Fourteen monitoring stations have been established within the study area from which to assess changes in conditions from pre-project conditions (Table 4.1). These stations, labeled A through N, are located within the SLD (A and B), Mud Slough (C, D, E, and I), Salt Slough and the wetland channels (F, J, K, L, and M), and the San Joaquin River (G, H, and N).