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Department of Water and Environmental Regulation HYDAY V146 Output 13/08/2026
Site 611226 Preston River - Donnybrook Dawson Rd 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 [ ] [ ] [ ] [ ] [ ] 4.926$ 73.77 $ 33.21 $1175 " 31.77 $ 17.15 $ 3.709$ 1
2 [ ] [ ] [ ] [ ] [ ] 4.738$ 67.77 $ 30.28 $1583 " 31.75 $ 18.05 $ 4.411$ 2
3 [ ] [ ] [ ] [ ] [ ] 4.532$ 56.29 $ 29.37 $1647 " 28.02 $ 17.71 $ 4.775$ 3
4 [ ] [ ] [ ] [ ] [ ] 4.318$ 66.04 $ 33.08 $1189 " 28.18 $ 16.28 $ 3.694$ 4
5 [ ] [ ] [ ] [ ] [ ] 4.216$ 140.2 " 37.86 $ 759.2 " 37.44 $ 14.69 $ 3.913$ 5
6 [ ] [ ] [ ] [ ] [ ] 3.990$ 161.3 " 35.94 $ 510.7 " 43.90 $ 13.38 $ 4.342$ 6
7 [ ] [ ] [ ] [ ] [ ] 5.038$ 150.8 " 38.20 $ 374.0 " 35.95 $ 11.97 $ 4.688$ 7
8 [ ] [ ] [ ] [ ] [ ] 6.384$ 138.1 " 33.25 $ 292.7 " 30.44 $ 10.77 $ 5.104$ 8
9 [ ] [ ] [ ] [ ] [ ] 11.70 $ 127.6 " 29.77 $ 239.7 " 27.28 $ 9.007$ 4.523$ 9
10 [ ] [ ] [ ] [ ] [ ] 11.89 $ 109.1 " 28.46 $ 197.3 " 24.72 $ 8.296$ 6.364$ 10
11 [ ] [ ] [ ] [ ] [ ] 13.63 $ 92.68 $ 26.77 $ 161.9 " 23.21 $ 7.807$ 7.729$ 11
12 [ ] [ ] [ ] [ ] [ ] 12.46 $ 82.74 $ 25.19 $ 145.9 " 21.56 $ 6.693$ 6.216$ 12
13 [ ] [ ] [ ] [ ] [ ] 12.04 $ 72.05 $ 24.27 $ 131.2 " 20.00 $ 5.798$ 5.819$ 13
14 [ ] [ ] [ ] [ ] [ ] 10.46 $ 65.41 $ 32.82 $ 120.2 " 19.93 $ 5.701$ 5.460$ 14
15 [ ] [ ] [ ] [ ] [ ] 8.849$ 59.97 $ 53.80 $ 112.8 " 18.91 $ 5.120$ 4.702$ 15
16 [ ] [ ] [ ] [ ] [ ] 7.740$ 48.80 $ 54.89 $ 101.7 " 18.03 $ 4.421$ 4.795$ 16
17 [ ] [ ] [ ] [ ] [ ] 7.017$ 42.79 $ 126.8 $ 81.92 $ 16.89 $ 3.773$ 4.140$ 17
18 [ ] [ ] [ ] [ ] [ ] 6.376$ 41.21 $ 142.9 " 74.70 $ 16.02 $ 3.324$ 3.685$ 18
19 [ ] [ ] [ ] [ ] [ ] 5.798$ 45.11 $ 109.1 " 92.45 $ 15.47 $ 3.511$ 3.803$ 19
20 [ ] [ ] [ ] [ ] [ ] 5.648$ 87.71 $ 85.43 $ 94.74 $ 14.59 $ 3.375$ 4.458$ 20
21 [ ] [ ] [ ] [ ] [ ] 5.659$ 105.6 " 71.28 $ 82.58 $ 13.91 $ 2.914$ 4.655$ 21
22 [ ] [ ] [ ] [ ] [ ] 6.498$ 96.51 " 62.73 $ 76.08 $ 13.17 $ 2.865$ 4.720$ 22
23 [ ] [ ] [ ] [ ] [ ] 20.60 $ 86.76 $ 64.63 $ 66.65 $ 12.39 $ 2.884$ 4.616$ 23
24 [ ] [ ] [ ] [ ] [ ] 43.14 $ 73.27 $ 73.66 $ 60.24 $ 12.02 $ 2.275& 5.121$ 24
25 [ ] [ ] [ ] [ ] [ ] 59.90 $ 65.51 $ 70.58 $ 53.14 $ 11.38 $ 2.089$ 6.480$ 25
26 [ ] [ ] [ ] [ ] [ ] 52.20 $ 60.05 $ 62.74 $ 47.63 $ 11.22 $ 2.472$ 7.678$ 26
27 [ ] [ ] [ ] [ ] [ ] 85.24 $ 54.79 $ 51.51 $ 43.79 $ 10.86 $ 2.665$ 8.583$ 27
28 [ ] [ ] [ ] [ ] [ ] 90.03 $ 49.11 $ 44.86 $ 39.58 $ 9.792$ 3.394$ 7.341$ 28
29 [ ] [ ] [ ] 5.542$ 79.69 $ 44.55 $ 51.90 $ 35.47 $ 9.527$ 3.831$ 6.809$ 29
30 [ ] [ ] [ ] 5.051$ 74.71 $ 40.79 $ 283.6 " 32.19 $ 10.03 $ 3.803$ 6.914$ 30
31 [ ] [ ] 4.784$ 36.63 $ 857.6 " 14.65 $ 8.383$ 31
Mean [ ] [ ] [ ] [ ] 5.126$ 22.31 $ 78.80 $ 87.30 $ 320.8 $ 20.42 $ 7.200& 5.407$
Median [ ] [ ] [ ] [ ] 5.051$ 8.295$ 67.77 $ 51.51 $ 107.3 $ 18.03 $ 4.771& 4.775$
Maximum [ ] [ ] [ ] [ ] 5.542$ 90.03 $ 161.3 $ 857.6 $1647 $ 43.90 $ 18.05 & 8.583$
Minimum [ ] [ ] [ ] [ ] 4.784$ 3.990$ 36.63 $ 24.27 $ 32.19 $ 9.527$ 2.089& 3.685$
Total [ ] [ ] [ ] [ ] 15.38 $ 669.4 $2443 $2706 $9623 $ 633.0 $ 216.0 & 167.6 $
Missing Days 31 28 31 30 28 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 75.92 & " ... Relative Uncertainty +/-10%
Ann. Median 24.27 & $ ... Relative Uncertainty +/-20%
Annual Total 16474 & & ... Relative Uncertainty +/-30%
Missing Days 148 [ ... Not Available
Maximum Minimum
Daily 1647 & 2.089&
Department of Water and Environmental Regulation HYDAY V146 Output 13/08/2026
Site 611226 Preston River - Donnybrook Dawson Rd 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 9.067$ 4.173$ 7.247$ 3.650$ 1.887$ 8.531$ 307.5 " 311.4 " 123.5 " 116.7 " 13.95 $ 7.426$ 1
