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Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1975
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 [ ] [ ] [ ] [ ] 0.000& 2.948& 4.954& 70.19 " 12.12 & 2.724& 0.783& 0.076& 1
2 [ ] [ ] [ ] [ ] 0.000& 3.411& 7.329& 50.22 " 10.06 & 2.307& 0.542& 0.062& 2
3 [ ] [ ] [ ] [ ] 0.000& 3.086& 8.049& 71.27 " 8.597& 1.970& 0.372& 0.048& 3
4 [ ] [ ] [ ] [ ] 0.000& 1.651& 4.860& 54.30 " 7.466& 1.739& 0.304& 0.050& 4
5 [ ] [ ] [ ] [ ] 0.001& 1.149& 3.720& 37.63 " 6.408& 1.977& 0.240& 0.039& 5
6 [ ] [ ] [ ] [ ] 0.106& 1.521& 5.440& 27.76 " 5.495& 4.468& 0.221& 0.039& 6
7 [ ] [ ] [ ] [ ] 0.061& 4.035& 12.54 & 22.55 & 4.812& 5.648& 0.176& 0.048& 7
8 [ ] [ ] [ ] [ ] 0.056& 3.857& 7.954& 21.42 & 5.432& 4.212& 0.145& 0.025& 8
9 [ ] [ ] [ ] [ ] 0.041& 2.160& 5.393& 19.40 & 5.721& 3.025& 0.128& 0.027& 9
10 [ ] [ ] [ ] [ ] 0.041& 1.391& 10.42 & 22.35 & 4.674& 2.455& 0.115& 0.026& 10
11 [ ] [ ] [ ] 0.000& 0.047& 0.930& 47.51 " 22.89 & 4.045& 2.285& 0.104& 0.041& 11
12 [ ] [ ] [ ] 0.000& 0.035& 0.729& 25.88 & 17.42 & 3.781& 2.085& 0.082& 0.044& 12
13 [ ] [ ] [ ] 0.000& 0.039& 0.572& 28.57 " 13.50 & 3.371& 1.654& 0.078& 0.049& 13
14 [ ] [ ] [ ] 0.000& 0.043& 0.471& 18.40 & 10.28 & 3.068& 1.341& 0.073& 0.029& 14
15 [ ] [ ] [ ] 0.000& 0.034& 0.437& 14.62 & 8.772& 3.070& 1.257& 0.075& 0.015& 15
16 [ ] [ ] [ ] 0.000& 0.036& 0.594& 12.20 & 34.51 & 6.509& 1.739& 1.732& 0.004& 16
17 [ ] [ ] [ ] 0.000& 0.053& 4.514& 47.66 & 80.90 " 6.183& 3.851& 10.78 & 0.002& 17
18 [ ] [ ] [ ] 0.000& 0.065& 3.621& 46.26 " 51.77 " 4.016& 10.92 & 4.814& 0.000& 18
19 [ ] [ ] [ ] 0.000& 0.222& 2.175& 28.73 " 44.78 " 7.236& 6.780& 2.174& 0.000& 19
20 [ ] [ ] [ ] 0.000& 0.685& 2.055& 22.90 & 28.01 " 57.87 & 4.505& 1.246& 0.000& 20
21 [ ] [ ] [ ] 0.000& 0.273& 3.964& 23.99 & 36.25 " 32.53 & 5.597& 0.738& 0.000& 21
22 [ ] [ ] [ ] 0.000& 0.111& 4.213& 19.77 & 23.02 & 14.09 & 4.598& 0.452& 0.000& 22
23 [ ] [ ] [ ] 0.000& 0.072& 2.827& 15.62 & 28.71 & 9.310& 2.827& 0.299& 0.000& 23
24 [ ] [ ] [ ] 0.000& 0.070& 2.671& 13.71 & 111.4 " 7.060& 2.006& 0.212& 0.000& 24
25 [ ] [ ] [ ] 0.000& 0.070& 9.472& 10.71 & 59.16 " 5.475& 1.431& 0.152& 0.000& 25
26 [ ] [ ] [ ] 0.000& 0.063& 26.84 & 18.14 & 44.07 " 7.598& 1.122& 0.110& 0.000& 26
27 [ ] [ ] [ ] 0.000& 0.780& 14.72 & 139.8 " 26.83 " 7.706& 0.856& 0.097& 0.000& 27
28 [ ] [ ] [ ] 0.000& 1.524& 8.974& 82.84 " 23.44 " 4.909& 0.727& 0.081& 0.000& 28
29 [ ] [ ] 0.000& 4.283& 6.774& 251.0 " 19.18 & 3.955& 0.783& 0.074& 0.000& 29
30 [ ] [ ] 0.000& 9.707& 5.601& 115.1 " 16.67 & 3.255& 0.936& 0.083& 0.000& 30
31 [ ] [ ] 5.137& 70.51 " 14.80 & 1.106& 0.000& 31
Mean [ ] [ ] [ ] 0.000& 0.763& 4.245& 36.28 & 35.92 & 8.861& 2.869& 0.883& 0.020&
Median [ ] [ ] [ ] 0.000& 0.061& 2.887& 18.14 & 27.76 & 5.952& 2.085& 0.194& 0.004&
Maximum [ ] [ ] [ ] 0.000& 9.707& 26.84 & 251.0 & 111.4 & 57.87 & 10.92 & 10.78 & 0.076&
Minimum [ ] [ ] [ ] 0.000& 0.000& 0.437& 3.720& 8.772& 3.068& 0.727& 0.073& 0.000&
Total [ ] [ ] [ ] 0.000& 23.65 & 127.4 &1125 &1113 & 265.8 & 88.93 & 26.48 & 0.624&
Missing Days 31 28 31 10 0 0 0 0 0 0 0 0
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 10.46 & " ... Relative Uncertainty +/-10%
Ann. Median 2.085& & ... Relative Uncertainty +/-30%
Annual Total 2771 & [ ... Not Available
Missing Days 100
Maximum Minimum
Daily 251.0 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1976
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.019& 0.000& 0.178& 10.23 & 2.864& 2.678& 4.543& 2.724& 0.144& 0.032& 1
2 0.000& 0.000& 0.004& 0.000& 0.095& 5.534& 3.834& 2.275& 4.191& 3.381& 0.105& 0.022& 2
3 0.000& 0.000& 0.000& 0.000& 0.073& 3.449& 3.419& 2.122& 4.008& 5.396& 0.084& 0.019& 3
4 0.000& 0.000& 0.000& 0.000& 0.067& 2.604& 5.499& 6.232& 3.962& 5.748& 0.077& 0.029& 4
5 0.000& 0.000& 0.000& 0.000& 0.062& 2.162& 10.47 & 7.688& 3.890& 3.096& 0.057& 0.029& 5
6 0.000& 0.000& 0.000& 0.000& 0.058& 1.808& 6.343& 4.184& 4.342& 1.992& 0.061& 0.019& 6
7 0.790& 0.000& 0.000& 0.000& 0.057& 1.664& 4.153& 30.45 & 3.907& 1.383& 0.074& 0.006& 7
8 0.158& 0.000& 0.000& 0.000& 0.064& 1.507& 3.189& 34.59 & 3.162& 0.983& 0.066& 0.005& 8
9 0.080& 0.000& 0.000& 0.000& 0.062& 1.399& 2.602& 14.83 & 2.583& 1.028& 0.078& 0.001& 9
10 0.061& 0.000& 0.000& 0.000& 0.058& 1.174& 2.103& 9.966& 2.230& 2.646& 0.160& 0.001& 10
11 0.044& 0.000& 0.000& 0.000& 0.093& 1.027& 1.803& 7.373& 2.017& 3.209& 0.229& 0.001& 11
12 0.037& 0.000& 0.005& 0.569& 0.068& 0.882& 1.624& 5.787& 1.768& 2.291& 0.171& 0.001& 12
13 0.025& 0.000& 0.212& 0.231& 0.061& 0.741& 1.372& 13.75 & 1.624& 2.396& 0.222& 0.000& 13
14 0.016& 0.000& 0.110& 0.798& 9.473& 0.656& 1.211& 73.05 & 1.503& 3.371& 0.579& 0.000& 14
15 0.018& 0.000& 0.038& 1.648& 57.44 & 0.579& 1.034& 187.1 " 1.455& 3.388& 0.556& 0.000& 15
16 0.020& 0.000& 0.013& 7.573& 10.37 & 0.532& 0.880& 76.66 " 1.497& 2.004& 0.365& 0.000& 16
17 0.009& 0.000& 0.004& 3.779& 4.641& 0.494& 0.740& 43.09 " 1.329& 1.233& 0.265& 0.000& 17
18 0.002& 0.000& 0.000& 1.605& 2.969& 0.450& 0.612& 33.77 " 1.911& 0.909& 0.146& 0.000& 18
19 0.000& 0.000& 0.000& 0.856& 2.207& 0.447& 0.528& 26.30 " 2.862& 1.206& 0.122& 0.000& 19
20 0.000& 0.000& 0.000& 0.484& 2.162& 0.434& 0.769& 19.97 & 2.182& 2.932& 0.115& 0.000& 20
21 0.000& 0.000& 0.000& 0.266& 3.151& 0.971& 2.907& 21.26 & 1.486& 2.463& 0.082& 0.000& 21
22 0.000& 0.382& 0.000& 0.160& 3.938& 9.438& 5.393& 15.05 & 1.107& 1.406& 0.076& 0.000& 22
23 0.000& 0.853& 0.000& 0.107& 2.580& 8.891& 3.231& 12.01 & 0.848& 0.963& 0.068& 0.000& 23
24 0.000& 0.060& 0.000& 0.093& 1.823& 4.981& 4.008& 10.96 & 0.649& 0.671& 0.065& 0.000& 24
25 0.000& 0.027& 0.000& 0.121& 1.375& 4.853& 7.160& 9.279& 0.556& 0.486& 0.070& 0.000& 25
26 0.000& 0.015& 0.000& 0.128& 1.104& 4.068& 4.742& 7.521& 0.492& 0.442& 0.051& 0.000& 26
27 0.000& 0.014& 0.000& 0.171& 0.992& 2.807& 4.229& 6.652& 0.487& 0.476& 0.036& 0.000& 27
28 0.000& 0.060& 0.000& 0.127& 0.915& 2.151& 4.105& 8.034& 2.256& 0.335& 0.046& 0.000& 28
29 0.000& 0.053& 0.000& 0.045& 2.033& 2.081& 6.500& 8.020& 1.827& 0.256& 0.045& 0.000& 29
30 0.000& 0.000& 0.052& 10.20 & 2.461& 5.477& 5.891& 1.589& 0.201& 0.029& 0.000& 30
31 0.000& 0.000& 8.683& 3.548& 4.883& 0.170& 0.000& 31
Mean 0.041& 0.050& 0.013& 0.627& 4.099& 2.683& 3.431& 22.95 & 2.209& 1.909& 0.142& 0.005&
Median 0.000& 0.000& 0.000& 0.114& 1.104& 1.736& 3.231& 9.966& 1.869& 1.406& 0.080& 0.000&
Maximum 0.790& 0.853& 0.212& 7.573& 57.44 & 10.23 & 10.47 & 187.1 & 4.543& 5.748& 0.579& 0.032&
Minimum 0.000& 0.000& 0.000& 0.000& 0.057& 0.434& 0.528& 2.122& 0.487& 0.170& 0.029& 0.000&
Total 1.260& 1.464& 0.405& 18.81 & 127.1 & 80.48 & 106.3 & 711.4 & 66.26 & 59.18 & 4.247& 0.166&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3.216& " ... Relative Uncertainty +/-10%
Ann. Median 0.266& & ... Relative Uncertainty +/-30%
Annual Total 1177 &
Maximum Minimum
Daily 187.1 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1977
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.280& 5.563& 30.76 & 5.990& 14.51 & 15.04 & 0.155& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.202& 5.963& 41.41 " 5.229& 8.501& 9.224& 0.156& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.157& 4.390& 20.09 & 4.615& 20.98 & 6.565& 0.149& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.123& 2.639& 20.17 & 4.295& 11.22 & 4.495& 0.141& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.213& 1.860& 12.50 & 4.036& 5.644& 3.293& 0.137& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.173& 1.505& 10.01 & 3.874& 3.845& 2.666& 0.086& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.122& 1.147& 31.86 & 7.068& 2.988& 2.288& 0.111& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.223& 1.028& 54.30 " 11.54 & 2.446& 1.866& 0.079& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.322& 1.034& 26.53 " 6.423& 2.895& 1.436& 0.077& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.268& 1.716& 94.44 " 4.754& 2.881& 1.132& 0.107& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.256& 1.682& 93.16 " 3.857& 9.394& 0.959& 0.032& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.227& 1.231& 55.73 " 3.171& 79.19 " 0.783& 0.020& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.190& 0.948& 42.78 " 2.741& 35.40 & 0.609& 0.021& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.968& 0.753& 29.01 " 2.449& 16.28 & 0.464& 0.020& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 2.715& 0.619& 21.54 & 2.251& 12.37 & 0.329& 0.022& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 5.476& 0.548& 17.07 & 2.726& 9.337& 0.332& 0.012& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 6.018& 5.246& 13.70 & 2.848& 6.793& 0.286& 0.008& 17
18 0.000& 0.000& 0.000& 0.000& 0.038& 2.980& 12.86 & 28.30 & 2.524& 5.012& 0.241& 0.004& 18
19 0.000& 0.000& 0.000& 0.000& 0.134& 1.877& 7.072& 51.93 " 1.904& 3.862& 0.224& 0.001& 19
20 0.000& 0.000& 0.000& 0.000& 0.108& 1.370& 22.79 & 41.58 " 1.505& 3.117& 0.160& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.141& 1.056& 17.37 & 21.64 & 1.321& 2.442& 0.109& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.223& 0.813& 9.074& 18.10 & 2.677& 1.907& 0.126& 0.001& 22
23 0.000& 0.000& 0.000& 0.000& 0.083& 0.667& 8.210& 14.70 & 4.352& 1.406& 0.162& 0.008& 23
24 0.000& 0.000& 0.000& 0.000& 0.177& 0.532& 6.136& 13.45 & 3.418& 1.148& 0.363& 0.013& 24
25 0.000& 0.000& 0.000& 0.000& 1.718& 0.456& 4.997& 20.81 & 3.466& 0.857& 0.333& 0.011& 25
26 0.000& 0.000& 0.000& 0.000& 5.330& 2.486& 4.202& 15.33 & 2.836& 0.734& 1.887& 0.002& 26
27 0.000& 0.000& 0.000& 0.000& 3.107& 4.239& 3.397& 11.94 & 2.217& 1.416& 1.040& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 1.527& 2.604& 2.791& 12.39 & 10.41 & 13.78 & 0.606& 0.000& 28
29 0.000& 0.000& 0.000& 0.912& 1.609& 2.403& 8.788& 8.167& 10.73 & 0.359& 0.000& 29
30 0.000& 0.000& 0.000& 0.560& 3.261& 2.281& 8.270& 11.43 & 38.01 & 0.252& 0.000& 30
31 0.000& 0.000& 0.384& 2.407& 7.408& 39.23 " 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.466& 1.396& 4.641& 28.70 & 4.470& 11.88 & 1.921& 0.044&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.599& 2.639& 20.81 & 3.662& 5.644& 0.608& 0.013&
Maximum 0.000& 0.000& 0.000& 0.000& 5.330& 6.018& 22.79 & 94.44 & 11.54 & 79.19 & 15.04 & 0.156&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.122& 0.548& 7.408& 1.321& 0.734& 0.109& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 14.44 & 41.89 & 143.9 & 889.7 & 134.1 & 368.3 & 57.63 & 1.375&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4.524& " ... Relative Uncertainty +/-10%
Ann. Median 0.190& & ... Relative Uncertainty +/-30%
Annual Total 1651 &
Maximum Minimum
Daily 94.44 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1978
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 2.183& 56.34 " 54.26 " 4.391& 71.12 & 0.114& 0.043& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 2.130& 41.15 " 38.35 " 3.726& 40.16 " 0.156& 0.035& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 3.617& 27.47 " 29.06 " 4.045& 18.74 & 0.417& 0.053& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 4.215& 21.25 & 50.77 " 4.517& 13.40 & 0.317& 0.055& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 4.089& 18.00 & 167.6 " 4.973& 9.893& 0.557& 0.033& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 8.827& 15.01 & 63.74 " 4.317& 7.176& 0.607& 0.021& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 7.836& 12.45 & 42.54 " 3.416& 5.362& 0.424& 0.010& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 7.527& 10.97 & 32.89 " 2.869& 4.252& 0.298& 0.004& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 6.672& 10.39 & 26.65 " 4.360& 3.425& 0.234& 0.002& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 8.783& 9.149& 22.53 & 10.40 & 2.696& 0.215& 0.001& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 7.279& 8.113& 20.56 & 10.38 & 2.181& 0.177& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 5.135& 9.136& 19.43 & 10.07 & 1.769& 0.176& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 3.888& 9.975& 19.35 & 7.667& 1.462& 0.168& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.222& 3.087& 33.67 & 16.07 & 4.972& 1.297& 0.157& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 11.38 & 2.930& 66.07 " 13.34 & 5.140& 1.219& 0.196& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 5.828& 3.458& 80.72 " 11.93 & 6.599& 1.053& 0.141& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 1.347& 3.485& 49.68 " 10.68 & 6.641& 0.831& 0.106& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.551& 2.866& 30.70 " 8.875& 4.907& 0.671& 0.145& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 1.069& 2.488& 97.11 " 7.782& 8.990& 0.573& 0.103& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 3.832& 2.428& 298.8 " 7.358& 18.03 & 0.491& 0.073& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 10.73 & 7.101& 219.9 " 6.944& 11.27 & 0.381& 0.068& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 7.197& 13.89 & 115.4 " 7.092& 7.998& 0.326& 0.046& 0.002& 22
23 0.000& 0.000& 0.000& 0.000& 5.230& 22.64 & 82.92 " 6.713& 5.990& 0.261& 0.035& 0.021& 23
24 0.000& 0.000& 0.000& 0.000& 3.018& 41.24 & 58.52 " 9.126& 4.837& 0.220& 0.032& 0.016& 24
25 0.000& 0.000& 0.000& 0.000& 1.810& 43.85 " 129.1 " 9.431& 4.450& 0.180& 0.066& 0.009& 25
26 0.000& 0.000& 0.000& 0.000& 1.250& 24.16 & 74.41 " 6.396& 3.850& 0.145& 0.067& 0.004& 26
27 0.000& 0.000& 0.000& 0.000& 1.490& 23.31 & 59.81 " 5.302& 3.092& 0.183& 0.058& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 5.313& 19.48 & 44.11 " 4.865& 2.969& 0.201& 0.072& 0.000& 28
29 0.000& 0.000& 0.000& 10.13 & 93.82 " 35.34 " 10.96 & 2.566& 0.173& 0.088& 0.000& 29
30 0.000& 0.000& 0.000& 4.764& 81.81 " 36.51 " 9.434& 4.269& 0.167& 0.100& 0.000& 30
31 0.000& 0.000& 2.678& 116.8 " 5.932& 0.157& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 2.511& 15.47 & 60.61 & 24.06 & 6.057& 6.134& 0.180& 0.010&
Median 0.000& 0.000& 0.000& 0.000& 1.069& 6.886& 41.15 & 11.93 & 4.872& 1.053& 0.143& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 11.38 & 93.82 & 298.8 & 167.6 & 18.03 & 71.12 & 0.607& 0.055&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 2.130& 8.113& 4.865& 2.566& 0.145& 0.032& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 77.84 & 464.2 &1879 & 746.0 & 181.7 & 190.2 & 5.412& 0.310&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 9.711& " ... Relative Uncertainty +/-10%
Ann. Median 0.157& & ... Relative Uncertainty +/-30%
Annual Total 3545 &
Maximum Minimum
Daily 298.8 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1979
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.089& 2.496& 2.986& 3.163& 1.298& 0.087& 0.037& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.152& 2.338& 2.706& 3.051& 2.070& 0.063& 0.030& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.345& 2.221& 2.420& 2.534& 3.895& 0.070& 0.019& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.415& 1.660& 2.154& 2.625& 2.772& 0.076& 0.007& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.287& 1.297& 1.864& 2.582& 1.739& 0.064& 0.004& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.232& 1.869& 1.922& 2.051& 1.352& 0.145& 0.003& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.207& 7.936& 3.278& 2.460& 1.062& 0.272& 0.001& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.282& 5.160& 5.015& 2.344& 0.848& 0.294& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.230& 2.751& 3.516& 2.613& 0.706& 0.657& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.237& 1.995& 2.788& 4.683& 0.597& 1.834& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.234& 1.778& 2.292& 3.872& 0.598& 2.284& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.257& 2.783& 2.074& 2.565& 0.643& 1.424& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.264& 12.16 & 1.769& 1.934& 1.173& 0.995& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.448& 17.26 & 1.650& 1.561& 1.043& 0.651& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.416& 48.93 & 1.548& 1.332& 0.679& 0.718& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.471& 20.69 & 1.631& 1.216& 0.490& 0.691& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.394& 13.34 & 3.756& 1.131& 0.352& 0.496& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.333& 9.556& 13.11 & 1.189& 0.274& 0.380& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.428& 7.753& 14.20 & 0.932& 0.224& 0.244& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.479& 8.052& 9.555& 0.740& 0.303& 0.169& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.098& 0.481& 7.707& 5.622& 7.273& 0.323& 0.119& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.337& 0.571& 5.689& 4.088& 10.99 & 1.334& 0.107& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.460& 1.656& 5.210& 3.303& 6.233& 1.562& 0.099& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.352& 1.928& 5.654& 3.042& 4.129& 0.875& 0.092& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.245& 1.425& 4.943& 4.747& 2.940& 0.502& 0.065& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.161& 1.306& 3.833& 6.433& 3.541& 0.330& 0.060& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.136& 1.363& 3.215& 4.672& 3.400& 0.202& 0.068& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.186& 2.062& 2.905& 3.170& 2.699& 0.140& 0.064& 0.000& 28
29 0.000& 0.000& 0.000& 0.106& 2.926& 4.458& 2.551& 2.005& 0.084& 0.051& 0.000& 29
30 0.000& 0.000& 0.000& 0.108& 3.194& 5.878& 2.147& 1.435& 0.081& 0.035& 0.000& 30
31 0.000& 0.000& 0.100& 3.873& 2.103& 0.080& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.074& 0.770& 7.271& 3.939& 2.974& 0.891& 0.412& 0.003&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.416& 4.943& 2.986& 2.573& 0.643& 0.132& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.460& 3.194& 48.93 & 14.20 & 10.99 & 3.895& 2.284& 0.037&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.089& 1.297& 1.548& 0.740& 0.080& 0.035& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 2.288& 23.11 & 225.4 & 122.1 & 89.22 & 27.63 & 12.37 & 0.103&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1.376& & ... Relative Uncertainty +/-30%
Ann. Median 0.081&
Annual Total 502.2 &
Maximum Minimum
Daily 48.93 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1980
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.027& 0.193& 15.83 & 7.813& 6.158& 0.571& 1.120& 0.072& 1
2 0.000& 0.000& 0.000& 0.000& 0.018& 0.299& 9.214& 5.877& 4.805& 0.524& 0.930& 0.067& 2
3 0.000& 0.000& 0.000& 0.000& 0.014& 0.755& 6.802& 3.973& 4.039& 0.470& 0.849& 0.046& 3
4 0.000& 0.000& 0.000& 0.000& 0.022& 1.410& 5.198& 3.136& 3.673& 0.462& 0.685& 0.034& 4
5 0.000& 0.000& 0.000& 0.000& 0.031& 3.703& 4.266& 3.360& 3.277& 0.399& 0.654& 0.031& 5
6 0.000& 0.000& 0.000& 0.000& 0.069& 3.478& 3.651& 4.548& 2.798& 0.318& 0.581& 0.023& 6
7 0.000& 0.000& 0.000& 0.000& 0.044& 2.103& 3.151& 4.596& 2.598& 0.257& 0.518& 0.025& 7
8 0.000& 0.000& 0.000& 0.000& 0.042& 1.673& 2.714& 3.614& 2.635& 0.225& 0.387& 0.017& 8
9 0.000& 0.000& 0.000& 0.000& 0.087& 1.361& 2.467& 16.22 & 2.496& 0.196& 0.284& 0.012& 9
10 0.000& 0.000& 0.000& 0.000& 0.065& 1.189& 20.72 & 24.39 & 2.194& 0.151& 0.233& 0.010& 10
11 0.000& 0.212& 0.000& 0.000& 0.047& 0.958& 24.54 & 10.85 & 1.814& 0.131& 0.186& 0.007& 11
12 0.000& 0.111& 0.000& 0.000& 0.071& 0.709& 24.05 & 7.514& 1.554& 0.121& 0.168& 0.006& 12
13 0.000& 0.088& 0.000& 0.000& 0.051& 0.533& 16.74 & 5.860& 1.425& 0.114& 0.153& 0.005& 13
14 0.000& 0.046& 0.000& 0.000& 0.059& 0.526& 14.30 & 4.875& 1.741& 0.115& 0.131& 0.004& 14
15 0.000& 0.018& 0.000& 0.000& 0.063& 0.441& 13.42 & 4.132& 2.201& 0.796& 0.112& 0.002& 15
16 0.000& 0.010& 0.000& 0.000& 0.067& 0.651& 20.66 & 3.549& 3.591& 33.31 & 0.111& 0.000& 16
17 0.000& 0.006& 0.000& 0.000& 0.056& 0.704& 12.79 & 4.024& 4.767& 15.40 & 0.132& 0.000& 17
18 0.000& 0.001& 0.000& 0.000& 0.063& 0.652& 8.466& 25.44 & 3.752& 6.046& 0.118& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.064& 0.532& 6.763& 17.09 & 2.528& 3.294& 0.092& 0.000& 19
20 0.000& 0.000& 0.000& 0.081& 0.053& 0.416& 5.458& 9.906& 1.871& 2.891& 0.087& 0.000& 20
21 0.000& 0.000& 0.000& 0.260& 0.047& 1.360& 4.609& 10.45 & 1.459& 74.83 & 0.085& 0.000& 21
22 0.000& 0.000& 0.000& 0.108& 0.073& 12.09 & 3.987& 9.862& 1.297& 48.13 " 0.049& 0.000& 22
23 0.000& 0.000& 0.000& 0.089& 0.072& 9.517& 3.754& 6.649& 1.522& 15.23 & 0.041& 0.000& 23
24 0.000& 0.000& 0.000& 0.083& 0.057& 5.305& 4.095& 5.484& 2.029& 8.780& 0.046& 0.000& 24
25 0.000& 0.000& 0.000& 0.064& 0.097& 4.872& 4.969& 4.720& 1.953& 6.809& 0.069& 0.000& 25
26 0.000& 0.003& 0.000& 0.063& 0.114& 5.447& 5.450& 8.303& 1.287& 6.560& 0.085& 0.000& 26
27 0.000& 0.003& 0.000& 0.041& 0.102& 3.989& 6.448& 9.890& 0.933& 5.713& 0.080& 0.000& 27
28 0.000& 0.002& 0.000& 0.036& 0.432& 2.764& 5.647& 6.227& 0.700& 4.595& 0.062& 0.000& 28
29 0.000& 0.000& 0.000& 0.033& 0.234& 9.924& 3.994& 5.690& 0.558& 3.358& 0.057& 0.003& 29
30 0.000& 0.000& 0.034& 0.191& 46.19 " 3.301& 13.57 & 0.507& 2.426& 0.071& 0.265& 30
31 0.000& 0.000& 0.207& 4.076& 9.584& 1.513& 0.265& 31
Mean 0.000& 0.017& 0.000& 0.030& 0.085& 4.125& 8.760& 8.426& 2.405& 7.862& 0.273& 0.029&
Median 0.000& 0.000& 0.000& 0.000& 0.063& 1.361& 5.458& 6.227& 2.112& 1.513& 0.124& 0.004&
Maximum 0.000& 0.212& 0.000& 0.260& 0.432& 46.19 & 24.54 & 25.44 & 6.158& 74.83 & 1.120& 0.265&
Minimum 0.000& 0.000& 0.000& 0.000& 0.014& 0.193& 2.467& 3.136& 0.507& 0.114& 0.041& 0.000&
Total 0.000& 0.501& 0.000& 0.893& 2.640& 123.7 & 271.5 & 261.2 & 72.16 & 243.7 & 8.176& 0.896&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2.693& " ... Relative Uncertainty +/-10%
Ann. Median 0.099& & ... Relative Uncertainty +/-30%
Annual Total 985.5 &
Maximum Minimum
Daily 74.83 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1981
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.117& 0.000& 0.000& 0.000& 0.000& 2.738& 4.856& 29.14 " 8.878& 1.576& 0.113& 0.178& 1
2 0.086& 0.000& 0.000& 0.000& 0.000& 3.040& 4.712& 22.38 & 7.772& 2.927& 0.105& 0.131& 2
3 0.060& 0.000& 0.000& 0.000& 0.000& 5.191& 4.174& 26.19 " 6.981& 3.055& 0.112& 0.104& 3
4 0.055& 0.000& 0.000& 0.000& 0.000& 3.753& 3.793& 19.45 & 7.137& 2.212& 0.116& 0.096& 4
5 0.079& 0.000& 0.000& 0.000& 0.000& 2.124& 3.634& 15.90 & 7.634& 1.621& 0.076& 0.080& 5
6 0.047& 0.000& 0.000& 0.000& 0.000& 1.444& 3.637& 12.70 & 5.495& 1.313& 0.080& 0.072& 6
7 0.021& 0.000& 0.000& 0.000& 0.000& 3.510& 3.171& 20.31 & 6.899& 1.133& 0.156& 0.076& 7
8 0.008& 0.000& 0.000& 0.000& 0.000& 15.20 & 2.686& 21.28 & 45.00 & 0.993& 0.146& 0.086& 8
9 0.003& 0.000& 0.000& 0.000& 0.000& 16.57 & 2.386& 13.95 & 16.81 & 0.815& 0.120& 0.084& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 7.935& 2.157& 114.0 & 9.800& 0.656& 0.123& 0.082& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 5.188& 1.949& 81.74 " 7.396& 0.549& 0.170& 0.060& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 13.14 & 1.999& 56.31 " 5.656& 0.465& 0.760& 0.041& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 13.60 & 2.000& 38.32 " 4.712& 0.381& 0.348& 0.039& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 7.055& 1.991& 142.3 " 4.013& 0.309& 0.342& 0.044& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 5.047& 1.788& 135.2 " 3.465& 0.251& 0.278& 0.056& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 5.437& 1.485& 75.99 " 3.195& 0.203& 0.177& 0.064& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 5.200& 2.219& 60.67 " 3.286& 0.215& 0.116& 0.029& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 4.015& 6.600& 41.62 " 3.377& 0.198& 0.093& 0.025& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 3.395& 13.15 & 41.56 " 3.174& 0.167& 0.074& 0.025& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 3.916& 7.708& 81.33 " 4.989& 0.162& 0.056& 0.029& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 6.399& 8.722& 35.46 " 7.871& 0.155& 0.054& 0.033& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 5.385& 59.28 " 27.01 " 5.840& 0.141& 0.052& 0.029& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 3.643& 61.84 " 31.92 " 5.483& 0.144& 0.053& 0.016& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 3.122& 29.16 " 25.02 " 3.998& 0.110& 0.047& 0.014& 24
