-CAT Team Efforts Other efforts are currently underwaywhich may produce information for the CAT Team to utilize. The CAT Team will coordinate and communicate closely with these other efforts. These include: 1. Dupont's air modeling of C8 emissions from the Washington Works plant; 2. WVDEP's air modeling of C8 emissions from the Washington Works plant; C-2 00028* EID152962 STB000340 3. USEPA Draft Hazard Assessment which summarizes the available toxicity information regarding C8, to the extent completed prior to the assessment contemplated herein; 4. ATSDR's Health Consultation that estimates the risk to the community associated with C8 in drinking water from the Lubeck Public Service District, to the extent completed prior to the assessment contemplated herein. 5. Existing C8 concentrations in Lubeck Public Service District data. 6. Groundwater C8 Analysis (see GIST activities described in Attachment A) and Well Use Survey (see example survey in Attachment B) at the residences in the area of the 3 landfills and the Washington Works Plant. Tasks of CAT Team The tasks to be performed by the CAT Team are described briefly in Table 1, and in more detail below. These tasks are discussed below within the context of a Scope of Work for both Dr. Becker and for TERA as well. Tasks ofthe CAT Team shall be organized into three phases. Phase I includes those tasks necessary to prepare for and hold the first public meeting. In Phase A, TERA shall conduct such scientific tasks as: reviewing available toxicity and epidemiological studies; developing Provisional Reference Doses and Screening Levels for protection of human health; evaluating existing information relative to ecological health; and conducting one general risk assessment involving comparisons of exposure concentrations to Screening Levels, for the three landfills and the Washington Works Plant, and the Lubeck Public Service District. TERA shall prepare a report on their findings. Phase HI includes those tasks necessary to prepare for and hold the second public meeting. The results of the C8 groundwater analysis and risk assessment shall be presented in the second public meeting. No communication between Dupont representatives and NICS, Dr. Becker, or TERA shall be permitted without the participation of Dr. Staats. All information will be provided to Dr. Becker and TERA by WVDEP; thus, all information contributed to the effort by Dupont shall be sent in triplicate to Dr. Staats for forwarding to Dr. Becker and TERA Phase I TASK A-1: First Public Meeting Two public meetings are anticipated for this project. The First Public Meeting shall occur in Phase I for the purposes of introducing the CAT Team and other involved parties to the public; relating historical information on previous concentrations of C8 in Lubeck Public Service District water supply, informing the citizens of the ensuing activities; and inviting the public to participate by cooperating with sampling and survey efforts in the Groundwater C8 Analysis and Well Use Survey. In order to prepare for the C-3 00028* EID152963 STB000341 First Public Meeting, CAT Team members shall familiarize themselves with the available toxicological information concerning C8. A CAT Team meeting shall be held immediately prior to the first public meeting to: (l) conduct a site visit to the three landfills and the Washington Works Plant, and surrounding residential areas; (2) discuss the toxicity of C8 and other pertinent data; (3) prepare an agenda for the public meeting; (4) coordinate and prepare for the public meeting. Finally, the First Public Meeting will be held and public questions and comments will be recorded by WVDEP. TABLE 1. TASKS OF CAT TEAM Task A: Public Meetings (two meetings are anticipated) Objective: to inform the local citizens of the following: (in Meeting #1) intent to perform a groundwater well use survey and analysis for C8; intent to develop Screening Levels; and to ask for their cooperation in conducting the water use survey, and (in Meeting #2) results of survey, chemical analysis, and risk assessment. Note that an interimpublic meeting may be required should six months pass from the first public meeting and the CAT Team Final Report has not been issued. Primary Responsibility: Staats_______________________________________ Task B: Development ofProvisional Reference Doses Objective: to develop Provisional References Doses for C8 for the inhalation and ingestion (and dermal, if possible) routes of exposure. Primary Responsibility: TERA_________________________________________ Task C: Development of Screening