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Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan Year 1965
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& 51.70 &2041 & 345.0 " 291.1 " 72.96 " 99.10 " 13.25 & 1
2 [ ] [ ] [ ] [ ] 0.000& 31.62 &2152 & 278.3 " 220.5 " 62.93 " 92.01 " 18.13 & 2
3 [ ] [ ] [ ] [ ] 0.000& 14.67 &1836 & 326.1 " 188.5 " 79.62 " 59.66 " 20.33 & 3
4 [ ] [ ] [ ] [ ] 0.000& 10.37 &1520 & 229.3 " 244.7 " 149.2 " 59.75 " 16.96 & 4
5 [ ] [ ] [ ] [ ] 0.000& 18.56 &1593 & 144.7 " 235.4 " 892.8 & 129.9 " 14.24 & 5
6 [ ] [ ] [ ] [ ] 0.000& 122.7 " 853.8 " 110.0 " 171.7 "2736 & 137.3 " 12.08 & 6
7 [ ] [ ] [ ] [ ] 0.000& 56.67 " 448.9 " 88.28 " 163.7 "2692 & 122.1 " 11.26 & 7
8 [ ] [ ] [ ] [ ] 0.431& 24.74 & 469.2 " 119.0 " 169.9 "1608 & 115.6 " 10.45 & 8
9 [ ] [ ] [ ] [ ] 6.356& 17.46 &1388 " 221.7 " 164.9 " 934.2 " 97.76 " 9.586& 9
10 [ ] [ ] [ ] [ ] 6.612& 14.00 & 988.9 " 267.2 " 195.6 " 446.5 " 61.96 " 7.757& 10
11 [ ] [ ] [ ] [ ] 3.922& 12.04 & 438.9 " 176.9 " 156.6 " 220.9 " 45.09 " 6.475& 11
12 [ ] [ ] [ ] [ ] 2.984& 10.52 & 296.7 " 133.7 " 106.2 " 153.2 " 34.10 " 5.612& 12
13 [ ] [ ] [ ] [ ] 2.613& 16.37 & 224.3 " 120.8 " 135.6 " 123.2 " 30.15 & 4.719& 13
14 [ ] [ ] [ ] [ ] 2.490& 22.04 & 185.1 " 127.6 " 317.4 " 103.6 " 27.84 & 3.728& 14
15 [ ] [ ] [ ] [ ] 2.452& 38.55 & 158.6 " 111.8 " 260.2 " 85.66 " 26.29 & 3.342& 15
16 [ ] [ ] [ ] [ ] 2.351& 38.78 " 137.9 " 105.5 " 151.0 " 69.29 " 22.22 & 2.961& 16
17 [ ] [ ] [ ] [ ] 2.189& 28.32 & 117.8 " 978.5 " 123.4 " 56.22 " 20.53 & 2.632& 17
18 [ ] [ ] [ ] [ ] 2.169& 19.70 & 96.47 "1391 & 101.5 " 47.11 " 19.43 & 2.712& 18
19 [ ] [ ] [ ] [ ] 2.124& 27.36 & 582.7 " 804.0 " 107.8 " 41.89 " 19.29 & 2.865& 19
20 [ ] [ ] [ ] [ ] 1.998& 54.70 " 764.0 " 473.4 " 126.8 " 40.29 " 17.63 & 3.303& 20
21 [ ] [ ] [ ] [ ] 2.068& 41.59 " 308.1 " 897.2 " 99.49 " 50.72 " 14.95 & 4.346& 21
22 [ ] [ ] [ ] [ ] 2.392& 29.62 & 218.9 " 924.1 " 79.04 " 85.51 " 13.68 & 4.993& 22
23 [ ] [ ] [ ] [ ] 4.161& 25.69 & 171.8 "1185 & 67.68 " 74.56 " 12.94 & 3.921& 23
24 [ ] [ ] [ ] 0.000& 6.981& 84.21 " 140.9 "2045 & 85.67 " 58.33 " 11.76 & 3.107& 24
25 [ ] [ ] [ ] 0.000& 5.768& 92.62 " 123.9 "1213 & 156.5 " 46.20 " 11.15 & 2.509& 25
26 [ ] [ ] [ ] 0.000& 5.278& 62.47 " 125.3 " 895.5 " 432.2 " 40.01 " 11.51 & 2.504& 26
27 [ ] [ ] [ ] 0.000& 10.27 & 728.5 " 120.5 " 660.5 " 351.3 " 35.01 " 12.12 & 1.992& 27
28 [ ] [ ] [ ] 0.000& 9.623& 999.3 & 96.71 " 337.4 " 154.6 " 31.37 " 14.10 & 1.163& 28
29 [ ] [ ] 0.000& 20.38 &1473 & 88.40 " 253.0 " 115.0 " 28.51 & 13.80 & 2.366& 29
30 [ ] [ ] 0.000& 29.01 &1022 " 96.54 " 499.4 " 90.63 " 26.39 & 13.43 & 2.196& 30
31 [ ] [ ] 19.56 & 227.2 " 572.7 " 38.81 & 2.153& 31
Mean [ ] [ ] [ ] 0.000& 4.974& 173.0 & 581.0 & 517.3 & 175.5 " 359.1 & 45.57 & 6.569&
Median [ ] [ ] [ ] 0.000& 2.452& 30.62 & 227.2 & 326.1 & 156.5 " 72.96 & 24.26 & 3.921&
Maximum [ ] [ ] [ ] 0.000& 29.01 &1473 &2152 &2045 & 432.2 "2736 & 137.3 & 20.33 &
Minimum [ ] [ ] [ ] 0.000& 0.000& 10.37 & 88.40 & 88.28 & 67.68 " 26.39 & 11.15 & 1.163&
Total [ ] [ ] [ ] 0.00& 154.2 & 5189 &18011 &16035 & 5264 "11132 & 1367 & 203.6 &
Missing Days 31 28 31 23 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 227.6 & " ... Relative Uncertainty +/-10%
Ann. Median 60.86 & & ... Relative Uncertainty +/-30%
Annual Total 57357 & [ ... Not Available
Missing Days 113
Maximum Minimum
Daily 2736 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan Year 1966
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 2.489& 0.000& 0.000& 0.000& 0.000& 8.362& 86.36 & 542.1 & 180.0 & 40.80 & 7.953& 1.126" 1
2 2.431& 0.000& 0.000& 0.000& 0.050& 7.831& 57.32 & 317.2 & 133.8 & 31.32 & 7.377& 0.929" 2
3 2.026& 0.000& 0.000& 0.000& 0.066& 10.88 & 131.9 & 239.6 & 107.6 & 25.62 & 6.856& 0.610" 3
4 1.742& 0.000& 0.000& 0.000& 0.046& 11.97 & 196.2 & 180.0 & 90.50 & 22.03 & 7.079& 0.385" 4
5 2.109& 0.000& 0.000& 0.000& 0.065& 16.64 & 151.7 & 137.8 & 85.66 & 19.42 & 7.244& 0.185" 5
6 1.101& 0.000& 0.000& 0.000& 0.060& 15.94 & 81.43 & 112.2 & 93.66 & 18.01 & 8.278& 0.028" 6
7 0.656& 0.000& 0.000& 0.000& 0.063& 23.69 & 55.15 & 94.96 & 88.66 & 18.30 & 9.173& 0.000" 7
8 0.454& 0.000& 0.000& 0.000& 0.055& 23.95 & 43.83 & 89.29 & 79.03 & 20.07 & 8.894& 0.000" 8
9 0.323& 0.000& 0.000& 0.000& 0.076& 22.55 & 36.46 & 90.07 & 76.77 & 73.74 & 7.594& 0.000" 9
10 0.180& 0.000& 0.000& 0.000& 0.073& 18.39 & 31.83 & 77.22 & 67.82 & 109.0 & 6.706" 0.000" 10
11 0.121& 0.000& 0.000& 0.000& 0.065& 12.77 & 28.96 & 68.85 & 56.59 & 76.87 & 6.265" 0.000" 11
12 0.073& 0.000& 0.000& 0.000& 0.053& 41.60 & 27.26 & 63.45 & 76.82 & 49.73 & 5.620" 0.000" 12
13 0.067& 0.000& 0.000& 0.000& 0.074& 59.12 & 33.05 & 57.20 & 126.0 & 38.23 & 4.488" 0.000" 13
14 0.068& 0.000& 0.000& 0.000& 0.067& 34.40 & 305.8 & 53.05 & 261.7 & 35.29 & 3.114" 0.000" 14
15 0.022& 0.000& 0.000& 0.000& 0.080& 23.53 & 295.7 & 51.46 & 233.6 & 29.87 & 2.699" 0.000" 15
16 0.000& 0.000& 0.000& 0.000& 0.095& 26.21 & 199.0 & 52.53 & 118.1 & 23.94 & 2.518" 0.000" 16
17 0.000& 0.000& 0.000& 0.000& 9.542& 121.9 & 308.6 & 54.73 & 86.18 & 19.36 & 2.081" 0.000" 17
18 0.000& 0.000& 0.000& 0.000& 10.12 & 59.72 & 739.0 & 46.63 & 232.9 & 16.43 & 2.039" 0.000" 18
19 0.000& 0.000& 0.000& 0.000& 9.159& 33.03 & 986.2 & 42.64 & 564.3 & 14.04 & 1.941" 0.000" 19
20 0.000& 0.000& 0.000& 0.000& 8.726& 35.83 &1898 & 40.04 & 319.5 & 11.85 & 1.899" 0.000" 20
21 0.000& 0.000& 0.000& 0.000& 8.512& 91.26 &1850 & 36.86 & 166.1 & 11.26 & 2.084" 0.000" 21
22 0.000& 0.000& 0.000& 0.000& 8.887& 74.03 & 986.8 & 35.12 & 127.1 & 12.06 & 2.266" 0.000" 22
23 0.000& 0.000& 0.000& 0.000& 9.741& 39.64 & 891.0 & 32.70 & 100.8 & 22.39 & 2.470" 0.000" 23
24 0.000& 0.000& 0.000& 0.003& 8.451& 73.09 & 728.6 & 38.33 & 80.63 & 34.41 & 1.951" 0.000" 24
25 0.000& 0.000& 0.000& 0.032& 7.605& 211.8 & 408.7 & 88.15 & 88.40 & 25.10 & 1.789" 0.000" 25
26 0.000& 0.000& 0.000& 0.000& 7.132& 93.97 & 275.6 & 133.4 & 120.7 & 17.96 & 1.541" 0.000" 26
27 0.000& 0.000& 0.000& 0.013& 6.688& 50.89 & 195.0 & 481.8 & 99.39 & 13.95 & 1.614" 0.000" 27
28 0.000& 0.000& 0.000& 0.015& 6.874& 37.15 & 151.2 & 890.4 & 84.41 & 11.77 & 2.064" 0.000" 28
29 0.000& 0.000& 0.008& 7.753& 39.74 & 125.9 & 657.6 & 67.30 & 10.26 & 1.899" 0.000" 29
30 0.000& 0.000& 0.000& 7.483& 134.3 & 202.1 & 390.1 & 53.15 & 9.359& 1.483" 0.000" 30
31 0.000& 0.000& 8.590& 753.8 & 260.2 & 8.583& 0.000" 31
Mean 0.447& 0.000& 0.000& 0.002& 4.073& 48.48 & 395.6 & 176.0 & 135.6 & 28.10 & 4.299& 0.105"
Median 0.000& 0.000& 0.000& 0.000& 0.095& 35.11 & 196.2 & 88.15 & 96.53 & 20.07 & 2.609& 0.000"
Maximum 2.489& 0.000& 0.000& 0.032& 10.12 & 211.8 &1898 & 890.4 & 564.3 & 109.0 & 9.173& 1.126"
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 7.831& 27.26 & 32.70 & 53.15 & 8.583& 1.483& 0.000"
Total 13.86& 0.00& 0.00& 0.07& 126.2 & 1454 &12263 & 5456 & 4067 & 871.0 & 129.0 & 3.26"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 66.80 & " ... Relative Uncertainty +/-10%
Ann. Median 2.699& & ... Relative Uncertainty +/-30%
Annual Total 24384 &
Maximum Minimum
Daily 1898 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan Year 1967
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" 4.191" 121.0 " 304.6 & 456.9 # 240.6 & 36.12 & 5.455& 1.604& 1
2 0.000" 0.000" 0.000" 0.000" 4.569" 163.6 " 646.3 & 374.4 # 621.9 & 32.76 & 8.135& 0.979& 2
3 0.000" 0.000" 0.000" 0.000" 4.979" 394.6 " 726.9 # 335.4 # 998.3 # 33.63 & 7.783& 0.483& 3
4 0.000" 0.000" 0.000" 0.000" 4.459" 203.9 " 395.0 # 282.9 & 606.2 # 96.84 & 7.376& 0.422& 4
5 0.000" 0.000" 0.000" 0.000" 4.443" 190.0 " 322.4 # 231.7 & 350.5 & 164.7 & 7.080& 0.360& 5
6 0.000" 0.000" 0.000" 0.000" 4.619" 745.0 " 343.3 # 205.6 & 247.0 & 82.81 & 6.405& 0.422& 6
7 0.000" 0.000" 0.000" 0.000" 4.150" 446.0 " 308.1 & 196.6 & 190.2 & 64.79 & 5.600& 0.388& 7
8 0.000" 0.000" 0.000" 0.000" 14.82 " 476.9 " 239.8 & 641.3 & 158.0 & 109.7 & 4.427& 0.328& 8
9 0.000" 0.000" 0.000" 0.000" 95.83 " 799.7 " 252.2 &1132 # 139.2 & 113.8 & 3.688& 0.355& 9
10 0.000" 0.000" 0.000" 0.000" 148.9 " 483.4 " 642.0 # 645.4 # 125.5 & 67.54 & 3.085& 3.501& 10
11 0.000" 0.000" 0.000" 0.000" 75.39 " 587.2 " 495.0 # 390.4 # 113.9 & 49.54 & 3.240& 8.302& 11
12 0.000" 0.000" 0.000" 0.000" 36.86 "1125 " 343.4 # 328.4 & 106.5 & 42.65 & 3.332& 5.344& 12
13 0.000" 0.000" 0.000" 0.000" 19.99 " 777.5 " 267.8 & 258.1 & 98.13 & 37.87 & 4.404& 3.006& 13
14 0.000" 0.000" 0.000" 0.000" 13.83 " 525.5 " 215.1 & 205.8 & 89.21 & 33.46 & 4.566& 1.419& 14
15 0.000" 0.000" 0.000" 0.000" 10.84 " 375.2 " 477.9 & 208.6 & 82.02 & 28.99 & 4.727& 0.366& 15
16 0.000" 0.000" 0.000" 0.000" 29.72 " 261.5 " 834.3 # 925.6 # 76.35 & 24.94 & 4.091& 0.364& 16
17 0.000" 0.000" 0.000" 0.000" 368.7 " 203.5 " 909.1 # 753.1 # 71.76 & 22.18 & 4.901& 0.378& 17
18 0.000" 0.000" 0.000" 0.000" 163.7 " 170.0 " 786.4 # 364.2 # 64.98 & 19.89 & 4.685& 0.334& 18
19 0.000" 0.000" 0.000" 0.000" 56.67 " 149.2 " 486.7 # 280.0 & 62.32 & 17.62 & 5.435& 0.237& 19
20 0.000" 0.000" 0.000" 0.000" 30.97 " 483.5 " 771.5 # 225.1 & 57.35 & 15.26 & 4.334& 0.238& 20
21 0.000" 0.000" 0.000" 0.000" 24.54 " 497.7 " 509.5 # 214.6 & 52.08 & 13.86 & 2.585& 0.259& 21
22 0.000" 0.000" 0.000" 15.28 " 22.09 " 453.3 " 968.3 # 214.3 & 48.35 & 12.60 & 2.095& 0.256& 22
23 0.000" 0.000" 0.000" 22.92 " 267.0 " 397.9 " 700.1 # 273.3 & 47.01 & 12.01 $ 2.670& 0.108& 23
24 0.000" 0.000" 0.000" 10.18 " 567.2 " 239.0 " 431.7 # 824.2 # 51.58 & 11.21 $ 3.551& 0.172& 24
25 0.000" 0.000" 0.000" 6.581" 254.0 " 513.1 # 313.7 &1226 # 57.99 & 10.68 $ 3.510& 0.203& 25
26 0.000" 0.000" 0.000" 5.275" 132.7 "2533 & 408.2 &1242 # 54.05 & 11.27 $ 3.545& 0.205& 26
27 0.000" 0.000" 0.000" 4.762" 296.6 "1782 #2743 & 794.9 # 49.02 & 11.20 $ 3.852& 0.239& 27
28 0.000" 0.000" 0.000" 4.611" 762.8 " 957.6 #2347 & 479.6 # 44.85 & 10.77 & 3.755& 0.247& 28
29 0.000" 0.000" 4.206" 466.2 " 642.1 #1651 # 386.7 # 40.52 & 10.12 & 2.951& 0.255& 29
30 0.000" 0.000" 4.047" 253.1 " 429.2 #1188 # 297.1 & 38.01 & 8.820& 2.390& 0.274& 30
31 0.000" 0.000" 170.7 " 704.3 # 257.5 & 8.022& 0.251& 31
Mean 0.000" 0.000" 0.000" 2.595" 139.2 " 570.9 & 701.0 & 472.6 & 166.1 & 39.21 & 4.455& 1.010&
Median 0.000" 0.000" 0.000" 0.000" 36.86 " 465.1 & 495.0 & 335.4 & 79.19 & 24.94 & 4.212& 0.355&
Maximum 0.000" 0.000" 0.000" 22.92 " 762.8 "2533 &2743 &1242 & 998.3 & 164.7 & 8.135& 8.302&
Minimum 0.000" 0.000" 0.000" 0.000" 4.150" 121.0 & 215.1 & 196.6 & 38.01 & 8.022& 2.095& 0.108&
Total 0.00" 0.00" 0.00" 77.86" 4315 "17128 &21732 &14651 & 4983 & 1216 & 133.7 & 31.30&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 176.1 & " ... Relative Uncertainty +/-10%
Ann. Median 7.783& # ... Relative Uncertainty +/-15%
Annual Total 64268 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 2743 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan Year 1968
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 0.246& 0.000& 0.000& 0.000& 4.286& 21.53 &1371 & 957.8 & 221.5 & 149.1 & 27.81 & 0.090& 1
2 0.005& 0.007& 0.000& 0.000& 5.040& 18.50 & 579.8 & 617.3 & 343.3 & 122.1 & 25.02 & 0.091& 2
3 0.003& 0.009& 0.000& 0.000& 4.993& 20.97 & 406.0 & 529.1 & 364.6 & 103.6 & 23.29 & 0.097& 3
4 0.001& 0.005& 0.000& 0.000& 3.464& 33.85 & 260.2 & 341.0 & 270.7 & 101.7 & 22.24 & 0.101& 4
5 0.001& 0.000& 0.000& 0.000& 2.710& 28.74 & 211.1 & 240.6 & 255.1 & 242.8 & 21.40 & 0.099& 5
6 0.001& 0.000& 0.000& 0.000& 2.531& 21.61 & 219.4 & 325.3 & 171.7 & 345.2 & 19.90 & 0.104& 6
7 0.003& 0.001& 0.000& 0.000& 3.246& 19.06 & 512.6 & 754.6 & 132.5 & 207.3 & 18.66 & 0.108& 7
8 0.003& 0.004& 0.000& 0.000& 4.058& 23.05 & 495.5 & 704.3 & 109.9 & 143.3 & 18.54 & 0.110& 8
9 0.002& 0.004& 0.000& 0.000& 6.743& 28.88 & 235.2 & 416.4 & 115.2 & 113.9 & 17.30 & 0.129& 9
10 0.002& 0.000& 0.000& 2.223& 8.883& 32.84 & 175.7 & 439.4 & 850.4 & 93.08 & 17.40 & 0.148& 10
11 0.001& 0.000& 0.000& 1.592& 6.569& 33.75 & 142.2 & 718.8 &2061 & 78.70 & 16.15 & 0.144& 11
12 0.001& 0.000& 0.000& 2.009& 6.182& 76.29 & 120.2 & 424.1 &1319 & 64.34 & 15.49 & 0.141& 12
13 0.001& 0.000& 0.000& 1.680& 5.258& 653.9 & 104.6 & 276.6 &1184 & 53.73 & 13.87 & 0.137& 13
14 0.000& 0.000& 0.000& 1.295& 15.30 & 446.5 & 97.85 & 211.3 &1133 & 59.13 & 12.13 $ 0.127& 14
15 0.000& 0.000& 0.000& 1.530& 19.56 & 194.6 & 594.0 & 164.7 & 658.0 & 129.4 & 10.23 & 0.123& 15
16 0.000& 0.000& 0.000& 1.850& 13.31 & 117.9 & 714.1 & 145.5 & 343.7 & 118.8 & 8.780& 0.121& 16
17 0.001& 0.000& 0.000& 2.591& 8.604& 123.7 & 388.8 & 360.0 & 244.7 & 93.47 & 8.481& 0.128& 17
18 0.001& 0.000& 0.000& 11.08 & 6.177& 181.5 & 231.4 & 640.7 & 437.9 & 70.08 & 11.43 & 0.127& 18
19 0.001& 0.000& 0.000& 8.629& 4.893& 171.8 & 160.6 & 649.9 & 532.3 & 60.88 & 15.88 & 0.132& 19
20 0.000& 0.000& 0.000& 3.538& 4.477& 109.6 & 128.8 & 401.3 & 278.3 & 62.06 & 13.42 & 0.129& 20
21 0.000& 0.000& 0.000& 2.458& 4.504& 81.29 & 105.6 & 261.4 & 208.5 & 78.74 & 11.47 $ 0.129& 21
22 0.000& 0.000& 0.000& 2.065& 4.797& 69.73 & 91.49 & 203.7 & 226.1 & 61.67 & 9.383& 0.156& 22
23 0.000& 0.000& 0.000& 1.969& 4.082& 66.30 & 109.0 & 223.3 & 329.9 & 50.28 & 7.500& 0.278& 23
24 0.000& 0.000& 0.000& 2.111& 3.957& 88.89 & 350.8 & 380.3 & 257.8 & 44.95 & 7.814& 0.581& 24
25 0.000& 0.000& 0.000& 2.476& 3.788& 244.4 & 295.6 & 366.2 & 172.8 & 40.38 & 8.255& 0.486& 25
26 0.000& 0.000& 0.000& 3.883& 3.467& 447.7 & 610.5 & 357.8 & 139.6 & 35.84 & 4.482& 0.208& 26
27 0.000& 0.000& 0.000& 3.840& 3.678& 462.1 &1567 & 645.4 & 153.8 & 32.43 & 0.125& 0.107& 27
28 0.000& 0.000& 0.000& 3.517& 4.351& 394.5 &1032 &1009 & 237.1 & 35.34 & 1.122& 0.102& 28
29 0.008& 0.000& 0.000& 3.197& 4.433& 576.0 &1699 & 657.2 & 231.8 & 35.56 & 2.199& 0.101& 29
30 0.007& 0.000& 3.341& 8.278&1749 &2046 & 329.8 & 206.9 & 32.96 & 0.054& 0.103& 30
31 0.001& 0.000& 18.63 & 1215 & 224.6 & 31.79 & 0.092& 31
Mean 0.009& 0.001& 0.000& 2.229& 6.460& 218.0 & 524.9 & 450.9 & 439.7 & 93.31 & 12.99 & 0.152&
Median 0.001& 0.000& 0.000& 1.989& 4.797& 85.09 & 295.6 & 380.3 & 256.5 & 70.08 & 12.78 & 0.127&
Maximum 0.246& 0.009& 0.000& 11.08 & 19.56 &1749 &2046 &1009 &2061 & 345.2 & 27.81 & 0.581&
Minimum 0.000& 0.000& 0.000& 0.000& 2.531& 18.50 & 91.49 & 145.5 & 109.9 & 31.79 & 0.054& 0.090&
Total 0.29& 0.03& 0.00& 66.87& 200.3 & 6539 &16271 &13977 &13191 & 2893 & 389.8 & 4.73&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 146.3 & $ ... Relative Uncertainty +/-20%
Ann. Median 8.379& & ... Relative Uncertainty +/-30%
Annual Total 53532 &
Maximum Minimum
Daily 2061 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan Year 1969
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 0.089& 0.038& 0.000& 0.000& 0.626& 5.928& 128.9 & 86.29 & 30.75 & 9.111& 0.092& 0.004& 1
2 0.093& 0.030& 0.000& 0.000& 0.643& 5.587$ 97.03 & 105.9 & 29.79 & 7.520& 0.110& 0.004& 2
3 0.068& 0.031& 0.000& 0.000& 0.621& 5.299& 238.2 & 127.2 & 27.44 & 3.983& 3.873& 0.003& 3
4 0.049& 0.034& 0.000& 0.000& 0.593& 4.797& 143.3 & 116.1 & 23.96 & 5.202& 5.392& 0.000& 4
5 0.030& 0.033& 0.000& 0.000& 0.593& 5.230& 93.68 & 145.6 & 23.35 & 4.990$ 8.128& 0.000& 5
6 0.036& 0.036& 0.000& 0.000& 0.535& 7.158& 75.64 & 196.7 & 21.72 & 2.922& 6.614& 0.000& 6
7 0.029& 0.044& 0.000& 0.000& 0.378& 9.531& 63.45 & 124.8 & 17.98 & 0.080& 2.891& 0.000& 7
8 0.032& 0.023& 0.000& 0.000& 0.647& 10.82 & 56.09 & 91.66 & 16.23 & 0.099& 1.261& 0.000& 8
9 0.029& 0.019& 0.000& 0.012& 2.288& 14.82 & 52.96 & 75.68 & 15.49 & 0.226& 0.516& 0.000& 9
10 0.025& 0.020& 0.000& 0.071& 4.126& 19.78 & 135.7 & 70.08 & 14.69 & 4.275& 0.108& 0.000& 10
11 0.026& 0.014& 0.000& 0.049& 4.080& 63.75 & 200.2 & 94.47 & 13.10 & 0.375& 0.107& 0.000& 11
12 0.025& 0.003& 0.000& 0.019& 2.466& 66.12 & 110.4 & 89.24 & 13.37 & 14.11 & 0.115& 0.000& 12
13 0.023& 0.000& 0.000& 0.011& 1.859& 49.66 & 84.38 & 68.99 & 12.42 & 0.106& 0.108& 0.000& 13
14 0.027& 0.000& 0.000& 0.006& 1.487& 279.6 & 79.31 & 56.18 & 10.89 & 0.109& 0.105& 0.000& 14
15 0.066& 0.000& 0.000& 0.012& 1.318& 143.2 & 85.93 & 49.18 & 9.858& 4.169& 0.106& 0.000& 15
16 0.062& 0.000& 0.000& 0.021& 1.255& 346.2 & 77.97 & 45.10 & 9.112& 0.307& 0.101& 0.000& 16
17 0.060& 0.000& 0.000& 0.024& 2.003& 128.6 & 187.5 & 42.10 & 7.970& 0.533& 0.081& 0.000& 17
18 0.049& 0.000& 0.000& 0.022& 51.53 & 76.37 & 392.6 & 39.80 & 5.459& 0.835& 0.085& 0.000& 18
19 0.048& 0.000& 0.000& 0.023& 75.12 & 59.19 & 169.8 & 37.19 & 0.138& 0.862& 0.098& 0.000& 19
20 0.041& 0.000& 0.000& 0.023& 47.53 & 50.70 & 113.3 & 33.92 & 2.064& 0.515& 0.097& 0.000& 20
21 0.031& 0.000& 0.000& 0.018& 22.41 & 55.18 & 86.61 & 33.06 & 3.155& 0.172& 0.063& 0.000& 21
22 0.031& 0.000& 0.000& 0.014& 15.05 & 58.48 & 70.79 & 39.83 & 2.058& 0.309& 0.059& 0.000& 22
23 0.030& 0.000& 0.000& 0.049& 13.88 & 45.34 & 62.13 & 37.59 & 5.117& 0.586& 0.040& 0.000& 23
24 0.032& 0.000& 0.000& 17.82 & 11.48 & 39.93 & 55.67 & 38.74 & 4.664& 0.475& 0.075& 0.000& 24
25 0.026& 0.000& 0.000& 11.37 & 9.329& 36.83 & 50.43 & 57.55 & 6.474& 0.705& 0.002& 0.000& 25
26 0.020& 0.000& 0.000& 2.588& 8.361& 34.38 & 125.1 & 63.08 & 7.913& 0.730& 0.001& 0.000& 26
27 0.029& 0.000& 0.000& 1.308& 9.734& 42.57 & 823.3 & 48.17 & 10.73 & 0.710& 0.096& 0.000& 27
28 0.050& 0.000& 0.000& 0.994& 11.75 & 377.8 & 374.3 & 38.84 & 13.38 & 0.133& 0.005& 0.000& 28
29 0.060& 0.000& 0.838& 10.72 & 349.9 & 143.6 & 33.38 & 11.93 & 0.136& 0.007& 0.000& 29
30 0.063& 0.000& 0.756& 7.713& 159.9 & 110.8 & 31.74 & 10.34 & 0.133& 0.006& 0.000& 30
31 0.045& 0.000& 6.712& 90.68 & 30.18 & 0.134& 0.000& 31
Mean 0.043& 0.012& 0.000& 1.202& 10.54 & 85.09 & 147.7 & 69.30 & 12.72 & 2.082& 1.011& 0.000&
Median 0.032& 0.000& 0.000& 0.020& 4.080& 47.50 & 97.03 & 56.18 & 11.41 & 0.533& 0.100& 0.000&
Maximum 0.093& 0.044& 0.000& 17.82 & 75.12 & 377.8 & 823.3 & 196.7 & 30.75 & 14.11 & 8.128& 0.004&
Minimum 0.020& 0.000& 0.000& 0.000& 0.378& 4.797& 50.43 & 30.18 & 0.138& 0.080& 0.001& 0.000&
Total 1.326& 0.325& 0.000& 36.05 & 326.8 &2553 &4580 &2148 & 381.5 & 64.56 & 30.34 & 0.010&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 27.73 & $ ... Relative Uncertainty +/-20%
Ann. Median 0.475& & ... Relative Uncertainty +/-30%
Annual Total 10122 &
Maximum Minimum
Daily 823.3 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan Year 1970
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& 2.219& [ ] 260.2 & 477.0 & 66.34 # 60.53 # 1.514& 0.030& 1
2 0.000& 0.000& 0.000& 0.000& 3.447& [ ] 233.7 & 325.2 & 66.48 # 58.56 # 1.391& 0.002& 2
3 0.000& 0.000& 0.000& 0.000& 2.277& [ ] 284.5 & 414.4 & 72.98 # 76.20 # 1.888& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 1.985& [ ] 199.2 & 272.6 & 66.60 # 239.1 & 6.020& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 1.865& [ ] 171.4 & 159.2 & 62.07 # 254.9 & 10.09 & 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 2.304& [ ] 208.8 & 117.2 & 64.64 # 145.1 & 8.024& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 1.606& [ ] 252.1 & 95.28 & 192.7 & 134.5 & 3.936& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 2.174& [ ] 153.4 & 113.0 & 406.1 & 89.46 & 2.394& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 8.108& [ ] 117.2 & 132.3 & 173.2 & 72.39 # 1.940& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 13.39 & 27.10 & 99.09 & 114.8 & 99.82 & 59.36 # 1.700& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 7.383& 118.8 & 82.91 & 100.7 & 80.62 # 48.95 # 0.756& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 7.760& 143.7 & 64.64 & 86.88 # 70.62 # 41.96 # 0.117& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 20.64 & 87.62 & 55.24 & 77.88 # 65.73 # 34.81 # 0.106& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 18.60 & 107.2 & 52.25 & 69.17 # 64.10 # 27.52 # 0.103& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 12.09 & 81.58 & 47.50 & 60.52 # 63.78 # 25.47 # 0.102& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 9.163& [ ] 43.76 & 57.42 # 55.96 # 23.17 & 0.102& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 7.094& [ ] 44.31 & 53.75 # 50.26 # 18.68 & 0.102& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 5.856$ [ ] 42.37 & 78.86 # 44.49 # 14.37 & 0.107& [ ] 18
19 0.000& 0.000& 0.000& 0.000& 5.708$ [ ] 35.36 $ 130.9 & 43.55 # 10.21 & 0.107& [ ] 19
20 0.000& 0.000& 0.000& 0.000& 4.932$ 188.0 & 31.30 $ 184.6 & 55.18 # 8.381& 0.106& [ ] 20
21 0.000& 0.000& 0.000& 0.052& 4.876$ 139.8 & 29.85 $ 229.6 & 86.79 & 7.336& 0.106& [ ] 21
22 0.000& 0.000& 0.000& 0.076& 4.197& 267.4 & 34.18 & 138.7 & 118.8 & 6.001& 0.281& [ ] 22
23 0.000& 0.000& 0.000& 0.901& 4.051& 730.1 & 427.0 & 101.1 & 94.49 & 4.092& 0.143& [ ] 23
24 0.000& 0.000& 0.000& 1.169& 5.548$ 995.7 &1043 & 104.6 & 111.1 & 3.395& 0.090& [ ] 24
25 0.000& 0.000& 0.000& 1.033& [ ] 711.2 & 853.6 & 274.7 & 141.9 & 2.546& 2.224& [ ] 25
26 0.000& 0.000& 0.000& 1.202& [ ] 304.3 & 618.6 & 243.2 & 167.4 & 2.387& 0.268& [ ] 26
27 0.000& 0.000& 0.000& 0.892& [ ] 373.2 & 581.5 & 156.3 & 126.3 & 2.590& 0.096& [ ] 27
28 0.000& 0.000& 0.000& 0.971& [ ] 328.2 & 402.3 & 123.1 & 95.65 & 4.491& 0.095& [ ] 28
29 0.000& 0.000& 1.204& [ ] 371.0 & 232.2 & 108.8 & 81.36 # 3.250& 0.097& [ ] 29
30 0.000& 0.000& 1.537& [ ] 337.6 & 226.4 & 89.95 # 70.03 # 2.035& 0.055& [ ] 30
31 0.000& 0.000& [ ] 393.9 & 76.11 # 1.629& [ ] 31
Mean 0.000& 0.000& 0.000& 0.301& 6.553& 312.5 & 236.2 & 153.8 & 98.64 & 47.85 & 1.469& 0.002&
Median 0.000& 0.000& 0.000& 0.000& 5.240& 267.4 & 171.4 & 114.8 & 71.80 & 23.17 & 0.130& 0.000&
Maximum 0.000& 0.000& 0.000& 1.537& 20.64 & 995.7 &1043 & 477.0 & 406.1 & 254.9 & 10.09 & 0.030&
Minimum 0.000& 0.000& 0.000& 0.000& 1.606& 27.10 & 29.85 & 53.75 & 43.55 & 1.629& 0.055& 0.000&
Total 0.000& 0.000& 0.000& 9.038& 157.3 &5313 &7321 &4768 &2959 &1483 & 44.06 & 0.032&
Missing Days 0 0 0 0 7 13 0 0 0 0 0 14
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 66.63 & # ... Relative Uncertainty +/-15%
Ann. Median 2.035& $ ... Relative Uncertainty +/-20%
Annual Total 22054 & & ... Relative Uncertainty +/-30%
Missing Days 34 [ ... Not Available
Maximum Minimum
Daily 1043 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan Year 1971
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& 0.104& 0.085& 0.104& 39.09 # 24.40 & 127.8 & 30.13 & 574.8 & 19.42 & 0.615& 1
2 [ ] 0.000& 0.102& 0.096& 0.105& 16.09 & 22.76 & 124.1 & 27.37 & 138.9 & 18.11 & 0.558& 2
3 [ ] 0.000& 0.100& 0.087& 0.105& 7.692& 70.02 & 131.7 & 25.45 & 80.87 & 17.78 & 0.647& 3
4 [ ] 0.000& 0.103& 0.089& 0.103& 9.338& 77.07 & 138.8 & 26.13 & 69.67 & 17.10 & 0.655& 4
5 [ ] 0.000& 0.103& 0.100& 0.092& 26.89 & 39.49 # 95.67 & 46.95 & 328.9 & 16.52 & 0.648& 5
6 [ ] 0.000& 0.104& 0.101& 0.102& 52.97 # 27.87 # 65.01 # 64.85 & 363.5 & 15.62 & 0.661& 6
7 0.094& 0.000& 0.071& 0.100& 0.101& 64.53 # 21.27 & 52.23 # 45.81 & 372.5 & 14.32 & 0.434& 7
8 0.029& 0.000& 0.056& 0.054& 0.103& 62.79 # 18.04 & 49.50 # 96.08 & 482.9 & 13.47 & 0.293& 8
9 0.000& 0.000& 0.066& 0.015& 0.103& 81.57 & 13.24 & 50.98 # 123.5 & 239.4 & 12.43 & 0.520& 9
10 0.000& 0.000& 0.052& 0.047& 0.102& 86.48 & 10.91 & 40.96 # 70.66 & 106.9 & 12.21 & 0.256& 10
11 0.000& 0.000& 0.058& 0.089& 0.100& 46.84 # 9.135& 34.24 # 42.42 & 75.07 & 16.31 & 0.099& 11
12 0.000& 0.051& 0.055& 0.097& 0.098& 34.03 # 10.45 & 31.65 # 33.00 & 56.85 $ 16.23 & 0.049& 12
13 0.000& 0.084& 0.046& 0.101& 0.117& 26.56 # 15.20 & 38.42 # 49.72 & 50.60 & 14.01 & 0.062& 13
14 0.000& 0.094& 0.029& 0.084& 0.139& 19.20 & 61.00 & 45.14 # 73.12 & 56.23 $ 12.95 & 0.069& 14
15 0.000& 0.101& 0.073& 0.103& 1.638& 16.36 & 71.34 # 420.7 & 51.74 & 58.44 & 12.15 & 0.062& 15
16 0.000& 0.196& 0.090& 0.102& 1.456& 13.46 & 46.13 # 557.4 & 41.46 & 45.61 & 12.35 & 0.208& 16
17 0.000& 0.098& 0.093& 0.103& 1.069& 13.21 & 43.20 # 270.2 & 70.27 & 41.28 & 13.99 & 0.261& 17
18 0.029& 0.073& 0.094& 0.104& 1.397& 22.88 & 51.11 # 140.5 & 136.6 & 38.07 & 13.34 & 0.238& 18
19 0.061& 0.083& 0.093& 0.090& 1.667& 18.68 & 40.50 # 103.3 & 593.0 & 38.29 & 11.88 & 0.197& 19
20 0.064& 0.087& 0.088& 0.100& 3.557& 16.94 & 31.82 # 85.17 # 602.5 & 84.50 & 11.24 & 0.058& 20
