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 Monthly Discharge report

Department of Water and Environmental Regulation                                                     HYMONTH V128  Output 02/02/2023

Site      604053          Kent River - Styx Junction                                                                    Site  604053
VarFrom   10.00           Stage - SL in Metres
VarTo     151.00          Total Stream Discharge Volume in Megalitres
                          Figures are for period ending 24:00
                                                                                                          Mean   Annual  Missing
Year     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec   Monthly    Total  Days    Yr

1956   [   ]   [   ]   [   ]   [59.5]  763.2$ 6339  #27453  "17276  " 4596  " 5751  #  837.0#  315.2#  [7043  ]  [63390]  109  1956
1957    43.1&   10.8&   28.1&   76.3&  208.0# 8063  #12168  "14464  "10148  # 1427  #  219.1#   33.3&   3907  &   46888&    0  1957
1958    10.3&    9.8&    8.4&   24.1&  319.1$  553.3#12368  $14860  $13523  $ 6947  $  536.4$  104.8#   4105  &   49265&    0  1958
1959    20.3&   10.7&    8.1&   36.1&   55.5$  264.5#  446.9# 1878  # 4712  # 2998  # 1342  #  388.9#   1013  &   12160&    0  1959
1960   209.6$   18.6&  100.8&  333.3# 1737  # 4500  "53234  #38815  "14812  " 2157  #  300.6#  173.7$   9699  &  116391&    0  1960

1961    88.0$   27.1&   24.4& 1712  #  998.7# 5345  #46802  "41262  "23807  " 3165  #  468.3#  203.3$  10325  &  123904&    0  1961
1962    19.0&   11.7&   20.5&   14.4&  113.7& 1101  # 7048  #33461  "17130  "16313  "  931.7$  158.7#   6360  &   76323&    0  1962
1963    84.1&   50.9$   41.1$   64.4& 6837  $ 6361  "43052  "49270  #29022  " 3291  # 1361  #  129.5#  11630  &  139564&    0  1963
1964    79.7$   55.1$   44.5$  128.1$  203.5# 1375  #41369  "71596  & 9644  "38911  " 1927  #  568.0#  13825  &  165901&    0  1964
1965   193.7#  101.6$  167.5$  187.2#  507.1# 2929  " 8572  "13744  "18013  "35730  "26440  " 6644  #   9436  $  113229$    0  1965

1966   375.3#   99.3#  102.8#  213.6#  405.5# 3294  #12138  "11262  "24280  "11755  " 2553  #  317.9#   5566  #   66795#    0  1966
1967   132.2#   60.3$  125.2$  134.8$  651.6# 5051  #61776  "69997  "18832  " 9037  #  529.9#  213.2#  13878  $  166541$    0  1967
1968   181.9&  142.6&  176.4&  291.7$  533.2$ 2729  $ 7898  #27122  "37132  "10084  # 1501  $  299.0&   7341  &   88092&    0  1968
1969   122.0&   58.4&   68.3&  121.8&  252.2&  914.4$ 4445  $ 5094  # 3634  $  783.9$ 3296  $  116.2&   1576  &   18907&    0  1969
1970    26.3&   42.5&   29.4&  130.8&  322.6&10901  $19622  "19686  "33238  "17276  # 1257  $  240.4&   8564  &  102772&    0  1970

1971    81.2&   60.9&   47.2&   97.5& 2202  & 3124  # 3635  # 8740  "19182  "28316  "18982  " 2333  $   7234  &   86803&    0  1971
1972   309.5&   70.3&   58.2&  170.8&  220.1&  579.8& 4058  $14330  " 4895  # 3799  $  349.9&  172.5&   2418  &   29012&    0  1972
1973    92.3&   26.7&   24.1&  103.8&  278.9& 2036  $11475  #31314  "25454  "18676  "17851  #  917.8$   9021  &  108249&    0  1973
1974   150.0&  123.5&   79.0&  181.0&  620.3& 2520  $17436  "27365  " 3238  " 3073  $ 1234  $  223.1&   4687  &   56242&    0  1974
1975    55.3&   28.1&   38.0&  239.6& 1321  & 2562  $17133  "23541  " 9643  " 6405  " 1980  $  232.1&   5265  &   63177&    0  1975

