MTLRS435.xml Guide to the Montana Department of Environmental Quality, Air Resources Management Bureau records 1965-2001 Montana Department of Environmental Quality, Air Resources Management Bureau Records Finding aid prepared by Rachel Lilley; Updated by Lindsey Mick Funding for encoding this finding aid was provided through a grant awarded by the National Historical Publications and Records Commission (NHPRC) Montana Historical Society 2012; 2024 Finding aid encoded by Matt Kruse; Updated by Lindsey Mick2012; 2024 Finding aid written in English. Finding aid based on DACS ( Describing Archives: A Content Standard, 2nd Edition). Montana Historical Society Library and Archives
225 North Roberts PO Box 201201 Helena MT 59620-1201 406-444-2681 mthslibrary@mt.gov
RS 435_RS 494 Montana. Department of Environmental Quality Montana Department of Environmental Quality, Air Resources Management Bureau records 1965-2001 19.4 linear feet This collection is a sub-subgroup (Bureau) of the Montana Department of Environmental Quality records. The Air Quality Bureau (formerly named Air Resources Management Bureau) currently operates within the Air, Energy, and Mining Division. Please see the primary finding aid for more Montana Department of Environmental Quality records. These records (1965-2001) include correspondence, case files, hearing transcripts, and subject files. 43:1-5 English

In 1971, the State Department of Health became the Department of Health and Environmental Sciences (DHES) with the passage of Governor Anderson’s Executive Reorganization Order 9-71. The Environmental Sciences Division remained part of DHES from that date until 1990, during which time they were responsible for monitoring air quality and water quality, solid waste management, administering the Subdivision Bureau, ensuring food and consumer safety, and occupational health. In 1991, though still a part of the Department of Health and Environmental Sciences, the role of the Environmental Sciences Division was considerably expanded to include: Natural Resource Damage Assessment, a Petroleum Tank Release Compensation Board, a Superfund Section, and an Underground Storage Tanks Section. The Environmental Sciences Division became its own separate department, renamed the Department of Environmental Quality, in 1995, and was comprised of the following divisions: Director’s Office, Air Quality, Centralized Services, Energy, Environmental Remediation, Reclamation, Waste Management, and Water Quality. Currently, the Montana Department of Environmental Quality (DEQ) is comprised of seven divisions: the Director’s Office, Enforcement, Financial Services, Information Technology, Permitting and Compliance, Planning, Prevention, and Assistance, and Remediation.

The functions of the Air Resources Management Bureau were originally covered by the Air Quality Bureau under the umbrella of the Environmental Services Division within DHES. After the creation of the DEQ in 1995, the Air Quality Bureau became the Air and Waste Management Bureau, functioning under the Permitting and Compliance Division and comprised of the Air Permitting and Air Compliance offices. The Air and Waste Management Bureau became the Air Resources Management Bureau (ARMB) in the early 2000s.

The ARMB remained under the umbrella of the Permitting and Compliance Division (defunct) until sometime prior to 2024. The ARMB regulated air emissions through permitting and compliance activities. This mandate included: issuing air quality pre-construction and operating permits; inspecting and providing compliance assistance for air emission sources; issuing permits for open burning activities; and coordinating operation of the Montana Smoke Management Program with the major open burning entities. As of 2024, the Air Resources Management Bureau has been replaced with the Air Quality Bureau, which operates within the Air, Energy, and Mining Division of DEQ.

This collection is composed of correspondence, case files, hearing transcripts, and subject files. The correspondence series is comprised mostly of correspondence between the AQB/ARMB and the Environmental Protection Agency, and correspondence in regards to State Implementation Plans to deal with air pollution in various cities, including Anaconda, Butte, East Helena, Libby, Missoula, and Whitefish. The Case Files series is alphabetized by company, and deals primarily with permitting and compliance. The Hearings series is comprised of transcripts of hearings for air quality cases between 1977 and 2000. Hearings revolve primarily around the adoption of air quality rules. The highlights of the Subject Files series are folders dealing with the EPA’s Clean Air Act of 1990, citations and complaints for emissions violations, and air quality quarterly contract reports by county (not all counties are represented).

