Figure 2.15a.  Organic Nitrogen concentrations (mg/l) at three stations representing the Cape Fear River (NC11), the Black River (B210), and the Northeast Cape Fear River (NCF117), February 1996-June 2001.

Figure 2.15b.  Organic Nitrogen concentrations (mg/L) at three stations representing the upper (NAV), middle (M54), and lower (M18) Cape Fear Estuary, February 1996-June 2001.