2 9.107$ 3.993$ 6.009$ 3.959$ 1.922$ 7.754$ 227.5 " 283.8 " 213.4 " 118.8 " 16.31 $ 7.047$ 2
3 8.105$ 4.022$ 4.572$ 3.800$ 1.787$ 6.382$ 171.7 " 305.6 " 252.1 " 111.9 " 21.67 $ 6.852$ 3
4 8.078$ 5.219$ 6.021$ 3.457$ 2.335$ 5.378$ 140.0 " 294.1 " 211.8 " 96.39 " 20.62 $ 5.345$ 4
5 6.721$ 4.914$ 4.713$ 4.061$ 2.577$ 4.864$ 123.0 " 270.9 " 191.7 " 83.48 $ 18.54 $ 5.784$ 5
6 6.751$ 5.053$ 3.398$ 4.258$ 4.164$ 4.451$ 213.6 " 244.7 " 351.4 " 72.83 $ 16.46 $ 5.298$ 6
7 6.113$ 4.971$ 3.847$ 3.836$ 4.320$ 4.305$ 618.6 " 218.4 "2033 # 71.25 $ 15.01 $ 5.115$ 7
8 6.857$ 4.397$ 4.153$ 3.502$ 4.756$ 3.930$ 534.1 " 203.9 "2025 # 211.0 " 13.92 $ 4.114$ 8
9 7.506$ 4.157$ 3.324$ 3.435$ 4.601$ 3.689$ 381.0 " 232.2 "1139 " 199.9 " 15.33 $ 3.475$ 9
10 6.535$ 3.798$ 3.202$ 3.388$ 4.683$ 3.935$ 284.9 " 534.4 "1163 " 146.6 " 28.23 $ 4.169$ 10
11 6.006$ 4.270$ 3.471$ 3.275$ 4.405$ 6.410$ 223.2 " 709.0 "1167 " 116.0 " 35.58 $ 3.438$ 11
12 5.173$ 4.362$ 3.533$ 3.010$ 3.778$ 9.468$ 185.0 " 588.8 " 812.2 " 95.35 $ 28.76 $ 3.202$ 12
13 4.590$ 5.447$ 3.967$ 2.598$ 3.672$ 7.949$ 229.6 " 449.5 " 579.4 " 80.58 $ 26.44 $ 3.076$ 13
14 5.366$ 5.673$ 3.615$ 2.258$ 3.458$ 8.125$ 412.5 " 365.9 " 449.1 " 71.12 $ 27.03 $ 3.272$ 14
15 5.337$ 5.318$ 5.094$ 2.114$ 3.262$ 7.106$ 635.9 " 317.9 " 373.5 " 62.65 $ 33.24 $ 3.665$ 15
16 5.835$ 6.074$ 6.248$ 1.952$ 3.130$ 5.704$ 732.8 " 459.4 " 318.7 " 53.65 $ 35.61 $ 2.597$ 16
17 4.967$ 6.358$ 6.789$ 1.861$ 2.956$ 6.176$1541 " 564.2 " 275.7 " 45.80 $ 30.14 $ 3.481$ 17
18 4.421$ 6.153$ 7.616$ 1.797$ 2.763$ 8.824$1336 " 485.3 " 232.2 " 39.91 $ 26.18 $ 4.855$ 18
19 5.199$ 5.991$ 6.535$ 2.100$ 2.607$ 8.898$ 870.3 " 391.2 " 222.1 " 33.88 $ 23.71 $ 4.109$ 19
20 4.882$ 6.252$ 5.471$ 2.146$ 2.533$ 10.92 $ 603.8 " 321.3 " 254.8 " 29.31 $ 21.40 $ 4.567$ 20
21 5.335$ 5.888$ 5.220$ 2.631$ 2.379$ 9.482$ 440.0 " 278.3 " 231.4 " 25.56 $ 20.18 $ 4.502$ 21
22 5.912$ 7.071$ 4.699$ 2.930$ 2.335$ 9.123$ 351.3 " 244.7 " 205.5 " 22.96 $ 18.38 $ 3.205$ 22
23 6.192$ 6.845$ 4.555$ 3.088$ 2.314$ 76.50 $ 352.1 " 217.9 " 179.5 & 20.84 $ 16.40 $ 4.026$ 23
24 5.862$ 6.679$ 3.874$ 3.267$ 2.678$ 153.1 " 343.6 " 198.2 " 158.7 & 19.22 $ 14.47 $ 3.507$ 24
25 5.397$ 8.174$ 3.102$ 3.367$ 3.359$ 100.7 $ 279.8 " 178.4 " 136.2 " 17.98 $ 12.78 $ 2.876$ 25
26 5.018$ 8.512$ 3.664$ 3.153$ 3.584$ 76.35 $ 266.6 " 160.5 " 121.7 " 16.64 $ 11.06 $ 3.073$ 26
27 4.872$ 8.592$ 3.541$ 2.814$ 4.080$ 85.17 $ 287.3 " 142.6 " 126.5 & 15.79 $ 9.666$ 2.197$ 27
28 4.939$ 8.343$ 3.448$ 2.380$ 4.899$ 127.7 " 643.7 " 129.5 " 125.8 & 15.37 $ 9.815$ 2.537$ 28
29 4.892$ 7.566$ 3.674$ 2.114$ 7.425$ 272.9 " 641.6 " 119.0 " 127.8 & 14.20 $ 7.108$ 2.717$ 29
30 4.920$ 3.260$ 1.864$ 7.862$ 347.5 " 467.7 " 107.3 " 120.1 " 13.54 $ 7.751$ 1.913$ 30
31 4.986$ 3.198$ 7.108$ 367.4 " 100.7 " 12.78 $ 2.686$ 31
Mean 5.966$ 5.802$ 4.550$ 2.935$ 3.665$ 46.37 $ 458.5 " 304.2 " 464.1 & 66.19 $ 19.86 $ 4.004$
Median 5.397$ 5.673$ 3.967$ 3.049$ 3.359$ 8.328$ 352.1 " 278.3 " 231.8 & 53.65 $ 18.46 $ 3.507$
Maximum 9.107$ 8.592$ 7.616$ 4.258$ 7.862$ 347.5 $1541 " 709.0 "2033 & 211.0 $ 35.61 $ 7.426$
Minimum 4.421$ 3.798$ 3.102$ 1.797$ 1.787$ 3.689$ 123.0 " 100.7 " 120.1 & 12.78 $ 7.108$ 1.913$
Total 184.9 $ 168.3 $ 141.1 $ 88.06$ 113.6 $ 1391 $14212 " 9429 "13922 & 2052 $ 595.7 $ 124.1 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 115.9 & " ... Relative Uncertainty +/-10%
Ann. Median 7.425& # ... Relative Uncertainty +/-15%
Annual Total 42422 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 2033 & 1.787&
Department of Water and Environmental Regulation HYDAY V146 Output 13/08/2026
Site 611226 Preston River - Donnybrook Dawson Rd 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 2.439$ 6.519$ 6.200$ 6.413$ 6.226$ 85.59 $ 196.4 "1878 " 241.7 " 261.3 " 112.6 " 8.748$ 1
