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 20/06/2025

Site      708001          Marillana Creek - Flat Rocks                                                                  Site  708001
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

1967   [   ]   [   ]   [   ]   [   ]   [   ]   [   ]   [   ]   [0.00]   0.00"   0.00"  57.76"  16.82"   [14.92]  [74.59]  227  1967
1968  894.0 "3099   " 169.6 "   2.29"   3.53" 716.7 " [30.71]  [1.48]  12.17"   5.39"   0.00"   0.00"  [411.3 ][4935   ]   32  1968
1969    0.00"1187   "   9.69"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"    99.69" 1196   "    0  1969
1970   [0.00]  [0.00]   0.00"   0.00"  34.08"  13.32"   2.51"   0.52"   1.24"   0.00"   0.00"   0.00"    [4.31]  [51.68]   22  1970

1971     317"  18395"    104"      6"      3"   4805"     10"      5"      2"      1"      0"      0"     1971"   23648"    0  1971
1972       0"     58"      1"      0"      0"      0"      0"     39"     79"      8"      0"   1993"      181"    2177"    0  1972
1973   42337"    179"   6365"    154"    142"   [172]  [   ]   [   ]      [4]     14"      0"     30"    [4940]  [49396]   90  1973
1974    3951"     91"    544"    623"     37"     34"     25"     33"     10"      3"      0"     [0]     [446]   [5352]   11  1974
1975      [0]     66"    [39]    [44]     27"      9"      0"      0"      0"      0"      0" 144287"   [12039] [144472]   11  1975

1976    58.3"    9.6"10922  "   55.3"   48.1"   36.4"   16.0"   12.6"    9.4"    5.0"    0.4"    0.0"    931.1" 11173  "    0  1976
1977     0.0"    0.0"   45.7!    7.0"    0.2"    5.1"   34.5"   47.6!    0.0!    0.0!    0.0"    1.6!     11.8!   141.7!    0  1977
1978  1066  ! 4218  !    9.4!    5.9!    0.7!    0.0!   [0.7]  [   ]   [   ]    [0.7]    0.0"    0.0"   [530.1] [5301  ]   90  1978
1979     0.0"    9.2" 3227  !   15.8"   12.2"    8.7"    3.8"    4.5"    0.6"    0.0"    0.0"    0.0"    273.5!  3282  !    0  1979
1980    [0.0] [225.1]   67.1"  485.3"   37.0"   27.6"   31.6"   23.7"    3.5!    0.0!    0.0"    0.0"    [75.1]  [900.9]   36  1980

1981  1410  "  [64.2]  [90.2]   28.0"   15.1"   21.6"   17.7"   10.2"    3.0"    0.0"    0.0"    6.9"   [138.9] [1667  ]   31  1981
1982   758.1! 7546  !   50.1"  129.9!   22.4"   29.6"   25.2"   25.1"   16.3"    2.9"    0.0"    0.0"    717.1!  8605  !    0  1982
1983     0.0"  522.1!   32.2" 1113  !    7.7"    1.6"    0.5"    0.0"    0.0"    0.0"    0.0"  130.7"    150.6!  1807  !    0  1983
1984     3.3"    0.0"24700  !  674.9$  201.2"   34.5" 1841  $   37.3"   15.2"    3.4"    0.0"  206.0$   2310  ! 27717  !    0  1984
1985   927.1$ 3424  $  431.3$    3.9"    6.3"    5.1"    2.1"    0.6"    0.0"    0.0"    0.0"    0.0"    400.0$  4800  $    0  1985

1986     0.0"    4.8"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"  195.9"     16.7"   200.8"    0  1986
1987   685.8$ 1096  $    2.3"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.3"    148.7$  1785  $    0  1987
1988  2705  $10350  $ 1671  $   97.5" 3118  $   30.1"   38.0"   50.0"   30.7"    0.1"    0.0" 2680  $   1731  $ 20770  $    0  1988
1989    38.8"  274.2"    8.5"  697.0$   32.8"   70.9"   17.5"    0.8"    0.1"    0.0"    0.0"    0.0"     95.0$  1141  $    0  1989
1990  3140  $   12.1"    1.6"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    262.8$  3153  $    0  1990

