The draft Wisconsin DNR Technical Standard 1010 Proprietary Storm Water Filtration Devices is available for review and comment until April 17, 2020.

The Wisconsin DNR Technical Standard 1010 Proprietary Storm Water Filtration Devices is a new standard to define criteria and procedures to determine the reduction in total suspended solids and total phosphorus using proprietary filtration devices.  Development of this standard included the review of existing research and procedures utilized by other state programs along with input from government and industry experts.  This standard was created through