The Illinois EPA issued its revised NPDES General Permit for industrial stormwater discharge in March 2017 and the permit was effective on April 5, 2015. Facilities that had been covered under the prior permit was wished to continue coverage under the new permit have to submit a new application.
Applications (Notice of Intent) for permit coverage were due with in 150 days after the new permit was effective. All permitted facilities need to submit a NOI before September 5, 2017.
Click here to review example Caltha projects related to stormwater permitting and stormwater pollution prevention, including SWPPP projects in Illinois.