Arrangement is by series.

Collection open for research.

Researchers must use collection in accordance with the policies of the Montana Historical Society. The Society does not necessarily hold copyright to all materials in the collection. In some cases permission for use may require additional authorization from the copyright owners. For more information contact an archivist.

In 2024, the various collections of the Montana Department of Environmental Quality were integrated under one collection identifier, RS 494, in order to help facilitate access, reduce redundancy in the MTHS catalog, and to follow best archival practices.

Collections from Montana Department of Environmental Quality's various Divisions and Bureaus that were previously treated as separate entities are now integrated into this collection, RS 494. Rather than reprocessing over 150 linear feet of DEQ materials, MTHS staff decided to keep the past arrangement of those collections/finding aids, and provide access to them via links through the central finding aid. This decision has allowed the MTHS archival staff to maintain intellectual control over the collection, while removing the need to reprocess it. It also keeps State Agency finding aids at manageable sizes. Please read the scope and content note carefully to determine if this subgroup/sub-subgroup pertains to your research needs.

Item description and date. Collection Title. Collection Number. Box and Folder numbers. Montana Historical Society Library & Archives, Helena, Montana.

Acquisition information available upon request

This collection is indexed under the following headings in the Montana Historical Society Archives catalog. Researchers desiring materials about related topics, persons, or places should search under these terms.