21 0.036& 0.085& 0.086& 0.100& 10.95 & 67.81 # 38.23 # 67.74 # 305.3 & 425.3 & 10.47 & 0.032& 21
22 0.000& 0.087& 0.086& 0.100& 10.07 & 46.04 # 29.83 # 59.62 # 217.5 & 335.9 & 10.70 & 0.016& 22
23 0.000& 0.079& 0.082& 0.101& 20.84 & 26.05 # 20.90 & 51.98 # 141.8 & 89.95 & 11.57 & 0.012& 23
24 0.000& 0.073& 0.080& 0.101& 19.32 & 19.78 & 83.16 & 41.93 # 470.6 & 56.71 & 12.03 & 0.000& 24
25 0.000& 0.085& 0.072& 0.099& 7.284& 17.12 & 213.0 & 34.41 # 548.5 & 41.32 & 11.30 & 0.001& 25
26 0.000& 0.086& 0.105& 0.102& 3.755& 14.73 & 85.93 & 60.04 & 267.7 & 34.41 & 11.31 & 0.008& 26
27 0.000& 0.092& 0.110& 0.101& 2.675& 13.46 & 51.30 # 112.8 & 141.2 & 29.97 & 9.631& 0.028& 27
28 0.000& 0.159& 0.133& 0.101& 3.646& 13.88 & 49.74 # 74.26 # 101.0 & 26.71 & 5.805& 0.066& 28
29 0.000& 0.108& 0.102& 3.158& 10.16 & 96.92 & 51.07 # 107.0 & 24.76 & 3.031& 0.063& 29
30 0.000& 0.099& 0.103& 3.235& 10.88 & 152.1 & [ ] 770.5 & 23.04 & 0.799& 0.004& 30
31 0.000& 0.091& 24.52 & 165.6 & 34.47 & 21.27 & 0.000& 31
Mean 0.013& 0.058& 0.085& 0.092& 3.926& 30.52 & 54.57 & 106.4 & 177.4 & 142.3 & 12.60 & 0.220&
Median 0.000& 0.076& 0.090& 0.100& 1.397& 19.49 & 40.50 & 62.52 & 84.60 & 58.44 & 12.39 & 0.069&
Maximum 0.094& 0.196& 0.133& 0.104& 24.52 & 86.48 & 213.0 & 557.4 & 770.5 & 574.8 & 19.42 & 0.661&
Minimum 0.000& 0.000& 0.029& 0.015& 0.092& 7.692& 9.135& 31.65 & 25.45 & 21.27 & 0.799& 0.000&
Total 0.313& 1.613& 2.631& 2.759& 121.7 & 915.5 &1692 &3192 &5322 &4413 & 378.1 & 6.819&
Missing Days 6 0 0 0 0 0 0 1 0 0 0 0
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 44.83 & # ... Relative Uncertainty +/-15%
Ann. Median 10.12 & $ ... Relative Uncertainty +/-20%
Annual Total 16048 & & ... Relative Uncertainty +/-30%
Missing Days 7 [ ... Not Available
Maximum Minimum
Daily 770.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan Year 1972
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& 0.192& 0.000& 0.578& 0.744& 0.914& 16.87 & 143.0 & 101.6 & 20.06 & 4.135& 0.000& 1
2 0.000& 0.099& 0.000& 0.586& 0.678& 0.864& 63.18 & 134.6 & 85.44 & 35.09 & 3.515& 0.000& 2
3 0.000& 0.031& 0.000& 0.580& 0.636& 0.831& 124.8 & 411.5 & 76.78 $ 44.95 & 3.441& 0.000& 3
4 0.000& 0.033& 0.000& 0.658& 0.672& 0.829& 66.02 & 486.9 & 124.6 & 30.93 & 3.345& 0.000& 4
5 0.000& [ ] 0.000& 0.668& 0.647& 0.802& 34.24 & 305.9 & 195.5 & 22.79 & 3.353& 0.000& 5
6 0.000& [ ] 0.000& 0.701& 0.632& 0.806& 24.58 & 167.1 & 151.5 & 19.34 & 2.234& 0.000& 6
7 0.000& [ ] 0.000& 0.455& 0.391& 0.809& 21.06 & 276.1 & 131.7 & 18.22 & 0.449& 0.000& 7
8 0.000& [ ] 0.000& 0.287& 0.304& 0.813& 53.35 & 186.0 & 88.37 & 31.84 & 0.034& 0.000& 8
9 0.000& [ ] 0.000& 0.668& 0.678& 0.816& 70.65 & 102.6 & 66.54 $ 44.52 & 0.075& 0.000& 9
10 0.000& [ ] 0.000& 0.668& 0.418& 0.820& 39.19 & 75.71 & 56.68 $ 30.17 & 0.093& 0.000& 10
11 0.000& [ ] 0.000& 0.633& 0.675& 0.801& 31.36 & 57.55 & 72.48 & 21.07 & 0.098& [ ] 11
12 0.000& [ ] 0.000& 0.633& 0.707& 3.691& 29.98 & 45.85 & 85.54 & 16.94 & 0.277& [ ] 12
13 0.000& [ ] 0.000& 0.657& 0.802& 4.126& 30.49 & 39.38 & 58.28 & 14.83 & 0.442& [ ] 13
14 0.000& [ ] 0.000& 0.681& 0.862& 94.89 & 48.55 & 34.77 & 47.24 & 13.15 & 0.544& [ ] 14
15 0.000& [ ] 0.000& 0.570& 0.827& 32.75 & 44.09 & 31.63 & 50.38 & 10.91 & 0.609& [ ] 15
16 0.000& [ ] 0.000& 0.538& 0.787& 15.52 & 30.19 & 192.7 & 63.55 & 8.855& 0.308& [ ] 16
17 0.000& [ ] 0.000& 0.526& 0.763& 11.72 & 24.14 & 802.6 & 219.8 & 8.234& 0.053& [ ] 17
18 0.000& [ ] 0.000& 0.716& 0.679& 10.46 & 62.83 & 901.4 & 121.1 & 7.568& 0.088& [ ] 18
19 0.000& [ ] 0.000& 0.894& 0.446& 10.52 & 82.32 & 947.9 & 65.64 & 6.858& 0.099& [ ] 19
20 0.018& [ ] 0.000& 0.878& 0.623& 10.16 & 50.61 & 853.7 & 47.49 & 6.966& 0.138& [ ] 20
21 0.256& [ ] 0.056& 0.842& 0.620& 11.57 & 36.85 & 675.6 & 38.80 & 6.974& 0.082& [ ] 21
22 0.127& 0.000& 0.365& 0.869& 0.677& 32.07 & 33.51 & 432.6 & 33.62 & 7.315& 0.000& [ ] 22
23 0.000& 0.000& 0.417& 0.870& 0.613& 21.55 & 466.6 & 537.3 & 31.02 & 6.518& 0.000& [ ] 23
24 0.000& 0.000& 0.530& 0.767& 0.352& 34.21 & 311.6 & 436.2 & 28.40 & 5.597& 0.000& [ ] 24
25 0.070& 0.000& 0.539& 0.667& 0.269& 140.4 & 102.9 & 605.2 & 24.72 & 4.271& 0.000& [ ] 25
26 0.244& 0.000& 0.482& 0.734& 0.189& 60.63 & 63.14 $ 453.9 & 22.55 & 3.431& 0.000& [ ] 26
27 0.298& 0.000& 0.476& 0.733& 0.111& 34.19 & 242.4 & 528.9 & 20.96 & 3.412& 0.000& [ ] 27
28 0.434& 0.000& 0.534& 0.625& 0.105& 38.07 & 196.6 & 620.8 & 18.98 & 3.804& 0.000& [ ] 28
29 0.445& 0.000& 0.573& 0.705& 0.388& 26.61 & 88.85 & 329.4 & 18.27 & 6.584& 0.000& [ ] 29
30 0.318& 0.574& 0.732& 0.717& 18.67 & 115.7 & 191.2 & 18.17 & 7.105& 0.000& [ ] 30
31 0.215& 0.580& 0.965& 247.7 & 131.5 & 5.272& [ ] 31
Mean 0.078& 0.030& 0.165& 0.671& 0.580& 20.70 & 92.08 & 359.3 & 72.19 & 15.28 & 0.780& 0.000&
Median 0.000& 0.000& 0.000& 0.668& 0.647& 10.49 & 53.35 & 305.9 & 60.91 & 8.855& 0.096& 0.000&
Maximum 0.445& 0.192& 0.580& 0.894& 0.965& 140.4 & 466.6 & 947.9 & 219.8 & 44.95 & 4.135& 0.000&
Minimum 0.000& 0.000& 0.000& 0.287& 0.105& 0.801& 16.87 & 31.63 & 18.17 & 3.412& 0.000& 0.000&
Total 2.42& 0.35& 5.13& 20.12& 17.98& 620.9 & 2854 &11139 & 2166 & 473.5 & 23.41& 0.00&
Missing Days 0 17 0 0 0 0 0 0 0 0 0 21
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 52.82 & $ ... Relative Uncertainty +/-20%
Ann. Median 0.807& & ... Relative Uncertainty +/-30%
Annual Total 17323 & [ ... Not Available
Missing Days 38
Maximum Minimum
Daily 947.9 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan Year 1973
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& 0.536& 1.061& 45.44 & 152.3 & 285.3 & 124.5 & 23.35 & 0.653& 1
2 [ ] 0.000& 0.000& 0.000& 0.636& 4.972& 39.25 & 112.4 & 457.6 & 97.97 & 21.73 & 0.689& 2
3 [ ] 0.000& 0.000& 0.000& 0.683& 4.145& 38.00 & 91.40 & 395.3 & 80.07 & 21.12 & 0.637& 3
4 [ ] 0.000& 0.000& 0.000& 0.654& 3.606& 32.91 & 391.5 & 212.5 & 70.68 & 19.01 & 0.689& 4
5 [ ] 0.000& 0.000& 0.000& 0.585& 3.584& 26.27 &1017 & 134.8 & 63.34 & 24.68 & 0.415& 5
6 [ ] 0.000& 0.000& 0.000& 0.623& 8.433& 57.59 &1471 & 99.33 & 56.19 & 21.34 & 0.405& 6
7 [ ] 0.000& 0.000& 0.000& 0.575& 25.41 & 393.9 &1204 & 187.6 & 50.80 & 17.16 & 0.358& 7
8 [ ] 0.000& 0.000& 0.000& 0.732& 35.68 & 226.9 & 763.5 & 912.6 & 45.44 & 14.69 & 0.253& 8
9 [ ] 0.000& 0.000& 0.000& 0.588& 39.02 & 157.8 & 446.5 & 567.3 & 41.75 & 13.60 & 0.297& 9
10 [ ] 0.000& 0.000& 0.002& 0.639& 201.7 & 119.7 & 441.0 & 843.5 & 38.80 & 13.40 & 0.234& 10
11 [ ] 0.000& 0.000& 0.000& 0.642& 81.05 & 69.31 & 644.5 &1716 # 35.20 & 13.27 & 0.314& 11
12 [ ] 0.000& 0.000& 0.000& 0.793& 191.3 & 53.23 & 486.7 &1253 & 31.90 & 12.51 & 0.228& 12
13 [ ] 0.000& 0.000& 0.113& 0.814& 228.9 & 72.25 & 504.9 & 508.2 & 29.39 & 11.34 & 0.213& 13
14 [ ] 0.000& 0.000& 0.142& 0.740& 66.40 & 229.2 & 479.9 & 300.7 & 36.58 & 10.30 & 0.192& 14
15 [ ] 0.000& 0.000& 0.000& 0.719& 35.14 & 677.1 & 831.4 & 423.9 & 48.07 & 9.555& 0.174& 15
16 [ ] 0.000& 0.000& 0.104& 0.704& 25.68 & 303.9 & 665.6 & 503.8 & 37.79 & 9.543& 0.162& 16
17 [ ] 0.000& 0.000& 0.300& 0.701& 22.94 & 159.3 & 298.2 & 349.4 & 53.90 & 8.697& 0.064& 17
18 [ ] 0.000& 0.000& 0.327& 0.758& 22.84 &1468 & 193.7 & 408.4 & 53.47 & 7.723& 0.361& 18
19 [ ] 0.000& 0.000& 0.321& 0.747& 34.30 &1062 & 185.8 & 251.7 & 40.35 & 6.916& 0.499& 19
20 0.000& 0.000& 0.000& 0.172& 0.825& 88.03 & 440.2 & 399.8 & 165.6 & 32.68 & 5.662& 0.340& 20
21 0.000& 0.000& 0.000& 0.019& 1.026& 80.84 & 435.9 & 338.2 & 132.5 & 27.98 & 4.801& 0.235& 21
22 0.000& 0.000& 0.000& 0.171& 0.965& 193.6 & 565.0 & 282.2 & 138.5 & 24.96 & 4.105& 0.234& 22
23 0.000& 0.000& 0.000& 0.411& 0.908& 252.9 & 228.8 & 187.1 & 188.8 & 22.69 & 3.536& 0.213& 23
24 0.000& 0.000& 0.000& 0.506& 0.983& 134.1 &1124 & 145.3 & 370.3 & 24.79 & 3.069& 0.077& 24
25 0.000& 0.000& 0.000& 0.786& 0.938& 75.59 &1637 & 116.9 & 898.8 & 31.90 & 2.556& 0.008& 25
26 0.000& 0.000& 0.000& 0.552& 0.894& 47.69 & 688.2 & 95.47 & 646.9 & 27.63 & 2.061& 0.002& 26
27 0.000& 0.000& 0.000& 0.523& 0.956& 37.11 & 394.2 & 85.04 & 326.5 & 22.81 & 1.405& 0.303& 27
28 0.000& 0.000& 0.000& 0.742& 0.977& 32.03 & 577.4 & 77.26 & 211.3 & 20.02 & 1.343& 0.642& 28
29 0.000& 0.000& 0.571& 1.065& 34.39 & 451.6 & 71.68 & 175.8 & 20.32 & 1.114& 0.616& 29
30 0.000& 0.000& 0.541& 1.033& 41.45 & 306.6 & 99.58 & 173.7 & 22.97 & 0.570& 0.402& 30
31 0.000& 0.000& 1.067& 213.7 & 234.0 & 25.05 & 0.264& 31
Mean 0.000& 0.000& 0.000& 0.210& 0.791& 68.46 & 396.6 & 403.7 & 441.3 & 43.23 & 10.34 & 0.328&
Median 0.000& 0.000& 0.000& 0.108& 0.747& 36.39 & 229.2 & 298.2 & 337.9 & 36.58 & 9.549& 0.297&
Maximum 0.000& 0.000& 0.000& 0.786& 1.067& 252.9 &1637 &1471 &1716 & 124.5 & 24.68 & 0.689&
Minimum 0.000& 0.000& 0.000& 0.000& 0.536& 1.061& 26.27 & 71.68 & 99.33 & 20.02 & 0.570& 0.002&
Total 0.00& 0.00& 0.00& 6.30& 24.51& 2054 &12295 &12514 &13240 & 1340 & 310.2 & 10.17&
Missing Days 19 0 0 0 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 120.8 & # ... Relative Uncertainty +/-15%
Ann. Median 3.595& & ... Relative Uncertainty +/-30%
Annual Total 41793 & [ ... Not Available
Missing Days 19
Maximum Minimum
Daily 1716 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan Year 1974
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 0.154& 0.000& 0.000& 0.000& [ ]N 430.9 & 305.4 &3270 & 119.5 # 35.54 # 33.55 # 13.23 B 1
2 0.119& 0.000& 0.000& 0.000& [ ]N 425.2 & 961.5 &2085 & 116.6 # 31.54 # 26.81 & 13.47 B 2
3 0.021& 0.000& 0.000& [ ]N [ ]N 196.4 &1748 &1226 & 106.3 # 29.28 # 23.36 & 13.70 B 3
4 0.000& 0.000& 0.000& [ ]N [ ]N 300.8 &1427 &1208 & 101.7 # 27.95 & 21.02 & 13.92 B 4
5 0.000& 0.000& 0.000& [ ]N [ ]N 506.4 & 763.4 &1642 & 96.31 # 27.51 & 19.19 B 14.17 B 5
6 0.000& 0.000& 0.000& [ ]N [ ]N 320.0 & 441.2 &1157 & 88.25 # 27.75 & 18.06 B 14.41 B 6
7 0.000& 0.000& 0.000& [ ]N [ ]N 181.6 & 304.7 & 803.0 & 77.38 # 75.98 # 17.78 B 14.61 B 7
8 0.000& 0.000& 0.000& [ ]N [ ]N 122.2 & 227.7 & 541.9 & 69.88 # 76.70 # 17.79 B 14.85 B 8
9 0.000& 0.000& 0.000& [ ]N [ ]N 91.48 & 352.1 & 535.0 & 62.86 # 79.14 # 17.71 B 15.05 B 9
10 0.000& 0.000& 0.000& [ ]N [ ]N 74.15 & 368.0 & 523.2 & 57.79 # 63.48 # 17.70 B 15.09 B 10
11 0.000& 0.000& 0.000& [ ]N [ ]N 63.18 & 287.5 & 392.7 & 74.86 # 41.03 # 17.82 B 15.09 B 11
12 0.000& 0.000& 0.000& [ ]N [ ]N 54.76 & 304.5 & 450.3 & 162.3 & 32.34 # 17.69 B 15.09 B 12
13 0.000& 0.000& 0.000& [ ]N [ ]N 46.96 & 648.5 & 799.8 & 148.2 & 28.11 & 196.7 B 15.09 B 13
14 0.000& 0.000& 0.000& [ ]N [ ]N 41.51 & 952.3 & 557.4 & 94.19 # 26.38 & 387.7 & 15.09 B 14
15 0.000& 0.000& 0.000& [ ]N [ ]N 39.10 & 548.0 & 348.0 & 74.53 # 28.98 & 59.65 # 15.09 B 15
16 0.000& 0.000& 0.000& [ ]N [ ]N 37.19 & 905.1 & 282.1 & 63.85 # 28.35 & 29.30 & 15.09 B 16
17 0.000& 0.000& 0.000& [ ]N [ ]N 34.52 &1406 & 259.2 & 57.26 # 24.83 & 22.71 & 15.09 B 17
18 0.000& 0.000& 0.000& [ ]N [ ]N 32.87 &1364 & 320.4 & 72.77 # 22.26 & 25.78 & 15.09 B 18
19 0.000& 0.000& 0.000& [ ]N [ ]N 32.62 &1189 & 795.8 & 68.87 # 20.23 & 40.99 # 15.09 B 19
20 0.000& 0.000& 0.000& [ ]N [ ]N 30.81 &1186 & 940.9 & 55.89 # 22.45 & 35.35 # 15.09 B 20
21 0.000& 0.000& 0.000& [ ]N [ ]N 28.94 & 737.1 & 643.7 & 47.33 # 44.75 # 26.40 & 15.09 B 21
22 0.000& 0.000& 0.000& [ ]N [ ]N 33.94 & 783.3 & 754.0 & 42.42 # 37.48 # 20.50 B 15.09 B 22
23 0.000& 0.000& 0.000& [ ]N [ ]N 71.28 & 961.2 & 866.5 & 38.70 # 58.79 # 16.60 B 15.09 B 23
24 0.000& 0.000& 0.000& [ ]N [ ]N 146.4 &1113 & 449.5 & 36.01 # 85.46 # 13.99 B 15.09 B 24
25 0.000& 0.000& 0.000& [ ]N 157.1 & 190.9 &1792 & 304.7 & 34.53 # 48.29 # 12.61 B 15.09 B 25
26 0.000& 0.000& 0.000& [ ]N 358.0 & 542.0 &1110 & 236.0 & 35.89 # 33.90 # 12.54 B 15.09 B 26
27 0.000& 0.000& 0.000& [ ]N 439.7 & 727.3 & 667.9 & 191.0 & 36.43 # 27.81 & 12.64 B 15.09 B 27
28 0.000& 0.000& 0.000& [ ]N 224.8 & 721.0 & 465.0 & 165.5 & 32.74 # 24.84 & 12.79 B 15.09 B 28
29 0.000& 0.000& [ ]N 422.7 & 478.8 &1404 & 150.3 # 33.96 # 23.73 & 12.91 B 15.09 B 29
30 0.000& 0.000& [ ]N 329.9 & 283.7 &2469 & 135.9 # 38.75 # 50.78 & 13.01 B 15.09 B 30
31 0.000& 0.000& 315.4 & 2001 & 122.5 # 52.44 # 15.09 B 31
Mean 0.009& 0.000& 0.000& 0.000& 321.1 & 209.6 & 941.7 & 714.8 & 71.53 & 39.94 & 40.02 B 14.82 B
Median 0.000& 0.000& 0.000& 0.000& 329.9 & 106.8 & 905.1 & 535.0 & 66.36 & 31.54 & 18.63 B 15.09 B
Maximum 0.154& 0.000& 0.000& 0.000& 439.7 & 727.3 &2469 &3270 & 162.3 & 85.46 & 387.7 B 15.09 B
Minimum 0.000& 0.000& 0.000& 0.000& 157.1 & 28.94 & 227.7 & 122.5 & 32.74 & 20.23 & 12.54 B 13.23 B
Total 0.29& 0.00& 0.00& 0.00& 2248 & 6287 &29194 &22157 & 2146 & 1238 & 1201 B 459.5 B
Missing Days 0 0 0 28 24 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 207.4 B # ... Relative Uncertainty +/-15%
Ann. Median 27.95 B & ... Relative Uncertainty +/-30%
Annual Total 64930 B B ... Outside measured range
Missing Days 52 N ... Not Rated
Maximum Minimum
Daily 3270 B 0.000B
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 15.09 B 15.09 B 15.09 B 0.000& 0.000& 1.368! 76.02 ! 254.6 ! 82.47 ! 55.78 & 21.96 & 14.93 B 1
2 15.09 B 15.09 B 15.09 B 0.000& 0.000& 8.374! 70.83 ! 229.7 ! 70.82 ! 44.73 & 21.30 & 14.99 B 2
3 15.09 B 15.09 B 15.09 B 0.000& 0.000& 6.771! 66.47 ! 213.4 ! 63.67 ! 36.00 & 20.95 & 14.97 B 3
4 15.09 B 15.09 B 15.09 B 0.000& 0.000& 13.28 ! 61.62 ! 197.1 ! 59.16 & 33.90 & 20.43 & 14.96 B 4
5 15.09 B 15.09 B 15.09 B 0.000& 0.000& 11.31 ! 56.43 ! 183.4 ! 53.60 & 53.72 & 20.04 & 14.80 B 5
6 15.09 B 15.09 B 15.09 B 0.000& 0.000! 7.748! 51.63 ! 167.1 ! 48.16 & 112.3 & 19.42 & 14.61 B 6
7 15.09 B 15.09 B 15.09 B 0.000& 0.013! 10.43 ! 46.63 ! 144.0 ! 45.48 & 78.58 & 18.79 & 14.50 B 7
8 15.09 B 15.09 B 15.09 B 0.000& 0.089! 6.768! 41.30 ! 213.8 ! 53.78 & 55.44 & 18.49 & 14.41 B 8
9 15.09 B 15.09 B 15.09 B 0.000& 0.229! 2.901! 38.98 ! 180.4 ! 53.85 & 47.45 & 18.26 & 14.27 B 9
10 15.09 B 15.09 B 7.547B 0.000& 0.122! 1.469! 61.84 ! 153.2 ! 48.21 & 59.93 & 17.64 & 28.29 B 10
11 15.09 B 15.09 B 0.000B 0.000& 0.037! 1.040! 84.30 ! 143.6 ! 48.07 & 56.70 & 17.19 & 7.412B 11
12 15.09 B 15.09 B 0.000B 0.000& 0.011! 0.649! 115.0 ! 133.9 ! 61.02 & 42.86 & 17.05 & 7.412B 12
13 15.09 B 15.09 B 0.000B 0.000& 0.003! 0.459! 87.15 ! 121.1 ! 62.20 & 34.79 & 16.61 & 7.412B 13
14 15.09 B 15.09 B 0.000B 0.000& 0.000! 0.299! 61.06 ! 107.6 ! 54.92 & 30.59 & 16.38 & 7.412B 14
15 15.09 B 15.09 B 0.000B 0.000& 0.000! 0.259! 59.74 ! 97.14 ! 81.77 & 42.33 & 16.13 & 7.412B 15
16 15.09 B 15.09 B 0.000B 0.000& 0.000! 0.360! 76.89 ! 90.87 ! 273.5 & 49.58 & 15.86 & 7.412B 16
17 15.09 B 15.09 B 0.000B 0.000& 0.000! 19.22 ! 144.7 ! 229.0 ! 270.9 & 39.79 & 15.68 B 7.412B 17
18 15.09 B 15.09 B 0.000B 0.000& 0.000! 6.079! 329.9 ! 908.4 ! 163.2 & 56.99 & 14.99 B 7.412B 18
19 15.09 B 15.09 B 0.000B 0.000& 0.000! 2.430! 278.4 !1196 ! 135.2 & 69.23 & 14.75 B 7.412B 19
20 15.09 B 15.09 B 0.000B 0.000& 0.001! 1.418! 238.7 ! 861.7 ! 297.3 & 46.53 & 14.67 B 7.412B 20
21 15.09 B 15.09 B 0.000B 0.000& 0.301! 0.994! 257.0 ! 437.7 ! 319.9 & 36.88 & 14.65 B 7.412B 21
22 15.09 B 15.09 B 0.000B 0.000& 0.224! 0.649! 288.6 ! 202.7 ! 173.9 & 29.94 & 14.66 B 7.412B 22
23 15.09 B 15.09 B 0.000B 0.000& 0.132! 0.389! 226.4 ! 227.8 ! 112.1 & 23.33 & 14.74 B 7.412B 23
24 15.09 B 15.09 B 0.000B 0.000& 0.063! 1.749! 136.0 ! 230.1 ! 82.24 & 20.96 & 14.90 B 7.412B 24
25 15.09 B 15.09 B 0.000B 0.000& 0.019! 2.572! 101.4 ! 219.2 ! 68.86 & 21.54 & 14.91 B 7.412B 25
26 15.09 B 15.09 B 0.000& 0.000& 0.002! 17.79 ! 88.55 ! 210.9 ! 100.9 & 24.22 & 14.95 B 7.412B 26
27 15.09 B 15.09 B 0.000& 0.000& 0.435! 146.7 ! 320.3 ! 196.5 ! 193.6 & 25.23 & 14.99 B 7.412B 27
28 15.09 B 15.09 B 0.000& 0.000& 0.294! 97.06 ! 620.3 ! 169.1 ! 118.2 & 25.17 & 14.98 B 7.412B 28
29 15.09 B 0.000& 0.000& 0.122! 90.36 ! 703.5 ! 143.0 ! 83.25 & 24.32 & 14.97 B 7.412B 29
30 15.09 B 0.000& 0.000& 0.084! 83.53 ! 821.9 ! 120.1 ! 66.53 & 23.32 & 14.97 B 7.412B 30
31 15.09 B 0.000& 0.640! 409.5 ! 100.8 ! 22.53 & 7.412B 31
Mean 15.09 B 15.09 B 4.626B 0.000& 0.091! 18.15 ! 194.2 ! 260.8 ! 111.6 ! 42.73 & 16.84 B 10.21 B
Median 15.09 B 15.09 B 0.000B 0.000& 0.011! 2.736! 88.55 ! 196.5 ! 76.29 ! 39.79 & 15.99 B 7.412B
Maximum 15.09 B 15.09 B 15.09 B 0.000& 0.640! 146.7 ! 821.9 !1196 ! 319.9 ! 112.3 & 21.96 B 28.29 B
Minimum 15.09 B 15.09 B 0.000B 0.000& 0.000! 0.259! 38.98 ! 90.87 ! 45.48 ! 20.96 & 14.65 B 7.412B
Total 467.9 B 422.7 B 143.4 B 0.000& 2.819! 544.4 !6021 !8084 !3347 !1325 & 505.3 B 316.4 B
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 58.02 B ! ... Not reviewed / Quality not known
Ann. Median 15.09 B & ... Relative Uncertainty +/-30%
Annual Total 21179 B B ... Outside measured range
Maximum Minimum
Daily 1196 B 0.000B
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 7.412B 27.72 & 27.72 & 14.28 B 0.004" 55.92 " 124.2 " 38.85 " 67.10 " 40.56 " 4.602" 3.223" 1
2 7.412B 27.72 & 27.72 & 14.28 B 0.005" 24.00 " 168.9 " 32.62 " 60.19 " 35.80 " 3.777" 2.712" 2
3 7.517B 27.72 & 27.72 & 14.29 B 0.435" 16.33 " 88.31 " 29.65 " 470.9 & 112.8 " 3.161" 2.192" 3
4 27.72 & 27.72 & 27.72 & 14.21 B 1.294" 13.84 " 73.57 " 69.12 " 778.2 & 197.9 " 2.735" 2.039" 4
5 27.72 & 27.72 & 27.72 & 14.19 B 0.859" 13.50 " 140.3 " 74.64 " 573.8 & 103.6 " 2.241" 1.778" 5
6 27.72 & 27.72 & 27.72 & 14.19 B 0.757" 15.15 " 76.88 " 47.05 " 465.0 & 69.03 " 1.948" 1.330" 6
7 27.72 & 27.72 & 27.72 & 14.18 B 0.624" 12.31 " 55.24 " 113.7 " 223.7 & 51.92 " 163.2 & 1.210" 7
8 27.72 & 27.72 & 27.72 & 14.18 B 0.522" 10.38 " 42.85 " 145.4 " 147.1 " 38.79 " 76.19 " 1.200" 8
9 27.72 & 27.72 & 27.72 & 14.17 B 0.528" 9.263" 35.70 " 123.3 " 101.9 " 31.13 " 29.84 " 1.049" 9
10 27.72 & 27.72 & 27.72 & 14.19 B 0.512" 8.411" 29.05 " 78.27 " 80.69 " 26.24 " 74.72 " 1.368" 10
11 27.72 & 27.72 & 27.72 & 14.17 B 0.355" 7.984" 23.81 " 52.80 " 66.24 " 21.65 " 109.7 " 1.434" 11
12 27.72 & 27.72 & 21.51 B 14.17 B 0.232" 7.528" 21.73 " 40.31 " 60.07 " 19.30 " 99.14 " 1.427" 12
13 27.72 & 27.72 & 14.42 B 14.17 B 0.136" 7.226" 20.89 " 74.60 " 54.47 " 18.01 " 76.84 " 1.225" 13
14 27.72 & 27.72 & 14.41 B 14.15 B 0.697" 7.526" 18.26 " 881.6 ! 49.34 " 16.29 " 46.28 " 0.872" 14
15 27.72 & 27.72 & 14.44 B 14.11 B 42.65 " 7.940" 15.69 "1556 ! 44.99 " 15.29 " 29.41 " 0.689" 15
16 27.72 & 27.72 & 14.41 B 14.13 B 26.32 " 7.535" 14.36 " 593.4 & 40.64 " 12.49 " 20.14 " 0.480" 16
17 27.72 & 27.72 & 14.40 B 14.15 B 10.78 " 6.646" 13.61 " 291.3 & 37.42 " 10.53 " 15.68 " 0.273" 17
18 27.72 & 27.72 & 14.38 B 27.49 B 6.871" 6.077" 12.76 " 188.2 " 71.21 " 11.31 " 12.28 " 0.132" 18
19 27.72 & 27.72 & 14.38 B 61.69 & 5.029" 6.459" 12.28 " 148.6 " 100.1 " 19.80 " 10.10 " 0.059" 19
20 27.72 & 27.72 & 14.39 B 65.65 & 11.51 " 8.072" 16.76 " 128.3 " 64.34 " 28.42 " 8.410" 0.015" 20
21 27.72 & 27.72 & 14.39 B 68.19 & 41.25 " 13.36 " 41.70 " 127.5 " 46.19 " 20.83 " 6.946" 0.010" 21
22 27.72 & 27.72 & 14.40 B 67.92 & 17.01 " 111.9 " 36.82 " 101.0 " 37.47 " 17.17 " 5.589" 0.010" 22
23 27.72 & 27.72 & 14.40 B 65.82 & 10.14 " 125.2 " 30.23 " 75.29 " 32.83 " 14.70 " 4.501" 0.005" 23
24 27.72 & 27.72 & 14.39 B 63.87 & 7.550" 66.17 " 44.65 " 61.56 " 29.00 " 13.90 " 4.110" 0.000" 24
25 27.72 & 27.72 & 14.41 B 62.77 & 6.614" 40.61 " 65.42 " 53.71 " 26.36 " 12.32 " 3.788" 0.000" 25
26 27.72 & 27.72 & 14.36 B 61.92 & 6.294" 28.52 " 43.03 " 48.61 " 25.83 " 10.21 " 3.575" 0.000" 26
27 27.72 & 27.72 & 14.33 B 60.82 & 6.125" 22.73 " 42.80 " 46.99 " 32.57 " 8.532" 3.542" 0.000" 27
28 27.72 & 27.72 & 14.33 B 54.34 & 5.641" 19.75 " 34.35 " 72.08 " 74.05 " 6.997" 3.738" 0.000" 28
29 27.72 & 27.72 & 14.36 B 0.000" 8.554" 60.20 " 33.98 " 303.7 & 76.92 " 6.010" 3.409" 0.000" 29
30 27.72 & 14.36 B 0.000" 40.47 " 131.6 " 43.56 " 131.6 " 50.16 " 5.584" 3.859" 0.000" 30
31 27.72 & 14.30 B 47.77 " 50.03 " 83.62 " 5.210" 0.000" 31
Mean 25.76 B 27.72 & 19.35 B 30.06 B 9.921" 29.07 " 47.48 " 187.5 ! 133.0 & 32.33 " 27.78 & 0.798"
Median 27.72 B 27.72 & 14.41 B 14.20 B 5.641" 13.43 " 36.82 " 78.27 ! 62.26 & 18.01 " 6.267& 0.480"
Maximum 27.72 B 27.72 & 27.72 B 68.19 B 47.77 " 131.6 " 168.9 "1556 ! 778.2 & 197.9 " 163.2 & 3.223"
Minimum 7.412B 27.72 & 14.30 B 0.000B 0.004" 6.077" 12.28 " 29.65 ! 25.83 & 5.210" 1.948& 0.000"
Total 798.6 B 804.0 & 599.7 B 901.7 B 307.5 " 872.2 "1472 "5814 !3989 &1002 " 833.5 & 24.73 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 47.59 B ! ... Not reviewed / Quality not known
Ann. Median 27.72 B " ... Relative Uncertainty +/-10%
Annual Total 17419 B & ... Relative Uncertainty +/-30%
B ... Outside measured range
Maximum Minimum
Daily 1556 B 0.000B
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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" 2.421" 14.56 " 55.02 " 28.80 " 29.68 " 23.10 " 0.000" 1
2 0.000" 0.000" 0.000" 0.000" 0.000" 2.284" 35.36 " 139.4 " 25.47 " 40.78 " 13.88 " 0.000" 2
3 0.000" 0.000" 0.000" 0.000" 0.000" 2.159" 30.81 " 112.0 " 22.77 " 54.24 " 10.16 " 0.000" 3
4 0.000" 0.000" 0.000" 0.000" 0.000" 2.267" 19.99 " 120.9 " 20.42 " 56.51 " 7.979" 0.000" 4
5 0.000" 0.000" 0.000" 0.000" 0.000" 8.485" 15.42 " 68.26 " 19.73 " 30.55 " 6.400" 0.000" 5
6 0.000" 0.000" 0.000" 0.000" 0.000" 18.56 " 12.90 " 46.67 " 19.27 " 20.18 " 5.180" 0.000" 6
7 0.000" 0.000" 0.000" 0.000" 0.000" 9.172" 11.78 " 34.73 ! 27.67 " 15.17 " 4.289" 0.000" 7
8 0.000" 0.000" 0.000" 0.000" 0.000" 5.702" 12.35 " 85.35 ! 49.46 " 17.64 " 3.667" 0.000" 8
9 0.000" 0.000" 0.000" 0.000" 0.000" 4.403" 12.73 " 175.6 " 37.73 " 24.85 " 3.061" 0.000" 9
10 0.000" 0.000" 0.000" 0.000" 0.000" 4.045" 15.03 " 606.8 & 29.28 " 18.01 " 2.461" 0.000" 10
11 0.000" 0.000" 0.000" 0.000" 0.000" 11.05 " 13.63 " 453.2 & 22.74 " 20.59 " 1.982" 0.000" 11
12 0.000" 0.000" 0.000" 0.000" 0.000" 11.14 " 17.01 " 259.9 & 18.85 " 25.97 " 1.586" 0.000" 12
13 0.000" 0.000" 0.000" 0.000" 0.000" 8.473" 15.98 " 330.5 & 15.87 " 34.36 " 1.154" 0.000" 13
14 0.000" 0.000" 0.000" 0.000" 0.000" 16.50 " 12.65 " 213.8 & 13.71 " 23.87 " 0.663" 0.000" 14
15 0.000" 0.000" 0.000" 0.000" 0.000" 58.03 " 11.75 " 112.1 " 12.76 " 16.33 " 0.376" 0.000" 15
16 0.000" 0.000" 0.000" 0.000" 0.000" 74.46 " 10.34 " 78.42 " 16.61 " 12.13 " 0.226" 0.000" 16
17 0.000" 0.000" 0.000" 0.000" 0.000" 87.56 " 12.98 ! 62.28 " 21.60 " 9.470" 0.121" 0.000" 17
18 0.000" 0.000" 0.000" 0.000" 0.000" 38.76 " 44.60 ! 80.30 " 25.36 " 7.654" 0.063" 0.000" 18
19 0.000" 0.000" 0.000" 0.000" 0.000" 21.82 " 86.33 " 273.6 & 19.76 " 6.162" 0.030" 0.000" 19
20 0.000" 0.000" 0.000" 0.000" 0.000" 16.99 " 171.4 " 285.8 & 15.97 " 4.883" 0.005" 0.000" 20
21 0.000" 0.000" 0.000" 0.000" 0.000" 14.37 " 144.9 " 139.6 " 13.53 " 4.408" 0.000" 0.000" 21
22 0.000" 0.000" 0.000" 0.000" 0.000" 12.41 " 85.35 " 110.7 " 13.22 " 3.125" 0.000" 0.000" 22
23 0.000" 0.000" 0.000" 0.000" 0.000" 11.06 " 60.31 " 113.2 " 15.13 " 2.770" 0.000" 0.000" 23
24 0.000" 0.000" 0.000" 0.000" 0.000" 10.02 " 40.83 " 89.92 " 14.63 " 2.237" 0.000" 0.000" 24
25 0.000" 0.000" 0.000" 0.000" 0.661" 10.04 " 29.80 " 75.63 " 14.25 " 2.223" 0.000" 0.000" 25
26 0.000" 0.000" 0.000" 0.000" 21.82 " 11.36 " 23.26 " 90.31 " 12.12 " 2.290" 0.000" 0.000" 26
27 0.000" 0.000" 0.000" 0.000" 9.821" 32.68 " 19.25 " 87.38 " 11.01 " 2.688" 0.000" 0.000" 27
28 0.000" 0.000" 0.000" 0.000" 5.532" 19.80 " 16.87 " 101.3 " 11.12 " 9.168" 0.000" 0.000" 28
29 0.000" 0.000" 0.000" 4.075" 14.42 " 15.73 " 65.38 " 11.39 " 14.94 " 0.000" 0.000" 29
30 0.000" 0.000" 0.000" 3.413" 12.64 " 15.77 " 44.82 " 10.81 " 21.80 " 0.000" 0.000" 30
31 0.000" 0.000" 2.965" 17.87 " 34.46 " 46.75 " 0.000" 31
Mean 0.000" 0.000" 0.000" 0.000" 1.558" 18.44 " 33.79 ! 146.7 ! 19.70 " 18.76 " 2.880" 0.000"
Median 0.000" 0.000" 0.000" 0.000" 0.000" 11.25 " 16.87 ! 101.3 ! 17.73 " 16.33 " 0.301" 0.000"
Maximum 0.000" 0.000" 0.000" 0.000" 21.82 " 87.56 " 171.4 ! 606.8 ! 49.46 " 56.51 " 23.10 " 0.000"
Minimum 0.000" 0.000" 0.000" 0.000" 0.000" 2.159" 10.34 ! 34.46 ! 10.81 " 2.223" 0.000" 0.000"
Total 0.000" 0.000" 0.000" 0.000" 48.29 " 553.1 "1048 !4547 ! 591.1 " 581.4 " 86.39 " 0.000"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 20.43 ! ! ... Not reviewed / Quality not known
Ann. Median 0.000! " ... Relative Uncertainty +/-10%
Annual Total 7455 ! & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 606.8 ! 0.000!
