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Storm water post-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 during construction. They are based on current research, field experience, the best available technology, and are a primary component to many federal, state and local conservation programs.

The DNR has approved the technical standards listed below as adequate and effective to implement the performance standards of subch. III of ch. NR 151 for erosion/sediment control or storm water management after construction is complete.

Important Information: Under s. SPS 382.20, Wis. Adm. Code, the Wisconsin Department of Safety and Professional Services (DSPS) regulates plumbing installations associated with post-construction storm water treatment practices and systems such as bioretention systems, infiltration systems, storm water inlets, roof drains, and projects involving 16 or more plumbing fixtures. For post-construction storm water treatment practices and systems, the DNR does not review conveyance or subsurface plumbing for compliance with DSPS requirements. Landowners requiring coverage under the DNR construction site storm water permit must also coordinate with DSPS on the plumbing requirements for post-construction storm water management practices and systems. Contact the DSPS Plumbing Program [exit DNR] for more information.

Note: See the Errata notes at the end of the table for updates to the standards.

Post-construction standards Number Effective date
1. Bioretention for infiltration [PDF] Tech Note
2. Compost [PDF]
3. Infiltration basin Form 1003 [PDF] Tech Note
Fig. 1 [PDF], Fig. 2 [PDF], Fig. 3 [PDF], Fig. 4 [PDF]
4. Sizing infiltration basins and bioretention devices Tech Note
5. Infiltration trench [PDF]
6. Permeable pavement [PDF] Tech note [PDF]
7. Proprietary storm water sedimentation devices [PDF]
8. Site evaluation for stormwater infiltration [PDF] *
9. Vegetated swale [PDF]
10. Wet detention pond Part 1 [PDF], Part 2 [PDF]
11. Errata and notes
  • Updates to post-construction standards: Errata [PDF]
  • * The technical standard contains a reference to the NRCS Field Book for Describing and Sampling Soils. Since this technical standard was developed, there has been an update to the referenced field book. The current version is 2.0.
  • Process to assess and model grass swales (TSS reduction) (Apr-08) [PDF]
    • Errata to swale guidance (Aug-08) [PDF]
    • Errata to swale guidance (Jan-10) [PDF]
  • Internally Drained Area Guidance (Apr-09) [PDF]

Additional information

Last revised: Wednesday February 08 2017