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Department of Water and Environmental Regulation HYMONTH V128 Output 13/08/2026
Site 802156 Margaret River - Margaret Gorge Site 802156
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
1997 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [0] 0& 99590& [33197] [99590] 279 1997
1998 101491& 129475& 6615& 16413& 377& 0& 0& 0& 0& 0& 65328& 459752& 64954& 779452& 0 1998
1999 653308$ 512362$ 74874& 14801& 2748& 1634& 1169& 834& 599& 1268& 61351& 164703& 124138& 1489650& 0 1999
2000 460591$ 587679$1226189] [24816] 34406# 10393# 4641# 2651$ 1900$ 1543$ 1285$ 22225$ [198193][2378317] 45 2000
2001 21191#1415840$1154360$ 64006# 14687# 8404# 5774# 3618$ 1812$ 821$ 1693$ 28004$ 226684$ 2720209$ 0 2001
2002 61796#1048540$ 130499# 4507$ 1704$ 864$ 278$ 17& 0& 0& 12328& 24744# 107106& 1285277& 0 2002
2003 149716# 530267$ 103255# 14193# 3109$ 29& 0& 0& 0& 0& 0& 18806& 68281& 819375& 0 2003
2004 190286$ 757230$ 144301# 27819# 44924# 11145$ 317& 0& 0& 0& 0& 0& 98002& 1176021& 0 2004
2005 23823& 88503$ 39923$ 1368& 0& 0& 0& 0& 0& 0& 0& 92985& 20550& 246602& 0 2005
2006 603623$ 197352# 253690# 16782# 2206$ 22& 0& 0& 0& 0& 5851& 33832# 92780& 1113360& 0 2006
2007 442802$ 5602$ 337200$ 60362# 2333$ 288$ 3& 0& 0& 0& 13522& 64225& 77195& 926337& 0 2007
2008 102720# 681117$ 46090# 6112$ 55& 0& 0& 0& 0& 0& 17738& 104286$ 79843& 958118& 0 2008
2009 618867$ 291608# 118530# 1676& 0& 0& 0& 0& 0& 0& 0& 27517& 88183& 1058198& 0 2009
2010 243849$ 94786# 73202# 21435$ 1736$ 638& 445$ 5& 235& 17185& 9917# 27567# 40917& 491001& 0 2010
2011 254463# 521726$2513888$ 380670# 56305# 3081$ 21& 0& 0& 0& 92538& 136735# 329952& 3959427& 0 2011
2012 172621# 153498# 412839# 71007# 29675# 22202# 15186# 8941# 5070# 2661$ 9544$ 141234# 87040$ 1044479$ 0 2012
2013 119553# 127443# 240964# 30774# 37048# 25057# 14894# 5638$ 1923$ 365& 44634& 142493# 65899& 790786& 0 2013
2014 720101$ 574058$ 82238# 35185# 24280# 11937# 4312$ 607& 0& 0& 0& 100391& 129426& 1553111& 0 2014
2015 387833# 132510# 223402$ 7956$ 2456$ 183& 0& 0& 0& 0& 16939& 141110$ 76032& 912390& 0 2015
2016 175826$ 82045$ 113334$ 15046$ 17321$ 3036$ 23& 0& 0& 0& 0& 102126& 42396& 508758& 0 2016
2017 951134$ 791058$ 680451$ 32858# 8997# 2977$ 906$ 101& 0& 0& 0& 669& 205763& 2469152& 0 2017
2018 239318& 231853# 78427# 1499& 0& 0& 0& 0& 0& 0& 0& 0& 45925& 551097& 0 2018
2019 176501& 27961$ 17824# 3162$ 117& 0& 0& 0& 0& 0& 0& 0& 18797& 225565& 0 2019
2020 104516& 439923$ 604276$ 260& 1061& 299& 0& 0& 0& 0& 0& 557035& 142281& 1707370& 0 2020
2021 237870# 685186$ 316579$ 15297$ 171& 0& 0& 0& 0& 0& 23622& 2105& 106736& 1280830& 0 2021
2022 573760$ 286287$ 2935$ 493& 0& 0& 0& 0& 0& 8660& 605001& 240426$ 143130& 1717561& 0 2022
2023 1658513$ 228369# 24963# 68002# 5848$ 1481$ [28] [ ]N [ ]N [ ]N [ ]N [ ]N [283886][1987204] 183 2023
2024 [641685] 287261$ 384373$ [15738] [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [14409] [268693][1343467] 274 2024
2025 [49938] [75727] [4612] [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [5113] [33848] [135391] 332 2025
2026 [40087][911786] 650429$ [1667] [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] [400992][1603969] 296 2026
Mean [350958][410243][346906][34068 ]11214 & 3987 &[1846 ] 896.5& 461.6&[1250 ]37742 &[98289 ] [123361 ][1244402] Mean
Med. [237870][287261][130499][15518 ] 2395 & 468.5& [11.8] 0.0& 0.0& [0.0] 3772 &[49029 ] Med.
Max 1658513]1415840]2513888][380670] 56305& 25057& [15186] 8941& 5070& [17185] 605001&[557035] [400992][3959427] Max
Min [21191] [5602] [2935] [260] 0& 0& [0] 0& 0& [0] 0& [0] [18797] [99590] Min
Total1.02E07]1.19E07]1.01E07][953905] 291563& 103670& [47998] 22411& 11539& [32503] 981292&2752084] [3700820]37332063] 1409 Total
OK 94% 98% 95% 91% 100% 100% 96% 100% 100% 99% 100% 94% 97% 97% OK
Cnt 29 29 29 28 26 26 26 25 25 26 26 28 30 30 Cnt
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
# ... Relative Uncertainty +/-15%
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
N ... Not Rated
[ ... Not Available