2 3.207$ 6.766$ 6.793$ 5.721$ 5.904$ 66.59 $ 180.6 "2072 " 309.7 " 387.6 " 102.2 " 8.660$ 2
3 2.630$ 6.147$ 7.454$ 5.178$ 6.215$ 51.85 $ 161.0 "1404 " 317.9 " 321.4 " 91.94 $ 8.614$ 3
4 4.201$ 5.192$ 10.51 $ 5.417$ 5.686$ 41.25 $ 150.9 " 967.2 " 295.5 " 277.3 " 81.98 $ 8.062$ 4
5 5.972$ 6.310$ 12.28 $ 4.945$ 22.08 $ 34.88 $ 260.2 " 739.2 " 254.0 " 251.4 " 73.85 $ 7.224$ 5
6 6.427$ 6.506$ 12.07 $ 4.879$ 16.36 $ 32.98 $ 517.1 " 596.5 " 219.0 " 226.7 " 63.04 $ 6.830$ 6
7 6.367$ 10.89 $ 10.75 $ 4.992$ 13.05 $ 33.78 $ 976.1 " 500.4 " 192.3 " 196.4 " 56.55 $ 7.260$ 7
8 6.400$ 13.38 $ 9.585$ 5.102$ 11.87 $ 33.09 $ 936.6 " 576.3 " 170.9 " 182.6 " 51.24 $ 6.652$ 8
9 5.847$ 13.99 $ 9.499$ 5.191$ 10.50 $ 31.58 $ 848.4 " 982.8 " 225.3 " 166.3 " 44.74 $ 6.202$ 9
10 5.752$ 12.40 $ 8.452$ 5.475$ 8.756$ 50.15 $1713 "1623 " 460.2 " 145.4 " 38.29 $ 5.337$ 10
11 5.037$ 11.82 $ 8.387$ 6.857$ 7.372$ 115.1 $1511 "1854 " 477.6 " 139.1 " 35.84 $ 4.782$ 11
12 4.776$ 10.15 $ 7.908$ 14.01 $ 6.304$ 112.8 " 956.9 "1381 " 361.5 " 160.4 " 30.93 $ 4.591$ 12
13 4.931$ 9.569$ 6.733$ 16.87 $ 5.728$ 92.17 $1545 # 988.0 " 288.4 " 148.8 " 26.58 $ 5.109$ 13
14 4.955$ 8.852$ 6.302$ 15.03 $ 5.417$ 85.44 $2297 # 759.1 " 239.2 " 134.8 " 21.69 $ 4.509$ 14
15 4.696$ 8.881$ 5.973$ 11.14 $ 5.080$ 81.02 $1561 " 610.7 " 215.3 " 127.0 " 19.92 $ 4.534$ 15
16 4.262$ 8.553$ 5.701$ 9.243$ 5.019$ 73.72 $1074 " 512.5 " 400.8 " 116.3 " 17.82 $ 4.239$ 16
17 4.637$ 7.989$ 5.999$ 8.005$ 5.141$ 65.98 $ 795.0 " 441.7 " 568.6 " 98.97 " 17.36 $ 5.019$ 17
18 4.800$ 8.753$ 5.583$ 7.376$ 8.662$ 59.12 $ 627.3 " 386.3 " 529.6 " 88.66 $ 17.85 $ 4.447$ 18
19 4.127$ 7.759$ 5.195$ 7.002$ 10.86 $ 52.70 $ 519.6 " 415.4 " 573.9 " 106.1 $ 17.04 $ 4.934$ 19
20 7.764$ 7.583$ 5.476$ 7.312$ 9.025$ 74.12 $ 444.8 " 478.5 " 511.2 " 400.2 " 16.47 $ 5.485$ 20
21 8.335$ 6.977$ 5.439$ 6.975$ 8.282$ 143.5 " 444.0 " 444.9 " 418.6 " 581.4 " 15.48 $ 6.660$ 21
22 8.882$ 6.617$ 5.167$ 7.180$ 8.141$ 156.6 " 451.3 " 381.2 " 329.6 " 505.1 " 18.78 $ 6.593$ 22
23 8.476$ 6.149$ 5.612$ 6.175$ 12.91 $ 132.8 " 408.0 " 331.7 " 274.7 " 352.7 " 25.98 $ 6.438$ 23
24 8.555$ 5.997$ 5.234$ 5.503$ 17.05 $ 112.6 " 371.9 " 290.2 " 234.2 " 257.4 " 21.61 $ 5.143$ 24
25 8.330$ 6.192$ 5.585$ 4.879$ 18.50 $ 98.75 " 333.6 " 259.7 " 204.6 " 205.2 " 18.33 $ 6.169$ 25
26 9.052$ 5.566$ 5.748$ 4.588$ 18.35 $ 89.54 $ 306.2 " 243.0 " 189.8 " 178.8 " 15.81 $ 5.866$ 26
27 9.433$ 6.614$ 5.572$ 4.152$ 17.21 $ 91.86 $ 458.8 " 241.0 " 183.7 " 205.2 " 13.85 $ 5.106$ 27
28 8.547$ 6.357$ 6.251$ 4.235$ 15.54 $ 138.7 " 667.1 " 224.5 " 188.4 " 220.7 " 12.05 $ 4.706$ 28
29 8.224$ 6.227$ 4.321$ 23.20 $ 192.9 " 771.1 " 212.8 " 182.2 " 185.0 " 9.770$ 4.755$ 29
30 7.120$ 5.831$ 6.075$ 49.29 $ 215.7 "1319 " 214.7 " 184.2 " 157.1 " 8.013$ 4.003$ 30
31 7.207$ 6.191$ 90.80 $ 1754 " 213.4 " 133.9 " 2.936$ 31
Mean 6.174$ 8.160$ 7.087$ 7.008$ 14.66 $ 88.23 $ 792.2 # 716.9 " 308.1 " 223.2 $ 36.59 $ 5.794$
Median 5.972$ 7.280$ 6.200$ 5.898$ 9.025$ 83.23 $ 627.3 # 500.4 " 264.3 " 185.0 $ 21.65 $ 5.337$
Maximum 9.433$ 13.99 $ 12.28 $ 16.87 $ 90.80 $ 215.7 $2297 #2072 " 573.9 " 581.4 $ 112.6 $ 8.748$
Minimum 2.439$ 5.192$ 5.167$ 4.152$ 5.019$ 31.58 $ 150.9 # 212.8 " 170.9 " 88.66 $ 8.013$ 2.936$
Total 191.4 $ 228.5 $ 219.7 $ 210.2 $ 454.5 $ 2647 $24558 #22223 " 9242 " 6919 $ 1098 $ 179.6 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 186.8 $ " ... Relative Uncertainty +/-10%
Ann. Median 17.05 $ # ... Relative Uncertainty +/-15%
Annual Total 68171 $ $ ... Relative Uncertainty +/-20%
Maximum Minimum
Daily 2297 $ 2.439$
