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Department of Water and Environmental Regulation HYMONTH V128 Output 14/11/2025
Site 616234 Bayswater Main Drain - Bassendean Road Site 616234
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
2023 [28.13] 123.6 $ 147.5 $ 161.0 $ 141.8 $ 713.9 & 632.5 # 603.0 # 490.8 # 284.0 # 188.4 # 166.3 # [306.7 ][3681 ] 25 2023
2024 154.4 # 116.0 $ 116.6 & 89.80& 119.5 $ 400.5 $ 519.2 # 864.5 $ 644.7 #[220.7 ][115.8 ] 257.7 & [301.6 ][3619 ] 41 2024
2025 163.0 & 100.7 & 125.8 $ 105.5 ! 133.9 ! 356.5 ! 608.7 $1137 $1052 $ 799.1 $[221.8 ] [ ] [436.7 ][4803 ] 49 2025
Mean [115.2 ]113.4 &130.0 &118.8 !131.7 !490.3 !586.8 $868.1 $729.0 $[434.6 ][175.3 ]212.0 & [348.3 ][4035 ] Mean
Med. [154.4 ]116.0 &125.8 &105.5 !133.9 !400.5 !608.7 $864.5 $644.7 $[284.0 ][188.4 ]212.0 & Med.
Max [163.0 ] 123.6 & 147.5 & 161.0 ! 141.8 ! 713.9 ! 632.5 $1137 $1052 $[799.1 ][221.8 ] 257.7 & [436.7 ][4803 ] Max
Min [28.13] 100.7 & 116.6 & 89.80! 119.5 ! 356.5 ! 519.2 $ 603.0 $ 490.8 $[220.7 ][115.8 ] 166.3 & [301.6 ][3619 ] Min
Total[345.5 ] 340.3 & 390.0 & 356.3 ! 395.2 !1471 !1760 $2604 $2187 $[1304 ][526.0 ] 424.0 & [1045 ][12104 ] 115 Total
OK 73% 100% 100% 100% 100% 100% 100% 100% 100% 77% 58% 100% 92% 92% OK
Cnt 3 3 3 3 3 3 3 3 3 3 3 2 3 3 Cnt
------------------ Notes -------------------
All recorded data is continuous and reliable
except where the following tags are used...
! ... Not reviewed / Quality not known
# ... Relative Uncertainty +/-15%
$ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
[ ... Not Available