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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" 8.350" 263.9 & 158.5 " 40.93 " 207.4 3.262& 0.027& 1
2 0.000" 0.000" 0.000" 0.000" 0.000" 9.271" 176.7 & 131.0 " 34.85 " 444.6 3.043& 0.028& 2
3 0.000" 0.000" 0.000" 0.000" 0.000" 9.781" 112.6 & 116.8 " 32.84 " 219.3 3.195& 0.008& 3
4 0.000" 0.000" 0.000" 0.000" 0.000" 10.79 " 91.27 & 109.4 " 34.50 " 128.0 4.934& 0.007& 4
5 0.000" 0.000" 0.000" 0.000" 0.000" 11.62 " 76.47 & 314.1 " 36.99 " 91.95 3.047& 0.003& 5
6 0.000" 0.000" 0.000" 0.000" 0.000" 45.73 " 143.9 & 279.7 " 32.96 " 72.62 0.763& 0.000& 6
7 0.000" 0.000" 0.000" 0.000" 0.000" 27.74 " 124.9 & 163.1 " 28.85 " 58.23 2.076& 0.000 7
8 0.000" 0.000" 0.000" 0.000" 0.000" 16.80 " 85.05 & 126.9 " 27.08 " 48.21 2.935& 0.000 8
9 0.000" 0.000" 0.000" 0.000" 0.000" 38.57 " 64.82 & 99.11 " 46.65 " 40.25 2.594& 0.000 9
10 0.000" 0.000" 0.000" 0.000" 0.000" 51.03 " 53.36 & 87.88 " 149.7 " 33.09 3.142& 0.000 10
11 0.000" 0.000" 0.000" 0.000" 0.000" 26.04 " 45.93 & 81.25 " 345.7 " 28.37 3.159& 0.000 11
12 0.000" 0.000" 0.000" 0.000" 0.000" 19.15 " 179.4 & 75.44 " 241.7 23.81 1.927& 0.000 12
13 0.000" 0.000" 0.000" 0.000" 0.000" 15.94 " 197.0 & 72.65 " 123.4 19.91 1.236& 0.000 13
14 0.000" 0.000" 0.000" 0.000" 0.000" 14.04 " 256.9 & 68.65 " 88.64 17.77 0.916& 0.000 14
15 0.000" 0.000" 0.000" 0.000" 0.000" 22.83 "2343 & 62.36 " 187.5 16.66 0.697& 0.000 15
16 0.000" 0.000" 0.000" 0.000" 0.000" 27.81 "2007 & 64.73 " 201.4 16.34 0.570& 0.000 16
17 0.000" 0.000" 0.000" 0.000" 0.000" 17.35 "1352 " 71.00 " 117.0 14.54 0.484& 0.000 17
18 0.000" 0.000" 0.000" 0.000" 0.000" 13.79 "1282 " 62.06 " 86.90 12.93 0.248& 0.000 18
19 0.000" 0.000" 0.000" 0.000" 0.000" 13.99 "1482 " 56.02 " 236.2 10.91 0.127& 0.000 19
20 0.000" 0.000" 0.000" 0.000" 0.000" 53.28 "1594 " 55.54 " 626.1 10.04 0.124& 0.000 20
21 0.000" 0.000" 0.000" 0.000" 16.48 " 54.81 "2367 & 52.67 " 369.5 8.879 0.112& 0.000 21
22 0.000" 0.000" 0.000" 0.000" 54.14 " 291.0 &2002 & 47.75 " 247.0 8.013 0.186& 0.000 22
23 0.000" 0.000" 0.000" 0.000" 21.21 " 541.0 & 947.1 " 43.99 " 264.6 7.539 0.383& 0.000 23
24 0.000" 0.000" 0.000" 0.000" 9.242" 632.0 & 538.2 " 46.17 " 358.9 7.435 0.341& 0.000 24
25 0.000" 0.000" 0.000" 0.000" 7.402" 293.2 &1464 " 47.69 " 251.6 7.121 0.146& 0.000 25
26 0.000" 0.000" 0.000" 0.000" 10.40 " 247.6 &1077 " 40.52 " 145.8 6.861 0.080& 0.000 26
27 0.000" 0.000" 0.000" 0.000" 20.13 "1464 & 539.7 " 36.59 " 107.0 5.881 0.063& 0.000 27
28 0.000" 0.000" 0.000" 0.000" 29.94 " 403.6 & 330.8 " 34.46 " 82.30 5.345& 0.060& 0.000 28
29 0.000" 0.000" 0.000" 26.60 " 441.4 & 242.9 " 52.58 " 66.62 4.461& 0.040& 0.000 29
30 0.000" 0.000" 0.000" 16.58 " 438.2 & 190.9 " 61.28 " 56.46 3.844& 0.038& 0.000 30
31 0.000" 0.000" 10.82 " 185.7 " 49.95 " 3.559& 0.000 31
Mean 0.000" 0.000" 0.000" 0.000" 7.192" 175.4 & 703.8 & 89.36 " 155.7 " 51.09 & 1.331& 0.002&
Median 0.000" 0.000" 0.000" 0.000" 0.000" 27.78 & 256.9 & 64.73 " 112.0 " 16.34 & 0.634& 0.000&
Maximum 0.000" 0.000" 0.000" 0.000" 54.14 "1464 &2367 & 314.1 " 626.1 " 444.6 & 4.934& 0.028&
Minimum 0.000" 0.000" 0.000" 0.000" 0.000" 8.350& 45.93 & 34.46 " 27.08 " 3.559& 0.038& 0.000&
Total 0.00" 0.00" 0.00" 0.00" 222.9 " 5261 &21817 & 2770 " 4670 " 1584 & 39.93& 0.07&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 99.63 & " ... Relative Uncertainty +/-10%
Ann. Median 0.341& & ... Relative Uncertainty +/-30%
Annual Total 36365 &
Maximum Minimum
Daily 2367 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 2.524& 100.9 81.85 51.98 19.92 1.582& 0.242& 1
2 0.000 0.000 0.000 0.000 0.000 2.883& 74.01 66.67 47.35 20.27 1.811& 0.169& 2
3 0.000 0.000 0.000 0.000 0.000 6.144& 63.60 54.85 48.21 20.83 1.396& 0.126& 3
4 0.000 0.000 0.000 0.000 0.000 8.587 52.29 46.77 50.11 18.99 1.058& 0.074& 4
5 0.000 0.000 0.000 0.000 0.000 7.968 74.47 42.90 43.94 18.81 0.891& 0.043& 5
6 0.000 0.000 0.000 0.000 0.000 6.488 79.42 47.79 50.02 17.84 1.175& 0.025& 6
7 0.000 0.000 0.000 0.000 0.000 5.042& 276.9 133.2 51.94 18.30 1.275& 0.005& 7
8 0.000 0.000 0.000 0.000 0.000 4.365& 295.3 113.4 52.51 18.49 4.021& 0.000& 8
9 0.000 0.000 0.000 0.000 0.000 6.574& 191.7 85.72 66.18 18.15 6.626& 0.000& 9
10 0.000 0.000 0.000 0.000 0.000 18.02 120.2 73.02 81.92 16.77 8.020 0.000& 10
11 0.000 0.000 0.000 0.000 0.000 69.49 118.3 63.62 56.87 15.41 9.179 0.000& 11
12 0.000 0.000 0.000 0.000 0.000 25.13 257.8 54.07 44.79 15.90 6.955 0.000& 12
13 0.000 0.000 0.000 0.000 0.000 13.94 190.2 45.99 40.86 13.72 20.67 0.000 13
14 0.000 0.000 0.000 0.000 0.000 11.57 210.2 40.59 41.06 13.32 35.19 0.000 14
15 0.000 0.000 0.000 0.000 0.000 9.196 344.6 47.56 50.76 12.79 15.47 0.000 15
16 0.000 0.000 0.000 0.000 0.000 10.18 354.1 52.94 65.36 11.25 10.02 0.000 16
17 0.000 0.000 0.000 0.000 0.000 46.17 172.6 898.9 " 50.78 10.12 8.451 0.000 17
18 0.000 0.000 0.000 0.000 0.000 28.21 113.8 956.2 " 38.34 8.849 11.73 0.000 18
19 0.000 0.000 0.000 0.000 0.000 15.52 102.7 1636 " 30.70 7.726 9.739 0.000 19
20 0.000 0.000 0.000 0.000 0.000 12.19 292.7 931.5 " 28.33 8.651 7.872 0.000 20
21 0.000 0.000 0.000 0.000 0.000 10.81 146.6 322.0 69.55 14.68 6.140 0.000 21
22 0.000 0.000 0.000 0.000 0.000 10.11 99.59 201.4 76.69 13.75 4.786& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 243.0 83.60 145.3 48.14 10.17 4.241& 0.000 23
24 0.000 0.000 0.000 0.000 21.56 & 414.8 69.39 176.2 36.99 8.082 3.604& 0.000 24
25 0.000 0.000 0.000 0.000 10.39 190.2 57.67 344.9 34.06 6.522 2.570& 0.000 25
26 0.000 0.000 0.000 0.000 5.403& 116.7 51.05 214.9 37.26 5.150& 2.166& 0.000 26
27 0.000 0.000 0.000 0.000 3.845& 142.9 46.62 131.0 33.21 3.661& 1.454& 0.000 27
28 0.000 0.000 0.000 0.000 3.570& 123.4 42.75 101.4 26.46 2.639& 1.000& 0.000 28
29 0.000 0.000 0.000 3.611& 456.9 183.2 83.32 22.58 2.124& 0.712& 0.000 29
30 0.000 0.000 0.000 3.431& 232.8 210.1 70.44 21.51 2.109& 0.457& 0.000 30
31 0.000 0.000 2.932& 113.1 59.66 1.968& 0.000 31
Mean 0.000 0.000 0.000 0.000 1.766& 75.06 & 148.0 236.3 " 46.62 12.16 & 6.342& 0.022&
Median 0.000 0.000 0.000 0.000 0.000& 13.07 & 113.8 83.32 " 47.75 13.32 & 4.131& 0.000&
Maximum 0.000 0.000 0.000 0.000 21.56 & 456.9 & 354.1 1636 " 81.92 20.83 & 35.19 & 0.242&
Minimum 0.000 0.000 0.000 0.000 0.000& 2.524& 42.75 40.59 " 21.51 1.968& 0.457& 0.000&
Total 0.000 0.000 0.000 0.000 54.74 &2252 &4589 7325 "1398 377.0 & 190.3 & 0.684&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 44.35 & " ... Relative Uncertainty +/-10%
Ann. Median 1.454& & ... Relative Uncertainty +/-30%
Annual Total 16187 &
Maximum Minimum
Daily 1636 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 66.23 158.3 502.7 122.2 52.29 6.815 1.672& 1
2 0.000 0.000 0.000 0.000 0.000 47.63 94.42 254.9 114.4 41.23 6.342 1.269& 2
3 0.000 0.000 0.000 0.000 0.000 39.26 71.83 159.1 102.5 35.95 6.268 1.065& 3
4 0.000 0.000 0.000 0.000 0.000 32.61 53.86 122.8 99.85 35.34 6.433 0.946& 4
5 0.000 0.000 0.000 0.000 0.000 68.80 42.53 190.0 78.52 44.03 6.824 0.694& 5
6 0.000 0.000 0.000 0.000 50.34 & 32.87 36.00 231.9 74.99 36.11 6.710 0.380& 6
7 0.000 0.000 0.000 0.000 13.69 19.42 30.58 156.8 85.52 28.10 6.164 0.171& 7
8 0.000 0.000 0.000 0.000 7.613 15.13 26.09 113.5 105.8 23.70 5.386& 0.074& 8
9 0.000 0.000 0.000 0.000 5.783& 12.47 24.98 541.2 " 88.69 21.33 4.694& 0.028& 9
10 0.000 0.000 0.000 0.000 4.656& 10.76 139.3 914.3 " 64.92 21.22 4.188& 0.003& 10
11 0.000 0.000 0.000 0.000 3.801& 9.710 471.3 284.3 51.78 18.76 4.386& 0.000& 11
12 0.000 0.000 0.000 0.000 3.214& 9.202 1416 " 164.9 44.34 16.71 3.852& 0.000& 12
13 0.000 0.000 0.000 0.000 2.793& 9.454 1433 " 124.2 41.56 15.66 3.853& 0.000& 13
14 0.000 0.000 0.000 0.000 2.707& 12.98 624.5 99.86 63.69 14.38 3.822& 0.000& 14
15 0.000 0.000 0.000 0.000 2.660& 19.78 366.9 83.33 56.04 13.72 3.276& 0.000& 15
16 0.000 0.000 0.000 0.000 2.508& 26.54 825.2 71.90 54.74 14.71 2.857& 0.000& 16
17 0.000 0.000 0.000 0.000 2.465& 24.40 362.1 68.18 53.25 14.19 2.790& 0.000 17
18 0.000 0.000 0.000 0.000 2.392& 17.78 184.6 178.4 41.38 13.10 3.187& 0.000 18
19 0.000 0.000 0.000 0.000 2.092& 13.86 128.9 274.8 37.69 12.21 3.622& 0.000 19
20 0.000 0.000 0.000 0.000 1.762& 11.95 96.75 152.9 33.20 11.02 3.265& 0.000 20
21 0.000 0.000 0.000 0.000 1.602& 43.39 79.35 216.6 31.44 15.04 2.406& 0.000 21
22 0.000 0.000 0.000 0.000 1.796& 361.2 71.59 296.1 506.4 71.92 1.855& 0.000 22
23 0.000 0.000 0.000 0.000 16.04 & 134.5 65.33 165.7 401.3 64.89 1.567& 0.000 23
24 0.000 0.000 0.000 0.000 8.494 158.0 69.03 117.8 190.9 34.62 1.334& 0.000 24
25 0.000 0.000 0.000 0.000 6.269 212.3 142.5 94.15 134.8 25.96 1.733& 0.000 25
26 0.000 0.000 0.000 0.000 6.655 106.7 381.9 509.7 88.82 26.65 2.532& 0.000 26
27 0.000 0.000 0.000 0.000 5.987& 83.77 911.1 572.1 68.68 22.80 4.285& 0.000 27
28 0.000 0.000 0.000 0.000 6.904 54.61 542.0 247.1 58.59 17.49 4.681& 0.000 28
29 0.000 0.000 0.000 0.000 15.37 110.2 333.6 179.0 85.05 13.65 3.345& 0.000 29
30 0.000 0.000 0.000 24.57 305.1 198.8 198.6 77.15 10.93 2.211& 0.000 30
31 0.000 0.000 40.97 246.2 156.0 8.098 0.000 31
Mean 0.000 0.000 0.000 0.000 7.843& 69.02 310.6 " 240.1 " 101.9 25.67 4.023& 0.203&
Median 0.000 0.000 0.000 0.000 3.214& 32.74 142.5 " 178.4 " 76.07 21.22 3.837& 0.000&
Maximum 0.000 0.000 0.000 0.000 50.34 & 361.2 1433 " 914.3 " 506.4 71.92 6.824& 1.672&
Minimum 0.000 0.000 0.000 0.000 0.000& 9.202 24.98 " 68.18 " 31.44 8.098 1.334& 0.000&
Total 0.000 0.000 0.000 0.000 243.1 &2071 9628 "7443 "3058 795.8 120.7 & 6.301&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 63.84 & " ... Relative Uncertainty +/-10%
Ann. Median 3.811& & ... Relative Uncertainty +/-30%
Annual Total 23366 &
Maximum Minimum
Daily 1433 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 0.000 0.000 118.8 728.7 1183 " 77.24 87.67 10.20 2.857& 1
2 0.000 0.000 0.000 0.000 0.000 83.18 417.5 878.5 " 71.19 249.6 10.09 2.514& 2
3 0.000 0.000 0.000 0.000 0.000 90.48 262.2 1089 " 63.01 125.4 10.29 2.094& 3
4 0.000 0.000 0.000 0.000 0.000 63.49 194.2 1168 " 60.43 78.30 8.807 1.684& 4
5 0.000 0.000 0.000 0.000 0.000 45.36 155.9 1079 " 89.81 61.84 8.071 1.641& 5
6 0.000 0.000 0.000 0.000 0.000 214.6 " 131.4 741.6 83.18 52.12 6.957 1.762& 6
7 0.000 0.000 0.000 0.000 0.000 1749 " 118.6 1107 " 74.77 45.83 11.08 1.373& 7
8 0.000 0.000 0.000 0.000 0.000 1658 " 124.5 933.0 " 319.5 41.76 18.65 1.051& 8
9 0.000 0.000 0.000 0.000 0.000 1883 " 115.8 426.5 344.9 38.51 14.02 1.146& 9
10 0.000 0.000 0.000 0.000 0.000 833.6 " 107.4 1710 " 188.3 31.03 9.006 1.503& 10
11 0.000 0.000 0.000 0.000 0.000 346.7 103.8 1921 " 128.3 26.73 7.038 1.128& 11
12 0.000 0.000 0.000 0.000 0.000 788.0 119.7 1221 " 98.46 23.88 7.296 0.968& 12
13 0.000 0.000 0.000 0.000 0.000 698.3 112.6 681.9 83.31 21.24 7.731 0.644& 13
14 0.000 0.000 0.000 0.000 0.000 258.4 104.8 478.6 71.71 19.62 5.928& 0.351& 14
15 0.000 0.000 0.000 0.000 0.000 176.3 174.8 1177 " 61.66 18.50 4.548& 0.183& 15
16 0.000 0.000 0.000 0.000 0.000 267.8 200.2 1063 " 58.26 17.06 3.096& 0.206& 16
17 0.000 0.000 0.000 0.000 0.000 266.3 181.0 720.3 75.08 16.09 2.081& 0.266& 17
18 0.000 0.000 0.000 0.000 0.000 198.6 541.1 446.8 78.33 16.19 1.487& 0.182& 18
19 0.000 0.000 0.000 0.000 0.000 152.1 517.4 545.7 75.16 16.77 1.537& 0.116& 19
20 0.000 0.000 0.000 0.000 0.000 156.3 235.3 616.0 110.9 14.46 1.282& 0.104& 20
21 0.000 0.000 0.000 0.000 0.000 271.8 212.6 349.6 124.4 12.42 1.373& 0.092& 21
22 0.000 0.000 0.000 0.000 0.000 184.4 1313 " 264.2 94.63 12.04 1.781& 0.082& 22
23 0.000 0.000 0.000 0.000 0.000 128.9 2357 " 215.1 95.36 12.36 2.361& 0.080& 23
24 0.000 0.000 0.000 0.000 0.000 122.9 1535 " 181.0 72.04 10.26 1.956& 0.133& 24
25 0.000 0.000 0.000 0.000 0.489& 289.6 1039 " 166.8 57.91 8.447 1.792& 0.255& 25
26 0.000 0.000 0.000 0.000 112.3 333.3 631.0 160.9 54.63 10.76 4.325& 0.499& 26
27 0.000 0.000 0.000 0.000 140.4 981.0 "1085 130.2 50.17 26.69 9.071 0.628& 27
28 0.000 0.000 0.000 0.000 202.1 1344 " 747.1 116.3 41.98 25.65 6.270& 0.719& 28
29 0.000 0.000 0.000 154.9 705.4 386.5 112.7 40.60 20.71 4.405& 0.586& 29
30 0.000 0.000 0.000 1279 " 885.7 712.0 96.63 42.68 16.45 3.539& 0.270& 30
31 0.000 0.000 524.7 " 610.3 83.20 12.62 0.120& 31
Mean 0.000 0.000 0.000 0.000 77.87 & 509.8 " 492.7 " 679.5 " 96.26 37.77 6.202& 0.814&
Median 0.000 0.000 0.000 0.000 0.000& 267.0 " 235.3 " 616.0 " 75.12 20.71 6.099& 0.586&
Maximum 0.000 0.000 0.000 0.000 1279 &1883 "2357 "1921 " 344.9 249.6 18.65 & 2.857&
Minimum 0.000 0.000 0.000 0.000 0.000& 45.36 " 103.8 " 83.20 " 40.60 8.447 1.282& 0.080&
Total 0.00 0.00 0.00 0.00 2414 &15294 "15275 "21063 " 2888 1171 186.1 & 25.24&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 159.8 & " ... Relative Uncertainty +/-10%
Ann. Median 2.361& & ... Relative Uncertainty +/-30%
Annual Total 58316 &
Maximum Minimum
Daily 2357 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.035& 0.003& 0.000& 0.000& 0.000 3.583& 152.8 121.8 85.77 43.78 5.157& 0.104& 1
2 0.004& 0.000& 0.000& 0.000& 0.000 3.283& 165.4 1300 " 89.55 47.47 4.634& 0.064& 2
3 0.001& 0.000& 0.000& 0.000& 0.000 12.82 & 96.85 676.8 " 92.30 57.19 4.559& 0.023& 3
4 0.000& 0.000& 0.000& 0.000& 0.000 15.09 101.5 287.0 77.62 100.2 4.795& 0.004& 4
5 0.000 0.000& 0.000& 0.000& 0.000 7.201 89.51 204.6 66.71 194.0 4.822& 0.002& 5
6 0.000 0.000& 0.000& 0.000& 0.000 5.522& 217.1 155.3 54.00 167.8 4.596& 0.000& 6
7 0.000 0.000& 0.000& 0.000& 0.000 3.690& 136.7 812.8 " 47.79 92.98 5.508& 0.000 7
8 0.000 0.000& 0.000& 0.000 0.000 60.74 & 97.34 1544 " 44.25 64.35 3.856& 0.000 8
9 0.000 0.000& 0.000& 0.000 0.000 95.22 80.72 599.7 40.69 44.26 3.192& 0.000 9
10 0.000 0.000& 0.000& 0.000 0.000 43.28 82.35 299.0 37.40 33.44 3.185& 0.000 10
11 0.000 0.000& 0.000& 0.000 0.000 58.79 68.19 213.4 33.58 27.92 1.987& 0.000 11
12 0.000 0.000& 0.000& 0.000 0.000 29.14 52.97 162.9 30.29 25.25 1.464& 0.000 12
13 0.000 0.000& 0.000& 0.000 0.000 93.91 39.75 134.9 29.74 23.65 1.251& 0.000 13
14 0.000 0.000& 0.000& 0.000 0.000 265.6 33.76 119.0 34.91 22.60 1.184& 0.000 14
15 0.000 0.000& 0.000& 0.000 0.000 160.5 100.0 104.9 446.2 19.75 0.876& 0.000 15
16 0.000 0.000& 0.000& 0.000 0.000 307.3 677.1 89.88 859.7 17.35 0.585& 0.000 16
17 0.000 0.000& 0.000& 0.000 0.000 289.0 526.4 79.14 373.7 15.42 0.392& 0.000 17
18 0.000 0.000& 0.000& 0.000 0.000 895.0 " 239.8 79.24 232.3 13.76 0.363& 0.000 18
19 0.000 0.000& 0.000& 0.000 0.000 679.1 " 157.6 217.8 157.1 12.40 0.416& 0.000 19
20 0.000 0.000& 0.000& 0.000 0.000 192.6 1304 " 187.6 111.1 10.49 0.322& 0.000 20
21 0.000 0.000& 0.000& 0.000 0.000 112.8 1192 " 133.9 116.9 8.920 0.077& 0.000 21
22 13.75 & 0.000& 0.000& 0.000 0.000 84.40 1140 " 111.1 114.6 7.458 0.028& 0.000 22
23 17.02 0.000& 0.000& 0.000 0.000 71.24 745.4 589.6 127.4 6.893 0.013& 0.000 23
24 7.657& 0.000& 0.000& 0.000 0.000 79.77 491.8 787.3 269.8 6.457 0.009& 0.000 24
25 4.116& 0.000& 0.000& 0.000 0.000 100.5 360.4 283.3 349.1 6.966 0.005& 0.000 25
26 2.225& 0.000& 0.000& 0.000 0.000 111.3 247.3 188.7 200.5 8.545 0.008& 0.000 26
27 1.061& 0.000& 0.000& 0.000 0.000 81.17 221.9 146.8 118.7 8.101 0.141& 0.000 27
28 0.503& 0.000& 0.000& 0.000 0.000 65.66 203.3 118.3 85.83 7.429 0.213& 0.000 28
29 0.233& 0.000& 0.000 4.124& 70.85 148.1 109.1 66.52 7.292 0.155& 0.000 29
30 0.111& 0.000& 0.000 5.802& 62.12 117.2 96.00 52.91 8.224 0.137& 0.000 30
31 0.024& 0.000& 4.614& 99.62 85.04 5.873& 0.000 31
Mean 1.508& 0.000& 0.000& 0.000& 0.469& 135.4 & 302.8 " 323.8 " 148.2 36.01 & 1.798& 0.006&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 75.51 & 152.8 " 162.9 " 87.69 17.35 & 0.730& 0.000&
Maximum 17.02 & 0.003& 0.000& 0.000& 5.802& 895.0 &1304 "1544 " 859.7 194.0 & 5.508& 0.104&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 3.283& 33.76 " 79.14 " 29.74 5.873& 0.005& 0.000&
Total 46.74& 0.00& 0.00& 0.00& 14.54& 4061 & 9387 "10039 " 4447 1116 & 53.93& 0.20&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 79.91 & " ... Relative Uncertainty +/-10%
Ann. Median 0.322& & ... Relative Uncertainty +/-30%
Annual Total 29166 &
Maximum Minimum
Daily 1544 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 346.8 274.5 753.8 43.40 3.589& 1.583& 1
2 0.000 0.000 0.000 0.000 0.000 1.506& 194.2 290.1 981.8 " 38.10 2.977& 1.207& 2
3 0.000 0.000 0.000 0.000 0.000 35.40 115.0 237.8 587.9 33.28 2.515& 1.048& 3
4 0.000 0.000 0.000 0.000 0.000 12.33 87.11 200.6 1209 " 29.44 2.460& 1.238& 4
5 0.000 0.000 0.000 0.000 0.000 17.26 65.94 494.9 1039 " 26.74 2.488& 1.216& 5
6 0.000 0.000 0.000 0.000 0.000 10.21 50.86 338.5 1198 " 24.55 4.126& 0.790& 6
7 0.000 0.000 0.000 0.000 0.000 6.043& 44.64 213.9 1329 " 23.35 5.397& 0.591& 7
8 0.000 0.000 0.000 0.000 0.000 4.839& 639.8 " 161.0 643.3 22.27 6.882 0.446& 8
9 0.000 0.000 0.000 0.000 0.000 3.654&1002 " 128.9 331.3 20.38 5.543& 0.272& 9
10 0.000 0.000 0.000 0.000 0.000 3.176& 369.6 112.1 229.3 18.58 4.187& 0.178& 10
11 0.000 0.000 0.000 0.000 0.000 2.944& 213.3 103.9 175.8 17.62 3.710& 0.096& 11
12 0.000 0.000 0.000 0.000 0.000 2.576& 142.0 264.8 271.1 19.05 16.30 & 0.038& 12
13 0.000 0.000 0.000 0.000 0.000 2.314& 109.6 377.1 528.0 39.62 78.03 0.021& 13
14 0.000 0.000 0.000 0.000 0.000 2.217& 91.23 370.0 421.2 38.48 43.65 0.008& 14
15 0.000 0.000 0.000 0.000 0.000 1.953& 77.33 260.1 475.1 27.54 22.75 0.001& 15
16 0.000 0.000 0.000 0.000 0.000 1.677& 67.23 160.2 556.5 22.24 19.14 0.000 16
17 0.000 0.000 0.000 0.000 0.000 19.21 & 59.74 139.4 286.1 20.64 105.4 0.000 17
18 0.000 0.000 0.000 0.000 0.000 213.5 58.58 256.2 194.3 19.70 97.67 0.000 18
19 0.000 0.000 0.000 0.000 0.000 122.4 68.45 175.4 148.2 16.75 58.62 0.000 19
20 0.000 0.000 0.000 0.000 0.000 76.09 60.45 146.3 117.6 13.67 44.21 0.000 20
21 0.000 0.000 0.000 0.000 0.000 37.70 54.20 172.8 99.24 10.92 30.32 0.000 21
22 0.000 0.000 0.000 0.000 0.000 45.63 48.21 125.3 81.35 9.146 21.78 0.000 22
23 0.000 0.000 0.000 0.000 0.000 59.02 42.52 366.1 71.37 8.479 16.77 0.000 23
24 0.000 0.000 0.000 0.000 0.000 30.72 1415 " 818.5 72.26 7.983 11.73 0.000 24
25 0.000 0.000 0.000 0.000 0.000 38.84 2075 " 526.1 67.04 7.129 8.484 0.000 25
26 0.000 0.000 0.000 0.000 0.000 72.19 2743 & 405.5 58.59 6.434 7.514 0.000 26
27 0.000 0.000 0.000 0.000 0.000 68.22 1478 " 339.9 61.29 5.794 7.439 0.000 27
28 0.000 0.000 0.000 0.000 0.000 922.2 ! 575.5 393.1 67.99 5.402& 6.131& 0.000 28
29 0.000 0.000 0.000 0.000 1509 ! 321.0 487.8 57.13 5.067& 3.373& 0.000 29
30 0.000 0.000 0.000 0.000 743.9 " 465.2 334.7 49.38 4.797& 2.059& 0.000 30
31 0.000 0.000 0.000 400.3 298.8 4.238& 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 135.6 ! 434.9 & 289.5 405.4 " 19.06 & 21.51 & 0.282&
Median 0.000 0.000 0.000 0.000 0.000 18.24 ! 115.0 & 264.8 250.2 " 19.05 & 7.476& 0.000&
Maximum 0.000 0.000 0.000 0.000 0.000 1509 !2743 & 818.5 1329 " 43.40 & 105.4 & 1.583&
Minimum 0.000 0.000 0.000 0.000 0.000 0.000! 42.52 & 103.9 49.38 " 4.238& 2.059& 0.000&
Total 0.00 0.00 0.00 0.00 0.00 4067 !13482 & 8974 12161 " 590.8 & 645.2 & 8.73&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 109.4 ! ! ... Not reviewed / Quality not known
Ann. Median 1.506! " ... Relative Uncertainty +/-10%
Annual Total 39929 ! & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 2743 ! 0.000!
