As an older community dating back to 1869, Lombard still has some sewers that carry sanitary waste, as well as rainfall runoff, known as “combined” sewers. As streets are reconstructed and as the budget allows, these sewers are replaced with separate storm and sanitary sewers. Roughly one third of Lombard has combined sewers that continue to drain into a downstream combined sewer.
When the capacity of a sanitary or combined sewer is exceeded, water levels may overflow to the ground level and result in a basement backup. A check valve or overhead sewer system (required in all new construction) may prevent backups.
To help assist homeowners, the Village provides an Overhead Sewer Grant Program, which has assisted nearly 400 residents in helping to protect themselves and their homes from sewer backups. Additionally, the Village’s Clear Water Disconnect Grant has contributed to dozens of homes removing sump pumps and downspouts from sanitary sewers, which helps to not overload the system, resulting in reduction of sewer backups.