25 0.000& 0.000& 0.000& 0.000& 0.702& 3.602& 33.74 " 32.79 " 3.254& 0.109& 0.096& 0.012& 25
26 0.000& 0.000& 0.000& 0.000& 0.141& 4.103& 24.59 & 28.60 & 2.749& 0.158& 0.534& 0.008& 26
27 0.000& 0.000& 0.000& 0.000& 0.238& 6.539& 49.33 " 19.33 & 2.378& 0.171& 0.194& 0.006& 27
28 0.000& 0.000& 0.000& 0.000& 0.099& 10.93 & 26.06 & 18.39 & 1.988& 0.142& 0.140& 0.003& 28
29 0.000& 0.000& 0.000& 0.122& 6.757& 21.88 & 15.23 & 1.611& 0.134& 0.140& 0.001& 29
30 0.000& 0.000& 0.000& 4.867& 5.222& 93.64 " 11.78 & 1.393& 0.150& 0.169& 0.002& 30
31 0.000& 0.000& 7.080& 37.35 " 10.17 & 0.115& 0.001& 31
Mean 0.015& 0.000& 0.000& 0.000& 0.427& 6.107& 16.83 & 42.13 & 6.741& 0.669& 0.168& 0.049&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 5.190& 4.712& 28.60 & 5.236& 0.215& 0.118& 0.039&
Maximum 0.117& 0.000& 0.000& 0.000& 7.080& 16.57 & 93.64 & 142.3 & 45.00 & 3.055& 0.760& 0.178&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 1.444& 1.485& 10.17 & 1.393& 0.109& 0.047& 0.001&
Total 0.478& 0.000& 0.000& 0.000& 13.25 & 183.2 & 521.7 &1306 & 202.2 & 20.73 & 5.038& 1.526&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 6.176& " ... Relative Uncertainty +/-10%
Ann. Median 0.104& & ... Relative Uncertainty +/-30%
Annual Total 2254 &
Maximum Minimum
Daily 142.3 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1982
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.001& 2.752& 0.098& 0.062& 0.082& 0.061& 0.707& 1.622& 1.377& 0.830& 0.054& 0.315& 1
2 0.000& 2.047& 0.073& 0.062& 0.059& 0.059& 0.598& 6.851& 1.217& 0.681& 0.042& 0.217& 2
3 0.001& 1.430& 0.068& 0.062& 0.052& 0.084& 1.254& 5.480& 1.081& 0.683& 0.040& 0.174& 3
4 0.003& 1.111& 0.073& 0.053& 0.045& 0.077& 3.080& 3.052& 0.960& 0.629& 0.034& 0.131& 4
5 0.008& 0.918& 0.070& 0.041& 0.058& 0.071& 3.009& 2.187& 0.878& 2.502& 0.041& 0.094& 5
6 0.008& 0.689& 0.064& 0.027& 0.033& 0.069& 2.765& 1.686& 0.678& 4.459& 0.044& 0.088& 6
7 0.009& 0.584& 0.060& 0.047& 0.034& 0.060& 2.727& 4.503& 0.607& 2.324& 0.044& 0.046& 7
8 0.006& 0.463& 0.085& 0.052& 0.029& 0.122& 1.881& 11.98 & 0.533& 1.376& 0.033& 0.022& 8
9 0.004& 0.370& 0.073& 0.053& 0.033& 0.135& 1.416& 6.581& 0.440& 0.942& 0.032& 0.019& 9
10 0.001& 0.329& 0.054& 0.048& 0.029& 0.234& 1.144& 3.932& 0.379& 0.791& 0.016& 0.009& 10
11 0.000& 0.297& 0.055& 0.031& 0.031& 0.202& 1.031& 2.827& 0.378& 0.669& 0.011& 0.018& 11
12 0.000& 0.280& 0.063& 0.026& 0.049& 0.128& 0.914& 2.290& 0.344& 0.509& 0.016& 0.021& 12
13 0.000& 0.289& 0.055& 0.023& 0.060& 0.176& 0.780& 1.978& 0.326& 0.414& 0.025& 0.014& 13
14 0.000& 0.270& 0.054& 0.014& 0.043& 0.186& 0.609& 1.701& 0.369& 0.295& 0.055& 0.011& 14
15 0.000& 0.213& 0.056& 0.022& 0.050& 0.203& 0.919& 1.469& 0.421& 0.212& 0.057& 0.006& 15
16 0.000& 0.198& 0.042& 0.044& 0.048& 0.317& 2.323& 1.222& 0.749& 0.168& 0.041& 0.004& 16
17 0.000& 0.202& 0.037& 0.045& 0.053& 0.762& 2.900& 1.070& 1.275& 0.147& 0.023& 0.001& 17
18 0.000& 0.203& 0.033& 0.047& 0.074& 1.690& 2.245& 1.036& 1.540& 0.147& 0.012& 0.000& 18
19 0.000& 0.200& 0.016& 0.049& 0.074& 1.266& 1.673& 1.908& 1.631& 0.187& 0.003& 0.000& 19
20 1.056& 0.194& 0.019& 0.043& 0.083& 0.909& 2.035& 3.414& 1.726& 0.160& 0.000& 0.000& 20
21 1146 & 0.175& 0.065& 0.050& 0.061& 0.683& 2.533& 2.404& 1.470& 0.099& 0.000& 0.000& 21
22 3284 & 0.143& 0.082& 0.043& 0.067& 0.541& 2.408& 1.729& 1.762& 0.073& 0.000& 0.000& 22
23 155.6 " 0.177& 0.101& 0.047& 0.077& 0.493& 1.885& 10.34 & 2.150& 0.053& 0.000& 0.000& 23
24 68.79 " 0.161& 0.067& 0.062& 0.074& 0.456& 1.623& 10.98 & 3.698& 0.051& 0.000& 0.000& 24
25 35.35 " 0.216& 0.054& 0.052& 0.074& 0.508& 1.518& 4.685& 7.350& 0.074& 0.000& 0.000& 25
26 21.24 & 0.125& 0.054& 0.054& 0.127& 0.746& 1.317& 2.969& 4.465& 0.056& 0.216& 0.000& 26
27 14.09 & 0.094& 0.060& 0.047& 0.175& 1.371& 2.233& 2.323& 2.714& 0.072& 0.713& 0.000& 27
28 9.627& 0.100& 0.076& 0.063& 0.098& 1.116& 3.902& 2.003& 1.725& 0.064& 0.362& 0.000& 28
29 6.488& 0.085& 0.047& 0.097& 0.870& 3.082& 2.015& 1.331& 0.070& 0.987& 0.000& 29
30 4.734& 0.059& 0.048& 0.132& 0.745& 2.129& 2.139& 1.000& 0.071& 0.518& 0.000& 30
31 3.518& 0.065& 0.072& 1.647& 1.912& 0.069& 0.000& 31
Mean 153.3 & 0.508& 0.062& 0.045& 0.067& 0.478& 1.880& 3.558& 1.486& 0.609& 0.114& 0.038&
Median 0.006& 0.243& 0.063& 0.047& 0.060& 0.276& 1.881& 2.290& 1.149& 0.187& 0.033& 0.004&
Maximum 3284 & 2.752& 0.101& 0.063& 0.175& 1.690& 3.902& 11.98 & 7.350& 4.459& 0.987& 0.315&
Minimum 0.000& 0.094& 0.016& 0.014& 0.029& 0.059& 0.598& 1.036& 0.326& 0.051& 0.000& 0.000&
Total 4751 & 14.23 & 1.917& 1.364& 2.072& 14.34 & 58.29 & 110.3 & 44.57 & 18.88 & 3.421& 1.189&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 13.76 & " ... Relative Uncertainty +/-10%
Ann. Median 0.127& & ... Relative Uncertainty +/-30%
Annual Total 5022 &
Maximum Minimum
Daily 3284 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1983
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 663.1 & 0.180& 0.684& 46.41 " 31.25 " 215.0 " 2.872& 0.110& 0.080& 1
2 0.000& 0.000& 0.000& 18.31 & 0.178& 19.23 & 32.92 " 25.57 " 74.29 " 2.593& 0.102& 0.083& 2
3 0.000& 0.000& 0.000& 6.795& 55.18 & 12.65 & 26.57 " 21.35 & 583.3 " 2.438& 0.086& 0.073& 3
4 0.000& 0.000& 0.000& 3.388& 11.07 & 5.426& 29.06 " 26.36 " 772.9 " 2.189& 0.073& 0.079& 4
5 0.000& 0.000& 0.000& 2.206& 3.251& 3.809& 19.36 & 86.99 " 321.5 " 1.907& 0.055& 0.057& 5
6 0.000& 0.000& 0.000& 1.572& 1.696& 2.995& 15.56 & 30.83 " 659.9 " 1.650& 0.056& 0.059& 6
7 0.000& 0.000& 0.000& 1.200& 1.070& 2.409& 13.17 & 21.13 & 379.8 " 2.611& 0.080& 0.044& 7
8 0.000& 0.000& 0.000& 0.942& 0.797& 1.923& 31.86 & 17.71 & 103.3 " 3.669& 0.080& 0.023& 8
9 0.000& 0.000& 0.000& 0.718& 0.673& 1.588& 317.1 " 15.03 & 63.53 " 3.193& 0.063& 0.019& 9
10 0.000& 0.000& 0.000& 0.625& 0.546& 1.286& 123.6 " 13.29 & 45.10 " 2.460& 0.061& 0.016& 10
11 0.000& 0.000& 0.000& 0.593& 0.426& 1.104& 51.26 " 12.89 & 38.37 " 1.885& 0.068& 0.017& 11
12 0.000& 0.000& 0.000& 0.499& 0.411& 1.112& 36.91 " 50.70 & 46.34 " 1.622& 0.089& 0.012& 12
13 0.000& 0.000& 0.000& 0.423& 0.487& 1.459& 38.52 " 70.47 " 51.82 " 1.923& 0.088& 0.008& 13
14 0.000& 0.000& 0.000& 0.412& 0.612& 2.764& 28.18 " 129.3 " 36.46 " 2.212& 0.073& 0.003& 14
15 0.000& 0.000& 0.000& 0.397& 0.936& 2.090& 22.26 & 41.99 " 61.00 " 1.639& 0.059& 0.001& 15
16 0.000& 0.000& 0.000& 0.388& 0.887& 1.598& 18.11 & 27.06 " 36.30 " 1.241& 0.096& 0.000& 16
17 0.000& 0.000& 0.000& 0.358& 0.611& 7.636& 14.98 & 21.31 & 24.22 & 1.123& 0.358& 0.000& 17
18 0.000& 0.000& 0.000& 0.353& 0.472& 60.98 " 15.81 & 20.72 & 19.26 & 1.090& 0.157& 0.000& 18
19 0.000& 0.000& 0.000& 0.343& 0.417& 55.15 " 17.22 & 18.07 & 15.25 & 1.109& 0.220& 0.000& 19
20 0.000& 0.000& 0.000& 0.310& 0.356& 23.58 & 13.38 & 146.2 & 11.91 & 0.903& 0.935& 0.000& 20
21 0.000& 0.000& 0.000& 0.284& 0.299& 12.59 & 16.33 & 61.17 " 10.70 & 0.789& 0.734& 0.000& 21
22 0.000& 0.000& 0.000& 0.232& 0.299& 12.49 & 16.47 & 34.18 " 8.532& 0.594& 0.411& 0.000& 22
23 0.000& 0.000& 0.000& 0.213& 0.319& 10.69 & 11.95 & 176.2 " 7.293& 0.485& 0.363& 0.000& 23
24 0.000& 0.000& 0.000& 0.200& 0.312& 7.981& 87.43 & 159.9 " 8.391& 0.380& 0.239& 0.000& 24
25 0.000& 0.000& 0.000& 0.200& 0.297& 11.87 & 102.7 " 81.45 " 7.722& 0.318& 0.152& 0.000& 25
26 0.000& 0.000& 0.000& 0.205& 0.253& 13.00 & 159.7 " 45.07 " 5.849& 0.294& 0.129& 0.000& 26
27 0.000& 0.000& 0.000& 0.189& 0.230& 14.83 & 101.6 " 70.79 " 5.755& 0.282& 0.107& 0.000& 27
28 0.000& 0.000& 0.000& 0.187& 0.221& 169.4 " 46.36 " 55.14 " 5.136& 0.308& 0.076& 0.000& 28
29 0.000& 0.000& 0.193& 0.210& 350.3 " 49.01 " 75.08 " 4.030& 0.318& 0.063& 0.000& 29
30 0.000& 0.000& 0.206& 0.194& 107.3 " 121.4 " 98.17 " 3.362& 0.254& 0.090& 0.000& 30
31 0.000& 758.4 & 0.187& 42.71 " 56.63 " 0.124& 0.030& 31
Mean 0.000& 0.000& 24.47 & 23.50 & 2.680& 30.66 & 53.81 & 56.20 & 120.9 & 1.435& 0.176& 0.020&
Median 0.000& 0.000& 0.000& 0.393& 0.417& 7.808& 31.86 & 41.99 & 36.38 & 1.241& 0.090& 0.001&
Maximum 0.000& 0.000& 758.4 & 663.1 & 55.18 & 350.3 & 317.1 & 176.2 & 772.9 & 3.669& 0.935& 0.083&
Minimum 0.000& 0.000& 0.000& 0.187& 0.178& 0.684& 11.95 & 12.89 & 3.362& 0.124& 0.055& 0.000&
Total 0.000& 0.000& 758.4 & 705.0 & 83.08 & 919.9 &1668 &1742 &3626 & 44.48 & 5.277& 0.605&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 26.17 & " ... Relative Uncertainty +/-10%
Ann. Median 0.380& & ... Relative Uncertainty +/-30%
Annual Total 9553 &
Maximum Minimum
Daily 772.9 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1984
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.086& 0.000& 0.000& 0.000& 0.000& 4.579& 11.35 & 6.220& 9.596& 7.124& 0.144& 0.216& 1
2 0.057& 0.000& 0.000& 0.000& 0.000& 3.481& 9.143& 18.77 & 9.214& 9.860& 0.179& 0.166& 2
3 0.041& 0.000& 0.000& 0.000& 0.000& 3.587& 8.547& 94.62 " 14.98 & 6.352& 0.183& 0.112& 3
4 0.028& 0.000& 0.000& 0.000& 0.000& 3.388& 39.04 & 46.77 " 14.68 & 4.636& 0.137& 0.088& 4
5 0.008& 0.000& 0.000& 0.000& 0.000& 5.291& 42.58 " 40.26 " 85.15 " 3.944& 6.060& 0.084& 5
6 0.001& 0.000& 0.000& 0.000& 0.000& 8.088& 30.08 " 33.69 " 34.04 " 3.335& 12.20 & 0.066& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 5.775& 21.70 & 35.42 " 20.37 & 3.723& 7.401& 0.051& 7
8 0.000& 0.000& 0.000& 0.000& 0.178& 4.017& 38.84 " 26.03 " 27.47 & 4.507& 7.686& 0.048& 8
9 0.000& 0.000& 0.000& 0.000& 0.110& 3.013& 34.09 " 26.39 & 57.41 " 3.764& 9.560& 0.054& 9
10 0.000& 0.000& 0.000& 0.000& 0.096& 2.387& 21.59 & 21.88 & 31.24 & 2.829& 4.286& 0.046& 10
11 0.000& 0.000& 0.000& 0.000& 0.049& 1.994& 16.41 & 18.24 & 18.44 & 2.297& 2.161& 0.033& 11
12 0.000& 0.000& 0.000& 0.000& 0.065& 2.504& 15.66 & 15.32 & 13.95 & 1.961& 1.361& 0.033& 12
13 0.000& 0.000& 0.000& 0.000& 0.101& 23.02 & 12.99 & 12.86 & 15.63 & 1.671& 0.866& 0.026& 13
14 0.000& 0.000& 0.000& 0.000& 0.087& 12.15 & 11.59 & 11.15 & 308.1 " 1.377& 0.539& 0.030& 14
15 0.000& 0.000& 0.000& 0.000& 0.048& 8.042& 13.83 & 22.23 & 92.01 " 1.141& 0.369& 0.032& 15
16 0.000& 0.000& 0.000& 0.000& 0.057& 6.309& 27.86 & 23.85 & 47.68 " 0.971& 12.15 & 0.022& 16
17 0.000& 0.000& 0.000& 0.000& 0.382& 4.759& 17.00 & 13.53 & 35.00 " 0.806& 23.55 & 0.019& 17
18 0.000& 0.000& 0.000& 0.000& 0.199& 3.842& 16.16 & 10.83 & 26.55 " 0.659& 7.879& 0.012& 18
19 0.000& 0.000& 0.000& 0.000& 0.570& 3.263& 13.33 & 15.99 & 20.46 & 0.514& 3.531& 0.011& 19
20 0.000& 0.000& 0.000& 0.000& 3.278& 10.42 & 10.80 & 25.24 & 16.94 & 0.423& 1.919& 0.008& 20
21 0.000& 0.000& 0.000& 0.000& 4.345& 77.43 " 9.309& 16.86 & 12.93 & 0.375& 1.144& 0.004& 21
22 0.000& 0.000& 0.000& 0.000& 3.205& 54.56 " 8.319& 15.61 & 10.87 & 0.324& 0.720& 0.001& 22
23 0.000& 0.000& 0.000& 0.000& 1.643& 26.24 " 7.090& 11.27 & 9.626& 0.288& 0.525& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 1.086& 23.17 & 6.314& 9.371& 8.608& 0.256& 0.440& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 2.073& 21.68 & 6.476& 7.935& 8.163& 0.253& 0.438& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 13.17 & 18.48 & 22.57 & 7.425& 7.398& 0.236& 0.439& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 18.56 & 12.32 & 17.39 & 7.096& 6.667& 0.200& 0.367& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 19.36 & 10.03 & 11.03 & 6.649& 5.631& 0.150& 0.329& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 8.356& 8.728& 9.092& 10.47 & 5.179& 0.110& 0.276& 0.000& 29
30 0.000& 0.000& 0.000& 8.700& 8.804& 7.488& 23.90 & 5.992& 0.110& 0.223& 0.000& 30
31 0.000& 0.000& 7.112& 6.750& 12.35 & 0.143& 0.000& 31
Mean 0.007& 0.000& 0.000& 0.000& 2.995& 12.71 & 16.92 & 20.91 & 32.67 & 2.075& 3.569& 0.038&
Median 0.000& 0.000& 0.000& 0.000& 0.178& 7.176& 13.33 & 15.99 & 15.31 & 0.971& 0.793& 0.022&
Maximum 0.086& 0.000& 0.000& 0.000& 19.36 & 77.43 & 42.58 & 94.62 & 308.1 & 9.860& 23.55 & 0.216&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 1.994& 6.314& 6.220& 5.179& 0.110& 0.137& 0.000&
Total 0.221& 0.000& 0.000& 0.000& 92.83 & 381.4 & 524.4 & 648.2 & 980.0 & 64.34 & 107.1 & 1.164&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 7.649& " ... Relative Uncertainty +/-10%
Ann. Median 0.282& & ... Relative Uncertainty +/-30%
Annual Total 2800 &
Maximum Minimum
Daily 308.1 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1985
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.044& 0.396& 49.77 & 4.522& 16.24 & 1.031& 0.060& 0.046& 1
2 0.000& 0.000& 0.000& 0.000& 0.038& 0.397& 17.25 & 3.972& 10.84 & 0.970& 0.046& 0.047& 2
3 0.000& 0.000& 0.000& 0.000& 0.144& 0.369& 9.034& 7.036& 8.725& 0.808& 0.106& 0.047& 3
4 0.000& 0.000& 0.000& 0.000& 0.113& 0.351& 6.428& 11.68 & 7.376& 0.743& 0.144& 0.039& 4
5 0.000& 0.000& 0.000& 0.000& 0.108& 0.337& 5.000& 8.955& 6.081& 0.774& 0.078& 0.036& 5
6 0.000& 0.000& 0.000& 0.000& 0.108& 0.422& 4.006& 8.576& 5.176& 0.625& 0.056& 0.022& 6
7 0.000& 0.000& 0.000& 0.000& 0.081& 3.821& 3.272& 6.862& 4.479& 0.472& 0.051& 0.011& 7
8 0.000& 0.000& 0.000& 0.000& 0.062& 8.617& 2.757& 5.498& 4.680& 0.402& 0.074& 0.003& 8
9 0.000& 0.000& 0.000& 59.74 & 0.054& 3.949& 2.439& 8.916& 6.694& 0.372& 0.062& 0.000& 9
10 0.000& 0.000& 0.000& 37.85 & 0.061& 2.293& 2.252& 12.03 & 5.710& 0.299& 0.038& 0.000& 10
11 0.000& 0.000& 0.000& 6.286& 0.054& 1.928& 2.180& 10.22 & 4.339& 0.293& 0.029& 0.000& 11
12 0.000& 0.000& 0.000& 2.837& 0.062& 1.789& 2.451& 8.978& 3.540& 0.369& 0.025& 0.000& 12
13 0.000& 0.000& 0.000& 1.460& 0.071& 1.832& 14.45 & 8.202& 2.979& 0.367& 0.027& 0.000& 13
14 0.000& 0.000& 0.000& 0.809& 0.072& 2.029& 26.90 & 6.331& 2.511& 0.405& 0.021& 0.000& 14
15 0.000& 0.000& 0.000& 0.465& 0.083& 5.926& 10.53 & 10.25 & 2.268& 0.501& 0.022& 0.000& 15
16 0.000& 0.000& 0.000& 0.313& 0.079& 4.586& 6.905& 8.290& 2.160& 0.572& 0.033& 0.000& 16
17 0.000& 0.000& 0.000& 0.200& 0.067& 6.219& 5.116& 5.316& 2.070& 0.565& 0.029& 0.000& 17
18 0.000& 0.000& 0.000& 0.182& 0.072& 3.931& 4.219& 7.747& 3.347& 0.507& 0.018& 0.000& 18
19 0.000& 0.000& 0.000& 0.182& 0.076& 2.473& 4.428& 28.46 & 3.381& 0.411& 0.014& 0.000& 19
20 0.000& 0.000& 0.000& 0.134& 0.091& 1.763& 6.546& 38.60 " 2.234& 0.332& 0.085& 0.000& 20
21 0.000& 0.000& 0.000& 0.091& 0.067& 1.454& 5.705& 19.78 & 1.856& 0.331& 0.187& 0.000& 21
22 0.000& 0.000& 0.000& 0.085& 0.043& 1.632& 4.369& 13.33 & 4.335& 0.234& 0.070& 0.000& 22
23 0.000& 0.000& 0.000& 0.057& 0.027& 2.020& 3.629& 11.82 & 6.083& 0.203& 0.048& 0.000& 23
24 0.000& 0.000& 0.000& 0.054& 0.014& 2.089& 3.109& 38.38 & 3.853& 0.182& 0.040& 0.000& 24
25 0.000& 0.000& 0.000& 0.055& 0.051& 1.956& 3.271& 63.20 " 2.613& 0.138& 0.037& 0.000& 25
26 0.000& 0.000& 0.000& 0.061& 0.250& 1.792& 6.180& 43.77 " 1.959& 0.113& 0.032& 0.000& 26
27 0.000& 0.000& 0.000& 0.059& 0.180& 1.465& 10.41 & 96.10 " 1.518& 0.154& 0.036& 0.000& 27
28 0.000& 0.000& 0.000& 0.051& 0.428& 1.240& 15.18 & 33.29 " 1.290& 0.143& 0.037& 0.000& 28
29 0.000& 0.000& 0.065& 0.359& 4.108& 9.684& 22.61 & 1.174& 0.090& 0.038& 0.000& 29
30 0.000& 0.000& 0.069& 0.346& 6.942& 7.280& 18.68 & 1.123& 0.066& 0.045& 0.000& 30
31 0.000& 0.000& 0.302& 5.436& 21.23 & 0.057& 0.000& 31
Mean 0.000& 0.000& 0.000& 3.704& 0.116& 2.604& 8.393& 19.12 & 4.354& 0.404& 0.053& 0.008&
Median 0.000& 0.000& 0.000& 0.067& 0.072& 1.942& 5.436& 10.25 & 3.460& 0.369& 0.039& 0.000&
Maximum 0.000& 0.000& 0.000& 59.74 & 0.428& 8.617& 49.77 & 96.10 & 16.24 & 1.031& 0.187& 0.047&
Minimum 0.000& 0.000& 0.000& 0.000& 0.014& 0.337& 2.180& 3.972& 1.123& 0.057& 0.014& 0.000&
Total 0.000& 0.000& 0.000& 111.1 & 3.608& 78.12 & 260.2 & 592.6 & 130.6 & 12.53 & 1.586& 0.252&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3.262& " ... Relative Uncertainty +/-10%
Ann. Median 0.079& & ... Relative Uncertainty +/-30%
Annual Total 1191 &
Maximum Minimum
Daily 96.10 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1986
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 1.128& 0.000& 0.000& 0.068& 4.340& 13.57 & 3.819& 0.956& 0.076& 0.025& 1
2 0.000& 0.000& 0.706& 0.000& 0.000& 0.074& 3.446& 10.23 & 3.316& 0.842& 0.069& 0.039& 2
3 0.000& 0.000& 0.506& 0.000& 0.000& 0.071& 3.597& 7.345& 3.797& 0.700& 0.081& 0.045& 3
4 0.000& 0.000& 0.217& 0.000& 0.000& 0.052& 3.404& 5.708& 5.455& 0.633& 0.093& 0.049& 4
5 0.000& 0.000& 0.140& 0.000& 0.000& 0.044& 2.798& 4.756& 4.159& 0.573& 0.071& 0.055& 5
6 0.000& 0.000& 0.103& 0.000& 0.000& 0.091& 3.417& 4.296& 2.988& 0.477& 0.071& 0.039& 6
7 0.000& 0.000& 0.086& 0.000& 0.000& 0.064& 3.079& 4.502& 2.439& 0.432& 0.061& 0.020& 7
8 0.000& 0.000& 0.082& 0.000& 0.000& 0.063& 2.549& 4.839& 2.117& 0.458& 0.074& 0.011& 8
9 0.000& 0.000& 0.087& 0.000& 0.000& 0.049& 1.919& 4.491& 1.969& 0.432& 0.066& 0.003& 9
10 0.000& 0.000& 0.094& 0.000& 0.000& 0.073& 1.604& 3.857& 2.932& 0.400& 0.053& 0.000& 10
11 0.000& 0.000& 0.067& 0.000& 0.000& 0.069& 1.360& 3.731& 37.36 & 0.399& 0.036& 0.000& 11
12 0.000& 0.000& 0.072& 0.000& 0.000& 0.070& 1.241& 5.085& 13.01 & 0.540& 0.034& 0.000& 12
13 0.000& 0.000& 0.057& 0.000& 0.000& 0.081& 1.497& 5.276& 7.489& 1.217& 0.032& 0.000& 13
14 0.000& 0.000& 0.062& 0.000& 0.000& 0.055& 2.246& 4.014& 5.433& 2.313& 0.052& 0.000& 14
15 0.000& 0.000& 0.060& 0.000& 0.000& 0.219& 4.019& 5.751& 7.082& 1.647& 0.051& 0.000& 15
16 0.000& 0.000& 0.023& 0.000& 0.000& 3.230& 3.763& 5.686& 9.814& 1.355& 0.043& 0.000& 16
17 0.000& 0.000& 0.014& 0.000& 0.000& 5.870& 2.629& 4.729& 6.635& 1.647& 0.038& 0.000& 17
18 0.000& 0.000& 0.018& 0.000& 0.000& 3.068& 2.126& 11.27 & 4.897& 1.758& 0.030& 0.000& 18
19 0.000& 0.000& 0.036& 0.000& 0.000& 2.190& 1.846& 7.436& 4.163& 1.740& 0.015& 0.000& 19
20 0.000& 0.000& 0.036& 0.000& 0.111& 1.682& 1.630& 4.857& 3.614& 1.419& 0.007& 0.000& 20
21 0.000& 0.000& 0.032& 0.000& 0.137& 1.333& 1.662& 4.203& 3.354& 1.014& 0.008& 0.000& 21
22 0.000& 1.180& 0.024& 0.000& 0.133& 0.963& 5.529& 10.35 & 3.153& 0.763& 0.005& 0.000& 22
23 0.000& 2.464& 0.020& 0.000& 0.117& 0.828& 5.952& 8.443& 3.354& 0.595& 0.004& 0.000& 23
24 0.000& 1.006& 0.008& 0.000& 0.072& 1.592& 4.659& 5.503& 3.593& 0.437& 0.003& 0.000& 24
25 0.000& 0.428& 0.002& 0.000& 0.131& 15.47 & 6.360& 5.793& 2.781& 0.310& 0.004& 0.000& 25
26 0.000& 0.617& 0.000& 0.000& 0.181& 34.97 & 5.730& 4.853& 2.403& 0.248& 0.003& 0.000& 26
27 0.000& 2.734& 0.000& 0.000& 0.163& 10.40 & 3.859& 4.189& 1.954& 0.222& 0.001& 0.000& 27
28 0.000& 2.549& 0.000& 0.000& 0.104& 9.756& 2.810& 7.186& 1.603& 0.175& 0.002& 0.000& 28
29 0.000& 0.000& 0.000& 0.077& 7.302& 2.221& 7.295& 1.266& 0.143& 0.002& 0.000& 29
30 0.000& 0.000& 0.000& 0.070& 5.046& 24.80 & 4.759& 1.007& 0.130& 0.010& 0.000& 30
31 0.000& 0.000& 0.063& 32.01 & 4.152& 0.098& 0.000& 31
Mean 0.000& 0.392& 0.119& 0.000& 0.044& 3.495& 4.777& 6.069& 5.232& 0.777& 0.037& 0.009&
Median 0.000& 0.000& 0.036& 0.000& 0.000& 0.523& 3.079& 5.085& 3.473& 0.573& 0.035& 0.000&
Maximum 0.000& 2.734& 1.128& 0.000& 0.181& 34.97 & 32.01 & 13.57 & 37.36 & 2.313& 0.093& 0.055&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.044& 1.241& 3.731& 1.007& 0.098& 0.001& 0.000&
Total 0.000& 10.98 & 3.680& 0.000& 1.359& 104.8 & 148.1 & 188.1 & 157.0 & 24.07 & 1.097& 0.288&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1.752& & ... Relative Uncertainty +/-30%
Ann. Median 0.068&
Annual Total 639.5 &
Maximum Minimum
Daily 37.36 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1987
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.297& 0.727& 6.297& 1.412& 0.118& 0.089& 0.061& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.240& 0.904& 4.133& 1.129& 0.088& 0.084& 0.068& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.218& 1.134& 2.982& 0.932& 0.072& 0.071& 0.048& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.250& 3.256& 2.277& 0.865& 0.077& 0.067& 0.080& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.343& 3.128& 1.931& 0.719& 0.066& 0.089& 0.083& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.407& 1.933& 1.606& 0.590& 0.063& 0.047& 0.188& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.469& 1.275& 1.422& 0.496& 0.063& 0.054& 0.131& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.355& 5.418& 1.265& 0.408& 0.066& 0.031& 0.076& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.410& 6.382& 1.071& 0.355& 0.069& 0.013& 0.064& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.482& 3.025& 0.920& 0.332& 0.098& 0.011& 0.038& 10
11 0.000& 0.000& 0.000& 0.000& 0.148& 0.528& 1.981& 0.881& 0.297& 0.102& 0.005& 0.018& 11
12 0.000& 0.000& 0.000& 0.000& 0.156& 0.618& 1.423& 0.856& 0.294& 0.091& 0.004& 0.005& 12
13 0.000& 0.000& 0.000& 0.000& 0.088& 0.489& 1.113& 2.255& 0.221& 0.065& 0.000& 0.002& 13
14 0.000& 0.000& 0.000& 0.000& 0.636& 0.446& 0.943& 3.343& 0.209& 0.085& 0.042& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.662& 0.450& 0.840& 2.426& 0.145& 0.056& 0.249& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.603& 0.415& 0.802& 1.686& 0.089& 0.052& 0.125& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.580& 0.872& 0.889& 1.278& 0.097& 0.062& 0.124& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.643& 1.249& 0.994& 1.164& 0.087& 0.079& 0.132& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.493& 1.497& 0.961& 0.985& 0.081& 0.062& 0.072& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.558& 1.700& 0.702& 0.905& 0.071& 0.035& 0.050& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.452& 1.585& 0.482& 1.261& 0.059& 0.066& 0.031& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.349& 1.464& 0.372& 1.728& 0.048& 0.056& 0.018& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.312& 1.196& 0.381& 1.885& 0.085& 0.042& 0.019& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.292& 1.153& 0.862& 1.562& 0.082& 0.028& 0.034& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.271& 1.248& 1.303& 2.195& 0.069& 0.018& 0.032& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.270& 1.125& 1.235& 2.397& 0.100& 0.023& 0.016& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.293& 0.961& 0.912& 1.932& 0.116& 0.016& 0.004& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.304& 0.757& 0.796& 1.570& 0.084& 0.012& 0.001& 0.000& 28
29 0.000& 0.000& 0.000& 0.286& 0.655& 13.21 & 1.263& 0.133& 0.013& 0.129& 0.000& 29
30 0.000& 0.000& 0.000& 0.254& 0.629& 27.35 & 1.128& 0.166& 0.005& 0.182& 0.000& 30
31 0.000& 0.000& 0.278& 9.375& 1.217& 0.025& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.256& 0.750& 3.036& 1.865& 0.326& 0.057& 0.061& 0.028&
Median 0.000& 0.000& 0.000& 0.000& 0.271& 0.573& 1.113& 1.570& 0.156& 0.063& 0.045& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.662& 1.700& 27.35 & 6.297& 1.412& 0.118& 0.249& 0.188&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.218& 0.372& 0.856& 0.048& 0.005& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 7.929& 22.51 & 94.12 & 57.82 & 9.771& 1.775& 1.827& 0.863&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 0.539& & ... Relative Uncertainty +/-30%
Ann. Median 0.054&
Annual Total 196.6 &
Maximum Minimum
Daily 27.35 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1988