1991     5.4"    0.0"    0.0"    0.0"    0.0"   19.6"   13.0"    4.6"    0.0"    0.0"    0.0"    0.0"      3.6"    42.6"    0  1991
1992  1046  $    1.0"    6.9"   15.3"    8.9"    7.0"    0.1"    8.6"    1.0"    0.0"    0.0"    0.0"     91.2$  1094  $    0  1992
1993   589.4$ 2131  $    0.4"    0.0"    2.3"  519.5$   18.1"   13.7"    1.5"    0.0"    0.0"  419.2$    308.0$  3696  $    0  1993
1994     0.0"  555.3"    8.5"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    0.0" 3915  $    373.2$  4479  $    0  1994
1995    27.1"16595  $  153.5$   13.9$    8.3$ 3244  $  166.5$    8.8$    2.6"    0.0"    0.0"    5.8"   1685  $ 20225  $    0  1995

1996     0.1"    0.0"    0.0"  113.8"    2.9"    2.1"    2.7"    0.0"    0.0"    0.0"    0.0"    0.2"     10.1"   121.8"    0  1996
1997 11941  $ 8043  $   57.2"   34.6"   74.8"   25.0"   27.4"   26.8"   19.9"    5.8"    0.0"    0.0"   1688  $ 20256  $    0  1997
1998     0.0"    0.0"    0.0"    0.0"    0.0"    0.0"    5.9"    0.5"    0.0"    0.0"    0.0" 1704  $    142.5$  1710  $    0  1998
1999   634.9$ 1398  $ 2291  $  338.9"   36.7"   26.2"   20.1"   11.5"    6.0"    2.0"    0.0"19629  $   2033  $ 24395  $    0  1999
2000  3854  $ 3037  $10738  $ 1018  "  259.0"  162.3"  144.0"  136.3"  108.4"   99.7"  138.3"   98.4"   1649  $ 19793  $    0  2000

2001  888.8 $1196   $ 104.6 "  72.57"  98.60"  94.87"  97.70"  84.14"  71.51"  59.86"  39.68"  25.09"   236.1 $ 2833   $    0  2001



                                        ------------------ 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%
                                        [ ... Not Available

Department of Water and Environmental Regulation                                                     HYMONTH V128  Output 20/06/2025

Site      708001          Marillana Creek - Flat Rocks                                                                  Site  708001
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

2002    16.0" 1948  $  159.3"   51.9"   49.5"   52.9"   55.5"   51.4"   43.0"   33.5"   24.3" 4334  $    568.3$  6819  $    0  2002
2003 29537  $  491.4$   50.1"   56.9"   47.4"   44.0"   42.2"   41.2"   30.3"   21.6"   22.8"   16.9"   2533  $ 30402  $    0  2003
2004    82.7" 1533  $  216.3"  100.4"   77.3"   41.2"   63.8"   49.0"   39.0"   40.1"  108.3"   69.8"    201.8$  2421  $    0  2004
2005     3.8"    8.2"   21.3"    2.0"    1.2"    3.5"   46.1"   18.1"   15.3"    6.5"    0.0"  196.6$     26.9$   322.5$    0  2005

2006 2647   $7191   $2445   $ 764.3 "  57.99"  54.71"  49.97"  42.79"  55.02"  55.10"  36.07"  19.17"  1118   $13419   $    0  2006
2007    8.14"   0.00" 337.5 $  19.36"  13.42"  13.67"  21.36"  18.59"   9.18"   3.49"   0.00"   0.00"    37.06$  444.7 $    0  2007
2008 3314   $1155   $ 618.2 $  55.71"  21.61"  36.36"  29.62"  26.50"  21.57"   8.46"   0.00" 118.6 "   450.5 $ 5405   $    0  2008
2009  502.7 $ 366.7 "3305   $  11.90" 223.5 $  46.51"  30.32"  16.00"   6.87"   0.02"   2.26"   0.00"   376.0 $ 4512   $    0  2009
2010    0.00"   8.06"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.01"   4.75"     1.07"   12.81"    0  2010

