Learn the Issues

Harbortown Upstream Area Site Characterization Report (2019)

Details progress made in the Michigan portion of the AOC since 2002.

General Conformity Training Module 3.5: Demonstrating Conformity

Module 3.5 describes how a federal demonstrates conformity.

Off-site Groundwater Treatment Pilot Study

In July 2018, EPA asked Amphenol Corporation to sample air quality conditions at its Franklin, Ind. facility (IND 044 587 848) related to VOC emissions from the groundwater recovery/air stripping remedial system.

General Conformity Training Module 4.1: State, Tribal, and Local Involvement

Module 4.1 explains houw State, tribal and local air quality agencies have a number of responsibilities under the General Conformity Regulations and what they are.

De Minimis Emission Threshold Rates

This page summarizes de minimis levels, or minimum thresholds, for determining emissions conformity for various criteria pollutantss in various areas.

De Minimis Tables

De minimis Tables

General Conformity Training Module 2.1: Applicability Process

Module 2.1 explains how emissions from the total action are used to determine if they exceed the de minimis levels.

Frequent Questions on the Phasedown of Hydrofluorocarbons

FAQ for HFC phasedown program

Learn About Lead

This page provides basic information on lead including what it is, where it is found, how one can be exposed, and the health effects associated with lead.

General Conformity Training Module 1.2: Who and How

Module I provides an overview of the program purpose. 1.2 describes who makes the General Conformity Determination and how it is done.

Modeling Clarification Memorandum for Secondary Pollutants and Nitrogen Dioxide

Memo for using modeling to demonstrate general conformity

General Conformity Training Module 3.3: Response to Emergency Events

Module 3.3 provides detailed information on how federal agencies respond to emergencies and allowances under the General Conformity Regulations.

General Conformity Training Module 2.2: Emissions and Review

Module 2.2 provides a definitions for direct and indirect emissions, and how emissions are evaluated under General Conformity Regulations.

Lead

Learn about the health effects of lead, who is at risk, how to test for lead in paint or other areas of your home, how to find or become a lead-safe certified firm, and more about the Lead Renovation Repair and Painting (RRP) rule.

Hazardous Waste Cleanup: Neolpharma Inc.-PBG Puerto Rico LLC in Caguas, Puerto Rico - PRD090378225

The site was formerly owned by the Puerto Rico Industrial Development Company (PRIDCO). It consists of an approximately 1.75-acre parcel that was first developed for industrial use in 1977 by the Sylvania Manufacturing Company (later known as Sylvania

March 12 Community Meeting for Patrick Bayou Site

Information about EPA's community meeting Thursday, March 12, from 6-7:30 pm at the Deer Park Public Library to give an update on the Patrick Bayou Superfund site.

Date: March 12, 2026