Wastewater treatment is an essential part of owning a home or business. This website was designed to provide helpful information about onsite wastewater treatment, regulations, maintenance, and construction. Please contact Johnson County Public Health if you have any additional questions at 319-356-6040.

Forms and permit applications

Construction Permit Application
Operation Permit Application
DNR Notice of Intent
Commercial/Industrial Use Permit Application
Permit Extension Application
Waiver Request Form
Public Health Zoning Application
Temporary Holding Tank Agreement

Private Sewage Disposal Systems Regulations


Topics of interest

Homeowner's Guide to Onsite Systems
The Care and Feeding of Your Septic System

Johnson County Public Health wastewater guides

Problems with your wastewater system: A guide to solving common problems
Procedure for applying to construct a new residential wastewater system
Procedure for applying to construct a new commercial wastewater system

Financial assistance

The Onsite Wastewater Systems Assistance Program (OSWAP): This program offers low interest loans to assist with the cost of installing an onsite wastewater system for an existing home.
Applicant Approval Form
Homeowner Instructions

Frequently Asked Questions About the State Revolving Fund