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Department of Water and Environmental Regulation HYMONTH V128 Output 21/01/2025
Site 616011 Swan River - Walyunga Site 616011
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
1970 [ ] [ ] [ ] [ ] [1016] 58703" 59638" 33925" 19001" 16064" 1061& 51& [23683] [189460] 134 1970
1971 [29] 513& 10387& 12665" 4193" 8704" 9375" 24306" 29625" 32907" 3871" 765& [11445] [137339] 11 1971
1972 37& 0& 264& 14& [169] 8850" 25942" 81653" 27938" 5200" 629& 10& [12559] [150705] 4 1972
1973 0& 0& 0& 0& [325] [ ] [25177] 145577# 117709" 31737" 5166" 408& [29645] [326099] 61 1973
1974 17& 0& 0& 35292& 53720" 153610" 361158# 534527! 89289 32670 8398 865 105795! 1269544! 0 1974
1975 75& 0& 0& 1194& 3806 18621 106756 124977 36904 15980 2686 408& 25950& 311406& 0 1975
1976 139& 67& 194& 1963& 5557& 10294& 13354& 66236& 32418$ 10406& 3054& 332& 12001& 144014& 0 1976
1977 10& 0& 0& 0& 1303& 6165 9383 44293 7892 3798 4379 73& 6441& 77297& 0 1977
1978 0& 0& 0& 1685& 5409 14762 200224# 47230 23612 10749 560 173& 25367& 304405& 0 1978
1979 12& 460& 476& 791& 2127 14937 23539 36188 11951 3258 1302 140& 7932& 95182& 0 1979
1980 0& 0& 0& 203! 3138& 14144" 42863" 34752" 16837" 8015" 1515& 200" 10139! 121668! 0 1980
1981 42" 0" 0" 79" [324][196601] 164753" 287754" 39271" 12430" 6491" 3701& [59287] [711448] 9 1981
1982 14153& 1426& 106" [139] 2540& 31305" 37966" 67377" 30893" 11731" 1765& 1266& [16722] [200667] 3 1982
1983 39" 0" 1842& 1250& 566& 73264& 419412" 202303" 219130" 16993" 21935" 2560& 79941& 959294& 0 1983
1984 2869& 9" [86] [1801] 49872" 45014" 57157" 78023" 62598" 10827" 4368& 529& [26096] [313152] 34 1984
1985 73" 559& 30" 257& 676! 3788& 35592" 53753" 20733" 5182" 726& 82" 10121! 121454! 0 1985
1986 3" 9493& 2846& 186" 5929$ 53028$ 105244$ 132384$ 33851$ 10441$ 2209$ 513& 29677& 356127& 0 1986
1987 19& 0& 0& 502& 9446$ 23398$ 53032$ 88790$ 24023$ 7745$ 1741$ 1318$ 17501& 210015& 0 1987
1988 286& 0& 0& 0& 5212& 48685$ 104183$ 99658$ 36645$ 28844$ 3939$ 2036$ 27457& 329488& 0 1988
1989 278& 30& 55& 268& 8364$ 40467$ 102845$ 45088$ 16909# 11927$ 1616$ 211& 19005& 228058& 0 1989
1990 36066& 86218$ 17064$ 7710$ 45994! 46629& 83388$ 67034$ 20229# 10734$ 2481$ 478& 35335! 424026! 0 1990
1991 45& 15! 0! 304& 1430$ 41837$ 144792$ 119490$ 45835$ 11419$ 3649! 2327! 30929! 371143! 0 1991
1992 740& 2669& 642& 5796$ 2970$ 33204$ 87350$ 236391$ 208657$ 36832$ 6736$ 1574$ 51963& 623562& 0 1992
1993 153& 0& 563& 816$ 7492$ 23815! 39698! 82542$ 56678$ 11654$ 2820$ 436& 18889! 226668! 0 1993
1994 0& 0& 0& 0& 6354& 34561$ 73428$ 49800$ 14434$ 3235$ 462& 50& 15194& 182323& 0 1994
1995 0& 0& 0& 123& 6972& 59993$ 286062$ 149193$ 58420$ 27603$ 4101$ 963$ 49453& 593431& 0 1995
1996 150& 0& 0& 0& 507& 45009$ 265162$ 242455$ 85610$ 27502$ 13674$ 2088$ 56846& 682155& 0 1996
1997 101& 0& 55! 8950! 3922$ 15620# 21208# 65248$ 50136$ 7383$ 1178$ 224& 14502! 174026! 0 1997
1998 0& 0& 0& 43& 772& 20486$ 52336$ 40301$ 63362$ 10535$ 543& 24& 15700& 188404& 0 1998
1999 236& 51& 22& 431& 27739$ 85749$ 150408$ 120771$ 102604$ 69472$ 5490$ 877& 46987& 563849& 0 1999
2000 161777& 126824$ 10848$ 2713$ 3384$ 12006$ 99149$ 65217$ 58053$ 6770$ 1535$ 224& 45708& 548498& 0 2000
