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Total Annual Discharge report

    Department of Water and Environmental Regulation HYANN V88  Output 14/11/2025

    Site     613027          South Coolup Main Drain - Yackaboon
    Variable 151.00          Stream Discharge Volume in Megalitres

    Year   Annual              Days            Rank
           Total               Missing
           (Megalitres)
    -----------------------------------------------
    1990           2650           138            19
    1991           7770                           2
    1992           8318                           1
    1993           3338                          12
    1994           5471                           5
    1995           5084                           7
    1996           7576                           3
    1997           4053                           9
    1998           2733                          17
    1999            3.5           291            31
    2000            0.0           366            36
    2001            0.0           365            32
    2002            0.0           365            33
    2003            0.0           365            34
    2004            0.0           366            35
    2005           5516           161             4
    2006          268.0                          29
    2007           2952                          13
    2008           4456                           8
    2009           2748                          16
    2010          396.1                          28
    2011           2128                          20
    2012           1459                          25
    2013           3642                          10
    2014           2115                          21
    2015          226.9                          30
    2016           1591                          23
    2017           2808                          14
    2018           5114                           6
    2019           1529                          24
    2020          888.4                          27
    2021           3362                          11
    2022           2760                          15
    2023           1330                          26
    2024           2700                          18
    2025           1742            49            22

    Total         96730          2466
    Minimum         3.5
    Maximum        8318
    Mean           3120
    Median         2748