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 15.61 & 22.29 & 24.44 " 16.57 & 8.175& 0.298& 0.014& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 26.87 & 20.20 & 23.71 & 14.28 & 7.975& 0.301& 0.070& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 26.75 & 17.67 & 20.48 & 12.26 & 13.77 & 0.268& 0.052& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 16.32 & 15.55 & 18.88 & 10.90 & 10.62 & 0.282& 0.050& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 9.651& 15.00 & 16.25 & 22.68 & 9.169& 0.236& 0.017& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 7.618& 14.70 & 13.31 & 44.16 " 19.24 & 0.212& 0.009& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 7.109& 36.52 & 11.69 & 22.32 & 20.52 & 0.205& 0.002& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 5.870& 29.38 & 10.56 & 15.23 & 11.16 & 0.196& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 4.728& 19.15 & 9.908& 12.25 & 7.937& 0.150& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 48.53 & 16.31 & 16.56 & 9.810& 6.210& 0.127& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 21.57 & 13.95 & 17.12 & 7.999& 4.951& 0.102& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.289& 26.03 & 13.19 & 101.0 " 7.094& 3.966& 0.105& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 14.24 & 62.30 " 163.6 " 46.79 " 6.278& 3.143& 0.095& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 26.65 & 32.53 " 61.46 " 28.36 " 5.451& 2.533& 0.104& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 18.46 & 32.27 & 66.64 " 73.94 " 9.266& 2.105& 0.094& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 13.09 & 129.6 " 37.62 " 50.03 " 8.391& 1.779& 0.072& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 8.875& 50.49 " 87.08 " 27.66 " 5.927& 1.619& 0.076& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 6.968& 36.01 " 138.1 " 21.38 & 5.577& 1.501& 0.078& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 5.774& 26.51 " 69.11 " 19.62 & 5.510& 1.691& 0.076& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 4.420& 30.09 " 46.05 " 21.55 & 4.958& 1.909& 0.063& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 7.261& 19.66 & 34.39 " 18.35 & 5.893& 2.410& 0.079& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 6.136& 15.53 & 28.60 " 14.11 & 49.05 & 2.284& 0.070& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 3.980& 13.57 & 158.6 " 12.48 & 25.45 & 1.711& 0.062& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 3.191& 24.14 & 439.7 " 16.53 & 11.97 & 1.215& 0.042& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 2.798& 201.4 " 101.6 " 39.66 & 8.697& 0.923& 0.037& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 2.571& 118.8 " 63.97 " 25.93 & 7.588& 0.714& 0.024& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 2.458& 62.12 " 49.97 " 17.15 & 6.347& 0.547& 0.031& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 1.971& 42.79 " 66.71 " 13.07 & 7.708& 0.469& 0.019& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 1.541& 32.72 " 39.71 " 55.84 & 8.443& 0.394& 0.019& 0.000& 29
30 0.000& 0.000& 0.000& 1.316& 25.76 " 31.30 " 49.21 " 11.57 & 0.334& 0.013& 0.000& 30
31 0.000& 0.000& 1.992& 27.43 " 22.50 & 0.285& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 4.322& 39.10 & 62.76 & 27.68 & 12.99 & 4.879& 0.118& 0.007&
Median 0.000& 0.000& 0.000& 0.000& 1.992& 26.63 & 36.52 & 20.48 & 8.981& 2.284& 0.086& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 26.65 & 201.4 & 439.7 & 101.0 & 49.05 & 20.52 & 0.301& 0.070&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 4.728& 13.19 & 9.908& 4.958& 0.285& 0.013& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 134.0 &1173 &1946 & 858.1 & 389.6 & 151.3 & 3.536& 0.214&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 12.72 & " ... Relative Uncertainty +/-10%
Ann. Median 0.116& & ... Relative Uncertainty +/-30%
Annual Total 4655 &
Maximum Minimum
Daily 439.7 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1989
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 1.795& 8.550& 12.18 & 26.53 & 3.028& 0.683& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 2.077& 3.963& 10.66 & 36.52 & 3.732& 0.480& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 1.847& 3.277& 13.57 & 16.45 & 4.179& 0.365& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 1.478& 2.856& 13.53 & 11.56 & 5.058& 0.278& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 1.075& 2.147& 10.07 & 9.154& 10.26 & 0.221& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.819& 1.631& 9.504& 7.731& 8.458& 0.187& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.756& 1.638& 7.592& 12.79 & 10.94 & 0.149& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 1.163& 4.279& 6.520& 10.94 & 7.151& 0.115& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 1.366& 4.714& 5.891& 8.074& 5.165& 0.088& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 1.108& 3.002& 4.976& 5.797& 4.622& 0.074& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.872& 2.217& 4.266& 4.330& 3.489& 0.069& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.845& 1.759& 3.470& 3.445& 2.485& 0.068& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 1.354& 2.171& 3.158& 3.034& 2.066& 0.085& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 4.006& 16.06 & 3.125& 2.779& 2.904& 0.110& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 5.096& 13.84 & 3.013& 4.095& 3.783& 0.098& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 3.032& 8.697& 2.789& 4.978& 2.782& 0.072& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 2.005& 6.464& 5.790& 3.536& 2.238& 0.097& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 1.385& 4.546& 147.2 " 2.944& 4.389& 0.050& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 1.074& 4.264& 35.98 " 3.656& 5.819& 0.046& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.001& 0.968& 23.32 & 22.50 & 6.886& 4.197& 0.030& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.208& 0.741& 17.51 & 24.51 & 5.595& 3.127& 0.017& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.882& 0.645& 11.25 & 16.25 & 3.675& 2.979& 0.006& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.427& 0.616& 9.837& 12.30 & 3.012& 2.571& 0.001& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.336& 0.537& 35.94 & 17.77 & 3.000& 1.796& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.272& 0.494& 47.08 " 14.31 & 2.979& 1.607& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.419& 0.456& 20.43 & 9.868& 2.462& 2.280& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 1.548& 0.414& 26.78 & 8.232& 1.972& 2.403& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 5.075& 0.489& 44.04 " 7.404& 3.135& 1.802& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 3.444& 1.019& 22.34 & 11.27 & 4.770& 1.280& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 1.828& 16.24 & 18.35 & 42.50 " 3.530& 1.089& 0.000& 0.000& 30
31 0.000& 0.000& 1.620& 16.54 & 19.17 & 0.955& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.518& 1.859& 12.56 & 16.43 & 7.312& 3.827& 0.113& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 1.075& 8.550& 10.07 & 4.213& 3.028& 0.070& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 5.075& 16.24 & 47.08 & 147.2 & 36.52 & 10.94 & 0.683& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.414& 1.631& 2.789& 1.972& 0.955& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 16.06 & 55.77 & 389.5 & 509.4 & 219.4 & 118.6 & 3.389& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3.595& " ... Relative Uncertainty +/-10%
Ann. Median 0.046& & ... Relative Uncertainty +/-30%
Annual Total 1312 &
Maximum Minimum
Daily 147.2 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1990
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.028& 0.221& 0.953& 12.30 & 6.216& 2.245& 1.713& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.029& 0.177& 1.278& 131.0 & 5.641& 2.350& 1.210& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.034& 0.139& 1.238& 62.36 $ 5.376& 2.938& 0.816& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.088& 0.110& 1.049& 50.00 $ 4.807& 3.368& 0.626& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.068& 0.081& 0.970& 34.99 $ 4.185& 3.207& 0.467& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.072& 0.570& 0.845& 25.38 & 3.763& 2.947& 0.333& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.079& 6.400& 0.796& 19.94 & 3.506& 2.611& 0.255& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.070& 5.595& 0.771& 16.30 & 3.500& 2.468& 0.192& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.058& 8.741& 0.738& 14.57 & 3.364& 2.969& 0.149& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.045& 4.383& 0.738& 18.58 & 3.931& 9.426& 0.146& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.058& 7.182& 1.313& 19.62 & 3.857& 6.426& 0.120& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.076& 7.292& 6.664& 16.48 & 3.302& 4.846& 0.087& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.116& 3.800& 25.76 & 16.12 & 2.815& 4.044& 0.075& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.175& 4.073& 9.651& 16.40 & 2.391& 5.056& 0.098& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.219& 7.753& 22.50 & 12.84 & 2.021& 4.116& 0.099& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.127& 5.998& 67.75 & 10.83 & 2.151& 2.982& 0.105& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.115& 3.867& 28.14 & 19.06 & 4.516& 2.517& 0.083& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.308& 2.716& 7.677& 23.26 & 14.75 & 2.289& 0.062& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.247& 2.049& 9.599& 28.48 & 10.21 & 1.867& 0.070& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.164& 1.636& 16.22 & 16.63 & 6.423& 1.608& 0.067& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.132& 1.270& 433.6 $ 12.78 & 4.528& 1.353& 0.056& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.113& 1.052& 228.9 $ 10.78 & 3.686& 1.179& 0.052& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.090& 0.946& 187.1 $ 9.295& 4.894& 0.972& 0.066& 0.000& 23
24 0.000& 0.000& 0.000& 0.005& 0.074& 0.801& 164.6 $ 8.685& 34.84 & 0.809& 0.098& 0.000& 24
25 0.000& 0.000& 0.000& 0.022& 0.069& 0.724& 130.0 $ 8.302& 17.49 & 0.669& 0.077& 0.000& 25
26 0.000& 0.000& 0.000& 0.019& 0.058& 0.764& 71.89 $ 7.722& 8.461& 0.520& 0.056& 0.000& 26
27 0.000& 0.000& 0.000& 0.017& 0.103& 0.733& 50.54 $ 9.214& 5.783& 0.412& 0.030& 0.000& 27
28 0.000& 0.000& 0.000& 0.040& 0.214& 0.770& 36.95 $ 13.79 & 4.431& 0.344& 0.009& 0.000& 28
29 0.000& 0.000& 0.036& 0.124& 0.771& 35.31 $ 9.426& 3.471& 0.431& 0.001& 0.000& 29
30 0.000& 0.000& 0.025& 0.258& 0.871& 22.87 & 8.095& 2.749& 0.726& 0.000& 0.000& 30
31 0.000& 0.000& 0.292& 16.90 & 7.178& 1.868& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.006& 0.119& 2.716& 51.08 & 21.63 & 6.235& 2.567& 0.241& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.090& 1.161& 16.22 & 16.12 & 4.308& 2.350& 0.092& 0.000&
Maximum 0.000& 0.000& 0.000& 0.040& 0.308& 8.741& 433.6 & 131.0 & 34.84 & 9.426& 1.713& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.028& 0.081& 0.738& 7.178& 2.021& 0.344& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.165& 3.702& 81.49 &1583 & 670.4 & 187.1 & 79.56 & 7.217& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 7.159& $ ... Relative Uncertainty +/-20%
Ann. Median 0.090& & ... Relative Uncertainty +/-30%
Annual Total 2613 &
Maximum Minimum
Daily 433.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1991
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.535& 4.356& 284.7 " 13.82 & 6.720& 0.121& 0.009& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.366& 14.37 & 507.7 " 11.85 & 5.674& 0.093& 0.003& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.577& 34.80 & 203.6 " 10.14 & 4.141& 0.084& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 6.563& 31.64 & 181.2 " 10.69 & 3.572& 0.110& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 5.908& 25.35 & 122.3 " 8.448& 4.067& 0.195& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 2.397& 30.65 " 71.92 " 6.953& 4.078& 0.141& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 1.264& 19.41 & 50.92 " 9.491& 3.482& 0.361& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.763& 14.06 & 39.57 " 16.37 & 2.904& 0.564& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.509& 11.58 & 33.58 " 48.86 " 2.435& 0.370& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.494& 11.60 & 27.94 " 17.05 & 2.088& 0.282& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 1.292& 9.184& 24.58 " 11.27 & 1.790& 0.229& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 1.874& 7.535& 24.68 & 9.400& 1.522& 0.242& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 1.886& 8.391& 19.92 & 11.54 & 1.229& 0.318& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 1.943& 8.875& 17.58 & 26.11 & 1.046& 0.357& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 3.101& 8.390& 15.14 & 21.92 & 0.994& 0.262& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 2.746& 22.60 & 13.64 & 30.23 & 0.939& 0.184& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 4.621& 20.74 & 12.35 & 16.60 & 0.979& 0.150& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 5.367& 18.09 & 77.26 & 71.16 & 0.901& 0.170& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 4.410& 12.32 & 33.89 " 152.2 " 1.683& 0.183& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 3.110& 80.89 & 31.92 " 44.85 " 2.379& 0.169& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 2.216& 89.70 " 22.10 & 29.58 " 1.774& 0.094& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 2.183& 76.82 " 18.69 & 22.34 & 1.133& 0.083& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 9.847& 51.66 " 15.01 & 16.06 & 0.820& 0.089& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 7.752& 72.18 " 12.49 & 12.72 & 0.564& 0.088& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 4.178& 45.31 " 10.99 & 10.79 & 0.413& 0.044& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 2.971& 35.46 " 43.45 & 9.077& 0.334& 0.039& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 12.43 & 36.44 " 35.23 " 7.628& 0.260& 0.038& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 12.92 & 27.31 " 21.59 & 6.218& 0.219& 0.033& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 8.167& 97.76 " 17.91 & 5.394& 0.179& 0.025& 0.000& 29
30 0.000& 0.000& 0.000& 2.078& 5.494& 111.2 " 14.07 & 5.131& 0.139& 0.018& 0.000& 30
31 0.000& 0.000& 1.132& 64.20 " 11.94 & 0.115& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.104& 3.930& 35.58 & 65.09 & 22.46 & 1.889& 0.171& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 2.859& 25.35 & 24.68 & 12.29 & 1.229& 0.146& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 2.078& 12.92 & 111.2 & 507.7 & 152.2 & 6.720& 0.564& 0.009&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.366& 4.356& 10.99 & 5.131& 0.115& 0.018& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 3.210& 117.9 &1103 &2018 & 673.9 & 58.57 & 5.135& 0.012&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 10.90 & " ... Relative Uncertainty +/-10%
Ann. Median 0.033& & ... Relative Uncertainty +/-30%
Annual Total 3979 &
Maximum Minimum
Daily 507.7 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1992
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 1.428& 46.40 " 12.91 & 117.3 " 9.168& 0.544& 0.441& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 1.200& 30.83 " 18.79 & 79.81 " 10.41 & 0.430& 0.510& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.992& 26.09 " 34.56 " 146.7 " 17.57 & 0.337& 0.706& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.843& 21.06 & 124.3 " 98.37 " 12.07 & 0.273& 0.602& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.733& 21.06 & 83.26 " 101.6 " 11.96 & 0.237& 0.440& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.666& 17.50 & 57.98 " 111.9 " 51.95 & 0.208& 0.287& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.682& 16.66 & 55.92 " 49.54 " 55.91 " 0.236& 0.177& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.665& 18.79 & 33.56 " 62.22 " 21.86 & 0.239& 0.132& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.618& 14.18 & 103.2 " 154.0 " 15.73 & 0.232& 0.147& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.561& 21.16 & 78.86 " 55.22 " 12.65 & 0.245& 0.194& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.662& 19.26 & 42.22 " 42.38 " 10.65 & 0.249& 0.160& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 4.242& 14.15 & 30.39 " 31.53 " 9.833& 0.194& 0.193& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 5.560& 82.44 & 24.71 " 25.85 " 8.610& 0.208& 0.211& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 3.921& 60.66 " 27.27 " 22.76 & 6.945& 0.390& 0.053& 14
15 0.000& 0.000& 0.000& 0.000& 1.049& 6.942& 28.80 " 24.88 " 20.95 & 6.322& 1.122& 0.067& 15
16 0.000& 0.000& 0.000& 0.000& 0.908& 10.55 & 24.49 & 33.24 " 22.25 & 5.836& 3.492& 0.078& 16
17 0.000& 0.000& 0.000& 0.000& 0.419& 17.28 & 87.68 " 23.05 & 53.65 " 5.396& 2.077& 0.060& 17
18 0.000& 0.000& 0.000& 0.000& 0.233& 19.64 & 36.55 " 19.11 & 54.40 " 4.631& 1.289& 0.052& 18
19 0.000& 0.000& 0.000& 0.000& 0.135& 8.283& 62.26 " 18.99 & 24.95 & 3.933& 1.528& 0.049& 19
20 0.000& 0.000& 0.000& 0.000& 0.083& 5.591& 42.20 " 16.28 & 30.20 & 3.298& 19.15 & 0.036& 20
21 0.000& 0.000& 0.000& 0.000& 0.079& 19.84 & 25.75 " 14.10 & 28.87 " 2.708& 14.27 & 0.021& 21
22 0.000& 0.000& 0.000& 0.000& 0.112& 14.37 & 20.99 & 13.13 & 30.13 " 2.230& 5.659& 0.008& 22
23 0.000& 0.000& 0.000& 0.000& 0.303& 7.256& 17.72 & 13.09 & 35.03 " 1.942& 3.160& 0.001& 23
24 0.000& 0.000& 0.000& 0.000& 4.236& 12.36 & 15.64 & 20.76 & 21.72 & 1.678& 2.108& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 7.377& 19.27 & 19.74 & 19.91 & 17.22 & 1.526& 1.452& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 3.831& 32.98 & 25.57 " 32.71 " 16.32 & 1.412& 1.076& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 2.139& 32.77 & 26.44 " 49.47 " 26.28 & 1.274& 0.770& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 1.498& 113.3 " 30.85 " 236.7 " 16.86 & 1.207& 0.536& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 1.326& 41.03 " 26.11 & 100.6 " 12.34 & 1.108& 0.435& 0.000& 29
30 0.000& 0.000& 0.000& 1.581& 60.49 " 16.89 & 64.05 " 10.48 & 0.891& 0.424& 0.000& 30
31 0.000& 0.000& 1.806& 14.34 & 172.6 " 0.668& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.875& 14.82 & 30.07 & 51.63 & 50.69 & 9.722& 2.086& 0.149&
Median 0.000& 0.000& 0.000& 0.000& 0.083& 6.266& 24.49 & 32.71 & 30.87 & 5.836& 0.486& 0.060&
Maximum 0.000& 0.000& 0.000& 0.000& 7.377& 113.3 & 87.68 & 236.7 & 154.0 & 55.91 & 19.15 & 0.706&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.561& 14.15 & 12.91 & 10.48 & 0.668& 0.194& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 27.11 & 444.7 & 932.3 &1601 &1521 & 301.4 & 62.57 & 4.625&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 13.37 & " ... Relative Uncertainty +/-10%
Ann. Median 0.438& & ... Relative Uncertainty +/-30%
Annual Total 4894 &
Maximum Minimum
Daily 236.7 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1993
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.183& 0.241& 3.999& 6.953& 16.37 & 19.67 & 5.642& 0.576& 0.121& 1
2 0.000& 0.000& 0.000& 0.168& 0.407& 3.008& 48.99 & 11.89 & 16.49 & 14.54 & 0.427& 0.124& 2
3 0.000& 0.000& 0.000& 0.318& 3.207& 2.417& 18.46 & 9.682& 13.22 & 9.368& 0.318& 0.115& 3
4 0.000& 0.000& 0.000& 0.403& 2.881& 1.958& 16.09 & 21.78 & 29.03 & 5.565& 0.237& 0.048& 4
5 0.000& 0.000& 0.000& 0.413& 5.671& 1.581& 14.90 & 28.33 & 24.86 & 4.215& 0.183& 0.050& 5
6 0.000& 0.000& 0.000& 0.182& 4.684& 1.376& 10.38 & 130.0 " 15.98 & 3.427& 0.400& 0.056& 6
7 0.000& 0.000& 0.000& 0.112& 2.606& 1.196& 8.159& 50.33 " 16.60 & 3.553& 0.508& 0.049& 7
8 0.000& 0.000& 0.000& 0.071& 1.611& 1.103& 6.743& 39.18 " 23.17 & 3.723& 0.299& 0.036& 8
9 0.000& 0.000& 0.000& 0.046& 1.042& 1.442& 6.126& 34.58 " 15.14 & 2.990& 0.258& 0.016& 9
10 0.000& 0.000& 0.000& 0.063& 0.762& 3.880& 21.17 & 21.61 & 10.45 & 2.308& 0.288& 0.010& 10
11 0.000& 0.000& 0.000& 0.072& 0.599& 4.009& 52.89 " 19.16 & 8.497& 1.914& 0.698& 0.007& 11
12 0.000& 0.000& 0.000& 0.071& 0.511& 2.848& 56.08 " 76.98 " 14.55 & 1.674& 0.949& 0.005& 12
13 0.000& 0.000& 0.000& 0.056& 0.434& 2.131& 27.16 " 45.44 " 20.28 & 1.381& 0.689& 0.003& 13
14 0.000& 0.000& 0.000& 0.036& 0.350& 1.623& 21.76 & 26.02 " 11.73 & 1.165& 0.446& 0.001& 14
15 0.000& 0.000& 0.000& 0.035& 0.300& 1.335& 19.19 & 30.43 " 10.36 & 1.008& 1.266& 0.000& 15
16 0.000& 0.000& 0.000& 0.037& 0.255& 1.272& 25.91 & 30.33 " 30.55 & 1.099& 2.740& 0.000& 16
17 0.000& 0.000& 0.000& 0.046& 0.221& 1.781& 18.76 & 20.24 & 19.25 & 1.384& 3.923& 0.000& 17
18 0.000& 0.000& 0.000& 0.047& 0.444& 1.834& 12.51 & 17.05 & 15.31 & 1.217& 1.803& 0.000& 18
19 0.000& 0.000& 0.310& 0.067& 3.152& 1.801& 10.40 & 14.87 & 18.23 & 0.929& 0.991& 0.000& 19
20 0.000& 0.000& 86.43 & 0.075& 3.319& 1.699& 9.130& 12.95 & 13.01 & 0.782& 0.587& 0.000& 20
21 0.000& 0.000& 12.12 & 0.065& 2.114& 1.663& 8.253& 11.23 & 10.38 & 0.725& 0.363& 0.000& 21
22 0.000& 0.000& 4.190& 0.023& 1.361& 1.577& 9.280& 9.547& 8.084& 0.720& 0.232& 0.000& 22
23 0.000& 0.000& 1.871& 0.020& 0.927& 1.380& 12.48 & 8.620& 6.262& 0.761& 0.163& 0.000& 23
24 0.000& 0.000& 1.007& 0.026& 0.788& 1.212& 12.17 & 7.949& 5.090& 0.837& 0.095& 0.000& 24
25 0.000& 0.000& 0.612& 0.031& 0.730& 1.128& 9.123& 56.42 & 4.338& 1.096& 0.073& 0.000& 25
26 0.000& 0.000& 0.441& 0.037& 0.658& 1.370& 10.08 & 68.74 " 3.837& 1.079& 0.074& 0.000& 26
27 0.000& 0.000& 0.344& 0.035& 0.632& 9.334& 12.29 & 28.94 " 3.304& 0.896& 0.062& 0.000& 27
28 0.000& 0.000& 0.290& 0.037& 9.279& 16.49 & 10.80 & 20.56 & 2.779& 0.692& 0.094& 0.000& 28
29 0.000& 0.226& 0.043& 21.10 & 9.358& 29.02 & 24.90 & 2.551& 0.925& 0.127& 0.000& 29
30 0.000& 0.171& 0.054& 9.763& 8.323& 35.97 " 36.15 " 4.386& 0.945& 0.085& 0.000& 30
31 0.000& 0.191& 5.765& 23.60 & 29.61 & 0.767& 0.000& 31
Mean 0.000& 0.000& 3.491& 0.096& 2.768& 3.137& 18.87 & 30.96 & 13.25 & 2.494& 0.632& 0.021&
Median 0.000& 0.000& 0.000& 0.055& 0.927& 1.740& 12.51 & 24.90 & 13.11 & 1.165& 0.341& 0.000&
Maximum 0.000& 0.000& 86.43 & 0.413& 21.10 & 16.49 & 56.08 & 130.0 & 30.55 & 14.54 & 3.923& 0.124&
Minimum 0.000& 0.000& 0.000& 0.020& 0.221& 1.103& 6.126& 7.949& 2.551& 0.692& 0.062& 0.000&
Total 0.000& 0.000& 108.2 & 2.871& 85.82 & 94.12 & 584.8 & 959.9 & 397.4 & 77.33 & 18.96 & 0.641&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 6.384& " ... Relative Uncertainty +/-10%
Ann. Median 0.698& & ... Relative Uncertainty +/-30%
Annual Total 2330 &
Maximum Minimum
Daily 130.0 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1994