Levels Based on Protection ofHuman Health Objective: to utilize the Provisional Reference Doses to develop human health risk-based Screening Levels for C8 in air, water, and soil. Note a determination of the potential carcinogenicity of C8 will be conducted as well. Primary Responsibility: TERA__________________ `_______________________ Task D: Ecological Data Review Objective: to review available information to determine whether sufficient studies have been performed and data have been collected to develop screening criteria for ecological receptors. Primary Responsibility: TERA____________________________________ _____ TaskE: Draft Report and Final Report Objective: to present and discuss the results of the above tasks. Primary Responsibility: TERA_________________________________________ Phase n Tasks B. C. D. and E Development ofProvisional Reference Doses and Screening Levels, and Risk Assessment In Phase n, TERA shall conduct the toxicological and risk assessment activities. After having reviewed the toxicological information regarding C8 provided by WVDEP, TERA shall consult with toxicologists on the CAT Team, as coordinated by Dr. Staats, regarding its proposed approach for this project. Following such consultation, TERA C-4 00029 _ EID152964 STB000342 shall develop Provisional Reference Doses for C8 for the oral, inhalation, and dermal (if possible) routes of exposure. Thai TERA shall calculate Screening Levels for water, soil and air based on the risk factors they have estimated. TERA shall perform one general risk assessment involving comparison of exposure concentrations to Screening Levels for the three landfills and the Washington Works Plant, and the Lubeck Public Service District water supply, that focuses on current risk to human health, including workers and residents. This risk assessment shall include: (1) identification of reasonably anticipated land use, surface water and groundwater use; (2) identification of receptors; (3) identification of exposure pathways; (4) identification of exposure concentrations; and (5) comparison of exposure concentrations to appropriate Screening Levels. TERA shall utilize data obtained from the other efforts discussed above such as air modeling; groundwater C8 concentrations in residential and public wells; residential groundwater well use survey; the USEPA's Draft Hazard Assessment; and ATSDR's Health Consultation (if available). TERA also shall review available information to determine whether sufficient studies have been performed and data have been collected to develop screening criteria for protection of ecological health, particularly aquatic life. TERA shall prepare a draft and a final document that discusses the results of their efforts and summarizes the data utilized from other efforts. As the tasks of the CAT Team and other involved parties' progress, data gaps and research recommendations may become evident. These shall be included in TERA's report as suggestions for further research to elucidate the toxicity of C8. Phase HI Second Public Meeting The purpose of the Second Public Meeting is to present to the citizenry the results of the efforts of the GIST and CAT Teams including C8 concentrations in groundwater from residential wells and public wells the screening levels and the general risk assessment. Air modeling results of the efforts of WVDEP and Dupont will be discussed also. The WVDEP will address any further actions that may be necessary. C-5 000291 EID152965 STB000343 SCOPE OF WORK FOR JAMES BECKER, MJ). Dr. Becker is a medical doctor specializing in environmental health at the Marshall University School of Medicine Center for Rural and Environmental Health. He will be assisting the WVDEP in his specialty area of risk communication at the two anticipated public meetings. The specific tasks assigned to Dr. Becker re described below. Phase I Task A-l: First Public Meeting Dr Becker will assist in preparation for the first public meeting, and attend the meeting providing expertise in risk communication. He will familiarize himselfwith the available toxicological data, which will be provided to himby WVDEP, with particular emphasis on the epidemiological studies. Note that the toxicological data already has been summarized in the Draft Hazard Assessment prepared by USEPA. No literature search or document retrieval will be required. Specific subtasks required in Phase I to prepare for the first public meeting are described below: Subtask 1- Familiarization with toxicological data provided by WVDEP including but not limited to: a. 8 compact discs of