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.
Department of Water and Environmental Regulation HYMONTH V128 Output 05/02/2023 Site 710003 De Grey River - Coolenar Pool Site 710003 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 1974 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [0] 0" [0] [0] 310 1974 1975 0" 415" 57789" 3507" 0" 0" 0" 0" 0" 0" 0" 590262" 54331" 651973" 0 1975 1976 22810! 19769! 959516" 22110" 2570" 1" 0" 0" 0" 0" 0" 0" 85565! 1026776! 0 1976 1977 0" 1107"1298759" 220568" 37167" 11365" 5885! 563! 1! 0" 0" 0" 131285! 1575415! 0 1977 1978 0"1518232" 51615! 5562! 12990" 14534" 104647" 67490" 2932! 2395! 829! 0! 148435! 1781224! 0 1978 1979 0" 58485" 318163" 39192" 39963" 24382" 776" 0" 0" 0" 0" 0" 40080" 480961" 0 1979 1980 [0] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [0] [0] 359 1980 1981 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 365 1981 1982 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [0] 0" [0] [0] 316 1982 1983 1429093" 36905" 19753" 862334" 25378" 11099" 6785" 3900" 1062" 0" 0" 17436" 201145" 2413745" 0 1983 1984 [1380] 866" 739358" 12780" 8326" 4274" 3215" 1636# 82# 0# 0" 0" [64326] [771918] 5 1984 1985 8289! 355010" 74942! 10616" 483" 0" 0" 0" 0" 0" 0" 0" 37445! 449339! 0 1985 1986 0" 0" 0" 0" 0" 0" 0" 0" 0" 0" 0" 0" 0" 0" 0 1986 1987 2211" 675796" 638162" 8901" 2117" 395" 1" 0" 0" 0" 0" 0" 110632" 1327583" 0 1987 1988 3164" 313820"1343643!1314070! 219299" 58327! 8924! 1318! 73! 0" 0! 1579! 272018! 3264217! 0 1988 1989 1! 255019! 38003" 6" 0" 5759" 8" 0! 0! 0! 0! 0! 24900! 298795! 0 1989 1990 4627! 2600" 79! 0! 0! 0! 0! 0! 0! 0! 0! 0! 609! 7307! 0 1990 1991 15575! 10646" 5706! 0! 0! 42395! 259" 0! 0! 0! 0" 2" 6215! 74581! 0 1991 1992 93" 13396# 0# 0# 0# 0# 0" 0" 0" 0" 0# 0# 1124# 13489# 0 1992 1993 0# 580488# 4438" 7" 16058" 4227" 377" 41503" 1975" 0! 0! 117016! 63841! 766088! 0 1993 1994 2244! 30031! 22680" 15" 0" 0" 0" 0" 0" 0" 0" 0" 4581! 54971! 0 1994 1995 0" 985078" 574003" 33448" 1555" 101" 0" 0" 0" 0" 0" 18415" 134383" 1612600" 0 1995 1996 321" 3494"1134196" 24452" 4514" 627" 26" 0" 0" 0" 0" 4246" 97656" 1171875" 0 1996 1997 737978" 878778" 33130" 3273" 128352" 6866" 1982" 140" 33" 0" 0" 0" 149211" 1790531" 0 1997 1998 0" 0" 0" 0" 0" 126" 0" 19557" 19" 0" 0"1077815" 91460" 1097516" 0 1998 1999 58165" 950836" 713628"1898478" 72409" 33405" 17361" 6876" 1704" 28" 0" 262753" 334637" 4015643" 0 1999 2000 791714" 528226$4579212$ 860122" 109343" 51867" 23602" 10950" 5197" 2432" 1206" 5079$ 580746$ 6968950$ 0 2000 2001 14494" 369977" 21176$ 1795$ 1268$ 554" 1168& 735" 64& 0& 0# 0" 34269& 411231& 0 2001 2002 0"1169942" 939558" 3814" 316" 19" 0" 0" 0" 0" 0" 8665" 