Former Wake County Commissioner, Erv Portman, was interviewed in June 2019 by Charles Morris for the film, 400 Feet Down. In this interview, Portman shares how the RDU Airport Authority (RDUAA) invited a consultant from Washington, DC to explain why parks are incompatible uses with airports. When Portman asks the consultant about Lake Crabtree Park (the RDUAA has an agreement with Wake County for the park) and Umstead  StatePark being directly adjacent to RDU, the consultant responded by saying that recreational uses are not incompatible, parks are.  Our question is, what about a quarry?