information provided to USEPA under TSCA by 3M Corp (note only a small portion ofthis information concerns C8); b. Draft Hazard Assessment document from USEPA; c. ACGIH Threshold Limit Value (TLV). d. Journal articles and other information provided by WVDEP. Subtask 2 - Attend a meeting prior to the first public meeting to: a. conduct a site visit of the 3 landfills and the Washington Works Plant, and local residential areas; b. discuss and prepare an agenda; c. discuss the toxicology and risks associated with C8 with the other CAT Team members. Subtask 3 - Attend First Public Meeting Phase III Task A-2 Second Public Meeting Dr Becker will assist in preparation for the second public meeting, and attend the meeting providing expertise in risk communication. The following subtasks will be required: Subtask 1- Familiarization with the toxicological and risk assessment report prepared by TERA; C-6 600292 EID1S2966 STB000344 Subtask 2 - Attend a meeting prior to the second public meeting to: a. discuss the toxicology and risks associated with C8 with the other CAT Team members; b. discuss and prepare an agenda. Subtask 3 - Attend Second Public Meeting Note that the second public meeting is assumed to be the final public meeting; however, results of data collection may warrant additional public meetings and an expansion of the Scope of Work. C-7 __ 000293 EID152967 STB000345 SCOPE OF WORK FOR TERA TERA (Toxicology Excellence for Risk Assessment) is a non-profit organization that applies sound toxicological data to the risk assessment process to find common ground between environmental, industiy, andgovernment groups. TERA will be providing services in toxicology and risk assessment. TERA scientists will be developing risk factors and screening criteria; and conducting one general risk assessment for the 3 landfills, Lubeck Public Service District water supply and the Washington Works Plant. The specific tasks assigned to TERA are described below. Phase n Tasks B, C, D, and E: Development of Provisional Reference Doses and Screening Levels, and General Assessment of Risk Sublask 1- TERA staffwill familiarize themselves with the toxicological data provided to by WVDEP. No literature search or document retrieval will be required. Toxicological data to be provided to TERA shall include but is not limited to the following: a. 8 compact discs of information provided to USEPA under TSCA by 3M Corp (note only a small portion of this information concerns C8); b. USEPA Draft Hazard Assessment for C8; c. Journal articles and other information submitted to WVDEP by DuPont. Subtask 2 - TERA staffwill: a identify all possible critical toxicological studies suitable for developing Reference Doses for the oral, inhalation, and dermal (if possible) routes ofexposure; b. outline methodology for developing said Reference Doses and for developing Screening Levels for air, water, and soil based on said Reference Doses corresponding to each critical study identified in subtask 2-a; c. convene a meeting at the TERA facility in Cincinnati, Ohio, to present their findings in subtask 2-a and 2-b, and consult with CAT Team toxicologists as coordinated by Dr. Staats; d. finalize Reference Doses and Screening Levels based on recommendations of the CAT Team toxicologists as coordinated by Dr. Staats. Subtask 3 - TERA shall conduct one general risk assessment for the three landfills and Washington Woiks Plant, and the Lubeck Public Service District water supplybased on current risk to human health. This risk assessment shall include: a) identification ofreasonably anticipated land use, surface water and groundwater uses; C-8 000204 EID152968 STB00034 6 b) identification ofreceptors; c) identification ofexposure pathways; d) identification ofexposure concentrations; e) comparison ofexposure concentrations to appropriate Screening Levels; TERA shall utilize the following data in the risk assessment process: a) air modeling data from DuPont; b) air modeling data from WVDEP; c) water use data from the Well Use Survey; d) groundwater data from the Groundwater Well Analysis of C8 for residential wells; e) drinking water data from Lubeck Public Service District wells; f) any available ATSDR Health Consultation that assesses potential health effects from exposure to C8 in public supply drinking water. Subtask 4 - TERA shall reviewthe ecological data and determine whether there is sufficient information to support the development of a C8 Screening Level for protection of ecological health Subtask 5 - TERA shall compile and discuss the results ofthe above tasks into a