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 6.725& 45.77 & 4.408& 9.345& 1.442& 0.108& 0.011& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 17.48 & 24.25 & 4.035& 10.46 & 1.627& 0.096& 0.005& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 10.54 & 15.35 & 4.963& 17.11 & 2.970& 0.096& 0.001& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 6.154& 23.45 & 259.3 " 10.02 & 3.710& 0.100& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 4.653& 19.73 & 105.2 " 7.901& 2.430& 0.095& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 3.368& 26.13 & 51.02 " 6.120& 1.785& 0.131& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 2.476& 19.76 & 34.50 " 6.465& 1.372& 0.091& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 2.175& 26.05 & 25.96 " 6.256& 0.968& 0.058& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 2.978& 22.83 & 28.64 " 4.604& 0.748& 0.045& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 3.168& 15.92 & 86.46 " 5.480& 0.605& 0.038& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 2.322& 12.16 & 122.7 " 25.41 & 0.511& 0.048& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 2.183& 9.764& 55.47 " 11.99 & 0.446& 0.065& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 2.033& 12.83 & 34.27 " 7.663& 0.578& 0.071& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 1.590& 18.72 & 24.48 & 6.678& 3.283& 0.066& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 1.354& 11.62 & 19.87 & 5.872& 6.363& 0.052& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 1.228& 11.49 & 16.62 & 4.494& 3.521& 0.036& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 1.094& 23.86 & 14.19 & 3.795& 2.222& 0.025& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.965& 15.98 & 13.19 & 3.497& 1.497& 0.028& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.913& 11.69 & 11.52 & 3.311& 0.969& 0.034& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 1.154& 9.335& 9.534& 2.869& 0.624& 0.035& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 4.266& 7.854& 8.697& 2.475& 0.437& 0.029& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 6.477& 9.575& 10.89 & 2.112& 0.350& 0.020& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 3.677& 11.74 & 9.765& 1.792& 0.260& 0.009& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.037& 2.692& 9.874& 7.815& 1.487& 0.198& 0.005& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.482& 2.628& 8.931& 6.602& 1.355& 0.152& 0.010& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.184& 2.548& 6.728& 5.581& 1.243& 0.126& 0.035& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.350& 6.362& 5.532& 6.550& 1.132& 0.150& 0.042& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.218& 8.497& 5.066& 8.364& 1.039& 0.153& 0.037& 0.000& 28
29 0.000& 0.000& 0.000& 3.433& 4.983& 5.143& 6.151& 0.990& 0.168& 0.032& 0.000& 29
30 0.000& 0.000& 0.000& 23.99 & 3.964& 5.074& 5.083& 1.025& 0.100& 0.020& 0.000& 30
31 0.000& 0.000& 8.535& 4.534& 7.093& 0.133& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 1.201& 4.022& 14.73 & 32.54 & 5.800& 1.287& 0.052& 0.001&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 2.835& 11.74 & 11.52 & 4.549& 0.624& 0.040& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 23.99 & 17.48 & 45.77 & 259.3 & 25.41 & 6.363& 0.131& 0.011&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.913& 4.534& 4.035& 0.990& 0.100& 0.005& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 37.22 & 120.6 & 456.7 &1009 & 174.0 & 39.90 & 1.555& 0.017&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.038& " ... Relative Uncertainty +/-10%
Ann. Median 0.032& & ... Relative Uncertainty +/-30%
Annual Total 1839 &
Maximum Minimum
Daily 259.3 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1995
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.424& 2.131& 21.74 & 6.088& 2.545& 0.160& 0.025& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.290& 2.030& 16.50 & 6.023& 4.270& 0.434& 0.025& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.186& 1.932& 13.19 & 64.44 & 3.206& 3.440& 0.023& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.131& 1.789& 10.95 & 44.46 " 2.218& 1.774& 0.022& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.120& 1.633& 9.089& 23.58 & 1.722& 0.820& 0.019& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.585& 3.665& 7.962& 85.78 & 1.452& 0.506& 0.016& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 5.682& 5.212& 6.996& 56.88 " 1.221& 0.399& 0.013& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 16.74 & 26.53 & 6.324& 30.23 " 1.081& 0.324& 0.022& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 8.856& 30.36 & 20.70 & 33.86 " 0.958& 0.246& 0.023& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 5.032& 14.92 & 23.05 & 25.24 & 0.847& 0.172& 0.018& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 3.302& 10.70 & 15.82 & 16.90 & 0.881& 0.132& 0.012& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 2.238& 11.11 & 26.16 & 13.85 & 1.125& 0.101& 0.006& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 1.645& 10.93 & 50.03 " 13.06 & 1.093& 0.079& 0.005& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 1.827& 7.884& 23.50 & 11.47 & 0.846& 0.061& 0.012& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 3.056& 7.797& 15.44 & 10.32 & 0.688& 0.059& 0.019& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 2.176& 8.359& 12.36 & 8.800& 0.613& 0.054& 0.009& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 1.484& 6.319& 19.50 & 7.556& 1.031& 0.061& 0.004& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 1.128& 4.935& 21.23 & 7.101& 10.06 & 0.107& 0.002& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.918& 5.652& 13.64 & 6.751& 7.147& 0.064& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.797& 46.20 & 27.54 & 8.957& 3.499& 0.060& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.738& 55.91 " 16.76 & 8.922& 1.969& 0.080& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 1.047& 29.65 " 13.76 & 6.611& 1.235& 0.066& 0.002& 22
23 0.000& 0.000& 0.000& 0.000& 0.269& 4.508& 20.03 & 12.86 & 5.357& 0.845& 0.072& 0.025& 23
24 0.000& 0.000& 0.000& 0.000& 0.309& 5.732& 26.59 & 22.34 & 4.576& 0.615& 0.107& 0.154& 24
25 0.000& 0.000& 0.000& 0.000& 0.162& 4.712& 60.56 " 21.82 & 3.938& 0.457& 0.050& 0.280& 25
26 0.000& 0.000& 0.000& 0.000& 0.377& 8.781& 30.24 " 16.57 & 3.260& 0.346& 0.027& 0.061& 26
27 0.000& 0.000& 0.000& 0.000& 0.326& 6.548& 20.91 & 12.93 & 2.790& 0.254& 0.030& 0.104& 27
28 0.000& 0.000& 0.000& 0.000& 0.672& 4.495& 18.87 & 10.09 & 2.566& 0.203& 0.039& 0.312& 28
29 0.000& 0.000& 0.000& 0.701& 3.056& 44.28 & 8.413& 2.391& 0.164& 0.026& 0.301& 29
30 0.000& 0.000& 0.000& 1.168& 2.406& 48.81 " 7.264& 2.206& 0.173& 0.021& 0.311& 30
31 0.000& 0.000& 0.771& 26.60 " 6.405& 0.146& 0.292& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.153& 3.288& 19.11 & 16.48 & 17.47 & 1.707& 0.319& 0.068&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 2.207& 11.11 & 15.44 & 8.861& 1.031& 0.079& 0.019&
Maximum 0.000& 0.000& 0.000& 0.000& 1.168& 16.74 & 60.56 & 50.03 & 85.78 & 10.06 & 3.440& 0.312&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.120& 1.633& 6.324& 2.206& 0.146& 0.021& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 4.755& 98.64 & 592.6 & 510.9 & 524.0 & 52.91 & 9.571& 2.119&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4.919& " ... Relative Uncertainty +/-10%
Ann. Median 0.101& & ... Relative Uncertainty +/-30%
Annual Total 1795 &
Maximum Minimum
Daily 85.78 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1996
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.291& 0.000& 0.000& 0.000& 0.000& 2.323& 16.75 & 92.56 " 8.836& 41.16 " 2.445& 0.078& 1
2 0.292& 0.000& 0.000& 0.000& 0.000& 1.701& 10.64 & 57.37 " 7.580& 29.04 " 1.996& 0.055& 2
3 0.227& 0.000& 0.000& 0.000& 0.000& 0.736& 53.54 & 44.91 " 6.821& 22.27 & 1.587& 0.035& 3
4 0.169& 0.000& 0.000& 0.000& 0.000& 0.359& 22.75 & 49.14 " 6.108& 17.58 & 1.191& 0.028& 4
5 0.146& 0.000& 0.000& 0.000& 0.000& 0.212& 13.74 & 63.44 " 5.197& 13.90 & 0.892& 0.028& 5
6 0.143& 0.000& 0.000& 0.000& 0.000& 0.151& 11.03 & 44.14 " 8.750& 11.68 & 0.817& 0.029& 6
7 0.078& 0.000& 0.000& 0.000& 0.000& 0.183& 9.860& 46.79 " 9.709& 9.551& 1.041& 0.035& 7
8 0.059& 0.000& 0.000& 0.000& 0.000& 0.198& 47.22 & 34.03 " 8.557& 7.802& 1.500& 0.031& 8
9 0.042& 0.000& 0.000& 0.000& 0.000& 0.162& 23.08 & 27.03 " 7.863& 8.263& 0.996& 0.038& 9
10 0.027& 0.000& 0.000& 0.000& 0.000& 0.237& 14.85 & 29.42 & 147.7 & 9.134& 0.608& 0.017& 10
11 0.015& 0.000& 0.000& 0.000& 0.000& 0.163& 11.33 & 53.98 " 85.47 " 9.892& 0.415& 0.031& 11
12 0.008& 0.000& 0.000& 0.000& 0.000& 0.304& 9.219& 31.21 " 35.59 " 7.402& 0.314& 0.821& 12
13 0.003& 0.000& 0.000& 0.000& 0.000& 0.538& 8.224& 50.57 " 24.01 & 5.520& 0.228& 1.938& 13
14 0.001& 0.000& 0.000& 0.000& 0.000& 0.477& 7.503& 30.79 " 30.15 & 4.666& 0.180& 1.932& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.775& 7.457& 33.32 " 228.5 " 4.664& 0.318& 1.004& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 3.288& 20.13 & 24.57 & 105.5 " 4.291& 0.646& 0.659& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 7.487& 103.7 " 19.78 & 50.42 " 3.420& 1.425& 0.340& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 37.11 " 86.25 " 16.78 & 62.12 " 2.945& 0.838& 0.166& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 21.78 & 55.82 " 14.44 & 37.64 " 2.522& 0.444& 0.095& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 17.91 & 32.22 " 18.94 & 28.20 " 2.292& 0.272& 0.066& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 36.06 " 83.27 " 25.77 & 23.08 & 40.44 & 0.165& 0.052& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 21.01 & 192.9 " 16.33 & 213.3 " 72.49 " 0.107& 0.045& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 11.76 & 121.4 " 14.05 & 62.35 " 34.51 " 0.074& 0.033& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 9.051& 156.5 " 33.57 & 38.25 " 50.44 " 0.051& 0.025& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 6.234& 106.5 " 23.00 & 30.98 " 16.23 & 0.036& 0.018& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 4.897& 56.92 " 15.61 & 37.64 " 9.727& 0.030& 0.011& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 5.877& 286.6 " 13.64 & 149.2 " 6.920& 0.031& 0.007& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 9.477& 142.5 " 13.17 & 175.3 " 5.288& 0.040& 0.002& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 8.144& 83.98 " 11.55 & 99.86 " 4.019& 0.038& 0.001& 29
30 0.000& 0.000& 0.000& 0.000& 23.46 & 169.4 " 10.92 & 61.18 " 3.116& 0.090& 0.000& 30
31 0.000& 0.000& 5.025& 172.8 " 9.990& 2.798& 0.000& 31
Mean 0.048& 0.000& 0.000& 0.000& 0.162& 7.735& 68.97 & 31.32 & 59.86 & 14.97 & 0.627& 0.246&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 2.805& 47.22 & 27.03 & 36.61 & 8.263& 0.367& 0.035&
Maximum 0.292& 0.000& 0.000& 0.000& 5.025& 37.11 & 286.6 & 92.56 & 228.5 & 72.49 & 2.445& 1.938&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.151& 7.457& 9.990& 5.197& 2.292& 0.030& 0.000&
Total 1.501& 0.000& 0.000& 0.000& 5.025& 232.1 &2138 & 970.8 &1796 & 464.0 & 18.82 & 7.620&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 15.39 & " ... Relative Uncertainty +/-10%
Ann. Median 0.164& & ... Relative Uncertainty +/-30%
Annual Total 5634 &
Maximum Minimum
Daily 286.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1997
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 8.283& 5.597& 8.263& 32.34 & 2.890& 0.047& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 9.989& 4.605& 7.493& 66.35 " 2.862& 0.058& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 22.32 & 4.066& 7.342& 45.56 " 2.659& 0.019& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 22.13 & 4.898& 119.1 & 27.16 " 2.993& 0.015& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 20.44 & 5.723& 72.95 " 24.21 & 2.403& 0.021& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 15.53 & 18.00 & 39.10 " 63.25 " 1.928& 0.032& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 14.34 & 33.69 " 35.82 " 33.00 " 1.510& 0.049& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 13.57 & 18.31 & 30.33 " 21.61 & 1.311& 0.039& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 60.14 " 29.91 & 120.5 " 21.09 & 1.409& 0.018& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 27.15 & 18.76 & 101.4 " 19.08 & 3.434& 0.019& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 43.56 " 13.65 & 46.80 " 18.40 & 4.584& 0.037& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 25.02 & 10.72 & 36.60 " 18.60 & 2.164& 0.039& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 18.68 & 195.9 & 28.51 " 28.42 & 1.359& 0.020& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 14.49 & 101.0 " 26.76 & 23.17 & 1.017& 0.017& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 11.42 & 49.59 " 85.20 " 16.60 & 0.801& 0.024& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 9.335& 36.34 " 53.76 " 12.62 & 0.648& 0.029& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.659& 7.738& 27.29 " 31.85 " 9.802& 0.542& 0.028& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 21.17 & 6.434& 21.51 & 24.07 & 8.334& 0.442& 0.016& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 12.22 & 16.66 & 17.99 & 19.64 & 7.756& 0.352& 0.004& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 4.242& 43.76 " 15.24 & 16.31 & 7.980& 0.259& 0.002& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 2.626& 36.37 " 12.78 & 14.19 & 6.519& 0.182& 0.018& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 1.553& 19.76 & 11.02 & 13.00 & 5.501& 0.138& 0.032& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 1.086& 22.40 & 9.701& 12.68 & 4.677& 0.133& 0.015& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.914& 15.99 & 9.207& 11.42 & 7.666& 0.100& 0.009& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 32.50 & 12.63 & 16.01 & 9.641& 9.013& 0.090& 0.005& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 11.12 & 10.31 & 16.99 & 8.337& 5.698& 0.072& 0.004& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 4.452& 8.446& 20.40 & 12.19 & 4.915& 0.058& 0.003& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 2.823& 7.578& 17.29 & 81.71 " 3.926& 0.050& 0.001& 0.000& 28
29 0.000& 0.000& 0.000& 2.010& 7.125& 12.63 & 101.6 " 3.447& 0.044& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 1.587& 6.589& 11.44 & 37.71 " 2.949& 0.044& 0.000& 0.000& 30
31 0.000& 0.000& 5.862& 9.571& 25.31 & 0.040& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 3.381& 18.61 & 25.16 & 39.99 & 18.65 & 1.178& 0.021& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 15.01 & 16.01 & 28.51 & 14.61 & 0.648& 0.018& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 32.50 & 60.14 & 195.9 & 120.5 & 66.35 & 4.584& 0.058& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 6.434& 4.066& 7.342& 2.949& 0.040& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 104.8 & 558.2 & 779.8 &1240 & 559.6 & 36.52 & 0.617& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 8.984& " ... Relative Uncertainty +/-10%
Ann. Median 0.019& & ... Relative Uncertainty +/-30%
Annual Total 3279 &
Maximum Minimum
Daily 195.9 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1998
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.018& 0.121& 1.093& 5.807& 35.19 " 121.1 " 22.58 & 0.523& 0.103& 1
2 0.000& 0.000& 0.000& 0.009& 0.096& 0.969& 5.359& 19.51 & 170.6 " 30.52 & 0.414& 0.068& 2
3 0.000& 0.000& 0.000& 0.003& 0.074& 1.085& 5.754& 16.82 & 129.4 " 15.87 & 0.319& 0.056& 3
4 0.000& 0.000& 0.000& 0.000& 0.068& 1.586& 19.41 & 12.50 & 138.4 " 10.32 & 0.255& 0.070& 4
5 0.000& 0.000& 0.000& 0.000& 0.072& 5.646& 19.75 & 26.28 & 67.89 " 8.244& 0.224& 0.095& 5
6 0.000& 0.000& 0.000& 0.000& 0.064& 4.607& 26.61 & 32.88 & 49.56 " 7.855& 0.208& 0.047& 6
7 0.000& 0.000& 0.000& 0.000& 0.055& 2.540& 41.02 " 18.47 & 36.76 " 6.695& 0.178& 0.047& 7
8 0.000& 0.000& 0.000& 0.087& 0.049& 19.27 & 21.23 & 16.41 & 27.85 " 5.745& 0.161& 0.047& 8
9 0.000& 0.000& 0.000& 0.114& 0.144& 12.41 & 16.47 & 15.49 & 21.81 & 4.886& 0.138& 0.045& 9
10 0.000& 0.000& 0.000& 0.100& 0.927& 37.84 & 12.90 & 13.50 & 19.25 & 6.262& 0.148& 0.046& 10
11 0.000& 0.000& 0.000& 0.114& 1.626& 19.89 & 11.14 & 21.47 & 18.40 & 6.382& 0.108& 0.067& 11
12 0.000& 0.000& 0.000& 0.109& 1.014& 11.52 & 9.549& 18.30 & 15.78 & 6.586& 0.091& 0.035& 12
13 0.000& 0.000& 0.000& 0.095& 0.678& 7.958& 8.084& 14.89 & 19.56 & 5.502& 0.132& 0.021& 13
14 0.000& 0.000& 0.000& 0.067& 0.488& 6.237& 7.361& 13.29 & 15.86 & 4.713& 0.135& 0.014& 14
15 0.000& 0.000& 0.000& 0.072& 0.414& 4.512& 6.445& 10.68 & 13.63 & 3.920& 0.101& 0.018& 15
16 0.000& 0.000& 0.000& 0.225& 0.377& 3.734& 5.580& 10.22 & 12.45 & 3.293& 0.149& 0.013& 16
17 0.000& 0.000& 0.000& 0.275& 0.307& 8.935& 5.224& 17.97 & 12.04 & 3.571& 0.225& 0.004& 17
18 0.000& 0.000& 0.000& 3.574& 0.385& 43.81 " 7.473& 62.91 & 14.59 & 4.966& 0.325& 0.000& 18
19 0.000& 0.000& 0.000& 2.389& 0.477& 48.15 " 12.18 & 51.68 " 10.76 & 3.755& 0.213& 0.000& 19
20 0.000& 0.000& 0.000& 1.583& 1.237& 21.27 & 8.809& 37.28 " 8.687& 2.722& 0.492& 0.000& 20
21 0.000& 0.000& 0.116& 1.028& 1.745& 13.16 & 15.97 & 26.48 " 20.64 & 2.191& 0.452& 0.000& 21
22 0.000& 0.000& 0.072& 0.686& 5.010& 9.882& 30.48 & 19.87 & 45.15 " 1.889& 0.315& 0.000& 22
23 0.000& 0.000& 0.036& 0.511& 2.885& 7.928& 15.36 & 15.44 & 19.97 & 1.617& 0.256& 0.000& 23
24 0.000& 0.000& 0.017& 0.420& 1.659& 6.463& 11.38 & 18.41 & 12.73 & 1.281& 0.195& 0.000& 24
25 0.000& 0.000& 0.065& 0.330& 1.186& 5.542& 10.16 & 15.00 & 17.05 & 1.057& 0.169& 0.000& 25
26 0.000& 0.000& 0.061& 0.276& 1.120& 8.061& 18.27 & 10.95 & 13.20 & 0.931& 0.138& 0.000& 26
27 0.000& 0.000& 0.092& 0.244& 1.836& 14.35 & 13.12 & 23.61 & 18.20 & 0.924& 0.097& 0.000& 27
28 0.000& 0.000& 0.107& 0.216& 2.618& 14.31 & 9.840& 45.07 " 13.59 & 0.880& 0.095& 0.000& 28
29 0.000& 0.105& 0.168& 3.235& 9.234& 8.516& 705.1 " 10.36 & 0.831& 0.094& 0.000& 29
30 0.000& 0.083& 0.151& 2.031& 6.966& 7.291& 237.0 " 11.05 & 0.760& 0.091& 0.000& 30
31 0.000& 0.048& 1.407& 9.240& 103.6 " 0.653& 0.000& 31
Mean 0.000& 0.000& 0.026& 0.429& 1.078& 11.97 & 13.09 & 54.40 & 36.88 & 5.722& 0.215& 0.026&
Median 0.000& 0.000& 0.000& 0.133& 0.678& 8.010& 10.16 & 18.47 & 18.30 & 3.920& 0.173& 0.013&
Maximum 0.000& 0.000& 0.116& 3.574& 5.010& 48.15 & 41.02 & 705.1 & 170.6 & 30.52 & 0.523& 0.103&
Minimum 0.000& 0.000& 0.000& 0.000& 0.049& 0.969& 5.224& 10.22 & 8.687& 0.653& 0.091& 0.000&
Total 0.000& 0.000& 0.803& 12.87 & 33.40 & 359.0 & 405.8 &1686 &1106 & 177.4 & 6.438& 0.798&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 10.38 & " ... Relative Uncertainty +/-10%
Ann. Median 0.414& & ... Relative Uncertainty +/-30%
Annual Total 3789 &
Maximum Minimum
Daily 705.1 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 1999
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 3.284& 13.63 & 21.64 & 12.25 & 17.19 & 0.902& 0.069& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 3.651& 11.33 & 18.36 & 13.89 & 9.377& 0.709& 0.073& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 3.097& 9.393& 16.73 & 38.39 " 6.033& 0.557& 0.072& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 2.467& 13.80 & 14.41 & 34.91 " 4.716& 1.191& 0.087& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 2.098& 30.67 " 12.33 & 22.75 & 4.122& 23.20 & 0.120& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 1.693& 25.89 " 18.46 & 18.24 & 5.032& 6.783& 0.150& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 1.429& 20.65 & 23.18 & 14.27 & 32.35 & 3.743& 0.122& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 1.244& 17.79 & 15.12 & 11.79 & 52.22 " 2.294& 0.071& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 1.282& 13.08 & 13.31 & 9.772& 19.19 & 1.588& 0.081& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 1.353& 10.97 & 70.32 & 9.017& 11.42 & 1.102& 0.104& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 2.448& 9.619& 127.7 " 41.84 & 8.652& 0.792& 0.128& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 7.587& 8.437& 51.84 " 24.77 & 7.234& 0.534& 0.212& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 4.633& 12.32 & 32.65 " 19.55 & 10.72 & 0.388& 3.104& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 3.680& 91.55 " 25.71 " 64.56 " 91.97 " 0.322& 5.775& 14
15 0.000& 0.000& 0.000& 0.000& 0.001& 4.757& 95.25 " 34.93 " 63.39 " 30.21 & 0.288& 1.844& 15
16 0.000& 0.000& 0.000& 0.000& 0.009& 13.87 & 164.4 " 53.27 " 39.52 " 41.82 & 0.269& 0.804& 16
17 0.000& 0.000& 0.000& 0.000& 0.009& 7.574& 68.85 " 74.31 " 22.60 & 24.21 & 0.275& 0.434& 17
18 0.000& 0.000& 0.000& 0.000& 0.013& 13.23 & 45.36 " 60.80 " 17.07 & 13.83 & 0.249& 0.276& 18
19 0.000& 0.000& 0.000& 0.000& 0.152& 11.73 & 41.10 " 37.77 " 13.80 & 9.581& 0.243& 4.527& 19
20 0.000& 0.000& 0.000& 0.000& 2.546& 26.68 & 32.05 " 29.00 " 12.05 & 7.162& 0.236& 21.79 & 20
21 0.000& 0.000& 0.000& 0.000& 2.277& 12.41 & 24.66 " 22.81 & 18.72 & 5.410& 0.212& 8.957& 21
22 0.000& 0.000& 0.000& 0.000& 1.291& 10.44 & 19.75 & 18.95 & 18.44 & 4.097& 0.184& 2.909& 22
23 0.000& 0.000& 0.000& 0.000& 0.911& 45.35 " 16.44 & 16.05 & 14.28 & 3.446& 0.147& 1.408& 23
24 0.000& 0.000& 0.000& 0.000& 0.605& 18.31 & 14.25 & 27.94 & 10.13 & 2.982& 0.120& 0.831& 24
25 0.000& 0.000& 0.000& 0.000& 0.502& 14.03 & 13.07 & 41.61 " 8.116& 2.371& 0.087& 0.543& 25
26 0.000& 0.000& 0.000& 0.000& 0.800& 45.48 " 56.31 & 36.35 " 8.132& 2.026& 0.062& 0.381& 26
27 0.000& 0.000& 0.000& 0.000& 12.07 & 38.56 " 32.99 " 22.31 & 7.770& 1.839& 0.066& 0.301& 27
28 0.000& 0.000& 0.000& 0.000& 27.71 & 30.06 " 80.03 " 17.31 & 8.253& 1.596& 0.115& 0.240& 28
29 0.000& 0.000& 0.000& 10.76 & 28.25 & 72.52 " 33.68 & 7.132& 1.435& 0.065& 0.193& 29
30 0.000& 0.000& 0.000& 5.635& 17.43 & 36.51 " 21.80 & 7.634& 1.278& 0.120& 0.159& 30
31 0.000& 0.000& 3.715& 27.04 " 14.62 & 1.097& 0.123& 31
Mean 0.000& 0.000& 0.000& 0.000& 2.226& 12.60 & 36.44 & 33.07 & 20.43 & 14.02 & 1.562& 1.803&
Median 0.000& 0.000& 0.000& 0.000& 0.009& 7.581& 24.66 & 23.18 & 14.28 & 7.162& 0.281& 0.240&
Maximum 0.000& 0.000& 0.000& 0.000& 27.71 & 45.48 & 164.4 & 127.7 & 64.56 & 91.97 & 23.20 & 21.79 &
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 1.244& 8.437& 12.33 & 7.132& 1.097& 0.062& 0.069&
Total 0.000& 0.000& 0.000& 0.000& 69.01 & 378.1 &1130 &1025 & 613.0 & 434.6 & 46.85 & 55.88 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 10.28 & " ... Relative Uncertainty +/-10%
Ann. Median 0.709& & ... Relative Uncertainty +/-30%
Annual Total 3752 &
Maximum Minimum
Daily 164.4 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2000
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.098& 0.502& 0.050& 0.042& 0.064& 0.045& 5.961& 25.01 & 38.24 " 1.231& 0.060& 0.000& 1
2 0.119& 0.412& 0.018& 0.042& 0.067& 0.052& 25.34 & 40.68 & 27.37 " 1.031& 0.064& 0.000& 2
3 0.139& 0.315& 0.011& 0.040& 0.070& 0.084& 12.10 & 45.54 " 21.32 & 0.888& 0.074& 0.000& 3
4 0.129& 0.249& 0.007& 0.017& 0.071& 0.071& 57.00 & 26.16 " 14.74 & 0.795& 0.047& 0.000& 4
5 0.087& 0.181& 0.003& 0.004& 0.067& 0.064& 40.34 " 34.70 & 14.37 & 0.696& 0.023& 0.000& 5
6 0.171& 0.130& 0.000& 0.000& 0.052& 0.065& 19.28 & 65.27 " 93.25 " 0.609& 0.025& 0.000& 6
7 0.096& 0.103& 0.000& 0.000& 0.035& 0.062& 22.74 & 45.42 " 32.57 " 0.545& 0.060& 0.000& 7
8 0.115& 0.104& 0.000& 0.000& 0.096& 0.059& 17.01 & 32.13 " 19.89 & 0.479& 0.089& 0.000& 8
9 0.088& 0.244& 0.000& 0.000& 0.092& 0.052& 12.49 & 34.45 " 14.35 & 0.432& 0.053& 0.000& 9
10 0.081& 0.146& 0.231& 0.000& 0.059& 0.045& 15.49 & 28.56 " 11.19 & 0.391& 0.045& 0.000& 10
11 0.145& 0.115& 0.347& 0.000& 0.105& 0.066& 48.41 " 20.69 & 9.201& 0.364& 0.045& 0.000& 11
12 0.049& 0.130& 0.409& 0.000& 0.149& 0.079& 21.86 & 16.51 & 7.909& 0.354& 0.042& 0.000& 12
13 0.089& 0.099& 0.346& 0.000& 0.136& 0.077& 36.47 & 13.49 & 8.816& 0.322& 0.024& 0.000& 13
14 0.210& 0.085& 0.257& 0.000& 0.112& 0.417& 37.87 " 11.67 & 8.500& 0.293& 0.013& 0.000& 14
15 0.271& 0.090& 0.213& 0.000& 0.135& 5.177& 44.36 " 15.79 & 7.482& 0.273& 0.011& 0.000& 15
16 49.93 & 0.071& 0.193& 0.000& 0.179& 2.876& 31.32 " 45.00 " 7.056& 0.256& 0.002& 0.000& 16
17 49.02 & 0.087& 0.150& 0.000& 0.322& 1.446& 70.25 " 50.43 " 5.610& 0.221& 0.000& 0.000& 17
18 11.65 & 0.071& 0.099& 0.000& 0.264& 0.981& 109.4 " 25.97 & 4.576& 0.166& 0.000& 0.000& 18
19 5.353& 0.079& 0.068& 0.000& 0.207& 5.637& 52.00 " 19.20 & 4.182& 0.134& 0.000& 0.000& 19
20 3.016& 0.060& 0.046& 0.000& 0.173& 8.696& 64.38 " 25.03 & 3.867& 0.107& 0.000& 0.000& 20
21 1.947& 0.069& 0.140& 0.000& 0.139& 8.364& 41.29 " 20.47 & 3.492& 0.110& 0.000& 0.000& 21
22 4.011& 0.081& 0.334& 0.000& 0.114& 4.197& 43.83 " 13.47 & 3.064& 0.105& 0.000& 0.000& 22
