On-Site Sewage Disposal
Septic Training 2019.pdf
Types of Services
- Site Evaluation for Suitability
- Permits – Evaluation – Consultation
- Mortgage Evaluations
The on site sewage disposal program consists of four basic parts:
- Site evaluation
- Construction permit
- Final inspection
Site evaluations determine soils ability to accept sewage effluent by determining soil type, seasonal high water table, lot size and topography.
A construction permit is issued based on soil type, other limiting factors, the size of structure and potential water usage. It includes size of septic tank(s), secondary disposal system(s), specific location if necessary and any fill which may be required to overcome soil limitations. Once a sewage system is installed but before it is covered, a final inspection is conducted to assure the system is installed in compliance with the permit and provide a diagram of the systems size and location.
Evaluations of existing systems are conducted to determine the condition of the sewage system usually at the request of a lending institution or home buyer prior to issuing a mortgage on a property. Consultations are provided for on site sewage disposal systems during all phases of the program.
The Allegan County Water and Sewage Regulations govern sewage disposal systems for one and two family residential dwellings. Sewage systems for commercial establishments with flows up to 10,000 gallons per day are covered by the Michigan Criteria for Subsurface Sewage Disposal. Sizing is covered by the Michigan Department of Environmental Quality. Construction permits issued for commercial systems are issued based on the requirements of the Michigan Criteria for Subsurface Sewage Disposal.