Learn the Issues
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Update on the Status of TSCA Risk Management Rule for TCE
EPA is providing an update on the effective date of the Toxic Substances Control Act final risk management rule for trichloroethylene (TCE).
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Nutrient Loading and Removal in the Lower Mississippi River Basin: Data, Trends & Opportunities
The presentations, agenda, and agenda sessions transcripts for the June 2006 Symposium on Nutrient Loading & Removal in the Lower Mississippi River Basin: Data, Trends & Opportunities.
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Hypoxia Task Force Annual Operating Plans
This document page includes four Hypoxia Task Force annual operating plans from 2008-2011.
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Gulf Hypoxia and Local Water Quality Concerns Workshop
The presentations, agenda, and full proceedings by session for the September 2005 Gulf Hypoxia and Local Water Quality Concerns Workshop.
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Hypoxia Task Force: Moving Forward
Landing page for Moving Forward on HTF website sidebar
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Hypoxia Task Force New Goal Framework
The updated coastal goal and interim target and commitment to accelerated and new actions to reduce nutrients basin wide, announced by the HTF in February 2015.
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Hypoxia Task Force Work with Land Grant Universities: Priorities for Collaborative Work
This document outlines emergent opportunities as of May 2018 for potential short- and long-term collaborative work between the Hypoxia Task Force and LGU SERA-46.
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Hazardous Waste Cleanup: Former Carboline Company Facility - Xenia, Ohio
RCRA Hazardous Waste Former Carboline Company Facility - Xenia, Ohio
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January 2024 TSCA Fragrance Technical Expert Meeting
EPA’s New Chemicals Program hosted meetings in January 2024, to seek input on determining dermal sensitization potency of fragrances, evaluating chronic aquatic toxicity of fragrances and understanding the biodegradation of fragrances under TSCA.
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Webinars about Integrated Pest Management
EPA is sponsoring a webinar series on IPM in Schools topics. Find out about past and upcoming webinars.
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Sampling Data for the Former Hoover Facility
Some of former Hoover Company sites key Resource Conservation and Recovery Act (RCRA) corrective action documents, reports and graphics are accessible online
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Presque Isle Bay AOC Boundary Map
Printable map from 2005 and GIS shapefile of this Area of Concern, provided by EPA's Great Lakes National Program Office.
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EPCRA extremely hazardous substances and relationship to CERCLA hazardous substances
How are EPCRA extremely hazardous substances (EHSs) related to CERCLA hazardous substances? There are currently about 360 EHSs defined under EPCRA section 302 ; over a third of them are also CERCLA hazardous substances. Aside from this overlap of listed substances, CERCLA and EPCRA also have closely related notification requirements…
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What is the relationship between reportable quantities (RQs) and threshold planning quantities (TPQs)?
The reportable quantity (RQ) that triggers emergency release notification (Section 304) was developed as a quantity that when released, poses potential threat to human health and the environment. The RQs were developed using several criteria, including aquatic toxicity, mammalian toxicity, ignitability, reactivity, chronic toxicity, potential carcinogenicity, biodegradation, hydrolysis, and photolysis…
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TPQ calculations for hazardous substances in molten form
Facilities are subject to emergency planning and notification requirements under EPCRA (also known as SARA Title III) when an extremely hazardous substance (EHS) is present at a facility in an amount equal to or in excess of its TPQ. For some EHSs that are solids, two TPQs are given (e.g…
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Hazardous Waste Cleanup: Arkema Inc. East Plant Riverview and Wyandotte, MI
RCRA Corrective Action Site, Arkema Inc. East Plant Riverview and Wyandotte, MI
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311/312 - Retail gas station "not in compliance" with UST requirements
For purposes of using the higher EPCRA gasoline and diesel fuel thresholds, when is a retail gas station considered "not in compliance" with UST requirements? A facility is not in compliance with the UST requirements (and therefore not eligible for the higher EPCRA thresholds) when it first fails to meet…
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Are landfills covered under Title III of SARA since they are covered by RCRA?
Yes, landfills are subject to certain Title III requirements. Subtitle A of Title III is intended to identify facilities which present a potential hazard for a chemical emergency and to provide a process for local emergency planning committees to engage with such facilities in determining the significance of the release…
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Does sheet metal lose the manufactured item exemption when cut, welded, or brazed?
A facility stores and processes sheet metal that contains a hazardous chemical requiring a material safety data sheet (MSDS) under OSHA's Hazard Communication Standard ( 29 CFR section 1910.1200 ). The sheet metal, when in storage, is considered a manufactured solid and is therefore excluded from the definition of hazardous…
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Is customized paint exempted under the consumer product exemption?
A store sells paint in five-gallon cans to the general public. Customers may purchase the paint as received from the manufacturer, or they may request a custom shade of paint. To attain the customer's desired shade, store employees will mix two or more base colors. This process involves opening the…