23 10.00 & 0.067& 0.073& 0.000& 0.096& 2.707& 35.11 " 11.55 & 2.711& 0.083& 0.000& 0.000& 23
24 9.622& 0.061& 0.054& 0.000& 0.093& 4.323& 24.55 " 13.81 & 2.388& 0.070& 0.000& 0.000& 24
25 5.550& 0.059& 0.060& 0.000& 0.086& 9.781& 19.65 & 13.44 & 2.144& 0.069& 0.000& 0.000& 25
26 3.081& 0.065& 0.077& 0.000& 0.105& 11.59 & 15.29 & 28.38 & 1.924& 0.074& 0.000& 0.000& 26
27 1.959& 0.048& 0.103& 0.000& 0.110& 6.121& 12.80 & 19.76 & 1.967& 0.087& 0.000& 0.000& 27
28 1.303& 0.035& 0.091& 0.000& 0.076& 3.856& 16.21 & 13.98 & 2.256& 0.069& 0.000& 0.000& 28
29 0.905& 0.069& 0.057& 0.037& 0.052& 2.796& 31.50 " 18.63 & 1.973& 0.040& 0.000& 0.000& 29
30 0.716& 0.044& 0.080& 0.049& 2.256& 18.55 & 16.75 & 1.497& 0.055& 0.000& 0.000& 30
31 0.586& 0.041& 0.050& 17.66 & 58.86 " 0.068& 0.000& 31
Mean 5.179& 0.132& 0.114& 0.009& 0.110& 2.735& 32.92 & 27.44 & 12.60 & 0.336& 0.023& 0.000&
Median 0.586& 0.087& 0.068& 0.000& 0.096& 1.214& 25.34 & 25.01 & 7.269& 0.256& 0.006& 0.000&
Maximum 49.93 & 0.502& 0.409& 0.080& 0.322& 11.59 & 109.4 & 65.27 & 93.25 & 1.231& 0.089& 0.000&
Minimum 0.049& 0.035& 0.000& 0.000& 0.035& 0.045& 5.961& 11.55 & 1.497& 0.040& 0.000& 0.000&
Total 160.5 & 3.825& 3.523& 0.263& 3.425& 82.05 &1021 & 850.8 & 377.9 & 10.41 & 0.677& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 6.869& " ... Relative Uncertainty +/-10%
Ann. Median 0.111& & ... Relative Uncertainty +/-30%
Annual Total 2514 &
Maximum Minimum
Daily 109.4 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2001
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 2.907& 0.913& 2.800& 3.064& 7.617& 0.107& 56.82 & 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 1.837& 1.267& 1.986& 2.488& 4.439& 0.077& 13.13 & 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 1.286& 1.275& 1.701& 2.156& 2.892& 0.073& 6.574& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 1.060& 1.276& 2.514& 2.060& 1.991& 0.077& 22.60 & 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 1.079& 1.208& 3.194& 1.904& 1.407& 0.046& 46.11 " 5
6 0.000& 0.000& 0.000& 0.000& 0.192& 1.035& 0.998& 4.651& 2.151& 0.984& 0.040& 21.94 & 6
7 0.000& 0.000& 0.000& 0.000& 4.363& 0.923& 0.831& 9.908& 7.124& 0.739& 0.055& 11.89 & 7
8 0.000& 0.000& 0.000& 0.000& 2.163& 0.951& 1.656& 6.743& 5.805& 0.634& 0.051& 7.861& 8
9 0.000& 0.000& 0.000& 0.000& 0.798& 1.085& 9.835& 22.04 & 4.040& 0.611& 0.031& 5.211& 9
10 0.000& 0.000& 0.000& 0.000& 0.467& 1.899& 4.891& 15.24 & 4.519& 0.711& 0.018& 3.614& 10
11 0.000& 0.000& 0.000& 0.000& 0.278& 3.281& 2.682& 8.077& 3.637& 0.812& 0.005& 2.556& 11
12 0.000& 0.000& 0.000& 0.000& 0.225& 2.561& 2.764& 6.072& 2.521& 0.695& 0.000& 1.967& 12
13 0.000& 0.000& 0.000& 0.000& 0.400& 1.899& 4.351& 4.594& 2.250& 0.546& 0.000& 1.507& 13
14 0.000& 0.000& 0.000& 0.000& 3.927& 1.486& 2.874& 7.050& 2.111& 0.457& 0.000& 1.058& 14
15 0.000& 0.000& 0.000& 0.000& 2.573& 1.220& 2.071& 20.17 & 1.781& 0.385& 0.890& 0.754& 15
16 0.000& 0.000& 0.000& 0.000& 1.272& 0.984& 1.695& 15.99 & 1.538& 0.334& 5.092& 0.577& 16
17 0.000& 0.000& 0.000& 0.000& 0.680& 0.825& 1.398& 8.779& 1.562& 0.270& 1.972& 0.447& 17
18 0.000& 0.000& 0.000& 0.000& 0.438& 0.725& 1.187& 5.817& 1.371& 0.237& 0.876& 0.376& 18
19 0.000& 0.000& 0.000& 0.000& 0.305& 0.665& 1.077& 4.668& 1.117& 0.192& 2.463& 0.409& 19
20 0.000& 0.000& 0.000& 0.000& 0.300& 0.582& 1.016& 4.705& 1.030& 0.169& 9.723& 0.339& 20
21 0.000& 0.000& 0.000& 0.000& 0.268& 0.520& 1.825& 4.026& 1.016& 0.240& 4.573& 0.396& 21
22 0.000& 0.000& 0.000& 0.000& 0.403& 0.461& 3.237& 3.304& 3.354& 0.228& 2.090& 0.488& 22
23 0.000& 0.000& 0.000& 0.000& 0.416& 0.450& 2.298& 2.920& 10.02 & 0.753& 1.118& 0.340& 23
24 0.000& 0.000& 0.000& 0.000& 0.464& 0.455& 1.692& 4.747& 4.869& 0.983& 0.688& 0.251& 24
25 0.000& 0.000& 0.000& 0.000& 0.600& 0.423& 1.311& 5.751& 2.651& 0.616& 0.454& 0.188& 25
26 0.000& 0.000& 0.000& 0.000& 1.232& 0.416& 1.118& 3.935& 1.818& 0.392& 0.299& 0.148& 26
27 0.000& 0.000& 0.000& 0.000& 1.182& 0.436& 1.015& 2.819& 1.394& 0.262& 0.224& 0.111& 27
28 0.000& 0.000& 0.000& 0.000& 0.841& 0.443& 1.020& 2.237& 1.280& 0.176& 0.179& 0.106& 28
29 0.000& 0.000& 0.000& 0.606& 0.430& 1.432& 1.979& 3.544& 0.136& 0.156& 0.098& 29
30 0.000& 0.000& 0.000& 0.571& 0.476& 1.952& 2.879& 11.77 & 0.113& 14.59 & 0.054& 30
31 0.000& 0.000& 1.812& 3.338& 4.339& 0.078& 0.048& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.864& 1.093& 2.113& 6.311& 3.198& 0.971& 1.532& 6.709&
Median 0.000& 0.000& 0.000& 0.000& 0.464& 0.937& 1.432& 4.651& 2.203& 0.546& 0.167& 0.577&
Maximum 0.000& 0.000& 0.000& 0.000& 4.363& 3.281& 9.835& 22.04 & 11.77 & 7.617& 14.59 & 56.82 &
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.416& 0.831& 1.701& 1.016& 0.078& 0.000& 0.048&
Total 0.000& 0.000& 0.000& 0.000& 26.78 & 32.80 & 65.50 & 195.6 & 95.94 & 30.10 & 45.96 & 208.0 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1.920& " ... Relative Uncertainty +/-10%
Ann. Median 0.436& & ... Relative Uncertainty +/-30%
Annual Total 700.7 &
Maximum Minimum
Daily 56.82 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2002
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.050& 0.000& 0.000& 0.000& 2.754& 1.369& 13.08 & 8.394& 57.13 & 1.242& 2.382& 0.004& 1
2 0.045& 0.000& 0.000& 0.000& 4.106& 1.638& 13.56 & 12.47 & 34.56 " 1.181& 3.917& 0.002& 2
3 0.041& 0.000& 0.000& 0.000& 2.544& 5.113& 7.249& 8.833& 18.59 & 1.161& 1.562& 0.001& 3
4 0.042& 0.000& 0.000& 0.000& 1.882& 20.89 & 6.911& 12.56 & 13.01 & 1.084& 0.803& 0.001& 4
5 0.027& 0.000& 0.000& 0.000& 1.481& 9.231& 14.38 & 26.95 & 11.40 & 1.222& 0.465& 0.001& 5
6 0.017& 0.000& 0.000& 0.000& 4.222& 10.80 & 8.397& 14.85 & 10.20 & 3.362& 0.293& 0.003& 6
7 0.009& 0.000& 0.000& 0.000& 13.81 & 10.60 & 7.989& 10.65 & 7.776& 4.051& 0.162& 0.005& 7
8 0.004& 0.000& 0.000& 0.000& 6.161& 10.43 & 9.932& 8.692& 6.471& 2.688& 0.099& 0.002& 8
9 0.001& 0.000& 0.000& 0.000& 4.308& 9.619& 7.361& 60.60 & 6.879& 1.733& 0.060& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 3.199& 8.847& 22.40 & 57.23 " 10.32 & 1.214& 0.037& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 11.31 & 8.214& 44.35 " 28.99 " 7.242& 0.906& 0.028& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 13.20 & 7.980& 88.80 " 19.48 & 5.352& 0.762& 0.035& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 6.417& 18.27 & 57.18 " 14.90 & 4.300& 0.661& 0.031& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 7.190& 13.02 & 35.44 " 11.77 & 5.568& 0.539& 0.024& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 8.857& 13.05 & 34.75 " 10.54 & 42.89 & 0.446& 0.011& 0.000& 15
16 0.000& 0.000& 0.000& 56.82 & 5.383& 6.922& 21.82 & 19.47 & 21.60 & 0.414& 0.003& 0.000& 16
17 0.000& 0.000& 0.000& 50.23 & 3.796& 5.994& 17.47 & 13.67 & 12.02 & 5.956& 0.002& 0.000& 17
18 0.000& 0.000& 0.000& 6.942& 3.005& 10.12 & 17.63 & 10.73 & 8.738& 23.95 & 0.003& 0.000& 18
19 0.000& 0.000& 0.000& 3.475& 2.497& 16.81 & 30.95 & 8.774& 6.840& 6.468& 0.003& 0.000& 19
20 0.000& 0.000& 0.000& 1.931& 2.152& 8.278& 17.59 & 7.289& 5.517& 3.318& 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 1.131& 1.979& 6.877& 14.55 & 6.596& 4.561& 2.069& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 17.50 & 2.053& 6.433& 12.22 & 6.652& 3.896& 1.372& 0.003& 0.000& 22
23 0.000& 0.000& 0.000& 72.56 & 2.304& 6.114& 9.894& 6.155& 5.033& 0.925& 0.063& 0.000& 23
24 0.000& 0.000& 0.000& 12.12 & 2.225& 5.924& 13.65 & 5.322& 5.334& 0.661& 0.031& 0.000& 24
25 0.000& 0.000& 0.000& 6.150& 2.211& 5.273& 26.65 & 5.360& 3.830& 0.522& 0.024& 0.000& 25
26 0.000& 0.000& 0.000& 6.061& 2.208& 4.574& 13.61 & 5.890& 2.859& 0.442& 0.020& 0.000& 26
27 0.000& 0.000& 0.000& 6.057& 1.812& 4.948& 11.50 & 10.85 & 2.399& 0.357& 0.019& 0.000& 27
28 0.000& 0.000& 0.000& 3.858& 1.295& 4.121& 9.010& 7.252& 2.118& 0.447& 0.019& 0.000& 28
29 0.000& 0.000& 2.937& 1.181& 8.922& 7.257& 6.166& 1.813& 1.203& 0.008& 0.000& 29
30 0.000& 0.000& 2.382& 1.232& 11.03 & 6.902& 16.13 & 1.485& 1.037& 0.005& 0.000& 30
31 0.000& 0.000& 1.389& 7.107& 20.48 & 0.648& 0.000& 31
Mean 0.008& 0.000& 0.000& 8.338& 4.134& 8.713& 19.66 & 14.96 & 10.99 & 2.324& 0.337& 0.001&
Median 0.000& 0.000& 0.000& 0.566& 2.544& 8.246& 13.61 & 10.73 & 6.656& 1.161& 0.026& 0.000&
Maximum 0.050& 0.000& 0.000& 72.56 & 13.81 & 20.89 & 88.80 & 60.60 & 57.13 & 23.95 & 3.917& 0.005&
Minimum 0.000& 0.000& 0.000& 0.000& 1.181& 1.369& 6.902& 5.322& 1.485& 0.357& 0.000& 0.000&
Total 0.235& 0.000& 0.000& 250.2 & 128.2 & 261.4 & 609.6 & 463.7 & 329.7 & 72.05 & 10.12 & 0.020&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.822& " ... Relative Uncertainty +/-10%
Ann. Median 1.203& & ... Relative Uncertainty +/-30%
Annual Total 2125 &
Maximum Minimum
Daily 88.80 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2003
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 1.252& 0.071& 2.056& 7.205& 18.67 & 16.99 & 57.61 " 3.235& 0.711& 1
2 0.000& 0.000& 0.000& 1.515& 0.048& 1.757& 5.778& 22.39 & 14.40 & 33.04 " 2.482& 0.705& 2
3 0.000& 0.000& 0.000& 1.414& 0.048& 1.878& 10.69 & 319.2 " 11.92 & 22.97 & 1.871& 0.595& 3
4 0.000& 0.000& 0.000& 0.897& 0.050& 1.846& 30.13 & 78.24 " 12.87 & 27.60 & 1.381& 0.570& 4
5 0.000& 0.000& 0.000& 0.643& 0.052& 1.669& 37.27 & 52.84 " 11.73 & 18.44 & 1.016& 0.471& 5
6 0.000& 0.000& 0.000& 0.803& 0.049& 1.541& 45.98 " 40.50 " 9.703& 12.22 & 0.764& 0.214& 6
7 0.000& 0.000& 0.000& 0.455& 0.040& 1.718& 25.55 & 30.21 " 8.895& 9.326& 0.562& 0.256& 7
8 0.000& 0.000& 0.000& 0.247& 0.077& 1.629& 17.02 & 23.93 & 7.887& 8.000& 0.443& 0.140& 8
9 0.000& 0.000& 0.000& 0.223& 0.322& 1.252& 16.98 & 20.15 & 9.044& 8.764& 0.342& 0.081& 9
10 0.000& 0.000& 0.000& 0.281& 0.111& 1.015& 67.40 & 24.19 & 21.14 & 6.612& 0.280& 0.089& 10
11 0.000& 0.000& 0.000& 0.471& 0.082& 0.901& 72.97 " 87.58 " 31.18 & 4.746& 0.201& 0.072& 11
12 0.000& 0.000& 0.000& 0.575& 0.239& 0.953& 33.18 " 34.22 " 18.06 & 3.810& 0.136& 0.043& 12
13 0.000& 0.000& 0.000& 0.492& 0.828& 0.920& 25.48 " 22.58 & 16.77 & 5.642& 0.121& 0.039& 13
14 0.000& 0.000& 0.000& 0.387& 1.340& 0.786& 30.04 " 21.30 & 12.41 & 7.166& 0.130& 0.039& 14
15 0.000& 0.000& 0.000& 0.408& 1.118& 0.682& 25.19 & 18.36 & 9.390& 5.273& 0.174& 0.043& 15
16 0.000& 0.000& 0.000& 0.491& 16.47 & 0.617& 17.81 & 23.29 & 7.519& 4.010& 0.178& 0.040& 16
17 0.000& 0.000& 0.000& 0.369& 18.72 & 0.542& 14.12 & 28.05 " 6.417& 3.117& 0.070& 0.038& 17
18 0.000& 0.000& 0.000& 0.300& 5.850& 0.485& 12.37 & 27.44 " 5.480& 2.942& 0.080& 0.046& 18
19 0.000& 0.000& 0.000& 0.264& 3.064& 0.435& 11.17 & 19.55 & 6.003& 2.939& 0.094& 0.077& 19
20 0.000& 0.000& 0.000& 0.287& 1.990& 0.390& 11.49 & 25.12 & 14.61 & 2.388& 0.103& 0.066& 20
21 0.000& 0.000& 0.000& 0.359& 7.224& 0.357& 14.21 & 22.50 & 49.02 & 1.950& 0.093& 0.053& 21
22 0.000& 0.000& 0.000& 0.382& 7.758& 0.359& 20.00 & 684.1 $ 97.54 " 1.588& 0.070& 0.045& 22
23 0.000& 0.000& 0.000& 0.236& 3.627& 0.409& 15.38 & 436.7 " 85.36 " 1.308& 0.042& 0.030& 23
24 0.000& 0.000& 0.000& 0.647& 2.156& 0.698& 11.42 & 128.5 " 37.72 " 1.089& 0.024& 0.013& 24
25 0.000& 0.000& 0.000& 2.574& 1.543& 14.34 & 10.20 & 81.77 " 26.71 " 0.941& 66.08 & 0.007& 25
26 0.000& 0.000& 0.000& 2.365& 1.159& 20.29 & 9.061& 55.64 " 18.80 & 0.819& 9.736& 0.002& 26
27 0.000& 0.000& 0.000& 0.804& 0.955& 24.27 & 8.207& 41.58 " 14.61 & 28.12 & 4.306& 0.000& 27
28 0.000& 0.000& 0.062& 0.362& 0.810& 37.76 & 7.491& 34.46 " 11.25 & 27.55 & 2.554& 0.000& 28
29 0.000& 0.586& 0.197& 0.655& 16.04 & 6.745& 35.10 " 56.50 & 9.538& 1.643& 0.000& 29
30 0.000& 0.108& 0.123& 0.679& 9.652& 22.96 & 23.45 & 146.5 " 6.180& 1.014& 0.000& 30
31 0.000& 0.702& 1.335& 21.40 & 19.25 & 4.359& 0.000& 31
Mean 0.000& 0.000& 0.047& 0.661& 2.531& 4.908& 21.45 & 80.67 & 26.55 & 10.65 & 3.307& 0.145&
Median 0.000& 0.000& 0.000& 0.431& 0.828& 1.134& 16.98 & 28.05 & 14.50 & 5.642& 0.311& 0.045&
Maximum 0.000& 0.000& 0.702& 2.574& 18.72 & 37.76 & 72.97 & 684.1 & 146.5 & 57.61 & 66.08 & 0.711&
Minimum 0.000& 0.000& 0.000& 0.123& 0.040& 0.357& 5.778& 18.36 & 5.480& 0.819& 0.024& 0.000&
Total 0.000& 0.000& 1.457& 19.82 & 78.46 & 147.2 & 664.9 &2501 & 796.5 & 330.1 & 99.22 & 4.486&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 12.72 & " ... Relative Uncertainty +/-10%
Ann. Median 0.702& $ ... Relative Uncertainty +/-20%
Annual Total 4643 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 684.1 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2004
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 2.957& 12.69 & 12.27 & 17.98 & 1.259& 0.047& 0.010& 1
2 0.000& 0.175& 0.000& 0.000& 0.000& 1.488& 21.88 & 14.02 & 14.16 & 1.246& 0.051& 0.007& 2
3 0.000& 0.374& 0.000& 0.000& 0.000& 0.800& 32.32 & 14.56 & 11.07 & 1.028& 0.051& 0.001& 3
4 0.000& 0.282& 0.000& 0.000& 0.000& 0.537& 17.64 & 15.13 & 9.521& 0.839& 0.042& 0.000& 4
5 8.111& 0.299& 0.000& 0.000& 0.000& 0.497& 13.73 & 19.60 & 23.01 & 0.769& 0.035& 0.000& 5
6 19.08 & 0.245& 0.000& 0.000& 0.000& 1.034& 10.83 & 28.89 & 24.67 " 1.240& 0.056& 0.000& 6
7 3.687& 0.141& 0.000& 0.000& 0.000& 4.877& 67.71 & 16.92 & 21.01 & 3.354& 0.046& 0.000& 7
8 1.423& 0.059& 0.000& 0.000& 0.000& 12.61 & 98.45 " 12.79 & 16.00 & 2.388& 0.031& 0.000& 8
9 0.608& 0.015& 0.000& 0.000& 0.000& 8.261& 43.74 " 10.28 & 12.47 & 1.462& 0.058& 0.000& 9
10 0.306& 0.001& 0.000& 0.000& 0.000& 4.202& 29.16 " 8.586& 11.15 & 1.033& 0.045& 0.000& 10
11 0.197& 0.000& 0.000& 0.000& 0.000& 28.46 & 22.33 & 10.64 & 8.520& 0.806& 0.047& 0.000& 11
12 0.126& 0.000& 0.000& 0.000& 0.000& 49.95 & 18.28 & 41.70 " 6.978& 0.713& 0.049& 0.000& 12
13 0.130& 0.000& 0.000& 0.000& 0.000& 30.09 & 16.21 & 20.91 & 5.784& 0.708& 0.032& 0.000& 13
14 0.079& 0.000& 0.000& 0.000& 0.000& 15.50 & 13.71 & 18.48 & 4.990& 0.646& 0.032& 0.000& 14
15 0.138& 0.000& 0.000& 0.000& 0.000& 11.73 & 12.27 & 18.95 & 4.571& 0.499& 0.024& 0.000& 15
16 0.232& 0.000& 0.000& 0.000& 0.000& 11.06 & 11.22 & 13.90 & 4.390& 0.434& 0.018& 0.000& 16
17 0.244& 0.000& 0.000& 0.000& 0.000& 41.70 " 10.47 & 11.61 & 4.231& 0.360& 0.017& 0.000& 17
18 0.196& 0.000& 0.000& 0.000& 0.000& 18.24 & 8.814& 10.81 & 4.044& 0.352& 0.023& 0.000& 18
19 0.124& 0.000& 0.000& 0.000& 0.000& 13.41 & 7.660& 9.815& 3.749& 0.312& 0.025& 0.000& 19
20 0.073& 0.000& 0.000& 0.000& 0.000& 11.07 & 6.979& 10.41 & 3.321& 0.248& 0.018& 0.000& 20
21 0.036& 0.000& 0.000& 0.000& 0.086& 8.951& 17.10 & 17.99 & 2.710& 0.393& 0.011& 0.000& 21
22 0.015& 0.000& 0.000& 0.000& 0.122& 11.29 & 41.63 " 13.68 & 2.290& 0.950& 0.004& 0.000& 22
23 0.002& 0.000& 0.000& 0.000& 0.347& 15.08 & 20.85 & 15.35 & 2.035& 0.671& 0.002& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.386& 9.768& 16.08 & 44.38 " 1.822& 0.573& 0.010& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.430& 8.609& 23.97 & 77.83 " 1.704& 0.399& 0.015& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.303& 7.240& 17.02 & 57.21 " 1.983& 0.237& 0.026& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.205& 31.38 & 12.39 & 47.00 " 2.545& 0.142& 0.026& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.142& 44.03 " 10.59 & 51.69 " 1.947& 0.098& 0.017& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.125& 20.58 & 9.128& 32.30 " 1.559& 0.071& 0.016& 0.000& 29
30 0.000& 0.000& 0.000& 0.157& 15.56 & 13.82 & 23.77 & 1.301& 0.054& 0.014& 0.000& 30
31 0.000& 0.000& 1.160& 16.91 & 21.52 & 0.048& 0.000& 31
Mean 1.123& 0.055& 0.000& 0.000& 0.112& 14.70 & 21.79 & 23.32 & 7.717& 0.753& 0.030& 0.001&
Median 0.073& 0.000& 0.000& 0.000& 0.000& 11.18 & 16.21 & 16.92 & 4.480& 0.646& 0.026& 0.000&
Maximum 19.08 & 0.374& 0.000& 0.000& 1.160& 49.95 & 98.45 & 77.83 & 24.67 & 3.354& 0.058& 0.010&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.497& 6.979& 8.586& 1.301& 0.048& 0.002& 0.000&
Total 34.81 & 1.593& 0.000& 0.000& 3.463& 440.9 & 675.6 & 723.0 & 231.5 & 23.33 & 0.888& 0.019&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.834& " ... Relative Uncertainty +/-10%
Ann. Median 0.072& & ... Relative Uncertainty +/-30%
Annual Total 2135 &
Maximum Minimum
Daily 98.45 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2005
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000&2647 & 53.63 & 13.57 " 23.57 " 8.616" 21.44 " 41.27 " 3.250" 0.122& 1
2 0.000& 0.000& 0.000& 501.9 & 199.8 & 11.09 " 20.52 " 19.33 " 18.21 " 24.50 " 5.143" 0.106& 2
3 0.000& 0.000& 0.000& 148.3 & 168.3 & 12.91 " 34.12 & 19.04 " 16.42 " 15.80 " 3.385" 0.064& 3
4 0.000& 0.000& 0.000& 46.63 & 120.6 & 36.39 " 109.6 & 13.48 " 17.12 " 13.85 " 2.526& 0.058& 4
5 0.000& 0.000& 0.000& 7.536$ 98.64 & 26.76 " 40.47 " 11.31 " 23.72 & 12.17 " 2.924& 0.056& 5
6 0.000& 0.000& 0.000& 2.561& 85.67 & 24.56 " 28.64 " 10.29 " 219.3 & 16.88 " 5.000" 0.052& 6
7 0.000& 0.000& 0.000& 1.105& 73.81 & 31.21 " 25.29 " 10.98 " 74.34 & 12.06 " 3.598" 0.063& 7
8 0.000& 0.000& 0.000& 0.421& 64.26 & 23.35 " 22.32 " 11.54 " 49.41 & 9.462" 2.509& 0.053& 8
9 0.000& 0.000& 0.000& 0.148& 57.26 & 37.20 & 20.19 " 9.284" 97.22 & 8.656" 2.371& 0.049& 9
10 0.000& 0.000& 0.000& 0.040& 50.73 & 68.72 & 17.04 " 8.306" 37.49 " 8.132" 1.971& 0.037& 10
11 0.000& 0.000& 0.000& 0.007& 45.89 $ 49.41 & 15.46 " 7.731" 27.92 " 6.911" 1.405& 0.101& 11
12 0.000& 0.000& 0.000& 0.000& 46.96 $ 170.9 & 14.50 " 9.617" 24.73 " 6.367" 1.110& 0.100& 12
13 0.000& 0.000& 0.000& 0.000& 37.46 $ 95.32 & 20.43 " 33.52 " 27.71 " 5.831" 0.899& 0.072& 13
14 0.000& 0.000& 0.000& 0.000& 32.07 $ 57.41 & 23.96 " 41.39 " 33.65 " 5.191" 0.722& 0.057& 14
15 0.000& 0.000& 0.000& 0.000& 49.44 & 54.13 & 20.01 " 23.41 " 22.45 " 4.710" 0.638& 0.050& 15
16 0.000& 0.000& 0.000& 0.000& 75.44 & 40.82 " 17.67 " 52.57 & 17.19 " 4.275" 0.486& 0.044& 16
17 0.000& 0.000& 0.000& 0.000& 30.19 $ 88.61 & 15.27 " 122.9 & 24.60 " 6.977" 0.332& 0.049& 17
18 0.000& 0.000& 0.000& 0.000& 59.60 & 160.9 & 13.45 " 485.9 & 36.59 " 12.04 " 0.238& 0.045& 18
19 0.000& 0.000& 0.000& 0.000& 65.37 & 131.5 & 11.92 " 126.4 & 21.08 " 7.751" 0.189& 0.033& 19
20 0.000& 0.000& 0.000& 0.000& 53.77 & 82.78 & 11.16 " 66.10 & 17.12 " 5.355" 0.224& 0.008& 20
21 0.000& 0.000& 0.000& 13.68 & 49.62 $ 49.64 & 39.09 " 48.37 & 38.84 & 5.915" 0.388& 0.001& 21
22 0.000& 0.000& 0.000& 161.7 & 45.59 $ 37.84 " 23.24 " 36.63 " 25.72 " 14.61 " 0.133& 0.000& 22
23 0.000& 0.000& 0.000& 138.2 & 41.76 $ 132.4 & 17.38 " 30.06 " 80.98 & 8.575" 0.159& 0.000& 23
24 0.000& 0.000& 0.000& 123.3 & 38.62 $ 128.8 & 14.60 " 85.23 & 55.24 & 5.600" 0.150& 0.000& 24
25 0.000& 0.000& 0.000& 97.06 & 35.83 $ 54.84 & 13.68 " 173.3 & 23.68 " 4.416" 0.230& 0.000& 25
26 0.000& 0.000& 0.000& 82.98 & 34.23 $ 42.58 " 12.98 " 129.5 & 17.33 " 3.976" 0.358& 0.000& 26
27 0.000& 0.000& 0.000& 72.53 & 78.99 & 34.32 " 11.72 " 57.84 & 15.38 " 3.679" 0.407& 0.000& 27
28 0.000& 0.000& 0.000& 65.33 & 45.99 & 28.21 " 11.59 " 67.22 & 22.24 " 3.781" 0.194& 0.000& 28
29 0.000& 0.000& 59.51 & 31.03 " 24.87 " 11.43 " 43.32 & 17.30 " 3.153" 0.278& 0.000& 29
30 0.000& 0.000& 56.83 & 28.89 " 28.77 " 10.64 " 31.57 " 17.66 " 2.633" 0.201& 0.000& 30
31 0.000& 0.000& 25.75 " 9.457" 25.14 " 2.654" 0.000& 31
Mean 0.000& 0.000& 0.000& 140.9 & 62.10 & 59.32 & 21.98 & 58.70 & 38.07 & 9.264" 1.381& 0.039&
Median 0.000& 0.000& 0.000& 5.049& 49.62 & 41.70 & 17.38 & 31.57 & 24.16 & 6.911" 0.562& 0.045&
Maximum 0.000& 0.000& 0.000&2647 & 199.8 & 170.9 & 109.6 & 485.9 & 219.3 & 41.27 " 5.143& 0.122&
Minimum 0.000& 0.000& 0.000& 0.000& 25.75 & 11.09 & 9.457& 7.731& 15.38 & 2.633" 0.133& 0.000&
Total 0.000& 0.000& 0.000&4227 &1925 &1780 & 681.4 &1820 &1142 & 287.2 " 41.42 & 1.220&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 32.62 & " ... Relative Uncertainty +/-10%
Ann. Median 6.977& $ ... Relative Uncertainty +/-20%
Annual Total 11905 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 2647 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2006
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.191& 0.000& 0.000& 0.084& 0.579& 2.644& 9.534" 31.04 & 1.296& 0.074& 0.000& 1
2 0.000& 0.186& 0.000& 0.000& 0.114& 0.513& 3.298" 9.991" 21.22 " 1.032& 0.029& 0.000& 2
3 0.000& 0.070& 0.000& 0.000& 0.108& 0.413& 2.715" 8.476" 15.44 " 1.162& 0.015& 0.000& 3
4 0.000& 0.081& 0.000& 0.000& 0.074& 0.358& 2.452& 6.637" 13.14 " 4.184& 0.009& 0.000& 4
5 0.000& 0.065& 0.000& 0.000& 0.071& 0.310& 2.433& 5.435" 11.58 " 4.226" 0.022& 0.000& 5
6 0.000& 0.023& 0.000& 0.000& 0.097& 0.279& 1.859& 4.762" 9.753" 2.378& 0.035& 0.000& 6
7 0.000& 0.011& 0.000& 0.000& 0.114& 0.245& 1.458& 15.03 " 8.584" 1.493& 0.042& 0.000& 7
8 0.017& 0.001& 0.000& 0.000& 0.058& 0.214& 1.153& 23.19 " 7.697" 0.936& 0.011& 0.000& 8
9 0.062& 0.000& 0.000& 0.000& 0.063& 0.185& 1.021& 10.77 " 7.735" 0.697& 0.003& 0.000& 9
10 0.042& 0.000& 0.000& 0.000& 0.082& 0.142& 1.063& 7.612" 8.810" 0.536& 0.001& 0.000& 10
11 0.016& 0.000& 0.000& 0.000& 0.154& 0.136& 1.180& 6.256" 11.74 " 0.529& 0.001& 0.000& 11
12 0.018& 0.000& 0.000& 0.000& 0.129& 0.138& 1.205& 5.666" 15.08 " 0.612& 0.001& 0.000& 12
13 0.296& 0.000& 0.000& 0.000& 0.117& 0.166& 1.126& 6.319" 13.82 " 0.916& 0.002& 0.000& 13
14 0.317& 0.000& 0.000& 0.000& 0.113& 0.152& 1.073& 5.488" 8.308" 0.913& 0.001& 0.000& 14
15 0.138& 0.000& 0.000& 0.000& 0.137& 0.162& 1.141& 20.94 " 6.695" 0.828& 0.000& 0.000& 15
16 0.276& 0.000& 0.000& 0.000& 0.175& 0.156& 1.196& 24.20 " 5.490" 0.704& 0.000& 0.000& 16
17 0.500& 0.000& 0.000& 0.000& 0.148& 0.141& 1.066& 11.33 " 4.616" 0.570& 0.000& 0.000& 17
18 0.494& 0.000& 0.000& 0.000& 0.133& 0.116& 0.930& 10.24 " 4.164" 0.461& 0.000& 0.000& 18
19 0.393& 0.000& 0.000& 0.000& 0.109& 0.164& 0.826& 121.6 & 6.007" 0.393& 0.000& 0.000& 19
20 0.234& 0.000& 0.000& 0.000& 0.084& 0.659& 1.256& 91.56 & 5.802" 0.295& 0.000& 7.288& 20
21 0.168& 0.000& 0.000& 0.000& 0.060& 2.159& 19.95 " 29.63 " 4.592" 0.195& 0.000& 3.766& 21
22 0.126& 0.000& 0.000& 0.182& 0.053& 1.140& 10.36 " 225.5 & 4.589" 0.186& 0.000& 0.941& 22
23 0.079& 0.000& 0.000& 0.105& 0.067& 0.707& 4.981" 180.3 & 3.683" 0.147& 0.000& 0.279& 23
24 0.116& 0.000& 0.000& 0.121& 0.172& 0.508& 6.067" 83.63 & 2.873" 0.107& 0.000& 0.051& 24
25 0.167& 0.000& 0.000& 0.120& 0.172& 0.430& 18.06 " 73.43 & 2.419& 0.075& 0.000& 0.021& 25
26 0.234& 0.000& 0.000& 0.222& 0.114& 0.400& 7.998" 111.9 & 2.326& 0.071& 0.000& 0.013& 26
27 0.170& 0.000& 0.000& 0.163& 0.305& 6.089& 25.57 & 40.84 & 2.333& 0.059& 0.000& 0.003& 27
28 0.153& 0.000& 0.000& 0.185& 0.233& 11.65 " 36.08 & 26.99 " 2.054& 0.049& 0.000& 0.000& 28
29 0.082& 0.000& 0.202& 0.249& 4.923" 13.64 " 20.41 " 1.805& 0.054& 0.000& 0.000& 29
30 0.144& 0.000& 0.126& 0.243& 2.733& 12.91 " 15.52 " 1.611& 0.091& 0.000& 0.000& 30
31 0.240& 0.000& 0.439& 9.881" 66.23 & 0.121& 0.000& 31
Mean 0.145& 0.022& 0.000& 0.048& 0.138& 1.199& 6.341& 41.27 & 8.167& 0.817& 0.008& 0.399&
Median 0.126& 0.000& 0.000& 0.000& 0.114& 0.334& 2.433& 15.52 & 6.351& 0.536& 0.000& 0.000&
Maximum 0.500& 0.191& 0.000& 0.222& 0.439& 11.65 & 36.08 & 225.5 & 31.04 & 4.226& 0.074& 7.288&
Minimum 0.000& 0.000& 0.000& 0.000& 0.053& 0.116& 0.826& 4.762& 1.611& 0.049& 0.000& 0.000&
Total 4.482& 0.629& 0.000& 1.425& 4.269& 35.96 & 196.6 &1279 & 245.0 & 25.32 & 0.246& 12.36 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4.947& " ... Relative Uncertainty +/-10%
Ann. Median 0.129& & ... Relative Uncertainty +/-30%
Annual Total 1806 &
Maximum Minimum
Daily 225.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2007