comprehensive report (draft and final versions), which also refers to and provides a brief summary of the following: a) USEPA's Draft Hazard Assessment of C8; b) DuPont's air modeling data; c) WVDEP's air modeling data; d) groundwater data from the Groundwater C8 Analysis and Well Use Survey of Local Residents, and Lubeck Public Service District; e) ATSDR Health Consultation that assesses potential health effects from exposure to C8 in public supply drinking water, if available. Additionally, TERA shall include in the report any insightsor recommendations for future research gleaned during this process that would further elucidate the toxicity of C8. Also, TERA shall provide in the report of a summary discussion of the relevance the carcinogenicity of C8 in rats to humans. C-9 00089& - - EID152969 STB000347 Scure u s e s Lfttto Mocwng. Olla -- Quodranqlc S ITE LOCATION MAP Corporato Romodlatlon Group EXHIBIT 1 D vjP o nl W a sh in g to n W orks W a sh in g to n . W est V irg in io *M mM mm. 9/O /O t ML km m m. ruMiC (M nC M mc_Loc rm*m 1 00029S ------- EID152970 STB000348 w. VA SOURCE* NEV HAVEN. W -O W O OUMKANO 2000 SCALE 2000' <3 I > ^ C o r p r tt* R m *dbktion G ro q p 4A+ B(n m lo fcw tn J u r t i l m C H U 9 -C MtmtmM. Com^ E X H IB IT 2 S IT E L O C A T IO N M A P L e ta rt Landfill S ite P a r k e r b u r g . WV WX mmm M (V a. TSM U "1 00 0257_______________610,52971 STB000349 EXHIBIT 3 a 1200 SITE LOCATION MAP Corporate Rtroodatton droid 4ft If HIM IIM M IhPmt m d W W M m m td 27Boria* Mil P l a ta , B uttdtn^ Dry R u n L a n d fill W ood C o u n ty, W est V irg in ia BT LJU lStU BM r~ 1"* t i 00029* 000299 DRAFT: DEVELOPMENT OF PROVISIONAL ORAL AND INHALATION REFERENCE DOSES AND PRELIMINARY SCREENING LEVELS FOR AMMONIUM PERFLUOROOCTANOATE A Provisional Oral Reference Dose (PRfDo) of 3 x 10-5E or 0.00003 mg/kg/day for Ammonium Perfluorooctanoate (C8) and a Provisional Inhalation Reference Concentration (PRfCi) of 0.02 pg/m3have been developed by WVDEP. Subsequently, a Preliminary Screening Level (PSLw) for groundwater of 1 ppb was calculated based on this PRfDo and on the model for the water ingestion exposure pathway with default parameters commonly used by USEPA and WVDEP. The PRfCi of 0.02 pg/nr would serve as the Preliminary Screening Level (PSLi) for air. The scientific rationale used to develop the PRfCi and the PRfDo, and to calculate the PSLw is described below. Development of the Provisional Oral Reference Dose: .Ammonium perfluorooctanoate (C8 or APFO) is a potent synthetic surfactant. In biologic media, the ammonium quickly dissociates. C8, as perfluorooctanoic acid (PFOA), comprises 93 - 98% of FC-143 FLUORAD Brand Fluorochemical Surfactant. Toxicity studies have been conducted on APFO, PFOA, and FC-143. The USEPA has conducted a literature search and review of toxicological data regarding PFOA; their findings are summarized in the Draft Hazard Assessment of PFOA (in preparation). This document, including supporting references, and information provided to WVDEP by DuPont, and the data contained on 7 compact discs as part of the TSCA submittal by 3M were the major sources of toxicological information utilized in the development of the reference doses. The first step in the development of a reference dose is to identify appropriate exposure studies. Chronic studies utilizing the appropriate route of exposure and animal model are most highly desirable. However if such studies are not available, then subchronic studies utilizing other routes of exposure may be employed for reference dose development by including additional uncertainty factors. Ideally a NOAEL, No Observable Adverse Effect Level, was determined in the study; however, if a NOAEL was not determined, then a LOAEL, Lowest Observable Adverse Effect Level, may be employed in reference dose development by including an additional uncertaintly factor. The only chronic oral exposure study available was conducted in male and female rats fed FC-143 over a two-year period (3M, 1987). A LOAEL of 300 ppm (14.2 mg/kg/day for male, and 16.1 mg/kg/day female) was determined in rats based on decreased body weight gains; increased liver and kidney weight; and toxicity in the hematological and hepatic systems. However, a LOAEL for female rates of 30 ppm (1.6 mg/kg/day) was determined based on incidence of ataxia and reversible ovarian tubular hyperplasia. To date, four 90-day subchronic oral exposure animal studies have been conducted - two in monkeys and two in rats. A LOAEL of 30 ppm (1.72 mg/kg/day) was determined by Goldenthal (1978a) in male rats exposed to