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Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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 [ ] [ ] [ ] [ ] [ ] 0.000& 3.937" 73.42 " 49.97 " 20.73 " 3.957" 0.149& 1
2 [ ] [ ] [ ] [ ] [ ] 0.000& 3.800" 62.67 " 39.32 " 17.89 " 3.594" 0.136& 2
3 [ ] [ ] [ ] [ ] [ ] 0.000& 4.772" 48.99 " 33.96 " 15.81 " 3.256# 0.106& 3
4 [ ] [ ] [ ] [ ] [ ] 0.000& 5.648" 38.96 " 30.31 " 14.04 " 3.135# 0.096& 4
5 [ ] [ ] [ ] [ ] [ ] 0.000& 5.927" 32.99 " 30.60 " 12.55 " 2.987# 0.032& 5
6 [ ] [ ] [ ] [ ] [ ] 0.000& 5.053" 30.15 " 29.50 " 11.39 " 2.979# 0.001& 6
7 [ ] [ ] [ ] [ ] [ ] 0.000& 4.536" 27.36 " 26.93 " 10.41 " 2.990# 0.000& 7
8 [ ] [ ] [ ] [ ] [ ] 0.000& 4.259" 27.40 " 24.68 " 10.58 " 2.805# 0.000& 8
9 [ ] [ ] [ ] [ ] [ ] 0.000& 3.674" 26.16 " 24.34 " 16.96 " 2.616# 0.000& 9
10 [ ] [ ] [ ] [ ] [ ] 0.000& 3.519" 22.52 " 22.05 " 17.50 " 2.494# 0.000& 10
11 [ ] [ ] [ ] [ ] [ ] 0.000& 3.409" 21.03 " 20.14 " 15.32 " 2.306# 0.000& 11
12 [ ] [ ] [ ] [ ] [ ] 0.182& 3.283" 19.85 " 25.47 " 13.53 " 2.055# 0.000& 12
13 [ ] [ ] [ ] [ ] [ ] 1.877$ 4.039# 18.11 " 39.59 " 12.17 " 1.790$ 0.000& 13
14 [ ] [ ] [ ] [ ] [ ] 1.257& 21.42 " 16.98 " 72.75 " 11.08 " 1.561$ 0.000& 14
15 [ ] [ ] [ ] [ ] [ ] 1.236& 23.00 " 16.18 " 58.20 " 9.649" 1.319& 0.000& 15
16 [ ] [ ] [ ] [ ] [ ] 2.158$ 18.57 " 16.37 " 41.51 " 8.739" 1.170& 0.000& 16
17 [ ] [ ] [ ] [ ] [ ] 13.90 # 18.74 " 15.24 " 34.89 " 8.079" 0.973& 0.000& 17
18 [ ] [ ] [ ] [ ] [ ] 8.373" 92.57 " 13.08 " 88.28 " 7.326" 0.842& 0.000& 18
19 [ ] [ ] [ ] [ ] [ ] 6.889" 99.71 " 12.56 " 146.9 " 6.792" 0.708& 0.000& 19
20 [ ] [ ] [ ] [ ] [ ] 5.922" 415.7 # 11.75 " 101.9 " 6.355" 0.551& 0.000& 20
21 [ ] [ ] [ ] [ ] [ ] 7.036" 450.6 # 10.81 " 74.03 " 5.841" 0.495& 0.000& 21
22 [ ] [ ] [ ] [ ] [ ] 7.350" 232.0 # 10.26 " 63.23 " 6.123" 0.471& 0.000& 22
23 [ ] [ ] [ ] [ ] [ ] 6.258" 195.9 " 9.984" 51.03 " 9.922" 0.368& 0.000& 23
24 [ ] [ ] [ ] [ ] [ ] 6.542" 135.6 " 10.71 " 42.20 " 11.30 " 0.456& 0.000& 24
25 [ ] [ ] [ ] [ ] [ ] 7.999" 104.8 " 12.96 " 37.73 " 8.980" 0.414& 0.000& 25
26 [ ] [ ] [ ] [ ] 0.000& 5.941" 77.24 " 17.74 " 33.80 " 7.853" 0.349& 0.000& 26
27 [ ] [ ] [ ] [ ] 0.000& 4.986" 60.96 " 61.98 " 32.18 " 7.029" 0.330& 0.000& 27
28 [ ] [ ] [ ] [ ] 0.000& 4.419" 48.55 " 189.4 " 29.72 " 5.893" 0.315& 0.000& 28
29 [ ] [ ] [ ] 0.000& 4.087" 40.04 " 122.0 " 26.49 " 5.204" 0.327& 0.000& 29
30 [ ] [ ] [ ] 0.000& 4.014" 46.51 " 85.19 " 23.92 " 4.697" 0.252& 0.000& 30
31 [ ] [ ] 0.000& 115.7 " 66.63 " 4.308" 0.000& 31
Mean [ ] [ ] [ ] [ ] 0.000& 3.347& 72.69 # 37.08 " 45.19 " 10.45 " 1.596& 0.017&
Median [ ] [ ] [ ] [ ] 0.000& 2.017& 21.42 # 21.03 " 34.42 " 9.922" 1.245& 0.000&
Maximum [ ] [ ] [ ] [ ] 0.000& 13.90 & 450.6 # 189.4 " 146.9 " 20.73 " 3.957& 0.149&
Minimum [ ] [ ] [ ] [ ] 0.000& 0.000& 3.283# 9.984" 20.14 " 4.308" 0.252& 0.000&
Total [ ] [ ] [ ] [ ] 0.000& 100.4 &2254 #1149 "1356 " 324.1 " 47.87 & 0.519&
Missing Days 31 28 31 30 25 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 23.78 & " ... Relative Uncertainty +/-10%
Ann. Median 6.449& # ... Relative Uncertainty +/-15%
Annual Total 5231 & $ ... Relative Uncertainty +/-20%
Missing Days 145 & ... Relative Uncertainty +/-30%
[ ... Not Available
Maximum Minimum
Daily 450.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 16.03 " 147.2 " 191.8 " 99.16 " 13.22 " 2.416# 0.217& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 16.95 " 212.4 # 168.8 " 323.5 # 11.93 " 2.079# 0.107& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 29.91 " 184.7 " 156.6 " 464.4 # 12.34 " 2.067# 0.002& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 19.60 " 151.7 " 134.1 " 287.5 # 22.15 " 2.000# 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 21.79 " 122.7 " 120.3 " 176.5 " 20.30 " 1.883$ 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 57.45 " 136.8 " 106.7 " 135.0 " 15.28 " 1.706$ 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 43.21 " 122.6 " 