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 4.486& 0.756& 12.37 " 35.68 " 16.04 " 5.740" 4.817" 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 4.171" 0.581& 20.83 " 44.70 & 13.09 " 4.513" 2.494& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 2.230& 0.461& 20.88 " 20.85 " 10.55 " 3.768" 1.478& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 1.110& 0.409& 11.34 " 16.25 " 9.114" 3.261" 0.899& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.668& 0.332& 6.661" 13.21 " 12.26 " 2.811" 0.591& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.523& 0.280& 6.449" 43.59 & 9.541" 2.350& 0.419& 0.001& 6
7 0.000& 0.000& 0.000& 0.000& 0.397& 0.287& 5.806" 87.01 & 8.244" 2.001& 0.287& 0.009& 7
8 0.000& 0.000& 0.000& 0.000& 0.289& 0.310& 5.195" 26.01 " 18.51 " 8.640& 0.194& 0.011& 8
9 0.000& 0.000& 0.000& 0.000& 0.197& 0.760& 6.663" 17.76 " 12.76 " 40.64 & 0.127& 0.002& 9
10 0.000& 0.000& 0.000& 0.000& 0.134& 1.020& 5.348" 44.38 & 8.617" 14.50 " 0.084& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.118& 0.844& 3.766" 45.15 & 6.881" 8.897" 0.046& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.119& 0.632& 3.202" 20.11 " 63.56 & 6.370" 0.026& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.091& 0.509& 3.268" 15.32 " 112.2 & 4.571" 0.027& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.108& 0.537& 3.068" 13.06 " 50.88 & 3.554" 0.029& 0.000& 14
15 0.000& 0.000& 0.000& 0.001& 0.109& 0.905& 2.722" 12.85 " 90.05 & 2.746& 0.012& 0.000& 15
16 0.000& 0.000& 0.000& 10.84 & 0.114& 0.844& 2.351& 11.98 " 32.66 " 1.987& 0.021& 0.010& 16
17 0.000& 0.000& 0.000& 4.542" 0.120& 0.803& 2.279& 10.25 " 21.76 " 1.636& 0.011& 0.249& 17
18 0.000& 0.000& 0.000& 1.531& 0.139& 0.674& 2.373& 8.612" 17.84 " 1.722& 0.001& 0.132& 18
19 0.000& 0.000& 0.000& 0.604& 0.121& 0.594& 2.193& 7.337" 14.74 " 1.878& 0.000& 0.177& 19
20 0.000& 0.000& 0.000& 0.271& 0.182& 0.516& 5.139" 7.352" 11.35 " 1.639& 0.000& 0.314& 20
21 0.000& 0.000& 0.000& 0.118& 0.193& 0.452& 7.470" 7.370" 9.935" 1.467& 0.000& 0.233& 21
22 0.000& 0.000& 0.000& 0.058& 0.204& 0.418& 25.83 " 6.960" 10.38 " 1.294& 0.001& 0.199& 22
23 0.000& 0.000& 0.000& 0.057& 0.173& 0.556& 20.31 " 13.13 " 10.16 " 0.954& 0.000& 0.063& 23
24 0.000& 0.000& 0.000& 0.083& 0.131& 2.703& 87.84 & 10.03 " 11.93 " 0.713& 0.000& 0.119& 24
25 0.000& 0.000& 0.000& 0.059& 0.144& 3.298" 22.91 " 7.168" 26.46 " 0.552& 0.000& 0.027& 25
26 0.000& 0.000& 0.000& 0.076& 0.256& 2.308& 15.66 " 13.22 " 13.99 " 0.589& 0.000& 0.003& 26
27 0.000& 0.000& 0.000& 0.078& 0.498& 1.960& 16.59 & 17.31 " 10.68 " 1.955& 0.000& 0.001& 27
28 0.000& 0.000& 0.000& 0.070& 1.418& 24.50 " 126.3 & 9.678" 9.862" 3.799" 0.000& 0.000& 28
29 0.000& 0.000& 0.123& 2.856& 12.10 " 30.28 " 33.59 & 9.479" 2.673& 0.000& 0.000& 29
30 0.000& 0.000& 0.478& 2.035& 9.888" 42.77 & 92.49 & 6.929" 5.359" 0.000& 0.000& 30
31 0.000& 0.000& 1.127& 82.75 & 23.58 " 9.095" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.633& 0.789& 2.341& 19.70 & 23.74 & 22.02 & 4.893& 0.385& 0.050&
Median 0.000& 0.000& 0.000& 0.029& 0.197& 0.653& 6.663& 15.32 & 12.09 & 2.746& 0.016& 0.001&
Maximum 0.000& 0.000& 0.000& 10.84 & 4.486& 24.50 & 126.3 & 92.49 & 112.2 & 40.64 & 4.817& 0.314&
Minimum 0.000& 0.000& 0.000& 0.000& 0.091& 0.280& 2.193& 6.960& 6.881& 0.552& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 18.99 & 24.46 & 70.24 & 610.6 & 736.0 & 660.5 & 151.7 & 11.56 & 1.551&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 6.262& " ... Relative Uncertainty +/-10%
Ann. Median 0.233& & ... Relative Uncertainty +/-30%
Annual Total 2286 &
Maximum Minimum
Daily 126.3 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2008
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 20.26 & 0.238& 66.76 & 5.682" 61.65 & 4.078" 2.386& 0.744& 1.267& 1
2 0.000& 0.000& 0.000& 9.856" 0.189& 19.00 " 4.940" 107.5 & 4.795" 2.084& 0.547& 0.769& 2
3 0.000& 0.000& 0.000& 2.387& 0.168& 11.66 " 4.285" 59.68 & 3.786" 1.799& 0.370& 0.484& 3
4 0.000& 0.000& 0.000& 0.975& 0.140& 8.576" 4.002" 38.69 " 3.070" 1.558& 0.241& 0.313& 4
5 0.000& 0.000& 0.000& 0.571& 0.112& 6.768" 3.986" 30.49 " 2.582& 2.048& 0.178& 0.211& 5
6 0.000& 0.000& 0.000& 0.371& 0.089& 5.715" 3.613" 26.82 " 2.215& 2.200& 0.142& 0.127& 6
7 0.000& 0.000& 0.000& 0.222& 0.071& 4.965" 3.055" 27.60 " 1.973& 1.840& 0.101& 0.073& 7
8 0.000& 0.000& 0.000& 0.175& 0.069& 4.339" 2.667" 24.30 " 1.824& 1.415& 0.137& 0.052& 8
9 0.000& 0.000& 0.000& 0.101& 0.060& 7.311" 3.511" 19.09 " 1.667& 1.084& 0.111& 0.029& 9
10 0.000& 0.000& 0.000& 0.079& 0.049& 18.73 " 12.38 " 16.25 " 1.488& 0.830& 0.076& 0.041& 10
11 0.000& 0.000& 0.000& 0.082& 0.041& 10.42 " 30.47 " 14.38 " 1.348& 0.704& 0.072& 0.050& 11
12 0.000& 0.000& 0.000& 0.094& 0.036& 9.079" 15.78 " 12.66 " 1.312& 0.703& 0.047& 0.052& 12
13 0.000& 0.000& 0.000& 0.090& 0.135& 10.54 " 9.677" 11.52 " 1.303& 0.896& 0.027& 0.037& 13
14 0.000& 0.000& 0.000& 0.063& 0.239& 7.974" 8.167" 10.61 " 1.634& 0.887& 0.022& 0.040& 14
15 0.000& 0.000& 0.000& 0.033& 0.608& 7.455" 24.75 & 9.538" 1.530& 0.662& 0.055& 0.019& 15
16 0.000& 0.000& 0.000& 0.031& 0.615& 17.04 " 81.34 & 8.444" 1.398& 0.505& 0.066& 0.012& 16
17 0.000& 0.000& 0.000& 0.109& 0.707& 13.15 " 32.69 " 7.411" 1.376& 0.382& 0.015& 0.004& 17
18 0.000& 0.000& 0.000& 0.059& 0.638& 9.602" 206.5 & 6.524" 2.291& 0.290& 0.037& 0.000& 18
19 0.000& 0.000& 0.000& 0.048& 0.555& 6.851" 223.7 & 6.162" 5.085" 0.211& 0.003& 0.000& 19
20 0.000& 0.000& 0.000& 0.205& 0.479& 5.358" 130.0 & 6.563" 3.986" 0.184& 1.004& 0.045& 20
21 0.000& 0.000& 0.000& 2.541& 0.400& 4.534" 72.28 & 6.045" 3.369" 0.190& 8.372& 0.066& 21
22 0.000& 0.000& 0.000& 2.639& 3.885& 4.033" 45.07 & 5.259" 5.447" 0.185& 10.69 " 0.016& 22
23 0.000& 0.000& 0.000& 1.907& 18.93 " 3.637" 109.7 & 4.787" 4.250" 0.255& 9.051" 0.004& 23
24 0.000& 0.000& 0.000& 1.798& 28.08 & 3.305" 173.1 & 4.500" 2.502& 2.076& 4.798" 0.001& 24
25 0.000& 0.000& 0.000& 1.343& 32.25 & 3.536" 74.12 & 4.425" 7.620& 7.046" 3.799" 0.000& 25
26 0.000& 0.000& 0.000& 0.818& 10.64 " 3.963" 82.90 & 4.245" 23.61 " 4.468" 4.165" 0.000& 26
27 0.000& 0.000& 0.000& 0.559& 6.373" 3.631" 78.37 & 3.814" 8.652" 2.130& 4.116" 0.000& 27
28 0.000& 0.000& 0.000& 0.409& 5.881" 10.04 " 100.1 & 3.528" 4.959" 1.102& 6.505" 0.000& 28
29 0.000& 0.000& 0.000& 0.334& 12.44 " 12.76 " 110.1 & 3.614" 3.727" 0.840& 4.676" 0.000& 29
30 0.000& 0.000& 0.289& 8.367" 7.673" 198.9 & 4.195" 2.944" 0.988& 2.367& 0.000& 30
31 0.000& 0.000& 16.47 & 114.3 & 3.985" 1.007& 0.000& 31
Mean 0.000& 0.000& 0.000& 1.615& 4.806& 10.28 & 63.56 & 17.88 & 3.861& 1.386& 2.084& 0.120&
Median 0.000& 0.000& 0.000& 0.312& 0.479& 7.564& 32.69 & 8.444& 2.763& 0.988& 0.209& 0.029&
Maximum 0.000& 0.000& 0.000& 20.26 & 32.25 & 66.76 & 223.7 & 107.5 & 23.61 & 7.046& 10.69 & 1.267&
Minimum 0.000& 0.000& 0.000& 0.031& 0.036& 3.305& 2.667& 3.528& 1.303& 0.184& 0.003& 0.000&
Total 0.000& 0.000& 0.000& 48.45 & 149.0 & 308.4 &1970 & 554.2 & 115.8 & 42.95 & 62.53 & 3.711&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 8.894& " ... Relative Uncertainty +/-10%
Ann. Median 0.589& & ... Relative Uncertainty +/-30%
Annual Total 3255 &
Maximum Minimum
Daily 223.7 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2009
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 46.59 & 20.26 " 12.58 " 9.346" 0.077& 0.000& 1
2 0.000& 0.000& 2.981& 0.000& 0.000& 0.000& 31.56 " 17.98 " 15.76 " 7.606" 0.039& 0.000& 2
3 0.000& 0.000& 0.455& 0.000& 0.000& 0.000& 24.95 " 16.79 " 13.36 " 6.344" 0.021& 0.000& 3
4 0.000& 0.000& 0.114& 0.000& 0.000& 0.000& 21.16 " 15.59 " 10.85 " 5.089" 0.015& 0.000& 4
5 0.000& 0.000& 0.025& 0.000& 0.000& 0.004& 18.56 " 15.00 " 11.89 " 4.499" 0.008& 0.000& 5
6 0.000& 0.000& 0.008& 0.000& 0.000& 0.044& 18.11 " 22.91 " 12.38 " 4.157" 0.012& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.163& 24.70 " 22.62 " 12.07 " 4.357" 0.004& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.279& 24.04 " 16.05 " 37.12 " 4.698" 0.001& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.193& 60.88 & 16.56 " 18.05 " 4.324" 0.000& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.177& 157.1 & 21.33 " 16.42 " 3.836" 0.003& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.206& 71.06 & 32.48 " 31.02 " 4.180" 0.005& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.165& 37.91 " 29.20 " 30.22 " 4.472" 0.008& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.181& 26.94 " 27.25 " 20.40 " 3.404" 0.016& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.222& 21.00 " 120.6 & 14.60 " 2.739" 0.000& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.176& 17.78 " 251.7 & 26.90 " 2.325& 0.000& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.136& 21.95 " 121.8 & 20.65 " 1.867& 0.000& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.125& 24.20 " 89.84 & 12.54 " 1.386& 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.841& 18.71 " 57.37 & 21.59 " 1.060& 0.002& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 9.651" 236.0 & 44.38 & 17.26 " 0.820& 0.005& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 14.76 " 180.9 & 37.39 " 16.56 " 0.627& 0.009& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 9.722" 235.9 & 38.59 " 55.19 & 0.483& 0.003& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 6.890" 94.35 & 29.96 " 49.66 & 0.397& 0.003& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 4.302" 180.8 & 26.06 " 25.13 " 0.327& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 7.550" 82.26 & 24.11 " 17.96 " 0.244& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 40.76 & 110.9 & 22.62 " 14.30 " 0.192& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 14.49 " 62.61 & 19.30 " 10.62 " 0.212& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 19.95 " 44.72 " 16.98 " 8.641" 0.180& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 47.37 & 36.50 " 15.47 " 10.38 " 0.157& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 185.2 & 30.37 " 16.16 " 13.86 " 0.159& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 135.4 & 25.83 " 13.99 " 12.47 " 0.155& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 22.94 " 12.83 " 0.147& 0.000& 31
Mean 0.000& 0.000& 0.116& 0.000& 0.000& 16.63 & 64.88 & 39.78 & 19.68 & 2.574& 0.008& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.214& 31.56 & 22.62 & 16.09 & 1.867& 0.002& 0.000&
Maximum 0.000& 0.000& 2.981& 0.000& 0.000& 185.2 & 236.0 & 251.7 & 55.19 & 9.346& 0.077& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.78 & 12.83 & 8.641& 0.147& 0.000& 0.000&
Total 0.000& 0.000& 3.583& 0.000& 0.000& 499.0 &2011 &1233 & 590.4 & 79.79 & 0.231& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 12.10 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 4418 &
Maximum Minimum
Daily 251.7 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2010
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.371& 2.932" 1.799& 0.000& 0.000& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.503& 2.354& 1.392& 0.000& 0.000& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.090& 1.763& 1.103& 0.000& 0.000& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.286& 1.351& 0.961& 0.000& 0.000& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.018& 0.983& 1.184& 0.904& 0.000& 0.000& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.209& 0.743& 1.066& 0.896& 0.000& 0.000& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.386& 0.550& 1.113& 0.862& 0.000& 0.000& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.482& 0.629& 1.261& 1.366& 0.000& 0.000& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.524& 10.03 & 1.129& 2.449& 0.000& 0.000& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.236& 7.351" 1.108& 1.895& 0.000& 0.000& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.156& 4.028" 1.014& 1.292& 0.000& 0.000& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.146& 14.39 " 2.272& 0.967& 0.000& 0.000& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.144& 10.62 " 18.35 " 0.763& 0.000& 0.000& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.211& 5.576" 11.95 " 0.731& 0.000& 0.000& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.350& 3.545" 6.048" 0.648& 0.000& 0.000& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 1.401& 2.808" 3.951" 0.545& 0.000& 0.000& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 2.140& 2.999" 3.173" 0.410& 0.000& 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 1.048& 3.031" 2.990" 0.318& 0.000& 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.637& 2.614& 3.528" 0.240& 0.000& 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.450& 2.098& 3.005" 0.119& 0.000& 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.359& 1.803& 2.394& 0.044& 0.000& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.309& 1.508& 2.236& 0.011& 0.000& 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.471& 1.221& 2.799& 0.001& 0.000& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 2.221& 1.012& 3.028" 0.000& 0.000& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 2.229& 0.867& 2.771" 0.000& 0.000& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 1.170& 0.885& 2.219& 0.000& 0.000& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.710& 1.436& 1.717& 0.000& 0.000& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.507& 2.030& 1.471& 0.000& 0.000& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.416& 5.217& 1.340& 0.000& 0.000& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.413& 8.041" 1.351& 0.000& 0.000& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 3.852" 1.741& 0.000& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.578& 3.326& 3.052& 0.657& 0.000& 0.000& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.399& 2.030& 2.236& 0.597& 0.000& 0.000& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 2.229& 14.39 & 18.35 & 2.449& 0.000& 0.000& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.371& 1.014& 0.000& 0.000& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 17.34 & 103.1 & 94.61 & 19.71 & 0.000& 0.000& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 0.643& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 234.8 &
Maximum Minimum
Daily 18.35 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2011
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 2.336& 0.000& 0.000& 0.000& 2.764& 40.77 & 37.58 & 7.572" 3.122" 0.679& 0.009& 1
2 0.000& 1.249& 0.000& 0.000& 0.000& 2.255& 18.96 " 34.93 " 9.124" 2.966" 0.466& 0.016& 2
3 0.000& 0.682& 0.000& 0.000& 0.000& 2.111& 16.35 " 45.28 " 10.48 " 5.346" 0.736& 0.001& 3
4 0.000& 0.374& 0.000& 0.000& 0.000& 1.667& 11.56 " 45.89 & 7.042" 4.838" 23.29 & 0.000& 4
5 0.000& 0.199& 0.000& 0.000& 0.000& 1.202& 9.621" 23.96 " 5.342" 3.447" 15.12 " 0.000& 5
6 0.000& 0.101& 0.000& 0.000& 0.000& 0.852& 9.090" 17.74 " 4.559" 2.624& 18.24 " 0.011& 6
7 0.000& 0.054& 0.000& 0.000& 0.000& 0.613& 9.144" 14.94 " 3.994" 2.106& 9.407" 0.081& 7
8 0.000& 0.027& 0.000& 0.000& 0.000& 0.488& 8.293" 13.83 " 3.384" 1.783& 12.09 " 0.039& 8
9 0.000& 0.045& 0.000& 0.000& 0.000& 0.375& 6.395" 15.00 " 2.924" 1.704& 14.73 " 0.029& 9
10 0.000& 0.017& 0.000& 0.000& 0.000& 0.297& 5.359" 12.85 " 2.636" 1.702& 7.206" 0.019& 10
11 0.000& 0.044& 0.000& 0.000& 0.000& 0.233& 5.128" 9.775" 2.417& 1.918& 4.109" 0.010& 11
12 0.000& 0.214& 0.000& 0.000& 0.000& 0.165& 8.373" 8.491" 2.159& 1.430& 2.855& 0.044& 12
13 0.000& 0.113& 0.000& 0.000& 0.000& 0.130& 11.15 " 7.625" 1.884& 1.081& 2.019& 2.521& 13
14 0.000& 0.002& 0.000& 0.000& 0.000& 0.155& 7.584" 9.528" 1.662& 0.844& 1.494& 9.156" 14
15 0.000& 0.001& 0.000& 0.000& 0.000& 0.129& 12.67 " 12.61 " 1.626& 0.679& 1.098& 4.465" 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.101& 33.90 " 26.57 " 2.583& 0.531& 0.797& 2.222& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.187& 13.90 " 15.75 " 8.868" 0.426& 0.689& 1.248& 17
18 0.000& 0.000& 0.006& 0.000& 0.000& 0.269& 9.392" 10.42 " 36.52 & 0.573& 1.391& 0.742& 18
19 0.000& 0.000& 2.375& 0.000& 0.000& 0.496& 7.560" 8.412" 37.30 & 0.893& 2.713& 0.435& 19
20 0.000& 0.000& 0.937& 0.000& 0.100& 1.372& 10.39 " 7.125" 14.67 " 1.146& 1.641& 0.270& 20
21 0.000& 0.000& 0.218& 0.000& 2.035& 1.364& 25.05 " 8.254" 10.34 " 0.891& 0.919& 0.143& 21
22 0.000& 0.000& 0.050& 0.000& 0.972& 1.148& 14.62 " 101.2 & 13.87 " 0.656& 0.538& 0.080& 22
23 0.000& 0.000& 0.026& 0.000& 1.076& 1.118& 10.52 " 38.79 & 11.47 " 2.879& 0.313& 0.048& 23
24 0.036& 0.000& 0.043& 0.000& 0.644& 3.200& 8.572" 22.39 " 7.767" 6.188" 0.160& 0.015& 24
25 6.534& 0.000& 0.014& 0.000& 0.366& 44.52 & 7.467" 16.79 " 5.680" 5.262" 0.106& 0.010& 25
26 3.365& 0.000& 0.000& 0.000& 0.201& 13.41 " 7.821" 12.53 " 4.947" 14.33 " 0.079& 0.006& 26
27 1.060& 0.000& 0.000& 0.000& 0.127& 6.539" 7.775" 10.69 " 5.692" 7.967" 0.040& 0.002& 27
28 0.383& 0.000& 0.000& 0.000& 0.085& 34.40 & 31.29 & 9.417" 7.339" 4.469" 0.022& 0.000& 28
29 1.369& 0.000& 0.000& 0.054& 49.71 & 56.03 & 8.525" 6.103" 2.742& 0.023& 0.000& 29
30 10.22 & 0.000& 0.000& 0.232& 21.49 " 40.30 " 7.623" 4.113" 1.722& 0.016& 0.000& 30
31 6.333" 0.000& 0.976& 61.41 & 7.774" 1.059& 0.000& 31
Mean 0.945& 0.195& 0.118& 0.000& 0.222& 6.425& 16.98 & 20.07 & 8.136& 2.817& 4.099& 0.697&
Median 0.000& 0.001& 0.000& 0.000& 0.000& 1.133& 10.39 & 12.85 & 5.686& 1.783& 1.008& 0.019&
Maximum 10.22 & 2.336& 2.375& 0.000& 2.035& 49.71 & 61.41 & 101.2 & 37.30 & 14.33 & 23.29 & 9.156&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.101& 5.128& 7.125& 1.626& 0.426& 0.016& 0.000&
Total 29.30 & 5.457& 3.669& 0.000& 6.870& 192.8 & 526.4 & 622.3 & 244.1 & 87.32 & 123.0 & 21.62 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.103& " ... Relative Uncertainty +/-10%
Ann. Median 0.531& & ... Relative Uncertainty +/-30%
Annual Total 1863 &
Maximum Minimum
Daily 101.2 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2012
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000" 0.000" 0.000" 8.033" 3.694" 1.552" 1.319" 2.429" 0.000" 0.008" 1
2 0.000& 0.000& 0.000" 0.000" 0.000" 10.77 " 3.424" 1.855" 1.143" 1.584" 0.000" 0.005" 2
3 0.000& 0.000& 0.000" 0.000" 0.000" 3.939" 3.122" 2.068" 1.284" 1.049" 0.000" 0.001" 3
4 0.000& 0.000& 0.000" 0.000" 0.000" 1.867" 2.753" 2.182" 9.447" 0.762" 0.048" 0.000" 4
5 0.000& 0.000& 0.000" 0.000" 11.11 $ 1.010" 2.360" 2.229" 15.39 " 0.526" 0.029" 0.000" 5
6 0.000& 0.000& 0.000" 0.000" 14.91 $ 0.582" 2.061" 2.005" 10.57 " 0.364" 0.020" 0.000" 6
7 0.000& 0.000& 0.000" 0.000" 3.945" 0.401" 2.070" 1.773" 6.275" 0.278" 0.017" 0.000" 7
8 0.000& 0.000& 0.000" 0.000" 3.253" 0.302" 3.471" 1.662" 4.053" 0.218" 0.012" 0.000" 8
9 0.000& 0.000& 0.000" 0.000" 1.509" 0.255" 5.382" 1.524" 2.884" 0.167" 0.004" 0.000" 9
10 0.000& 0.000& 0.000" 0.000" 0.715" 0.675" 4.668" 1.330" 2.214" 0.108" 0.000" 0.000" 10
11 0.000& 0.000& 0.000" 0.000" 0.403" 9.506" 3.611" 1.078" 1.753" 0.072" 0.000" 0.000" 11
12 0.000& 0.000& 0.000" 0.000" 0.246" 14.84 " 3.001" 1.173" 1.398" 0.047" 0.000" 0.000" 12
13 0.000& 0.000& 0.000" 0.000" 0.136" 49.22 $ 2.919" 4.571" 1.148" 0.046" 0.000" 2.279" 13
14 0.000& 0.000& 0.000" 0.000" 0.084" 22.37 $ 3.183" 6.676" 0.989" 0.046" 0.000" 5.590" 14
15 0.000& 0.000& 0.000" 0.000" 0.052" 12.24 " 4.193" 5.843" 0.827" 0.042" 0.000" 1.535" 15
16 0.000& 0.000& 0.000" 0.000" 0.039" 9.766" 3.791" 4.799" 0.663" 0.034" 0.000" 0.434" 16
17 0.000& 0.000& 0.000" 0.000" 0.020" 8.170" 3.105" 3.925" 0.523" 0.031" 0.000" 0.202" 17
18 0.000& 0.000& 0.000" 0.000" 0.028" 6.801" 2.596" 2.804" 0.515" 0.022" 0.000" 0.100" 18
19 0.000& 0.000& 0.000" 0.000" 0.017" 36.96 $ 2.266" 2.177" 0.571" 0.023" 0.000" 0.055" 19
20 0.000& 0.000& 0.000" 0.000" 0.011" 37.97 $ 2.113" 1.844" 0.654" 0.025" 0.000" 0.025" 20
21 0.000& 0.000& 0.000" 0.000" 0.009" 17.77 " 1.960" 2.130" 0.930" 0.014" 0.000" 0.014" 21
22 3.624& 0.000& 0.000" 0.000" 0.008" 12.17 " 1.754" 5.398" 6.567" 0.012" 0.009" 0.010" 22
23 1.629& 0.000" 0.000" 0.000" 0.005" 8.851" 1.628" 7.157" 7.694" 0.030" 0.117" 0.002" 23
24 0.420& 0.000" 0.000" 0.000" 0.001" 6.971" 1.598" 4.404" 3.501" 0.019" 0.048" 0.000" 24
25 0.124& 0.000" 0.000" 0.000" 0.000" 5.714" 1.985" 3.375" 2.065" 0.020" 0.042" 0.000" 25
26 0.043& 0.000" 0.000" 0.000" 0.000" 4.951" 2.280" 2.827" 1.548" 0.020" 0.026" 0.000" 26
27 0.024& 0.000" 0.000" 0.000" 0.000" 4.745" 1.942" 2.278" 5.842" 0.014" 0.008" 0.000" 27
28 0.003& 0.000" 0.000" 0.000" 0.000" 4.845" 1.734" 1.937" 11.68 " 0.005" 0.003" 0.000" 28
29 0.000& 0.000" 0.000" 0.000" 0.000" 4.538" 1.783" 1.798" 6.548" 0.001" 0.022" 0.000" 29
30 0.000& 0.000" 0.000" 0.000" 4.062" 1.542" 1.680" 3.804" 0.000" 0.009" 0.000" 30
31 0.000& 0.000" 0.031" 1.423" 1.488" 0.000" 0.000" 31
Mean 0.189& 0.000& 0.000" 0.000" 1.179$ 10.34 $ 2.691" 2.824" 3.793" 0.258" 0.014" 0.331"
Median 0.000& 0.000& 0.000" 0.000" 0.017$ 6.886$ 2.360" 2.130" 1.909" 0.034" 0.002" 0.000"
Maximum 3.624& 0.000& 0.000" 0.000" 14.91 $ 49.22 $ 5.382" 7.157" 15.39 " 2.429" 0.117" 5.590"
Minimum 0.000& 0.000& 0.000" 0.000" 0.000$ 0.255$ 1.423" 1.078" 0.515" 0.000" 0.000" 0.000"
Total 5.865& 0.000& 0.000" 0.000" 36.53 $ 310.3 $ 83.41 " 87.54 " 113.8 " 8.009" 0.416" 10.26 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1.793& " ... Relative Uncertainty +/-10%
Ann. Median 0.018& $ ... Relative Uncertainty +/-20%
Annual Total 656.1 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 49.22 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2013
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 1
2 0.000" 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 2
3 0.000" 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 3
4 0.000" 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 4
5 0.000" 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 5
6 0.000" 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 6
7 0.000" 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 7
8 0.000" 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 8
9 0.000" 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 9
10 0.000" 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 10
11 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 11
12 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 12
13 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 13
14 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 14
15 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 15
16 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 16
17 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 17
18 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 18
19 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 19
20 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 20
21 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 21
22 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 22
23 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 23
24 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 24
25 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 25
26 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 26
27 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 27
28 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 28
29 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 29
30 0.000" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 30
31 0.000" [ ] [ ] [ ] [ ] [ ] [ ] 31
Mean 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Median 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Maximum 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Minimum 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Total 0.000" 0.000! [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Missing Days 0 8 31 30 31 30 31 31 30 31 30 31
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 0.000! ! ... Not reviewed / Quality not known
Ann. Median 0.000! " ... Relative Uncertainty +/-10%
Annual Total 0.000! [ ... Not Available
Missing Days 314
Maximum Minimum
Daily 0.000! 0.000!
