ICIS-NPDES Permit Limit and Discharge Monitoring Report (DMR) Data Sets
Permit Limits and Discharge Monitoring Report (DMR) data sets for Clean Water Act permitted dischargers are available in national files on the ECHO Data Downloads page and by jurisdiction below. DMR data are available by fiscal year to facilitate use of the information. Data are from the EPA national system of record, ICIS-NPDES. The pages below describe the data.