98.70 " 113.6 " 13.28 " 1.335& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 66.71 " 103.2 " 157.7 # 100.8 " 19.28 " 1.254& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 110.4 " 96.46 " 384.7 # 88.68 " 19.97 " 1.061& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 143.6 " 151.3 " 332.3 # 77.59 " 15.70 " 1.005& 0.002& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 142.7 # 129.4 " 181.8 " 70.43 " 13.19 " 0.858& 0.003& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 414.1 # 106.3 " 140.7 " 66.01 " 10.94 " 0.815& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 293.6 # 86.21 " 118.1 " 59.74 " 9.628" 0.760& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 193.0 # 73.98 " 101.4 " 53.75 " 8.695" 0.618& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 135.7 " 222.7 # 107.6 " 47.57 " 8.285" 0.607& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 97.32 " 267.6 # 257.2 # 43.36 " 7.273" 0.619& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 2.008& 76.68 " 216.1 # 205.3 " 38.04 " 6.666" 0.618& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 3.798$ 65.11 " 155.7 " 142.5 " 33.49 " 6.330" 0.618& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 1.378& 50.23 " 133.2 " 113.3 " 31.12 " 5.896" 0.981& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.731& 98.30 " 169.8 " 98.76 " 29.37 " 5.408" 1.050& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.513& 81.46 " 140.8 " 96.44 " 26.03 " 4.607" 0.989& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.569& 76.28 " 254.5 # 95.47 " 23.73 " 4.112" 0.807& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 14.86 & 60.04 " 242.0 # 85.60 " 22.37 " 3.814" 0.524& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 43.87 " 47.61 " 155.7 " 181.0 # 21.69 " 3.794" 0.466& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 22.02 " 90.79 # 118.2 " 287.2 # 21.06 " 3.404" 0.384& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 18.74 " 692.9 # 126.7 # 385.9 # 19.57 " 3.283" 0.286& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 16.12 " 562.5 # 875.7 # 265.1 # 18.57 " 3.451" 0.417& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 29.58 " 284.3 # 836.9 # 175.6 " 17.15 " 3.454" 0.453& 0.000& 28
29 0.000& 0.000& 0.000& 32.07 " 255.7 # 440.6 # 140.7 " 15.94 " 3.394# 0.392& 0.000& 29
30 0.000& 0.000& 0.000& 21.82 " 178.7 " 324.0 # 121.6 " 14.84 " 2.548# 0.298& 0.000& 30
31 0.000& 0.000& 20.50 " 242.5 # 111.6 " 2.530# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 7.373& 147.4 # 217.7 # 169.8 # 84.68 # 9.166# 0.979& 0.011&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 86.12 # 151.7 # 140.7 # 45.46 # 7.273# 0.811& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 43.87 & 692.9 # 875.7 # 385.9 # 464.4 # 22.15 # 2.416& 0.217&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 16.03 # 73.98 # 85.60 # 14.84 # 2.530# 0.286& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 228.6 &4423 #6748 #5265 #2540 # 284.2 # 29.37 & 0.332&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 53.47 & " ... Relative Uncertainty +/-10%
Ann. Median 0.731& # ... Relative Uncertainty +/-15%
Annual Total 19518 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 875.7 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 149.9 " 316.6 # 52.86 " 51.28 " 7.857" 1.023& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 106.5 " 221.5 # 50.97 " 45.58 " 7.404" 0.755& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 68.54 " 165.0 " 50.63 " 40.10 " 6.959" 0.602& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 47.88 " 125.8 " 47.99 " 38.53 " 6.505" 0.574& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 36.80 " 104.0 " 43.13 " 80.47 " 5.905" 0.469& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 32.10 " 116.5 " 35.60 " 73.41 " 5.609" 0.444& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 46.40 " 201.6 # 32.05 " 55.75 " 5.253" 0.509& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 43.29 " 229.3 # 