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Frequently Asked Questions

General - What is NetDMR?

NetDMR is a web application that can be used to enter and submit data required to meet NPDES permit reporting requirements. The Agency (State, Region, Tribal Nation, or EPA headquarters) that issued and manages your permit can tell you whether you can report using NetDMR.

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General - What is a NPDES permit?

NPDES (National Pollutant Discharge Elimination System) permits are issued under the authority of the Clean Water Act and regulate discharges to the waterways of the United States. A State environmental agency, Region, or Federal EPA may issue and/or manage NPDES permits. For more information about the NPDES program, see

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General - What is a DMR?

A DMR is a Discharge Monitoring Report. A common requirement of a NPDES permit is regular self-monitoring of permitted parameters, typically monthly. The results of this regular self-monitoring are submitted to the regulating agency on a DMR form.

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General - How does NetDMR work? Where do my DMR data go?

After you complete, sign, and submit a DMR, NetDMR creates and stores the Copy of Record (COR) for that DMR. NetDMR then forwards your DMR data to ICIS-NPDES, EPA's central repository for DMR data through EPA's Central Data Exchange. You can retrieve and download your COR at any time using NetDMR.

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General - Is NetDMR secure?

Yes, your communications with NetDMR are secured by your password, responses to security questions, and use of SSL communications. SSL is commonly used by on-line banking sites.

In addition, NetDMR has received approval from EPA that it meets the requirements of the Cross-Media Electronic Reporting Rule (CROMERR). CROMERR specifies standards that govern electronic reporting to states, tribes, and local governments under EPA-authorized programs, such as the NPDES program. The CROMERR standards are designed to provide these electronic submittals with the same level of legal dependability as the corresponding paper submittals. For more information about CROMERR, see

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NetDMR is intended for official use only. Unauthorized access or use of this computer system may subject violators to criminal, civil, and/or administrative action. Access or use of this computer system by any person, whether authorized or unauthorized, constitutes consent to these terms.

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