Air Quality – Montana Air quality – Standards – Montana Environmental protection – History Montana Environmental Activism Detailed Description of the Collection Correspondence 1 / 1-16 Air Quality Bureau (AQB), Billings Sulfur Dioxide (SO2) 1985-1994 2 / 1-3 AQB, Contracts – General 1991-1993 2 / 4 AQB, Contracts – Policies and Procedures 1989-1992 2 / 5 AQB, Contracts – Butte/Silver Bow 1996 2 / 6 AQB, Contracts – Lewis and Clark County 1995 2 / 7 AQB, Contracts – Lincoln County 1991-1992 2 / 8 AQB, Contracts – Cascade County 1996 2 / 9 AQB, Contracts –Flathead County 1995-1996 2 / 10 AQB, Contracts – Missoula County FY 1995 2 / 11 AQB, Contracts – Ravalli County 1994 2 / 12 AQB, Contracts – Yellowstone County 1995 2 / 13 AQB, Poplar River Study 1988-1994 2 / 14 AQB, Miscellaneous 1983-1991 2 / 15 AQB, “Transportation Conformity” 1991-1993 2 / 16-17 AQB, Tribal Assistance – All tribes 1983-1984 2 / 18 AQB, Tribal Assistance – Crow Reservation 1981-1991 2 / 19 AQB, Tribal Assistance – Flathead Reservation 1981-1992 2 / 20 AQB, Tribal Assistance – Fort Belknap Reservation 1982-1990 2 / 21 AQB, Tribal Assistance – Fort Peck Reservation 1989-1992 2 / 22 AQB, Tribal Assistance – N. Cheyenne Reservation 1983-1984 2 / 23 Environmental Protection Agency (EPA), Air and Hazardous Materials 1974-1978 2 / 24 EPA, Air Quality Plan and Standards 1976-1995 2 / 25 EPA, Air Quality Maintenance Areas 1974-1978 2 / 26 EPA, Applicability Determination Index (ADI) 1993 2 / 27 EPA, “BOA Projects” 1975 2 / 28 EPA, CORE Program 1988 2 / 29 EPA, Emissions Trading 1982-1986 2 / 30 EPA, Enforcement Division 1972-1979 3 / 1 EPA, “Enforcement/Significant Violators” 1988-1989 3 / 2 EPA, Federal Facilities Compliance 1973-1976 3 / 3 EPA, Fuels 1993-1994 3 / 4 EPA, Health Risk Assessments 1991-1992 3 / 5 EPA, Implementation Plan 1971-1977 3 / 6 EPA, “Indirect Sources” (regulations) 1973-1975 3 / 7 EPA, Inspection Targeting Programs 1988-1989 3 / 8-12 EPA, Miscellaneous 1971-1995 3 / 13 EPA, Montana Emissions Inventory 1971-1976 3 / 14-15 EPA, Montana Operations Office 1978-1992 3 / 16 EPA, National Acid Precipitation Assessment Program (NAPAP) 1981-1989 3 / 17 EPA, National Air Toxics Information Clearing- house (NATICH) undated 3 / 18 EPA, National Emission Standards for Hazardous Air Pollutants (NESHAPS) 1976-1984 4 / 1 EPA, NESHAPS (Asbestos) 1985-1992 4 / 2-5 EPA, New Source Performance Standards (NSPS) 1971-1995 4 / 6 EPA, Pollution Prevention Program 1992 4 / 7 EPA, Prevention of Significant Deterioration 1967-1982 4 / 8 EPA, Quality Assurance Branch 1978-1979 4 / 9 EPA, Standards 1971-1977 4 / 10-11 EPA, State-EPA Agreements (SEAs) and Reports 1988-1993 4 / 12 EPA, Superfund 1984-1987 4 / 13 EPA, Surveillance and Analysis Division 1975-1982 4 / 14 EPA, Toxic Substances Control Act 1977-1978 4 / 15 EPA, Transportation Planning 109 (j) 1975-1977 4 / 16 EPA, National Air Audit System (NAAS) 1986-1989 4 / 17 EPA, Superfund (Toxic Chemical Release) 1989-1990 4 / 18 EPA, Volatile Organic Compounds 1989-1990 4 / 19 EPA, “Oversight by Region VIII” 1988-1989 4 / 20 EPA, “Visibility” 1979-1995 5 / 1-16 State Implementation Plan (SIP), General (includes Sulfur Dioxide and revisions) 1978-1994 6 / 1 SIP, General 1994 6 / 2 SIP, Anaconda SO2 1979-1982 6 / 3 SIP, Billings 1978-1989 6 / 4-7 SIP, Butte 1978-1993 6 / 8-9 SIP, Columbia Falls and Kalispell PM-10 1988-1992 6 / 10-12 SIP, East Helena Lead 1978-1989 7 / 1-2 SIP, East Helena Lead 1989-1996 7 / 3-5 SIP, East Helena PM-10 1988-1991 7 / 6-8 SIP, Great Falls 1981-1992 7 / 9 SIP, Kalispell 1993 7 / 10-14 SIP, Kalispell PM-10 1986-1993 7 / 15-19 SIP, Libby PM-10 1984-1990 8 / 1-2 SIP, Libby PM-10 1991-1992 8 / 3-5 SIP, Missoula PM-10 1988-1993 8 / 6-10 SIP, Missoula County 1978-1991 8 / 11 SIP, Thompson Falls PM-10 1990-1992 8 / 12-13 SIP, Whitefish PM1-10 1992-1993 9 / 1 Air Quality, Montana Air Pollution Grant 1995-1996 9 / 2 Air Toxics, Emissions Inventories and Monitoring Air Toxics, Emissions Inventories and Monitoring 1986-1994 9 / 3 Air Toxics, Remediation and 33 / 50 1990-1992 9 / 4 Alberta, Province of 1986 9 / 5 American Society for Testing and Materials 1984-1986 9 / 6 Butte/Silver Bow Government 1982-1983 9 / 7 Complaints (re: air quality) 1991 9 / 8 County Air Pollution Programs 1978-1992 9 / 9 Department of Agriculture, Forest Service 1970-1991 9 / 10 DHES, Director’s Office 1994-1995 9 / 11 DHES Reorganization 1994-1995 9 / 12 Department of the Interior, Bureau of Land Management 1975-1987 9 / 13 Flathead County Air Pollution Control Program 1992 9 / 14 Gallatin County Air Pollution Control 1985-1993 9 / 15-17 Governor’s Office (includes Coal Task Force, and Reports) 1969-1984 9 / 18 “Korean Dry Cleaning Rule” (dry cleaning Emissions rule translated into Korean) 1993 9 / 19-21 Legislation 1985-1993 10 / 1 Legislation 1995-1997 10 / 2 Lewis and Clark County 1983-1996 10 / 3-4 Missoula County Air Pollution Control 1986-1995 10 / 5 Montana Coal Council 1978-1987 10 / 6 Montana, Department of State Lands 1980-1993 10 / 7-8 Montana, Environmental Quality Council 1985-1996 10 / 9 Montana Environmental Policy Act 1971-1994 10 / 10 “Montana, State of” 1978-1992 10 / 11 North Dakota regulations 1976-1994 10 / 12 Transportation Conformity Work Group 1994 10 / 13 Tribal Air Quality Programs 1979-1992 10 / 14 Tribal Implementation Plan (TIP), N. Cheyenne Reservation 1991 Case Files 11 / 1 Allied Paving Corporation Permits 1976 11 / 2 Alpine Asphalt and Building Permits 1984 11 / 3 American Asphalt Permits 1973-1984 11 / 4 American Chemet Corporation 1973-1981 11 / 5 American Stud Company 1976, 1980 11 / 6 American Timber 1970 11 / 7 ASARCO – Black Pine & East Helena 1973-1981 11 / 8 Ash Grove Cement Company 1969-1977 11 / 9 Associated Asphalt Permits 1969-1972 11 / 10 B and N Construction Permits 1979 11 / 11 Barton Construction 1969 11 / 12-13 Bartrusch Construction Permits 1969-1999 11 / 14 Big Sky Construction 1973 11 / 15 Big Sky Ready Mix 1973 11 / 16 Black Eagle Paving 1969-1971 11 / 17 Blahnik Construction 1983 11 / 18 Bonneville Power 1983 11 / 19 Border States Paving 1982 11 / 20 Bozeman Sand and Gravel 1984 11 / 21 Brasel and Sims Construction 1973 11 / 22 Butte Silver Bow Asphalt 1981 11 / 23 Butte Silver Bow Asphalt 1983 11 / 24 Buttrey Foods (Billings – Wolf Point) 1970 11 / 25 Centennial Asphalt 1981 11 / 26 Central Paving 1970-1971 11 / 27 Century Construction 1981 11 / 28 Century Paving 1979-1984 11 / 29 CHS Inc., Laurel refinery 1968, 1977 11 / 30 Clark Brothers Construction 1979-1984 11 / 31 Columbia Falls Aluminum Company 1976-1982 11 / 32 Columbia Falls Aluminum Company 1983 11 / 33 Conoco Phillips Company, Billings refinery 1970-1982 11 / 34 Construction Supply Inc. 1974 11 / 35 COP Construction 1980 11 / 36 Cyprus Industrial Minerals Company (Luzenac International) 1970 11 / 37 Decker Coal Company 1980-1981 11 / 38 Deer Lodge County 1970-1984 11 / 39 Devon Energy Production 1981 11 / 40 Diamond National Corp 1970 11 / 41 Doeden Construction 1971 11 / 42 Dugdale Construction 1971 11 / 43 Duinick Brothers and Gilchrist 1979-1984 11 / 44 Earth Builders 1975-1979 11 / 45 Echart Construction 1984 11 / 46 Empire Sand and Gravel 1979-1984 11 / 47 Ennis Sand and Gravel 1978 11 / 48-50 Exxon Mobil, Billings refinery 1971-1984 11 / 51 F and S Construction 1969 11 / 52 F.H. Stoltze Land and Lumber Company 1971 11 / 53 F.L. Flynn and Company 1972 11 / 54 Faust Construction 1983 11 / 55 Felton Construction 1980 11 / 56 Fergus County 1976 11 / 57 Figgins Sand and Gravel 1983 11 / 58 Fisher Sand and Gravel 1974-1994 11 / 59 Flathead County 1970-1971 12 / 1 Francis Muggli 1972-1982 12 / 2 Francis Muggli 1971-1985 12 / 3 Francis Tindall Construction 1970-1979 12 / 4 Gallatin County Road Development 1983-1984 12 / 5 Genesis Inc., Troy mine 1979-1982 12 / 6 Gilman Excavating 1978 12 / 7 Gilman Excavating 1971-1985 12 / 8 Gladstone Crushing and Construction 1982 12 / 9 Gladstone Cushing and Construction 1983 12 / 10 Golden Sunlight Mines (Plasar Annex Inc.) 1982 12 / 11 Grant Construction Co. 1972 12 / 12 Graymont Western US (Continental Lime) 1980-1982 12 / 13 Graymont Western US Inc. 1983 12 / 14 Gypsy Highview Gathering 1982 12 / 15 Helena Sand and Gravel 1973 12 / 16 Helena Sand and Gravel 1975 12 / 17 Henzel – Phelps Joint Venture 1971 12 / 18 Hexion Specialty Chemical (Border Chemical) 1970 12 / 19 Hilde – Maronick Joint Venture 1974-1976 12 / 20 Hilde Construction 1969-1974 12 / 21 Hilde Construction 1975-1977 12 / 22 Hilde Construction 1978-1980 12 / 23 Hilde Construction 1981-1982 12 / 24 Hilde Construction 1984-1985 12 / 25 Hilmar Asphalt 1973-1976 12 / 26 Holland Construction 1968-1971 12 / 27 Holnam Inc. (formerly Ideal Basic Industries) 1970-1983 12 / 28 Inland Asphalt Co. 1971-1984 12 / 29 J – B Company 1977 12 / 30 James W. Zion 1971-1977 12 / 31 Joe Mayo and Sons, Inc 1975-1976 12 / 32 Kennaday Paving 1973 12 / 33 King of Kings Mining 1983 12 / 34 Knife River Corp. 1985 12 / 35 Konitz Contracting 1979-1981 12 / 36 Konitz Contracting 1979-1984 12 / 37 Konitz Contracting 1985 12 / 38 Kraling and Nelson Construction 1972 12 / 39 Kraus Construction 1975-1980 12 / 40 L.S. Jensen Construction 1982-1987 12 / 41 L.W. Vail Company 1969-1972 12 / 42 Lewis Construction 1970 12 / 43 Lindteigen Construction 1969 12 / 44 Lindteigen Construction 1970 12 / 45 Long Construction 1973 12 / 46 Long Construction 1978 12 / 47 Lundy Center 1969-1970 12 / 48 Luzenac America 1983 12 / 49 M and