We've made some changes to EPA.gov. If the information you are looking for is not here, you may be able to find it on the EPA Web Archive or the January 19, 2017 Web Snapshot.

Publicly Owned Treatment Works (POTW): National Emission Standards for Hazardous Air Pollutants (NESHAP)

Rule Summary

The primary hazardous air pollutants (HAP) emitted by these sources include xylenes, methylene chloride, toluene, ethyl benzene, chloroform, tetrachloroethylene, benzene, and naphthalene.

Each of these HAP can cause adverse health effects provided sufficient exposure.

Rule History

You will need Adobe Reader to view some of the files in this section. See EPA’s About PDF page to learn more.10/16/2017 - Final Amendments; Risk and Technology Review 

2/22/2017 - Extension of Public Comment Period

12/8/2016 – Proposed Amendments; Risk and Technology Review (PDF)

10/21/2002 – Final Rule; Amendments (PDF)

03/22/2002 – Proposed Amendments (PDF)

03/23/2001 – Final Rule; Corrections (PDF)

10/26/1999 – Final Rule (PDF)

12/01/1998 – Proposed Rule (PDF)

Additional Resources

You will need Adobe Reader to view some of the files in this section. See EPA’s About PDF page to learn more.Publicly Owned Treatment Works (POTW): Final Risk and Technology Review Fact Sheet

Publicly Owned Treatment Works (POTW):  Proposed Risk and Technology Review Fact Sheet

Publicly Owned Treatment Works Regulatory Text Redline Showing Proposed Changes

Publicly Owned Treatment Works (POTW): Final Air Toxics Rule Fact Sheets

National Emission Standards for Hazardous Air Pollutants (NESHAP): Publicly Owned Treatment Works - Background Information for Final Standards Summary of Public Comments and Responses (PDF)

Submitting Data Corrections to the RTR Emissions Risk Modeling File