Discharge Monitoring Report (DMR) Pollutant Loading Tool
- Overview
- EZ Search
- TRI Search
- Facility Search
- Advanced Search
- Data Explorer
- Everyday Searches
- User Guides/Tech Documents
Note: The tool uses discharge monitoring report (DMR) data from ICIS-NPDES to calculate pollutant discharge amounts. EPA has verified the accuracy of the tool’s calculations. EPA has also performed a limited review of the underlying data that has focused on facilities with the largest amounts of pollutant discharges. Due to the large amount of DMR data, additional errors exist in ICIS-NPDES. Please see the User Guide (29 pp, 2.6MB), Frequently Asked Questions and Answers, and Error Correction page for instructions on how to use the tool and how to correct errors in ICIS-NPDES. The tool also uses wastewater pollutant discharge data from the Toxics Release Inventory (TRI). You can send an email to waterloadings@epa.gov with any comments or questions about the tool. You can sign up for our e-mail news bulletin and be notified when new data, enhancements, or training materials are available.
User Guides/Technical Documents
The following links provide information on how you can use the DMR Pollutant Loading Tool.
You will need Adobe Reader to view some of the files on this page. See EPA’s PDF page to learn more.
General Information
- Frequently Asked Questions and Answers (FAQs)
- About the Data
- Technical Support Documents – Useful for More Advanced/Technical Users
Includes the following information: - Factsheets
- Technical Users Background Document
- Web Services
- Automatic and Manual Corrections to DMR Data
- Files for Downloading
- NPDES Program Information
Information about Search and Search Results
Search and Search Criteria Help
- EZ Search Help
- TRI Search Help
- Facility Search Help
- Advanced Search Help (Coming Soon)
- Search Results: Quick User Guide for the Discharge Monitoring Report (DMR) Pollutant Loading Tool (PDF) (29 pp, 2.6MB)
- Data Dictionary for Search Results (PDF) (75 pp, 1.5MB)
- User Guide for Error Reporting
Data Explorer
Everyday Searches
- Everyday Searches User Guide (PDF) (16 pp, 2MB)
- EPA Lookup Tables User Guide
- DMR and TRI Comparison Dashboard Help
- About the Nutrient Model
| About the Data | Glossary | Error Correction | Contact Us |