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 0.000 0.000 54.56 41.42 51.70 101.7 39.79 7.912 0.694& 1
2 0.000 0.000 0.000 0.000 0.000 45.16 40.80 334.5 121.0 52.82 7.267 0.521& 2
3 0.000 0.000 0.000 0.000 0.000 37.50 40.72 918.9 191.0 43.75 9.762 0.594& 3
4 0.000 0.000 0.000 0.000 0.000 30.82 111.0 376.0 177.8 34.43 8.313 0.565& 4
5 0.000 0.000 0.000 0.000 0.000 55.51 229.5 229.9 583.6 30.82 6.764 0.504& 5
6 0.000 0.000 0.000 0.000 0.000 241.2 915.0 782.0 " 450.5 28.78 11.19 0.316& 6
7 0.000 0.000 0.000 0.000 3.644& 132.2 606.9 1394 " 248.8 38.93 21.57 0.201& 7
8 0.000 0.000 0.000 0.000 26.49 78.03 675.0 808.0 208.4 64.03 55.91 0.110& 8
9 0.000 0.000 0.000 0.000 34.54 59.34 356.3 859.2 448.8 66.32 128.3 0.095& 9
10 0.000 0.000 0.000 0.000 28.70 47.60 235.4 394.7 496.3 44.33 " 67.02 0.318& 10
11 0.000 0.000 0.000 0.000 19.05 39.77 171.1 252.5 223.8 37.32 " 36.09 0.483& 11
12 0.000 0.000 0.000 0.000 15.55 42.06 127.6 195.0 151.2 33.24 " 23.59 0.555& 12
13 0.000 0.000 0.000 0.000 12.78 119.8 102.2 158.0 132.3 29.46 " 16.32 0.514& 13
14 0.000 0.000 0.000 0.000 9.947 140.8 86.19 155.2 2155 & 26.22 " 11.02 0.271& 14
15 0.000 0.000 0.000 0.000 8.433 84.27 80.27 265.8 1731 " 23.45 " 7.877 0.085& 15
16 0.000 0.000 0.000 0.000 8.509 67.37 146.1 311.0 647.5 20.86 " 6.696 0.027& 16
17 0.000 0.000 0.000 0.000 55.45 53.49 183.2 213.9 301.7 18.46 " 8.480 0.005& 17
18 0.000 0.000 0.000 0.000 104.1 44.48 126.0 285.5 206.9 16.21 " 11.62 0.000& 18
19 0.000 0.000 0.000 0.000 64.73 38.34 95.11 427.7 153.3 14.11 " 10.64 0.000 19
20 0.000 0.000 0.000 0.000 215.8 35.25 91.16 336.1 114.9 12.18 " 8.225 0.000 20
21 0.000 0.000 0.000 0.000 187.8 148.0 86.72 274.8 90.61 10.41 " 5.879& 0.000 21
22 0.000 0.000 0.000 0.000 83.98 246.4 74.39 276.2 74.74 8.900" 3.994& 0.000 22
23 0.000 0.000 0.000 0.000 49.12 111.0 65.04 194.8 63.54 8.565" 2.858& 0.000 23
24 0.000 0.000 0.000 0.000 36.90 76.43 57.63 156.5 53.87 8.518" 2.404& 0.000 24
25 0.000 0.000 0.000 0.000 63.52 84.89 52.77 124.5 46.24 8.236" 2.254& 0.000 25
26 0.000 0.000 0.000 0.000 230.5 122.2 72.37 109.0 41.53 7.843 2.050& 0.000 26
27 0.000 0.000 0.000 0.000 296.9 75.29 100.4 98.03 38.39 6.686 1.797& 0.000 27
28 0.000 0.000 0.000 0.000 356.6 57.17 89.59 87.65 35.50 5.940& 1.436& 0.000 28
29 0.000 0.000 0.000 0.000 165.7 47.84 76.72 81.87 31.20 6.098 1.176& 0.000 29
30 0.000 0.000 0.000 95.79 42.18 64.27 142.4 29.79 5.077& 0.908& 0.000 30
31 0.000 0.000 73.56 56.49 127.5 7.306& 0.000 31
Mean 0.000 0.000 0.000 0.000 72.52 & 81.97 169.6 336.2 " 311.7 & 24.49 & 16.31 & 0.189&
Median 0.000 0.000 0.000 0.000 34.54 & 58.25 91.16 252.5 " 152.3 & 20.86 & 8.069& 0.027&
Maximum 0.000 0.000 0.000 0.000 356.6 & 246.4 915.0 1394 "2155 & 66.32 & 128.3 & 0.694&
Minimum 0.000 0.000 0.000 0.000 0.000& 30.82 40.72 51.70 " 29.79 & 5.077& 0.908& 0.000&
Total 0.00 0.00 0.00 0.00 2248 & 2459 5257 10423 " 9351 & 759.1 & 489.4 & 5.86&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 84.68 & " ... Relative Uncertainty +/-10%
Ann. Median 8.373& & ... Relative Uncertainty +/-30%
Annual Total 30992 &
Maximum Minimum
Daily 2155 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 472.5 76.54 114.5 46.68 3.699& 0.000 1
2 0.000 0.000 0.000 0.000 0.000 0.000 233.9 84.57 81.41 36.91 2.405& 0.000 2
3 0.000 0.000 0.000 0.000 0.000 0.000 86.08 204.8 66.92 29.93 3.239& 0.000 3
4 0.000 0.000 0.000 0.000 0.000 0.000 81.72 311.6 57.84 29.96 7.529& 0.000 4
5 0.000 0.000 0.000 0.000 0.000 0.000 61.77 472.9 51.23 30.46 5.920& 0.000 5
6 0.000 0.000 0.000 0.000 0.000 0.000 37.33 524.0 45.97 25.15 3.233& 0.000 6
7 0.000 0.000 0.000 0.000 0.000 0.000 27.12 211.4 40.95 20.46 1.975& 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.702& 22.12 140.4 38.14 17.64 1.977& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 6.702 20.02 208.7 41.62 16.50 3.781& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 5.042& 19.57 195.4 44.36 15.61 6.612 0.000 10
11 0.000 0.000 0.000 0.000 0.000 5.721& 28.40 141.3 38.85 12.64 4.990& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 4.939& 41.99 128.5 34.10 11.54 3.106& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 5.004& 197.7 131.1 29.97 22.26 1.985& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 4.461& 753.0 92.94 30.05 33.86 1.325& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 3.833& 208.8 75.80 34.33 21.03 0.965& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 3.744& 97.85 64.07 30.13 16.26 0.664& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 3.704& 68.76 53.21 33.70 13.13 0.408& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 3.534& 149.3 98.16 75.01 10.95 0.264& 0.000 18
19 0.000 0.000 0.000 0.000 0.000 3.435& 192.9 781.4 57.12 9.597 0.167& 0.000 19
20 0.000 0.000 0.000 0.000 0.000 3.317& 258.5 947.6 36.01 8.334 0.164& 0.000 20
21 0.000 0.000 0.000 0.000 0.000 3.137& 136.5 365.3 31.17 8.013 0.085& 0.000 21
22 0.000 0.000 0.000 0.000 0.000 3.666& 85.41 201.6 217.3 8.473 0.049& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 16.09 68.61 177.5 192.2 6.948 0.022& 0.000 23
24 0.000 0.000 0.000 0.000 0.000 11.50 79.91 305.3 101.2 5.662& 0.003& 0.000 24
25 0.000 0.000 0.000 0.000 0.000 15.47 148.4 373.0 74.29 4.775& 0.000 0.000 25
26 0.000 0.000 0.000 0.000 0.000 18.98 98.46 279.7 57.06 4.172& 0.000 0.000 26
27 0.000 0.000 0.000 0.000 0.000 12.84 403.0 508.7 42.21 4.176& 0.000 0.000 27
28 0.000 0.000 0.000 0.000 0.000 9.245 364.7 238.2 34.32 6.554& 0.000 0.000 28
29 0.000 0.000 0.000 0.000 8.258 158.6 154.5 53.20 9.828 0.000 0.000 29
30 0.000 0.000 0.000 0.000 23.14 105.4 128.0 52.59 6.961 0.000 0.000 30
31 0.000 0.000 0.000 82.18 129.8 4.958& 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 5.882& 154.5 251.8 61.25 16.11 & 1.819& 0.000
Median 0.000 0.000 0.000 0.000 0.000 3.789& 97.85 195.4 45.16 12.64 & 0.814& 0.000
Maximum 0.000 0.000 0.000 0.000 0.000 23.14 & 753.0 947.6 217.3 46.68 & 7.529& 0.000
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 19.57 53.21 29.97 4.172& 0.000& 0.000
Total 0.000 0.000 0.000 0.000 0.000 176.5 &4791 7806 1838 499.4 & 54.56 & 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 41.55 & & ... Relative Uncertainty +/-30%
Ann. Median 0.000&
Annual Total 15165 &
Maximum Minimum
Daily 947.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000& 0.000 0.000 10.47 370.2 2062 " 181.9 44.15 12.83 0.134& 1
2 0.000 0.000 0.000 0.000 0.000 9.373 277.3 1022 " 152.0 39.60 11.64 0.805& 2
3 0.000 0.000 0.000 0.000 0.000 8.488 583.2 431.0 142.5 37.05 11.14 0.917& 3
4 0.000 0.000 0.000 0.000 0.000 7.922 606.7 290.0 131.9 38.89 12.82 0.683& 4
5 0.000 0.000 0.000 0.000 0.000 7.649 370.8 222.7 118.3 49.69 14.05 0.494& 5
6 0.000 0.000 0.000 0.000 0.000 8.119 465.7 217.4 102.4 54.95 13.36 0.325& 6
7 0.000 0.000 0.000 0.000 0.000 8.260 379.3 321.9 90.37 48.27 10.67 0.162& 7
8 0.000 0.000 0.000 0.000 0.000 8.023 211.6 809.4 " 79.95 41.14 8.774 0.102& 8
9 0.000 0.000 0.000 0.000 0.000 7.962 162.4 1017 " 74.63 37.87 7.912 0.044& 9
10 0.000 0.000 0.000 0.000 0.000 15.42 128.6 479.6 71.47 35.48 8.054 0.003& 10
11 0.000 0.000 0.000 0.000 0.000 15.29 108.7 408.8 74.54 32.29 7.043 0.000& 11
12 0.000 0.000 0.000 0.000 0.000 12.60 95.97 514.9 73.48 69.61 6.101 0.000 12
13 0.000 0.000 0.000 0.000 0.000 10.70 151.1 292.3 66.43 214.8 5.721 0.000 13
14 0.000 0.000 0.000 0.000 0.000 10.88 1068 " 256.6 67.46 133.7 5.931 0.000 14
15 0.000 0.000 0.000 0.000 0.778& 39.50 1920 " 815.0 334.5 86.88 5.811& 0.000 15
16 0.000 0.000 0.000 0.000 3.271& 99.96 845.2 " 387.2 357.1 74.08 5.130& 0.000 16
17 0.000 0.000 0.000 0.000 2.506& 149.3 354.4 504.3 " 174.5 99.75 4.484& 0.000 17
18 0.000 0.000 0.000 0.000 2.144& 54.07 259.1 1537 " 143.3 102.5 3.789& 0.000 18
19 0.000 0.000 0.000 0.000 2.001& 32.69 199.3 740.9 " 152.0 71.95 2.905& 0.000 19
20 0.000 0.000 0.000 0.000 10.72 & 24.31 154.7 665.4 133.2 57.02 2.130& 0.000 20
21 0.000 0.000 0.000 0.000 67.48 19.80 212.0 519.3 139.2 44.40 1.466& 0.000 21
22 0.000 0.631& 0.000 0.000 87.17 17.42 1926 "1174 " 116.7 35.13 1.041& 0.000 22
23 0.000 12.81 0.000 0.000 29.48 19.62 1985 " 809.4 95.74 28.62 0.842& 0.000 23
24 0.000 3.451& 0.000 0.000 16.71 24.57 1024 " 708.2 79.27 25.43 0.608& 0.000 24
25 0.000 0.971& 0.000 0.000 14.26 514.8 486.7 947.1 72.96 22.63 0.417& 0.000 25
26 0.000 0.272& 0.000 0.000 55.08 487.8 297.5 483.1 70.29 20.38 0.265& 0.000 26
27 0.000 0.096& 0.000 0.000 38.48 936.3 " 213.0 334.1 61.37 18.79 0.246& 0.000 27
28 0.000 0.013& 0.000 0.000 30.02 1335 " 170.3 365.1 52.42 16.62 0.385& 0.000 28
29 0.000 0.000 0.000 19.33 1592 " 142.4 301.0 52.72 15.25 0.244& 0.000 29
30 0.000 0.000 0.000 14.55 975.7 " 701.7 " 240.0 51.55 14.72 0.172& 0.000 30
31 0.000 0.000 11.57 2693 & 211.5 14.29 0.000 31
Mean 0.000 0.652& 0.000& 0.000 13.08 & 215.5 " 598.8 & 615.8 " 117.1 52.45 5.533& 0.118&
Median 0.000 0.000& 0.000& 0.000 2.001& 18.52 " 354.4 & 483.1 " 93.05 39.60 5.425& 0.000&
Maximum 0.000 12.81 & 0.000& 0.000 87.17 &1592 "2693 &2062 " 357.1 214.8 14.05 & 0.917&
Minimum 0.000 0.000& 0.000& 0.000 0.000& 7.649" 95.97 & 211.5 " 51.55 14.29 0.172& 0.000&
Total 0.00 18.25& 0.00& 0.00 405.6 & 6464 "18564 &19089 " 3514 1626 166.0 & 3.67&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 136.6 & " ... Relative Uncertainty +/-10%
Ann. Median 4.484& & ... Relative Uncertainty +/-30%
Annual Total 49849 &
Maximum Minimum
Daily 2693 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 6.809 103.9 1257 " 120.2 42.45 30.02 19.44 1
2 0.000 0.000 0.000 0.000 0.000 6.559 89.10 495.9 101.7 35.64 28.84 10.55 2
3 0.000 0.000 0.000 0.000 0.000 6.476 333.2 311.6 89.53 31.77 19.67 6.225& 3
4 0.000 0.000 0.000 0.000 0.000 7.335 855.7 227.5 80.58 31.64 13.96 3.633& 4
5 0.000 0.000 0.000 0.000 0.000 9.854 275.4 176.1 73.94 29.43 10.32 2.491& 5
6 0.000 0.000 0.000 0.000 0.000 12.62 159.2 144.9 65.99 29.57 8.975 1.782& 6
7 0.000 0.000 0.000 0.000 0.000 71.90 121.4 123.2 58.09 38.69 7.422 1.438& 7
8 0.000 0.000 0.000 0.000 0.000 58.54 536.8 103.4 53.61 31.69 6.114& 0.857& 8
9 0.000 0.000 0.000 0.000 142.2 & 43.93 393.1 87.91 49.78 26.11 4.467& 0.540& 9
10 0.000 0.000 0.000 0.000 133.0 71.52 195.8 80.95 45.73 21.10 3.091& 0.374& 10
11 0.000 0.000 0.000 0.000 79.94 59.79 143.5 75.80 41.14 16.44 2.612& 0.232& 11
12 0.000 0.000 0.000 0.000 41.70 33.65 115.8 79.74 37.92 14.77 2.149& 0.126& 12
13 0.000 0.000 0.000 0.000 23.33 25.79 114.8 276.3 34.07 15.34 1.820& 0.053& 13
14 0.000 0.000 0.000 0.000 16.72 21.95 123.1 224.2 30.21 19.44 1.983& 0.019& 14
15 0.000 0.000 0.000 0.000 13.86 30.79 112.6 153.9 27.15 22.77 2.064& 0.004& 15
16 0.000 0.000 0.000 0.000 11.72 84.14 153.0 124.3 24.84 21.21 2.730& 0.000& 16
17 0.000 0.000 0.000 0.000 10.40 104.8 169.3 104.9 23.62 19.38 2.874& 0.000 17
18 0.000 0.000 0.000 0.000 9.422 180.7 119.1 90.28 25.56 17.77 3.052& 0.000 18
19 0.000 0.000 0.000 0.000 8.842 631.7 92.17 77.92 37.46 14.31 2.721& 0.000 19
20 0.000 0.000 0.000 0.000 9.030 820.3 75.89 106.9 40.18 13.13 2.151& 0.000 20
21 0.000 0.000 0.000 0.000 9.462 474.9 67.24 801.4 34.35 12.79 1.997& 0.000 21
22 0.000 0.000 0.000 0.000 11.05 395.8 76.65 626.4 29.98 12.35 2.506& 0.000 22
23 0.000 0.000 0.000 0.000 11.28 330.9 158.0 279.5 70.26 11.60 2.304& 0.000 23
24 0.000 0.000 0.000 0.000 11.27 203.2 259.0 195.1 131.8 11.24 1.729& 0.000 24
25 0.000 0.000 0.000 0.000 10.08 179.7 137.2 572.7 " 80.92 12.07 1.437& 0.000 25
26 0.000 0.000 0.000 0.000 10.05 313.0 96.59 1712 " 122.1 9.413 1.019& 0.000 26
27 0.000 0.000 0.000 0.000 9.641 207.1 79.41 739.3 " 241.2 8.566 0.764& 0.000 27
28 0.000 0.000 0.000 0.000 8.944 146.8 234.8 357.4 124.4 7.745 0.544& 0.000 28
29 0.000 0.000 0.000 8.058 145.4 3567 & 257.3 77.31 6.879 1.014& 0.000 29
30 0.000 0.000 0.000 7.337 135.0 2998 & 185.1 56.89 6.631 22.51 & 0.000 30
31 0.000 0.000 6.819 2165 " 145.3 9.153 0.000 31
Mean 0.000 0.000 0.000 0.000 19.49 & 160.7 455.6 & 328.8 " 67.68 19.39 6.429& 1.541&
Median 0.000 0.000 0.000 0.000 9.462& 78.02 143.5 & 185.1 " 55.25 16.44 2.666& 0.000&
Maximum 0.000 0.000 0.000 0.000 142.2 & 820.3 3567 &1712 " 241.2 42.45 30.02 & 19.44 &
Minimum 0.000 0.000 0.000 0.000 0.000& 6.476 67.24 & 75.80 " 23.62 6.631 0.544& 0.000&
Total 0.00 0.00 0.00 0.00 604.1 & 4821 14122 &10193 " 2030 601.1 192.9 & 47.76&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 89.35 & " ... Relative Uncertainty +/-10%
Ann. Median 6.809& & ... Relative Uncertainty +/-30%
Annual Total 32613 &
Maximum Minimum
Daily 3567 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 267.9 55.34 122.1 143.6 254.9 22.85 1.374& 1
2 0.000 0.000 0.000 0.000 0.000 617.4 47.81 109.9 119.5 149.0 34.86 1.521& 2
3 0.000 0.000 0.000 0.000 0.000 443.7 42.80 96.78 102.9 153.1 31.48 4.786& 3
4 0.000 0.000 0.000 0.000 0.000 214.8 39.54 86.28 89.24 482.4 24.56 9.153 4
5 0.000 0.000 0.000 0.000 0.000 96.83 41.89 77.17 82.03 572.5 20.37 6.648& 5
6 0.000 0.000 0.000 0.000 0.000 70.81 63.96 68.66 103.9 382.5 18.11 4.118& 6
7 0.000 0.000 0.000 0.000 0.000 70.48 126.5 63.16 113.3 339.5 ! 30.24 2.671& 7
8 0.000 0.000 0.000 0.000 0.000 100.9 281.3 59.08 103.5 257.7 ! 47.66 1.897& 8
9 0.000 0.000 0.000 0.000 0.000 107.7 226.4 57.07 125.1 186.4 ! 37.50 1.317& 9
10 0.000 0.000 0.000 0.000 0.000 115.5 139.3 75.57 148.0 131.9 ! 26.41 0.975& 10
11 0.000 0.000 0.000 0.000 0.000 117.2 101.8 110.0 110.0 97.21 ! 20.23 0.627& 11
12 0.000 0.000 0.000 0.000 0.000 81.64 102.5 403.9 90.32 72.77 ! 27.19 0.391& 12
13 0.000 0.000 0.000 0.000 0.000 68.20 686.4 691.9 77.55 61.14 ! 25.09 0.212& 13
14 0.000 0.000 0.000 0.000 10.08 & 69.49 377.7 654.4 " 73.85 56.31 ! 18.51 0.097& 14
15 0.000 0.000 0.000 0.000 25.71 64.08 369.0 1626 " 94.04 53.29 ! 13.77 0.036& 15
16 0.000 0.000 0.000 0.000 14.94 191.5 294.0 1535 " 95.77 44.68 ! 10.80 0.006& 16
17 0.000 0.000 0.000 0.000 10.28 258.9 207.0 885.4 " 72.49 39.42 ! 9.270 0.000 17
18 0.000 0.000 0.000 0.000 12.08 242.7 340.0 411.0 61.05 37.92 ! 8.105 0.000 18
19 0.000 0.000 0.000 0.000 22.23 128.9 211.5 286.2 53.60 35.86 ! 7.302 0.000 19
20 0.000 0.000 0.000 0.000 15.41 147.1 137.7 282.2 51.03 35.85 ! 6.515 0.000 20
21 0.000 0.000 0.000 0.000 57.62 108.7 105.7 291.6 53.25 35.37 ! 6.150 0.000 21
22 0.000 0.000 0.000 0.000 47.60 73.85 88.54 196.4 75.48 34.96 ! 5.540& 0.000 22
23 0.000 0.000 0.000 0.000 25.00 59.66 501.8 " 154.6 105.6 34.19 ! 5.288& 0.000 23
24 0.000 0.000 0.000 0.000 21.12 51.94 3250 & 137.5 79.16 32.74 ! 6.011 0.000 24
25 0.000 0.000 0.000 0.000 19.15 252.4 2278 & 279.8 68.46 31.10 ! 5.103& 0.000 25
26 0.000 0.000 0.000 0.000 17.73 432.8 1051 " 379.4 86.15 29.66 ! 3.598& 0.000 26
27 0.000 0.000 0.000 0.000 20.79 182.8 453.7 189.3 77.88 27.87 2.701& 0.000 27
28 0.000 0.000 0.000 0.000 17.70 111.3 291.7 135.7 89.79 25.14 2.329& 0.000 28
29 0.000 0.000 0.000 0.000 15.20 82.59 217.1 240.0 247.4 22.82 1.847& 0.000 29
30 0.000 0.000 0.000 13.28 65.83 166.5 347.2 672.7 21.34 1.552& 0.000 30
31 0.000 0.000 14.25 139.0 197.6 19.92 0.000 31
Mean 0.000 0.000 0.000 0.000 12.26 & 163.2 401.1 & 330.7 " 115.6 121.3 ! 16.03 & 1.156&
Median 0.000 0.000 0.000 0.000 12.08 & 110.0 207.0 & 196.4 " 90.05 44.68 ! 12.29 & 0.006&
Maximum 0.000 0.000 0.000 0.000 57.62 & 617.4 3250 &1626 " 672.7 572.5 ! 47.66 & 9.153&
Minimum 0.000 0.000 0.000 0.000 0.000& 51.94 39.54 & 57.07 " 51.03 19.92 ! 1.552& 0.000&
Total 0.00 0.00 0.00 0.00 380.1 & 4897 12435 &10251 " 3467 3759 ! 480.9 & 35.83&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 97.56 ! ! ... Not reviewed / Quality not known
Ann. Median 12.68 ! " ... Relative Uncertainty +/-10%
Annual Total 35706 ! & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 3250 ! 0.000!
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 37.67 93.93 187.1 102.8 51.54 24.13 0.000" 1
2 0.000 0.000 0.000 0.000 0.000 22.25 100.6 151.1 93.12 161.5 19.47 0.000" 2
3 0.000 0.000 0.000 0.000 0.000 17.24 121.9 230.9 81.87 298.1 16.39 0.000" 3
4 0.000 0.000 0.000 0.000 0.000 16.20 84.79 244.5 67.28 146.5 14.15 0.000" 4
5 0.000 0.000 0.000 0.000 0.000 14.96 54.11 176.4 57.76 100.9 11.50 0.000 5
6 0.000 0.000 0.000 0.000 0.000 13.72 40.53 137.6 52.93 93.46 9.765 0.000 6
7 0.000 0.000 0.000 0.000 0.000 16.24 35.92 108.0 98.44 101.7 8.511 0.000 7
8 0.000 0.000 0.000 0.000 0.000 16.19 90.80 88.44 135.4 92.44 7.236 0.000 8
9 0.000 0.000 0.000 0.000 0.000 15.00 105.0 77.96 99.60 70.97 6.844 0.000 9
10 0.000 0.000 0.000 0.000 0.000 11.50 63.91 70.00 72.30 58.79 6.670 0.000 10
11 0.000 0.000 0.000 0.000 0.000 12.02 51.66 61.41 57.56 49.33 7.262" 0.000 11
12 0.000 0.000 0.000 0.000 0.000 24.20 44.22 54.42 47.53 40.69 5.474& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 29.06 57.72 49.04 39.82 37.82 3.832& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 29.16 129.3 48.31 34.74 40.98 2.895& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 31.69 156.3 48.52 36.67 40.17 2.308& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 24.84 92.87 46.55 39.74 34.82 1.859& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 21.25 69.79 39.59 36.67 34.74 1.467& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 20.53 56.25 492.4 34.16 154.5 1.091& 0.000 18
19 0.000 0.000 0.000 0.000 0.000 18.82 49.86 632.2 33.98 151.9 0.803& 0.000 19
20 0.000 0.000 0.000 0.000 0.000 16.85 190.3 243.7 55.01 76.61 0.521& 0.000 20
21 0.000 0.000 0.000 0.000 0.000 15.62 457.0 173.5 104.6 54.33 0.318& 0.000 21
22 0.000 0.000 0.000 0.000 0.000 14.70 409.9 120.3 122.9 44.88 0.180& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 13.96 255.2 89.99 91.37 36.29 0.078& 0.000 23
24 0.000 0.000 0.000 0.000 47.95 & 13.33 219.8 81.05 79.17 30.71 0.021& 0.000 24
25 0.000 0.000 0.000 0.000 38.62 13.04 338.9 81.14 66.21 31.49 0.005& 0.000 25
26 0.000 0.000 0.000 0.000 15.86 12.93 177.9 68.70 50.83 29.74 0.000& 0.000 26
27 0.000 0.000 0.000 0.000 15.04 12.66 266.5 60.51 41.02 28.06 0.000" 0.000 27
28 0.000 0.000 0.000 0.000 25.83 36.86 563.4 62.24 59.51 24.98 0.000" 0.000 28
29 0.000 0.000 0.000 39.52 92.71 567.7 70.20 71.48 25.17 0.000" 0.000 29
30 0.000 0.000 0.000 31.34 107.0 483.9 199.2 58.90 30.55 0.000" 0.000 30
31 0.000 0.000 47.94 281.2 164.4 30.90 0.000 31
Mean 0.000 0.000 0.000 0.000 8.455& 24.74 184.2 140.6 67.44 71.12 5.092& 0.000"
Median 0.000 0.000 0.000 0.000 0.000& 16.54 105.0 88.44 59.21 44.88 2.084& 0.000"
Maximum 0.000 0.000 0.000 0.000 47.95 & 107.0 567.7 632.2 135.4 298.1 24.13 & 0.000"
Minimum 0.000 0.000 0.000 0.000 0.000& 11.50 35.92 39.59 33.98 24.98 0.000& 0.000"
Total 0.000 0.000 0.000 0.000 262.1 & 742.2 5711 4359 2023 2205 152.8 & 0.000"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 42.34 & " ... Relative Uncertainty +/-10%
Ann. Median 0.180& & ... Relative Uncertainty +/-30%
Annual Total 15456 &
Maximum Minimum
Daily 632.2 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 54.51 ! 0.000 4.796& 13.86 60.86 " 25.56 110.0 132.6 38.95 24.74 0.078& 1
2 0.000 29.97 ! 0.000 5.078& 12.98 54.85 " 24.12 868.4 " 113.3 33.98 22.49 0.040& 2
3 0.000 18.24 ! 0.000 4.841& 12.43 51.68 " 22.99 945.6 " 97.83 33.15 20.29 0.024& 3
4 0.000 11.91 ! 0.000 4.766& 13.74 48.24 " 22.85 863.1 84.20 30.94 17.55 0.074& 4
5 0.000 8.359! 0.000 4.659& 18.60 46.37 " 23.34 482.2 73.56 27.54 15.15 0.046& 5
6 0.000 6.511! 0.000 4.282& 16.30 63.86 " 23.25 293.2 65.14 25.41 13.24 0.019& 6
7 0.000 17.47 ! 0.000 3.617& 13.93 70.60 " 22.77 356.1 64.29 29.77 11.85 0.009& 7
8 0.000 5.863! 0.000 3.236& 13.80 113.5 " 22.82 281.3 76.22 29.90 10.93 0.001& 8
9 0.000 4.450! 0.000 2.432& 14.19 138.0 22.74 180.0 79.51 29.71 10.28 0.000 9
10 0.000 4.038! 0.000 2.089& 14.30 77.16 86.32 158.1 156.5 43.11 8.974 0.000 10
11 0.000 3.783! 0.000 3.238& 13.64 101.3 192.2 152.8 149.0 48.18 7.628 0.000 11
12 0.000 3.302! 161.9 & 15.88 13.17 78.53 247.5 144.6 96.05 37.64 6.437 0.000 12
13 0.000 2.926! 128.9 12.09 13.58 59.35 905.5 284.4 80.07 94.05 5.903 0.000 13
14 0.000 2.926! 27.81 8.288 14.76 98.90 329.4 227.3 66.66 169.6 5.661& 0.000 14
15 0.000 20.76 ! 12.92 6.527 24.45 163.2 535.5 151.9 55.82 91.85 5.460& 0.000 15
16 0.000 50.04 ! 9.100 6.044 28.52 87.82 1014 " 117.2 55.91 64.80 5.235& 0.000 16
17 0.000 5.258! 6.850& 5.426& 20.87 61.43 1102 " 154.5 59.56 53.73 5.402& 0.000 17
18 0.000 3.518! 4.631& 4.356& 18.16 50.70 504.9 1027 " 87.55 42.91 5.161& 0.000 18
19 0.000 2.812! 3.835& 4.174& 16.76 43.95 264.9 790.5 87.94 35.58 5.036& 0.000 19
20 0.000 2.089! 3.185& 47.48 15.34 38.24 290.7 447.4 77.78 30.16 5.964& 0.000 20
21 0.000 1.416! 2.951& 39.29 13.72 33.40 342.8 329.6 66.02 26.65 6.935 0.000 21
22 0.000 0.916! 2.942& 24.46 12.38 29.46 481.0 225.8 59.19 22.83 5.513& 0.000 22
23 0.000 0.663! 2.981& 26.04 11.31 28.20 765.2 158.4 73.12 20.09 4.729& 0.000 23
24 0.000 0.421! 2.596& 25.67 10.59 30.95 940.5 124.6 177.3 17.98 3.450& 0.000 24
25 0.000! 0.222! 2.849& 26.88 9.983 29.32 1142 " 104.3 206.0 16.21 2.386& 0.000 25
26 0.000! 0.100! 12.21 & 21.47 10.15 27.71 590.7 95.06 111.8 15.57 1.564& 0.000 26
27 0.000! 0.024! 22.10 19.22 17.07 26.60 292.4 94.71 81.02 14.50 0.999& 0.000 27
28 0.003! 0.002& 12.97 18.72 40.35 " 25.84 211.3 144.4 65.22 12.94 0.598& 0.000 28
29 460.3 ! 8.417 16.59 86.15 " 26.05 177.5 171.8 53.40 14.69 0.302& 0.000 29
30 183.1 ! 6.023& 14.94 81.64 " 26.70 168.6 288.5 44.86 27.29 0.158& 0.000 30
31 98.31 ! 4.745& 70.55 " 133.9 188.9 28.99 0.000 31
Mean 23.93 ! 9.374! 14.19 & 12.89 & 22.17 " 59.76 " 352.6 " 321.3 " 89.92 38.99 8.001& 0.009&
Median 0.000! 3.651! 2.981& 6.285& 14.19 " 51.19 " 247.5 " 188.9 " 78.64 29.90 5.782& 0.000&
Maximum 460.3 ! 54.51 ! 161.9 & 47.48 & 86.15 " 163.2 "1142 "1027 " 206.0 169.6 24.74 & 0.078&
Minimum 0.000! 0.002! 0.000& 2.089& 9.983" 25.84 " 22.74 " 94.71 " 44.86 12.94 0.158& 0.000&
Total 741.7 ! 262.5 ! 439.9 & 386.6 & 687.3 " 1793 "10929 " 9961 " 2697 1209 240.0 & 0.29&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 80.41 ! ! ... Not reviewed / Quality not known
Ann. Median 17.47 ! " ... Relative Uncertainty +/-10%
Annual Total 29348 ! & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 1142 ! 0.000!