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2014
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 1
2 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 2
3 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 3
4 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 4
5 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 5
6 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 6
7 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 7
8 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 8
9 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 9
10 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 10
11 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 11
12 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 12
13 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 13
14 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 14
15 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 15
16 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 16
17 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 17
18 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 18
19 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 19
20 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 20
21 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 21
22 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 22
23 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 23
24 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 24
25 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 25
26 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 26
27 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 27
28 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 28
29 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 29
30 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 30
31 [ ] [ ] [ ] [ ] [ ] [ ] [ ] 31
Mean [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Median [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Maximum [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Minimum [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Total [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Missing Days 31 28 31 30 31 30 31 31 30 31 30 31
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean [ ] [ ... Not Available
Ann. Median [ ]
Annual Total [ ]
Missing Days 365
Maximum Minimum
Daily [ ] [ ]
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2015
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 [ ] [ ] [ ] [ ] [ ] 0.073" 0.602" 36.20 $ 7.917" 0.230" 0.020" 0.000" 1
2 [ ] [ ] [ ] [ ] [ ] 0.078" 0.583" 14.02 " 6.903" 0.172" 0.021" 0.000" 2
3 [ ] [ ] [ ] [ ] [ ] 0.069" 0.651" 8.602" 4.525" 0.123" 0.011" 0.000" 3
4 [ ] [ ] [ ] [ ] [ ] 0.135" 0.783" 6.486" 3.598" 0.090" 0.002" 0.000" 4
5 [ ] [ ] [ ] [ ] [ ] 0.330" 0.797" 5.297" 7.740" 0.086" 0.000" 0.000" 5
6 [ ] [ ] [ ] [ ] [ ] 0.520" 0.723" 4.573" 9.187" 0.070" 0.000" 0.021" 6
7 [ ] [ ] [ ] [ ] [ ] 0.486" 0.639" 4.247" 4.807" 0.042" 0.000" 0.330" 7
8 [ ] [ ] [ ] [ ] 0.037" 0.382" 0.599" 5.035" 3.375" 0.030" 0.000" 0.331" 8
9 [ ] [ ] [ ] [ ] 0.077" 0.250" 0.600" 6.971" 2.653" 0.022" 0.000" 0.104" 9
10 [ ] [ ] [ ] [ ] 0.053" 0.187" 0.669" 6.002" 2.196" 0.022" 0.000" 0.046" 10
11 [ ] [ ] [ ] [ ] 0.034" 0.142" 0.716" 5.299" 3.512" 0.026" 0.000" 0.019" 11
12 [ ] [ ] [ ] [ ] 0.038" 0.130" 0.621" 4.564" 17.75 $ 0.015" 0.000" 0.006" 12
13 [ ] [ ] [ ] [ ] 0.033" 0.113" 0.485" 3.810" 17.17 $ 0.008" 0.000" 0.002" 13
14 [ ] [ ] [ ] [ ] 0.016" 0.105" 0.415" 3.290" 8.820" 0.002" 0.000" 0.000" 14
15 [ ] [ ] [ ] [ ] 0.010" 0.104" 0.357" 2.808" 6.525" 0.000" 0.000" 0.000" 15
16 [ ] [ ] [ ] [ ] 0.008" 0.109" 0.308" 2.385" 4.973" 0.000" 0.000" 0.000" 16
17 [ ] [ ] [ ] [ ] 0.032" 0.094" 0.291" 2.224" 3.817" 0.000" 0.000" 0.000" 17
18 [ ] [ ] [ ] [ ] 0.113" 0.150" 0.287" 4.830" 3.028" 0.000" 0.000" 0.000" 18
19 [ ] [ ] [ ] [ ] 0.189" 0.732" 0.416" 6.635" 2.455" 0.000" 0.000" 0.000" 19
20 [ ] [ ] [ ] [ ] 0.500" 2.703" 7.799" 6.949" 1.920" 0.000" 0.000" 0.000" 20
21 [ ] [ ] [ ] [ ] 0.386" 2.275" 9.316" 10.84 " 1.541" 0.000" 0.000" 0.000" 21
22 [ ] [ ] [ ] [ ] 0.188" 7.867" 4.541" 21.86 $ 1.264" 0.000" 0.000" 0.000" 22
23 [ ] [ ] [ ] [ ] 0.149" 8.201" 4.830" 13.07 " 1.052" 0.000" 0.000" 0.000" 23
24 [ ] [ ] [ ] [ ] 0.132" 3.715" 7.659" 7.979" 0.850" 0.000" 0.000" 0.000" 24
25 [ ] [ ] [ ] [ ] 0.132" 2.265" 3.884" 5.431" 0.676" 0.000" 0.000" 0.000" 25
26 [ ] [ ] [ ] [ ] 0.179" 1.573" 2.782" 4.294" 0.549" 0.000" 0.000" 0.000" 26
27 [ ] [ ] [ ] [ ] 0.162" 1.180" 2.683" 3.627" 0.445" 0.000" 0.000" 0.000" 27
28 [ ] [ ] [ ] [ ] 0.108" 0.955" 2.269" 3.173" 0.370" 0.000" 0.000" 0.000" 28
29 [ ] [ ] [ ] 0.096" 0.785" 2.197" 3.160" 0.331" 0.000" 0.000" 0.000" 29
30 [ ] [ ] [ ] 0.098" 0.668" 2.486" 3.523" 0.288" 0.000" 0.000" 0.000" 30
31 [ ] [ ] 0.076" 42.93 $ 4.752" 0.037" 0.000" 31
Mean [ ] [ ] [ ] [ ] 0.119" 1.212" 3.352$ 7.159$ 4.341$ 0.032" 0.002" 0.028"
Median [ ] [ ] [ ] [ ] 0.097" 0.356" 0.716$ 5.035$ 3.201$ 0.000" 0.000" 0.000"
Maximum [ ] [ ] [ ] [ ] 0.500" 8.201" 42.93 $ 36.20 $ 17.75 $ 0.230" 0.021" 0.331"
Minimum [ ] [ ] [ ] [ ] 0.008" 0.069" 0.287$ 2.224$ 0.288$ 0.000" 0.000" 0.000"
Total [ ] [ ] [ ] [ ] 2.846" 36.37 " 103.9 $ 221.9 $ 130.2 $ 0.977" 0.055" 0.859"
Missing Days 31 28 31 30 7 0 0 0 0 0 0 0
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2.089$ " ... Relative Uncertainty +/-10%
Ann. Median 0.167$ $ ... Relative Uncertainty +/-20%
Annual Total 497.2 $ [ ... Not Available
Missing Days 127
Maximum Minimum
Daily 42.93 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2016
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.079" 0.000" 1.914" 3.524" 6.933" 11.30 " 11.06 " 60.82 $ 10.71 " 0.503" 0.000" 1
2 0.000" 0.105" 0.000" 1.475" 2.879" 5.850" 9.095" 8.969" 32.16 $ 27.93 $ 0.414" 0.000" 2
3 0.000" 0.061" 0.000" 1.173" 2.318" 5.195" 8.582" 6.847" 27.04 $ 15.40 " 0.332" 0.000" 3
4 0.000" 0.034" 0.000" 0.943" 1.912" 5.275" 12.83 " 33.22 $ 21.29 $ 11.91 " 0.265" 0.000" 4
5 0.000" 0.022" 0.000" 0.714" 1.616" 5.366" 10.33 " 41.80 $ 17.05 " 9.778" 0.206" 0.000" 5
6 0.000" 0.026" 0.000" 0.576" 1.346" 4.607" 8.360" 24.64 $ 14.76 " 10.14 " 0.164" 0.000" 6
7 0.000" 0.013" 0.000" 0.465" 2.126" 13.28 $ 7.752" 55.75 $ 19.78 $ 32.08 $ 0.123" 0.000" 7
8 0.000" 0.005" 0.000" 0.386" 4.994" 27.75 $ 18.02 $ 80.15 $ 81.88 $ 29.95 $ 0.102" 0.000" 8
9 0.000" 0.000" 0.000" 0.332" 4.833" 14.79 " 18.05 $ 44.61 $ 31.28 $ 28.66 $ 0.093" 0.000" 9
10 0.000" 0.000" 0.000" 0.281" 3.058" 19.47 $ 13.16 " 28.67 $ 21.87 $ 14.87 " 0.078" 0.000" 10
11 0.000" 0.000" 0.000" 6.846$ 2.236" 24.32 $ 13.52 " 30.85 $ 21.40 $ 9.878" 0.077" 0.000" 11
12 0.000" 0.000" 0.000" 33.67 $ 1.712" 14.18 " 10.37 " 74.13 $ 15.91 " 7.692" 0.068" 5.547$ 12
13 0.000" 0.000" 0.000" 30.68 $ 1.401" 18.91 $ 8.178" 32.47 $ 12.56 " 6.101" 0.053" 23.26 $ 13
14 0.000" 0.000" 0.000" 15.00 " 1.235" 35.83 $ 7.063" 24.58 $ 11.14 " 4.781" 0.033" 6.259" 14
15 0.000" 0.000" 0.000" 8.236" 1.145" 44.67 $ 6.449" 22.78 $ 11.00 " 3.993" 0.014" 2.394" 15
16 0.000" 0.000" 0.000" 6.180" 1.045" 26.78 $ 6.472" 31.47 $ 17.08 " 4.365" 0.019" 1.086" 16
17 0.000" 0.000" 0.000" 6.619" 1.139" 24.93 $ 12.25 " 30.67 $ 13.61 " 4.149" 0.034" 0.599" 17
18 0.000" 0.000" 0.000" 11.11 " 1.067" 19.88 $ 22.05 $ 93.51 $ 9.939" 3.737" 0.020" 0.384" 18
19 0.843" 0.000" 0.000" 9.247" 0.998" 15.42 " 14.79 " 38.93 $ 33.86 $ 3.345" 0.022" 0.251" 19
20 9.024$ 0.000" 0.000" 5.902" 0.969" 17.02 " 9.877" 27.38 $ 20.25 $ 5.309" 0.029" 0.166" 20
21 27.80 $ 0.000" 0.000" 4.155" 43.94 $ 34.30 $ 15.06 $ 22.86 $ 12.96 " 5.370" 0.024" 0.102" 21
22 7.913" 0.000" 0.000" 3.187" 56.46 $ 25.45 $ 22.83 $ 32.01 $ 10.73 " 3.468" 0.019" 0.092" 22
23 3.058" 0.000" 0.138" 2.577" 24.90 $ 21.27 " 14.83 " 23.07 $ 14.52 " 2.454" 0.025" 0.059" 23
24 1.385" 0.000" 1.659" 2.080" 23.69 $ 17.80 " 12.49 " 16.20 " 13.45 " 1.875" 0.031" 0.070" 24
25 0.774" 0.000" 2.441" 1.741" 22.43 $ 16.33 " 10.69 " 13.39 " 10.18 " 1.608" 0.020" 0.065" 25
26 0.537" 0.000" 3.833" 1.559" 13.39 " 17.39 " 9.446" 11.85 " 8.294" 1.440" 0.012" 0.036" 26
27 0.307" 0.000" 40.69 $ 1.382" 10.73 " 12.70 " 8.407" 76.57 $ 9.142" 1.226" 0.003" 0.033" 27
28 0.165" 0.000" 17.01 $ 1.339" 13.73 " 11.17 " 7.624" 107.7 $ 20.02 $ 1.022" 0.000" 0.057" 28
29 0.084" 0.000" 6.746" 1.417" 19.32 $ 13.96 " 7.207" 127.0 $ 15.02 " 0.861" 0.000" 0.049" 29
30 0.097" 3.909" 2.592" 12.26 " 13.42 " 8.409" 52.57 $ 9.488" 0.701" 0.000" 0.041" 30
31 0.122" 2.664" 8.778" 9.622" 45.20 $ 0.599" 0.037" 31
Mean 1.681$ 0.012" 2.551$ 5.460$ 9.394$ 17.81 $ 11.46 $ 41.00 $ 20.62 $ 8.561$ 0.093" 1.309$
Median 0.000$ 0.000" 0.000$ 1.997$ 2.879$ 16.68 $ 10.33 $ 31.47 $ 15.46 $ 4.781$ 0.032" 0.049$
Maximum 27.80 $ 0.105" 40.69 $ 33.67 $ 56.46 $ 44.67 $ 22.83 $ 127.0 $ 81.88 $ 32.08 $ 0.503" 23.26 $
Minimum 0.000$ 0.000" 0.000$ 0.281$ 0.969$ 4.607$ 6.449$ 6.847$ 8.294$ 0.599$ 0.000" 0.000$
Total 52.11 $ 0.344" 79.09 $ 163.8 $ 291.2 $ 534.2 $ 355.1 $1271 $ 618.5 $ 265.4 $ 2.786" 40.59 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 10.04 $ " ... Relative Uncertainty +/-10%
Ann. Median 2.969$ $ ... Relative Uncertainty +/-20%
Annual Total 3674 $
Maximum Minimum
Daily 127.0 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2017
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.037" 0.000" 0.047" 0.018" 0.007" 0.222" 0.378" 29.24 $ 6.331" 17.85 " 0.381" 0.002" 1
2 0.035" 0.000" 0.041" 0.013" 0.007" 0.205" 1.222" 17.28 $ 6.849" 13.97 " 0.257" 0.002" 2
3 0.025" 0.000" 0.017" 0.007" 0.008" 0.190" 1.970" 11.46 " 6.506" 10.78 " 0.178" 0.000" 3
4 0.011" 0.000" 0.017" 0.004" 0.010" 0.176" 1.788" 10.89 " 5.674" 9.324" 0.133" 0.059" 4
5 0.001" 0.000" 0.015" 0.003" 0.016" 0.171" 1.891" 8.824" 5.854" 7.867" 0.093" 0.060" 5
6 0.000" 0.000" 0.007" 0.003" 0.016" 0.160" 2.296" 7.357" 5.078" 6.728" 0.063" 0.039" 6
7 0.000" 0.000" 0.001" 0.004" 0.012" 0.160" 2.821" 6.273" 4.285" 5.845" 0.046" 0.070" 7
8 0.000" 0.000" 0.000" 0.001" 0.011" 0.158" 3.182" 11.63 $ 3.781" 5.763" 0.032" 0.049" 8
9 0.000" 0.000" 0.000" 0.001" 0.009" 0.148" 2.720" 56.21 $ 3.487" 5.734" 0.032" 0.010" 9
10 0.000" 0.462" 0.000" 0.001" 0.008" 0.138" 2.073" 36.71 $ 3.224" 4.656" 0.033" 0.003" 10
11 0.000" 9.268" 0.000" 0.001" 0.011" 0.123" 1.594" 19.65 $ 2.958" 3.885" 0.077" 0.058" 11
12 0.000" 17.37 " 0.000" 0.000" 0.014" 0.102" 1.380" 40.11 $ 2.716" 3.442" 0.149" 0.123" 12
13 0.000" 7.930" 0.000" 0.000" 0.015" 0.097" 1.340" 33.79 $ 2.393" 3.129" 0.072" 0.430" 13
14 0.000" 4.014" 0.000" 0.000" 0.027" 0.111" 1.331" 100.3 $ 2.046" 2.550" 0.078" 0.247" 14
15 0.000" 2.203" 0.001" 0.002" 0.326" 0.092" 1.923" 81.75 $ 1.788" 2.079" 0.090" 0.113" 15
16 0.000" 1.326" 0.001" 0.006" 0.131" 0.082" 3.550" 34.44 $ 1.563" 1.800" 0.018" 0.059" 16
17 0.000" 0.927" 0.002" 0.012" 0.067" 0.091" 3.278" 24.30 $ 1.361" 1.737" 0.028" 0.022" 17
18 0.000" 0.630" 0.002" 0.029" 0.082" 0.115" 2.253" 22.43 $ 1.197" 2.085" 0.022" 0.029" 18
19 0.000" 0.442" 0.000" 0.035" 0.145" 0.134" 1.692" 33.69 $ 1.136" 1.839" 0.025" 0.028" 19
20 0.000" 0.297" 0.000" 0.011" 0.281" 0.146" 7.947" 33.65 $ 1.049" 1.428" 0.022" 0.021" 20
21 0.000" 0.294" 0.000" 0.006" 0.871" 0.162" 11.83 " 22.77 $ 1.798" 1.044" 0.020" 0.023" 21
22 0.000" 0.457" 0.061" 0.012" 1.515" 0.165" 8.133" 17.75 " 10.95 " 0.843" 0.022" 0.024" 22
23 0.000" 0.442" 0.032" 0.025" 1.412" 0.167" 7.378" 14.81 " 18.75 " 0.750" 0.018" 0.024" 23
24 0.000" 0.280" 0.041" 0.036" 1.004" 0.150" 9.046" 12.35 " 10.48 " 0.714" 0.010" 0.016" 24
25 0.000" 0.153" 0.043" 0.038" 0.709" 0.143" 8.414" 10.67 " 73.45 $ 0.657" 0.006" 0.008" 25
26 0.000" 0.122" 0.026" 0.042" 0.587" 0.162" 11.99 " 9.540" 177.4 $ 0.646" 0.007" 0.002" 26
27 0.000" 0.032" 0.029" 0.036" 0.482" 0.163" 21.57 $ 8.652" 62.65 $ 0.724" 0.007" 0.000" 27
28 0.000" 0.032" 0.035" 0.030" 0.391" 0.156" 15.99 " 7.697" 64.62 $ 0.997" 0.002" 0.000" 28
29 0.000" 0.028" 0.026" 0.381" 0.160" 17.01 " 6.826" 36.93 $ 0.925" 0.000" 0.000" 29
30 0.000" 0.021" 0.014" 0.296" 0.207" 13.27 " 6.251" 23.57 $ 0.727" 0.001" 0.000" 30
31 0.000" 0.021" 0.251" 13.87 " 6.273" 0.536" 0.000" 31
Mean 0.004" 1.667" 0.016" 0.014" 0.294" 0.148" 5.972$ 23.98 $ 18.33 $ 3.905" 0.064" 0.049"
Median 0.000" 0.287" 0.007" 0.009" 0.082" 0.157" 2.821$ 17.28 $ 4.681$ 2.079" 0.030" 0.023"
Maximum 0.037" 17.37 " 0.061" 0.042" 1.515" 0.222" 21.57 $ 100.3 $ 177.4 $ 17.85 " 0.381" 0.430"
Minimum 0.000" 0.000" 0.000" 0.000" 0.007" 0.082" 0.378$ 6.251$ 1.049$ 0.536" 0.000" 0.000"
Total 0.109" 46.68 " 0.487" 0.416" 9.103" 4.454" 185.1 $ 743.5 $ 549.9 $ 121.1 " 1.922" 1.519"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4.560$ " ... Relative Uncertainty +/-10%
Ann. Median 0.131$ $ ... Relative Uncertainty +/-20%
Annual Total 1664 $
Maximum Minimum
Daily 177.4 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2018
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.000" 0.000" 0.000" 0.000" 0.084" 2.139" 15.91 $ 28.83 $ 1.134" 0.031" 0.119" 1
2 0.000" 0.000" 0.000" 0.000" 0.000" 0.062" 2.902" 42.73 $ 23.40 $ 1.089" 0.023" 0.084" 2
3 0.000" 0.000" 0.000" 0.000" 0.000" 0.053" 9.523" 28.94 $ 18.09 $ 1.018" 0.071" 0.069" 3
4 0.000" 0.000" 0.000" 0.000" 0.000" 0.059" 11.01 " 35.93 $ 13.47 " 3.238" 0.043" 0.057" 4
5 0.000" 0.000" 0.000" 0.000" 0.000" 0.112" 13.53 " 63.11 $ 11.37 " 9.860" 0.027" 0.036" 5
6 0.000" 0.000" 0.000" 0.000" 0.000" 0.084" 7.736" 31.14 $ 10.02 " 8.431" 0.020" 0.288" 6
7 0.000" 0.000" 0.000" 0.000" 0.000" 0.052" 4.958" 24.60 $ 9.084" 6.656" 0.011" 0.159" 7
8 0.000" 0.000" 0.000" 0.000" 0.000" 0.207" 3.770" 20.37 " 9.399" 4.174" 0.012" 0.088" 8
9 0.000" 0.000" 0.000" 0.000" 0.000" 0.196" 3.127" 103.0 $ 9.775" 2.955" 0.017" 0.076" 9
10 0.000" 0.000" 0.000" 0.000" 0.000" 5.776" 2.662" 114.9 $ 8.404" 2.240" 0.024" 0.143" 10
11 0.000" 0.000" 0.000" 0.000" 0.000" 13.50 " 2.298" 43.39 $ 7.875" 1.780" 0.021" 0.104" 11
12 0.000" 0.000" 0.000" 0.000" 0.000" 5.486" 1.992" 31.01 $ 7.240" 1.464" 0.011" 0.072" 12
13 0.000" 0.000" 0.000" 0.000" 0.000" 3.411" 2.279" 23.69 $ 6.253" 1.347" 0.011" 0.043" 13
14 0.000" 0.000" 0.000" 0.000" 0.000" 2.432" 3.085" 32.78 $ 5.765" 1.556" 0.014" 0.020" 14
15 0.000" 0.000" 0.000" 0.000" 0.000" 1.760" 8.422" 29.50 $ 5.467" 1.968" 0.016" 0.033" 15
16 0.164" 0.000" 0.000" 0.000" 0.000" 1.327" 8.670" 22.05 $ 4.691" 1.941" 0.018" 0.141" 16
17 1.128" 0.000" 0.000" 0.000" 0.000" 1.078" 6.183" 20.93 $ 4.027" 1.520" 0.025" 0.034" 17
18 0.619" 0.000" 0.000" 0.000" 0.000" 0.957" 5.327" 19.53 $ 3.831" 1.124" 0.020" 0.026" 18
19 0.285" 0.000" 0.000" 0.000" 0.000" 0.977" 4.230" 13.92 " 3.758" 0.850" 0.008" 0.017" 19
20 0.352" 0.000" 0.000" 0.000" 0.000" 1.268" 3.684" 11.91 " 3.362" 0.538" 0.003" 0.009" 20
21 0.215" 0.000" 0.000" 0.000" 0.000" 1.689" 7.753" 11.94 " 2.960" 0.513" 0.008" 0.005" 21
22 0.139" 0.000" 0.000" 0.000" 0.000" 1.792" 37.51 $ 17.14 " 2.628" 0.432" 0.022" 0.001" 22
23 0.092" 0.000" 0.000" 0.000" 0.000" 1.495" 24.16 $ 14.44 " 2.365" 0.374" 0.414" 0.000" 23
24 0.064" 0.000" 0.000" 0.000" 0.000" 1.243" 13.72 " 11.22 " 2.069" 0.317" 0.675" 0.000" 24
25 0.041" 0.000" 0.000" 0.000" 0.000" 1.070" 10.92 " 9.644" 1.820" 0.244" 0.438" 0.000" 25
26 0.035" 0.000" 0.000" 0.000" 0.181" 0.935" 23.83 $ 8.539" 1.545" 0.182" 0.624" 0.000" 26
27 0.024" 0.000" 0.000" 0.000" 0.111" 3.940" 17.20 " 7.826" 1.310" 0.137" 0.430" 0.000" 27
28 0.013" 0.000" 0.000" 0.000" 0.066" 8.295" 15.10 " 10.56 $ 1.148" 0.102" 0.351" 0.000" 28
29 0.005" 0.000" 0.000" 0.073" 4.870" 11.86 " 27.17 $ 1.067" 0.081" 0.259" 0.000" 29
30 0.001" 0.000" 0.000" 0.043" 2.979" 12.15 " 38.28 $ 1.121" 0.063" 0.174" 0.000" 30
31 0.000" 0.000" 0.057" 11.24 " 25.98 $ 0.047" 0.000" 31
Mean 0.102" 0.000" 0.000" 0.000" 0.017" 2.239" 9.451$ 29.42 $ 7.072$ 1.851" 0.127" 0.052"
Median 0.000" 0.000" 0.000" 0.000" 0.000" 1.255" 7.753$ 23.69 $ 5.079$ 1.124" 0.023" 0.033"
Maximum 1.128" 0.000" 0.000" 0.000" 0.181" 13.50 " 37.51 $ 114.9 $ 28.83 $ 9.860" 0.675" 0.288"
Minimum 0.000" 0.000" 0.000" 0.000" 0.000" 0.052" 1.992$ 7.826$ 1.067$ 0.047" 0.003" 0.000"
Total 3.176" 0.000" 0.000" 0.000" 0.531" 67.18 " 293.0 $ 912.1 $ 212.2 $ 57.38 " 3.823" 1.622"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4.249$ " ... Relative Uncertainty +/-10%
Ann. Median 0.059$ $ ... Relative Uncertainty +/-20%
Annual Total 1551 $
Maximum Minimum
Daily 114.9 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2019
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.000" 0.000" 0.000" 0.070" 0.037" 7.651" 1.885" 30.72 $ 0.644" 0.014" 0.000" 1
2 0.000" 0.000" 0.000" 0.000" 0.023" 0.048" 7.288" 1.664" 43.95 $ 0.535" 0.017" 0.000" 2
3 0.000" 0.000" 0.000" 0.000" 0.016" 0.030" 4.729" 1.521" 37.23 $ 0.431" 0.011" 0.000" 3
4 0.000" 0.000" 0.000" 0.000" 0.014" 0.024" 4.093" 1.470" 20.31 $ 0.799" 0.006" 0.000" 4
5 0.000" 0.000" 0.000" 0.000" 0.031" 0.012" 13.75 " 1.715" 14.33 " 4.555" 0.001" 0.000" 5
6 0.000" 0.000" 0.000" 0.000" 0.077" 0.010" 11.96 " 2.389" 11.10 " 3.210" 0.000" 0.000" 6
7 0.000" 0.000" 0.000" 0.000" 0.080" 0.610" 11.81 " 2.850" 9.022" 2.100" 0.000" 0.000" 7
8 0.000" 0.000" 0.000" 0.000" 0.088" 2.154" 8.701" 2.790" 7.655" 1.392" 0.000" 0.000" 8
9 0.000" 0.000" 0.000" 0.000" 0.100" 5.405" 6.614" 2.564" 6.740" 1.063" 0.000" 0.000" 9
10 0.000" 0.000" 0.000" 0.000" 0.135" 4.938" 5.232" 2.394" 5.814" 0.822" 0.000" 0.000" 10
11 0.000" 0.000" 0.000" 0.000" 0.121" 5.126" 4.236" 2.102" 4.877" 0.616" 0.000" 0.000" 11
12 0.000" 0.000" 0.000" 0.000" 0.080" 5.938" 3.485" 1.821" 4.149" 0.574" 0.000" 0.000" 12
13 0.000" 0.000" 0.000" 0.000" 0.065" 4.901" 3.142" 1.631" 3.740" 0.478" 0.000" 0.000" 13
14 0.000" 0.000" 0.000" 0.000" 0.048" 3.200" 3.066" 1.974" 3.339" 0.534" 0.000" 0.000" 14
15 0.000" 0.000" 0.000" 0.000" 0.031" 2.758" 2.866" 30.25 $ 3.207" 0.483" 0.000" 0.000" 15
16 0.000" 0.000" 0.000" 0.000" 0.100" 2.641" 2.551" 12.18 " 3.267" 0.466" 0.000" 0.000" 16
17 0.000" 0.000" 0.000" 0.000" 0.071" 2.351" 2.239" 41.37 $ 2.734" 0.359" 0.000" 0.000" 17
18 0.000" 0.000" 0.000" 0.000" 0.091" 2.131" 2.082" 17.27 $ 2.332" 0.279" 0.000" 0.000" 18
19 0.000" 0.000" 0.000" 0.570" 0.047" 1.738" 3.171" 10.09 " 2.513" 0.195" 0.000" 0.000" 19
20 0.000" 0.000" 0.000" 0.570" 0.038" 1.343" 18.27 $ 7.541" 3.566" 0.124" 0.000" 0.000" 20
21 0.000" 0.000" 0.000" 0.153" 0.049" 1.113" 11.76 " 5.924" 3.455" 0.090" 0.000" 0.000" 21
22 0.000" 0.000" 0.000" 0.183" 0.038" 1.171" 7.855" 4.864" 2.594" 0.063" 0.000" 0.000" 22
23 0.000" 0.000" 0.000" 0.079" 0.046" 14.10 " 6.603" 6.419" 2.036" 0.052" 0.000" 0.000" 23
24 0.000" 0.000" 0.000" 0.048" 0.047" 12.98 " 5.205" 8.305" 1.710" 0.036" 0.000" 0.000" 24
25 0.000" 0.000" 0.000" 0.039" 0.077" 6.257" 4.369" 5.988" 1.415" 0.027" 0.000" 0.000" 25
26 0.000" 0.000" 0.000" 0.051" 0.059" 4.323" 3.901" 4.374" 1.211" 0.021" 0.000" 0.000" 26
27 0.000" 0.000" 0.000" 0.084" 0.058" 6.258" 3.394" 3.548" 1.053" 0.012" 0.000" 0.000" 27
28 0.000" 0.000" 0.000" 0.062" 0.037" 7.110" 3.066" 3.060" 0.973" 0.010" 0.000" 0.000" 28
29 0.000" 0.000" 0.065" 0.047" 4.900" 2.702" 3.196" 0.867" 0.009" 0.000" 0.000" 29
30 0.000" 0.000" 0.060" 0.032" 4.252" 2.365" 50.08 $ 0.756" 0.013" 0.000" 0.000" 30
31 0.000" 0.000" 0.025" 2.123" 55.54 $ 0.016" 0.000" 31
Mean 0.000" 0.000" 0.000" 0.066" 0.059" 3.595" 5.815$ 9.638$ 7.889$ 0.645" 0.002" 0.000"
Median 0.000" 0.000" 0.000" 0.000" 0.049" 2.700" 4.236$ 3.196$ 3.397$ 0.431" 0.000" 0.000"
Maximum 0.000" 0.000" 0.000" 0.570" 0.135" 14.10 " 18.27 $ 55.54 $ 43.95 $ 4.555" 0.017" 0.000"
Minimum 0.000" 0.000" 0.000" 0.000" 0.014" 0.010" 2.082$ 1.470$ 0.756$ 0.009" 0.000" 0.000"
Total 0.000" 0.000" 0.000" 1.966" 1.841" 107.9 " 180.3 $ 298.8 $ 236.7 $ 20.01 " 0.049" 0.000"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2.322$ " ... Relative Uncertainty +/-10%
Ann. Median 0.027$ $ ... Relative Uncertainty +/-20%
Annual Total 847.4 $
Maximum Minimum
Daily 55.54 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2020
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.000" 0.000" 0.000" 0.000" 2.441" 2.260" 2.233" 2.252" 1.469" 0.006" 0.000" 1
2 0.000" 0.000" 0.000" 0.000" 0.000" 1.802" 1.719" 1.888" 6.196" 1.390" 0.191" 0.000" 2
3 0.000" 0.000" 0.000" 0.000" 0.000" 1.524" 1.329" 21.65 $ 5.537" 1.293" 5.400" 0.000" 3
4 0.000" 0.000" 0.000" 0.000" 0.000" 1.016" 1.066" 24.22 $ 3.496" 1.360" 2.574" 0.000" 4
5 0.000" 0.000" 0.000" 0.000" 0.000" 0.679" 0.866" 20.76 $ 2.492" 1.092" 1.302" 0.000" 5
6 0.000" 0.000" 0.000" 0.000" 0.000" 0.465" 0.791" 11.47 " 5.944$ 0.848" 0.651" 0.000" 6
7 0.000" 0.000" 0.000" 0.000" 0.000" 0.347" 0.948" 7.156" 44.14 $ 0.682" 0.353" 0.000" 7
8 0.000" 0.000" 0.000" 0.000" 0.000" 0.264" 1.347" 5.268" 14.97 $ 0.736" 0.234" 0.000" 8
9 0.000" 0.000" 0.000" 0.000" 0.000" 0.200" 1.541" 5.174" 8.558" 0.858" 0.281" 0.000" 9
10 0.000" 0.000" 0.000" 0.000" 0.000" 0.155" 1.532" 14.35 " 7.072" 0.935" 1.163" 0.000" 10
11 0.000" 0.000" 0.000" 0.000" 0.000" 0.178" 1.403" 15.35 " 6.453" 0.676" 1.831" 0.000" 11
12 0.000" 0.000" 0.000" 0.000" 0.000" 0.261" 1.136" 15.07 " 4.734" 0.515" 1.360" 0.000" 12
13 0.000" 0.000" 0.000" 0.000" 0.000" 1.089" 0.950" 22.85 $ 3.358" 0.421" 0.890" 0.000" 13
14 0.000" 0.000" 0.000" 0.000" 0.000" 1.805" 3.896" 17.18 $ 2.735" 0.349" 0.685" 0.000" 14
15 0.000" 0.000" 0.000" 0.000" 0.000" 1.446" 9.100" 11.06 " 2.353" 0.308" 0.980" 0.000" 15
16 0.000" 0.000" 0.000" 0.000" 0.000" 0.934" 5.039" 15.57 " 2.035" 0.246" 1.533" 0.000" 16
17 0.000" 0.000" 0.000" 0.000" 0.000" 0.876" 6.571" 14.99 " 1.654" 0.162" 0.956" 0.000" 17
18 0.000" 0.000" 0.000" 0.000" 0.000" 3.080" 6.799" 10.33 " 1.440" 0.112" 0.621" 0.000" 18
19 0.000" 0.000" 0.000" 0.000" 0.000" 4.274" 4.163" 7.578" 1.399" 0.084" 0.399" 0.000" 19
20 0.000" 0.000" 0.000" 0.000" 0.000" 2.365" 3.020" 5.951" 1.521" 0.080" 0.234" 0.000" 20
21 0.000" 0.000" 0.000" 0.000" 0.000" 1.634" 2.365" 5.091" 1.968" 0.048" 0.141" 0.000" 21
22 0.000" 0.000" 0.000" 0.000" 0.000" 1.129" 1.899" 4.621" 1.951" 0.037" 0.078" 0.000" 22
23 0.000" 0.000" 0.000" 0.000" 0.000" 2.195" 1.656" 4.090" 1.658" 0.044" 0.038" 0.000" 23
24 0.000" 0.000" 0.000" 0.000" 0.000" 4.667" 1.634" 3.770" 1.331" 0.016" 0.015" 0.000" 24
25 0.000" 0.000" 0.000" 0.000" 0.000" 3.094" 1.461" 3.738" 0.983" 0.019" 0.002" 0.000" 25
26 0.000" 0.000" 0.000" 0.000" 0.042" 1.893" 1.490" 3.448" 0.983" 0.002" 0.000" 0.000" 26