1976   240.1&   70.7&  234.7&  642.4& 1501  $ 5689  $ 9193  "15114  " 7781  "13980  " 7737  "  963.6$   5262  &   63145&    0  1976
1977   138.8&   57.0&   63.2&  129.2& 1625  & 5755  "11175  "39807  " 9203  "23703  " 8940  "  659.0$   8438  &  101255&    0  1977
1978   229.0&   74.2&   64.7&  111.6$ 1002  $17515  "88580  "23089  "35951  "21700  " 1205  #  525.8$  15837  &  190049&    0  1978
1979   217.8$  133.2$  194.9$  203.0$  839.6$ 2931  "15769  "17857  "14363  "12190  " 6987  "  481.1$   6014  $   72166$    0  1979
1980   132.9$   88.6$   64.8#  248.5#  372.5# 1188  #10445  "16376  " 6059  "12801  " 2880  !  510.3#   4264  !   51167!    0  1980

1981    93.7#   58.0#   73.3#  158.7#  738.3# 8558  "22655  "66957   10466  " 4925  #  963.0#  504.7#   9679  #  116151#    0  1981
1982  5824  #  627.0#  521.5#  328.0#  908.9# 4658  #10749  " 8055  " 4829  " 1833  #  429.1#  269.3#   3253  #   39033#    0  1982
1983    57.4#   60.6#   33.3$   51.9#   87.2#  647.6# 4511  " 9115  "25415  " 2446  #  633.1#  202.2#   3605  $   43261$    0  1983
1984    81.0$   26.1$   41.1$   39.6$  354.7# 3097  "12191  "38491  "36155  " 3245  ! 8356  !  734.7#   8568  !  102812!    0  1984
1985   211.2#   93.1#   48.4#  620.2#  356.6# 1021  # 3348  #17273  "14222  " 3840  " 1004  #  326.0#   3530  #   42364#    0  1985

1986    84.7#   52.0#   64.5#   56.2#  163.1#  345.4# 3374  # 6936  " 8992  " 3041  #  504.2#  131.7#   1979  #   23746#    0  1986
1987    39.0$   20.2$   40.5$  372.5# 1917  # 1042  # 3873  # 6985  " 2331  # 1209  # 1807  #  401.2#   1670  $   20037$    0  1987
1988    81.1#   24.1$   30.4$   36.3$ 9683  #64789  "64743   40067   37192  "24634  " 2432  #  450.6#  20347  $  244163$    0  1988
1989   595.2#  271.1#  209.3#  352.5# 1015  # 2690  #17344  "22522  " 9740  "16873  " 3524  #  358.2#   6291  #   75493#    0  1989
1990   119.0#  113.9#  110.2#  419.8# 1061  # 3733  #37759  "20573  " 7952  "11410  " 3899  #  359.8#   7292  #   87510#    0  1990



                                        ------------------ Notes -------------------
                                        All recorded data is continuous and reliable
                                        except where the following tags are used...
                                        ! ... Not reviewed / Quality not known
                                        " ... Relative Uncertainty +/-10%
                                        # ... Relative Uncertainty +/-15%
                                        $ ... Relative Uncertainty +/-20%
                                        & ... Relative Uncertainty +/-30%
                                        [ ... Not Available

Department of Water and Environmental Regulation                                                     HYMONTH V128  Output 02/02/2023

Site      604053          Kent River - Styx Junction                                                                    Site  604053
VarFrom   10.00           Stage - SL in Metres
VarTo     151.00          Total Stream Discharge Volume in Megalitres
                          Figures are for period ending 24:00
                                                                                                          Mean   Annual  Missing
Year     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec   Monthly    Total  Days    Yr