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 44.49 217.6 1133 " 105.2 95.95 16.31 4.771& 1
2 0.000 0.000 0.000 0.000 0.000 23.38 445.1 1523 " 93.46 78.66 14.82 4.293& 2
3 0.000 0.000 0.000 0.000 0.000 18.00 959.9 "1460 " 87.40 63.29 14.97 3.771& 3
4 0.000 0.000 0.000 0.000 0.000 196.5 963.7 "1315 " 85.42 55.93 16.76 3.306& 4
5 0.000 0.000 0.000 0.000 0.000 279.4 359.6 917.8 87.53 71.27 49.41 2.605& 5
6 0.000 0.000 0.000 0.000 0.000 191.8 408.1 561.1 81.01 72.53 70.86 2.167& 6
7 0.000 0.000 0.000 0.000 0.000 84.68 309.3 372.2 102.1 57.52 43.10 1.911& 7
8 0.000 0.000 0.000 0.000 0.000 50.66 202.4 299.8 208.1 49.73 31.61 1.666& 8
9 0.000 0.000 0.000 0.000 0.000 35.61 169.2 250.1 743.1 44.33 25.69 1.372& 9
10 0.000 0.000 0.000 0.000 0.000 32.50 193.4 212.0 282.5 39.40 21.92 1.082& 10
11 0.000 0.000 0.000 0.000 0.000 61.35 173.7 179.7 160.8 34.77 18.92 0.683& 11
12 0.000 0.000 0.000 0.000 0.000 53.35 143.5 153.4 173.4 32.31 16.39 0.390& 12
13 0.000 0.000 0.000 0.000 0.000 86.39 138.0 133.1 265.8 31.26 36.67 0.191& 13
14 0.000 0.000 0.000 0.000 0.000 342.7 149.4 122.7 720.4 28.19 104.1 0.059& 14
15 0.000 0.000 0.000 0.000 0.000 922.6 169.7 113.6 775.4 25.38 88.57 0.010& 15
16 0.000 0.000 0.000 0.000 0.000 1113 " 929.1 " 104.7 835.5 24.13 71.49 0.000& 16
17 0.000 0.000 0.000 0.000 0.000 893.1 2257 " 100.4 338.5 23.00 48.62 0.000 17
18 0.000 0.000 0.000 0.000 0.000 407.6 1703 " 133.6 259.1 23.56 37.23 0.000 18
19 0.000 0.000 0.000 0.000 0.000 208.9 1464 " 173.7 408.9 75.65 28.76 0.000 19
20 0.000 0.000 0.000 0.000 0.000 150.4 1656 " 145.5 337.3 92.81 22.06 0.000 20
21 0.000 0.000 0.000 0.000 0.000 116.3 2569 & 121.8 209.9 79.36 16.88 0.000 21
22 0.000 0.000 0.000 0.000 0.000 98.02 2284 & 109.6 158.1 53.35 12.99 0.000 22
23 0.000 0.000 0.000 0.000 0.000 301.3 956.7 " 123.5 125.1 40.52 10.65 0.000 23
24 0.000 0.000 0.000 0.000 0.000 741.5 " 787.3 107.5 105.7 33.13 9.950 0.000 24
25 0.000 0.000 0.000 0.000 0.000 2177 & 617.2 90.83 91.97 28.10 10.50 1.558& 25
26 0.000 0.000 0.000 0.000 0.000 1044 " 498.5 91.60 81.36 24.84 11.23 30.50 26
27 0.000 0.000 0.000 0.000 0.000 706.3 " 919.8 210.5 72.01 22.11 9.826 20.78 27
28 0.000 0.000 0.000 0.000 0.000 1226 " 461.4 259.9 64.80 20.05 8.335 12.62 28
29 0.000 0.000 0.000 0.000 600.2 456.0 209.3 60.02 19.11 6.909 8.004 29
30 0.000 0.000 0.000 0.000 292.1 726.2 144.7 67.10 19.24 5.822& 5.456& 30
31 0.000 0.000 35.23 & 718.5 118.3 17.79 4.087& 31
Mean 0.000 0.000 0.000 0.000 1.136& 416.6 & 774.4 & 354.6 " 239.6 44.43 29.38 & 3.590&
Median 0.000 0.000 0.000 0.000 0.000& 202.7 & 498.5 & 153.4 " 141.6 34.77 17.90 & 1.372&
Maximum 0.000 0.000 0.000 0.000 35.23 &2177 &2569 &1523 " 835.5 95.95 104.1 & 30.50 &
Minimum 0.000 0.000 0.000 0.000 0.000& 18.00 & 138.0 & 90.83 " 60.02 17.79 5.822& 0.000&
Total 0.00 0.00 0.00 0.00 35.23&12499 &24006 &10991 " 7187 1377 881.3 & 111.3 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 156.4 & " ... Relative Uncertainty +/-10%
Ann. Median 9.950& & ... Relative Uncertainty +/-30%
Annual Total 57089 &
Maximum Minimum
Daily 2569 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 3.301& 0.000 0.037& 0.076& 3.714& 18.00 612.1 103.5 821.0 57.74 8.847 14.68 1
2 2.426& 0.000 0.005& 0.033& 3.121& 16.43 394.7 217.7 753.7 66.27 6.907 14.56 2
3 1.550& 0.000 0.000& 0.010& 3.214& 16.54 411.2 353.2 2279 & 97.94 5.682& 12.48 3
4 0.930& 0.000 0.000 0.002& 3.689& 16.93 335.3 440.1 2312 & 83.59 4.367& 9.893 4
5 0.486& 0.000 0.000 0.000 4.189& 17.72 261.9 1517 "1140 " 94.61 3.372& 7.451 5
6 0.228& 0.000 0.000 0.000 14.97 16.92 199.0 1340 " 905.5 121.4 3.260& 4.818& 6
7 0.059& 0.000 0.000 0.000 34.29 17.63 154.6 845.2 459.7 100.7 5.633& 2.900& 7
8 0.004& 0.764& 0.000 0.000 25.17 19.11 130.8 428.3 334.9 77.94 15.15 2.354& 8
9 0.000 336.4 & 0.000 0.000 16.30 18.07 118.9 779.1 " 393.1 67.16 13.85 2.322& 9
10 0.000 123.6 0.000 0.285& 12.28 17.19 179.0 1193 " 398.9 61.24 11.80 2.967& 10
11 0.000 43.20 0.000 4.109& 11.27 17.76 181.4 803.2 271.4 55.91 8.382 9.756 11
12 0.000 23.45 0.000 2.824& 10.38 53.27 140.3 511.9 215.4 52.94 6.221& 6.424 12
13 0.000 15.79 0.000 1.863& 9.706 129.2 547.0 343.5 196.6 53.47 6.046& 4.706& 13
14 0.000 11.69 0.000 1.244& 9.864 115.4 762.3 259.9 193.0 49.52 14.71 3.272& 14
15 0.000 10.94 0.000 0.800& 11.82 179.5 260.1 699.9 " 161.5 45.14 21.21 2.190& 15
16 0.000 14.73 0.000 0.528& 11.60 210.9 178.4 1300 " 145.1 42.60 15.64 1.166& 16
17 0.000 13.86 0.000 0.612& 9.675 201.9 460.2 816.1 " 131.6 38.73 11.52 0.388& 17
18 0.000 11.91 0.000 0.842& 8.173 331.0 391.3 332.6 116.5 35.06 11.44 0.182& 18
19 0.000 10.53 0.000 1.899& 7.755 182.1 374.5 246.8 106.3 31.91 26.04 0.070& 19
20 0.000 8.890 0.000 1.866& 7.815 112.6 467.7 202.0 107.7 28.82 127.0 0.024& 20
21 0.000 7.702 1.380& 1.814& 8.522 160.3 282.2 170.7 110.9 26.00 122.3 0.008& 21
22 0.000 6.057& 6.547 1.440& 12.11 200.9 193.6 145.6 125.3 21.66 72.32 0.002& 22
23 0.000 4.322& 5.616& 1.213& 26.67 110.5 152.4 126.3 127.4 19.82 49.32 0.000& 23
24 0.000 3.244& 4.350& 0.916& 55.50 123.4 126.7 141.6 104.9 20.00 36.77 0.000 24
25 0.000 2.171& 3.469& 0.664& 54.44 156.2 110.6 289.6 92.37 20.92 28.97 0.000 25
26 0.000 1.332& 2.787& 0.496& 32.51 221.9 115.2 1060 " 86.02 20.64 24.21 0.000 26
27 0.000 0.631& 1.863& 0.566& 25.03 279.7 123.6 790.9 80.75 19.24 20.16 0.000 27
28 0.000 0.290& 1.167& 0.608& 22.13 681.7 139.4 1554 " 76.64 18.04 16.10 0.000 28
29 0.000 0.119& 0.676& 1.374& 21.57 605.2 203.7 1509 " 68.39 16.92 13.51 0.000 29
30 0.000 0.376& 4.184& 22.02 591.6 156.1 794.1 61.59 14.52 13.28 0.000 30
31 0.000 0.171& 20.06 121.3 913.1 11.23 0.000 31
Mean 0.290& 22.47 & 0.918& 1.009& 16.76 & 161.3 267.3 652.5 " 412.6 & 47.47 24.13 & 3.310&
Median 0.000& 4.322& 0.000& 0.638& 11.82 & 119.4 193.6 511.9 " 153.3 & 42.60 13.68 & 1.166&
Maximum 3.301& 336.4 & 6.547& 4.184& 55.50 & 681.7 762.3 1554 "2312 & 121.4 127.0 & 14.68 &
Minimum 0.000& 0.000& 0.000& 0.000& 3.121& 16.43 110.6 103.5 " 61.59 & 11.23 3.260& 0.000&
Total 8.98& 651.6 & 28.45& 30.27& 519.6 & 4840 8285 20228 "12378 & 1472 724.0 & 102.6 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 134.6 & " ... Relative Uncertainty +/-10%
Ann. Median 14.72 & & ... Relative Uncertainty +/-30%
Annual Total 49267 &
Maximum Minimum
Daily 2312 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 56.52 151.2 420.6 327.0 164.2 35.26 1.186& 1
2 0.000 0.000 0.000 0.000 247.5 47.04 217.7 259.0 236.9 341.6 29.05 1.406& 2
3 0.000 0.000 0.000 0.000 167.7 43.41 255.9 193.3 185.5 231.2 23.06 1.329& 3
4 0.000 0.000 0.000 0.000 52.15 36.00 163.2 381.0 441.9 140.6 18.80 0.962& 4
5 0.000 0.000 0.000 0.000 30.59 29.93 135.1 446.8 442.9 112.1 16.18 0.587& 5
6 0.000 0.000 0.000 0.000 24.22 25.84 102.9 1193 " 313.3 94.74 14.52 0.344& 6
7 0.000 0.000 0.000 0.000 19.49 23.43 86.16 1328 "1090 " 83.59 13.95 0.206& 7
8 0.000 0.000 0.000 0.000 16.54 23.48 75.96 847.9 "2095 " 78.42 11.45 0.117& 8
9 0.000 0.000 0.000 0.000 14.08 49.17 68.62 833.4 786.9 " 74.22 9.533 0.079& 9
10 0.000 0.000 0.000 0.000 12.41 47.80 63.97 445.6 319.5 59.49 9.414 0.038& 10
11 0.000 0.000 0.000 0.000 11.31 35.64 66.68 282.8 229.7 52.02 9.843 0.010& 11
12 0.000 0.000 0.000 0.000 10.30 30.13 243.7 626.6 194.2 46.60 11.04 0.002& 12
13 0.000 0.000 0.000 0.000 9.594 26.48 203.6 943.0 " 175.3 40.27 12.43 0.000& 13
14 0.000 0.000 0.000 0.000 8.966 24.43 127.6 365.1 147.7 36.80 13.12 0.000 14
15 0.000 0.000 0.000 0.000 8.779 23.86 104.2 434.9 135.7 42.58 17.01 0.000 15
16 0.000 0.000 0.000 0.000 8.476 40.16 124.8 749.2 147.0 45.11 13.98 0.000 16
17 0.000 0.000 0.000 0.000 8.333 90.39 142.6 357.3 187.8 43.16 11.73 0.000 17
18 0.000 0.000 0.000 0.000 8.937 88.98 92.28 237.0 305.5 37.22 12.12 0.000 18
19 0.000 0.000 0.000 0.000 12.53 81.26 75.56 182.7 303.0 32.52 25.92 0.000 19
20 0.000 0.000 0.000 0.000 22.03 59.90 66.99 152.2 184.4 29.48 27.47 0.000 20
21 0.000 0.000 0.000 0.000 18.40 49.90 61.41 133.2 144.9 28.45 17.27 0.000 21
22 0.000 0.000 0.000 0.000 14.39 42.47 90.48 117.3 121.8 25.52 11.69 0.000 22
23 0.000 0.000 0.000 0.000 12.96 37.34 120.4 106.7 124.2 24.13 8.291 0.000 23
24 0.000 0.000 0.000 0.000 12.25 33.20 89.56 98.73 125.3 22.22 5.809& 0.000 24
25 0.000 0.000 0.000 0.000 12.25 31.71 77.67 312.5 100.8 22.12 4.531& 0.000 25
26 0.000 0.000 0.000 0.000 12.08 32.55 128.4 608.1 87.12 22.30 3.549& 0.000 26
27 0.000 0.000 0.000 0.000 12.13 307.6 170.8 251.7 80.17 25.45 2.780& 0.000 27
28 0.000 0.000 0.000 0.000 47.03 523.6 187.6 169.8 80.88 28.97 2.237& 0.000 28
29 0.000 0.000 0.000 277.1 323.2 869.8 " 676.2 " 76.44 27.85 1.808& 0.000 29
30 0.000 0.000 0.000 149.6 254.2 1172 "1471 " 129.4 24.92 1.433& 0.000 30
31 0.000 0.000 78.82 826.3 735.4 " 27.08 0.000 31
Mean 0.000 0.000 0.000 0.000 43.26 83.99 205.3 " 495.5 " 310.7 " 66.61 13.18 & 0.202&
Median 0.000 0.000 0.000 0.000 12.96 41.31 124.8 " 381.0 " 185.0 " 40.27 11.93 & 0.000&
Maximum 0.000 0.000 0.000 0.000 277.1 523.6 1172 "1471 "2095 " 341.6 35.26 & 1.406&
Minimum 0.000 0.000 0.000 0.000 0.000 23.43 61.41 " 98.73 " 76.44 " 22.12 1.433& 0.000&
Total 0.00 0.00 0.00 0.00 1341 2520 6364 "15360 " 9320 " 2065 395.3 & 6.27&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 102.4 & " ... Relative Uncertainty +/-10%
Ann. Median 12.53 & & ... Relative Uncertainty +/-30%
Annual Total 37371 &
Maximum Minimum
Daily 2095 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 56.16 497.8 71.19 141.7 42.35 1.578& 0.000 1
2 0.000 0.000 0.000 0.000 0.000 180.6 462.9 67.19 122.7 42.70 1.292& 0.000 2
3 0.000 0.000 0.000 0.000 0.000 122.3 336.4 62.29 94.44 36.62 1.341& 0.000 3
4 0.000 0.000 0.000 0.000 0.000 61.20 256.8 1094 " 75.57 30.96 1.223& 0.000 4
5 0.000 0.000 0.000 0.000 0.000 44.74 172.0 1242 " 63.33 29.15 0.969& 0.000 5
6 0.000 0.000 0.000 0.000 0.000 37.25 144.4 448.8 55.48 27.74 0.637& 0.000 6
7 0.000 0.000 0.000 0.000 0.000 32.86 138.5 262.9 49.34 24.46 0.341& 0.000 7
8 0.000 0.000 0.000 0.000 0.000 39.81 315.8 197.3 43.66 19.95 0.170& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 82.68 763.8 185.6 37.55 17.03 0.083& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 53.66 874.4 381.5 54.73 14.97 0.032& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 42.67 858.4 559.8 271.1 13.98 0.007& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 46.05 568.0 542.3 197.2 13.26 0.000& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 35.73 387.2 335.5 110.9 13.23 0.000 0.000 13
14 0.000 0.000 0.000 0.000 0.000 29.48 441.9 242.0 83.88 18.38 0.000 0.000 14
15 0.000 0.000 0.000 0.000 0.000 26.18 330.5 188.1 68.59 24.97 0.000 0.000 15
16 0.000 0.000 0.000 0.000 0.000 24.43 261.0 152.5 56.21 21.41 0.000 0.000 16
17 0.000 0.000 0.000 0.000 0.000 22.99 230.6 128.9 48.78 17.67 0.000 0.000 17
18 0.000 0.000 0.000 0.000 0.000 23.12 173.9 111.7 43.69 14.50 0.000 0.000 18
19 0.000 0.000 0.000 0.000 0.000 29.09 142.0 97.35 36.25 11.09 0.000 0.000 19
20 0.000 0.000 0.000 0.000 0.000 128.1 121.1 85.76 31.25 9.064 0.000 0.000 20
21 0.000 0.000 0.000 0.000 0.000 365.5 104.7 77.21 28.14 7.910 0.000 0.000 21
22 0.000 0.000 0.000 0.000 0.000 764.2 125.2 78.20 25.89 7.247 0.000 0.000 22
23 0.000 0.000 0.000 0.000 0.000 339.3 230.0 75.30 25.03 6.176 0.000 0.000 23
24 0.000 0.000 0.000 0.000 0.000 172.5 366.0 68.38 23.91 5.590& 0.000 0.000 24
25 0.000 0.000 0.000 0.000 1.426& 206.0 218.8 63.58 23.04 5.151& 0.000 0.000 25
26 0.000 0.000 0.000 0.000 20.62 129.0 147.6 57.77 21.72 4.185& 0.000 0.000 26
27 0.000 0.000 0.000 0.000 16.19 110.6 115.6 53.90 21.20 3.550& 0.000 0.000 27
28 0.000 0.000 0.000 0.000 11.51 146.2 103.1 51.97 21.65 3.033& 0.000 0.000 28
29 0.000 0.000 0.000 21.87 98.93 93.55 48.59 22.49 2.520& 0.000 0.000 29
30 0.000 0.000 0.000 127.2 83.65 81.83 47.34 28.22 2.295& 0.000 0.000 30
31 0.000 0.000 104.1 75.87 78.57 1.930& 0.000 31
Mean 0.000 0.000 0.000 0.000 9.769& 117.8 294.8 230.9 " 64.26 15.91 & 0.256& 0.000
Median 0.000 0.000 0.000 0.000 0.000& 58.68 230.0 97.35 " 46.23 13.98 & 0.000& 0.000
Maximum 0.000 0.000 0.000 0.000 127.2 & 764.2 874.4 1242 " 271.1 42.70 & 1.578& 0.000
Minimum 0.000 0.000 0.000 0.000 0.000& 22.99 75.87 47.34 " 21.20 1.930& 0.000& 0.000
Total 0.000 0.000 0.000 0.000 302.8 &3535 9139 7158 "1928 493.1 & 7.674& 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 61.82 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 22563 &
Maximum Minimum
Daily 1242 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 22.21 66.77 382.0 111.7 36.91 22.54 7.103 1
2 0.000 0.000 0.000 0.000 0.000 21.96 62.72 292.9 101.0 33.21 24.31 6.287 2
3 0.000 0.000 0.000 0.000 0.000 26.82 58.46 234.5 145.8 31.11 22.37 5.027& 3
4 0.000 0.000 0.000 0.000 0.000 25.71 54.29 191.7 267.7 30.89 19.50 3.730& 4
5 0.000 0.000 0.000 0.000 0.000 24.54 51.67 160.2 177.1 35.45 16.28 2.826& 5
6 0.000 0.000 0.000 0.000 0.000 84.57 246.7 138.8 275.1 36.11 13.68 1.935& 6
7 0.000 0.000 0.000 0.000 0.000 373.8 203.8 122.6 405.8 34.66 11.92 1.130& 7
8 0.000 0.000 0.000 0.000 0.000 1005 " 423.3 111.7 258.0 31.35 17.21 0.707& 8
9 0.000 0.000 0.000 0.000 0.000 1363 " 685.5 250.5 185.6 28.93 34.46 0.376& 9
10 0.000 0.000 0.000 0.000 0.000 791.2 " 416.8 351.7 172.2 28.88 32.69 0.178& 10
11 0.000 0.000 0.000 0.000 10.46 & 271.1 908.8 " 356.5 138.6 31.30 24.75 0.064& 11
12 0.000 0.000 0.000 0.000 18.01 173.9 1580 " 429.4 141.8 32.41 19.24 0.023& 12
13 0.000 0.000 0.000 0.000 24.56 126.6 1346 "1491 " 326.7 26.36 14.79 0.021& 13
14 0.000 0.000 0.000 0.000 24.30 98.57 648.8 858.7 " 198.5 22.46 12.23 0.024& 14
15 0.000 0.000 0.000 0.000 18.92 81.07 614.4 329.6 137.4 19.64 10.62 0.022& 15
16 0.000 0.000 0.000 0.000 11.23 69.22 1135 " 246.6 111.4 18.68 10.02 0.007& 16
17 0.000 0.000 0.000 0.000 9.387 61.89 588.1 221.3 96.23 25.31 9.616 0.001& 17
18 0.000 0.000 0.000 0.000 48.93 56.80 325.2 233.1 88.03 396.5 8.212 0.000& 18
19 0.000 0.000 0.000 0.000 33.49 48.12 359.8 211.5 81.23 323.2 7.400 0.000 19
20 0.000 0.000 0.000 0.000 20.00 49.60 1553 " 303.8 79.18 115.6 6.496 0.000 20
21 0.000 0.000 0.000 0.000 16.25 62.07 2450 & 236.6 73.32 70.76 5.313& 0.000 21
22 0.000 0.000 0.000 0.000 47.41 57.57 1453 " 243.5 65.42 53.12 4.489& 0.000 22
23 0.000 0.000 0.000 0.000 156.9 86.94 603.9 262.9 58.74 42.22 3.880& 0.000 23
24 0.000 0.000 0.000 0.000 148.2 125.7 416.9 360.9 52.70 34.75 3.537& 0.000 24
25 0.000 0.000 0.000 0.000 78.07 174.6 1382 " 357.4 47.63 28.78 3.325& 0.000 25
26 0.000 0.000 0.000 0.000 44.08 227.4 1107 " 270.3 44.17 26.50 2.922& 0.000 26
27 0.000 0.000 0.000 0.000 29.90 145.0 581.9 253.3 43.87 24.38 3.122& 0.000 27
28 0.000 0.000 0.000 0.000 26.55 108.4 389.2 193.8 45.55 22.14 5.469& 0.000 28
29 0.000 0.000 0.000 32.25 84.08 704.2 " 156.9 46.04 20.62 5.650 0.000 29
30 0.000 0.000 0.000 33.65 73.06 1301 " 141.4 41.90 20.09 5.933 0.000 30
31 0.000 0.000 27.33 658.9 126.7 21.07 0.000 31
Mean 0.000 0.000 0.000 0.000 27.74 & 197.3 " 721.8 & 307.1 " 133.9 54.95 12.73 & 0.950&
Median 0.000 0.000 0.000 0.000 18.92 & 84.32 " 603.9 & 246.6 " 106.2 31.11 10.32 & 0.007&
Maximum 0.000 0.000 0.000 0.000 156.9 &1363 "2450 &1491 " 405.8 396.5 34.46 & 7.103&
Minimum 0.000 0.000 0.000 0.000 0.000& 21.96 " 51.67 & 111.7 " 41.90 18.68 2.922& 0.000&
Total 0.00 0.00 0.00 0.00 859.9 & 5920 "22376 & 9521 " 4018 1703 382.0 & 29.46&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 122.8 & " ... Relative Uncertainty +/-10%
Ann. Median 13.68 & & ... Relative Uncertainty +/-30%
Annual Total 44810 &
Maximum Minimum
Daily 2450 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 0.000 0.000 0.000 277.7 758.9 280.8 154.3 26.51 5.988& 1
2 0.000 0.000 0.000 0.000 0.000 0.000 146.3 683.2 200.9 132.8 23.50 8.204 2
3 0.000 0.000 0.000 0.000 0.000 0.000 749.7 453.7 173.2 113.9 20.32 11.41 3
4 0.000 0.000 0.000 0.000 0.000 0.000 518.5 470.3 159.2 97.38 17.48 10.55 4
5 0.000 0.000 0.000 0.000 0.000 0.000 353.5 1237 " 132.2 85.04 16.64 7.717 5
6 0.000 0.000 0.000 0.000 0.000 0.000 209.0 1364 " 136.3 75.94 28.12 5.993 6
7 0.000 0.000 0.000 0.000 0.000 0.000 140.6 631.5 137.1 67.66 66.13 5.588& 7
8 0.000 0.000 0.000 0.000 0.000 0.000 660.8 437.3 145.7 59.24 49.71 4.725& 8
9 0.000 0.000 0.000 0.000 0.000 0.000 464.0 312.8 145.7 55.19 32.75 3.251& 9
10 0.000 0.000 0.000 0.000 0.000 0.000 194.3 250.4 413.4 67.38 23.29 2.002& 10
11 0.000 0.000 0.000 0.000 0.000 0.000 136.8 392.1 1350 " 86.16 18.36 1.503& 11
12 0.000 0.000 0.000 0.000 0.000 0.000 107.7 339.9 848.3 " 69.10 14.81 1.560& 12
13 0.000 0.000 0.000 0.000 0.000 0.000 103.8 1119 " 363.0 55.49 13.58 1.623& 13
14 0.000 0.000 0.000 0.000 0.000 0.102& 101.0 947.9 " 284.7 48.81 14.46 3.572& 14
15 0.000 0.000 0.000 0.000 0.000 3.021& 108.6 401.1 460.8 46.94 26.96 2.558& 15
16 0.000 0.000 0.000 0.000 0.000 10.80 & 609.7 363.8 881.4 41.76 89.52 2.374& 16
17 0.000 0.000 0.000 0.000 0.000 15.46 988.5 " 299.4 472.3 37.11 70.27 1.901& 17
18 0.000 0.000 0.000 0.000 0.000 59.77 817.5 " 222.3 279.7 35.02 40.86 1.117& 18
19 0.000 0.000 0.000 0.000 0.000 152.0 530.2 177.2 244.3 33.11 28.75 0.468& 19
20 0.000 0.000 0.000 0.000 0.000 294.5 336.4 176.5 198.7 31.25 23.11 0.185& 20
21 0.000 0.000 0.000 0.000 0.000 461.5 352.5 446.8 160.5 49.88 18.97 0.066& 21
22 0.000 0.000 0.000 0.000 0.000 364.6 973.4 334.5 357.1 107.5 15.80 0.016& 22
23 0.000 0.000 0.000 0.000 0.000 193.3 962.0 263.6 345.7 130.6 13.51 0.003& 23
24 0.000 0.000 0.000 0.000 0.000 158.3 949.8 " 456.2 212.6 224.4 11.55 0.000& 24
25 0.000 0.000 0.000 0.000 0.000 98.12 1530 " 519.3 165.7 118.7 9.457 0.000 25
26 0.000 0.000 0.000 0.000 0.000 72.18 746.2 " 302.8 155.4 75.51 8.237 0.000 26
27 0.000 0.000 0.000 0.000 0.000 217.2 531.3 250.9 538.7 56.80 8.618 0.000 27
28 0.000 0.000 0.000 0.000 0.000 418.7 830.7 261.3 597.7 44.97 8.107 0.000 28
29 0.000 0.000 0.000 0.000 0.000 182.4 435.1 245.5 268.2 36.31 6.862 0.000 29
30 0.000 0.000 0.000 0.000 505.0 722.4 " 197.0 192.5 30.65 5.599& 0.000 30
31 0.000 0.000 0.000 1112 " 224.9 28.65 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 106.9 & 538.7 " 469.1 " 343.4 " 74.12 25.06 & 2.657&
Median 0.000 0.000 0.000 0.000 0.000 6.912& 518.5 " 363.8 " 256.3 " 59.24 18.67 & 1.560&
Maximum 0.000 0.000 0.000 0.000 0.000 505.0 &1530 "1364 "1350 " 224.4 89.52 & 11.41 &
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 101.0 " 176.5 " 132.2 " 28.65 5.599& 0.000&
Total 0.00 0.00 0.00 0.00 0.00 3207 &16700 "14541 "10301 " 2298 751.9 & 82.38&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 130.8 & " ... Relative Uncertainty +/-10%
Ann. Median 1.762& & ... Relative Uncertainty +/-30%
Annual Total 47882 &
Maximum Minimum
Daily 1530 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 54.26 18.94 51.05 99.78 34.40 6.617 0.849& 1
2 0.000 0.000 0.000 0.000 0.000 77.43 16.83 45.46 297.8 35.73 6.862 0.368& 2
3 0.000 0.000 0.000 0.000 0.000 82.84 23.39 42.64 188.5 31.38 6.313& 0.156& 3
4 0.000 0.000 0.000 0.000 0.000 82.68 36.58 218.9 144.1 27.77 5.309& 0.055& 4
5 0.000 0.000 0.000 0.000 0.000 74.35 30.89 442.7 148.8 24.44 4.876& 0.013& 5
6 0.000 0.000 0.000 0.000 0.000 65.83 38.87 369.6 763.7 21.00 4.645& 0.001& 6
7 0.000 0.000 0.000 0.000 0.000 54.60 150.5 219.0 353.4 19.43 4.729& 0.000& 7
8 0.000 0.000 0.000 0.000 0.000 46.78 109.9 190.1 277.0 20.57 4.719& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 110.2 93.42 454.3 814.2 " 47.57 4.692& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 77.58 91.02 1208 " 807.0 79.85 4.471& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 62.36 59.73 654.4 348.0 63.03 3.916& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 73.98 46.25 278.1 240.7 43.32 3.213& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 63.32 71.34 190.7 180.8 33.48 2.798& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 50.18 261.3 142.8 144.2 27.63 3.387& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 38.05 139.0 383.4 118.9 24.49 3.199& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 30.88 82.51 389.9 100.1 21.91 2.760& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 26.82 61.95 203.9 85.03 19.39 2.166& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 23.78 50.05 134.9 75.00 17.22 1.617& 0.000 18
19 0.000 0.000 0.000 0.000 0.000 21.96 42.23 108.2 68.88 15.59 1.122& 0.000 19
20 0.000 0.000 0.000 0.000 2.949& 22.09 37.03 92.25 67.12 13.23 0.727& 0.000 20
21 0.000 0.000 0.000 0.000 6.792 23.73 33.26 81.52 61.57 11.51 0.654& 0.000 21
22 0.000 0.000 0.000 0.000 5.592& 25.98 30.29 73.83 52.41 10.42 1.007& 0.000 22
23 0.000 0.000 0.000 0.000 5.936& 24.89 27.89 67.57 47.25 10.42 1.909& 0.000 23
24 0.000 0.000 0.000 0.000 13.60 23.28 37.79 61.19 43.71 10.46 2.577& 0.000 24
25 0.000 0.000 0.000 0.000 16.01 22.34 102.8 54.68 39.89 10.35 2.895& 0.000 25
26 0.000 0.000 0.000 0.000 14.80 21.24 106.8 49.15 37.83 11.10 3.126& 0.000 26
27 0.000 0.000 0.000 0.000 16.28 20.75 117.4 48.50 38.79 10.63 2.512& 0.000 27
28 0.000 0.000 0.000 0.000 21.71 21.05 147.9 112.1 37.38 9.335 2.381& 0.000 28
29 0.000 0.000 0.000 17.48 22.37 98.68 194.3 33.39 8.188 2.042& 0.000 29
30 0.000 0.000 0.000 14.47 22.01 73.11 109.7 30.14 7.302 1.480& 0.000 30
31 0.000 0.000 23.14 59.56 80.85 7.107 0.000 31
Mean 0.000 0.000 0.000 0.000 5.121& 45.59 74.10 217.9 " 191.5 " 23.49 3.291& 0.046&
Median 0.000 0.000 0.000 0.000 0.000& 34.47 59.73 134.9 " 99.96 " 19.43 3.011& 0.000&
Maximum 0.000 0.000 0.000 0.000 23.14 & 110.2 261.3 1208 " 814.2 " 79.85 6.862& 0.849&
Minimum 0.000 0.000 0.000 0.000 0.000& 20.75 16.83 42.64 " 30.14 " 7.107 0.654& 0.000&
Total 0.000 0.000 0.000 0.000 158.8 &1368 2297 6754 "5745 " 728.3 98.72 & 1.441&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 46.99 & " ... Relative Uncertainty +/-10%
Ann. Median 2.760& & ... Relative Uncertainty +/-30%
Annual Total 17151 &
Maximum Minimum
Daily 1208 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 8.666 80.99 172.8 563.7 ! 156.7 10.78 0.614& 1
2 0.000 0.000 0.000 0.000 0.000 9.679 127.9 155.9 330.1 ! 143.7 10.87 0.364& 2
3 0.000 0.000 0.000 0.000 0.000 13.70 89.07 184.0 163.5 ! 107.8 11.71 0.233& 3
4 0.000 0.000 0.000 0.000 0.000 12.99 159.3 144.4 134.9 ! 81.24 12.17 0.207& 4
5 0.000 0.000 0.000 0.000 0.000 39.16 224.9 157.6 90.51 ! 68.99 11.87 0.100& 5
6 0.000 0.000 0.000 0.000 0.000 25.54 335.3 291.4 83.84 ! 58.87 10.76 0.058& 6
7 0.000 0.000 0.000 0.000 0.000 16.98 475.2 445.1 81.63 ! 49.46 9.909 0.031& 7
8 0.000 0.000 0.000 0.000 0.000 88.29 230.0 388.4 80.17 ! 43.05 9.593 0.010& 8
9 0.000 0.000 0.000 0.000 0.000 96.37 147.2 211.2 78.87 ! 36.47 8.204 0.003& 9
10 0.000 0.000 0.000 0.000 0.000 192.8 111.4 147.6 77.52 ! 34.57 6.832 0.001& 10
11 0.000 0.000 0.000 0.000 0.000 285.3 95.77 156.5 76.17 ! 30.85 5.453& 0.000& 11
12 0.000 0.000 0.000 0.000 0.000 193.9 119.2 147.1 75.13 ! 28.34 4.571& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 95.85 99.81 119.6 75.79 ! 30.29 4.374& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 92.71 82.89 100.5 74.37 ! 34.92 4.936& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 74.46 71.15 88.35 71.73 ! 33.63 5.867 0.000 15
16 0.000 0.000 0.000 0.000 0.576& 52.49 60.65 81.85 67.85 29.01 5.676& 0.000 16
17 0.000 0.000 0.000 0.000 1.294& 47.84 54.17 82.15 64.50 43.87 4.972& 0.000 17
18 0.000 0.000 0.000 0.000 1.527& 108.7 65.59 280.3 63.60 60.75 3.994& 0.000 18
19 0.000 0.000 0.000 0.000 2.774& 87.51 154.6 303.6 57.28 45.34 3.364& 0.000 19
20 0.000 0.000 0.000 0.000 8.541 58.63 161.6 160.9 52.03 33.53 3.279& 0.000 20
21 0.000 0.000 0.000 0.000 6.501& 42.63 105.8 135.9 88.59 27.06 2.707& 0.000 21
22 0.000 0.000 0.000 0.000 8.044 33.75 130.1 120.6 217.6 24.35 2.077& 0.000 22
23 0.000 0.000 0.000 0.000 6.185 28.58 119.9 92.81 244.3 21.18 1.772& 0.000 23
24 0.000 0.000 0.000 0.000 5.056& 25.36 91.60 104.5 139.6 18.78 1.484& 0.000 24
25 0.000 0.000 0.000 0.000 4.725& 23.89 83.18 111.5 159.6 18.24 1.384& 0.000 25
26 0.000 0.000 0.000 0.000 12.53 & 37.92 354.3 84.80 158.9 16.51 1.179& 0.000 26
27 0.000 0.000 0.000 0.000 32.35 66.07 464.0 151.5 142.2 16.40 0.928& 0.000 27
28 0.000 0.000 0.000 0.000 18.50 99.51 196.7 852.4 " 126.5 15.63 0.798& 0.000 28
29 0.000 0.000 0.000 15.58 70.11 132.3 1304 ! 92.89 16.74 0.724& 0.000 29
30 0.000 0.000 0.000 11.37 49.68 103.1 1601 ! 92.12 14.88 0.692& 0.000 30
31 0.000 0.000 9.686 102.3 1060 ! 12.36 0.000 31
Mean 0.000 0.000 0.000 0.000 4.685& 69.31 155.8 304.4 ! 127.5 ! 43.66 5.431& 0.052&
Median 0.000 0.000 0.000 0.000 0.576& 51.08 119.2 155.9 ! 86.21 ! 33.53 4.753& 0.000&
Maximum 0.000 0.000 0.000 0.000 32.35 & 285.3 475.2 1601 ! 563.7 ! 156.7 12.17 & 0.614&
Minimum 0.000 0.000 0.000 0.000 0.000& 8.666 54.17 81.85 ! 52.03 ! 12.36 0.692& 0.000&
Total 0.000 0.000 0.000 0.000 145.2 &2079 4830 9438 !3825 !1354 162.9 & 1.622&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 59.82 ! ! ... Not reviewed / Quality not known
Ann. Median 3.994! " ... Relative Uncertainty +/-10%
Annual Total 21836 ! & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 1601 ! 0.000!