29.85 " 46.97 " 4.996" 0.467& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 35.79 " 172.3 " 30.82 " 40.21 " 4.570" 0.386& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 32.38 " 132.5 " 113.5 " 34.14 " 4.235" 0.315& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.61 " 130.6 " 229.0 # 30.45 " 4.077" 0.262& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.43 " 108.0 " 189.1 " 26.78 " 3.928" 0.238& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 55.69 & 21.01 " 91.88 " 164.9 " 23.28 " 3.762" 0.141& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 75.77 " 19.25 " 77.03 " 127.8 " 25.08 " 3.610" 0.110& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 42.11 " 39.05 " 66.22 " 97.29 " 41.62 " 3.404# 0.083& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 27.29 " 46.00 " 60.16 " 82.28 " 32.11 " 3.217# 0.066& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 19.36 " 44.82 " 92.51 " 68.65 " 28.17 " 2.981# 0.003& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 18.02 " 40.52 " 102.8 " 98.22 " 24.12 " 2.990# 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 16.51 " 34.90 " 102.6 " 111.6 " 21.31 " 2.990# 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 11.69 " 28.52 " 75.65 " 92.62 " 20.40 " 3.013# 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 9.725" 24.68 " 65.10 " 76.01 " 21.97 " 2.811# 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 9.057" 22.23 " 59.69 " 105.2 " 18.99 " 2.770# 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 8.425" 24.69 " 56.99 " 144.9 " 16.76 " 2.462# 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 11.23 " 49.99 " 54.70 " 128.9 " 14.96 " 2.462# 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 23.07 " 41.12 " 53.17 " 99.13 " 13.71 " 2.494# 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 36.39 " 51.83 " 54.09 " 75.30 " 12.37 " 2.276# 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 37.09 " 138.9 " 111.4 " 67.33 " 11.01 " 2.134# 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 31.32 " 142.6 " 108.2 " 79.07 " 10.42 " 1.766& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 40.87 " 349.0 # 97.43 " 68.65 " 10.04 " 1.456$ 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 130.0 " 555.3 # 72.00 " 60.08 " 9.320" 1.311& 0.000& 30
31 0.000& 0.000& 0.000& 455.8 # 59.43 " 8.656" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 20.12 & 89.70 # 112.4 # 88.45 # 29.93 " 3.840& 0.208&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 10.48 & 41.12 # 102.6 # 77.54 # 25.08 " 3.310& 0.066&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 130.0 & 555.3 # 316.6 # 229.0 # 80.47 " 7.857& 1.023&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.25 # 53.17 # 29.85 # 8.656" 1.311& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 603.6 &2781 #3485 #2654 # 928.0 " 115.2 & 6.446&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 28.89 & " ... Relative Uncertainty +/-10%
Ann. Median 0.189& # ... Relative Uncertainty +/-15%
Annual Total 10572 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 555.3 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.62 " 38.84 " 7.480" 4.714" 0.234& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.11 " 33.49 " 7.446" 4.032" 0.167& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.06 " 28.05 " 7.347" 3.401# 0.220& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.04 " 23.10 " 6.855" 3.123# 0.186& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.72 " 30.09 " 6.281" 2.959# 0.068& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.94 " 25.36 " 5.994" 2.635# 0.042& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.671" 21.20 " 5.510" 2.407# 0.133& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.676" 19.38 " 5.273" 2.279# 0.155& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.177" 17.62 " 5.071" 1.974$ 0.113& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.08 " 17.46 " 4.858" 1.796$ 0.058& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.79 " 22.23 " 4.722" 1.828$ 0.004& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.51 " 18.33 " 4.879" 1.828$ 0.002& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.35 " 16.15 " 4.818" 1.746$ 0.001& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 7.083& 9.542" 14.70 " 4.377" 1.552$ 0.000& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 9.658" 8.836" 13.29 " 4.046" 1.464$ 0.000& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 16.99 " 8.424" 12.24 " 3.738" 1.304& 0.000& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 12.02 " 11.46 " 11.19 " 3.436" 1.122& 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 8.597" 20.09 " 10.51 " 3.119# 0.970& 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 6.828" 15.62 " 9.888" 3.044# 0.850& 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 5.995" 13.64 " 9.436" 2.976# 0.658& 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 5.193" 11.50 " 9.093" 2.891# 0.496& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 4.531" 10.19 " 9.119" 2.891# 0.523& 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 3.961" 9.374" 8.679" 2.875# 0.523& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 3.455" 8.734" 8.537" 2.816# 0.523& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 3.368" 8.110" 10.29 " 2.816# 0.548& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 3.332# 9.820" 9.864" 2.816# 0.567& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 3.494# 92.35 " 8.992" 2.948# 0.482& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 48.10 " 51.76 " 8.091" 5.682" 0.459& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 37.84 " 35.77 " 7.727" 5.905" 0.388& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 26.60 " 26.84 " 7.626" 5.389" 0.300& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 21.42 " 7.557" 0.298& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 6.902& 17.55 " 15.75 " 4.610# 1.540& 0.046& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 3.412& 11.51 " 12.24 " 4.770# 1.304& 0.000& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 48.10 & 92.35 " 38.84 " 7.480# 4.714& 0.234& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.110" 7.557" 2.816# 0.298& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 207.1 & 544.2 " 488.1 " 138.3 # 47.75 & 1.382& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3.909& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1427 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 92.35 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 117.0 " 108.3 " 24.07 " 17.76 " 4.264" 0.189& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 1.316& 113.6 " 80.91 " 23.09 " 17.95 " 4.044" 0.119& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 3.932# 107.3 " 70.33 " 23.40 " 71.36 " 3.991" 0.067& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 2.213# 88.07 " 58.41 " 21.40 " 113.2 " 4.858" 0.022& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 3.701# 78.41 " 49.27 " 20.28 " 96.24 " 5.195" 0.003& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 7.717" 81.62 " 43.30 " 20.24 " 83.09 " 4.848" 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 5.748" 75.71 " 37.58 " 47.02 " 63.92 " 4.168" 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 5.133" 59.96 " 38.98 " 56.90 " 50.03 " 3.808" 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 3.252# 50.81 " 36.80 " 37.35 " 40.06 " 3.438# 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 2.680# 43.43 " 35.24 " 30.33 " 33.89 " 3.095# 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 24.10 # 37.21 " 31.86 " 27.10 " 29.06 " 2.943# 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 27.14 " 33.11 " 28.95 " 24.19 " 25.76 " 2.633# 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 15.76 " 30.26 " 26.61 " 22.25 " 22.66 " 2.353# 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 22.39 " 28.25 " 22.97 " 20.68 " 20.13 " 2.143# 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 15.60 " 26.32 " 21.33 " 18.77 " 18.87 " 1.924$ 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 12.08 " 24.51 " 20.21 " 17.53 " 17.25 " 1.705$ 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 50.31 " 22.97 " 19.87 " 16.21 " 15.27 " 1.485$ 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 119.5 " 21.25 " 43.73 " 15.21 " 13.29 " 1.287$ 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 71.17 " 19.38 " 51.71 " 14.73 " 11.73 " 1.168& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 64.77 " 18.08 " 51.96 " 16.65 " 10.88 " 1.030& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 49.05 " 16.99 " 39.99 " 23.49 " 10.03 " 0.790& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 106.2 # 17.42 " 32.33 " 27.85 " 9.139" 0.529& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 437.8 # 84.72 " 28.83 " 21.73 " 8.263" 0.355& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 469.8 # 134.2 " 32.71 " 27.08 " 7.532" 0.228& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 353.8 # 94.96 " 65.26 " 37.21 " 6.719" 0.198& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 199.6 # 83.28 " 52.04 " 32.85 " 6.077" 0.126& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 221.8 # 104.4 " 41.82 " 26.90 " 5.679" 0.106& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 210.5 # 86.23 " 35.56 " 23.49 " 5.875" 0.094& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 222.5 # 70.01 " 30.79 " 21.07 " 5.650" 0.094& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 155.4 " 81.72 " 27.53 " 19.05 " 5.122" 0.093& 0.000& 30
31 0.000& 0.000& 0.000& 99.24 " 25.88 " 4.710" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 96.16 & 62.92 " 41.65 " 25.27 " 27.33 " 2.100& 0.013&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 25.62 & 70.01 " 36.80 " 23.24 " 17.25 " 1.814& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 469.8 & 134.2 " 108.3 " 56.90 " 113.2 " 5.195& 0.189&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.99 " 19.87 " 14.73 " 4.710" 0.093& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000&2885 &1950 "1291 " 758.1 " 847.2 " 62.99 & 0.400&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 21.36 & " ... Relative Uncertainty +/-10%
Ann. Median 0.094& # ... Relative Uncertainty +/-15%
Annual Total 7795 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 469.8 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 0.000& 0.000& 0.000& 1.840$ 10.97 " 8.592" 160.2 " 8.718" 1.799$ 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.009# 10.65 " 7.961" 101.2 " 8.080" 1.610$ 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.089# 11.10 " 7.583" 72.89 " 7.703" 1.481$ 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.918" 11.67 " 7.398" 60.34 " 7.230" 1.317$ 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.343" 10.15 " 8.256" 123.3 " 7.104" 1.185& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.456" 8.799" 10.39 " 89.59 " 6.541" 0.854& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.282# 7.899" 9.302" 110.3 " 6.016" 0.649& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.941# 7.711" 12.20 " 121.0 " 5.556" 0.602& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.680# 7.020" 17.20 " 79.36 " 5.206" 0.479& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.506# 6.805" 12.46 " 64.83 " 5.018" 0.439& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.352# 6.385" 10.53 " 53.04 " 4.924" 0.439& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.345# 6.139" 9.787" 43.02 " 4.887" 0.439& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.437# 6.102" 11.07 " 38.44 " 4.660" 0.437& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.726# 6.353" 12.14 " 46.43 " 4.101" 0.343& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.476" 21.04 " 10.04 " 39.36 " 3.751" 0.302& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.887" 45.05 " 9.136" 32.83 " 3.630" 0.325& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.814" 38.70 " 12.42 " 29.35 " 3.441" 