Discharge Monitoring Reports
Facilities that discharge wastewater to the ground surface or to any waterbody, are required to have a Surface Water Discharge permit. This permit typically requires that a facility submit reports summarizing its monitoring results. These reports are called Discharge Monitoring Reports (DMRs). Most facilities have pre-printed DMR forms provided by DENR. If you need more DMR forms, please contact Tim Flor with DENR via e-mail or by calling (605) 773-3351.
All required sample collection and analytical results must be reported to DENR on the DMR forms. DMRs must be submitted to DENR by the date specified in the permit:
Facilities that are required to report monthly, must submit the DMR on the 28th day of the following month. For example, the report for March 1 to March 31 would be due on April 28th.
Facilities that are required to report quarterly, must submit the DMR on the 28th day of the month following the end of the quarter. The submittal dates are as follows:
by April 28th – for January, February, and March DMRs
by July 28th – for April, May, and June DMRs
by October 28th – for July, August, and September DMRs
by January 28th – for October, November, and December DMRs
This site will provide some guidance for properly filling out a DMR form. If you need additional assistance, please feel free to contact Tim Flor via e-mail or by calling (605) 773-3351.
Step 1: What is a DMR? This site will discuss each portion of the DMR and provide guidance on filling out the form properly and completely.
Step 2: Summarizing the Data. This site will provide information on how to calculate averages and how to properly report the data on the DMR.
Step 3: Submitting the DMR.
For discharges that fall during a week which is split between two months, follow the Saturday Rules for filling out a DMR (this will open an Excel Spreadsheet).
Need help calculating a Geometric Mean?