a diet including FC-143 based 000300 WVDEP 12496 on increased liver weight; increased blood glucose; and decreased red cell counts. Palazzolo (1993) found a NOAJEL of 30 ppm (1.44 mg/kg/day) and a LOAEL of 100 ppm (4.97 mg/kd/day) based on decreased body weight and body weight gain, and on increased absolute and relative liver weights with hepatocellular hypertrophy in male rats exposed to PFOA in the diet for 13 weeks. Goldenthal (1978b) determined an oral NOAEL of 3 mg/kg/day in rhesus monkeys. However, this dose group occasionally had soft stools or moderate to marked diarrhea, and frothy emesis. Also, there were trends toward increased glucose levels, and decreased alkaline phosphatase levels in this dose group. Butenhoff, et al., (2001) found an oral LOEL of 3 mg/kg/day based on increased liver weight in cynomolgus monkeys, which occurred at serum concentrations that overlapped those observed in some workers with high exposure; therefore the liver enlargement was considered to be a significant effect by the authors. A NOEL was not determined in this study. Because the monkey is most physiologically similar to humans, as evidenced by the long half-life of C8 in humans (1 - 3.5 years) and monkeys. This LOEL was utilized to estimate an the PRfDo as decribed below: Calculation of the Oral Provisional Reference Dose: PRfDo = LOEL (UFH) (UFA) (UFS) (UFL) (MF) where: PRfDo = Provisional Oral Reference Dose (mg/kg/day); LOEL = Lowest Observable Effect Level (mg/kg/day) = 3; UF = Uncertainty Factors (unitless); H = intrahuman variability accounts for variation in sensitivity among the human population =10; A = animal to human extrapolation =10; S = extrapolation from subchronic exposure to chronic exposure = 10; L = extrapolation from a LOEL to a NOEL = 10; D = insufficiency in the toxicological database = 3; MF = Modifying Factor (unitless) = 3 A modifying factor of 3 was used because of the following characteristics of C8: Long half-life in humans (approximately 1 -3 .5 years); Potential for bioaccumulation; Potential for biopersistence; Unusual physical properties such as solubility and partition coefficient. Therefore, the PRfDo equals 3 x 10E-5. 000301 WVDEP 12497 Calculation of the Preliminary Screening Level for C8 in Water: The PSL of 1 pg/L or ppb was calculated using a Hazard Quotient of 1 and the following equation and default parameters: GW = (PRfDo) (BWa) (CF) (IRWa) where: GW = concentration in Groundwater (pg/L); PRfDo = Provisional Oral Reference Dose (mg/kg/day) = 3 x 10E-5; BWa = adult body weight (kg) = 70; CF = conversion factor (from mg to pg) = 1000; IRWa = Ingestion Rate of Water for an adult (L/day) =2. Development of Provision Inhalation Reference Concentration: No monkey inhalation exposure studies have been conducted for PFOA. However, two two-week (6 hr/day; five days/week) inhalation exposure studies were conducted in rats by DuPont (1994). In the first study, a LOAEL of 11 mg/m3was found based on decreased body weight and hepatic injury. In the second study, a NOAEL of 1 mg/m3was determined. This NOAEL agreed with a NOAEL of 1 mg/m3 found by Staples et al. (1984) in female rats during a developmental toxicity study of PFOA. Inhalation reference doses were calculated for the NOAEL and the LOAEL as described below. Based on the LOAEL: Conversion from intermittent exposure to continuous exposure: LOAEL = E x D (h/24h) x W (days/7 days) Where: LOAEL = 11 mg/m3; E = exposure level in mg/m3; D = hours of exposure (6); W = days of exposure (5); Thus the continuous exposure LOAELc = 1.95 mg/m3; PRfCi = LOAELc (UFH) (UFA) (UFS) (UFL) (MF) 000392 WVDEP 12498 where: PRfCi = Provisional Inhalation Reference Concentration (mg/m3); LOAELc = Lowest Observable Effect Level (mg/m3) =11; UF = Uncertainty Factors (unitless); H = intrahuman variability accounts for variation in sensitivity among the human population =10; A = animal to human extrapolation = 10; S = extrapolation from subchronic exposure to chronic exposure = 10; L = extrapolation from a LOEL to a NOEL = 10; D = insufficiency in the toxicological database = 3; iMF = Modifying Factor (unitless) = 3 A modifying factor of 3 was used because of the following characteristics of C8: Long half-life in humans (approximately 1 - 3.5 years); Potential for bioaccumulation; Potential for biopersistence; Unusual physical properties such as solubility and partition coefficient. Therefore, the PRfCi equals 0.022pg/m3based on the LOAEL of 11 mg/m3. Based on the NOAEL: Conversion from intermittent exposure to continuous exposure: NOAEL = E x D (h/24h) x W (days/7 days) Where: NOAEL = 1 mg/m3; E = exposure level in mg/m3; D = hours of exposure (6); W = days of exposure (5); Thus the continuous exposure NOAELc = 0.18 mg/m3; PRfCi = NOAELc (UFH) (UFA) (UFS) (UFL) (MF) where: PRfCi = Provisional Inhalation Reference Concentration (mg/m3); NOAELc = No Observable Effect Level (mg/m3) = 1; UF = Uncertainty Factors (unitless); H = intrahuman variability accounts for variation in sensitivity among the human population =10; A = animal to human extrapolation = 10; S = extrapolation from subchronic exposure to chronic exposure = 10; D = insufficiency in the toxicological database = 3; 000303 WVDEP 12499 MF = Modifying Factor (unitless) = 3 A modifying factor of 3 was used because of the following characteristics of C8: Long half-life in humans (approximately 1- 3.5 years); Potential for bioaccumulation; Potential for biopersistence; Unusual physical properties such as solubility and partition coefficient. Therefore, the PRfCi equals 0.02pg/m3based on the NOAEL of 1 mg/m3. The PRfCi estimated using the NOAEL and the LOAEL are approximately equal. 0003*4 WVDEP 12500 References: Butenhoff, J.L. et al. 2001. Toxicity of ammonium perfluorooctanoate (APFO) in cynomolgus monkeys after twenty-six weeks of oral dosing (in preparation). DuPont Haskell Laboratory 1994 update. Toxicology review of C8. Gilliland, F. 1992. Fluorochemicals and Human Health: Studies in an Occupational Cohort. Doctoral thesis, Division of Environmental and Occupational Health, University of Minnesota. Gilliland, F.D. and Mandel, J.S. 1993. Mortality among employees of a perfluorooctanoic acid production plant. JOM 35(9):950-954. Gilliland, F.D. and Mandel, J.S. 1996. Serum perfluorooctanoic acid and hepatic enzymes, lipoproteins, and cholesterol: A study of occupational exposed men. Am. J. Ind. Med 29:560-568. Goldenthal, E.I. 1978a. Ninety Day Subacute Rat Toxicity Study. Final Report. Prepared for 3M, St. Paul, Minnesota, by International Research and Development Corporation, St. Paul, Minnesota, November 6, 1978. Goldenthal, E.I. 1978b. Ninety Day Subacute Rhesus Monkey Toxicity Study. Final Report. Prepared for 3M, St. Paul, Minnesota, by International Research and Development Corporation, St. Paul, Minnesota, November 10, 1978. 3M. 1987. Two-Year Oral (Diet) Toxicity and Carcinogenicity Study of Fluorochemical FC-143 (Perfluorooctanane Ammonium Carboxylate) in Rats. Final Report. Vol. 1-4, 3M/RIKER Exp. No. 0281CR0012; 8EHQ-1087-0394, October 16. Olsen, GW; Gilliland, FD; Burlew, MM; Burris, JM; Mandel, JS; Mandel, JH. 1998a. An epidemiologic investigation of reproductive hormones in men with occupational exposure to perfluorooctanoic acid. JOEM 40(7):614-622. Olsen, GW; Burris, JM; Burlew, MM; Mandel, JH. 1998b. An Epidemiologic Investigation of Plasma Cholecystokinin and Hepatic Function in Perfluorooctanoic Acid Production Workers. Final Report. 3M Company. Palazzolo, M.J. 1993. Thirteen -Week Dietary Toxicity Study with T-5180, Ammonium Perfluorooctanoate (CAS No. 3825-26-1) in Male Rats. Final Report. Laboratory Project Indentification HWI 6329-100. Hazleton Wisconsin, Inc. Staples, R.E., Burgess, B.A., and Kems, W.D. 1984. The Embryo-Fetal Toxicity and Teratogenic Potential of Ammonium Perfluorooate (APFO) in the Rat. Fund. Appl. Tox. 4, 429-440. 000395 WVDEP 12501 000306 M - UNITED STATES ENVIRONMENTAL PROTECTION AGENCY W A SHING TO N . D.C. 20460 IIA7 SEP 2 7 2002 OFFICE OF PREVENTION PESTICIDES AND TOXIC SUBSTANCES MEMORANDUM SUBJECT: Revision of PFOA Hazard Assessment and Next Steps FROM: Charles M. Auer, D ire c to ^ ^ -^ * - ` n Office of Pollution Prevention and Toxics TO: Oscar Hernandez, Director Risk Assessment Division Mary Ellen Weber, Director Economics, Exposure, and Technology Division Ward Penberthy, Acting Director Chemical Control Division r-o CD I CO 3a* .m rv> CO As part of the effort by the Office of Pollution Prevention and Toxics (OPPT) to understand health and environmental issues presented by fluorochemicals in the wake of unexpected toxicological and bioaccumulation discoveries with respect to perfluorooctyl sulfonates (PFOS), OPPT has been investigating perfluorooctanoic acid and its salts (PFOA). OPPT released a preliminary Draft Hazard Assessment o fPerfluorooctanoic Acid and Its Salts, dated February 20, 2002, on March 28,2002, and issued a minor correction to that document on April 15, 2002. That draft assessment indicated potential systemic toxicity and carcinogenicity, and observed that blood monitoring data suggested widespread exposure to the general population, albeit at low levels. It