0.278& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.814" 32.49 " 19.84 " 25.70 " 3.191# 0.215& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.772" 25.72 " 48.98 " 24.72 " 2.997# 0.174& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.720" 20.32 " 44.69 " 30.15 " 2.950# 0.050& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.607" 17.10 " 42.40 " 29.66 " 2.891# 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.393" 14.23 " 36.38 " 23.76 " 2.785# 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.938& 3.346# 11.83 " 28.99 " 20.03 " 2.742# 0.012& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 1.471$ 6.785# 10.20 " 95.46 " 17.81 " 2.694# 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 1.667$ 10.72 " 9.395" 119.3 " 15.89 " 2.672# 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 1.720$ 7.505" 14.54 " 79.12 " 14.30 " 3.677# 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 1.762$ 6.754" 17.63 " 59.32 " 12.69 " 3.121# 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 1.645$ 6.457" 13.48 " 44.66 " 11.69 " 2.688# 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 1.557$ 7.516" 10.91 " 48.27 " 10.93 " 2.289# 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 1.556$ 12.36 " 9.772" 318.2 # 10.05 " 2.079# 0.000& 30
31 0.000& 0.000& 0.000& 13.48 " 9.105" 9.395" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.411& 4.817$ 14.17 " 38.74 # 49.11 " 4.445# 0.433&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.772$ 10.91 " 12.44 # 32.83 " 3.714# 0.302&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 1.762& 13.48 $ 45.05 " 318.2 # 160.2 " 8.718# 1.799&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.840$ 6.102" 7.398# 9.395" 2.079# 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 12.32 & 149.3 $ 439.2 "1162 #1522 " 133.3 # 13.43 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 9.403& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 3432 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 318.2 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.31 " 44.82 " 6.156" 1.890# 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.72 " 37.98 " 6.982" 1.873$ 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 38.64 " 33.64 " 7.207" 1.758$ 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 35.34 " 40.17 " 6.592" 1.766$ 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.54 " 37.02 " 5.938" 1.774$ 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.19 " 31.48 " 5.622" 1.719$ 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.97 " 27.80 " 5.706" 1.682$ 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.32 " 24.61 " 9.175" 1.609$ 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.97 " 22.03 " 13.53 " 1.531$ 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.40 " 20.21 " 9.713" 1.186& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.208& 10.87 " 20.17 " 7.657" 1.024& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.043" 9.794" 20.84 " 6.618" 0.860& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.500" 9.376" 17.78 " 6.028" 0.611& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.969" 8.497" 16.46 " 5.115" 0.485& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.664# 7.928" 15.79 " 4.481" 0.439& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.942# 16.77 " 15.94 " 4.067" 0.405& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.561# 109.3 " 19.32 " 3.603" 0.410& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.450# 152.8 " 15.87 " 3.370" 0.353& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.809# 148.5 " 14.03 " 3.203# 0.256& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.801# 124.2 " 12.60 " 3.013# 0.113& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.742# 113.5 " 11.21 " 2.821# 0.048& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.845# 87.79 " 10.24 " 2.762# 0.057& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.81 " 96.25 " 9.539" 2.493# 