COLUMBIA, S.C. — In the Midlands and throughout the nation, cities are facing aging water systems. A majority of the water systems in the ground now were put in place in the late 1940′s and 50′s.  “PVC pipe or plastic piping and ductile line pipe,” says Josh Rabon, managing partner for Civil Engineering of Columbia. “Those are the two main types of pipes that are installed now.” “A lot of the old pipe material the galvanized, the cast iron the concrete, those aren’t put in now,” says Rabon. “Those are the ones that were put in so long ago.” “The PVC is probably a 50-70 year lifespan typically,” says Rabon. “The ductile probably pushes a 100 year lifespan. So, the pipes in the ground now are definitely have reached the end of their lifespan, if it hasn’t already passed.” Many cities around the state are replacing those old pipes with new ones. However, cities can only go so far. RELATED: Water concerns continue to plague the City of Denmark after controversial chemical taken out of system For example, your city or municipality controls water lines throughout the city, but after the wa...