Publications and Reports

MS4 modeling guidance

This section is intended for use by highly technical professionals. Download the modeling guidance developed for municipalities permitted under the Municipal Separate Storm Sewer System (MS4) WPDES program. The guidance discusses minimum pollutant…

Groundwater Mounding Calculations

This section is intended for use by highly technical professionals. Find additional information concerning the design and management of artificial recharge systems and their effect on groundwater levels:

Storm water construction technical standards

Storm water construction technical standards are documents that specify the minimum requirements needed to plan, design, install and maintain a wide array of conservation practices aimed at preserving the land and water resources of Wisconsin…

Storm Water Technical Standards, Models and BMPs

Use these technical standards to plan, design, install, and maintain erosion/sediment control and storm water management practices to comply with ch. NR 151, Wis. Adm. Code [exit DNR].

Storm water publications/guidance

These publications and guidance documents provide technical assistance for developing soil erosion control and storm water management plans, designing storm water management practices, practicing pollution prevention, and planning public education…

Municipal storm water permit e-Reporting

When to e-ReportEffective January 2018, all municipalities permitted under the WPDES Municipal Separate Storm Sewer System (MS4) program submitting MS4 permit documents, including the Annual Reports due by March 31 each calendar year, must use the…

Spreadsheet Tool for Estimating Pollutant Loads (STEPL) webinar

The DNR and EPA offered a hands-on technical training on the Spreadsheet Tool for Estimating Pollutant Loads (STEPL) on Aug. 5, 2014. A recording of the training session and the presentation materials are available.

Erosion Vulnerability Assessment for Agricultural Lands (EVAAL)

Plan map

The watersheds shown on this map have DNR and EPA-approved Nine Key Element watershed plans. To review the Nine Key Element watershed plan areas with other DNR GIS layers, use: Water condition viewer * Note: The Priority Watershed and Lakes…

Expired nine key element watershed plan areas

Wisconsin has multiple expired watershed plans. To see their location, go to: