Virtually all iron filtration systems sold as a whole house filter have either carbon or birm sand as the filter media to remove the iron. Carbon filters have a life span of up to 5 years and require frequent chemical or air injection to work properly.
For similarly named airports, see Newport State Airport (disambiguation). Newport State Airport (IATA: NPT, ICAO: KUUU, FAA LID: UUU) is a state owned, public use airport in Newport County, Rhode Island, United States. It serves the city of Newport and is located two nautical miles (4 km) northeast of its central business district.
I would also suggest you look into Newport News-Williamsburg International Airport. It is 20 minutes from Williamsburg and is located right next to Interstate 64. AirTran Airways flies non-stop between Newport News and Atlanta, LaGuardia and Boston with attractive fares and good service.