Laws & Regulations
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NPDES Permit for Wesco Operating, Inc. – Maverick Springs in Wyoming
Under NPDES permit WY-0000469, Wesco Operating, Inc. - Maverick Springs is authorized to discharge from its wastewater treatment facility located in Fremont County, Wyoming to a tributary to Five Mile Creek.
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NPDES Permit for Wesco Operating, Inc. – Winkleman Dome Field in Wyoming
Under NPDES permit WY-0025232, Wesco Operating, Inc. is authorized to discharge from its Winkleman Dome Field wastewater treatment facility in Fremont County, Wyo. to an unnamed ephemeral tributary of Big Horn Draw, a tributary to the Little Wind River.
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National Primary Drinking Water Regulations
Table of the National Primary Drinking Water Regulations (NPDWRs or primary standards) that are legally enforceable standards that apply to public water systems.
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NPDES Permit for Southern Ute Indian Tribe Wastewater Treatment Plant in Colorado
Under NPDES permit number CO-0022853, the Southern Ute Indian Tribe is authorized to discharge from its wastewater treatment facility near Ignacio, Colorado, in La Plata County,
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Beryllium Rocket Motor Firing: National Emission Standards for Hazardous Air Pollutants (NESHAP)
Learn about this NESHAP for Beryllium Rocket Motor Firing, read the rule summary and find the rule history and code of federal regulation text
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Benzene Waste Operations: National Emission Standards for Hazardous Air Pollutants
Emissions standards for benzene waste and transfer operations. Includes rule history and federal register citations.
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Benzene Transfer Operations: National Emission Standards for Hazardous Air Pollutants (NESHAP)
learn about the NESHAP for benzene transfer operation by reading the rule summary and history, as well as visiting the code of federal regulations document
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Asphalt Processing and Asphalt Roofing Manufacturing: National Emission Standards for Hazardous Air Pollutants (NESHAP) for Area Sources
Learn about the NESHAP for asphalt processing and asphalt roofing manufacturing area sources by reading the rule summary, rule history, docket folder, and the code of federal regulation text
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Beryllium: National Emissions Standards for Hazardous Air Pollutants
Includes rule history for 40 CFR 61 Subpart C.
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Alternative Means of Emission Limitation for Leak Detection and Repair
This page consolidates EPA action on AMEL requests for LDAR.
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Clay Ceramics Manufacturing Area Sources: National Emission Standards for Hazardous Air Pollutants (NESHAP)
Learn about the NESHAP for clay ceramics manufacturing area sources by reading the rule history, the rule summary, the additional documents
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Chemical Preparations Industry: National Emission Standards for Hazardous Air Pollutants for Area Sources
National emissions standards for control of hazardous air pollutants (HAP) from the chemical preparations area source category. Includes rule history, Federal Registry citations, implementation information, and additional resources.
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Chromium Compounds: National Emission Standards for Hazardous Air Pollutants for Chemical Manufacturing Area Sources
This NESHAP applies to facilities using pressure or thermal treatment processes involving wood preservatives containing chromium, arsenic, dioxins, or methylene chloride
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Engine Test Cells/Stands: National Emission Standards for Hazardous Air Pollutants (NESHAP)
Learn about the MACT regulations for engine test cells and stands. Find the fact sheet, rule history, rule summary and rule text on this page.
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Glass Manufacturing Area Sources: National Emission Standards for Hazardous Air Pollutants (NESHAP)
learn about the NESHAP for glass manufacturing area sources by reading the rule summary, the rule history, the code of federal regulations text, the fact sheet and compliance information
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Ferroalloys Production Facilities: National Emission Standards for Hazardous Air Pollutants for Area Sources
Includes rule history, summary and Federal Register citations for 40 CFR 63 subpart YYYYYY.
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Hospital Ethylene Oxide Sterilizers: National Emission Standards for Hazardous Air Pollutants (NESHAP)
Learn about the NESHAP for hospital ethylene oxide sterilizers. Find the rule history information, federal register citations, legal authority, and related rules as well as a rule summary.
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Inorganic Arsenic Emissions from Primary Copper Smelters: National Emissions Standards for Hazardous Air Pollutants
Includes rule summary, rule history and Federal Register citations.
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Inorganic Arsenic Emissions from Arsenic Trioxide and Metallic Arsenic Production Facilities: National Emission Standards for Hazardous Air Pollutants
Includes rule history and summary for 40 CFR 61 Subpart P.
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Mercury Production: National Emissions Standard for Hazardous Air Pollutants
Rule history, summary and Federal Register citations for 40 CFR 61 Subpart E.