Environmental Rules in Iowa City, IA (2026)
2 verified environmental rules for Iowa City, Iowa, sourced directly from the municipal code and official government pages.
Verified from official government sources
Stormwater Management
Iowa City regulates stormwater under City Code Title 15, Chapter 3, Section 15-3-8 (Stormwater Management) and Title 16, Chapter 3, Article G (Dry and Wet Bottom Stormwater Management Facilities, including 16-3G-7). The City operates a federally regulated MS4 under Iowa's NPDES program (Iowa Code Ch. 455B and Iowa Admin. Code 567 Ch. 60), and any land disturbance or new impervious surface that would alter runoff to the Iowa River or Ralston Creek triggers stormwater plan review. Iowa City discharges directly to the Iowa River, which is on Iowa DNR's impaired waters list.
Iowa City Stormwater Management - Code 15-3-8 and 16-3G
Heavy RestrictionsFlood Zones
Iowa City regulates development in flood hazard areas under Title 14 Chapter 5 Article J (Floodplain Management Standards), with the floodplain development permit codified at 14-5J-6. After the catastrophic June 2008 flood (the Iowa River crested at 31.5 ft and inundated approximately 1,600 acres including the University of Iowa Arts Campus), Iowa City adopted in 2010 some of the strongest local floodplain standards in the country: new and substantially improved structures must be elevated or flood-proofed to one foot above the 500-year flood elevation, not the 100-year level used by the National Flood Insurance Program minimum. The Building Official serves as Floodplain Administrator.
Iowa City Floodplain Management - Title 14 Article J (500-Year Standard)
Heavy RestrictionsLooking for Johnson County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Iowa City city rules.
Environmental Rules in Johnson County →