0.064& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.46 " 75.79 " 8.789" 2.275# 0.066& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.19 " 100.3 " 8.227" 2.075# 0.007& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.83 " 90.94 " 7.540" 1.919$ 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.19 " 117.2 " 7.046" 1.877$ 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.65 " 121.4 " 6.658" 1.979# 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.03 " 91.57 " 6.274" 2.200# 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 12.26 " 70.01 " 6.051" 2.314# 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 17.39 " 56.06 " 2.066# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.656& 59.30 " 19.01 " 4.792$ 0.733& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.845& 38.64 " 16.20 " 4.067$ 0.425& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.81 & 152.8 " 44.82 " 13.53 $ 1.890& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.928" 6.051" 1.877$ 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 175.4 &1838 " 570.2 " 148.6 $ 21.99 & 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 7.526& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 2754 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 152.8 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 0.000& 16.68 " 82.79 " 43.21 " 63.38 " 10.25 " 0.437& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.23 " 70.01 " 45.74 " 54.34 " 9.810" 0.368& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.93 " 62.49 " 44.35 " 46.65 " 9.245" 0.304& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.86 " 107.5 " 37.03 " 41.55 " 8.800" 0.354& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.494" 223.5 # 32.84 " 36.34 " 9.443" 0.531& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.27 " 398.1 # 29.82 " 32.57 " 8.739" 0.476& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.73 " 284.7 # 39.83 " 29.25 " 7.791" 0.260& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 40.28 " 181.4 " 137.1 " 26.34 " 7.176" 0.431& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 59.69 " 127.8 " 126.7 " 23.81 " 6.678" 0.257& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 41.29 " 166.1 # 253.8 # 22.17 " 6.366" 0.290& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29.59 " 220.9 # 507.6 # 20.37 " 6.178" 0.328& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 9.451& 24.67 " 174.8 " 321.1 # 18.52 " 5.649" 0.385& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 17.73 " 21.57 " 194.7 " 184.1 " 17.11 " 5.269" 0.359& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 6.979" 46.41 " 166.1 " 128.8 " 18.34 " 4.782" 0.213& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 4.687" 71.20 " 402.5 # 140.4 " 25.49 " 4.375" 0.194& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 4.406" 45.15 " 291.1 # 117.6 " 22.15 " 3.910" 0.111& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 4.025" 36.75 " 190.7 " 107.1 " 24.61 " 3.575" 0.046& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 3.559" 288.8 # 135.4 " 97.36 " 22.88 " 3.239# 0.006& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 4.057" 261.2 # 131.0 " 77.59 " 18.95 " 2.767# 0.005& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 8.421" 139.2 " 177.0 " 68.12 " 16.55 " 2.312# 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 9.683" 145.8 " 131.2 " 60.45 " 14.90 " 1.991# 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 19.01 " 114.6 " 110.0 " 58.13 " 14.97 " 1.808$ 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 31.56 " 81.56 " 92.57 " 56.38 " 15.78 " 1.756$ 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 20.55 " 240.5 # 79.47 " 122.7 " 22.26 " 1.402$ 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 14.64 " 337.4 # 68.31 " 247.7 # 21.62 " 1.220& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 11.60 " 217.4 # 59.80 " 192.5 " 17.45 " 0.880& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 9.947" 156.4 " 53.15 " 139.7 " 14.68 " 0.562& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 9.050" 176.4 " 46.98 " 102.0 " 12.96 " 0.588& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 12.26 " 139.7 " 42.48 " 90.24 " 12.41 " 0.580& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 15.17 " 120.1 " 43.47 " 76.19 " 11.76 " 0.453& 0.000& 30
