Learn the Issues
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General Chemical Data Reporting Questions
These Frequently Asked Questions (FAQs) are intended to clarify the reporting requirements for Chemical Data Reporting for the 2016 reporting period.
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EPA Data Requirements for Registration of Antimicrobial Pesticides: Part 158W
This page explains changes to the data requirements for antimicrobial pesticides and describes the antimicrobial pesticide use site index.
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Aggregating a substance located in multiple processes
Under 40 CFR Part 68, if multiple processes at a stationary source contain the same regulated substance, must the amounts of the substance in the individual processes be aggregated to determine whether a threshold is exceeded? No. Applicability of the risk management program requirements is based upon the presence of…
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NFPA 4 Criteria
A stationary source has a mixture above the threshold. At standard temperature and pressure, the mixture does not meet the criteria for a National Fire Protection Association flammability rating of 4 (NFPA 4). At elevated temperatures and pressures, however, the mixture meets the NFPA 4 criteria. Is this process covered…
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Voluntary Guidelines for Methamphetamine and Fentanyl Laboratory Cleanup
Provides technical guidance for state and local personnel responsible for meth lab cleanup, as required by Methamphetamine Remediation Research Act of 2007.
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Everglades REMAP Fish Mercury Bioaccumulation Modelling Report
Everglades Mercury bio-accumulation
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City of Philadelphia, Pennsylvania - Clean Water Act Public Notice
The EPA is providing notice of a proposed Administrative Penalty Assessment against the city of Philadelphia, who owns and/or operates the Southwest Water Pollution Control Plant, a publicly owned treatment works, located at 8200 Enterprise Ave., Philadelp
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Clean Air Action Section 303 - Limetree Bay
Read the Limetree Bay Clean Air Action Section 303 order.
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EPA Interim Evaluation of 2016-2017 Milestone Progress in the Chesapeake Bay Watershed
This page provides the EPA interim evaluations of the 2016-2017 milestones for the Chesapeake Bay TMDL. These interim assessments provide a mid-point check on the progress made on the 2016-2017 milestones, recognizing the achievements made in 2016.
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Nitrogen Dioxide Designations - Indiana State Recommendation and EPA Response
2010 Nitrogen dioxide (NO2) standards. Indiana state recommendation and EPA response.
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Nitrogen Dioxide Designations - Pechanga Band of Luiseno Indians Tribal Recommendation and EPA Response
2010 Nitrogen dioxide (NO2) standards. Pechanga Band of Luiseno Indians Tribal recommendation and EPA response.
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Nitrogen Dioxide Designations - Minnesota State Recommendations and EPA Response
2010 Nitrogen dioxide (NO2) standards. Minnesota state recommendation and EPA response.
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Springfield, Missouri, Transforms Superfund Landfill into New Community Trail
What was once an industrial landfill in Springfield, Missouri, is now a section of the Fulbright Spring Greenway Trail. This section connects Ritter Springs Park with Lost Hill Park, just north of the city, and much of it follows the Sac River.
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Veolia Environmental Services Technical Solutions, Phoenix, AZ
Veolia Environmental Services Technical Solutions (Veolia) operates a polychlorinated biphenyl (PCB) storage and processing facility located at 5736 West Jefferson Street in Phoenix, Arizona.
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Regional Capacity Development Coordinator Handbook
Water System Partnerships Meeting Summary
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Water Workforce Training Programs
Compilation of training programs for new and experienced operators.
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Water Workforce Veteran Promotion
Resources for utilities considering hiring veterans.
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Peer review for Bristol Bay Assessment
Peer review process and documents for EPA's Bristol Bay Assessment.
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Toxics in the Food Web
An assessment of metals and persistent organic pollutants such as PCBs and PBDEs in the Salish Sea. Part of the U.S. EPA and Environment and Climate Change Canada's Health of the Salish Sea Ecosystem Report.