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.166& 0.000 0.000 0.000 32.73 93.93 108.3 142.3 120.9 20.93 0.141& 1
2 0.000 0.042& 0.000 0.000 0.000 26.10 77.75 90.24 130.0 95.39 17.67 0.078& 2
3 0.000 0.005& 0.000 0.000 0.000 30.77 66.47 78.09 259.3 77.17 15.85 0.036& 3
4 0.000 0.000& 0.000 0.000 0.000 85.95 69.46 68.48 424.5 65.92 14.52 0.018& 4
5 0.000 0.000 0.000 0.000 0.000 70.02 824.8 60.62 248.6 58.26 13.17 0.009& 5
6 0.000 0.000 0.000 0.000 0.000 39.68 825.7 117.9 166.1 54.60 12.64 0.005& 6
7 0.000 0.000 0.000 0.000 0.000 29.61 443.1 176.8 134.1 102.6 10.63 0.001& 7
8 0.000 0.000 0.000 0.000 0.000 25.78 270.1 106.7 108.8 1189 " 9.799 0.000& 8
9 0.000 0.000 0.000 0.000 0.000 26.82 194.0 86.17 89.58 2221 " 8.626 0.000& 9
10 0.000 0.000 0.000 0.000 0.000 27.22 150.3 158.0 78.79 962.2 " 7.518 0.000 10
11 0.000 0.000 0.000 0.000 0.000 35.05 123.2 638.7 730.1 " 372.6 6.963 0.000 11
12 0.000 0.000 0.000 0.000 0.000 78.78 103.3 506.3 1239 " 283.0 6.332 0.000 12
13 0.000 0.000 0.000 0.000 0.000 68.86 104.4 256.0 494.5 236.9 5.643& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 48.60 494.6 166.3 427.3 661.5 5.511& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 53.01 456.9 153.3 636.5 679.9 5.443& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 125.3 403.0 179.8 349.8 345.2 5.928& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 121.9 387.6 222.6 209.3 276.6 7.228 0.000 17
18 0.000 0.000 0.000 0.000 0.000 374.4 285.7 437.9 153.9 187.2 8.906 0.000 18
19 0.000 0.000 0.000 0.000 0.000 446.0 230.9 398.9 118.9 136.5 6.509 0.000 19
20 0.000 0.000 0.000 0.000 0.000 248.4 194.6 256.2 97.75 106.3 5.331& 0.000 20
21 0.000 0.000 0.000 0.000 0.000 141.8 148.0 188.5 128.0 83.95 4.365& 0.000 21
22 0.000 0.000 0.000 0.000 10.17 & 98.68 113.7 147.0 358.1 67.06 3.364& 0.000 22
23 1.876& 0.000 0.000 0.000 11.59 350.4 92.08 116.4 277.9 56.11 2.596& 0.000 23
24 59.72 0.000 0.000 0.000 9.495 398.2 79.83 222.8 166.6 48.28 1.864& 0.000 24
25 25.18 0.000 0.000 0.000 7.255 170.4 77.03 622.4 131.2 42.10 1.294& 0.000 25
26 12.10 0.000 0.000 0.000 6.027 217.6 284.7 738.4 113.7 36.46 1.008& 0.000 26
27 10.26 0.000 0.000 0.000 51.21 218.8 190.9 337.0 138.9 32.52 0.713& 0.000 27
28 5.608& 0.000 0.000 0.000 203.1 193.7 232.7 220.2 401.1 30.61 0.571& 0.000 28
29 2.551& 0.000 0.000 154.4 202.7 407.8 212.9 270.9 27.37 0.414& 0.000 29
30 0.994& 0.000 0.000 84.82 129.7 207.9 219.4 154.9 24.84 0.256& 0.000 30
31 0.429& 0.000 47.09 137.2 167.6 23.73 0.000 31
Mean 3.830& 0.008& 0.000 0.000 18.88 & 137.2 250.7 240.6 279.3 " 280.8 " 7.053& 0.009&
Median 0.000& 0.000& 0.000 0.000 0.000& 92.31 194.0 179.8 166.3 " 95.39 " 6.130& 0.000&
Maximum 59.72 & 0.166& 0.000 0.000 203.1 & 446.0 825.7 738.4 1239 "2221 " 20.93 & 0.141&
Minimum 0.000& 0.000& 0.000 0.000 0.000& 25.78 66.47 60.62 78.79 " 23.73 " 0.256& 0.000&
Total 118.7 & 0.213& 0.000 0.000 585.2 &4117 7772 7460 8380 "8706 " 211.6 & 0.288&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 102.3 & " ... Relative Uncertainty +/-10%
Ann. Median 5.928& & ... Relative Uncertainty +/-30%
Annual Total 37351 &
Maximum Minimum
Daily 2221 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 10.14 0.000 0.000 0.000 6.436 96.40 104.2 1046 " 40.26 7.227 2.114& 1
2 0.000 6.062& 0.000 0.000 0.000 7.215 477.0 143.8 629.8 37.49 7.802 1.524& 2
3 0.000 3.455& 0.000 0.000 0.000 6.419 445.3 271.4 406.4 33.39 7.663 1.076& 3
4 0.000 2.272& 0.000 0.000 0.000 5.737 528.8 166.6 305.1 30.65 7.101 0.720& 4
5 0.000 1.550& 0.000 0.000 0.000 5.483& 562.8 285.8 229.2 28.79 6.438 0.521& 5
6 0.000 0.975& 0.000 0.000 0.000 5.182& 265.0 1108 " 387.7 32.33 6.180 0.296& 6
7 0.000 0.565& 0.000 0.000 0.000 4.867& 223.1 960.6 415.5 32.66 6.048 0.171& 7
8 0.000 0.281& 0.000 0.000 0.000 4.690& 166.5 547.9 276.2 29.60 6.210 0.082& 8
9 0.000 0.104& 0.000 0.000 0.000 4.798& 110.2 326.8 199.5 26.72 8.981 0.041& 9
10 0.000 0.023& 0.000 0.000 0.000 5.079& 91.17 241.9 152.0 24.62 11.68 0.009& 10
11 0.000 0.002& 0.000 0.000 0.000 5.558& 246.6 180.1 126.8 23.39 10.41 0.001& 11
12 0.000 0.000 0.000 0.000 6.314& 6.345 227.2 144.7 107.1 22.21 8.568 0.000& 12
13 0.000 0.000 0.000 0.000 13.48 6.592 302.0 127.1 104.7 21.01 6.475 0.000 13
14 0.000 0.000 0.000 0.000 11.61 24.53 441.0 115.8 105.8 20.99 4.886& 0.000 14
15 0.025& 0.000 0.000 0.000 9.237 114.9 587.3 110.5 99.12 19.35 3.500& 0.000 15
16 2.016& 0.000 0.000 0.000 7.733 75.21 377.6 436.1 95.45 17.03 2.846& 0.000 16
17 6.391& 0.000 0.000 0.000 6.802 39.25 845.5 " 645.9 82.55 14.99 2.468& 0.000 17
18 2.762& 0.000 0.000 0.000 6.062 27.50 1105 " 301.8 73.19 13.63 2.234& 0.000 18
19 1.469& 0.000 0.000 0.000 5.597& 60.07 867.0 209.1 66.96 12.96 1.879& 0.000 19
20 0.615& 0.000 0.000 0.000 5.186& 104.2 488.2 165.0 63.14 12.75 1.512& 0.000 20
21 0.236& 0.000 0.000 0.000 4.815& 97.13 424.8 131.0 58.58 12.19 1.211& 0.000 21
22 1.568& 0.000 0.000 0.000 4.649& 65.42 355.0 106.7 53.63 13.15 0.918& 0.000 22
23 46.50 0.000 0.000 0.000 4.768& 64.11 283.6 92.54 49.41 13.55 0.632& 0.000 23
24 21.24 0.000 0.000 0.000 4.886& 67.54 226.0 98.06 47.54 12.36 0.431& 0.000 24
25 10.98 0.000 0.000 0.000 5.008& 58.47 180.3 111.5 44.05 11.30 0.353& 0.000 25
26 5.759& 0.000 0.000 0.000 5.054& 97.10 143.7 236.7 40.60 10.70 0.476& 0.000 26
27 3.130& 0.000 0.000 0.000 5.075& 72.98 119.4 278.7 38.65 9.814 0.926& 0.000 27
28 1.766& 0.000 0.000 0.000 5.786& 60.44 112.3 172.4 45.31 9.073 3.534& 0.000 28
29 1.034& 0.000 0.000 0.000 6.414 47.89 139.7 405.4 49.58 8.483 3.128& 0.000 29
30 0.781& 0.000 0.000 6.435 38.52 116.5 414.2 42.38 7.775 2.564& 0.000 30
31 12.71 & 0.000 6.313 101.5 865.6 " 7.339 0.000 31
Mean 3.838& 0.877& 0.000 0.000 4.233& 39.66 & 343.7 " 306.6 " 181.4 " 19.70 4.476& 0.211&
Median 0.236& 0.000& 0.000 0.000 5.008& 33.01 & 265.0 " 209.1 " 97.29 " 17.03 3.517& 0.000&
Maximum 46.50 & 10.14 & 0.000 0.000 13.48 & 114.9 &1105 "1108 "1046 " 40.26 11.68 & 2.114&
Minimum 0.000& 0.000& 0.000 0.000 0.000& 4.690& 91.17 " 92.54 " 38.65 " 7.339 0.353& 0.000&
Total 119.0 & 25.43& 0.00 0.00 131.2 & 1190 &10656 " 9506 " 5441 " 610.6 134.3 & 6.55&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 76.01 & " ... Relative Uncertainty +/-10%
Ann. Median 5.131& & ... Relative Uncertainty +/-30%
Annual Total 27820 &
Maximum Minimum
Daily 1108 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 27.86 9.331 280.3 61.05 572.9 15.57 0.369& 1
2 0.000 0.000 0.000 0.000 0.000 20.07 11.12 133.6 53.90 262.3 14.17 0.281& 2
3 0.000 0.000 0.000 0.000 0.000 16.87 12.97 121.8 49.09 156.1 12.80 0.171& 3
4 0.000 0.000 0.000 0.000 0.000 15.93 18.11 225.4 43.79 108.5 11.30 0.086& 4
5 0.000 0.000 0.000 0.000 0.000 12.54 17.67 143.0 40.57 81.57 10.40 0.061& 5
6 0.000 0.000 0.000 0.000 0.000 10.85 14.45 109.2 56.56 63.82 10.09 0.037& 6
7 0.000 0.000 0.000 0.000 0.000 9.800 32.52 103.5 108.1 52.04 9.912 0.020& 7
8 0.000 0.000 0.000 0.000 0.000 9.127 58.35 86.37 80.31 42.98 8.841 0.012& 8
9 0.000 0.000 0.000 0.000 0.000 10.41 90.84 215.0 88.57 37.66 7.433 0.002& 9
10 0.000 0.000 0.000 0.000 0.000 19.74 72.82 338.6 243.9 33.90 6.178& 0.000& 10
11 0.000 0.000 0.000 0.000 0.000 35.12 41.07 184.4 170.7 30.32 4.909& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 31.38 38.90 141.4 100.5 28.29 3.774& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 22.56 35.19 113.8 75.36 26.41 3.052& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 16.80 29.98 461.0 61.56 24.47 2.452& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 13.86 24.00 867.4 52.23 22.86 2.178& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 12.21 20.49 494.5 46.86 21.90 2.067& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 11.67 18.12 215.0 41.31 21.53 1.981& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 11.86 16.72 140.9 36.43 19.27 1.988& 0.000 18
19 0.000 0.000 0.000 0.000 0.044& 11.51 15.52 106.8 32.43 18.30 4.783& 0.000 19
20 0.000 0.000 0.000 0.000 1.444& 11.40 15.76 86.25 29.05 21.25 9.213 0.000 20
21 0.000 0.000 0.000 0.000 2.673& 10.96 18.76 73.71 27.00 51.95 7.667 0.000 21
22 0.000 0.000 0.000 0.000 3.021& 10.45 18.62 65.19 32.98 109.5 6.171 0.000 22
23 0.000 0.000 0.000 0.000 4.646& 9.873 17.31 59.60 92.86 98.04 4.996& 0.000 23
24 0.000 0.000 0.000 0.000 6.128 9.198 15.35 90.18 112.0 64.77 4.324& 0.000 24
25 0.000 0.000 0.000 0.000 7.796 8.555 14.46 110.5 69.66 45.45 3.658& 0.000 25
26 0.000 0.000 0.000 0.000 8.939 8.955 13.21 76.12 49.06 35.71 3.000& 0.000 26
27 0.000 0.000 0.000 0.000 9.875 9.003 12.16 59.75 38.91 29.37 2.221& 0.000 27
28 0.000 0.000 0.000 0.000 8.133" 8.728 12.74 51.70 36.54 25.22 1.658& 0.000# 28
29 0.000 0.000 0.000 8.509" 8.428 17.52 47.66 279.6 21.77 1.044& 0.000# 29
30 0.000 0.000 0.000 19.92 8.554 513.4 63.09 832.3 18.95 0.612& 0.000# 30
31 0.000 0.000 25.20 779.4 72.82 17.12 0.000# 31
Mean 0.000 0.000 0.000 0.000 3.430& 14.14 65.38 172.2 101.4 69.81 5.948& 0.034&
Median 0.000 0.000 0.000 0.000 0.000& 11.46 18.11 110.5 55.23 33.90 4.846& 0.000&
Maximum 0.000 0.000 0.000 0.000 25.20 & 35.12 779.4 867.4 832.3 572.9 15.57 & 0.369&
Minimum 0.000 0.000 0.000 0.000 0.000& 8.428 9.331 47.66 27.00 17.12 0.612& 0.000&
Total 0.000 0.000 0.000 0.000 106.3 & 424.3 2027 5338 3043 2164 178.4 & 1.039&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 36.39 & " ... Relative Uncertainty +/-10%
Ann. Median 3.021& # ... Relative Uncertainty +/-15%
Annual Total 13283 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 867.4 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000# 0.000 0.000 0.000 0.000 1.751& 105.5 128.0 250.1 21.11 19.47 0.000 1
2 0.000# 0.000 0.000 0.000 0.000 3.829& 113.9 100.2 456.2 19.66 22.15 0.000 2
3 0.000# 0.000 0.000 0.000 0.000 25.16 87.30 86.61 575.1 17.39 18.17 0.000 3
4 0.000# 0.000 0.000 0.000 0.000 87.31 71.64 113.3 377.9 16.04 14.06 0.000 4
5 0.000# 0.000 0.000 0.000 0.000 137.7 115.4 305.3 193.3 16.71 11.10 0.000 5
6 0.000# 0.000 0.000 0.000 0.000 146.6 88.54 230.2 144.1 35.11 8.993 0.000 6
7 0.000# 0.000 0.000 0.000 0.000 97.46 104.6 155.8 116.1 55.25 7.803 0.000 7
8 0.000# 0.000 0.000 0.000 0.000 53.89 123.7 124.0 93.80 44.74 6.927 0.000 8
9 0.000# 0.000 0.000 0.000 0.000 34.93 134.1 132.1 77.43 32.11 6.260 0.000 9
10 0.000# 0.000 0.000 0.000 0.000 26.86 123.0 323.2 66.10 24.35 5.540& 0.000 10
11 0.000# 0.000 0.000 0.000 0.000 21.80 306.1 289.1 57.48 20.83 4.642& 0.000 11
12 0.000# 0.000 0.000 0.000 0.000 19.48 493.1 157.0 50.86 18.75 3.975& 0.000 12
13 0.000# 0.000 0.000 0.000 0.390& 31.00 515.1 117.0 47.31 17.24 3.564& 0.000 13
14 0.000# 0.000 0.000 0.000 2.129& 49.30 268.5 93.06 47.77 16.17 3.159& 0.000 14
15 0.000# 0.000 0.000 0.000 2.753& 69.86 283.8 96.71 91.01 15.09 2.259& 0.000 15
16 0.000# 0.000 0.000 0.000 2.853& 47.92 242.9 149.4 166.9 14.08 1.470& 0.000 16
17 0.000# 0.000 0.000 0.000 3.175& 30.83 147.4 119.7 100.6 14.37 1.086& 0.000 17
18 0.000# 0.000 0.000 0.000 3.172& 31.79 115.9 93.09 71.02 22.63 0.868& 0.000 18
19 0.000# 0.000 0.000 0.000 2.631& 106.3 327.0 79.51 58.09 25.49 0.631& 0.000 19
20 0.000# 0.000 0.000 0.000 1.893& 80.75 231.8 68.35 49.96 20.41 0.496& 0.000 20
21 0.000# 0.000 0.000 0.000 1.713& 47.78 139.8 59.96 44.23 16.31 0.568& 0.000 21
22 0.000# 0.000 0.000 0.000 1.763& 70.60 107.2 53.81 39.70 13.54 1.123& 0.000 22
23 0.000# 0.000 0.000 0.000 1.868& 79.84 88.03 48.75 39.99 11.37 0.940& 0.000 23
24 0.000# 0.000 0.000 0.000 2.411& 55.93 96.19 44.35 38.71 10.06 0.653& 0.000 24
25 0.000# 0.000 0.000 0.000 2.329& 42.80 251.2 45.44 34.58 9.189 0.445& 0.000 25
26 0.000 0.000 0.000 0.000 2.517& 39.00 269.6 50.35 31.06 8.284 0.250& 0.000 26
27 0.000 0.000 0.000 0.000 2.466& 37.77 222.6 77.82 28.19 7.770 0.049& 0.000 27
28 0.000 0.000 0.000 0.000 2.258& 33.30 167.7 88.88 26.13 8.027 0.012& 0.000 28
29 0.000 0.000 0.000 1.997& 175.3 106.2 73.00 23.73 9.245 0.002& 0.000 29
30 0.000 0.000 0.000 1.887& 155.1 101.7 119.1 22.34 8.513 0.000& 0.000 30
31 0.000 0.000 1.792& 162.2 140.7 8.078 0.000 31
Mean 0.000# 0.000 0.000 0.000 1.355& 61.40 & 184.2 121.4 114.0 18.64 4.889& 0.000
Median 0.000# 0.000 0.000 0.000 1.792& 47.85 & 134.1 100.2 57.79 16.31 1.864& 0.000
Maximum 0.000# 0.000 0.000 0.000 3.175& 175.3 & 515.1 323.2 575.1 55.25 22.15 & 0.000
Minimum 0.000# 0.000 0.000 0.000 0.000& 1.751& 71.64 44.35 22.34 7.770 0.000& 0.000
Total 0.000# 0.000 0.000 0.000 42.00 &1842 &5712 3764 3420 577.9 146.7 & 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 42.48 & # ... Relative Uncertainty +/-15%
Ann. Median 1.792& & ... Relative Uncertainty +/-30%
Annual Total 15504 &
Maximum Minimum
Daily 575.1 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 6.482& 396.1 135.0 82.51 743.6 12.36 0.597& 1
2 0.000 0.000 0.000 0.000 0.000 14.99 211.4 115.3 74.69 236.8 10.78 0.397& 2
3 0.000 0.000 0.000 0.000 0.000 17.61 329.4 572.8 65.93 139.8 9.466 0.246& 3
4 0.000 0.000 0.000 0.000 0.000 31.74 497.5 778.2 69.84 105.8 8.245 0.135& 4
5 0.000 0.000 0.000 0.000 0.000 30.73 416.7 510.0 75.69 85.28 7.198 0.151& 5
6 0.000 0.000 0.000 0.000 0.000 25.67 440.5 293.4 68.71 70.64 6.460 0.142& 6
7 0.000 0.000 0.000 0.000 0.000 20.62 282.3 221.7 63.88 58.59 5.718& 0.115& 7
8 0.000 0.000 0.000 0.000 0.000 17.05 171.0 173.0 80.63 50.39 5.043& 0.072& 8
9 0.000 0.000 0.000 0.000 0.000 14.20 157.8 133.6 154.8 42.20 4.273& 0.031& 9
10 0.000 0.000 0.000 0.000 0.000 12.56 453.6 161.1 185.3 34.69 3.446& 0.026& 10
11 0.000 0.000 0.000 0.000 0.000 12.30 613.6 1063 " 260.6 29.57 2.566& 0.026& 11
12 0.000 0.000 0.000 0.000 0.000 11.88 360.3 961.9 " 225.6 27.46 1.838& 0.014& 12
13 0.000 0.000 0.000 0.000 0.000 11.93 188.3 413.3 179.5 31.29 1.443& 0.011& 13
14 0.000 0.000 0.000 0.000 0.000 10.55 282.7 241.2 130.9 42.51 1.212& 0.007& 14
15 0.000 0.000 0.000 0.000 0.000 9.904 579.1 179.8 98.41 44.23 0.903& 0.003& 15
16 0.000 0.000 0.000 0.000 0.000 9.252 334.6 223.0 78.76 36.33 0.797& 0.000& 16
17 0.000 0.000 0.000 0.000 0.000 8.676 189.1 270.3 67.41 30.50 2.470& 0.000& 17
18 0.000 0.000 0.000 0.000 0.005& 8.027 140.0 181.5 60.56 27.53 3.146& 0.000& 18
19 0.000 0.000 0.000 0.000 9.988& 7.725 115.3 180.6 55.84 25.04 8.156 0.001& 19
20 0.000 0.000 0.000 0.000 9.837 7.347 111.3 264.6 58.49 23.38 9.037 0.001& 20
21 0.000 0.000 0.000 0.000 11.64 6.908 141.7 247.9 75.64 22.13 8.039 0.000& 21
22 0.000 0.000 0.000 0.000 16.93 8.138 174.3 1276 " 165.0 21.61 5.307& 0.000 22
23 0.000 0.000 0.000 0.000 14.54 15.76 127.9 1477 " 296.7 19.75 3.155& 0.000 23
24 0.000 0.000 0.000 0.000 10.54 20.87 97.29 677.6 " 262.6 18.16 2.236& 0.000 24
25 0.000 0.000 0.000 0.000 8.395 30.93 86.74 329.5 165.3 17.93 1.804& 0.000 25
26 0.000 0.000 0.000 0.000 6.772 53.92 79.39 242.3 140.6 17.53 1.644& 0.000 26
27 0.000 0.000 0.000 0.000 5.209& 122.2 86.00 180.0 104.1 28.02 1.709& 0.000 27
28 0.000 0.000 0.000 0.000 4.091& 205.7 88.23 144.7 79.60 25.33 1.670& 0.000 28
29 0.000 0.000 0.000 3.509& 403.9 75.85 125.2 135.9 19.41 1.206& 0.000 29
30 0.000 0.000 0.000 3.851& 467.4 104.3 108.5 824.6 16.66 0.839& 0.000 30
31 0.000 0.000 4.080& 174.5 92.92 14.39 0.000 31
Mean 0.000 0.000 0.000 0.000 3.529& 54.17 & 242.2 386.3 " 146.3 67.96 4.406& 0.064&
Median 0.000 0.000 0.000 0.000 0.000& 14.60 & 174.5 241.2 " 90.46 29.57 3.151& 0.001&
Maximum 0.000 0.000 0.000 0.000 16.93 & 467.4 & 613.6 1477 " 824.6 743.6 12.36 & 0.597&
Minimum 0.000 0.000 0.000 0.000 0.000& 6.482& 75.85 92.92 " 55.84 14.39 0.797& 0.000&
Total 0.00 0.00 0.00 0.00 109.4 & 1625 & 7507 11975 " 4388 2107 132.2 & 1.97&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 76.29 & " ... Relative Uncertainty +/-10%
Ann. Median 2.566& & ... Relative Uncertainty +/-30%
Annual Total 27845 &
Maximum Minimum
Daily 1477 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 45.21 65.21 95.97 23.19 9.962 0.761& 1
2 0.000 0.000 0.000 0.000 0.000 0.000 51.56 125.7 78.93 23.67 9.432 0.611& 2
3 0.000 0.000 0.000 0.000 0.000 1.665& 99.42 93.01 64.98 22.62 9.360 0.485& 3
4 0.000 0.000 0.000 0.000 0.000 5.755& 95.85 65.67 52.78 20.90 10.12 0.321& 4
5 0.000 0.000 0.000 0.000 0.000 11.67 81.30 76.55 52.32 19.90 10.53 0.183& 5
6 0.000 0.000 0.000 0.000 0.000 31.00 55.56 182.0 420.5 27.29 9.522 0.089& 6
7 0.000 0.000 0.000 0.000 0.000 62.51 117.6 119.6 512.8 36.52 7.707 0.032& 7
8 0.000 0.000 0.000 0.000 0.000 63.68 350.5 74.50 278.8 29.77 6.029 0.008& 8
9 0.000 0.000 0.000 0.000 0.000 50.93 306.1 58.26 163.7 23.71 5.313& 0.000& 9
10 0.000 0.000 0.000 0.000 0.000 31.52 142.9 48.73 137.1 20.94 6.947 0.000 10
11 0.000 0.000 0.000 0.000 0.000 92.04 88.97 54.95 101.1 21.29 14.61 0.000 11
12 0.000 0.000 0.000 0.000 0.000 137.1 67.50 467.6 77.75 38.99 14.79 0.000 12
13 0.000 0.000 0.000 0.000 0.000 96.81 53.47 334.6 64.46 53.12 14.05 0.000 13
14 0.000 0.000 0.000 0.000 0.000 53.96 43.99 178.1 54.49 35.84 11.53 0.000 14
15 0.000 0.000 0.000 0.000 0.000 34.02 37.84 131.3 49.64 26.97 9.008 0.000 15
16 0.000 0.000 0.000 0.000 0.000 25.66 33.73 96.57 46.08 22.75 6.626 0.000 16
17 0.000 0.000 0.000 0.000 0.000 23.08 30.27 78.11 43.01 20.07 5.631& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 25.57 27.57 83.38 39.89 18.18 4.922& 0.000 18
19 0.000 0.000 0.000 0.000 0.000 23.36 25.85 74.67 37.78 16.31 5.121& 0.000 19
20 0.000 0.000 0.000 0.000 0.000 20.02 25.26 66.51 36.27 14.75 5.167& 0.000 20
21 0.000 0.000 0.000 0.000 0.000 18.10 29.01 90.37 34.32 21.71 3.947& 0.000 21
22 0.000 0.000 0.000 0.000 0.000 18.93 46.49 96.08 32.70 55.19 2.518& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 45.85 45.96 114.8 31.01 44.21 1.392& 0.000 23
24 0.000 0.000 0.000 0.000 0.000 42.47 35.60 265.0 27.98 28.20 0.937& 0.000 24
25 0.000 0.000 0.000 0.000 0.000 28.81 30.65 370.3 26.54 21.11 0.954& 0.000 25
26 0.000 0.000 0.000 0.000 0.000 23.72 28.57 358.9 29.30 16.87 1.016& 0.000 26
27 0.000 0.000 0.000 0.000 0.000 21.86 26.89 436.8 29.48 14.06 0.930& 0.000 27
28 0.000 0.000 0.000 0.000 0.000 36.40 25.23 535.3 27.04 12.40 1.123& 0.000 28
29 0.000 0.000 0.000 0.000 0.000 47.77 24.06 268.0 24.50 10.73 1.018& 0.000 29
30 0.000 0.000 0.000 0.000 42.81 26.11 159.5 23.01 9.949 1.016& 0.000 30
31 0.000 0.000 0.000 38.18 119.5 9.894 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 37.24 & 68.94 170.6 89.81 24.55 6.374& 0.080&
Median 0.000 0.000 0.000 0.000 0.000 29.91 & 43.99 114.8 47.86 21.71 5.830& 0.000&
Maximum 0.000 0.000 0.000 0.000 0.000 137.1 & 350.5 535.3 512.8 55.19 14.79 & 0.761&
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 24.06 48.73 23.01 9.894 0.930& 0.000&
Total 0.000 0.000 0.000 0.000 0.000 1117 &2137 5290 2694 761.1 191.2 & 2.490&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 33.31 & & ... Relative Uncertainty +/-30%
Ann. Median 0.548&
Annual Total 12193 &
Maximum Minimum
Daily 535.3 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 7.935" 195.4 62.61 87.17 121.1 23.44 " 1.932& 1
2 0.000 0.000 0.000 0.000 0.000 7.756" 139.2 108.6 75.38 135.1 21.42 " 1.704& 2
3 0.000 0.000 0.000 0.000 0.000 8.606" 114.7 277.9 69.27 107.2 19.26 " 1.435& 3
4 0.000 0.000 0.000 0.000 0.000 29.42 216.4 239.0 65.09 120.9 18.23 " 1.226& 4
5 0.000 0.000 0.000 0.000 0.000 44.79 244.7 141.5 64.35 146.7 23.81 " 1.279& 5
6 0.000 0.000 0.000 0.000 0.000 60.34 212.2 107.0 309.9 226.4 30.71 " 1.235& 6
7 0.000 0.000 0.000 0.000 0.000 217.1 145.2 91.79 393.3 280.9 25.70 " 1.518& 7
8 0.000 0.000 0.000 0.000 0.000 350.1 113.5 80.98 619.6 160.7 21.67 " 1.724& 8
9 0.000 0.000 0.000 0.000 0.000 408.1 96.63 72.50 406.9 112.4 19.97 " 1.834& 9
10 0.000 0.000 0.000 0.000 0.000 990.7 83.05 65.48 248.0 94.41 " 18.35 " 1.789& 10
11 0.000 0.000 0.000 0.000 0.000 1198 " 74.06 59.84 163.0 76.86 " 16.38 " 2.353& 11
12 0.000 0.000 0.000 0.000 0.000 974.9 68.30 61.33 138.3 64.39 " 15.22 " 2.758& 12
13 0.000 0.000 0.000 0.000 0.000 939.6 102.8 168.1 138.0 55.99 " 13.83 " 3.210& 13
14 0.000 0.000 0.000 0.000 0.000 469.0 160.7 322.2 179.0 48.79 " 11.97 " 2.660& 14
15 0.000 0.000 0.000 0.000 0.000 256.0 153.8 259.3 153.7 42.96 " 10.57 " 2.278& 15
16 0.000 0.000 0.000 0.000 0.000 228.3 175.3 210.5 108.9 38.27 " 9.287 2.075& 16
17 0.000 0.000 0.000 0.000 18.04 & 493.7 136.9 842.2 " 184.4 34.60 " 7.760 1.848& 17
18 0.000 0.000 0.000 0.000 24.66 423.6 109.4 1551 " 358.4 31.91 " 6.339 1.470& 18
19 0.000 0.000 0.000 0.000 189.5 319.5 89.84 1102 " 197.7 29.48 " 5.703& 1.268& 19
20 0.000 0.000 0.000 0.000 98.53 248.6 79.05 398.2 146.1 27.56 " 5.045& 0.906& 20
21 0.000 0.000 0.000 0.000 51.42 172.5 215.0 267.8 177.0 26.53 " 4.277& 0.517& 21
22 0.000 0.000 0.000 0.000 44.05 133.8 251.2 200.2 163.2 29.52 " 3.558& 0.309& 22
23 0.000 0.000 0.000 0.000 35.07 344.2 173.9 155.6 132.4 32.86 " 3.170& 0.156& 23
24 0.000 0.000 0.000 0.000 26.27 1080 " 138.4 124.3 106.5 29.13 " 2.753& 0.069& 24
25 0.000 0.000 0.000 0.000 19.92 " 650.2 119.1 108.9 86.60 29.26 " 2.094& 0.034& 25
26 0.000 0.000 0.000 0.000 16.07 " 312.3 106.6 99.70 74.85 32.20 " 1.388& 0.017& 26
27 0.000 0.000 0.000 0.000 13.43 " 208.8 92.85 91.60 66.05 30.13 " 1.167& 0.008& 27
28 0.000 0.000 0.000 0.000 11.51 " 160.0 82.83 90.04 61.83 29.00 " 1.268& 0.003& 28
29 0.000 0.000 0.000 10.31 " 131.7 80.29 132.5 67.55 26.09 " 1.707& 0.001& 29
30 0.000 0.000 0.000 9.306" 212.3 75.98 130.2 98.43 23.87 " 1.838& 0.000& 30
31 0.000 0.000 8.582" 68.93 107.2 22.88 " 0.000 31
Mean 0.000 0.000 0.000 0.000 18.60 & 369.4 " 132.8 249.3 " 171.4 73.17 " 11.60 & 1.213&
Median 0.000 0.000 0.000 0.000 0.000& 252.3 " 114.7 130.2 " 138.1 38.27 " 9.927& 1.279&
Maximum 0.000 0.000 0.000 0.000 189.5 &1198 " 251.2 1551 " 619.6 280.9 " 30.71 & 3.210&
Minimum 0.000 0.000 0.000 0.000 0.000& 7.756" 68.30 59.84 " 61.83 22.88 " 1.167& 0.000&
Total 0.00 0.00 0.00 0.00 576.7 &11082 " 4116 7729 " 5141 2268 " 347.9 & 37.62&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 85.75 & " ... Relative Uncertainty +/-10%
Ann. Median 7.935& & ... Relative Uncertainty +/-30%
Annual Total 31299 &
Maximum Minimum
Daily 1551 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 0.000 0.627& 8.940 27.11 262.9 21.51 6.216& 0.000 1
2 0.000 0.000 0.000 0.000 0.000 2.190& 9.860 34.65 218.9 20.77 4.930& 0.000 2
3 0.000 0.000 0.000 0.000 0.000 2.657& 9.924 30.02 135.4 21.30 3.916& 0.000 3
4 0.000 0.000 0.000 0.000 0.000 1.786& 12.14 24.04 89.79 23.74 3.268& 0.000 4
5 0.000 0.000 0.000 0.000 0.000 1.685& 11.68 20.09 69.69 27.22 3.132& 0.000 5
6 0.000 0.000 0.000 0.000 0.000 1.674& 10.02 17.85 54.74 23.22 2.679& 0.000 6
7 0.000 0.000 0.000 0.000 0.000 1.551& 8.741 29.84 44.31 19.62 2.515& 0.000 7
8 0.000 0.000 0.000 0.000 0.000 1.566& 7.560 71.91 42.09 15.91 2.132& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 2.229& 7.846 69.69 54.61 13.79 1.889& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 2.411& 11.45 41.59 74.59 12.47 1.965& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 2.427& 12.11 28.01 121.1 11.94 2.348& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 2.593& 11.25 23.76 174.4 13.98 3.372& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 3.090& 9.637 24.20 142.5 14.44 3.129& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 3.185& 8.484 28.28 92.89 14.51 2.173& 0.000 14
15 1.210& 0.000 0.000 0.000 0.000 2.648& 7.947 70.12 71.56 13.30 1.669& 0.000 15
16 3.832& 0.000 0.000 0.000 0.000 2.388& 7.893 146.5 57.98 11.93 1.205& 0.000 16
17 3.041& 0.000 0.000 0.000 0.000 2.353& 7.837 99.67 63.40 10.71 0.909& 0.000 17
18 1.671& 0.000 0.000 0.000 0.000 2.431& 7.322 57.58 88.90 10.47 0.674& 0.000 18
19 0.809& 0.000 0.000 0.000 0.000 2.932& 7.050 170.3 91.32 9.865 0.502& 0.000 19
20 0.338& 0.000 0.000 0.000 0.000 5.534& 7.971 311.0 69.28 8.589 0.444& 0.000 20
21 0.096& 0.000 0.000 0.000 0.000 7.491 37.16 132.7 62.54 7.403 0.372& 0.000 21
22 0.019& 0.000 0.000 0.000 0.000 5.902& 33.01 722.7 69.52 6.604 0.253& 0.000 22
23 0.001& 0.000 0.000 0.000 0.000 4.455& 23.11 764.8 59.23 6.323 0.148& 0.000 23
24 0.000 0.000 0.000 0.000 0.000 4.107& 20.41 316.8 47.48 5.960& 0.063& 0.000 24
25 0.000 0.000 0.000 0.000 0.000 3.630& 60.26 139.1 40.14 5.206& 0.020& 0.000 25
26 0.000 0.000 0.000 0.000 0.000 3.804& 56.20 101.7 34.95 4.982& 0.003& 0.000 26
27 0.000 0.000 0.000 0.000 0.000 6.033& 43.53 78.48 30.99 4.503& 0.000& 0.000 27
28 0.000 0.000 0.000 0.000 0.000 16.91 61.31 63.38 27.61 4.176& 0.000 0.000 28
29 0.000 0.000 0.000 0.000 15.63 55.39 53.62 24.75 4.044& 0.003& 0.000 29
30 0.000 0.000 0.000 0.000 10.64 39.15 44.91 21.92 4.356& 0.001& 0.000 30
31 0.000 0.000 0.000 28.42 72.35 7.219& 0.000 31
Mean 0.355& 0.000 0.000 0.000 0.000 4.219& 20.76 123.1 81.31 12.26 & 1.664& 0.000
Median 0.000& 0.000 0.000 0.000 0.000 2.652& 11.25 63.38 66.34 11.93 & 1.437& 0.000
Maximum 3.832& 0.000 0.000 0.000 0.000 16.91 & 61.31 764.8 262.9 27.22 & 6.216& 0.000
Minimum 0.000& 0.000 0.000 0.000 0.000 0.627& 7.050 17.85 21.92 4.044& 0.000& 0.000
Total 11.02 & 0.000 0.000 0.000 0.000 126.6 & 643.6 3817 2439 380.1 & 49.93 & 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 20.46 & & ... Relative Uncertainty +/-30%
Ann. Median 0.096&
Annual Total 7467 &
Maximum Minimum
Daily 764.8 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 18.71 370.5 106.9 55.05 12.68 0.000 1
2 0.000 0.000 0.000 0.000 0.000 0.000 36.82 364.3 80.71 47.86 10.15 0.000 2
3 0.000 0.000 0.000 0.000 0.000 0.000 93.52 198.2 67.54 40.52 7.841 0.000 3
4 0.000 0.000 0.000 0.000 0.000 0.000 74.27 118.6 57.98 35.04 6.319 0.000 4
5 0.000 0.000 0.000 0.000 0.000 0.000 46.78 87.04 53.27 31.02 4.910& 0.000 5
6 0.000 0.000 0.000 0.000 0.000 0.000 28.04 139.9 52.58 28.44 4.098& 0.000 6
7 0.000 0.000 0.000 0.000 0.000 0.000 20.34 281.3 46.48 26.05 3.546& 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.000 17.30 208.4 215.5 32.33 3.251& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 18.71 135.2 194.5 58.32 2.944& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.000 20.57 212.6 97.19 53.78 2.709& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 0.000 16.49 562.3 70.13 41.31 2.001& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 0.000 14.23 277.0 295.4 32.18 1.271& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 0.000 12.11 145.8 690.5 26.20 0.919& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 0.000 10.72 110.3 387.1 22.64 0.655& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 0.000 9.638 105.3 318.4 19.97 0.445& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 0.000 8.758 84.85 202.2 17.57 0.366& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 0.000 8.067 71.79 157.3 16.19 0.339& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 0.000 7.828 61.34 125.5 15.11 0.204& 0.000 18
19 0.000 0.000 0.000 0.000 0.000 0.000 8.864 57.14 100.3 14.85 0.099& 0.000 19
20 0.000 0.000 0.000 0.000 0.000 0.000 30.39 96.76 82.40 14.49 0.038& 0.000 20
21 0.000 0.000 0.000 0.000 0.000 0.000 53.61 104.6 71.03 14.15 0.014& 0.000 21
22 0.000 0.000 0.000 0.000 0.000 0.000 103.7 93.05 64.79 13.53 0.004& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 0.000 94.51 551.0 68.35 12.62 0.000& 0.000 23
24 0.000 0.000 0.000 0.000 0.000 12.16 & 139.9 263.5 69.94 10.97 0.000 0.000 24
25 0.000 0.000 0.000 0.000 0.000 19.64 136.6 128.0 124.9 9.822 0.000 0.000 25
26 0.000 0.000 0.000 0.000 0.000 20.34 144.1 140.9 116.9 9.147 0.000 0.000 26
27 0.000 0.000 0.000 0.000 0.000 14.58 116.3 172.5 114.2 13.19 0.000 0.000 27
28 0.000 0.000 0.000 0.000 0.000 12.61 264.5 114.6 97.45 21.47 0.000 0.000 28
29 0.000 0.000 0.000 0.000 11.61 219.4 99.34 80.27 21.56 0.000 0.000 29
30 0.000 0.000 0.000 0.000 12.79 277.3 188.8 64.81 18.01 0.000 0.000 30
31 0.000 0.000 0.000 622.4 170.3 15.17 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 3.458& 86.27 184.4 142.5 25.44 2.160& 0.000
Median 0.000 0.000 0.000 0.000 0.000 0.000& 30.39 139.9 97.32 21.47 0.406& 0.000
Maximum 0.000 0.000 0.000 0.000 0.000 20.34 & 622.4 562.3 690.5 58.32 12.68 & 0.000
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 7.828 57.14 46.48 9.147 0.000& 0.000
Total 0.000 0.000 0.000 0.000 0.000 103.7 &2674 5715 4275 788.6 64.80 & 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 37.32 & & ... Relative Uncertainty +/-30%
Ann. Median 0.000&
Annual Total 13621 &
Maximum Minimum