Department of Water and Environmental Regulation HYDAY V146 Output 13/08/2026
Site 611226 Preston River - Donnybrook Dawson Rd 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 2.700$ 2.183$ 3.316$ 2.624$ 1.172& 3.482$ 14.56 $ 639.0 " 121.0 " 56.40 $ 15.95 $ 3.673$ 1
2 2.808$ 2.334$ 3.604$ 2.752$ 1.045& 3.558$ 13.86 $ 795.6 " 111.4 " 49.84 $ 15.96 $ 2.590$ 2
3 3.462$ 2.460$ 3.002$ 2.599$ 1.473& 3.578$ 13.46 $1205 " 104.9 " 47.13 $ 15.69 $ 2.570$ 3
4 3.172$ 3.374$ 3.398$ 1.986$ 1.239& 3.488$ 13.28 $1153 " 98.70 " 44.21 $ 14.07 $ 2.391$ 4
5 3.360$ 2.480& 3.769$ 1.631& 1.345& 3.308$ 13.71 $ 846.8 " 99.67 " 41.67 $ 12.90 $ 2.652$ 5
6 3.297$ 1.537& 4.165$ 1.827$ 1.219& 3.205$ 13.87 $ 619.6 " 101.8 " 45.99 $ 11.73 $ 3.094$ 6
7 3.052$ 1.998$ 3.467$ 1.577& 0.903& 3.268$ 13.75 $ 620.8 " 101.9 " 52.92 $ 11.35 $ 2.929$ 7
8 3.113$ 2.229$ 3.128$ 1.361& 0.990& 3.392$ 14.60 $ 762.0 " 96.67 " 47.79 $ 10.35 $ 2.830$ 8
9 2.818$ 2.527$ 3.354$ 1.196& 0.824& 3.323$ 15.71 $1041 " 90.04 $ 41.04 $ 9.897$ 2.617$ 9
10 2.655$ 5.131$ 3.899$ 1.423& 1.184& 3.964$ 32.76 $1169 " 81.98 $ 34.28 $ 8.698$ 2.286$ 10
11 2.536& 6.176$ 3.570$ 2.705$ 1.495& 3.680$ 52.14 $ 892.3 " 76.64 $ 28.94 $ 8.703$ 2.042$ 11
12 2.657& 5.594$ 2.777$ 2.927$ 1.526$ 3.239$ 44.21 $ 652.6 " 72.45 $ 28.17 $ 7.947$ 1.954$ 12
13 2.190& 5.938$ 3.698$ 2.743$ 1.980$ 5.586$ 33.34 $ 564.0 " 108.1 $ 27.71 $ 8.966$ 1.901$ 13
14 2.518& 7.126$ 3.486$ 2.524$ 2.462$ 5.060$ 31.17 $ 861.7 " 197.9 " 26.70 $ 8.746$ 1.765$ 14
15 2.591& 6.789$ 3.013$ 2.296$ 2.342$ 4.689$ 53.47 $ 844.1 " 184.0 " 25.30 $ 7.408$ 1.702& 15
16 2.615& 5.907$ 3.014$ 1.642$ 2.271$ 4.582$ 81.84 $ 771.9 " 153.1 " 22.95 $ 4.878$ 1.491& 16
17 2.930$ 5.532$ 4.070$ 1.730& 2.400$ 6.668$ 77.39 $1104 " 126.7 " 21.47 $ 5.487$ 2.052& 17
18 2.606$ 4.128$ 3.695$ 1.398& 2.626$ 10.70 $ 110.4 $1515 " 109.7 " 19.59 $ 5.927$ 4.079$ 18
19 2.747$ 3.184$ 3.268$ 1.752& 3.250$ 13.55 $ 156.6 "1100 " 125.0 " 18.68 $ 6.606$ 5.477$ 19
20 2.780$ 3.059$ 3.715$ 1.550& 2.518$ 13.29 $ 135.1 " 769.9 " 161.7 " 16.39 $ 6.843$ 5.319$ 20
21 2.635$ 3.062$ 3.673$ 1.782$ 2.102$ 13.46 $ 219.0 " 613.4 " 155.0 " 15.71 $ 7.264$ 5.190$ 21
22 2.081& 3.134$ 3.401$ 1.425$ 2.075$ 20.21 $ 360.5 " 480.0 " 138.8 " 15.53 $ 7.282$ 5.082$ 22
23 1.744& 3.097$ 2.840$ 1.315& 4.375$ 20.48 $ 349.2 " 387.3 " 124.1 " 14.98 $ 7.330$ 7.062$ 23
24 1.083& 3.098$ 3.085$ 1.513$ 14.70 $ 20.04 $ 547.9 " 331.4 " 117.2 " 16.28 $ 5.944$ 8.656$ 24
25 0.976& 3.244$ 3.061$ 1.780$ 11.48 $ 20.51 $ 478.6 " 280.1 " 112.8 " 16.92 $ 6.149$ 9.638$ 25
26 1.634& 2.142$ 3.234$ 1.649$ 8.765$ 19.88 $1019 " 246.1 " 106.3 " 17.60 $ 5.319$ 9.769$ 26
27 1.777& 3.014$ 3.911$ 1.992$ 6.778$ 18.72 $1331 " 212.6 " 94.51 $ 16.69 $ 5.758$ 9.713$ 27
28 2.615& 4.421$ 2.278$ 1.901$ 5.652$ 17.75 $ 894.6 " 185.4 " 83.70 $ 15.26 $ 5.407$ 10.03 $ 28
29 3.542$ 3.020$ 1.642& 4.626$ 16.66 $ 741.8 " 162.7 " 74.01 $ 13.65 $ 5.317$ 10.01 $ 29
30 3.737$ 3.003$ 1.251& 4.129$ 15.52 $ 833.2 " 147.9 " 65.69 $ 13.99 $ 4.731$ 9.428$ 30
31 2.484$ 2.420$ 3.907$ 750.1 " 134.1 " 14.89 $ 7.145$ 31
Mean 2.610& 3.746& 3.333$ 1.883& 3.318& 9.628$ 272.9 $ 680.9 " 113.2 $ 28.02 $ 8.620$ 4.746&
Median 2.655& 3.116& 3.354$ 1.741& 2.271& 5.323$ 77.39 $ 652.6 " 107.2 $ 22.95 $ 7.369$ 3.094&
Maximum 3.737& 7.126& 4.165$ 2.927& 14.70 & 20.51 $1331 $1515 " 197.9 $ 56.40 $ 15.96 $ 10.03 &
Minimum 0.976& 1.537& 2.278$ 1.196& 0.824& 3.205$ 13.28 $ 134.1 " 65.69 $ 13.65 $ 4.731$ 1.491&
Total 80.92& 104.9 & 103.3 $ 56.49& 102.9 & 288.9 $ 8461 $21108 " 3395 $ 868.7 $ 258.6 $ 147.1 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 95.83 & " ... Relative Uncertainty +/-10%
Ann. Median 5.532& $ ... Relative Uncertainty +/-20%
