Supporting Technical Assessments

Table 3. WKP gauging and reference summary for logger locations for 14-15 December 2020. Location Start time (NZST) End time (NZST) Flow (L/s) Stage readings Discharge uncertainty (ISO) 1 Comments General Weather condition fine and settled over the period of gaugings Water samples and loggers downloaded. Flow Tracker Serial No P3911 T Stream West 14 Dec 2020 9:15 56.4 - - Measured by Hydro Logic using an Ott meter T Stream East 14 Dec 2020 7:20 74.2 - - Measured by Hydro Logic using an Ott meter WKP3 14 Dec 2020 08:27 09:03 95.2 top left most tip of logger warratah -577mm Short warratah -75mm 2.9% Stage reading 07:45 Gauged 27m ds logger and approx. 50m us foot bridge. Gauged approx. same location as previous gauging. Gauging fair due to velocity angles and variations in velocity across the stream due to upstream boulders. WKP2 14 Dec 2020 10:10 10:41 120.9 from mid top of warratah (-630mm) short warratah (-107mm) 2.7% Stage readings at 10:00 Gauged 20m us logger, same place as last visit. Gauging good No change in WL after gauging WKP1 15 Dec 2020 09:10 09:45 164.0 Bank long warratah -917mm Bank short warratah -141 River warratah -140 Logger warratah -95 2.8% Stage readings 09:00 Gauged 330m ds logger, at lower end of pool (15m us pool outlet). Good FlowTracker gauging. Site changed slightly from last visit with pampas grass in water immediately upstream left bank from gauging section Notes 1. Uncertainty determined by Flowtracker software (“ISO Stats”).

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