Laws & Regulations
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Fact Sheet: The Drinking Water Contaminant Candidate List 2 -- The Source of Priority Contaminants for the Drinking Water Program
Fact sheet on the Contaminant Candidate List (CCL).
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CCL 3 Support Documents - Screening and PCCL Documents
Learn about the support documents for CCL 3 screening and PCCL
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CCL 3 Support Documents - Final CCL 3 (and other documents)
Learn about the support documents used to develop the Final CCL 3
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CCL 3 Support Documents - Universe Documents
Learn about the support documents for identifying the universe for CCL 3
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Clean Air Act Standards and Guidelines for the Metals Production Industry
Stationary sources of air pollution for metal production industries, and their corresponding air pollution regulations.
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Definition of "Contaminant"
Learn about the definition of a contaminant
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Evaluating Contaminant Occurrence and Exposure Data for Six-Year Review of Drinking Water Standards
Learn about EPA's goals in considering contaminant occurrence and exposure analysis for public water systems
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Water and Wastewater Systems Sector Cybersecurity
Water & Wastewater Systems Sectory Cybersecurity is helping water & wastewater entities build resilience to cyber threats & hazards by providing information & resources that water & wastewater utilities can leverage to enhance their cybersecurity posture.
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Cement Sector Information
Learn about environmental resources for the cement and concrete sector.
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Concrete Sector Information
Learn about environmental resources for the concrete and cement sector.
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Electronics and Technology Sector Information
Learn about environmental resources for the computer, electronics and technology sectors.
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EPA Awards $10.5 Million to Cut U.S. School Bus Emissions, Replace California Diesel Buses with Electric
California receives $885,000, including funds for 14 of the 16 electric buses offered nationally
EPA News Release: EPA Awards $10.5 Million to Cut U.S. School Bus Emissions, Replace California Diesel Buses with Electric
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EPA settles diesel emissions cases against three northwest companies
Spokane Valley, Hayden, Idaho companies illegally made, sold devices to bypass emissions controls; resulted in at least 49 million pounds in excess emissions
EPA News Release: EPA settles diesel emissions cases against three northwest companies
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Guidance for Ozone and Fine Particulate Matter Permit Modeling
This document is part of the NSR Policy and Guidance Database
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Public Interest Waiver of American Iron and Steel Requirements to the City of St. Joseph, Missouri for Air Release/Vacuum Valves
Waiver request approval for the city of St. Joseph, Missouri for use of Air Release/Vacuum Valves in compliance with the American Iron and Steel Requirements
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Project Waiver of American Iron and Steel Requirements to the City of Williston, North Dakota for Tapped Mechanical Joint Wall Sleeves
Waiver of AIS requireents for Williston, ND
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Project Waiver of American Iron and Steel Requirements to the Duchesne County, Utah Water Conservancy District Victory Pipeline Project for HDPE Pipe Back-Up Rings
Approved AIS waiver for back-up rings for HDPE pipe for the Duchesne County UT DWSRF project
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Project Waiver of the American Iron and Steel Requirements to Winston-Salem, North Carolina for Mechanical Joint Adapter Bells and Wall Collars
Project Waiver of American Iron and Steel Requirements to the Winston-Salem and Forsyth County City/County Utilities Commission
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Product Waiver of American Iron and Steel Requirements to the City of St. Joseph, Missouri for Grooved Pipe Fittings
Waiver to the City of St. Joseph, Missouri for use of grooved fittings in accordance with the American Iron and Steel requirements of the Clean Water Act Section 608.
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Project Waiver of American Iron and Steel Requirements to the City of Toledo, Ohio for Flanged Reducing Bends
Project Waiver of the American Iron and Steel Requirements to the City of Toledo, Ohio for Flanged Reducing Bends