Septic Systems
What's on this page |
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| Is Your Septic System the Right Size? |
| Where to Put a Septic System |
| Areas to Avoid |
| Maintaining a Septic System |
| Signs of Trouble |
Private septic systems is an important issue in Muskoka, as there are over 25,000 systems in the waterfront and rural areas of the District. A malfunctioning system can pollute both ground and surface water.
In Muskoka, private sewage systems are regulated by the Area Municipality. In other parts of the province, the local health unit or conservation authority may be responsible for upholding sewage system standards.
The Ontario Environmental Protection Act classifies most private sewage systems in Muskoka as Class 4. This type of system includes a septic tank, distribution box (optional) and a leaching or tile bed. All wastewater flows from the building to the septic tank where it settles and separates into sludge (bottom layer), scum (top layer) and liquid waste (middle layer). It is the liquid waste that is passed out through the distribution box and into the leaching bed. Where it flows through a network of pipes before entering the surrounding soils.
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Is Your Septic System the Right Size?
To determine the size of septic tank required on your property, you need to know the total number of bedrooms and the total number of plumbing fixture units.
After determining your number of bedrooms and household fixture units, use the chart as a guideline to determine the septic tank size you would require:
| Number of Bedrooms | Required tank size if less than 25 fixture units | Required tank size if more than 25 fixture units |
| 2 | 2700 litres / 600 gallons | 4000 litres / 900 gallons |
| 3 | 3600 litres / 800 gallons | 4500 litres / 1000 gallons |
| 4 | 4500 litres / 1000 gallons | 6000 litres / 1320 gallons |
| 5 | 4500 litres / 1000 gallons | 7000 litres / 1500 gallons |
| 6 | 5000 litres / 1100 gallons | 7500 litres / 1650 gallons |
| 7 | 6000 litres / 1320 gallons | 8000 litres / 1800 gallons |
Where to Put a Septic System
The Ministry of the Environment requires that your;
- Tank is 1.5 m from any building
- Tile bed is 5 m from any building
Both must be at least 15 m away from any surface water and drilled wells. If this is not possible or if you have a high water table on your property, the septic bed must be raised above ground using imported soils.
The bed should be more than 1.5 m above bedrock and at least 1.2 m above the water table.
Areas to Avoid
Soils that contain a lot of silt and clay do not allow water to seep through properly. These areas should be avoided for septic bed locations. Also avoid areas with a lot of vegetation.
Please see the Building Code Act (Section 8.1) for more building code regulations and septic system information.Maintaining Your Septic System
There are many things you can do to extend the life and efficiency of your septic system. For more details visit the Canadian Morgage and Housing Corporation website or review the Muskoka Watershed Council's Best Practices Brochure on Septic Systems.
Do you want to know more?Signs That Your Septic System is in Trouble:
- Drains or toilets are backed up or running slowly
- Sogginess in the ground around the septic tank or leaching bed
- Unusually green or thick grass growing in or around the leaching bed
- Significant algae growth in or around nearby lakes or waterbodies
- High levels of nitrates, bacteria or other contaminants in well water
There is a more complete list of signs that your septic system is in trouble in the Guide To Operating and Maintaining Your Septic System.