Annual Total 34976 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 1515 & 0.824&
Department of Water and Environmental Regulation HYDAY V146 Output 13/08/2026
Site 611226 Preston River - Donnybrook Dawson Rd 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 5.161$ 9.428$ 5.873$ 7.645$ 3.735$ 2.836$ 4.205$ 63.07 $ 56.49 $ 40.25 $ 6.114$ 7.639$ 1
2 3.880$ 9.131$ 5.836$ 8.186$ 3.474$ 3.062$ 4.219$ 132.2 $ 64.98 $ 48.74 $ 5.677$ 8.115$ 2
3 3.731$ 6.104$ 6.019$ 7.703$ 3.444$ 2.049$ 4.725$ 823.8 " 89.69 $ 64.88 $ 4.869$ 8.895$ 3
4 3.817$ 5.743$ 5.740$ 6.144$ 3.273$ 2.290$ 7.734$ 946.6 " 116.1 " 60.98 $ 4.443$ 9.458$ 4
5 3.702$ 5.761$ 5.619$ 6.750$ 3.984$ 5.536$ 10.05 $ 556.8 " 110.9 " 53.15 $ 4.337$ 7.697$ 5
6 3.151$ 5.662$ 5.683$ 6.461$ 3.725$ 9.956$ 12.30 $ 354.5 " 110.9 " 45.43 $ 4.846$ 8.636$ 6
7 3.103$ 7.037$ 5.350$ 4.239$ 3.313$ 8.399$ 12.00 $ 256.7 " 103.3 " 39.03 $ 3.594$ 8.249$ 7
8 3.288$ 8.140$ 5.366$ 3.778$ 3.255$ 9.112$ 11.58 $ 235.5 " 88.44 $ 33.18 $ 4.224$ 8.629$ 8
9 3.915$ 6.725$ 6.084$ 3.335$ 3.069$ 5.608$ 11.61 $ 527.2 " 76.85 $ 28.73 $ 4.077$ 7.593$ 9
10 3.730$ 6.326$ 6.076$ 4.366$ 3.147$ 3.926$ 11.08 $ 384.3 " 67.56 $ 24.79 $ 3.314$ 5.269$ 10
11 3.423$ 5.456$ 6.155$ 5.280$ 3.600$ 3.799$ 10.56 $ 301.5 " 61.59 $ 21.79 $ 3.099$ 4.294$ 11
12 3.525$ 3.995$ 6.130$ 4.599$ 2.700$ 4.087$ 10.49 $ 235.9 " 57.85 $ 19.35 $ 3.176$ 4.334$ 12
13 3.248$ 3.852$ 5.720$ 5.285$ 3.216$ 4.554$ 10.90 $ 193.7 " 112.6 $ 18.25 $ 3.793$ 3.940$ 13
14 2.575$ 3.632$ 3.797$ 6.369$ 4.060$ 5.575$ 14.28 $ 162.3 " 529.6 " 17.40 $ 3.743$ 3.790$ 14
15 2.821$ 3.915$ 3.061$ 4.631$ 3.798$ 5.361$ 12.32 $ 175.0 " 496.9 " 16.01 $ 3.445$ 3.233$ 15
16 2.463$ 3.197$ 3.026$ 5.991$ 3.586$ 5.706$ 11.75 $ 287.5 " 395.1 " 15.17 $ 3.742$ 3.667$ 16
17 2.353$ 4.114$ 3.547$ 4.270$ 3.571$ 5.034$ 11.36 $ 339.3 " 327.8 " 13.96 $ 3.298$ 3.493$ 17
18 3.004$ 5.547$ 3.967$ 4.618$ 3.549$ 4.266$ 11.63 $ 273.9 " 264.8 " 13.60 $ 3.571$ 3.342$ 18
19 3.019$ 6.008$ 3.610$ 4.994$ 3.281$ 4.156$ 40.33 $ 211.7 " 221.8 " 13.06 $ 4.024$ 3.394$ 19
20 3.964$ 5.149$ 3.467$ 4.715$ 2.995$ 4.821$ 77.01 $ 176.9 " 188.4 " 10.95 $ 4.086$ 3.282$ 20
21 5.269$ 6.114$ 3.498$ 4.157$ 2.643$ 5.155$ 81.28 $ 160.9 " 162.6 " 8.022$ 1.891& 2.797$ 21
22 6.511$ 5.758$ 3.347$ 2.969$ 2.378$ 5.103$ 70.92 $ 147.5 " 138.5 " 9.155$ 0.809& 3.455$ 22
23 6.143$ 5.717$ 2.956$ 2.836$ 2.065$ 5.096$ 60.78 $ 134.3 " 118.5 " 9.491$ 0.741& 2.608$ 23
24 5.885$ 5.573$ 3.182$ 2.652$ 1.722$ 5.225$ 48.76 $ 121.1 " 101.2 " 9.299$ 0.787& 2.803$ 24
25 8.056$ 5.593$ 3.255$ 3.717$ 1.334$ 5.156$ 41.43 $ 105.6 " 88.52 $ 9.611$ 0.892& 2.385& 25
26 9.969$ 6.128$ 5.023$ 4.720$ 1.427$ 4.952$ 48.75 $ 98.16 " 77.53 $ 8.340$ 0.271& 3.884$ 26
27 10.07 $ 6.385$ 5.321$ 4.681$ 1.910$ 4.831$ 62.02 $ 89.42 $ 69.48 $ 7.052$ 0.989& 7.197$ 27
28 9.625$ 6.030$ 6.947$ 4.248$ 1.306& 4.870$ 59.79 $ 82.71 $ 63.75 $ 6.779$ 0.328& 7.559$ 28
29 10.27 $ 7.219$ 4.267$ 1.193& 4.729$ 65.11 $ 76.16 $ 52.45 $ 7.220$ 3.626& 9.167$ 29
30 10.77 $ 7.581$ 3.999$ 1.977$ 4.404$ 73.64 $ 67.72 $ 44.67 $ 6.753$ 7.324$ 9.130$ 30
31 9.473$ 7.352$ 2.125$ 67.61 $ 61.49 $ 6.442$ 11.37 $ 31
Mean 5.158$ 5.794$ 5.026$ 4.920$ 2.866& 4.989$ 31.62 $ 251.1 $ 148.6 $ 22.16 $ 3.304& 5.784&
Median 3.817$ 5.751$ 5.366$ 4.625$ 3.216& 4.911$ 12.30 $ 176.9 $ 102.2 $ 15.17 $ 3.610& 4.334&
Maximum 10.77 $ 9.428$ 7.581$ 8.186$ 4.060& 9.956$ 81.28 $ 946.6 $ 529.6 $ 64.88 $ 7.324& 11.37 &
Minimum 2.353$ 3.197$ 2.956$ 2.652$ 1.193& 2.049$ 4.205$ 61.49 $ 44.67 $ 6.442$ 0.271& 2.385&
Total 159.9 $ 162.2 $ 155.8 $ 147.6 $ 88.85 & 149.7 $ 980.2 $7783 $4459 $ 686.8 $ 99.13 & 179.3 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 41.24 & " ... Relative Uncertainty +/-10%
