1. Iowa IDNR NPDES Permit

All prospective owners or operators of construction projects that will disturb one or more acres of total land area must apply for coverage under the Iowa Department of Natural Resources (IDNR) NPDES General Permit #2 for "Industrial Activities Associated with Construction Activities" prior to construction. 

The IDNR NPDES permitting process requires the development of a Stormwater Pollution Prevention Plan (SWPPP) and the submission of a Notice of Intent (NOI). 

Inquire about the IDNR Stormwater program at:
IDNR website
Storm water forms  

2. City of Iowa City Construction Site Runoff (CSR) Permit 


After a subdivision is approved, a CSR permit is required before public improvements (streets, sanitary sewers, storm water conveyances) can be constructed. During this phase of development, the CSR is administered and enforced by Public Works and Engineering. 

Individual Lots

The Building Division administers and enforces CSR permits for residential, commercial, and industrial construction. Before a building permit can be issued, Building Division staff must approve the CSR permit documents and plans, and an inspector must verify that effective perimeter controls are installed at the site.


Checklist of Required Items To Be Submitted for a CSR Permit
Certification Statement for Subcontractors
Sample Inspection Forms
Standards and Conditions for Stormwater Pollution Prevention

Full Packet (All Forms) 

CSR permit issuance depends on:

  1. A properly completed CSR application
  2. A reviewed and approved SWPPP
  3. A copy of the IDNR NOI
  4. An issued IDNR General Permit #2 number
  5. A copy of the required SWPPP public notification

Construction activities may proceed once the CSR permit has been issued and the proper installation of required Best Management Practices (BMPs) have been inspected and approved by Neighborhood and Development Services or Public Works. 

For more information on the City of Iowa City Construction Site Runoff Program, contact: 

Building Inspection Services
410 E Washington, Iowa City IA 52240

City Government