Monday, May 23, 2011

FInal Wisconsin Tier 1 & Tier 2 Industrial General Permits

The Wisconsin Department of Natural Resources (WDNR) has released its final industrial stormwater general permits for Tier 1 and Tier 2 facilities. These permits cover stormwater discharges from certain types of industrial and “industrial-like” operations that are required to have a WPDES permit to discharge stormwater. The previous general permits expired in 2006.

You can review a Regulatory Briefing on either of the final permits using the following links:

Summary of Tier 1 Industrial Stormwater Discharge Permit
Summary of Tier 2 Industrial Stormwater Discharge Permit

The final permits are effective May 13, 2011; all facilities covered under the previous permit are now subject to the requirements of the new permit. Many of the proposed requirements are similar to the requirements in the existing permits. However, some key changes are related to meeting State antidegradation requirements for new or expanded discharges, and for discharges to impaired waters and to the Great Lakes drainage area.

Caltha LLP provides expert consulting services to public and private sector clients in Wisconsin and nationwide to address Stormwater Permitting & Regulatory Support, Stormwater Pollution Prevention Plans (SWPPP), Stormwater Monitoring and Stormwater Training.

For further information contact Caltha LLP at or Caltha LLP Website