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NPDES Operator Information


Several online resources are available for wastewater treatment plant operators.  Please see the links below for more information on the particular resource you are interested in.

For more information on wastewater operator certification, please see the DNR Water/ Wastewater Operator Certification page.

For information on Discharge Monitoring Report forms (DMRs, also known as Monthly Operation Reports or MORs), for individual permits, please see the DMR Forms page.

For a list of permit delay reasons (why a permit has not yet been reissued), or to find out which permit writer is working on the reissuance of a certain individual permit, please see the Current NPDES Permits page.

To complete an individual permit application online, please see the WWPIE Online Permit System page.

To obtain paper permit application forms and instructions for individual NPDES permits, please see the NPDES Application Forms page.


For information on how to sample treated effluent for bacteria, and on how to calculate a geometric mean, see the Bacteria Sampling page.

To find a certified laboratory in Iowa, please go to the Certified Laboratories Facility Search page on the State Hygienic Laboratory site.

For information on significant industrial users and treatment agreement requirements and forms, see the Treatment Agreements page.

For information on antidegradation and how to conduct an analysis, please see the Antidegradation Analysis page.

If your community is interested in qualifying as disadvantaged, and for information on rural communities and funding options for these communities, please see the Rural Community Sewers page.

For more information on Clean Water State Revolving Fund loans, please see the CWSRF page.