M Ready Mix 1971 12 / 50 Malmstrom Air Force Base 1981 12 / 51 MarKovich Construction 1969-1984 12 / 52 MarKovich Paving 1979-1980 12 / 53 Marvin Rehbein Construction 1979-1980 12 / 54 Marvin Rehbein Construction 1984-1985 12A / 1 McAtee and Heathe 1969-1974 12A / 2 McIntyre Construction 1971-1984 12A / 3 McIntyre Construction 1979-1984 12A / 4 McIntyre Construction 1979-1984 12A / 5 Meyer Construction 1974-1977 12A / 6 Meyer Construction 1978-1981 12A / 7 Montana Power Company 1976-1979 12A / 8 Montana Refining Company 1977-1982 12A / 9 Montana-Dakota Utilities 1971, 1975 12A / 10 Montana-Dakota Utilities, Glendive 1977, 1981 12A / 11 Mortensen Construction 1977-1979 12A / 12 Mountain States Energy 1980-1982 12A / 13 Mountain States Energy 1983 12A / 14 Mountain States Energy 1984 12A / 15 Newman Construction 1981 12A / 16 NFT Inc. and Association (Nilson Smith Construction) 1969-1974 12A / 17 Nilson – Birch 1970 12A / 18 Northern Improvement 1969-1985 12A / 19 Northwest Engineering Co. 1969 12A / 20 P.M. Berry Co. 1957 12A / 21 Pack and Company (NUPAC) 1977 12A / 22 Pack Concrete 1977 12A / 23 Peter Kiewit Sons Co. 1968-1980 12A / 24 Peter Kiewit Sons Co. 1971-1978 12A / 25 Peter Kiewit Sons Co. 1982-1983 12A / 26 Peter Kiewit Sons Co. 1983 12A / 27 Plum Creek Manufacturing, Fortine 1969-1979 12A / 28 Polk County Refuse District 1981 12A / 29 R.A. Heintz Co. 1971 12A / 30 Ranck Oil Company 1980 12A / 31 Ranck Oil Company 1983 12A / 32 Reeves Inc. 1979-1980 12A / 33 Richardson Construction 1968-1972 12A / 34 Robert Thornburg, Contractor 1982 12A / 35 Robert Tindall 1971-1979 12A / 36 Robert Tindall 1973-1975 12A / 37 Rock Inc 1975-1976 12A / 38 Rocky Mountain Biomass 1982 12A / 39 Roseburg Forest Products, Missoula Particleboard 1976-1979 12A / 40 R-Y Timber, Inc. 1974 12A / 41 S. Birch Inc 1969-1970 12A / 42 Schmidt Super Value Grocery 1975 12A / 43 Sidney Sugars 1984 12A / 44 Smurfit-Stone Container Enterprises 1970-1980 12A / 45 Spring Creek Coal Company 1979 12A / 46 State Bank Trust, Dillon 1974 12A / 47 Stimson Lumber Company 1972-1975 12A / 48 STS Gravel 1984 12A / 49 Swan and Sons Construction 1985 12A / 50 T-Bend Construction (was Hi-Line Asphalt) 1983 12B / 1 Tongue River Lumber 1973-1977 12B / 2 Tri-State Construction 1984 12B / 3 United Materials of Great Falls (was Montana Sand and Gravel) 1970 12B / 4 United Materials of Great Falls (was Northern Materials Co.) 1970 12B / 5 United States Antimony Corp. 1970 12B / 6 United States National Park Service 1974 12B / 7 United States National Park Service 1981 12B / 8 US Department of Health and Human Services, National Institute of Health (Rocky Mountain Labs) 1975 12B / 9 Waleswood Inc. 1973 12B / 10 Western Energy Co. 1984 12B / 11 Western Energy Company 1978-1982 12B / 12 Western Gas Resources 1982 12B / 13 Western Materials 1977-1982 12B / 14 Western Sugar Cooperative 1968-1982 12B / 15 Western Vermiculite Company 1978-1980 12B / 16 Westmoreland Resources 1973-1980 12B / 17 Westmoreland Savage Mine 1982 12B / 18 Westmoreland Savage Mine 1984 12B / 19 Wheatland County 1973-1979 12B / 20 William Collins, Inc. 1970-1972, 1978 12B / 21 Williston