An official website of the United States government.

This is not the current EPA website. To navigate to the current EPA website, please go to www.epa.gov. This website is historical material reflecting the EPA website as it existed on January 19, 2021. This website is no longer updated and links to external websites and some internal pages may not work. More information »

Cross-Media Electronic Reporting Rule

CROMERR Compliance for the Publicly Owned Treatment Works Pretreatment Program

Publicly Owned Treatment Works (POTW) NPDES Pretreament e-Reporting

A memorandum to Pretreatment Authorities who are Cross‐Media Electronic Reporting Rule (CROMERR) applicants about their obligation to follow both National Pretreatment Program requirements and CROMERR procedures when applying for, approving and incorporating CROMERR practices into an approved POTW pretreatment program.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.

CROMERR Compliance for POTW Pretreatment Program (PDF)(7 pp, 190 K, May 2018)