2011  141.3 "3040   $ 291.3 "   8.01"   1.73"   0.03"   2.09"   0.23"   0.00"   0.00"   0.00" 563.7 $   337.4 $ 4048   $    0  2011
2012 8233   $ 207.5 "1032   $  58.35"   9.65"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00" 203.0 "   812.0 $ 9744   $    0  2012
2013  373.6 "  21.90"1735   $   3.15"   0.00"   7.96"  12.06"   1.32"   0.00"   0.00"   0.00"1146   $   275.1 $ 3301   $    0  2013
2014 7625   $  77.63"   0.65"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   641.9 $ 7703   $    0  2014
2015    5.36"   9.74"1727   $   8.66"  42.69"  11.32"   3.26"   1.46"   0.02"   0.00"   0.00"   0.00"   150.8 $ 1810   $    0  2015

2016  626.6 $ 187.0 "   4.99"   0.00"   0.00" 238.8 "   3.98"   0.08"   0.00"   0.00"   0.00"  24.23"    90.47$ 1086   $    0  2016
2017  850.9 $ 590.2 " 127.1 " 500.3 "   1.90"   0.03"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   172.5 $ 2070   $    0  2017
2018 2522   $ 344.9 "   0.61"   0.00"   0.00"   0.15"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   239.0 $ 2868   $    0  2018
2019   50.00"  78.97"   0.00"   0.00"   0.00"   0.00"   0.00"   0.55"   0.00"   0.00"   0.00"   0.02"    10.80"  129.5 "    0  2019
2020 5818   $1851   $  30.92"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.14#   641.7 $ 7700   $    0  2020

2021  268.6 $2233   $   0.07$   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   208.5 $ 2502   $    0  2021
2022    0.00" 559.3 $ 417.0 $   5.72"   0.46"   0.00"   0.00"   0.00"   0.14"   0.00"   0.00"   0.00"    81.89$  982.7 $    0  2022
2023    0.00"   0.00"   5.70"   0.08"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"   0.00"     0.48"    5.78"    0  2023
2024    0.00"   0.00" 160.5 "   0.00"   0.00"  10.03"   0.00"   0.00"  12.36"   0.00" 169.7 "2610   $   246.9 $ 2962   $    0  2024
2025   11.89"   0.66"   3.53"   0.00"   0.00"  [0.00]  [   ]   [   ]   [   ]   [   ]   [   ]   [   ]     [2.68]  [16.08]  196  2025


Mean [2412  ][1822  ][1285  ][127.5 ] 82.56 ![184.2 ][52.72 ][15.25 ][11.06 ] [6.543] 10.34 "[3184  ] [768.6  ][9035   ]       Mean
Med. [204.9 ][249.7 ][53.66 ] [8.335]  4.894! [9.395] [4.950] [1.469] [0.643] [0.000]  0.000" [0.949]                          Med.
 Max [42337 ][18395 ][24700 ][1113  ]3118   ![4805  ][1841  ][136.3 ][108.4 ] [99.65] 169.7 "[144287] [12039  ][144472 ]        Max
 Min   [0.00]  [0.00]  [0.00]  [0.00]   0.00!  [0.00]  [0.00]  [0.00]  [0.00]  [0.00]   0.00"  [0.00]    [0.48]   [5.78]        Min
Total[139915][105691][74539 ][7397  ]4788   ![10682 ][2953  ][854.0 ][630.4 ][379.5 ] 599.8 "[184652] [45345  ][533081 ]  746  Total
  OK     98%     98%     98%    100%    100%     99%     99%     98%     99%     99%    100%     99%        99%      99%         OK
 Cnt      58      58      58      58      58      58      56      56      57      58      58      58        59       59         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%
                                        [ ... Not Available