Revised Wisconsin DNR Tier 2 Industrial Permit

The Wisconsin Department of Natural Resources (WDNR) has release the revised Tier 2 permit under Chapter NR 216, Subchapter II — Industrial Storm Water Discharge Permits.  The revised permit became effective on June 1, 2016 and expires on May 31, 2021.




Caltha LLP has been providing technical services to facilities located in Wisconsin to bring them into compliance with the revised permit. Click here to review an example project to prepare a revised SWPPP and permit compliance documentation to meet Tier 2 permit


Caltha LLP provides expert consulting services to public and private sector clients nationwide to address Stormwater Permitting & Regulatory Support, Stormwater Pollution Prevention Plans (SWPPP), Stormwater Monitoring and Stormwater Training. For further information contact Caltha LLP at
info@calthacompany.com or Caltha LLP Website