Basin Interstate Pipeline Company 1972-1981 Hearings 12B / 22-29 Transcripts (Anaconda, Air rules, Sulfur Dioxide) 1977-1980 13 / 1-12 Transcripts 1980-2000 Subject Files 13 / 13 Board of Health and Environmental Sciences, Miscellaneous 1967-1975 13 / 14 Environmental Protection Agency (EPA) 1996-2001 14 / 1 Air Quality Complaints list 1975-1994 14 / 2 Aronson Chicken Ranch (Rollins) 1975-1979 14 / 3 Asphalt Plants and Crushers 1988 14 / 4 Billings Regional Office 1975-1995 14 / 5 Broadus Airport, Environmental Assessment 1996 14 / 6 Clean Air Act of 1990 1987-1990 14 / 7 Clean Air Act Advisory Committee 1991-1994 14 / 8 EPA, Region VIII, Tall Stack Policy 1977 14 / 9 Rule Changes, Adopted 1984-1990 14 / 10-12 East Helena, Child Lead Study 1983-1990 14 / 13 Enforcement Program 1972-1976 14 / 14 EPA, Monthly Reports 1975-1977 14 / 15 EPA, Semi-annual Air Implementation Plan reports 1971-1974 14 / 16 “History of Air Pollution” 1969-1976 14 / 17 Inspection and Enforcement Program, Annual Report to EPA 1980-1985 14 / 18 Legislative Study Committee (Air Pollution Control) 1965 14 / 19-20 Open Burning Rule Changes 1975-1982 15 / 1 Air Permit Fees 1991-1994 15 / 2 Air Pollution Control Program, Anaconda Company report (re: concentrator tailings) 1972 15 / 3-6 AQB, Administrative Rules 1991-1996 15 / 7-8 AQB, Citations (re: emissions) 1987-1994 15 / 9-10 AQB, Complaints (re: emissions) 1992-1994 15 / 11-16 AQB, Contracts – Butte/Silver Bow through Lincoln County (quarterly reports) 1985-1996 16 / 1 AQB, Contracts – Yellowstone County (quarterly reports) 1991-1994 16 / 2 AQB, Fees 1973-1974 16 / 3 AQB, Hazardous/Medical Waste Incinerators 1991-1994 16 / 4 AQB, “Incinerators – Miscellaneous” 1968-1975 16 / 5 AQB, “Proposed Rules” 1975-1982 16 / 6 AQB, SIP – Annual Progress Reports undated 16 / 7 Air Quality Division (AQD), Contracts – Cascade County (quarterly reports) 1995-1996 16 / 8-12 AQD, Contracts – Lewis and Clark through Missoula County (quarterly reports) 1994-1996 16 / 13 BHES, Jay Huddleston and Anaconda Company 1971 16 / 14 Board of Health, Rules adopted 1986-1987 16 / 15 EPA, Acid Rain 1985-1986 16 / 16 EPA, Air Toxins 1992-1994 16 / 17 EPA, State – EPA Agreements (mid-year report) 1994 17 / 1-10 EPA, Clean Air Act – Title I-VI 1990-1998 17 / 11 EPA, Enforcement (Air) 1989-1994 17 / 12 EPA, “Part 70” (State Operating Permit Programs), Original and Revised 1992, 1994 17 / 13 EPA, “Part 70” – Revised 1995, 1997 17 / 14 EPA, “Part 70” – White Papers 1995 17 / 15 EPA, Permitting (Air) 1989-1994 17 / 16 EPA, Visible Emissions Inspection Procedures 1977 18 / 1 Fugitive Dust Policy 1976-1987 18 / 2 “Montana Oil and Gas Statistical Bulletin 1978-1980 18 / 3 Montana State Airshed Group, Complaints (re: Slash burning) 1991 18 / 4 Prevention of Significant Deterioration (PSD), Rule development 1970-1979 18 / 5 Rule 16-2.14(1), S1400 – S1440 (Permits, Incinerators, Wood Waste Burners, Particulates) 1978-1980 18 / 6 Rule 16-2.14(1), S1460 – Sxxxx (PSD) (PSD and Visible Air Contaminants) 1978-1982 18 / 7 Rule 16-2.14(1), S14082 and S14084 (NSPS, NESHAPS) 1977-1983 18 / 8 Volatile Organic Compound Control 1978-1979