1991   119.8#   43.5#   82.4#   88.8#  223.0# 2615  #29378  "40013  "23623  " 3002  # 3844  #  353.7#   8615  #  103386#    0  1991
1992   114.3#   62.0#   57.9#   59.9#  431.3# 1746  # 7784  "22436  "50884   17131  "16772  # 1613  #   9924  #  119092#    0  1992
1993   194.1#   79.7#  457.8#  289.2# 2004  # 4459  "19185  "32500  "23373  "11976  " 2005  #  332.3#   8071  #   96855#    0  1993
1994   108.2#   56.5#   43.4#   59.1#  806.0# 5425  " 8153  "14227  " 7248  " 5878  "  684.2#  180.8#   3572  #   42869#    0  1994
1995    54.7#   39.4#   59.7#   56.0#  352.2# 2190  #12528  "10796  "14428  " 3537  # 2177  #  738.9#   3913  #   46957#    0  1995

1996   345.6#   54.3#   41.8#   49.4#   82.8#  572.5#15862  "29086   42351  "26085  " 1665  # 1724  #   9827  #  117919#    0  1996
1997   140.8#   73.7#   63.3#   52.4#  185.1# 1766  # 4620  #10182  "29329  " 2946  #  482.3#  171.7#   4168  #   50012#    0  1997
1998    35.5$   21.3$   74.7$  180.1#  634.3# 2605  # 6622  "17579  "47946    8703  "  667.6#  311.0#   7115  $   85381$    0  1998
1999    81.0#   34.3$   39.0$   30.4$  351.2$ 7000  #18925  "17095  "28631  "14070  " 1366  #  293.9#   7326  $   87916$    0  1999
2000   104.4#   86.5#  261.8#  168.0#  432.5# 1304  #12584  "20118  "15690  " 1203  #  345.7#  116.7#   4368  #   52415#    0  2000

2001    59.9#   31.1$   28.1$   35.2$  176.1# 1688  # 1227  # 4265  # 6362  " 4853  #  756.9# 5032  #   2043  $   24514$    0  2001
2002   167.1#   39.0$   39.8$ 2985  $  786.8# 1460  # 5486  # 8469  "10547  " 2810  # 1294  #  120.8#   2850  $   34203$    0  2002
2003    37.3$   53.6$   39.2$  132.8#  242.7# 1027  # 7084  "39221  "24176  "20703  " 3918  #  501.7#   8095  $   97136$    0  2003
2004   122.7#  128.8#  114.6#   73.2#  231.4# 2207  # 6104  "15315  " 7196  "  875.3#  304.9#   90.4#   2730  #   32763#    0  2004
2005    24.1$   21.1$   31.1$12927  #10952  #33069  "17175  "20678  "21875  "13848  " 2227  #  575.4#  11117  $  133403$    0  2005

2006   151.4#   79.3#   91.3$  171.8#  296.6#  368.6# 1679  # 2567  " 1731  #  713.7#  211.2#   43.7$    675.3$  8104  $    0  2006
2007    28.3$   15.9$   19.5$   45.1$  132.5#  190.8# 1064  # 4066  " 8018  " 1584  #  605.0#  746.3#   1376  $ 16515  $    0  2007
2008    79.0$   22.8$   24.1$   76.0$  280.6# 1207  #15606  "11918  # 4844  # 3390  #15184  # 5019  #   4804  $ 57650  $    0  2008
2009   186.1#   41.9#   51.8$   46.8#  200.7# 5349  #32417  "18995  "30518    6707  #  751.4#  182.9#   7954  $ 95447  $    0  2009
2010    45.2#   25.6$   27.5$   51.6#   83.7#  265.3# 1300  # 1845  # 1563  #  348.9#  225.1#  169.0#    495.8$  5950  $    0  2010

2011    49.5$   55.9$   22.2$   46.1$  217.0#  525.1# 6449  #17224  " 7704  "18827  "11969  #  580.9#   5306  $   63670$    0  2011
2012   178.3#   29.9$   22.4$   24.4$   77.2# 1855  # 3333  # 4475  "10559  " 2288  #  792.0#  339.0#   1998  $   23973$    0  2012
2013    36.2$   31.4$   39.9$   49.4$  362.7# 1129  # 3187  #14530  "42905  " 9252  "  780.5#  176.4#   6040  $   72479$    0  2013
2014    34.7$   24.2$   25.6$   33.8$  114.3#  295.8# 6503  # 2374  # 4690  " 2847  #  676.9#  106.4#   1477  $   17727$    0  2014
2015    18.4&   16.0&   25.8$  282.4$  241.8#  793.7# 1736  #11633  " 6440  #  571.1#  186.1#   93.1$   1836  &   22037&    0  2015

