SKOKIE — Skokie will charge a permit fee of $50 to inspect new installations of back-flow prevention plumbing devices in homes or businesses.

The fee is part of the village's stepped up program to make sure that the plumbing devices are installed where they should be and installed properly, which is a state law.

Without such a device properly installed, contaminants can make their way into the village's water system should a plumbing back-flow occur, village officials say.(Skokie steps up back-flow plumbing device program)