During heavy rainfall, some ponding on the roads and higher water in greenbelts is normal. The stormwater system will catch up and drain the water where it needs to go. Please note, it can take up to 2 days for water levels to return to normal.
Some important things homeowners can do to help reduce the risk of basement flooding during a storm are:
- Direct water flow from downspouts at least 1.5 metres from the basement wall.
- Seal any cracks between your house and driveway.
- Make sure your sump pump is working properly. Check it by slowly pouring water into the sump tank. Watch for the "float" to rise and trigger the pump. Once the pump has started, the water level will quickly lower and the float will shut off the pump.
- If you have a rain barrel, make sure the overflow is directed away from your house.
- Grade and landscape to make sure there is a positive slope away from the wall for at least the first 1.5 metres (5 feet). The ground should drop a minimum of 75mm (3 inches) in this area.
- Use landscaping to disperse the water more evenly.
- Aerate your lawn, especially if it is hard and compacted, to help water soak into the ground.
- If you live beside a stormwater pond, leave natural plants along the shoreline. The plants help to slow the flow of water, which helps prevent flooding downstream.