Ann. Median 5.743& $ ... Relative Uncertainty +/-20%
Annual Total 15052 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 946.6 & 0.271&
Department of Water and Environmental Regulation HYDAY V146 Output 13/08/2026
Site 611226 Preston River - Donnybrook Dawson Rd 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 11.96 $ 5.572$ 0.721& 3.018$ 0.194$ 1.733$ 7.546$ 813.9 " 567.7 # 42.70 $ 9.424$ 6.193^ 1
2 12.52 $ 5.628$ 1.359& 2.706$ 0.371& 5.582$ 8.779$ 848.2 " 454.0 # 60.46 $ 8.511$ 5.326^ 2
3 11.69 $ 4.748$ 1.284& 2.528$ 0.452& 8.559$ 8.293$ 559.6 " 376.7 # 137.9 # 7.520$ 4.983^ 3
4 10.88 $ 3.364$ 1.150& 2.554$ 0.548& 5.132$ 7.114$ 374.7 " 348.1 # 140.8 # 5.855$ 5.797^ 4
5 10.09 $ 3.901$ 1.200& 2.557$ 0.575& 5.516$ 6.602$ 286.8 " 502.1 # 111.2 # 4.266$ 4.409^ 5
6 9.206$ 5.224$ 1.040& 2.024$ 0.512& 5.450$ 6.341$ 247.0 " 506.1 # 91.50 $ 4.068$ 3.266^ 6
7 9.575$ 5.680$ 1.106& 1.517& 0.559& 15.00 $ 7.636$ 359.1 " 434.0 # 75.81 $ 3.058$ 3.365^ 7
8 9.215$ 4.289$ 0.946& 1.140& 0.789& 9.590$ 8.713$ 453.5 " 360.9 # 63.66 $ 2.823$ 2.954^ 8
9 10.63 $ 3.854$ 1.006& 0.822& 0.792& 13.14 $ 11.55 $ 346.3 " 298.3 # 53.40 $ 3.147$ 2.715^ 9
10 9.762$ 6.418$ 1.494& 0.796& 1.048& 18.56 $ 51.80 $ 276.2 " 258.3 # 43.03 $ 3.306$ 2.592^ 10
11 10.23 $ 3.563$ 2.220$ 0.655& 3.424$ 14.35 $ 68.72 $ 249.4 " 222.1 # 36.40 $ 3.059$ 3.118^ 11
12 8.772$ 4.681$ 2.416$ 0.418& 3.237$ 17.04 $ 58.56 $ 294.5 " 195.3 # 30.85 $ 3.069$ 5.923^ 12
13 7.988$ 3.491$ 2.513$ 0.429& 2.868$ 17.94 $ 48.26 $ 296.1 " 174.6 # 26.24 $ 3.290$ 3.858^ 13
14 8.935$ 2.648$ 2.849$ 0.471& 2.459$ 15.82 $ 38.03 $ 470.5 " 152.7 # 22.89 $ 3.191$ 1.911^ 14
15 8.573$ 1.448& 3.357$ 0.500& 3.371$ 12.38 $ 29.28 $ 626.5 " 130.6 # 21.63 $ 2.434& 1.316^ 15
16 8.788$ 1.169& 3.020$ 0.456& 4.522$ 11.62 $ 19.42 $ 518.7 " 113.4 # 19.75 $ 2.069& 1.726^ 16
17 9.829$ 0.940& 3.446$ 0.409& 1.860$ 10.39 $ 23.94 $ 593.5 " 101.2 # 18.95 $ 1.583& 0.723^ 17
18 8.199$ 0.584& 3.748$ 0.360& 1.556$ 9.355$ 43.24 $1385 " 92.18 $ 18.19 $ 1.766& 0.738^ 18
19 8.392$ 0.589& 3.580$ 0.184& 1.380$ 8.386$ 60.55 $1519 " 82.62 $ 17.93 $ 2.071& 0.438^ 19
20 7.051$ 0.645& 3.300$ 0.076$ 1.177& 7.448$ 69.01 $1025 " 74.60 $ 15.30 $ 449.2 $ 0.409^ 20
21 5.940$ 0.446& 3.229$ 0.030$ 1.063& 6.991$ 68.00 $ 737.4 " 68.95 $ 16.90 $ 311.9 " 0.575^ 21
22 5.931$ 0.443& 3.096$ 0.045$ 1.004& 8.807$ 74.70 $ 629.6 " 64.38 $ 19.63 $ 119.4 ^ 0.547^ 22
23 7.327$ 0.363& 3.055$ 0.032$ 0.960& 11.16 $ 201.1 " 905.2 " 60.97 $ 20.08 $ 70.53 ^ 0.503^ 23
24 8.436$ 0.289& 3.131$ 0.012$ 1.001& 10.28 $ 272.5 "1778 # 54.88 $ 18.11 $ 45.61 ^ 0.343^ 24
25 7.087$ 0.349& 3.004$ 0.000# 1.121& 9.874$ 212.0 "2336 # 47.69 $ 15.45 $ 26.67 ^ 0.784^ 25
26 5.655$ 0.887& 2.939$ 0.021$ 1.076& 9.837$ 174.1 "1486 " 43.93 $ 13.64 $ 17.39 ^ 1.220^ 26
27 6.298$ 0.840& 3.029$ 0.098$ 1.273$ 10.21 $ 138.3 "1003 " 48.06 $ 13.46 $ 15.71 ^ 1.267^ 27
28 6.630$ 0.746& 2.743$ 0.147$ 1.477$ 9.813$ 185.5 " 838.8 " 59.77 $ 13.20 $ 12.27 ^ 1.414^ 28
29 5.368$ 0.580& 2.489$ 0.203& 1.671$ 8.568$ 437.4 " 869.1 " 57.52 $ 12.29 $ 9.742^ 0.943^ 29
30 6.986$ 2.818$ 0.184$ 1.495$ 8.446$ 431.1 " 938.7 " 47.83 $ 11.09 $ 9.097^ 1.107^ 30
31 6.491$ 2.698$ 1.374$ 479.8 " 704.0 # 10.09 $ 1.132^ 31
Mean 8.530$ 2.530& 2.387& 0.813& 1.458& 10.23 $ 105.1 $ 766.8 # 200.0 $ 39.11 $ 38.73 ^ 2.310^
Median 8.573$ 1.448& 2.743& 0.423& 1.121& 9.825$ 51.80 $ 629.6 # 122.0 $ 20.08 $ 5.060^ 1.414^
Maximum 12.52 $ 6.418& 3.748& 3.018& 4.522& 18.56 $ 479.8 $2336 # 567.7 $ 140.8 $ 449.2 ^ 6.193^
Minimum 5.368$ 0.289& 0.721& 0.000& 0.194& 1.733$ 6.341$ 247.0 # 43.93 $ 10.09 $ 1.583^ 0.343^
Total 264.4 $ 73.38& 73.99& 24.39& 45.21& 307.0 $ 3258 $23771 # 5999 $ 1212 $ 1162 ^ 71.60^