27 0.000" 0.000" 0.000" 0.000" 0.090" 1.439" 1.888" 2.868" 2.033" 0.000" 0.000" 0.000" 27
28 0.000" 0.000" 0.000" 0.000" 0.170" 1.446" 9.347" 2.475" 3.569" 0.000" 0.000" 0.000" 28
29 0.000" 0.000" 0.000" 0.000" 0.421" 1.894" 7.929" 2.140" 2.698" 0.000" 0.000" 0.000" 29
30 0.000" 0.000" 0.000" 3.542" 2.471" 4.120" 1.805" 1.865" 0.000" 0.000" 0.000" 30
31 0.000" 0.000" 4.870" 2.896" 1.563" 0.000" 0.000" 31
Mean 0.000" 0.000" 0.000" 0.000" 0.295" 1.569" 2.973" 9.216$ 4.913$ 0.445" 0.731" 0.000"
Median 0.000" 0.000" 0.000" 0.000" 0.000" 1.446" 1.719" 5.951$ 2.423$ 0.246" 0.317" 0.000"
Maximum 0.000" 0.000" 0.000" 0.000" 4.870" 4.667" 9.347" 24.22 $ 44.14 $ 1.469" 5.400" 0.000"
Minimum 0.000" 0.000" 0.000" 0.000" 0.000" 0.155" 0.791" 1.563$ 0.983$ 0.000" 0.000" 0.000"
Total 0.000" 0.000" 0.000" 0.000" 9.136" 47.06 " 92.16 " 285.7 $ 147.4 $ 13.78 " 21.92 " 0.000"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1.686$ " ... Relative Uncertainty +/-10%
Ann. Median 0.000$ $ ... Relative Uncertainty +/-20%
Annual Total 617.1 $
Maximum Minimum
Daily 44.14 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2021
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.000" 0.000" 0.000" 3.706" 26.93 $ 17.08 " 551.6 $ 17.37 " 25.36 $ 2.572" 0.047" 1
2 0.000" 0.000" 0.000" 0.000" 3.235" 20.31 $ 25.29 $ 165.1 $ 24.45 $ 55.28 $ 1.835" 0.038" 2
3 0.000" 0.000" 0.000" 0.000" 1.868" 14.23 " 18.32 " 83.84 $ 28.08 $ 19.45 $ 1.358" 0.034" 3
4 0.000" 0.000" 29.23 $ 0.000" 1.257" 11.36 " 20.71 $ 58.32 $ 17.12 " 12.72 " 1.099" 0.053" 4
5 0.000" 0.000" 10.64 $ 0.000" 164.6 $ 9.497" 76.46 $ 46.68 $ 13.13 " 10.18 " 1.407" 0.050" 5
6 0.000" 0.000" 1.528" 0.000" 47.72 $ 8.954" 51.89 $ 36.73 $ 10.78 " 8.811" 0.933" 0.058" 6
7 0.000" 0.000" 0.656" 0.000" 34.07 $ 9.440" 163.4 $ 30.06 $ 8.785" 6.842" 0.687" 0.074" 7
8 0.000" 0.000" 0.329" 0.000" 18.79 $ 7.854" 63.57 $ 26.78 $ 7.220" 6.321" 0.555" 0.047" 8
9 0.000" 0.433" 0.201" 0.000" 13.42 " 6.587" 620.8 $ 34.76 $ 145.8 $ 6.081" 0.430" 0.009" 9
10 0.000" 0.248" 0.260" 0.000" 10.78 " 10.71 $ 353.6 $ 78.59 $ 136.4 $ 4.831" 0.328" 0.001" 10
11 0.000" 0.100" 0.276" 2.003" 8.907" 28.69 $ 85.74 $ 102.7 $ 41.34 $ 5.006" 0.248" 0.000" 11
12 0.000" 0.034" 0.265" 36.50 $ 8.045" 16.62 " 114.2 $ 42.82 $ 26.71 $ 10.10 " 0.186" 0.000" 12
13 0.000" 0.027" 0.224" 23.36 $ 8.452" 12.00 " 395.2 $ 32.37 $ 20.47 $ 7.781" 0.125" 0.000" 13
14 0.000" 0.016" 0.194" 7.442" 7.004" 9.785" 119.2 $ 25.96 $ 16.11 " 5.184" 0.084" 0.000" 14
15 0.000" 0.006" 0.150" 3.913" 5.533" 12.09 " 132.6 $ 21.65 $ 13.40 " 4.127" 0.055" 0.000" 15
16 0.000" 0.000" 0.082" 2.499" 4.957" 13.75 " 119.2 $ 19.14 " 33.57 $ 3.381" 0.051" 0.000" 16
17 0.000" 0.000" 0.046" 1.695" 4.567" 13.95 " 70.81 $ 17.21 " 28.53 $ 2.908" 0.067" 0.000" 17
18 0.000" 0.000" 0.043" 1.223" 4.157" 10.93 " 58.09 $ 16.05 " 20.62 " 2.442" 0.075" 0.000" 18
19 0.000" 0.000" 0.050" 0.940" 3.907" 8.460" 50.18 $ 33.99 $ 22.14 $ 4.099" 0.039" 0.000" 19
20 0.000" 0.000" 0.047" 0.767" 3.402" 27.79 $ 44.02 $ 109.8 $ 16.52 " 14.66 " 0.030" 0.000" 20
21 0.000" 0.000" 0.041" 0.663" 3.037" 75.04 $ 130.1 $ 36.53 $ 11.81 " 14.78 " 0.276" 0.000" 21
22 0.000" 0.000" 0.048" 0.518" 4.549" 43.77 $ 96.15 $ 31.77 $ 9.479" 8.514" 18.37 $ 0.000" 22
23 0.000" 0.000" 0.050" 0.461" 40.47 $ 27.34 $ 60.52 $ 23.60 $ 7.843" 4.798" 10.08 " 0.000" 23
24 0.000" 0.000" 0.042" 0.380" 43.23 $ 19.83 $ 63.76 $ 18.31 " 6.768" 3.286" 4.147" 0.000" 24
25 0.000" 0.000" 0.038" 0.311" 19.96 $ 15.88 " 41.75 $ 15.23 " 6.086" 2.730" 2.108" 0.000" 25
26 0.000" 0.000" 0.026" 0.252" 12.50 " 13.43 " 43.44 $ 14.33 " 5.740" 6.379" 1.149" 0.000" 26
27 0.000" 0.000" 0.018" 0.221" 9.386" 12.37 " 131.3 $ 21.84 $ 5.989" 13.67 " 0.584" 0.000" 27
28 0.000" 0.000" 0.010" 0.190" 7.388" 35.75 $ 58.34 $ 19.79 " 6.800" 11.96 " 0.309" 0.000" 28
29 0.000" 0.002" 0.262" 10.43 " 29.08 $ 156.6 $ 15.56 " 6.372" 6.880" 0.180" 0.000" 29
30 0.000" 0.000" 2.034" 35.81 $ 24.24 $ 148.6 $ 15.97 " 6.128" 4.638" 0.089" 0.000" 30
31 0.000" 0.000" 37.74 $ 79.24 $ 15.58 " 3.437" 0.000" 31
Mean 0.000" 0.031" 1.435$ 2.854$ 18.80 $ 19.22 $ 116.5 $ 56.86 $ 24.05 $ 9.569$ 1.649$ 0.013"
Median 0.000" 0.000" 0.048$ 0.346$ 8.452$ 13.85 $ 76.46 $ 30.06 $ 14.75 $ 6.379$ 0.379$ 0.000"
Maximum 0.000" 0.433" 29.23 $ 36.50 $ 164.6 $ 75.04 $ 620.8 $ 551.6 $ 145.8 $ 55.28 $ 18.37 $ 0.074"
Minimum 0.000" 0.000" 0.000$ 0.000$ 1.257$ 6.587$ 17.08 $ 14.33 $ 5.740$ 2.442$ 0.030$ 0.000"
Total 0.000" 0.864" 44.49 $ 85.63 $ 582.8 $ 576.7 $3610 $1763 $ 721.6 $ 296.6 $ 49.46 $ 0.411"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 21.18 $ " ... Relative Uncertainty +/-10%
Ann. Median 3.437$ $ ... Relative Uncertainty +/-20%
Annual Total 7731 $
Maximum Minimum
Daily 620.8 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2022
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.000" 0.000" 0.000" 0.000" 1.152" 3.115" 22.80 $ 9.270" 2.968" 8.625" 0.013" 1
2 0.000" 0.000" 0.000" 0.000" 0.000" 1.038" 2.723" 144.8 $ 8.346" 5.898" 5.528" 0.016" 2
3 0.000" 0.000" 0.000" 0.000" 0.000" 0.958" 2.426" 227.0 $ 7.820" 8.956" 4.205" 0.023" 3
4 0.000" 0.000" 0.000" 0.656" 0.000" 0.845" 2.189" 148.7 $ 8.388" 5.557" 3.198" 0.033" 4
5 0.000" 0.000" 0.000" 0.738" 0.000" 0.784" 2.134" 64.93 $ 151.9 $ 4.457" 2.236" 0.036" 5
6 0.000" 0.000" 0.000" 0.160" 0.000" 0.714" 2.435" 46.11 $ 49.87 $ 5.310" 1.572" 0.032" 6
7 0.000" 0.000" 0.000" 0.051" 0.000" 0.670" 2.332" 97.61 $ 28.84 $ 5.476" 1.221" 0.042" 7
8 0.000" 0.000" 0.000" 0.010" 0.000" 0.572" 2.426" 93.17 $ 24.27 $ 3.940" 1.029" 0.088" 8
9 0.000" 0.000" 0.000" 0.000" 0.000" 0.629" 2.751" 148.0 $ 19.69 " 3.041" 0.962" 0.038" 9
10 0.000" 0.000" 0.000" 0.000" 0.000" 3.391" 19.17 $ 145.1 $ 15.84 " 2.606" 0.929" 0.050" 10
11 0.000" 0.000" 0.000" 0.000" 0.000" 17.25 " 11.80 " 73.61 $ 12.90 " 2.416" 1.203" 0.032" 11
12 0.000" 0.000" 0.000" 0.003" 0.285" 12.34 " 7.176" 52.98 $ 10.77 " 2.159" 1.553" 0.017" 12
13 0.000" 0.000" 0.000" 0.000" 2.466" 13.90 " 5.322" 45.08 $ 20.96 $ 1.886" 1.462" 0.036" 13
14 0.000" 0.000" 0.000" 0.000" 0.920" 21.98 $ 5.060" 73.03 $ 33.61 $ 1.725" 1.300" 0.052" 14
15 0.000" 0.000" 0.000" 0.000" 0.394" 10.93 " 14.41 " 40.29 $ 18.24 " 1.532" 0.936" 0.051" 15
16 0.000" 0.000" 0.000" 0.000" 0.237" 8.363" 12.52 " 84.67 $ 14.37 " 1.307" 0.685" 0.038" 16
17 0.000" 0.000" 0.000" 0.000" 0.168" 7.104" 8.018" 155.5 $ 10.94 " 1.089" 0.469" 0.026" 17
18 0.000" 0.000" 0.000" 0.000" 0.151" 11.95 " 63.72 $ 93.93 $ 9.258" 0.879" 0.447" 0.014" 18
19 0.000" 0.000" 0.000" 0.000" 0.117" 15.59 " 39.50 $ 48.00 $ 17.21 $ 0.718" 0.469" 0.007" 19
20 0.000" 0.000" 0.000" 0.000" 0.116" 9.466" 21.51 $ 36.56 $ 22.13 $ 0.580" 0.559" 0.001" 20
21 0.000" 0.000" 0.000" 0.000" 0.136" 7.408" 60.79 $ 30.52 $ 13.41 " 0.513" 0.397" 0.000" 21
22 0.000" 0.000" 0.000" 0.000" 0.195" 6.715" 46.84 $ 28.10 $ 12.98 " 0.477" 0.300" 0.000" 22
23 0.000" 0.000" 0.000" 0.000" 7.369" 6.299" 49.21 $ 22.23 $ 10.46 " 0.485" 0.271" 0.000" 23
24 0.000" 0.000" 0.000" 0.000" 14.42 " 5.996" 101.9 $ 19.00 " 8.667" 4.063" 0.229" 0.000" 24
25 0.000" 0.000" 0.000" 0.000" 13.57 " 5.827" 36.61 $ 17.18 " 7.621" 10.36 " 0.183" 0.000" 25
26 0.000" 0.000" 0.000" 0.000" 5.879" 4.666" 39.19 $ 15.27 " 6.488" 5.544" 0.131" 0.000" 26
27 0.000" 0.000" 0.000" 0.000" 3.345" 3.935" 47.49 $ 14.56 " 5.655" 3.233" 0.089" 0.000" 27
28 0.000" 0.000" 0.000" 0.000" 2.341" 3.736" 29.10 $ 15.41 " 5.071" 2.191" 0.057" 0.000" 28
29 0.000" 0.000" 0.000" 1.810" 3.892" 30.67 $ 13.47 " 4.316" 4.070" 0.036" 0.000" 29
30 0.000" 0.000" 0.000" 1.509" 3.652" 31.10 $ 11.79 " 3.549" 19.46 $ 0.035" 0.000" 30
31 0.000" 0.000" 1.303" 23.31 $ 10.48 " 17.92 $ 0.000" 31
Mean 0.000" 0.000" 0.000" 0.054" 1.830" 6.392$ 23.45 $ 65.80 $ 19.09 $ 4.220$ 1.344" 0.021"
Median 0.000" 0.000" 0.000" 0.000" 0.168" 5.246$ 14.41 $ 46.11 $ 11.92 $ 2.968$ 0.807" 0.016"
Maximum 0.000" 0.000" 0.000" 0.738" 14.42 " 21.98 $ 101.9 $ 227.0 $ 151.9 $ 19.46 $ 8.625" 0.088"
Minimum 0.000" 0.000" 0.000" 0.000" 0.000" 0.572$ 2.134$ 10.48 $ 3.549$ 0.477$ 0.035" 0.000"
Total 0.000" 0.000" 0.000" 1.619" 56.73 " 191.8 $ 726.9 $2040 $ 572.8 $ 130.8 $ 40.31 " 0.644"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 10.31 $ " ... Relative Uncertainty +/-10%
Ann. Median 0.477$ $ ... Relative Uncertainty +/-20%
Annual Total 3761 $
Maximum Minimum
Daily 227.0 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2023
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.000" 0.000" 0.000" 0.000" 15.84 $ 7.444" 10.93 " 5.753" 1.120" 0.016" 0.000" 1
2 0.000" 0.000" 0.000" 0.000" 0.000" 13.99 $ 6.236" 13.65 $ 7.611" 1.406" 0.018" 0.000" 2
3 0.000" 0.000" 0.000" 0.000" 0.000" 4.359" 6.649" 184.0 $ 23.10 $ 2.313" 0.031" 0.000" 3
4 0.000" 0.000" 0.000" 0.000" 0.000" 2.989" 28.09 $ 61.93 $ 19.90 $ 2.834" 0.030" 0.000" 4
5 0.000" 0.000" 0.000" 0.000" 0.000" 23.47 $ 22.68 $ 35.56 $ 13.33 " 2.200" 0.030" 0.000" 5
6 0.000" 0.000" 0.000" 0.000" 0.000" 37.75 $ 20.16 " 27.40 $ 13.34 " 1.682" 0.020" 0.000" 6
7 0.000" 0.000" 0.000" 0.000" 0.000" 15.64 " 15.06 " 23.07 $ 12.52 " 1.325" 0.015" 0.000" 7
8 0.000" 0.000" 0.000" 0.000" 0.000" 9.888" 11.80 " 76.18 $ 8.724" 0.973" 0.003" 0.000" 8
9 0.000" 0.000" 0.000" 0.000" 0.000" 7.117" 9.755" 96.59 $ 6.759" 0.721" 0.000" 0.000" 9
10 0.000" 0.000" 0.000" 0.000" 0.000" 5.916" 8.667" 42.18 $ 5.505" 0.484" 0.000" 0.000" 10
11 0.000" 0.000" 0.000" 0.000" 0.000" 6.652" 7.550" 45.63 $ 4.716" 0.351" 0.000" 0.000" 11
12 0.000" 0.000" 0.000" 0.000" 0.000" 7.423" 6.936" 31.63 $ 4.257" 0.249" 0.000" 0.000" 12
13 0.000" 0.000" 0.000" 0.000" 0.000" 5.029" 7.109" 30.44 $ 22.06 $ 0.196" 0.000" 0.000" 13
14 0.000" 0.000" 0.000" 0.000" 0.000" 4.734" 6.891" 24.05 $ 48.41 $ 0.160" 0.000" 0.000" 14
15 0.000" 0.000" 0.000" 0.000" 0.000" 4.913" 6.101" 21.97 $ 17.68 " 0.124" 0.016" 0.000" 15
16 0.000" 0.000" 0.000" 0.000" 0.000" 4.342" 5.155" 71.31 $ 13.26 " 0.089" 0.015" 0.000" 16
17 0.000" 0.000" 0.000" 0.000" 0.000" 4.017" 4.545" 38.22 $ 14.55 " 0.061" 0.005" 0.000" 17
18 0.000" 0.000" 0.000" 0.000" 0.000" 4.703" 4.434" 25.69 $ 12.16 " 0.069" 0.000" 0.000" 18
19 0.000" 0.000" 0.000" 0.000" 0.000" 3.796" 34.22 $ 21.50 $ 8.799" 0.049" 0.000" 0.000" 19
20 0.000" 0.000" 0.000" 0.000" 0.000" 4.144" 35.18 $ 18.35 " 7.482" 0.065" 0.000" 0.000" 20
21 0.000" 0.000" 0.000" 0.000" 0.000" 11.36 " 18.04 " 16.35 " 6.421" 0.057" 0.000" 0.000" 21
22 0.000" 0.000" 0.000" 0.000" 0.000" 9.332" 16.85 " 14.25 " 5.506" 0.050" 0.000" 0.000" 22
23 0.000" 0.000" 0.000" 0.000" 0.000" 16.36 $ 12.25 " 12.70 " 4.714" 0.062" 0.000" 0.000" 23
24 0.000" 0.000" 0.000" 0.000" 0.000" 17.87 " 9.710" 11.75 " 4.080" 0.052" 0.000" 0.000" 24
25 0.000" 0.000" 0.000" 0.000" 0.000" 25.02 $ 8.281" 10.58 " 3.555" 0.025" 0.000" 0.000" 25
26 0.000" 0.000" 0.000" 0.000" 0.000" 24.45 $ 14.75 $ 9.294" 2.921" 0.007" 0.000" 0.000" 26
27 0.000" 0.000" 0.000" 0.000" 0.000" 14.91 " 34.66 $ 8.432" 2.417" 0.013" 0.000" 0.000" 27
28 0.000" 0.000" 0.000" 0.000" 0.000" 11.42 " 23.27 $ 8.152" 2.030" 0.014" 0.000" 0.000" 28
29 0.000" 0.000" 0.000" 0.000" 11.60 " 17.85 " 7.641" 1.666" 0.013" 0.000" 0.000" 29
30 0.000" 0.000" 0.000" 0.000" 9.398" 14.25 " 6.820" 1.372" 0.021" 0.000" 0.000" 30
31 0.000" 0.000" 0.000" 12.33 " 6.023" 0.027" 0.000" 31
Mean 0.000" 0.000" 0.000" 0.000" 0.000" 11.28 $ 14.09 $ 32.66 $ 10.15 $ 0.542" 0.007" 0.000"
Median 0.000" 0.000" 0.000" 0.000" 0.000" 9.365$ 11.80 $ 21.97 $ 7.121$ 0.089" 0.000" 0.000"
Maximum 0.000" 0.000" 0.000" 0.000" 0.000" 37.75 $ 35.18 $ 184.0 $ 48.41 $ 2.834" 0.031" 0.000"
Minimum 0.000" 0.000" 0.000" 0.000" 0.000" 2.989$ 4.434$ 6.023$ 1.372$ 0.007" 0.000" 0.000"
Total 0.000" 0.000" 0.000" 0.000" 0.000" 338.4 $ 436.9 $1012 $ 304.6 $ 16.81 " 0.200" 0.000"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.779$ " ... Relative Uncertainty +/-10%
Ann. Median 0.000$ $ ... Relative Uncertainty +/-20%
Annual Total 2109 $
Maximum Minimum
Daily 184.0 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2024
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.000" 0.000" 0.000" 0.000" 0.000" 1.682" 66.49 $ 12.17 " 0.952" 0.076" 0.026" 1
2 0.000" 0.000" 0.000" 0.000" 0.000" 0.000" 1.174" 27.46 $ 10.93 " 0.947" 0.044" 0.007" 2
3 0.000" 0.000" 0.000" 0.000" 0.000" 0.000" 1.115" 16.84 " 9.588" 1.575" 0.027" 0.003" 3
4 0.000" 0.000" 0.000" 0.000" 0.000" 0.000" 1.081" 12.84 " 8.950" 1.789" 0.018" 0.002" 4
5 0.000" 0.000" 0.000" 0.000" 0.000" 0.000" 1.025" 10.41 " 9.521" 2.038" 0.011" 0.001" 5
6 0.000" 0.000" 0.000" 0.000" 0.000" 0.050" 0.745" 8.959" 11.60 " 1.620" 0.010" 0.000" 6
7 0.000" 0.000" 0.000" 0.000" 0.000" 4.693" 0.688" 12.47 " 9.568" 1.149" 0.008" 0.000" 7
8 0.000" 0.000" 0.000" 0.000" 0.000" 0.937" 0.862" 13.63 " 8.161" 0.851" 0.014" 0.000" 8
9 0.000" 0.000" 0.000" 0.000" 0.000" 0.471" 1.911" 8.384" 7.140" 0.604" 0.026" 0.000" 9
10 0.000" 0.000" 0.000" 0.000" 0.000" 1.553" 10.19 " 7.129" 6.452" 0.446" 0.026" 0.000" 10
11 0.000" 0.000" 0.000" 0.000" 0.000" 1.872" 6.834" 6.896" 5.474" 0.309" 0.017" 0.000" 11
12 0.000" 0.000" 0.000" 0.000" 0.000" 1.109" 3.710" 7.234" 4.656" 0.259" 0.012" 0.000" 12
13 0.000" 0.000" 0.000" 0.000" 0.000" 0.636" 2.579" 7.072" 3.995" 0.183" 0.009" 0.000" 13
14 0.000" 0.000" 0.000" 0.000" 0.000" 0.447" 1.936" 12.92 " 3.467" 0.138" 0.005" 0.000" 14
15 0.000" 0.000" 0.000" 0.000" 0.000" 0.286" 1.566" 13.90 " 2.984" 0.114" 0.001" 0.000" 15
16 0.000" 0.000" 0.000" 0.000" 0.000" 0.189" 1.213" 9.501" 2.530" 0.097" 0.000" 0.000" 16
17 0.000" 0.000" 0.000" 0.000" 0.000" 0.131" 1.052" 7.587" 2.196" 0.081" 0.000" 0.000" 17
18 0.000" 0.000" 0.000" 0.000" 0.000" 0.101" 4.688" 31.15 $ 1.900" 0.058" 0.000" 0.000" 18
19 0.000" 0.000" 0.000" 0.000" 0.000" 0.080" 8.933" 69.60 $ 1.626" 0.046" 0.005" 0.000" 19
20 0.000" 0.000" 0.000" 0.000" 0.000" 0.055" 5.384" 42.56 $ 1.465" 0.070" 0.252" 0.000" 20
21 0.000" 0.000" 0.000" 0.000" 0.000" 0.055" 4.219" 22.65 $ 1.346" 0.139" 0.181" 0.000" 21
22 0.000" 0.000" 0.000" 0.000" 0.000" 0.134" 5.304$ 49.72 $ 1.241" 0.080" 0.128" 0.000" 22
23 0.000" 0.000" 0.000" 0.000" 0.000" 0.158" 81.18 $ 91.66 $ 1.134" 0.176" 0.088" 0.000" 23
24 0.000" 0.000" 0.000" 0.000" 0.000" 0.231" 25.83 $ 82.92 $ 1.022" 0.121" 0.100" 0.000" 24
25 0.000" 0.000" 0.000" 0.000" 0.000" 0.173" 21.60 $ 54.18 $ 0.891" 0.091" 0.143" 0.000" 25
26 0.000" 0.000" 0.000" 0.000" 0.000" 0.127" 14.44 " 29.54 $ 0.751" 0.088" 0.084" 0.000" 26
27 0.000" 0.000" 0.000" 0.000" 0.000" 0.365" 10.13 " 29.12 $ 0.758" 0.047" 0.104" 0.000" 27
28 0.000" 0.000" 0.000" 0.000" 0.000" 1.133" 9.618" 25.91 $ 1.116" 0.034" 0.118" 0.000" 28
29 0.000" 0.000" 0.000" 0.000" 0.000" 1.913" 21.61 $ 25.35 $ 1.011" 0.030" 0.095" 0.000" 29
30 0.000" 0.000" 0.000" 0.000" 1.958" 14.95 " 24.36 $ 0.908" 0.040" 0.065" 0.000" 30
31 0.000" 0.000" 0.000" 18.41 $ 14.55 " 0.091" 0.000" 31
Mean 0.000" 0.000" 0.000" 0.000" 0.000" 0.629" 9.215$ 27.19 $ 4.485" 0.460" 0.056" 0.001"
Median 0.000" 0.000" 0.000" 0.000" 0.000" 0.181" 4.219$ 16.84 $ 2.757" 0.138" 0.026" 0.000"
Maximum 0.000" 0.000" 0.000" 0.000" 0.000" 4.693" 81.18 $ 91.66 $ 12.17 " 2.038" 0.252" 0.026"
Minimum 0.000" 0.000" 0.000" 0.000" 0.000" 0.000" 0.688$ 6.896$ 0.751" 0.030" 0.000" 0.000"
Total 0.000" 0.000" 0.000" 0.000" 0.000" 18.86 " 285.7 $ 843.0 $ 134.5 " 14.26 " 1.667" 0.039"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3.546$ " ... Relative Uncertainty +/-10%
Ann. Median 0.000$ $ ... Relative Uncertainty +/-20%
Annual Total 1298 $
Maximum Minimum
Daily 91.66 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2025
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.000" 0.000" 0.036" 0.052" 0.865" 2.274" 14.06 " 12.18 " 3.760" 0.194" 0.298" 1
2 0.000" 0.000" 0.000" 0.016" 0.047" 1.408" 2.756" 51.57 $ 11.18 " 3.286" 0.345" 0.185" 2
3 0.000" 0.000" 0.000" 0.002" 0.101" 1.745" 29.80 $ 100.7 $ 10.49 " 2.926" 0.779" 0.122" 3
4 0.000" 0.000" 0.000" 0.586" 0.086" 7.154$ 21.58 $ 82.91 $ 9.416" 3.124" 0.659" 0.128" 4
5 0.000" 0.000" 0.000" 0.928" 0.085" 16.20 " 12.59 " 43.08 $ 28.50 $ 8.902" 0.479" 0.147" 5
6 0.000" 0.000" 0.000" 1.092" 0.063" 7.000" 8.948" 33.92 $ 132.9 $ 6.572" 0.475" 0.150" 6
7 0.000" 0.000" 0.000" 1.483" 0.054" 3.675" 18.39 $ 24.58 $ 57.17 $ 4.198" 1.371" 0.048" 7
8 0.000" 0.000" 0.000" 1.347" 0.043" 2.549" 16.33 " 19.41 " 47.23 $ 3.382" 1.721" 0.029" 8
9 0.000" 0.000" 0.000" 1.065" 0.022" 1.910" 10.46 " 23.11 $ 50.60 $ 2.980" 1.056" 0.079" 9
10 0.000" 0.000" 0.000" 0.722" 0.015" 1.914" 7.727" 75.08 $ 30.32 $ 2.585" 0.553" 0.089" 10
11 0.000" 0.000" 0.000" 0.533" 0.010" 3.094" 6.123" 36.63 $ 21.92 $ 2.135" 0.300" 0.054" 11
12 0.000" 0.000" 0.000" 0.403" 0.008" 4.168" 6.707" 23.25 $ 17.14 " 1.773" 0.168" 0.043" 12
13 0.000" 0.000" 5.441$ 0.303" 0.010" 2.878" 11.59 " 17.92 " 17.72 $ 1.508" 0.094" 0.020" 13
14 0.000" 0.000" 83.37 $ 0.267" 0.011" 2.116" 9.218" 29.98 $ 69.68 $ 1.240" 0.050" 0.004" 14
15 0.000" 0.000" 13.87 $ 0.184" 0.011" 1.927" 7.023" 21.14 $ 88.76 $ 1.001" 0.029" 0.000" 15
16 0.000" 0.000" 4.468# 0.129" 0.012" 1.826" 7.081" 14.51 " 39.00 $ 0.786" 0.007" 0.000" 16
17 0.000" 0.000" 2.234$ 0.134" 0.011" 1.739" 9.269" 12.42 " 26.15 $ 0.621" 0.001" 0.000" 17
18 0.000" 0.000" 1.141$ 0.191" 0.006" 1.842" 7.178" 11.08 " 24.34 $ 0.476" 0.010" 0.000" 18
19 0.000" 0.000" 0.678" 0.133" 0.002" 2.119" 6.665" 89.64 $ 17.71 " 0.411" 0.139" 0.000" 19
20 0.000" 0.000" 0.399" 0.146" 0.000" 2.843" 8.001" 99.15 $ 15.53 " 0.367" 0.062" 0.000" 20
21 0.000" 0.000" 0.280^ 0.079" 0.000" 12.30 " 37.81 $ 44.32 $ 13.45 " 0.425" 0.048" 0.000" 21
22 0.000" 0.000" 0.245^ 0.040" 0.000" 14.07 " 18.68 $ 27.20 $ 11.74 " 0.525" 0.733" 0.000" 22
23 0.000" 0.000" 0.233^ 0.039" 0.017" 14.47 " 13.54 " 21.31 $ 9.761" 0.638" 21.07 $ 0.000" 23
24 0.000" 0.000" 0.204^ 0.070" 0.070" 10.44 " 38.01 $ 24.35 $ 8.171" 0.539" 9.958" 0.000" 24
25 0.000" 0.000" 0.171^ 0.121" 0.058" 6.007" 32.54 $ 63.88 $ 6.739" 0.433" 4.405" 0.000" 25
26 0.000" 0.000" 0.150^ 0.140" 0.072" 4.332" 17.46 " 54.48 $ 5.448" 0.314" 2.745" 0.000" 26
27 0.000" 0.000" 0.091" 0.146" 0.074" 3.482" 14.38 " 41.67 $ 4.537" 0.224" 1.859" 0.000" 27
28 0.000" 0.000" 0.052" 0.109" 0.050" 2.928" 32.33 $ 26.06 $ 4.031" 0.169" 1.233" 0.000" 28
29 0.000" 0.047" 0.070" 0.029" 2.575" 33.68 $ 21.12 $ 4.022" 0.126" 0.824" 0.000" 29
30 0.000" 0.048" 0.070" 0.109" 2.313" 28.78 $ 16.61 " 4.146" 0.094" 0.502" 0.000" 30
31 0.000" 0.042" 0.297" 19.03 $ 13.92 " 0.087" 0.000" 31
Mean 0.000" 0.000" 3.650^ 0.353" 0.046" 4.730$ 16.00 $ 38.03 $ 26.67 $ 1.794" 1.729$ 0.045"
Median 0.000" 0.000" 0.052^ 0.143" 0.029" 2.860$ 12.59 $ 26.06 $ 16.34 $ 0.786" 0.491$ 0.000"
Maximum 0.000" 0.000" 83.37 ^ 1.483" 0.297" 16.20 $ 38.01 $ 100.7 $ 132.9 $ 8.902" 21.07 $ 0.298"
Minimum 0.000" 0.000" 0.000^ 0.002" 0.000" 0.865$ 2.274$ 11.08 $ 4.022$ 0.087" 0.001$ 0.000"
Total 0.000" 0.000" 113.2 ^ 10.59 " 1.427" 141.9 $ 496.0 $1179 $ 800.0 $ 55.61 " 51.88 $ 1.396"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 7.811^ " ... Relative Uncertainty +/-10%
Ann. Median 0.314^ # ... Relative Uncertainty +/-15%
Annual Total 2851 ^ $ ... Relative Uncertainty +/-20%
^ ... Relative Uncertainty +/-50%
Maximum Minimum
Daily 132.9 ^ 0.000^
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 609005 Balgarup River - Mandelup Pool Year 2026
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000" 0.000" 0.000" 0.424" 0.168" 8.318" 53.43 $ 8.894" [ ] [ ] [ ] [ ] 1
2 0.000" 0.000" 0.000" 0.241" 0.169" 6.171" 42.39 $ 8.697" [ ] [ ] [ ] [ ] 2
3 0.000" 0.000" 0.000" 0.208" 0.192" 3.183" 27.61 $ 7.847" [ ] [ ] [ ] [ ] 3
4 0.000" 0.000" 0.000" 0.363" 0.086" 1.803" 21.04 $ 7.140" [ ] [ ] [ ] [ ] 4
5 0.000" 0.000" 0.000" 0.471" 0.094" 1.167" 16.35 " 6.475" [ ] [ ] [ ] [ ] 5
6 0.000" 0.000" 0.000" 0.438" 0.098" 0.841" 15.45 " 6.068" [ ] [ ] [ ] [ ] 6
7 0.000" 0.000" 0.000" 0.247" 0.121" 0.647" 14.08 " 6.059" [ ] [ ] [ ] [ ] 7
8 0.000" 0.000" 0.000" 0.240" 0.170" 15.31 $ 11.90 " [ ] [ ] [ ] [ ] [ ] 8
9 0.000" 0.000" 0.000" 0.190" 0.199" 51.11 $ 10.66 " [ ] [ ] [ ] [ ] [ ] 9
10 0.000" 0.000" 0.000" 0.042" 0.119" 11.80 " 9.828" [ ] [ ] [ ] [ ] [ ] 10
11 0.000" 0.000" 0.000" 0.034" 0.049" 7.221" 9.255" [ ] [ ] [ ] [ ] [ ] 11
12 0.000" 0.000" 0.000" 0.049" 0.049" 10.26 " 8.325" [ ] [ ] [ ] [ ] [ ] 12
13 0.000" 0.000" 0.000" 0.056" 0.048" 8.941" 7.459" [ ] [ ] [ ] [ ] [ ] 13
14 0.000" 0.000" 0.000" 0.058" 0.062" 6.031" 6.562" [ ] [ ] [ ] [ ] [ ] 14
15 0.000" 0.000" 0.000" 0.073" 0.090" 9.191" 5.738" [ ] [ ] [ ] [ ] [ ] 15
16 0.000" 0.000" 0.000" 0.087" 0.113" 12.26 " 15.14 $ [ ] [ ] [ ] [ ] [ ] 16
17 0.000" 0.000" 0.000" 0.108" 0.107" 9.235" 155.5 $ [ ] [ ] [ ] [ ] [ ] 17
18 0.000" 0.000" 0.000" 0.150" 0.129" 7.423" 114.5 $ [ ] [ ] [ ] [ ] [ ] 18
19 0.000" 0.000" 0.000" 0.127" 0.113" 5.683" 49.27 $ [ ] [ ] [ ] [ ] [ ] 19
20 0.000" 0.000" 0.000" 0.047" 0.060" 4.420" 32.44 $ [ ] [ ] [ ] [ ] [ ] 20
21 0.000" 0.000" 0.000" 0.054" 0.046" 3.977" 24.70 $ [ ] [ ] [ ] [ ] [ ] 21
22 0.000" 0.000" 0.000" 0.060" 0.067" 5.448" 20.02 " [ ] [ ] [ ] [ ] [ ] 22
23 0.000" 0.000" 0.000" 0.082" 0.105" 5.882" 17.42 " [ ] [ ] [ ] [ ] [ ] 23
24 0.000" 0.000" 0.000" 0.096" 0.117" 4.998" 15.47 " [ ] [ ] [ ] [ ] [ ] 24
25 0.000" 0.000" 0.000" 0.091" 0.059" 3.969" 13.37 " [ ] [ ] [ ] [ ] [ ] 25
26 0.000" 0.000" 0.000" 0.091" 0.042" 5.140" 15.11 " [ ] [ ] [ ] [ ] [ ] 26
27 0.000" 0.000" 0.000" 0.180" 0.041" 51.45 $ 19.51 " [ ] [ ] [ ] [ ] [ ] 27
28 0.000" 0.000" 0.000" 0.265" 0.293" 49.87 $ 14.19 " [ ] [ ] [ ] [ ] [ ] 28
29 0.000" 0.760" 0.231" 0.214" 23.99 $ 11.82 " [ ] [ ] [ ] [ ] [ ] 29
30 0.000" 0.953" 0.220" 0.212" 50.32 $ 10.27 " [ ] [ ] [ ] [ ] [ ] 30
31 0.000" 0.587" 6.938" 9.190" [ ] [ ] [ ] 31
Mean 0.000" 0.000" 0.074" 0.167" 0.335" 12.87 $ 25.74 $ 7.311" [ ] [ ] [ ] [ ]
Median 0.000" 0.000" 0.000" 0.118" 0.107" 6.696$ 15.14 $ 7.140" [ ] [ ] [ ] [ ]
Maximum 0.000" 0.000" 0.953" 0.471" 6.938" 51.45 $ 155.5 $ 8.894" [ ] [ ] [ ] [ ]
Minimum 0.000" 0.000" 0.000" 0.034" 0.041" 0.647$ 5.738$ 6.059" [ ] [ ] [ ] [ ]
Total 0.000" 0.000" 2.300" 5.024" 10.37 " 386.1 $ 798.0 $ 51.18 " [ ] [ ] [ ] [ ]
Missing Days 0 0 0 0 0 0 0 24 30 31 30 31
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.721$ " ... Relative Uncertainty +/-10%
Ann. Median 0.090$ $ ... Relative Uncertainty +/-20%
Annual Total 1253 $ [ ... Not Available
Missing Days 146
Maximum Minimum
Daily 155.5 $ 0.000$