Water Information Reporting

Copyright © Government of Western Australia
Information supplied by the Department of Water and Environmental Regulation is protected by the Copyright Act 1968. That copyright belongs to the State of Western Australia. Apart from any fair dealing for the purpose of private study, research, criticism or review, as permitted under the Copyright Act 1968, no part may be reproduced or reused for any purpose without the written permission of the Department of Water and Environmental Regulation. Please click on the Copyright link for full details.

Disclaimer / limitation of liability
The information contained herein is provided by the Department of Water and Environmental Regulation in good faith as a public service. However, the Department does not guarantee the accuracy of this information, and it is the responsibility of recipients to make their own enquiries as to its accuracy, currency and appropriateness. Telemetered data is provisional only and has not been verified for accuracy. If any aspect of this information is of significance to you, you should discuss your particular circumstances with the Department. Please click on the Disclaimer link for full details.

Should you require further information or technical assistance, please contact one of our water information officers.


Total Annual Discharge report

    Department of Water and Environmental Regulation HYANN V83  Output 14/04/2021

    Site     804001          Isdell River - Dales Yard
    Variable 151.00          Stream Discharge Volume in Megalitres

    Year   Annual              Days            Rank
           Total               Missing
           (Megalitres)
    -----------------------------------------------
    1967            0.0           292            55
    1968         362100            28            25
    1969         374700            36            22
    1970           3550            36            53
    1971         118800                          43
    1972         141900            23            41
    1973         232700                          34
    1974         828100                           5
    1975          35390                          49
    1976         272000            53            31
    1977          25570            18            50
    1978         226000                          35
    1979         183000                          37
    1980         297900            78            28
    1981           1085           276            54
    1982         394300           107            20
    1983         548300            23            11
    1984         630200             1             9
    1985          58510                          48
    1986         472200            61            14
    1987         291200            23            29
    1988          87570                          44
    1989         233500                          33
    1990          68040                          47
    1991         351200                          27
    1992          21750                          51
    1993         540400                          12
    1994         131900                          42
    1995         941600                           2
    1996         159000                          39
    1997         640300                           8
    1998         211600                          36
    1999         375100                          21
    2000         926100                           4
    2001         421900                          18
    2002         358100                          26
    2003          86770                          45
    2004         457800                          15
    2005          85640                          46
    2006         725400                           6
    2007         444900                          16
    2008         424600                          17
    2009         642100                           7
    2010         143200                          40
    2011        1825000                           1
    2012         395100                          19
    2013         167400                          38
    2014         572700                          10
    2015         289900                          30
    2016         256900                          32
    2017         933700                           3
    2018         366300                          24
    2019          13440                          52
    2020         373300                          23
    2021         510200           263            13

    Total      19680000          1318
    Minimum         0.0
    Maximum     1825000
    Mean         357800
    Median       297900