Streamflow Monitoring required by CCAA. In concert with two USGS real-time streamflow gages located at Management Segments C and D (Figure 1), DNRC continued to operate and maintain four real-time streamflow gages located at Management Segments A, B, and E as well as a basin inflow gage. In addition, DNRC continuously monitored flow in at least one tributary within each Management Segment and six key irrigation ditches in 2023.