Daily 690.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 34.24 57.01 $ 461.7 $ 27.43 55.61 15.10 3.582& 1
2 0.000 0.000 0.000 0.000 0.000 45.55 47.10 $ 543.1 $ 28.42 63.87 12.91 2.383& 2
3 0.000 0.000 0.000 0.000 0.000 19.29 48.54 $ 374.0 $ 28.97 71.29 11.19 1.813& 3
4 0.000 0.000 0.000 0.000 0.000 12.97 53.00 $ 253.3 $ 27.06 55.95 11.39 1.436& 4
5 0.000 0.000 0.000 0.000 0.000 9.733 72.59 $ 188.2 $ 24.44 48.39 16.93 1.044& 5
6 0.000 0.000 0.000 0.000 0.000 8.075 84.68 $ 153.0 $ 22.71 39.64 21.67 0.874& 6
7 0.000 0.000 0.000 0.000 0.000 6.897 52.07 $ 127.5 $ 21.92 32.09 30.04 0.757& 7
8 0.000 0.000 0.000 0.000 0.000 5.994 39.74 $ 110.4 $ 21.49 27.66 22.44 0.454& 8
9 0.000 0.000 0.000 0.000 0.000 7.194 34.12 $ 96.03 $ 20.98 24.90 17.10 0.250& 9
10 0.000 0.000 0.000 0.000 0.000 19.26 44.48 $ 84.37 $ 17.88 22.01 13.53 0.269& 10
11 0.000 0.000 0.000 0.000 0.000 33.50 49.69 $ 76.95 $ 17.30 20.04 11.40 0.246& 11
12 0.000 0.000 0.000 0.000 0.000 48.85 56.58 $ 69.40 $ 19.46 18.36 9.527 4.576& 12
13 0.000 0.000 0.000 0.000 0.000 33.77 39.79 $ 62.67 $ 21.53 17.71 8.123 3.254& 13
14 0.000 0.000 0.000 0.000 0.000 21.70 30.86 $ 57.20 $ 23.84 16.55 6.467 1.716& 14
15 0.000 0.000 0.000 0.000 0.000 25.09 73.73 $ 51.96 $ 22.94 14.56 5.036& 0.911& 15
16 0.000 0.000 0.000 0.000 0.000 85.00 333.9 $ 46.91 $ 21.09 12.79 3.952& 0.467& 16
17 0.000 0.000 0.000 0.000 0.000 104.0 195.9 $ 43.34 $ 21.34 11.11 3.380& 0.186& 17
18 0.000 0.000 0.000 0.000 0.000 79.00 515.7 $ 40.90 $ 28.38 10.19 2.941& 0.050& 18
19 0.000 0.000 0.000 0.000 0.000 53.57 499.6 $ 38.42 $ 32.84 9.457 2.605& 0.013& 19
20 0.000 0.000 0.000 0.000 0.000 32.39 211.7 $ 36.95 33.76 8.463 2.351& 0.002& 20
21 0.000 0.000 0.000 0.000 0.000 23.30 137.9 $ 35.64 29.84 7.413 2.142& 0.000 21
22 0.000 0.000 0.000 0.000 0.000 18.75 108.2 $ 32.90 32.10 6.478 2.238& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 16.40 118.7 $ 30.96 30.58 5.692& 3.525& 0.000 23
24 0.000 0.000 0.000 0.000 0.000 15.01 349.0 $ 30.08 25.23 6.750& 4.735& 0.000 24
25 0.000 0.000 0.000 0.000 7.977& 14.27 151.0 $ 29.19 32.72 32.88 5.439& 0.000 25
26 0.000 0.000 0.000 0.000 37.94 15.02 204.9 $ 28.29 180.8 71.73 5.627& 0.000 26
27 0.000 0.000 0.000 0.000 30.51 18.55 151.6 $ 27.77 160.4 38.29 7.112 0.000 27
28 0.000 0.000 0.000 0.000 19.17 74.36 208.5 $ 27.02 90.19 24.81 6.705 0.000 28
29 0.000 0.000 0.000 0.000 13.46 129.0 312.9 $ 27.08 66.21 24.41 5.431& 0.000 29
30 0.000 0.000 0.000 11.44 93.63 1166 $ 31.76 55.28 22.87 4.491& 0.000 30
31 0.000 0.000 12.03 664.2 $ 29.64 18.86 0.000 31
Mean 0.000 0.000 0.000 0.000 4.276& 36.81 197.2 $ 104.7 $ 39.57 27.12 & 9.184& 0.783&
Median 0.000 0.000 0.000 0.000 0.000& 22.50 108.2 $ 46.91 $ 27.24 22.01 & 6.586& 0.246&
Maximum 0.000 0.000 0.000 0.000 37.94 & 129.0 1166 $ 543.1 $ 180.8 71.73 & 30.04 & 4.576&
Minimum 0.000 0.000 0.000 0.000 0.000& 5.994 30.86 $ 27.02 $ 17.30 5.692& 2.142& 0.000&
Total 0.000 0.000 0.000 0.000 132.5 &1104 6114 $3247 $1187 840.8 & 275.5 & 24.28 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 35.31 & $ ... Relative Uncertainty +/-20%
Ann. Median 4.221& & ... Relative Uncertainty +/-30%
Annual Total 12925 &
Maximum Minimum
Daily 1166 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 77.96 53.88 86.25 75.40 7.161 0.409& 1
2 0.000 0.000 0.000 0.000 0.000 0.000 44.00 48.82 89.62 59.85 5.736& 0.182& 2
3 0.000 0.000 0.000 0.000 0.000 0.000 22.17 44.69 95.75 50.33 4.538& 0.076& 3
4 0.000 0.000 0.000 0.000 0.000 0.000 15.45 42.05 79.05 44.84 3.596& 0.030& 4
5 0.000 0.000 0.000 0.000 0.000 0.000 12.73 44.00 93.10 39.89 3.020& 0.008& 5
6 0.000 0.000 0.000 0.000 0.000 0.000 11.85 48.63 107.4 36.18 2.736& 0.001& 6
7 0.000 0.000 0.000 0.000 0.000 0.000 16.50 55.41 88.00 33.67 2.614& 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.000 20.55 51.21 84.31 30.18 2.572& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 26.68 45.49 82.74 27.73 2.755& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.000 108.9 43.97 81.20 25.85 2.167& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 0.000 142.9 56.76 146.8 24.66 1.949& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 0.000 80.26 61.19 587.9 24.33 1.931& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 0.000 42.60 77.65 643.9 23.50 1.832& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 0.000 27.45 119.8 293.5 22.07 2.115& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 0.000 22.04 335.4 260.6 20.42 1.890& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 0.000 23.87 343.4 283.0 18.18 1.677& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 0.000 89.41 252.9 194.5 15.49 1.519& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 0.000 115.8 165.7 175.9 13.51 2.585& 0.000 18
19 0.000 0.000 0.000 0.000 0.000 0.000 548.5 493.6 168.2 12.30 19.24 & 0.000 19
20 0.000 0.000 0.000 0.000 0.000 0.000 1013 559.5 125.4 11.65 28.60 0.000 20
21 0.000 0.000 0.000 0.000 0.000 0.000 1043 956.8 266.8 11.12 18.32 0.000 21
22 0.000 0.000 0.000 0.000 0.000 0.000 576.7 707.3 345.1 10.72 10.75 0.000 22
23 0.000 0.000 0.000 0.000 0.000 0.000 615.9 541.8 202.8 9.977 6.677& 0.000 23
24 0.000 0.000 0.000 0.000 0.000 0.000 622.3 494.7 137.3 8.980 4.420& 0.000 24
25 0.000 0.000 0.000 0.000 0.000 13.02 & 253.3 280.5 103.0 8.304 2.923& 0.000 25
26 0.000 0.000 0.000 0.000 0.000 20.63 161.6 200.0 79.74 8.540 2.105& 0.000 26
27 0.000 0.000 0.000 0.000 0.000 18.63 117.2 152.7 66.04 9.697 1.559& 0.000 27
28 0.000 0.000 0.000 0.000 0.000 23.25 93.40 127.2 57.25 11.67 1.364& 0.000 28
29 0.000 0.000 0.000 0.000 48.35 78.82 126.5 56.93 11.97 1.243& 0.000 29
30 0.000 0.000 0.000 0.000 85.08 68.11 115.2 77.42 10.44 0.773& 0.000 30
31 0.000 0.000 0.000 59.38 96.52 8.929 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 6.965& 198.5 217.5 172.0 23.24 5.012& 0.023&
Median 0.000 0.000 0.000 0.000 0.000 0.000& 78.82 119.8 105.2 18.18 2.599& 0.000&
Maximum 0.000 0.000 0.000 0.000 0.000 85.08 &1043 956.8 643.9 75.40 28.60 & 0.409&
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 11.85 42.05 56.93 8.304 0.773& 0.000&
Total 0.000 0.000 0.000 0.000 0.000 209.0 &6152 6743 5160 720.4 150.4 & 0.706&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 52.43 & & ... Relative Uncertainty +/-30%
Ann. Median 0.000&
Annual Total 19136 &
Maximum Minimum
Daily 1043 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 24.42 41.77 2.489& 0.000 0.000 1
2 0.000 0.000 0.000 0.000 0.000 0.000 0.000 20.14 81.68 2.132& 0.000 0.000 2
3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 16.58 50.78 1.764& 0.000 0.000 3
4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 13.97 30.00 1.391& 0.000 0.000 4
5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 12.37 22.46 1.175& 0.000 0.000 5
6 0.000 0.000 0.000 0.000 0.000 0.000 0.000 11.25 18.84 0.923& 0.000 0.000 6
7 0.000 0.000 0.000 0.000 0.000 0.000 0.000 10.44 17.07 0.721& 0.000 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.000 0.000 9.852 22.99 0.603& 0.000 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 0.000 9.490 32.20 0.346& 0.000 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.000 49.62 & 9.104 38.47 0.324& 0.000 0.000 10
11 0.000 0.000 0.000 0.000 0.000 0.000 82.44 8.660 32.50 0.266& 0.000 0.000 11
12 0.000 0.000 0.000 0.000 0.000 0.000 116.5 23.25 26.51 0.148& 0.000 0.000 12
13 0.000 0.000 0.000 0.000 0.000 0.000 128.8 111.3 28.01 0.072& 0.000 0.000 13
14 0.000 0.000 0.000 0.000 0.000 0.000 77.67 118.7 22.76 0.027& 0.000 0.000 14
15 0.000 0.000 0.000 0.000 0.000 0.000 45.57 64.16 18.34 0.004& 0.000 0.000 15
16 0.000 0.000 0.000 0.000 0.000 0.000 29.25 38.24 14.86 0.000& 0.000 0.000 16
17 0.000 0.000 0.000 0.000 0.000 0.000 23.56 27.53 12.43 0.000 0.000 0.000 17
18 0.000 0.000 0.000 0.000 0.000 0.000 20.48 23.65 10.62 0.000 0.000 0.000 18
19 0.000 0.000 0.000 0.000 0.000 0.000 18.21 24.96 9.393 0.000 0.000 0.000 19
20 0.000 0.000 0.000 0.000 0.000 0.000 17.06 25.22 8.401 0.000 0.000 0.000 20
21 0.000 0.000 0.000 0.000 0.000 0.000 17.76 21.13 7.589 0.000 0.000 0.000 21
22 0.000 0.000 0.000 0.000 0.000 0.000 17.13 26.28 7.004 0.000 0.000 0.000 22
23 0.000 0.000 0.000 0.000 0.000 0.000 15.21 41.23 6.124 0.000 0.000 0.000 23
24 0.000 0.000 0.000 0.000 0.000 0.000 14.42 31.83 5.265& 0.000 0.000 0.000 24
25 0.000 0.000 0.000 0.000 0.000 0.000 13.47 22.93 4.689& 0.000 0.000 0.000 25
26 0.000 0.000 0.000 0.000 0.000 0.000 13.16 18.46 4.214& 0.000 0.000 0.000 26
27 0.000 0.000 0.000 0.000 0.000 0.000 13.52 15.81 3.852& 0.000 0.000 0.000 27
28 0.000 0.000 0.000 0.000 0.000 0.000 16.41 14.74 3.553& 0.000 0.000 0.000 28
29 0.000 0.000 0.000 0.000 0.000 31.60 14.21 3.212& 0.000 0.000 0.000 29
30 0.000 0.000 0.000 0.000 0.000 44.01 13.36 2.865& 0.000 0.000 0.000 30
31 0.000 0.000 0.000 36.23 14.38 0.000 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 0.000 27.16 & 27.02 19.62 & 0.400& 0.000 0.000
Median 0.000 0.000 0.000 0.000 0.000 0.000 17.06 & 20.14 15.96 & 0.000& 0.000 0.000
Maximum 0.000 0.000 0.000 0.000 0.000 0.000 128.8 & 118.7 81.68 & 2.489& 0.000 0.000
Minimum 0.000 0.000 0.000 0.000 0.000 0.000 0.000& 8.660 2.865& 0.000& 0.000 0.000
Total 0.000 0.000 0.000 0.000 0.000 0.000 842.1 & 837.6 588.5 & 12.38 & 0.000 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 6.248& & ... Relative Uncertainty +/-30%
Ann. Median 0.000&
Annual Total 2281 &
Maximum Minimum
Daily 128.8 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 0.000$ 0.000$ 15.38 $ 190.5 35.70 45.83 13.86 0.000 1
2 0.000 0.000 0.000 0.000 0.000$ 0.000$ 11.81 $ 386.2 49.17 36.27 10.79 0.000 2
3 0.000 0.000 0.000 0.000 0.000$ 0.000$ 21.12 $ 370.4 172.5 29.98 9.912 0.000 3
4 0.000 0.000 0.000 0.000 0.000$ 0.000$ 23.15 $ 212.5 166.2 25.98 15.36 0.000 4
5 0.000 0.000 0.000 0.000 0.000$ 0.000$ 18.78 $ 117.8 119.5 23.19 27.42 0.000 5
6 0.000 0.000 0.000 0.000 0.000$ 0.000$ 15.47 $ 76.81 88.77 20.94 25.79 0.181& 6
7 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 12.95 $ 61.50 67.78 19.07 21.79 71.29 & 7
8 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 10.63 71.94 50.18 17.56 24.73 49.76 8
9 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 9.927 96.00 38.96 16.78 27.94 28.46 9
10 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 9.071 66.38 31.93 15.61 21.95 16.19 10
11 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 10.40 49.54 26.35 16.04 16.40 10.05 11
12 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 16.58 39.59 24.02 15.14 12.44 6.983 12
13 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 22.63 33.92 22.19 14.53 9.878 5.346& 13
14 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 20.41 40.08 20.90 13.65 8.203 4.464& 14
15 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 22.87 76.72 21.23 12.70 7.060 3.698& 15
16 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 79.22 302.1 28.85 11.14 6.238 2.742& 16
17 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 74.28 220.5 38.43 9.864 5.414& 1.945& 17
18 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 39.28 114.0 50.06 10.14 4.757& 1.296& 18
19 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 24.53 75.02 154.4 15.81 4.026& 0.781& 19
20 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 20.43 55.03 118.5 18.94 3.379& 0.402& 20
21 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 23.75 43.95 73.62 19.14 2.704& 0.154& 21
22 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 29.77 248.6 76.63 15.51 2.170& 0.060& 22
23 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 79.79 507.1 75.68 13.93 1.437& 0.022& 23
24 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 57.33 241.9 55.44 14.52 0.719& 0.002& 24
25 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 39.82 143.2 42.18 29.26 0.369& 0.000 25
26 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 27.09 106.0 39.21 67.89 0.200& 0.000 26
27 0.000 0.000 0.000 0.000$ 0.000$ 0.000$ 30.85 81.46 66.54 64.54 0.106& 0.000 27
28 0.000 0.000 0.000 0.000$ 0.000$ 9.111& 80.52 65.05 109.4 66.83 0.037& 0.000 28
29 0.000 0.000 0.000$ 0.000$ 9.793& 307.8 52.44 104.4 46.97 0.008& 0.000 29
30 0.000 0.000 0.000$ 0.000$ 4.346& 316.0 44.62 66.22 27.44 0.000& 0.000 30
31 0.000 0.000 0.000$ 217.6 39.30 19.02 0.000 31
Mean 0.000 0.000 0.000 0.000$ 0.000$ 0.775& 54.49 $ 136.5 67.83 24.98 9.503& 6.575&
Median 0.000 0.000 0.000 0.000$ 0.000$ 0.000& 23.15 $ 76.81 52.81 18.94 6.649& 0.154&
Maximum 0.000 0.000 0.000 0.000$ 0.000$ 9.793& 316.0 $ 507.1 172.5 67.89 27.94 & 71.29 &
Minimum 0.000 0.000 0.000 0.000$ 0.000$ 0.000& 9.071$ 33.92 20.90 9.864 0.000& 0.000&
Total 0.000 0.000 0.000 0.000$ 0.000$ 23.25 &1689 $4230 2035 774.2 285.1 & 203.8 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 25.32 & $ ... Relative Uncertainty +/-20%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 9241 &
Maximum Minimum
Daily 507.1 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 14.39 " 9.500 19.47 16.41 0.000& 0.000 1
2 0.000 0.000 0.000 0.000 0.000 0.000 13.02 " 12.29 19.33 13.02 0.000 0.000 2
3 0.000 0.000 0.000 0.000 0.000 0.000 12.71 " 16.76 18.11 10.24 0.000 0.000 3
4 0.000 0.000 0.000 0.000 0.000 0.000 11.60 " 28.08 69.45 8.617 0.176& 0.000 4
5 0.000 0.000 0.000 0.000 0.000 0.000 11.47 " 51.17 153.8 7.718 4.131& 0.000 5
6 0.000 0.000 0.000 0.000 0.000 0.000 11.39 " 50.23 96.55 7.001 15.44 0.000 6
7 0.000 0.000 0.000 0.000 0.000 0.000 11.27 " 53.12 59.89 6.843 10.11 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.000 12.53 " 62.92 39.72 6.518 7.197 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 11.73 " 50.80 27.84 8.124 4.814& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.000 13.01 " 34.02 22.44 7.269 3.331& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 0.000 23.28 " 24.23 19.13 6.267 2.379& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 0.000 35.64 " 22.37 17.46 4.780& 1.338& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 0.000 25.90 " 88.72 15.25 4.023& 0.729& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 0.000 18.66 " 80.52 14.17 3.554& 0.270& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 22.43 & 14.87 " 65.43 13.06 3.463& 0.072& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 21.02 13.82 " 44.73 11.33 3.529& 0.011& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 17.32 16.87 " 33.61 9.935 4.081& 0.000& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 13.54 22.04 " 26.43 9.104 4.019& 0.000 0.000 18
19 0.000 0.000 0.000 0.000 0.000 53.64 " 24.03 " 22.93 9.784 3.546& 0.000 0.000 19
20 0.000 0.000 0.000 0.000 0.000 96.02 " 19.19 " 19.35 9.272 2.950& 0.000 0.000 20
21 0.000 0.000 0.000 0.000 0.000 121.0 " 15.63 " 17.38 9.192 2.495& 0.000 0.000 21
22 0.000 0.000 0.000 0.000 0.000 76.00 " 13.28 " 24.13 9.808 2.188& 0.000 0.000 22
23 0.000 0.000 0.000 0.000 0.000 43.96 " 11.85 " 25.72 12.23 1.822& 0.000 0.000 23
24 0.000 0.000 0.000 0.000 0.000 27.13 " 11.09 " 23.43 11.45 1.429& 0.000 0.000 24
25 0.000 0.000 0.000 0.000 0.000 20.42 " 10.48 " 19.62 11.80 1.067& 0.000 0.000 25
26 0.000 0.000 0.000 0.000 0.000 17.21 " 9.912" 17.08 16.41 0.825& 0.000 0.000 26
27 0.000 0.000 0.000 0.000 0.000 15.64 " 9.775 15.18 23.89 0.493& 0.000 0.000 27
28 0.000 0.000 0.000 0.000 0.000 14.99 " 9.306 14.50 36.93 0.196& 0.000 0.000 28
29 0.000 0.000 0.000 0.000 0.000 16.98 " 8.730 18.54 31.25 0.082& 0.000 0.000 29
30 0.000 0.000 0.000 0.000 16.76 " 8.697 25.41 21.64 0.023& 0.000 0.000 30
31 0.000 0.000 0.000 9.360 22.58 0.004& 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 19.80 & 14.69 " 32.93 27.99 4.600& 1.667& 0.000
Median 0.000 0.000 0.000 0.000 0.000 14.26 & 12.71 " 24.23 17.78 3.554& 0.000& 0.000
Maximum 0.000 0.000 0.000 0.000 0.000 121.0 & 35.64 " 88.72 153.8 16.41 & 15.44 & 0.000
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 8.697" 9.500 9.104 0.004& 0.000& 0.000
Total 0.000 0.000 0.000 0.000 0.000 594.0 & 455.5 "1021 839.7 142.6 & 50.01 & 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 8.477& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 3103 &
Maximum Minimum
Daily 153.8 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 0.000 0.000 62.07 313.8 117.3 7.064 0.000 1
2 0.000 0.000 0.000 0.000 0.000 0.000 0.000 67.96 183.0 91.66 6.225 0.000 2
3 0.000 0.000 0.000 0.000 0.000 0.000 0.000 48.43 122.6 74.92 5.226& 0.000 3
4 0.000 0.000 0.000 0.000 0.000 0.000 0.000 30.62 169.3 61.95 4.577& 0.000 4
5 0.000 0.000 0.000 0.000 0.000 0.000 0.000 23.80 135.4 53.06 4.111& 0.000 5
6 0.000 0.000 0.000 0.000 0.000 0.000 0.000 45.86 92.17 48.97 3.455& 0.000 6
7 0.000 0.000 0.000 0.000 0.000 0.000 0.000 64.30 128.9 45.03 2.855& 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.000 0.000 274.6 238.6 39.93 3.619& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 0.000 455.0 139.8 53.34 3.090& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.000 0.000 241.1 87.57 98.93 1.608& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 0.000 0.000 119.6 218.0 70.74 1.152& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 0.000 0.000 103.6 666.0 51.22 0.861& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 0.000 0.000 86.63 512.8 40.80 0.568& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 0.000 2.582& 77.64 1519 " 34.11 0.333& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 0.000 5.525& 72.68 2215 " 28.65 0.190& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 0.000 9.441 184.6 1162 " 25.95 0.115& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 0.000 17.63 135.2 760.5 25.10 0.056& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 0.000 22.28 117.2 589.9 24.06 0.026& 0.000 18
19 0.000 0.000 0.000 0.000 0.000 0.000 19.11 87.16 357.1 23.11 0.003& 0.000 19
20 0.000 0.000 0.000 0.000 0.000 0.000 12.57 62.44 257.0 29.80 0.000& 0.000 20
21 0.000 0.000 0.000 0.000 0.000 0.000 8.195 47.57 231.9 40.20 0.000 0.000 21
22 0.000 0.000 0.000 0.000 0.000 0.000 6.203 38.83 296.6 32.05 0.000 0.000 22
23 0.000 0.000 0.000 0.000 0.000 0.000 5.228& 33.03 595.5 23.93 0.000 0.000 23
24 0.000 0.000 0.000 0.000 0.000 0.000 5.416& 29.12 490.5 19.70 0.000 0.000 24
25 0.000 0.000 0.000 0.000 0.000 0.000 14.12 26.78 282.8 15.62 0.000 0.000 25
26 0.000 0.000 0.000 0.000 0.000 0.000 26.77 42.52 182.9 14.01 0.000 0.000 26
27 0.000 0.000 0.000 0.000 0.000 0.000 135.3 127.2 146.3 13.29 0.000 0.000 27
28 0.000 0.000 0.000 0.000 0.000 0.000 214.1 294.1 124.5 12.42 0.000 0.000 28
29 0.000 0.000 0.000 0.000 0.000 128.3 363.9 102.3 11.07 0.000 0.000 29
30 0.000 0.000 0.000 0.000 0.000 57.40 204.4 99.59 9.509 0.000 0.000 30
31 0.000 0.000 0.000 39.96 307.2 8.165 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 0.000 23.55 & 125.0 414.0 " 39.96 1.504& 0.000
Median 0.000 0.000 0.000 0.000 0.000 0.000 5.416& 77.64 235.3 " 32.05 0.152& 0.000
Maximum 0.000 0.000 0.000 0.000 0.000 0.000 214.1 & 455.0 2215 " 117.3 7.064& 0.000
Minimum 0.000 0.000 0.000 0.000 0.000 0.000 0.000& 23.80 87.57 " 8.165 0.000& 0.000
Total 0.00 0.00 0.00 0.00 0.00 0.00 730.1 & 3875 12421 " 1239 45.13& 0.00
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 50.17 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 18310 &
Maximum Minimum
Daily 2215 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 0.000 0.000 6.062& 17.95 69.20 151.5 43.07 3.436& 0.286& 1
2 0.000 0.000 0.000 0.000 0.000 4.617& 27.03 58.01 94.39 33.99 2.904& 0.846& 2
3 0.000 0.000 0.000 0.000 0.000 3.687& 123.1 49.80 70.39 27.99 2.533& 0.407& 3
4 0.000 0.000 0.000 0.000 0.000 3.624& 99.36 43.42 57.86 24.33 2.147& 0.104& 4
5 0.000 0.000 0.000 0.000 0.000 3.723& 61.17 37.64 51.39 25.92 1.820& 0.024& 5
6 0.000 0.000 0.000 0.000 0.000 3.020& 49.73 32.94 50.46 43.77 1.556& 0.006& 6
7 0.000 0.000 0.000 0.000 0.000 2.407& 147.8 30.42 67.12 41.18 1.338& 0.000& 7
8 0.000 0.000 0.000 0.000 0.000 2.300& 271.2 32.07 157.6 30.94 1.029& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 2.008& 213.0 32.04 241.5 23.79 0.850& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 2.907& 114.8 28.56 168.4 20.81 0.724& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 10.28 & 73.79 25.70 106.8 17.91 0.547& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 12.62 54.40 22.71 77.68 15.76 0.329& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 11.92 42.64 20.08 61.72 13.79 0.185& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 12.05 53.63 18.47 50.02 12.59 0.070& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 10.53 126.7 16.82 41.91 11.23 0.025& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 9.629 100.0 16.15 35.94 9.789 0.007& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 8.605 70.02 16.05 31.37 8.485 0.001& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 140.3 52.75 27.55 27.08 7.729 0.000 0.000 18
19 0.000 0.000 0.000 0.000 0.000 167.8 43.54 97.65 23.93 7.469 0.000 0.000 19
20 0.000 0.000 0.000 0.000 0.000 170.3 44.18 113.5 21.48 7.829 0.000 0.000 20
21 0.000 0.000 0.000 0.000 0.000 125.3 48.89 96.29 21.95 10.40 0.000 0.000 21
22 0.000 0.000 0.000 0.000 0.000 181.4 263.2 101.3 69.78 11.93 0.000 0.000 22
23 0.000 0.000 0.000 0.000 0.000 125.8 375.2 85.62 83.90 10.30 0.000 0.000 23
24 0.000 0.000 0.000 0.000 0.000 75.94 267.8 61.46 57.53 8.556 0.000 0.000 24
25 0.000 0.000 0.000 0.000 0.000 48.79 177.8 47.17 42.26 7.387 0.000 0.000 25
26 0.000 0.000 0.000 0.000 0.000 35.94 161.5 38.92 33.39 6.755 0.000 0.000 26
27 0.000 0.000 0.000 0.000 0.000 28.71 227.4 33.12 30.75 6.278 0.000 0.000 27
28 0.000 0.000 0.000 0.000 1.005& 24.49 193.2 30.42 55.57 5.883 0.000 0.000 28
29 0.000 0.000 0.000 14.75 " 21.83 133.6 27.88 58.62 5.340& 0.000 0.000 29
30 0.000 0.000 0.000 12.07 " 19.60 102.0 364.6 50.25 4.693& 0.000 0.000 30
31 0.000 0.000 8.942" 83.02 286.8 4.129& 0.000 31
Mean 0.000 0.000 0.000 0.000 1.186& 42.54 & 123.2 63.31 69.75 16.45 & 0.650& 0.054&
Median 0.000 0.000 0.000 0.000 0.000& 11.98 & 100.0 33.12 56.55 11.23 & 0.016& 0.000&
Maximum 0.000 0.000 0.000 0.000 14.75 & 181.4 & 375.2 364.6 241.5 43.77 & 3.436& 0.846&
Minimum 0.000 0.000 0.000 0.000 0.000& 2.008& 17.95 16.05 21.48 4.129& 0.000& 0.000&
Total 0.000 0.000 0.000 0.000 36.77 &1276 &3820 1962 2093 510.0 & 19.50 & 1.672&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 26.63 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 9720 &
Maximum Minimum
Daily 375.2 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 0.000 0.000 0.000 1.763& 206.6 " 69.67 " 6.224 0.000 0.000 1
2 0.000 0.000 0.000 0.000 0.000 0.000 1.568& 167.1 " 65.65 " 5.766 0.000 0.000 2
3 0.000 0.000 0.000 0.000 0.000 0.000 1.754& 66.01 " 56.80 " 5.429& 0.000 0.000 3
4 0.000 0.000 0.000 0.000 0.000 0.000 3.982& 37.99 " 50.01 " 5.160& 0.000 0.000 4
5 0.000 0.000 0.000 0.000 0.000 0.000 7.018" 27.39 " 50.83 " 4.997& 0.000 0.000 5
6 0.000 0.000 0.000 0.000 0.000 0.000 9.673" 22.85 " 85.87 " 4.488& 0.000 0.000 6
7 0.000 0.000 0.000 0.000 0.000 0.000 11.37 " 20.82 " 63.84 " 4.225& 0.000 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.000 14.68 " 24.69 " 46.69 " 3.709& 0.000 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 16.15 " 62.71 " 37.40 " 3.213& 0.000 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.000 18.44 " 64.63 " 32.59 " 2.757& 0.000 0.000 10
11 0.000 0.000 0.000 0.000 0.000 0.000 13.10 " 70.48 " 30.09 " 2.338& 0.000 0.000 11
12 0.000 0.000 0.000 0.000 0.000 0.000 10.14 " 52.21 " 44.03 " 1.752& 0.000 0.000 12
13 0.000 0.000 0.000 0.000 0.000 0.000 8.731" 35.95 " 90.37 " 1.297& 0.000 0.000 13
14 0.000 0.000 0.000 0.000 0.000 0.000 7.208" 27.68 " 84.15 " 1.119& 0.000 0.000 14
15 0.000 0.000 0.000 0.000 0.000 0.000 5.869& 23.57 " 51.81 " 0.946& 0.000 0.000 15
16 0.000 0.000 0.000 0.000 0.000 0.000 5.196& 20.50 " 35.51 " 0.822& 0.000 0.000 16
17 0.000 0.000 0.000 0.000 0.000 0.000 4.750& 19.30 " 27.29 " 0.900& 0.000 0.000 17
18 0.000 0.000 0.000 0.000 0.000 0.000 4.477& 28.40 " 23.59 " 1.532& 0.000 0.000 18
19 0.000 0.000 0.000 0.000 0.000 0.000 5.020& 41.89 " 22.06 " 1.925& 0.000 0.000 19
20 0.000 0.000 0.000 0.000 0.000 0.000 15.82 " 106.6 " 19.50 " 1.152& 0.000 0.000 20
21 0.000 0.000 0.000 0.000 0.000 0.000 36.46 " 194.7 " 16.61 " 0.880& 0.000 0.000 21
22 0.000 0.000 0.000 0.000 0.000 0.000 39.83 " 277.5 " 14.64 " 0.709& 0.000 0.000 22
23 0.000 0.000 0.000 0.000 0.000 0.000 38.70 " 164.6 " 13.02 " 0.536& 0.000 0.000 23
24 0.000 0.000 0.000 0.000 0.000 0.000 35.45 " 96.31 " 11.47 " 0.362& 0.000 0.000 24
25 0.000 0.000 0.000 0.000 0.000 1.097& 23.02 " 66.68 " 9.928 0.231& 0.000 0.000 25
26 0.000 0.000 0.000 0.000 0.000 5.040& 18.78 " 50.46 " 8.881 0.104& 0.000 0.000 26
27 0.000 0.000 0.000 0.000 0.000 4.321& 17.83 " 40.84 " 8.086 0.036& 0.000 0.000 27
28 0.000 0.000 0.000 0.000 0.000 3.589& 17.57 " 45.07 " 7.678 0.016& 0.000 0.000 28
29 0.000 0.000 0.000 0.000 3.018& 41.83 " 44.03 " 7.227 0.002& 0.000 0.000 29
30 0.000 0.000 0.000 0.000 2.487& 101.5 " 53.24 " 6.683 0.000 0.000 0.000 30
31 0.000 0.000 0.000 123.8 " 63.71 " 0.000 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 0.652& 21.34 & 71.76 " 36.40 " 2.020& 0.000 0.000
Median 0.000 0.000 0.000 0.000 0.000 0.000& 13.10 & 50.46 " 31.34 " 1.152& 0.000 0.000
Maximum 0.000 0.000 0.000 0.000 0.000 5.040& 123.8 & 277.5 " 90.37 " 6.224& 0.000 0.000
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 1.568& 19.30 " 6.683" 0.000& 0.000 0.000
Total 0.000 0.000 0.000 0.000 0.000 19.55 & 661.5 &2225 "1092 " 62.63 & 0.000 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 11.12 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 4060 &
Maximum Minimum
Daily 277.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 6.123 19.91 48.50 73.94 322.7 57.02 6.714 0.000 1
2 0.000 0.000 0.000 0.000 5.952 15.70 33.70 64.94 259.1 62.67 5.848& 0.000 2
3 0.000 0.000 0.000 0.000 5.544& 13.19 26.89 53.42 185.4 58.80 5.053& 0.000 3
4 0.000 0.000 0.000 0.000 4.824& 12.51 23.01 49.24 151.2 52.41 4.106& 0.000 4
5 0.000 0.000 0.000 0.000 3.884& 13.34 20.55 53.99 125.6 49.30 3.507& 0.000 5
6 0.000 0.000 0.000 0.000 3.509& 12.81 18.81 56.45 105.4 41.69 2.935& 0.000 6
7 0.000 0.000 0.000 0.000 5.450& 32.41 17.59 117.1 101.2 34.63 2.342& 0.000 7
8 0.000 0.000 0.000 0.000 11.29 58.10 19.51 266.4 116.7 50.70 1.878& 0.000 8
9 0.000 0.000 0.000 0.000 9.586 51.40 120.2 285.4 119.7 151.8 1.539& 0.000 9
10 0.000 0.000 0.000 0.000 11.04 32.41 704.8 243.5 95.53 128.4 1.321& 0.000 10
11 0.000 0.000 0.000 0.000 7.919 24.97 701.4 187.0 83.94 79.61 1.129& 0.000 11
12 0.000 0.000 0.000 0.000 6.031& 22.44 298.3 204.3 73.84 54.11 0.926& 0.000 12
13 0.000 0.000 0.000 0.000 4.799& 110.5 147.3 155.5 62.66 40.32 0.892& 0.000 13
14 0.000 0.000 0.000 0.000 4.140& 170.6 95.87 108.1 53.57 31.94 0.849& 0.000 14
15 0.000 0.000 0.000 0.000 3.633& 104.9 73.04 89.27 48.54 27.77 0.575& 0.000 15
16 0.000 0.000 0.000 0.000 3.511& 58.87 61.89 175.0 50.89 27.31 0.621& 0.000 16
17 0.000 0.000 0.000 0.000 3.452& 39.23 306.1 204.6 52.97 25.62 0.927& 0.000 17
18 0.000 0.000 0.000 0.000 3.099& 29.78 361.9 618.0 47.37 22.84 0.684& 0.000 18
19 0.000 0.000 0.000 0.000 3.082& 25.04 233.5 459.8 72.75 20.28 0.563& 0.000 19
20 0.000 0.000 0.000 0.000 3.167& 24.69 142.9 274.0 99.08 18.91 0.343& 0.000 20
21 0.000 0.000 0.000 0.000 17.28 & 45.92 250.6 236.8 72.54 17.47 0.152& 0.000 21
22 0.000 0.000 0.000 0.000 78.74 46.61 427.1 218.1 58.01 15.64 0.061& 0.000 22
23 0.000 0.000 0.000 0.000 63.28 40.99 283.5 240.8 63.24 14.16 0.011& 0.000 23
24 0.000 0.000 0.000 0.000 58.05 35.00 165.8 155.9 68.53 12.30 0.000& 0.000 24
25 0.000 0.000 0.000 0.000 75.43 30.50 115.9 112.8 60.81 10.65 0.000 0.000 25
26 0.000 0.000 0.000 0.000 56.68 28.82 90.67 92.57 59.19 9.565 0.000 0.000 26
27 0.000 0.000 0.000 0.000 36.02 26.00 77.17 439.3 56.94 8.976 0.000 0.000 27
28 0.000 0.000 0.000 0.000 40.29 24.26 70.24 774.5 94.71 8.545 0.000 0.000 28
29 0.000 0.000 0.000 4.831& 49.32 85.28 65.83 593.5 90.85 7.995 0.000 0.000 29
30 0.000 0.000 7.733 37.36 74.39 61.31 284.9 64.03 7.697 0.000 0.000 30
31 0.000 0.000 26.65 58.85 245.0 7.490 0.000 31
Mean 0.000 0.000 0.000 0.419& 20.94 & 43.69 165.2 230.1 97.23 37.31 1.432& 0.000
Median 0.000 0.000 0.000 0.000& 6.123& 31.45 90.67 204.3 73.29 27.31 0.767& 0.000
