PUBLIC NOTICE OF STORM WATER DISCHARGE

PUBLIC NOTICE OF STORM WATER DISCHARGE Ryan Companies US, Inc. plans to submit a Notice of Intent to the Iowa Department of Natural Resources to be covered under the NPDES General Permit No. 2 "Storm Water Discharge Associated with Industrial Activity for Construction Activities". The stormwater discharge will be from construction activities located in NE 1/4 of Section 07, Township 79N, Range 23W in Polk County. Storm water will be discharged from 1 point source(s) and will be discharged to the following streams: unnamed tributary to Fourmile Creek to Des Moines River. Comments may be submitted to the Storm Water Discharge Coordinator, Iowa Department of Natural Resources, Environmental Protection Division, 502 E. 9th Street, Des Moines, IA 50319-0034. The public may review the Notice of Intent from 8 a.m. to 4:30 p.m., Monday through Friday, at the above address after it has been received by the department. September 10 2025 LIOW0366307