Water quality remained strong throughout 30 March to 5 April, with dissolved oxygen consistently high across upstream, midstream and downstream locations. A clear daylight-driven oxygen cycle was observed, particularly at the midstream site, indicating strong biological activity rather than pollution stress. Downstream followed the same pattern with reduced amplitude, suggesting propagation of the midstream signal through the system. Weather—especially sunlight—was the primary driver of variability, while flow conditions played a secondary role. No overflow event occurred during the monitoring period.