Sewage System Maintenance Program

The Province of Ontario requires all properties with septic systems located within 100 meters of the Lake Simcoe shoreline, water courses within the Lake Simcoe watershed, and near a York Region drinking water well, must have a septic system maintenance inspection completed every five years. A properly maintained septic system ensures that drinking water sources (public and private wells) and the environment are not polluted. A grant may be available through the Lake Simcoe Region Conservation Authority.

East Gwillimbury (EG)'s Sewage System Maintenance Inspection Program requires residents with subject properties to hire a qualified person to complete the inspections and to carry out any necessary repairs. The inspection looks at the condition and location of your septic system. This includes checking:

• Required setbacks from wells, streams, and other water bodies.
• The location of septic system components.
• Signs that the system may not be working properly.
• Site information to support future maintenance inspections.

The age of the septic system is not the main factor during an inspection. Many older systems continue to operate properly. Inspections are designed to be non-invasive and usually do not disturb the septic system or surrounding property. If any safety concerns or deficiencies are identified, Town staff will explain the next steps needed to bring the system into compliance.

Apply for a septic tank (building permit) Request a search for a septic plan

Maintenance Reminders

Regular maintenance helps protect your family's health, your septic system, and the environment.

Pump Your Septic Tank

Have your septic tank pumped regularly. For a family of four, this is typically every two to five years, depending on water use. When the tank is pumped, ask your contractor to inspect the tank and leaching bed. Finding problems early can help prevent costly repairs.

Keep Maintenance Records

Keep records of all septic system maintenance, including:

• Pumping
• Inspections
• Repairs
• Permits

These records are helpful if a problem occurs or if you decide to sell your property.

Use Your System Properly

Help your septic system work efficiently by:

• Avoiding fats, oils, and grease going down the drains, which are slow to break down.
• Limiting the use of bleach, which can kill the beneficial bacteria your system needs.
• Avoiding septic additives or stimulators, as they are generally unnecessary for a properly maintained system.

Proper use and regular maintenance can help extend the life of your septic system.

Protect Your Septic System

To prevent damage:

• Do not drive or park vehicles on your leaching bed. This can compact the soil and damage underground pipes.
• Do not plant trees or shrubs too close to the septic tank or leaching bed. Tree roots, especially from willows, silver maples, and poplars, can block pipes and cause sewage backups.
• Do not change your property's drainage. The system is designed to manage surface water and allow wastewater to filter properly through the soil.
• Do not cover the leaching bed with plastic, pavers, or other landscaping materials. Air and water movement are essential for the system to work properly.
• Do not build a driveway or deck over your septic tank. The tank must remain accessible for inspections and pumping.

The documents on this page are available in other formats, please contact the Building Branch to request.