Should I avoid building on my drainfield?

Do not build any structures in or on your drainfield area without checking with a local designer or permitting authority. It is not recommended to plant trees, shrubs, or vegetable gardens on the drainfield. Tree and shrub roots can ensnarl and damage drainfield pipes. Vegetables can potentially be exposed to sewage effluent and unsafe to consume. Native grasses and ground covers are the most appropriate planting over your drainfield.