2016    92.9$  114.1$   37.3$  118.3$ 1149  # 8168  "18636  "41296   37313   15853  "  871.1#  149.2#  10317  $123798  $    0  2016
2017    51.6$   40.0$   49.9$   38.8#   75.6#   98.0# 1239  #11891  "11852  # 7155  #  403.2#  114.3#   2751  $ 33009  $    0  2017
2018    28.4$   19.5$   28.4$   24.5$   44.5$   89.9#  656.3#11194  " 6078  #  899.8#  195.7#   68.2$   1611  $ 19327  $    0  2018
2019    22.1$   19.2$   23.1$   36.6$   47.1$  282.9$  717.9# 1818  # 2575  #  455.9#  368.9#   30.4$    533.1$  6397  $    0  2019
2020    22.5$   13.5$   19.6$   22.1$   78.6$  280.8# 1002  #11140  #11943  " 1984  # 1334  #  201.9#   2337  $ 28042  $    0  2020



                                        ------------------ Notes -------------------
                                        All recorded data is continuous and reliable
                                        except where the following tags are used...
                                        ! ... Not reviewed / Quality not known
                                        " ... Relative Uncertainty +/-10%
                                        # ... Relative Uncertainty +/-15%
                                        $ ... Relative Uncertainty +/-20%
                                        & ... Relative Uncertainty +/-30%
                                        [ ... Not Available







Department of Water and Environmental Regulation                                                     HYMONTH V128  Output 02/02/2023

Site      604053          Kent River - Styx Junction                                                                    Site  604053
VarFrom   10.00           Stage - SL in Metres
VarTo     151.00          Total Stream Discharge Volume in Megalitres
                          Figures are for period ending 24:00
                                                                                                          Mean   Annual  Missing
Year     Jan     Feb     Mar     Apr     May     Jun     Jul     Aug     Sep     Oct     Nov     Dec   Monthly    Total  Days    Yr

2021    25.8$   35.2$   24.0$   66.9$ 1265  #16488  "40266  "42753  "23307  " 9476  " 5288  #  594.4#  11632  $  139589$    0  2021
2022    60.0#   27.8$   33.4$   75.6#  223.0#  792.4# 1540  #11136  " 2098  # 3302  # 6726  "  402.8#   2201  $   26417$    0  2022
2023    39.6$  [   ]   [   ]   [   ]   [   ]   [   ]   [   ]   [   ]   [   ]   [   ]   [   ]   [   ]     [39.6]     [40]  334  2023


Mean   198.2&   63.9&   75.6& [395.4]  939.7& 4500  &15491  $21002  &16767  $ 9060  ! 3288  !  624.4&  [5971  ][71337  ]       Mean
Med.    84.7&   47.2&   42.6&  [97.5]  354.7& 2190  &10445  $17095  &11943  $ 5751  ! 1257  !  311.0&                          Med.
 Max  5824  &  627.0&  521.5&[12927 ]10952  &64789  &88580  $71596  &50884  $38911  !26440  ! 6644  & [20347  ][244163 ]        Max
 Min    10.3&    9.8&    8.1&  [14.4]   44.5&   89.9&  446.9$ 1818  & 1563  $  348.9!  186.1!   30.4&    [39.6]   [39.6]        Min
Total  13278&   4216&   4987& [26489]  62958& 301516&1037887$1407128&1123380$ 607003! 220272!  41836&  [406043][4850949]  443  Total
  OK    100%    100%    100%     99%    100%    100%    100%    100%    100%    100%    100%    100%       100%     100%         OK
 Cnt      67      66      66      67      67      67      67      67      67      67      67      67        68       68         Cnt

                                        ------------------ Notes -------------------
                                        All recorded data is continuous and reliable
                                        except where the following tags are used...
                                        ! ... Not reviewed / Quality not known
                                        " ... Relative Uncertainty +/-10%
                                        # ... Relative Uncertainty +/-15%
                                        $ ... Relative Uncertainty +/-20%
                                        & ... Relative Uncertainty +/-30%
                                        [ ... Not Available