Maximum 0.000 0.000 0.000 7.733& 78.74 & 170.6 704.8 774.5 322.7 151.8 6.714& 0.000
Minimum 0.000 0.000 0.000 0.000& 3.082& 12.51 17.59 49.24 47.37 7.490 0.000& 0.000
Total 0.000 0.000 0.000 12.56 & 649.1 &1311 5123 7134 2917 1157 42.97 & 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 50.12 & & ... Relative Uncertainty +/-30%
Ann. Median 3.759&
Annual Total 18345 &
Maximum Minimum
Daily 774.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 0.000 0.000 0.000 5.010& 548.2 157.8 111.5 10.09 0.000 1
2 0.000 0.000 0.067& 0.000 0.000 0.000 20.07 315.5 293.9 83.21 8.422 0.000 2
3 0.000 1.697& 0.032& 0.000 0.000 0.000 19.70 181.8 215.6 67.17 7.218 0.000 3
4 0.000 0.710& 0.231& 0.000 0.000 0.000 22.75 142.8 130.2 53.71 6.109 0.000 4
5 0.000 0.058& 0.739& 0.000 0.000 0.000 22.86 113.4 98.12 42.92 4.955& 0.000 5
6 0.000 0.000& 0.331& 0.000 0.000 0.000 41.50 91.53 80.94 35.65 3.887& 0.000 6
7 0.000 0.000 0.056& 0.000 0.000 0.000 43.95 78.21 68.46 31.41 2.932& 0.000 7
8 0.000 0.000 0.004& 0.000 0.000 0.000 64.53 75.08 58.10 28.99 2.298& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 57.28 842.2 " 51.34 27.32 1.790& 0.000 9
10 0.000 73.50 & 0.000 0.000 0.000 0.000 32.05 1085 " 47.57 25.89 1.320& 0.000 10
11 0.000 175.1 0.000 0.000 0.000 0.000 23.17 592.3 47.79 25.93 0.958& 0.000 11
12 0.000 97.65 0.043& 0.000 0.000 0.000 19.91 482.0 50.41 23.86 0.649& 0.000 12
13 0.000 43.96 0.119& 0.000 0.000 0.000 20.41 760.5 49.94 21.81 0.474& 0.000 13
14 0.000 22.81 0.051& 0.000 0.000 0.000 18.34 991.6 " 42.89 20.12 0.272& 0.000 14
15 0.000 16.55 0.009& 0.000 0.000 0.000 17.87 1091 36.69 18.66 0.109& 0.000 15
16 0.000 12.17 0.000 0.000 0.000 0.000 25.96 921.4 32.96 17.63 0.033& 0.000 16
17 0.000 8.688 0.000 0.000 0.000 0.000 33.90 536.0 30.18 19.48 0.018& 0.000 17
18 0.000 6.151& 0.000 0.000 0.000 0.000 25.34 333.2 27.52 25.25 0.014& 0.000 18
19 0.000 4.228& 0.000 0.000 0.000 0.000 20.73 269.7 26.17 27.93 0.008& 0.000 19
20 0.000 2.858& 0.000 0.000 0.000 0.000 31.93 253.6 27.68 22.46 0.003& 0.000 20
21 0.000 1.825& 0.000 0.000 0.000 0.000 59.03 192.6 35.35 17.75 0.000& 0.000 21
22 0.000 1.094& 0.000 0.000 0.000 0.000 86.26 154.7 75.13 15.32 0.000 0.000 22
23 0.000 0.672& 0.000 0.000 0.000 1.888& 107.2 131.2 149.4 14.33 0.000 0.000 23
24 0.000 0.351& 0.000 0.000 0.000 12.20 230.2 110.6 124.2 13.70 0.000 0.000 24
25 0.000 0.144& 0.000 0.000 0.000 9.500 155.0 94.27 177.1 12.90 0.000 0.000 25
26 0.000 0.048& 0.000 0.000 0.000 7.735 105.3 82.63 293.1 12.43 0.000 0.000 26
27 0.000 0.011& 0.000 0.000 0.000 6.343 97.79 74.37 259.4 12.39 0.000 0.000 27
28 0.000 0.000& 0.000 0.000 0.000 4.958& 165.5 66.32 131.5 13.12 0.000 0.000 28
29 0.000 0.000 0.000 0.000 4.119& 231.7 59.45 158.3 13.53 0.000 0.000 29
30 0.000 0.000 0.000 0.000 3.714& 316.1 55.23 174.4 14.30 0.000 0.000 30
31 0.000 0.000 0.000 311.6 56.29 12.16 0.000 31
Mean 0.000 16.79 & 0.054& 0.000 0.000 1.682& 78.48 & 347.8 " 105.1 28.48 1.719& 0.000
Median 0.000 0.902& 0.000& 0.000 0.000 0.000& 33.90 & 181.8 " 71.80 21.81 0.071& 0.000
Maximum 0.000 175.1 & 0.739& 0.000 0.000 12.20 & 316.1 &1091 " 293.9 111.5 10.09 & 0.000
Minimum 0.000 0.000& 0.000& 0.000 0.000 0.000& 5.010& 55.23 " 26.17 12.16 0.000& 0.000
Total 0.00 470.2 & 1.68& 0.00 0.00 50.46& 2433 &10783 " 3152 882.8 51.56& 0.00
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 48.83 & " ... Relative Uncertainty +/-10%
Ann. Median 0.003& & ... Relative Uncertainty +/-30%
Annual Total 17825 &
Maximum Minimum
Daily 1091 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 24.60 221.4 785.6 24.37 10.58 0.003& 1
2 0.000 0.000 0.000 0.000 0.000 0.000 45.62 887.9 434.6 23.52 9.707 0.003& 2
3 0.000 0.000 0.000 0.000 0.000 0.000 277.4 955.8 289.3 22.06 9.342 0.001& 3
4 0.000 0.000 0.000 0.000 0.000 0.000 238.2 1352 " 230.0 21.96 8.579 0.000 4
5 0.000 0.000 0.000 0.000 0.000 0.000 254.7 1273 " 248.5 54.48 8.149 0.000 5
6 0.000 0.000 0.000 0.000 0.000 0.000 222.8 919.0 256.5 53.71 7.305 0.000 6
7 0.000 0.000 0.000 0.000 0.000 0.000 128.9 439.4 199.2 41.65 6.685 0.000 7
8 0.000 0.000 0.000 0.000 0.000 9.614& 76.33 280.6 176.8 34.14 6.193 0.000 8
9 0.000 0.000 0.000 0.000 0.000 17.89 56.06 624.5 153.7 27.96 5.573& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 30.59 44.00 1012 137.3 25.02 5.292& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 67.55 36.45 804.8 145.8 22.17 4.929& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 37.48 31.28 470.2 136.3 20.78 4.745& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 29.90 30.03 311.6 113.5 20.30 4.146& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 21.10 32.22 407.9 105.8 44.08 3.530& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 17.58 85.01 474.7 92.83 110.1 3.042& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 14.74 108.6 337.7 80.99 77.13 2.343& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 11.96 98.33 263.0 71.94 49.86 1.852& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 20.23 72.82 230.4 65.54 36.77 1.666& 0.000 18
19 0.000 0.000 0.000 0.000 0.000 44.16 55.49 176.8 58.81 34.48 1.266& 0.000 19
20 0.000 0.000 0.000 0.000 0.000 42.93 46.20 143.3 55.70 43.36 0.886& 0.000 20
21 0.000 0.000 0.000 0.000 0.000 39.46 43.59 131.6 50.07 37.18 0.644& 0.000 21
22 0.000 0.000 0.000 0.000 0.000 35.22 106.9 172.0 44.17 30.14 0.615& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 26.16 211.6 162.6 39.38 26.06 0.381& 0.000 23
24 0.000 0.000 0.000 0.000 0.000 20.38 192.1 122.9 35.63 23.77 0.233& 0.000 24
25 0.000 0.000 0.000 0.000 0.000 17.01 188.4 103.5 32.57 21.36 0.182& 0.000 25
26 0.000 0.000 0.000 0.000 0.000 15.15 543.4 90.69 30.81 19.11 0.098& 0.000 26
27 0.000 0.000 0.000 0.000 0.000 16.16 363.0 81.87 29.32 17.04 0.065& 0.000 27
28 0.000 0.000 0.000 0.000 0.000 64.66 251.4 119.2 26.85 14.86 0.060& 0.000 28
29 0.000 0.000 0.000 0.000 50.95 189.3 692.6 " 25.14 13.54 0.052& 0.000 29
30 0.000 0.000 0.000 0.000 35.32 146.7 1429 " 24.96 12.25 0.023& 0.000 30
31 0.000 0.000 0.000 118.5 1134 " 11.32 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 22.87 & 139.3 510.5 " 139.3 32.73 3.605& 0.000&
Median 0.000 0.000 0.000 0.000 0.000 19.06 & 106.9 337.7 " 86.91 25.02 2.692& 0.000&
Maximum 0.000 0.000 0.000 0.000 0.000 67.55 & 543.4 1429 " 785.6 110.1 10.58 & 0.003&
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 24.60 81.87 " 24.96 11.32 0.023& 0.000&
Total 0.00 0.00 0.00 0.00 0.00 686.2 & 4320 15825 " 4178 1015 108.2 & 0.01&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 71.59 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 26131 &
Maximum Minimum
Daily 1429 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 70.75 26.68 291.7 11.91 6.388& 0.000 1
2 0.000 0.000 0.000& 0.000 0.000 0.000 65.68 23.94 315.2 11.09 7.379 0.000 2
3 0.000 0.000 0.000& 0.000 0.000 0.000 47.36 22.32 315.2 10.51 7.676 0.000 3
4 0.000 0.000 0.000& 0.000 0.000 0.000 118.6 24.75 279.5 10.04 7.221 0.000 4
5 0.000 0.000 0.000& 0.000 0.000 0.000 872.4 30.80 184.9 11.15 6.243 0.000 5
6 0.000 0.000 0.000& 0.000 0.000 0.000 649.7 53.09 127.4 14.58 5.198& 0.000 6
7 0.000 0.000 0.000& 0.000 0.000 0.000 295.4 85.75 93.42 13.38 3.997& 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.000 150.3 84.10 74.47 11.50 3.035& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 109.0 65.83 61.52 9.331 2.078& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.000 90.19 53.32 51.41 7.821 1.267& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 0.000 74.66 44.10 43.37 7.099 0.784& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 0.000 61.98 38.02 37.63 6.957 0.378& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 0.000 52.47 32.48 33.26 7.174 0.140& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 0.000 45.01 44.39 29.60 7.525 0.049& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 0.000 43.85 68.06 27.08 6.815 0.009& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 0.000 36.58 62.86 23.72 6.024 0.001& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 0.000 30.93 183.0 21.34 5.349& 0.000 0.000 17
18 0.000 0.000 0.000 0.000 0.000 2.596& 28.54 195.0 20.30 4.640& 0.000 0.000 18
19 0.000 0.000 0.000 0.000 0.000 3.070& 29.91 111.9 21.98 3.957& 0.000 0.000 19
20 0.000 0.000 0.000 0.000 0.000 2.898& 85.48 72.76 27.53 3.589& 0.000 0.000 20
21 0.000 0.000 0.000 0.000 0.000 2.553& 130.8 55.59 26.34 3.204& 0.000 0.000 21
22 0.000 0.000 0.000 0.000 0.000 3.121& 133.4 45.40 24.61 2.906& 0.000 0.000 22
23 0.000 0.000 0.000 0.000 0.000 117.4 116.2 87.54 21.46 2.564& 0.000 0.000 23
24 0.000 0.000 0.000 0.000 0.000 132.4 87.17 139.0 18.83 2.260& 0.000 0.000 24
25 0.000 0.000 0.000 0.000 0.000 68.51 67.36 91.55 16.48 2.077& 0.000 0.000 25
26 0.000 0.000 0.000 0.000 0.000 41.21 55.39 63.75 15.24 2.111& 0.000 0.000 26
27 0.000 0.000 0.000 0.000 0.000 181.7 49.42 48.44 14.40 1.779& 0.000 0.000 27
28 0.000 0.000 0.000 0.000 0.000 330.9 45.32 39.34 13.87 1.639& 0.000 0.000 28
29 0.000 0.000 0.000 0.000 202.4 39.26 35.40 13.11 1.677& 0.000 0.000 29
30 0.000 0.000 0.000 0.000 103.8 34.31 159.1 12.53 1.527& 0.000 0.000 30
31 0.000 0.000 0.000 30.78 301.4 1.860& 0.000 31
Mean 0.000 0.000 0.000& 0.000 0.000 39.75 & 120.9 77.08 75.24 6.260& 1.728& 0.000
Median 0.000 0.000 0.000& 0.000 0.000 0.000& 65.68 55.59 27.30 6.024& 0.005& 0.000
Maximum 0.000 0.000 0.000& 0.000 0.000 330.9 & 872.4 301.4 315.2 14.58 & 7.676& 0.000
Minimum 0.000 0.000 0.000& 0.000 0.000 0.000& 28.54 22.32 12.53 1.527& 0.000& 0.000
Total 0.000 0.000 0.000& 0.000 0.000 1193 &3748 2390 2257 194.1 & 51.84 & 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 26.94 & & ... Relative Uncertainty +/-30%
Ann. Median 0.000&
Annual Total 9834 &
Maximum Minimum
Daily 872.4 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 73.19 14.30 22.86 16.10 0.253& 0.021& 1
2 0.000 0.000 0.000 0.000 0.000 0.000 42.44 13.05 52.65 14.77 0.544& 0.002& 2
3 0.000 0.000 0.000 0.000 0.000 0.000 26.47 14.01 49.18 13.24 2.851& 0.000 3
4 0.000 0.000 0.000 0.000 0.000 0.000 19.36 52.89 37.28 12.07 3.076& 0.000 4
5 0.000 0.000 0.000 0.000 0.000 0.000 15.23 72.23 30.75 10.94 2.586& 0.000 5
6 0.000 0.000 0.000 0.000 0.000 0.000 12.92 48.30 26.89 9.863 1.756& 0.000 6
7 0.000 0.000 0.000 0.000 0.000 0.000 11.68 29.05 59.54 8.998 1.039& 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.000 11.68 21.63 90.33 8.962 0.600& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 13.06 21.86 60.36 9.033 1.719& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.000 12.86 299.4 40.37 8.878 18.47 & 0.000 10
11 0.000 0.000 0.000 0.000 0.000 0.000 11.53 430.3 32.81 9.088 28.70 0.000 11
12 0.000 0.000 0.000 0.000 0.000 0.000 10.45 312.4 27.83 8.522 17.97 0.000 12
13 0.000 0.000 0.000 0.000 0.000 0.000 9.954 131.9 23.49 7.502 12.68 0.000 13
14 0.000 0.000 0.000 0.000 0.000 0.000 21.78 80.24 20.23 6.384 18.99 0.000 14
15 0.000 0.000 0.000 0.000 0.000 0.000 48.84 67.04 18.13 5.589& 33.25 0.000 15
16 0.000 0.000 0.000 0.000 0.000 0.000 35.79 108.2 16.31 5.086& 42.72 0.000 16
17 0.000 0.000 0.000 0.000 0.000 0.000 69.39 234.8 14.59 4.505& 24.44 0.000 17
18 0.000 0.000 0.000 0.000 0.000 0.000 96.48 209.2 13.32 3.979& 16.68 0.000 18
19 0.000 0.000 0.000 0.000 0.000 0.000 62.08 135.4 13.82 3.413& 12.00 0.000 19
20 0.000 0.000 0.000 0.000 0.000 0.000 40.47 88.38 20.44 2.954& 9.300 0.000 20
21 0.000 0.000 0.000 0.000 0.000 0.000 29.69 64.88 24.20 2.445& 7.260 0.000 21
22 0.000 0.000 0.000 0.000 0.000 0.000 23.11 51.17 25.36 1.863& 5.575& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 0.000 19.31 43.51 22.23 1.449& 4.205& 0.000 23
24 0.000 0.000 0.000 0.000 0.000 0.000 17.85 38.01 19.37 0.998& 3.107& 0.000 24
25 0.000 0.000 0.000 0.000 0.000 0.000 16.22 33.29 15.81 0.689& 2.160& 0.000 25
26 0.000 0.000 0.000 0.000 0.000 0.000 14.63 29.16 13.35 0.324& 1.355& 0.000 26
27 0.000 0.000 0.000 0.000 0.000 0.000 14.02 25.91 12.98 0.202& 0.786& 0.000 27
28 0.000 0.000 0.000 0.000 0.000 0.000 15.50 23.85 15.81 0.108& 0.370& 0.000 28
29 0.000 0.000 0.000 0.000 0.000 107.5 & 19.04 22.22 18.29 0.061& 0.179& 0.000 29
30 0.000 0.000 0.000 0.000 123.4 17.98 20.36 17.58 0.011& 0.114& 0.000 30
31 0.000 0.000 0.000 16.51 18.95 0.000& 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 7.696& 27.40 88.90 28.54 5.743& 9.158& 0.001&
Median 0.000 0.000 0.000 0.000 0.000 0.000& 17.98 48.30 22.54 5.086& 3.091& 0.000&
Maximum 0.000 0.000 0.000 0.000 0.000 123.4 & 96.48 430.3 90.33 16.10 & 42.72 & 0.021&
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 9.954 13.05 12.98 0.000& 0.114& 0.000&
Total 0.000 0.000 0.000 0.000 0.000 230.9 & 849.5 2756 856.2 178.0 & 274.7 & 0.024&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 14.06 & & ... Relative Uncertainty +/-30%
Ann. Median 0.000&
Annual Total 5145 &
Maximum Minimum
Daily 430.3 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 42.12 1038 " 68.59 26.42 45.74 0.448& 1
2 0.000 0.000 0.000 0.000 0.000 0.000 30.77 1020 121.7 68.82 37.64 0.275& 2
3 0.000 0.000 0.000 0.000 0.000 0.000 21.73 721.5 163.3 99.15 29.85 0.146& 3
4 0.000 0.000 0.000 0.000 0.000 0.000 25.10 392.7 121.4 78.55 25.67 0.065& 4
5 0.000 0.000 0.000 0.000 0.000 0.000 148.1 277.2 86.72 62.24 22.65 0.022& 5
6 0.000 0.000 0.000 0.000 0.000 0.000 157.4 201.7 72.00 57.35 20.02 0.002& 6
7 0.000 0.000 0.000 0.000 0.000 0.000 357.8 159.1 59.88 47.06 17.91 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.000 441.4 148.0 49.72 38.06 15.82 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 297.7 218.6 43.68 32.14 25.69 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.000 473.6 623.4 44.36 26.97 33.33 0.000 10
11 0.000 0.000 0.000 0.000 0.000 0.000 429.6 818.4 47.95 24.26 21.96 0.000 11
12 0.000 0.000 0.000 0.000 0.000 3.122& 306.7 497.3 50.38 24.17 16.83 0.000 12
13 0.000 0.000 0.000 0.000 0.000 8.463 625.3 303.2 44.20 23.41 13.27 0.000 13
14 0.000 0.000 0.000 0.000 0.000 9.238 779.2 236.4 37.79 21.27 10.31 0.000 14
15 0.000 0.000 0.000 0.000 0.000 9.596 757.5 180.9 34.08 18.96 8.386 0.000 15
16 0.000 0.000 0.000 0.000 0.000 14.14 506.8 140.2 44.78 17.55 7.323 0.000 16
17 0.000 0.000 0.000 0.000 0.000 12.47 364.1 113.7 90.34 15.93 6.738 0.000 17
18 0.000 0.000 0.000 0.000 0.000 10.67 299.3 97.44 86.74 14.67 5.962 0.000 18
19 0.000 0.000 0.000 0.000 0.000 9.195 282.9 99.54 70.85 17.39 5.361& 0.000 19
20 0.000 0.000 0.000 0.000 0.000 11.73 242.7 307.6 61.44 117.9 4.787& 0.000 20
21 0.000 0.000 0.000 0.000 0.000 70.67 388.6 295.5 52.38 155.9 5.036& 0.000 21
22 0.000 0.000 0.000 0.000 0.000 66.14 321.7 187.1 42.44 107.1 5.489& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 38.89 212.6 143.5 34.45 64.76 7.134& 0.000 23
24 0.000 0.000 0.000 0.000 0.000 22.49 173.7 108.4 28.73 44.33 5.592& 0.000 24
25 0.000 0.000 0.000 0.000 0.000 16.79 149.0 85.25 25.34 35.32 4.187& 0.000 25
26 0.000 0.000 0.000 0.000 0.000 13.42 142.5 74.03 23.86 45.88 3.147& 0.000 26
27 0.000 0.000 0.000 0.000 0.000 11.74 473.8 72.74 23.81 207.5 2.177& 0.000 27
28 0.000 0.000 0.000 0.000 0.000 12.52 613.7 70.88 25.09 336.6 1.511& 0.000 28
29 0.000 0.000 0.000 0.000 24.17 499.6 66.69 25.07 168.6 1.072& 0.000 29
30 0.000 0.000 0.000 0.000 50.55 819.3 65.78 23.33 89.75 0.748& 0.000 30
31 0.000 0.000 0.000 897.5 66.60 60.37 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 13.87 & 363.9 284.9 " 56.82 69.30 13.71 & 0.031&
Median 0.000 0.000 0.000 0.000 0.000 9.417& 321.7 180.9 " 46.37 45.88 7.855& 0.000&
Maximum 0.000 0.000 0.000 0.000 0.000 70.67 & 897.5 1038 " 163.3 336.6 45.74 & 0.448&
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 21.73 65.78 " 23.33 14.67 0.748& 0.000&
Total 0.00 0.00 0.00 0.00 0.00 416.0 &11282 8831 " 1705 2148 411.4 & 0.96&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 67.93 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 24794 &
Maximum Minimum
Daily 1038 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 10.95 245.1 82.38 28.34 9.039 0.251& 1
2 0.000 0.000 0.000 0.000 0.000 0.000 10.46 584.6 72.51 25.07 8.062 0.149& 2
3 0.000 0.000 0.000 0.000 0.000 0.000 9.851 596.8 68.66 22.55 7.346 0.070& 3
4 0.000 0.000 0.000 0.000 0.000 0.000 9.428 1093 " 78.52 21.02 6.550 0.032& 4
5 0.000 0.000 0.000 0.000 0.000 0.000 9.376 1071 " 111.9 22.05 5.591& 0.008& 5
6 0.000 0.000 0.000 0.000 0.000 0.000 9.387 575.6 192.2 25.29 4.701& 0.002& 6
7 0.000 0.000 0.000 0.000 0.000 0.000 10.35 326.4 253.1 25.26 4.303& 0.000& 7
8 0.000 0.000 0.000 0.000 0.000 0.000 10.18 369.8 209.1 22.05 4.045& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 10.86 999.2 " 152.6 19.73 3.991& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.000 28.32 1331 " 124.4 18.57 4.395& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 0.000 47.01 918.9 " 101.3 18.21 4.087& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 5.728& 36.26 482.8 86.15 17.94 3.733& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 23.41 24.49 304.7 108.8 18.07 3.634& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 27.38 21.03 366.9 207.4 16.49 3.210& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 18.72 59.58 323.9 180.1 15.23 2.608& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 13.21 77.85 741.7 149.1 14.28 2.097& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 11.14 52.36 1333 " 130.4 13.78 1.758& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 109.0 62.24 1266 " 113.6 13.71 2.761& 0.000 18
19 0.000 0.000 0.000 0.000 0.000 160.7 67.92 860.3 108.5 13.46 3.650& 0.000 19
20 0.000 0.000 0.000 0.000 0.000 115.0 45.64 492.6 119.1 12.68 8.416 0.000 20
21 0.000 0.000 0.000 0.000 0.000 65.30 38.34 332.2 104.7 12.08 8.923 0.000 21
22 0.000 0.000 0.000 0.000 0.000 39.87 59.32 248.6 92.87 11.97 6.413& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 28.88 104.9 186.4 80.25 12.79 4.935& 0.000 23
24 0.000 0.000 0.000 0.000 0.000 26.45 328.9 147.6 70.32 17.15 3.991& 0.000 24
25 0.000 0.000 0.000 0.000 0.000 22.11 212.4 124.6 61.94 24.70 3.137& 0.000 25
26 0.000 0.000 0.000 0.000 0.000 18.86 111.8 109.3 54.91 20.93 2.577& 0.000 26
27 0.000 0.000 0.000 0.000 0.000 16.12 70.09 112.5 48.79 16.65 1.857& 0.000 27
28 0.000 0.000 0.000 0.000 0.000 14.07 51.42 158.7 43.93 14.05 1.241& 0.000 28
29 0.000 0.000 0.000 0.000 12.57 67.54 145.2 38.76 11.84 0.804& 0.000 29
30 0.000 0.000 0.000 0.000 11.69 202.8 115.1 32.95 10.38 0.449& 0.000 30
31 0.000 0.000 0.000 159.1 95.90 9.572 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 24.67 & 65.16 518.1 " 109.3 17.61 4.277& 0.016&
Median 0.000 0.000 0.000 0.000 0.000 12.89 & 47.01 366.9 " 103.0 17.15 3.991& 0.000&
Maximum 0.000 0.000 0.000 0.000 0.000 160.7 & 328.9 1333 " 253.1 28.34 9.039& 0.251&
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 9.376 95.90 " 32.95 9.572 0.449& 0.000&
Total 0.00 0.00 0.00 0.00 0.00 740.2 & 2020 16060 " 3279 545.9 128.3 & 0.51&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 62.40 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 22774 &
Maximum Minimum
Daily 1333 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 7.980 53.08 10.34 6.838 0.000 0.000 1
2 0.000 0.000 0.000 0.000 0.000 0.000 7.498 40.59 10.36 7.191 0.000 0.000 2
3 0.000 0.000 0.000 0.000 0.000 0.000 8.217 34.21 18.13 9.803 0.000 0.000 3
4 0.000 0.000 0.000 0.000 0.000 0.000 34.13 31.57 30.40 9.698 0.000 0.000 4
5 0.000 0.000 0.000 0.000 0.000 0.000 49.51 26.96 26.03 8.735 0.000 0.000 5
6 0.000 0.000 0.000 0.000 0.000 0.000 49.19 23.86 30.46 7.630 0.000 0.000 6
7 0.000 0.000 0.000 0.000 0.000 0.024& 33.86 22.10 31.16 6.304 0.000 0.000 7
8 0.000 0.000 0.000 0.000 0.000 8.630& 24.68 23.83 25.49 5.172& 0.000 0.000 8
9 0.000 0.000 0.000 0.000 0.000 6.129& 20.46 29.81 20.01 4.210& 0.000 0.000 9
10 0.000 0.000 0.000 0.000 0.000 6.391& 17.47 34.91 15.99 3.522& 0.000 0.000 10
11 0.000 0.000 0.000 0.000 0.000 4.630& 15.40 38.83 13.53 3.002& 0.000 0.000 11
12 0.000 0.000 0.000 0.000 0.000 5.466& 13.96 43.56 12.13 2.491& 0.000 0.000 12
13 0.000 0.000 0.000 0.000 0.000 4.166& 13.33 35.78 17.60 2.089& 0.000 0.000 13
14 0.000 0.000 0.000 0.000 0.000 3.048& 15.15 28.66 127.6 1.632& 0.000 0.000 14
15 0.000 0.000 0.000 0.000 0.000 2.756& 16.98 25.32 119.0 1.147& 0.000 0.000 15
16 0.000 0.000 0.000 0.000 0.000 3.626& 15.66 30.48 72.14 0.678& 0.000 0.000 16
17 0.000 0.000 0.000 0.000 0.000 3.493& 13.86 48.53 54.61 0.413& 0.000 0.000 17
18 0.000 0.000 0.000 0.000 0.000 3.017& 12.33 39.60 41.09 0.219& 0.000 0.000 18
19 0.000 0.000 0.000 0.000 0.000 3.215& 29.89 29.89 31.13 0.134& 0.000 0.000 19
20 0.000 0.000 0.000 0.000 0.000 6.890& 73.17 25.59 24.69 0.090& 0.000 0.000 20
21 0.000 0.000 0.000 0.000 0.000 9.396& 59.22 23.16 20.97 0.060& 0.000 0.000 21
22 0.000 0.000 0.000 0.000 0.000 16.12 51.60 21.47 18.64 0.044& 0.000 0.000 22
23 0.000 0.000 0.000 0.000 0.000 17.60 35.13 19.60 16.57 0.022& 0.000 0.000 23
24 0.000 0.000 0.000 0.000 0.000 23.93 26.66 18.19 14.51 0.009& 0.000 0.000 24
25 0.000 0.000 0.000 0.000 0.000 39.60 21.51 17.08 13.01 0.001& 0.000 0.000 25
26 0.000 0.000 0.000 0.000 0.000 34.57 86.26 15.91 11.45 0.000 0.000 0.000 26
27 0.000 0.000 0.000 0.000 0.000 21.45 238.2 14.59 9.546 0.000 0.000 0.000 27
28 0.000 0.000 0.000 0.000 0.000 15.25 153.4 13.36 8.509 0.000 0.000 0.000 28
29 0.000 0.000 0.000 0.000 11.52 116.2 12.58 7.915 0.000 0.000 0.000 29
30 0.000 0.000 0.000 0.000 9.270 114.2 11.56 7.147 0.000 0.000 0.000 30
31 0.000 0.000 0.000 75.73 10.75 0.000 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 8.673& 46.80 27.27 28.67 2.617& 0.000 0.000
Median 0.000 0.000 0.000 0.000 0.000 5.048& 26.66 25.59 18.39 0.678& 0.000 0.000
Maximum 0.000 0.000 0.000 0.000 0.000 39.60 & 238.2 53.08 127.6 9.803& 0.000 0.000
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 7.498 10.75 7.147 0.000& 0.000 0.000
Total 0.000 0.000 0.000 0.000 0.000 260.2 &1451 845.4 860.2 81.14 & 0.000 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 9.583& & ... Relative Uncertainty +/-30%
Ann. Median 0.000&
Annual Total 3498 &
Maximum Minimum
Daily 238.2 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 8.343 169.1 90.59 17.95 1.504& 0.000 1
2 0.000 0.000 0.000 0.000 0.000 0.000 6.629 121.1 78.36 19.46 1.244& 0.000 2
3 0.000 0.000 0.000 0.000 0.000 0.000 5.026& 71.58 68.14 72.38 1.075& 0.000 3
4 0.000 0.000 0.000 0.000 0.000 0.000 4.479& 48.11 61.88 121.1 0.797& 0.000 4
5 0.000 0.000 0.000 0.000 0.000 0.000 4.096& 35.81 140.2 102.1 0.722& 0.000 5
6 0.000 0.000 0.000 0.000 0.000 0.000 3.710& 28.84 302.9 71.15 0.683& 0.000 6
7 0.000 0.000 0.000 0.000 0.000 0.000 4.309& 327.7 256.9 48.32 0.556& 0.000 7
8 0.000 0.000 0.000 0.000 0.000 0.000 5.896& 447.6 159.2 34.28 0.645& 0.000 8
9 0.000 0.000 0.000 0.000 0.000 0.000 12.01 142.2 105.7 25.89 0.543& 0.000 9
10 0.000 0.000 0.000 0.000 0.000 0.570& 22.01 82.65 79.44 20.57 0.382& 0.000 10
11 0.000 0.000 0.000 0.000 0.000 13.45 48.10 68.86 62.32 16.92 0.273& 0.000 11
12 0.000 0.000 0.000 0.000 0.000 8.041 25.65 75.98 49.11 14.12 0.225& 0.000 12
13 0.000 0.000 0.000 0.000 0.000 5.470& 18.07 69.85 39.62 12.05 0.199& 0.000 13
14 0.000 0.000 0.000 0.000 0.000 4.147& 13.63 141.0 31.85 10.68 0.120& 0.000 14
15 0.000 0.000 0.000 0.000 0.000 2.957& 14.53 292.4 25.94 9.710 0.057& 0.000 15
16 0.000 0.000 0.000 0.000 0.000 1.992& 11.95 164.1 22.27 10.29 0.017& 0.000 16
17 0.000 0.000 0.000 0.000 0.000 1.323& 9.594 118.0 19.78 23.36 0.002& 0.000 17
18 0.000 0.000 0.000 0.000 0.000 0.841& 145.1 364.6 17.78 19.93 0.000 0.000 18
19 0.000 0.000 0.000 0.000 0.000 0.554& 184.0 321.0 15.94 14.57 0.000 0.000 19
20 0.000 0.000 0.000 0.000 0.000 0.313& 114.0 209.8 14.54 12.22 0.001& 0.000 20
21 0.000 0.000 0.000 0.000 0.000 0.172& 68.93 168.0 13.44 11.86 0.003& 0.000 21
22 0.000 0.000 0.000 0.000 0.000 0.238& 43.90 163.5 12.62 12.16 0.000& 0.000 22
23 0.000 0.000 0.000 0.000 0.000 1.342& 79.65 209.9 11.99 11.16 0.000 0.000 23
24 0.000 0.000 0.000 0.000 0.000 2.852& 127.5 318.4 11.33 9.694 0.000 0.000 24
25 0.000 0.000 0.000 0.000 0.000 5.062& 119.2 406.1 10.31 8.308 0.000 0.000 25
26 0.000 0.000 0.000 0.000 0.000 5.677 168.2 258.5 9.599 6.870 0.000 0.000 26
27 0.000 0.000 0.000 0.000 0.000 5.954 154.8 152.2 12.96 5.531& 0.000 0.000 27
28 0.000 0.000 0.000 0.000 0.000 7.779 90.95 120.4 31.20 4.445& 0.000 0.000 28
29 0.000 0.000 0.000 0.000 0.000 12.85 118.7 109.2 30.39 3.623& 0.000 0.000 29
30 0.000 0.000 0.000 0.000 11.21 90.27 108.7 22.58 2.802& 0.000 0.000 30
31 0.000 0.000 0.000 64.42 105.6 2.018& 0.000 31
Mean 0.000 0.000 0.000 0.000 0.000 3.093& 57.67 & 174.9 60.29 24.37 & 0.302& 0.000
Median 0.000 0.000 0.000 0.000 0.000 1.082& 25.65 & 142.2 30.79 12.22 & 0.037& 0.000
Maximum 0.000 0.000 0.000 0.000 0.000 13.45 & 184.0 & 447.6 302.9 121.1 & 1.504& 0.000
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 3.710& 28.84 9.599 2.018& 0.000& 0.000
Total 0.000 0.000 0.000 0.000 0.000 92.79 &1788 &5421 1809 755.5 & 9.047& 0.000
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 26.98 & & ... Relative Uncertainty +/-30%
Ann. Median 0.000&
Annual Total 9875 &
Maximum Minimum
Daily 447.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/11/2025
Site 616189 Ellen Brook - Almeria Pde Upper Swan 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 0.000 0.000 0.000 2.027& 76.02 173.6 30.49 9.309 [ ] 1
2 0.000 0.000 0.000 0.000 0.000 0.000 1.644& 78.52 137.1 26.88 9.185 [ ] 2
3 0.000 0.000 0.000 0.000 0.000 0.000 1.564& 282.2 113.8 24.65 8.335 [ ] 3
4 0.000 0.000 0.000 0.000 0.000 0.000 5.865& 461.1 96.86 23.77 7.246 [ ] 4
5 0.000 0.000 0.000 0.000 0.000 0.000 6.779 380.0 104.1 33.10 6.963 [ ] 5
6 0.000 0.000 0.000 0.000 0.000 0.000 6.463 264.8 646.2 51.84 7.301 [ ] 6
7 0.000 0.000 0.000 0.000 0.000 0.000 23.83 170.4 1202 " 45.00 6.271 [ ] 7
8 0.000 0.000 0.000 0.000 0.000 0.000 37.43 117.2 1209 " 34.63 5.560& [ ] 8
9 0.000 0.000 0.000 0.000 0.000 0.000 33.73 624.6 " 850.7 29.40 4.776& [ ] 9
10 0.000 0.000 0.000 0.000 0.000 0.000 24.94 1863 " 398.0 25.65 3.693& [ ] 10
11 0.000 0.000 0.000 0.000 0.000 0.000 18.03 1213 " 264.5 22.75 2.619& [ ] 11
12 0.000 0.000 0.000 0.000 0.000 0.000 16.82 626.8 199.5 20.73 [ ] [ ] 12
13 0.000 0.000 0.000 0.000 0.000 0.000 30.66 336.8 153.7 19.06 [ ] [ ] 13
14 0.000 0.000 0.000 0.000 0.000 0.000 36.26 363.2 146.0 17.73 [ ] [ ] 14
15 0.000 0.000 0.000 0.000 0.000 0.000 44.01 338.0 174.6 16.60 [ ] [ ] 15
16 0.000 0.000 0.000 0.000 0.000 0.000 30.37 217.1 155.3 15.28 [ ] [ ] 16
17 0.000 0.000 0.000 0.000 0.000 0.000 25.86 151.1 125.8 14.09 [ ] [ ] 17
18 0.000 0.000 0.000 0.000 0.000 0.000 21.41 118.7 117.0 13.06 [ ] [ ] 18
19 0.000 0.000 0.000 0.000 0.000 0.000 20.55 113.9 115.4 12.37 [ ] [ ] 19
20 0.000 0.000 0.000 0.000 0.000 0.000 22.03 338.8 98.12 15.44 [ ] [ ] 20
21 0.000 0.000 0.000 0.000 0.000 0.000 73.33 476.5 84.46 37.17 [ ] [ ] 21
22 0.000 0.000 0.000 0.000 0.000 3.243& 78.20 335.2 71.85 45.99 [ ] [ ] 22
23 0.000 0.000 0.000 0.000 0.000 31.92 58.99 196.7 59.51 30.16 [ ] [ ] 23
24 0.000 0.000 0.000 0.000 0.000 26.32 106.0 206.6 49.96 22.77 [ ] [ ] 24
25 0.000 0.000 0.000 0.000 0.000 18.62 109.3 720.5 42.97 20.92 [ ] [ ] 25
26 0.000 0.000 0.000 0.000 0.000 12.13 74.73 1227 " 37.72 20.68 [ ] [ ] 26
27 0.000 0.000 0.000 0.000 0.000 7.595 66.13 1058 " 33.57 17.92 [ ] [ ] 27
28 0.000 0.000 0.000 0.000 0.000 5.085& 502.7 840.3 31.56 14.53 [ ] [ ] 28
29 0.000 0.000 0.000 0.000 3.488& 430.9 527.6 32.26 12.11 [ ] [ ] 29
30 0.000 0.000 0.000 0.000 2.664& 256.1 318.5 32.37 10.99 [ ] [ ] 30
31 0.000 0.000 0.000 117.3 226.4 10.11 [ ] 31
Mean 0.000 0.000 0.000 0.000 0.000 3.702& 73.68 & 460.3 " 231.9 " 23.74 6.478& [ ]
Median 0.000 0.000 0.000 0.000 0.000 0.000& 30.66 & 336.8 " 116.2 " 20.92 6.963& [ ]
Maximum 0.000 0.000 0.000 0.000 0.000 31.92 & 502.7 &1863 "1209 " 51.84 9.309& [ ]
Minimum 0.000 0.000 0.000 0.000 0.000 0.000& 1.564& 76.02 " 31.56 " 10.11 2.619& [ ]
Total 0.00 0.00 0.00 0.00 0.00 111.1 & 2284 &14268 " 6957 " 735.9 71.26& [ ]
Missing Days 0 0 0 0 0 0 0 0 0 0 19 31
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 77.55 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 24428 & [ ... Not Available
Missing Days 50
Maximum Minimum
Daily 1863 & 0.000&