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 99.08 ^ " ... Relative Uncertainty +/-10%
Ann. Median 6.988^ # ... Relative Uncertainty +/-15%
Annual Total 36262 ^ $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum ^ ... Relative Uncertainty +/-50%
Daily 2336 ^ 0.000^
Department of Water and Environmental Regulation HYDAY V146 Output 13/08/2026
Site 611226 Preston River - Donnybrook Dawson Rd 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 1.399^ 2.572$ 1.679$ 0.321& 1.918$ 1.798$ 4.714$ 383.8 # 367.9 # 127.3 # 23.14 $ 7.500$ 1
2 1.180^ 2.688$ 1.724$ 0.105$ 1.776$ 1.814$ 5.627$ 558.5 # 320.8 # 118.5 # 22.64 $ 6.076$ 2
3 0.922^ 1.978$ 1.442& 0.112$ 2.328$ 3.527$ 30.96 $1599 # 288.6 # 108.7 # 20.97 $ 5.073$ 3
4 0.767^ 2.242$ 1.855& 0.393& 2.363$ 6.466$ 65.46 $1882 # 258.3 # 110.5 # 18.35 $ 4.222$ 4
5 1.065^ 1.718$ 1.925$ 0.551& 2.339$ 7.939$ 70.98 $1260 # 361.5 # 134.8 # 16.80 $ 3.829$ 5
6 0.895^ 1.658$ 1.146& 0.746& 3.317$ 7.554$ 67.65 $ 877.3 # 882.8 # 124.1 # 16.23 $ 3.657$ 6
7 0.660^ 1.653$ 1.219& 0.853& 3.176$ 6.789$ 111.8 $ 665.5 #1021 # 107.3 # 15.52 $ 3.134$ 7
8 0.642^ 1.800$ 1.497$ 1.849& 2.774$ 4.807$ 151.6 " 549.2 # 850.7 # 95.71 # 14.80 $ 2.785$ 8
9 0.895^ 1.356$ 1.395& 4.798$ 2.507$ 3.743$ 124.8 " 663.3 # 662.6 # 88.60 $ 13.64 $ 2.713$ 9
10 0.746^ 1.495& 1.861$ 4.872$ 2.154$ 3.629$ 95.94 $ 763.1 # 513.9 # 79.75 $ 12.64 $ 2.504$ 10
11 0.673^ 4.295$ 1.954$ 5.612$ 2.220$ 3.803$ 80.11 $ 736.3 # 423.1 # 71.54 $ 11.58 $ 2.072& 11
12 0.764^ 4.864$ 1.088& 5.099$ 1.731$ 3.420$ 93.20 $ 579.6 # 355.8 # 65.03 $ 10.60 $ 1.581& 12
13 1.037^ 4.994$ 1.650& 5.226$ 1.552$ 3.291$ 186.6 # 462.3 # 416.4 # 60.48 $ 9.602$ 1.598& 13
14 0.580^ 5.119$ 2.692$ 5.132$ 1.448$ 3.517$ 197.0 # 870.1 # 803.7 # 54.73 $ 9.154$ 1.565& 14
15 0.629^ 5.411$ 2.616$ 5.862$ 1.261$ 3.446$ 169.1 #1010 #1181 # 50.56 $ 8.271$ 2.952$ 15
16 0.677^ 4.186$ 3.011$ 5.054$ 1.170$ 3.311$ 197.8 # 752.0 #1091 # 45.42 $ 7.462$ 1.877& 16
17 0.223^ 2.577$ 2.906$ 3.164$ 1.070& 3.273$ 225.6 # 565.1 # 921.3 # 41.44 $ 6.987$ 1.643& 17
18 0.518^ 1.977$ 2.176$ 2.711$ 1.008& 3.952$ 196.6 # 450.1 #1032 # 40.35 $ 6.624$ 1.258& 18
19 0.567^ 1.717$ 1.776$ 2.178$ 0.963& 4.721$ 185.9 # 847.8 # 781.7 # 41.31 $ 6.048$ 1.419& 19
20 1.056^ 1.515$ 1.751$ 2.051$ 0.932& 5.011$ 190.3 #2514 # 617.6 # 48.63 $ 5.340$ 1.215& 20
21 0.512^ 1.241& 1.660& 1.756& 0.977& 9.230$ 361.7 #1999 # 503.0 # 52.23 $ 4.997$ 2.841& 21
22 0.869^ 1.213& 1.869$ 1.641& 0.975& 9.925$ 380.5 #1309 # 405.4 # 48.80 $ 6.897$ 2.864$ 22
23 1.164& 1.326$ 1.831$ 1.501$ 0.982& 8.883$ 370.2 # 918.7 # 338.6 # 41.84 $ 11.86 $ 2.998$ 23
24 1.139& 1.472& 1.857$ 1.936$ 0.988& 8.401$ 618.2 # 777.0 # 294.0 # 36.40 $ 17.60 $ 2.123$ 24
25 1.215& 1.452& 1.567$ 1.948$ 1.037& 7.059$ 622.8 # 981.2 # 254.5 # 34.46 $ 15.08 $ 2.717$ 25
26 1.190& 1.408& 1.509& 1.939$ 1.051& 6.024$ 440.2 #1154 # 218.5 # 35.62 $ 14.23 $ 2.914$ 26
27 1.915$ 1.801& 1.421& 2.001$ 1.042& 5.329$ 449.9 #1031 # 189.6 # 31.25 $ 12.62 $ 2.391$ 27
28 1.770$ 1.766$ 1.260& 1.939$ 0.967& 4.862$ 995.0 # 809.9 # 168.1 # 25.87 $ 11.11 $ 2.558$ 28
29 2.179$ 0.965& 1.828$ 0.975& 4.496$1055 # 636.5 # 152.7 # 22.67 $ 10.12 $ 3.895$ 29
30 1.764$ 0.725& 2.015$ 1.042& 4.366$ 736.6 # 502.7 # 133.9 # 21.93 $ 8.571$ 4.458$ 30
31 2.059$ 0.707& 1.385$ 506.5 # 417.4 # 22.38 $ 3.693$ 31
Mean 1.022^ 2.411& 1.701& 2.506& 1.594& 5.146$ 289.9 $ 920.2 # 527.0 # 64.14 $ 12.32 $ 2.972&
Median 0.895^ 1.783& 1.679& 1.944& 1.261& 4.609$ 190.3 $ 777.0 # 410.9 # 50.56 $ 11.72 $ 2.785&
Maximum 2.179^ 5.411& 3.011& 5.862& 3.317& 9.925$1055 $2514 #1181 # 134.8 $ 23.14 $ 7.500&
Minimum 0.223^ 1.213& 0.707& 0.105& 0.932& 1.798$ 4.714$ 383.8 # 133.9 # 21.93 $ 4.997$ 1.215&