2001 1.2& 0.0& 0.0& 0.0& 309.4& 2057 $ 8052 $51830 $13117 $ 9572 $ 1045 $ 143.4& 7177 & 86129& 0 2001
2002 2.6& 0.0& 0.0& 69.0& 885.4& 5630 $28893 $21649 #18107 $ 4670 $ 1037 & 38.6& 6748 & 80982& 0 2002
2003 0.0& 1017 & 178.7& 7325 & 5334 &14932 $87152 $96866 $39085 $12838 $ 1786 $ 559.9& 22256 & 267075& 0 2003
2004 23.1& 0.0& 0.0& 0.0& 432.9&14689 $25140 $38863 $23937 $ 6180 $ 1474 $ 310.3& 9254 & 111049& 0 2004
------------------ 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 21/01/2025
Site 616011 Swan River - Walyunga Site 616011
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
2005 4& 0& 0& 1138& 21978$ 101521$ 51304$ 57711$ 41661$ 14185$ 2048$ 411& 24330& 291962& 0 2005
2006 34945& 6213$ 706& 303& 952$ 1504$ 5778$ 27182$ 25254# 3894$ 656& 39& 8952& 107426& 0 2006
2007 0& 0& 0& 0& 854& 2427$ 27811$ 65963$ 34373$ 7301$ 912& 494& 11678& 140134& 0 2007
2008 31& 0& 0& 7717& 2396$ 5963$ 65867$ 75298$ 12775# 8409$ 3014$ 439& 15159& 181908& 0 2008
2009 988& 2641& 853& 38& 144& 5216$ 91909$ 81838$ 50039$ 9313$ 2742$ 334& 20505& 246055& 0 2009
2010 0& 0& 737& 960& 554& 2011$ 9373$ 6456$ 3119$ 539& 39& 0& 1982& 23787& 0 2010
2011 0.0& 0.0& 0.0& 0.0& 3.5& 1340 $22042 $73051 $20906 #10040 $ 5809 $ 1789 & 11248 & 134980& 0 2011
2012 1728 & 134.1& 0.0& 0.0& 2.0& 7229 & 4264 $ 8680 $ 8445 $ 1809 $ 664.6& 2096 & 2921 & 35053& 0 2012
2013 488.8& 24.4& 118.0& 306.3& 1356 & 1758 $ 9654 $40403 $80436 $14216 $ 1269 $ 102.4& 12511 & 150132& 0 2013
2014 0.0& 0.0& 0.0& 0.0& 4153 &11926 $47535 $24594 #22415 # 6152 $ 1048 $ 215.5& 9837 & 118038& 0 2014
2015 0.0& 0.0& 0.0& 0.0& 223.4& 1006 $ 3074 $32246 $ 7279 $ 1085 $ 332.5& 24.0& 3773 & 45271& 0 2015
2016 188& 1374& 4757& 7019$ 14449$ 18169# 65860$ 64641$ 33013$ 11068$ 1346$ 213& 18508& 222099& 0 2016
2017 2& 249171& 28733$ 2081$ 2431$ 3083& 18416$ 106209$ 29810# 10576$ 1654$ 417& 37715& 452585& 0 2017
2018 7565& 1119& 757& 160& 1354$ 12101$ 69316$ 159488$ 43497$ 12358$ 2442$ 481& 25887& 310638& 0 2018
2019 19& 0& 0& 0& 0& 9859& 41006$ 24110# 24033$ 2767$ 980& 19& 8566& 102792& 0 2019
2020 0& 0& 0& 0& 0& 1929& 8099$ 18016$ 7835$ 2056$ 1456$ 151& 3295& 39541& 0 2020
2021 0& 0& 22939& 808$ 10924$ 18219# 235120$ 247956$ 44496$ 18802# 5779$ 553& 50466& 605595& 0 2021
2022 2& 0& 0& 518& 1168$ 16593$ 26228$ 264574$ 96705$ 13617$ 3879$ 628& 35326& 423912& 0 2022
2023 4& 0& 3696& 13456# 6097$ 37667$ 21060# 25660# 14988$ 2567$ 206& 0& 10450& 125400& 0 2023
2024 0& 0& 0& 0& 0& 1334& 16546$ 72375$ 26941$ 6968$ 766& 54& 10415& 124985& 0 2024
2025 [0] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [0] [0] 346 2025
Mean [4788 ] 9075 ![2018 ][2353 ][6313 ][28545 ][77274 ]93689 !43337 $12746 & 2954 ! 625.8! [23343 ][277901 ] Mean
Med. [19.1] 0.0! [0.0] [285.6][2396 ][14935 ][47535 ]66236 !30893 $10535 & 1741 ! 408.2! Med.
Max [161777] 249171! [28733] [35292] [53720][196601][419412] 534527! 219130$ 69472& 21935! 3701! [105795][1269544] Max
Min [0] 0! [0] [0] [0] [1006] [3074] 6456! 3119$ 539& 39! 0! [0] [0] Min
Total[263340] 490029![108956][127074][347228]1541413]4250075]5152897!2383510$ 701026& 162466! 34420! [1307234]15562435] 602 Total
OK 99% 100% 99% 99% 98% 100% 98% 100% 100% 100% 100% 100% 99% 99% OK
Cnt 55 54 54 54 55 54 55 55 55 55 55 55 56 56 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