Laws & Regulations
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Caithness Long Island, LLC Brookhaven, NY
Caithness draft PSD permit application
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HOVENSA, St. Croix, VI (GT-10 Monitoring Method)
GT-10 Monitoring Method final PSD permit
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HOVENSA, St. Croix, VI (Ultra Low-NOx Converter)
Ultra Low-NOx Converter final PSD permit
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TMDLs Where Mercury Loadings are Predominantly from Air Deposition
A presentation documenting Total Maximum Daily Load (TMDL) approaches for cases in which mercury loadings are predominantly from air deposition into waters.
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Using Microbial Source Tracking to Support TMDL Development and Implementation
A guide for TMDL practitioners on microbial source tracking, detailing how it can be used to support TMDL development and implementation.
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Revised Sediment TMDL for the Indian Creek Watershed in Montgomery County, Pennsylvania
Documents, files, and information regarding the revised sediment TMDL for the Indian Creek Watershed. Montgomery County, Pennsylvania.
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Listing Waters Impaired by Atmospheric Mercury: Voluntary Subcategory 5m for States with Comprehensive Mercury Reduction Programs
The document presents information regarding a voluntary approach for listing waters impaired by mercury predominantly from atmospheric sources pursuant to Clean Water Act Section 303(d), also known as “subcategory 5m.”
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Options for Expressing Daily Loads in TMDLs
The draft document provides technical options for developing daily load expressions in TMDLs calculated using time frames greater than daily allocations.
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Third Party TMDL Development Toolkit
Water Environment Federation's toolkit provides basic steps in which an organization or group other than the lead water quality agency takes responsibility for developing the TMDL document and supporting analysis.
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EPA’s Additions to Indiana’s 2020 Impaired Waters List
Documents related to EPA’s Decision on Indiana’s 2020 Section 303(d) list of impaired waters
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Washington SIP: EPA Approved Regulations (Table 8 - Southwest Clean Air Agency)
EPA approved regulations for the Southwest Clean Air Agency in Washington's air quality State Implementation Plan (SIP).
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Materials for June 2024 Webinar on Final Regulation of Methylene Chloride under TSCA
Meeting materials from the June 4, 2024 webinar on the final risk management rule for methylene chloride.
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TSCA Work Plan Chemical Problem Formulation and Initial Assessment 1,4-Dioxane
1,4-Dioxane Problem Formulation and Initial Assessment
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Methylene Chloride Scope Document and Supplemental Files
scope document and supplemental files for methylene chloride
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Trichloroethylene (TCE) Scope Document and Supplemental Files
Scope document and supplemental files for Trichloroethylene (TCE)
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Asbestos Scope Document and Supplemental Files
Scope document and supplemental files for asbestos
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1-Bromopropane (1-BP) Scope Document and Supplemental Files
scope document and supplemental files for 1-BP
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Materials for June 2023 Webinar on Proposed Regulation of Methylene Chloride under TSCA
Materials page for webinar on risk management for methylene chloride
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N-Methylpyrrolidone (NMP) Scope Document and Supplemental Files
scope document and supplemental files for NMP
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1,4-Dioxane Scope Document and Supplemental Files
Scope Document and supplemental files for 1,4-dioxane