The Valparaiso Lakes Area Conservancy District is working with the Indiana Department of Environmental Management to maintain the district's MS4 requirements as required under the 1987 Clean Water Act.
| MS4 DOCUMENTATION | |
| MS4 AUDIT | Approval of the MS4 work from IDEM for 2022-2024 |
| NPDES Stormwater Program | U.S. EPA NPDES Stormwater Program Overview |
| NORTHWEST INDIANA STORM WATER ADVISORY GROUP | The Northwest Indiana Storm Water Advisory Group (NISWAG) is a coalition of municipal separate storm sewer system (MS4) entities providing leadership in the protection and enhancement of storm water resources within Lake and Porter Counties. |
