Breadcrumbs Home Environmental Protection Water Quality Stormwater Program Stormwater Permit Information
Breadcrumbs Home Environmental Protection Water Quality Stormwater Program Stormwater Permit Information
DNR @ the 2026 Iowa State Fair, Aug 13-23, 2026 Details Are you ready for an unforgettable adventure at the Iowa State Fair? Don't forget to stop by our DNR building located near the west entrance of the fairground, 9am-8pm. 2026 Courtyard Schedule
Stormwater Permits, Guidance & Forms Topics: Forms & Applications Permits, Guidance, and FormsDocument DescriptionForm # NPDES General Permit #1 (465.34 KB) .pdf Summary Guidance for GP #1 (517.05 KB) .pdf Stormwater Management Worksheets for GP #1 (1.3 MB) .pdf NPDES General Permit #2 (375.71 KB) .pdf Summary Guidance for GP #2 (363.59 KB) .pdf NPDES General Permit #3 (406.14 KB) .pdf Summary Guidance for GP #3 (452.46 KB) .pdf Relocation Information for Mobile Facilities, GP No. 3 (1.07 MB) .pdf 542-1544 No-Exposure Certification Form (1.13 MB) .pdf 542-1249 Notice of Intent Form & Instructions, GPs #1, #2, and #3 (1.24 MB) .pdf (Paper Application for Stormwater General Permits)542-1415 NPDES Stormwater General Permit Public Notice Template (1.06 MB) .pdf 542-1416 Notice of Discontinuation, GPs #1, #2, and #3 (1.07 MB) .pdf 542-8115 Individual Permit Application Stormwater Fee Invoice (blank) (1.03 MB) .pdf (must Accompany Form 2F)542-8121⤢Stormwater Manuals Iowa Construction Site Erosion Control Manual (10.49 MB) .pdf How to Control Streambank Erosion (6.74 MB) .pdf Iowa Stormwater Management Manual Secondary Navigation Menu Stormwater Permit Information Permits, Guidance & Forms
Topics: Forms & Applications Permits, Guidance, and FormsDocument DescriptionForm # NPDES General Permit #1 (465.34 KB) .pdf Summary Guidance for GP #1 (517.05 KB) .pdf Stormwater Management Worksheets for GP #1 (1.3 MB) .pdf NPDES General Permit #2 (375.71 KB) .pdf Summary Guidance for GP #2 (363.59 KB) .pdf NPDES General Permit #3 (406.14 KB) .pdf Summary Guidance for GP #3 (452.46 KB) .pdf Relocation Information for Mobile Facilities, GP No. 3 (1.07 MB) .pdf 542-1544 No-Exposure Certification Form (1.13 MB) .pdf 542-1249 Notice of Intent Form & Instructions, GPs #1, #2, and #3 (1.24 MB) .pdf (Paper Application for Stormwater General Permits)542-1415 NPDES Stormwater General Permit Public Notice Template (1.06 MB) .pdf 542-1416 Notice of Discontinuation, GPs #1, #2, and #3 (1.07 MB) .pdf 542-8115 Individual Permit Application Stormwater Fee Invoice (blank) (1.03 MB) .pdf (must Accompany Form 2F)542-8121⤢Stormwater Manuals Iowa Construction Site Erosion Control Manual (10.49 MB) .pdf How to Control Streambank Erosion (6.74 MB) .pdf Iowa Stormwater Management Manual Secondary Navigation Menu Stormwater Permit Information Permits, Guidance & Forms