176860" 2122314" 0 2002 2003 290197" 23841" 166621" 465# 0# 0" 0" 0" 0" 0" 0" 0" 40094# 481124# 0 2003 2004 0" 842593"1109470"1276042" 9768" 3557" 1435" 614" 197" 22" 0" 0" 270308" 3243698" 0 2004 2005 0" 0" 0" 0" 0" 0" 14536" 76" 0" 0" 0" 6816& 1786& 21428& 0 2005 2006 74720& 338095& 668856$ 404794& 18712& 2432& 1085& 439& 34& 0" 0" 0" 125764& 1509167& 0 2006 2007 0" 0"1606690& 106615& 6462& 1659& 1029& 509& 44& 0" 0" 0" 143584& 1723006& 0 2007 2008 0" 196076& 1904& 1386& 7& 29571& 702& 0& 0" 0" 0" 0" 19137& 229647& 0 2008 ------------------ 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 05/02/2023 Site 710003 De Grey River - Coolenar Pool Site 710003 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 2009 0" 0& 640507& 742& 8& 3& 0" 0" 0" 0" 0" 473265& 92877& 1114525& 0 2009 2010 14761& 1097& 15& 1776& 384& 0" 1& 0" 0" 0" 0" 533& 1547& 18567& 0 2010 2011 20865& 261438& 215601" 63397" 7620" 2346" 527" 253# 246" 255" 2759" 1623" 48077& 576929& 0 2011 2012 1049742$ 88333" 589047$ 43692" 5268" 800# 4# 0# 0# 0# 0# 34779" 150972$ 1811667$ 0 2012 2013 11618" 331121$1851862& 41603" 24955" 328525$ 78774" 19561" 7135" 1114" 0" 2050" 224860& 2698318& 0 2013 2014 896179$ 552498$ 48840" 8746" 2582" 161" 1030" 181" 0" 0" 0" 0" 125851$ 1510217$ 0 2014 2015 0" 0" 56104" 2756" 268" 7712" 13" 0" 0" 0" 0" 0" 5571" 66853" 0 2015 2016 2079" 191380$ 4506" 0" 0" 0" 0" 0" 0" 0" 0" 0" 16497$ 197965$ 0 2016 2017 1043566$ 553416$ 627613$ 320362$ 60116" 7656" 1194" 30" 0" 0" 0" 0" 217829$ 2613953$ 0 2017 2018 628913$ 165913" 67380" 3033" 4" 39" 0" 0" 0" 0" 0" 0" 72107$ 865283$ 0 2018 2019 0" 0" 827625$ 57464" 2439" 0" 0" 0" 0" 0" 0" 0" 73961$ 887527$ 0 2019 2020 1823492$ 107056" 17404" 193" 0" 0" 0" 0" 0" 0" 0"1203675$ 262652$ 3151820$ 0 2020 2021 136578" 543257$ 100707" 43149" 12050" 1623" 162" 0" 0" 0" 0" 0" 69794$ 837525$ 0 2021 2022 0" 193217" 246699$ 30020" 1203" 6555" 0" 0" 0" 0" 0" 0" 39808$ 477694$ 0 2022 2023 151653$ [52787] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [102220] [204440] 331 2023 Mean [196522][286979] 498110! 171806! 18532! 14732! 6122! 3918! 462! 139! [102] 81404! [101042][1191641] Mean Med. [2211][136485] 100707! 8746! 2117! 800! 26! 0! 0! 0! [0] 0! Med. Max 1823492]1518232]4579212!1898478! 219299! 328525! 104647! 67490! 7135! 2432! [2759]1203675! [580746][6968950] Max Min [0] [0] 0! 0! 0! 0! 0! 0! 0! 0! [0] 0! [0] [0] Min Total9236522]1.32E07]2.24E07!7731284! 833956! 662960! 275504! 176332! 20799! 6246! [4793]3826006! [4951050]58390399] 1686 Total OK 98% 98% 100% 100% 100% 100% 100% 100% 100% 100% 99% 100% 100% 100% OK Cnt 47 46 45 45 45 45 45 45 45 45 47 47 49 49 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