Total 31.67^ 67.49& 52.73& 75.19& 49.43& 154.4 $ 8988 $28526 #15811 # 1988 $ 369.5 $ 92.13&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 154.0 ^ " ... Relative Uncertainty +/-10%
Ann. Median 4.714^ # ... Relative Uncertainty +/-15%
Annual Total 56205 ^ $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum ^ ... Relative Uncertainty +/-50%
Daily 2514 ^ 0.105^
Department of Water and Environmental Regulation HYDAY V146 Output 13/08/2026
Site 611226 Preston River - Donnybrook Dawson Rd 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 3.718$ 2.706& 2.651^ 3.319^ 2.303$ 8.884$ 159.8 " 78.96 $ [ ] [ ] [ ] [ ] 1
2 4.545$ 1.881& 2.066^ 2.824^ 2.301$ 10.84 $ 140.9 " 75.63 $ [ ] [ ] [ ] [ ] 2
3 3.815$ 1.354& 2.123^ 2.778$ 2.204$ 10.91 $ 115.6 " 71.43 $ [ ] [ ] [ ] [ ] 3
4 3.375$ 1.433& 2.139^ 2.564$ 2.130$ 8.284$ 97.11 " 73.96 $ [ ] [ ] [ ] [ ] 4
5 3.355$ 1.419^ 2.245^ 2.583$ 2.052$ 6.404$ 87.19 $ 84.23 $ [ ] [ ] [ ] [ ] 5
6 3.009$ 1.096^ 2.059^ 2.503$ 1.887$ 5.312$ 87.90 $ 86.43 $ [ ] [ ] [ ] [ ] 6
7 3.102$ 1.058^ 2.265^ 2.269$ 1.880$ 4.675$ 92.67 " 82.89 $ [ ] [ ] [ ] [ ] 7
8 2.740$ 1.343^ 1.664^ 2.233$ 1.828$ 5.588$ 83.78 $ 95.57 $ [ ] [ ] [ ] [ ] 8
9 3.464$ 1.399^ 1.256^ 2.329$ 1.783$ 9.592$ 74.39 $ 123.8 " [ ] [ ] [ ] [ ] 9
10 3.566$ 1.535^ 0.805^ 2.201$ 1.777$ 16.11 $ 70.00 $ 136.8 " [ ] [ ] [ ] [ ] 10
11 3.542$ 1.441^ 0.832^ 1.979$ 1.856$ 15.81 $ 64.27 $ 188.0 " [ ] [ ] [ ] [ ] 11
12 4.269$ 2.624^ 0.773^ 1.767$ 1.842$ 13.88 $ 57.81 $ [ ] [ ] [ ] [ ] [ ] 12
13 2.917$ 2.665^ 0.529^ 1.555$ 1.864$ 13.47 $ 51.35 $ [ ] [ ] [ ] [ ] [ ] 13
14 3.367$ 4.309^ 0.578^ 1.389$ 1.823$ 13.38 $ 52.27 $ [ ] [ ] [ ] [ ] [ ] 14
15 3.527$ 4.424^ 0.944^ 0.991& 1.860$ 13.46 $ 49.98 $ [ ] [ ] [ ] [ ] [ ] 15
16 2.463$ 4.974^ 1.172^ 1.005& 1.866$ 14.85 $ 58.81 $ [ ] [ ] [ ] [ ] [ ] 16
17 2.360$ 4.438^ 0.955^ 1.078& 1.953$ 14.40 $ 195.3 " [ ] [ ] [ ] [ ] [ ] 17
18 2.964$ 3.767^ 0.809^ 0.966& 2.055$ 13.22 $ 427.5 " [ ] [ ] [ ] [ ] [ ] 18
19 2.392$ 3.650^ 0.986^ 1.196$ 2.121$ 12.21 $ 555.0 " [ ] [ ] [ ] [ ] [ ] 19
20 2.054$ 3.400^ 1.739^ 1.320$ 2.141$ 11.23 $ 405.6 " [ ] [ ] [ ] [ ] [ ] 20
21 2.235& 2.950^ 1.793^ 1.577$ 2.177$ 10.73 $ 282.0 " [ ] [ ] [ ] [ ] [ ] 21
22 1.929& 3.195^ 1.346^ 1.675$ 2.140$ 10.35 $ 211.2 " [ ] [ ] [ ] [ ] [ ] 22
23 2.231& 3.016^ 1.739^ 1.936$ 2.011$ 10.09 $ 168.6 " [ ] [ ] [ ] [ ] [ ] 23
24 1.597& 2.809^ 0.703^ 2.015$ 2.045$ 10.19 $ 142.0 " [ ] [ ] [ ] [ ] [ ] 24
25 1.708& 2.430^ 0.846^ 2.173$ 2.056$ 9.705$ 124.2 " [ ] [ ] [ ] [ ] [ ] 25
26 2.825$ 2.579^ 1.075^ 2.166$ 2.067$ 10.73 $ 115.2 " [ ] [ ] [ ] [ ] [ ] 26
27 2.444$ 2.664^ 1.094^ 2.338$ 2.243$ 25.14 $ 113.2 " [ ] [ ] [ ] [ ] [ ] 27
28 2.277& 2.740^ 3.197^ 2.770$ 3.251$ 72.84 $ 104.8 " [ ] [ ] [ ] [ ] [ ] 28
29 2.337& 4.841^ 2.816$ 3.684$ 115.3 " 95.95 " [ ] [ ] [ ] [ ] [ ] 29
30 2.142& 7.159^ 2.551$ 3.387$ 123.9 " 89.19 $ [ ] [ ] [ ] [ ] [ ] 30
31 2.060$ 5.223^ 6.154$ 84.24 $ [ ] [ ] [ ] 31
Mean 2.849& 2.618^ 1.858^ 2.029^ 2.282$ 20.72 $ 143.8 $ 99.79 $ [ ] [ ] [ ] [ ]
Median 2.825& 2.664^ 1.346^ 2.169^ 2.055$ 11.07 $ 97.11 $ 84.23 $ [ ] [ ] [ ] [ ]
Maximum 4.545& 4.974^ 7.159^ 3.319^ 6.154$ 123.9 $ 555.0 $ 188.0 $ [ ] [ ] [ ] [ ]
Minimum 1.597& 1.058^ 0.529^ 0.966^ 1.777$ 4.675$ 49.98 $ 71.43 $ [ ] [ ] [ ] [ ]
Total 88.33 & 73.30 ^ 57.61 ^ 60.86 ^ 70.74 $ 621.5 $4458 $1098 $ [ ] [ ] [ ] [ ]
Missing Days 0 0 0 0 0 0 0 20 30 31 30 31
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 29.27 ^ " ... Relative Uncertainty +/-10%
Ann. Median 2.770^ $ ... Relative Uncertainty +/-20%
Annual Total 6528 ^ & ... Relative Uncertainty +/-30%
Missing Days 142 [ ... Not Available
^ ... Relative Uncertainty +/-50%
Maximum Minimum
Daily 555.0 ^ 0.529^