also noted, however, that additional toxicity studies were underway on other endpoints and that further data would be available within a matter of months. The Agency has since received considerable additional data. The additional toxicology data submitted to the Agency suggest a potential for reproductive/developmental toxicity, and additional blood sample analysis data indicate low level exposures to the general population that are unexplained at this time. Stephen Johnson, Assistant Administrator of the Office of Prevention, Pesticides, and Toxic Substances (OPPTS), met with representatives from the manufacturers and users of PFOA and related chemicals on August 13,2002. He requested continued discussion with ,gPNTAIN NO OP'In te rn e t A d d re s s (U R L ) h ttp ://w w w .e p a .j RecyclecVRacydable Printed with Vegetable Oil Based Inka on Recycled Paper (Minimum 50% Poetconsumer content) I 000307 2 manufacturers and users o f PFOA and related chemicals to further investigate these issues, and raised the importance of and need for communicating with the public. Following that meeting, OPPTS met with toxicologists from industry on August 30,2002, to discuss the recent study submissions and any additional anticipated work. OPPT also met by conference call with manufacturer representatives on September 12,2002 to explore existing exposure information and identify gaps in those data that may help to explain the presence of PFOA in the blood of the general population. Summaries of these meetings are being placed in the public administrative record for this investigation, AR-226: PFOS, PFAS, PFOA, Telomers, and Related Chemicals. An interim revised hazard assessment updating the original D raft Hazard Assessment to incorporate OPPTs reviews of these data has been prepared. As soon as this document completes internal review procedures, it should be placed in AR-226. Please proceed to finalize this interim revised hazard assessment within the next four to six weeks, at which time we will place the document in the public file. The reproductive/developmental toxicity data, the carcinogenicity data, and the blood monitoring data reviewed in the interim revised hazard assessment raise the possibility that PFOA might meet the criteria for action under section 4(f) ofthe Toxic Substances Control Act. The Agency established a process in 1991 for determining whether the TSCA 4(f) criteria are met, and published that process in a Federal Register notice concerning refractory ceramic fibers (RCF) (56 FR 58693; November 21,1991). With this memo, I am requesting that you now initiate a priority review, as described in that notice, to determine the significance o f the risks presented by PFOA and its salts. This priority review should begin while you proceed with the finalization of the interim revised hazard assessment. It is my understanding that you have also initiated a request with the Science Advisory Board (SAB) for a peer review ofdie preliminary risk assessment focused on developmental/reproductive toxicity that will be developed based on this priority review. It is my expectation that the hazard assessment priority review will be completed in the next four to six weeks. Please be prepared to discuss these issues when we meet with the Assistant Administrator on next steps cc: S. Johnson S. Hazen M. Schneider Administrative Record AR-226; PFOS, PFAS, PFOA, Telomers, and Related Chemicals 00030S fir M tLSi _ H J i e f Oscar Hemandaz 09/27/02 02:32 PM To: Vanessa Vu/DC/USEPA/US@EPA cc: Robert Flaak/DC/USEPA/US@EPA, Charles Auer/DC/USEPA/US@ EPA Margaret Schneider/DC/USEPA/US@EPA, Seed.Jennifer@EPAMAIL.EPA.GOV@EPA, Barbara Leczynski/DC/USEPA/US@EPA, Priscilla Flattery, Robert Per1is/DC/USEPA/US@EPA Subject SAB request Vanessa, attached is a request fo r an SAB review of a prelim inary risk assessm ent of Perfluorooctanoic acid (P F O A ). W e will work with SAB staff to assem ble the form al submission. Thank you for your help. rvj 'r'Oo nCD X o oCO CONTAIN NO CBl 000303 / Science Advisory Board Proposed Project , i^ ( 1. Project Title / Subject: Preliminary Risk Assessment of Perfluorooctanoic Acid 2. Requesting Organization /Office: Office of Pollution Prevention and Toxics (OPPT) 3. Requesting Official: Oscar Hernandez, Director, Risk Assessment Division, OPPT 4. General Ranking: High within the Agency; High within OPPTS; High within OPPT 5. Applicable Goal, Objective, and Subobjective: Goal 4,4.3.2, 6. Legal Obligation / Directive (if any): Toxic Substances Control Act (TSCA) 7. Endorsement by other offices: Not Solicited 8. Program