Onsite Septic Systems

In areas where municipal sewer services are not available, homeowners must rely on sewage (septic) systems to meet their needs. Soil tests are made to determine if the soil conditions can accept and treat waste water. In fact, more than 1.2 million Michigan homes have onsite sewage systems.

For more information, please see the following sections:

• Water Transmission and COVID-19
• Sewage (Septic) Systems Application Instructions
• Septic Permit Application
• Land Evaluation Application Instructions 
• Land Evaluation (perc test for vacant land) to determine if land is buildable
• Existing System or Replacement Structure Evaluation Instructions
• Existing System or Replacement Structure Evaluation Application
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• You may not apply for well & septic permits online - print a paper application from the Applications page and submit to our office. 

Other Helpful Links:

• Septic Customer Information Sheet
• Septic Smart Homeowners
• Septic Installers
• Mortgage Evaluation Instructions
• Mortgage Evaluation Application
• Mortgage Evaluation-Water Tests Only
• Who is My Inspector?
• GIS Interactive Map
• Midland County Environmental Health Code
• Sewage Complaint
• Land Development Information for Subdivisions and Site Condominiums
• Address Assignment by Township: Find out who to contact to get an address assigned at your property.
• Sanford Lake Environmental Survey Summary
• Sanford Lake Environmental Survey Full Report

(Click the picture to view our 6-minute
video on septic system maintenance!)