Laws & Regulations
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Parent Company Definition for Toxics Release Inventory Reporting
Summary of a proposed rule that will formally define what a parent company is, for TRI reporting purposes.
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Addition of Diisononyl Phthalate Category Rule
In 2000, EPA proposed to add a Diisononyl Phthalate Category to the TRI chemical list, based on this chemical's carcinogenicity and liver, kidney, and developmental toxicity.
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Underground Injection Control in EPA Region 6 (AR, LA, NM, OK, and TX)
Region specific UIC contact information is provided.
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Cyanide Clarification of Free and Total Cyanide Analysis for Safe Drinking Water Act Compliance
Code of Federal Regulations entries associated with monitoring for cyanide under the Safe Drinking Water Act (SDWA).
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Section 401 of the Clean Water Act
Section 401 of the Clean Water Act
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Coastal Stormwater Management Through Green Infrastructure: A Handbook for Municipalities
The handbook is designed to assist municipalities within the Massachusetts Bay and Cape Cod Bay areas to incorporate green infrastructure into their stormwater management planning. It can also be readily applied to other states.
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Protecting and Restoring Habitat, Living Resources
These documents are case studies of communities protecting and restoring habitat and living resources.
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Permit Documents for Vineyard Wind 1, LLC's Wind Energy Development Project (800MW offshore windfarm)
Permit documents for Vineyard Wind 1, LLC's Wind Energy Development Project (800MW offshore windfarm)
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Public Notice: Modified Draft UIC Permit for Prasinos Storage I LLC Class VG experimental technology injection well in Oxford, New York
Prasinos Storage I LLC, 720 Rusk Street #227, Houston, TX 77002 has applied to the U.S. Environmental Protection Agency under the provisions of the Safe Drinking Water Act, 42 U.S.C. 300f et. seq (the Act), for a major modification of its UIC permit.
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Actions Open for Public Comment at EPA New England
Summary of issues that EPA's New England regional office is seeking public input and comment on.
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Black Brook Realty Properties, LLC, CWA-01-2025-0063
Notice of Proposed Assessment of Class I Clean Water Act Section 309(g)(2)(A) Administrative Penalties and Opportunity to Comment for Black Brook Realty Properties, Upton, MA, CWA-01-2025-0063.
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Federal & State Contacts
Federal & State Contacts
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Operating Permit Timeline for Louisiana
Part 70 Title V Operating Permit Timeline for Louisiana
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Methods Update Rules
Descriptions of Methods Update Rules; revisions to Clean Water Act analytical methods that are codified at 40 CFR Part 136.
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Procedure 7 - Quality Assurance Requirements for Gaseous Ethylene Oxide (ETO) Continuous Emission Monitoring Systems Used for Compliance Determination
Promulgated quality assurance procedure 6 - Quality Assurance Requirements for Gaseous Hydrogen Chloride (HCl) Continuous Emission Monitoring Systems Used for Compliance Determination at Stationary Sources
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Performance Specification 19 - Performance Specifications and Test Procedures for Ethylene Oxide (ETO) Continuous Emission Monitoring Systems
Performance Specification 3 - Specifications and Test Procedures For O2 And CO2 Continuous Emission Monitoring Systems In Stationary Sources
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Method 327 Fugitive and Area Source Measurement of Selected Volatile Organic Hazardous Air Pollutants Using Specially Prepared Canisters
Determination of Isocyanates in Stationary Source Emissions
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Envirofacts Data Service API
Envirofacts is developing web services to facilitate the sharing of its functionality and information. All of the
services that are available within Envirofacts will be listed on this page. -
Envirofacts Data Service API (V1)
Envirofacts is developing web services to facilitate the sharing of its functionality and information. Version 1 of the Envirofacts REST Service is detailed on this page.
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TRI Statistics
The Toxics Release Inventory (TRI) contains information about more than 650 toxic chemicals that are being used, manufactured, treated, transported, or released into the environment.