Contact: Jennifer Seed, OPPT/RAD (7403M), 202-564-7634, US EPA, 1200 Pennsylvania Ave., NW, Washington DC, 20460 9. Background: As part of the effort by the Office of Pollution Prevention and Toxics (OPPT) to understand health and environmental issues presented by fluorochemicals in the wake of unexpected toxicological and bioaccumulation discoveries with respect to periluorooctane sulfonates (PFOS), OPPT has been investigating perfluorooctanoic acid and its salts (PFOA). OPPT released a preliminary Draft HazardAssessment o fPerfluorooctanoic Acid and Its Salts, dated February 20,2002, on March 28, 2002, and issued a minor correction to that document on April 15, 2002. That draft assessment indicated potential systemic toxicity and carcinogenicity, and observed that blood monitoring data suggested widespread exposure to the general population, albeit at low levels. It also noted, however, that additional toxicity studies were underway on other endpoints and that further data would be available within a matter of months. Numerous studies conducted by industry on PFOA and its salts have included toxicological studies in rodents and monkeys, biomonitoring studies of workers and the general US population, epidemiology studies, and biomonitoring studies of the wildlife in the US. These studies have shown that PFOA is also highly persistent in the environment and does not hydrolyze, photolyze or biodegrade under environmental conditions. PFOA is also highly persistent in humans, is not metabolized and has a half life of several years. The biomonitoring studies have shown that it is present in the general US population and the wildlife. At present, the sources and pathways of exposure are unknown. Toxicological studies in rodents and primates have shown that exposure to PFOA can result in a variety of effects including developmental/reproductive toxicity, liver toxicity and cancer. Given that PFOA is present in the general US population and its toxicological profile, OPPT determined the need to conduct a risk assessment. This preliminary risk assessment places emphasis on the developmental/reproductive endpoints. The tumors (liver, pancreas and Leydig cell) observed in the cancer bioassays are thought to be directly or indirectly related to ooon.to the activation of PPARa. The relevance of this mode of action to humans is currently under scientific debate. The ILSI Risk Science Institute, under a cooperative agreement with EPA, has formed several workgroups to assess the state of the science which will be presented at a public workshop. The risk assessment of PFOA will be extended to include the systemic toxicity and cancer data once there is resolution of this issue. 10. Why the SAB Should Review this Project: This preliminary risk assessment utilized a margin of exposure (MOE) approach. Since there is no information available on the source or pathway(s) of human exposure, the preliminary risk assessment of PFOA utilized serum levels which were available for the general human population and were available for the rat toxicology studies. Since this preliminary risk assessment is of high priority with respect to Agency relevance, SAB review and comment is being sought. A scientifically sound assessment would play an important role in the analysis of options by the program offices. 11. Type of SAB Activity Requested: Peer review. 12. Tentative Charge: Review of the preliminary risk assessment with special emphasis on (a) the use of serum data as a measure of internal dose; (b) the use of serum levels from parental animals as a surrogate for levels in offspring; (c) the use of the data to provide a range of possible MOEs; (d) other assumptions that were made. A more detailed charge will be negotiated with SAB at a later date. 13. Tentative Schedule and Committee: Winter, 2003. Environmental Health Committee. 14. Principal Interested and Affected Parties: Fluoropolymer Manufacturers Group, Telomers Research Program, State of West Virginia, Region 3 15. Budget: The development of this preliminary risk assessment and the background hazard assessment was done by OPPT scientists during FY01 - FY02. An estimated 3 FTEs were required. No intramural or extramural funds were used. 16. Past Peer Reviews: None 17. Quality Management / Quality Assurance: This preliminary assessment has been through the following components of the Office's quality system: internal branch review, review through the management hierarchy, including Division and Office review. 18. Preparer: Jennifer Seed, OPPT/RAD, 202-564-7634 Date: September 23,2002 000311 3