Proposed Tier 1 Industrial Storm Water General Permit

In November 2010, the Wisconsin Department of Natural Resources (WDNR) put on public notice the proposed reissued “General Permit to Discharge under the Wisconsin Pollutant Discharge Elimination System WPDES No. WI-S067849-3. Tier 1 Industrial Facilities” or “Tier 1 permit”. This permit covers stormwater discharges from certain types of industrial and “industrial-like” operations that are required to have a stormwater discharge WPDES permit.

The proposed permit includes many of the same requirements that are included in the current WDNR industrial stormwater permit. However, some significant changes are being proposed for facilities located near certain types of water bodies. The proposed general permit also incorporates additional requirements to assure stormwater discharges from Tier 1 facilities do not cause or contribute to water quality impairments.

Link to Regulatory Briefing on Proposed Tier 1 Industrial Storm Water Permit


Link to summary of key changes in Tier 1 Industrial Discharge General Permit

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