31 0.000& 0.000& 0.000& 100.8 " 51.79 " 10.83 " 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 7.226& 98.16 # 147.4 # 122.9 # 24.23 " 4.587& 0.173&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 4.547& 59.69 # 131.0 # 99.68 # 21.62 " 4.143& 0.111&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 31.56 & 337.4 # 402.5 # 507.6 # 63.38 " 10.25 & 0.531&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.494# 42.48 # 29.82 # 10.83 " 0.453& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 216.8 &3043 #4568 #3686 # 751.0 " 137.6 & 5.353&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 33.99 & " ... Relative Uncertainty +/-10%
Ann. Median 0.290& # ... Relative Uncertainty +/-15%
Annual Total 12408 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 507.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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 0.000& 0.000& 0.000& 0.000& 0.000& 77.30 " 56.93 "2077 ! 107.4 " 15.89 " 9.739" 1.429$ 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 77.59 " 234.1 #1382 ! 107.2 " 14.62 " 8.792" 1.411$ 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 50.64 " 446.8 # 768.9 # 95.38 " 13.80 " 8.108" 1.234& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 63.37 " 336.1 #1061 ! 80.49 " 12.95 " 7.370" 1.049& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 63.14 " 192.3 #1620 ! 70.98 " 12.15 " 6.817" 0.842& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 46.98 " 122.9 " 940.1 # 63.21 " 12.57 " 6.378" 0.771& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 35.49 " 92.35 " 623.0 # 55.81 " 25.27 " 6.004" 0.692& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 27.51 " 74.59 " 471.4 # 48.95 " 24.03 " 5.629" 0.617& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 23.09 " 115.2 " 490.9 # 42.86 " 26.80 " 5.347" 0.556& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 19.53 " 95.87 " 472.1 # 39.33 " 21.32 " 4.957" 0.499& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 16.88 " 81.21 " 367.5 # 40.76 " 17.50 " 4.627" 0.484& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 14.75 " 70.95 " 449.1 # 75.42 " 14.87 " 4.158" 0.397& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 12.74 " 162.5 " 644.7 # 65.04 " 12.88 " 3.824" 0.384& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 11.38 " 204.9 " 410.1 # 52.99 " 11.97 " 6.004" 0.312& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 10.32 " 151.4 " 296.6 # 43.28 " 11.87 " 5.623" 0.304& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 9.434" 220.3 # 252.0 # 36.11 " 11.04 " 4.098" 0.254& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 8.739" 793.4 # 239.9 # 32.99 " 9.997" 3.586" 0.255& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 8.296" 594.9 # 271.8 # 43.54 " 9.285" 3.911" 0.306& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 7.910" 472.6 # 436.2 # 38.30 " 8.358" 4.287" 0.318& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 7.665" 385.7 # 391.2 # 33.58 " 10.12 " 4.313" 0.294& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 7.667" 287.7 # 274.0 # 29.38 " 18.20 " 4.036" 0.399& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 8.291" 268.5 # 363.2 # 26.78 " 16.16 " 3.542" 0.342& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 9.306" 257.8 # 317.5 # 24.70 " 20.77 " 3.237# 0.232& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 10.62 " 329.0 # 234.5 # 22.64 " 21.15 " 2.959# 0.248& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 17.44 " 630.8 # 186.5 " 20.87 " 15.51 " 2.607# 0.281& 25
26 0.000& 0.000& 0.000& 0.000& 9.660& 48.52 " 373.6 # 156.8 " 19.81 " 13.07 " 2.403# 0.279& 26
27 0.000& 0.000& 0.000& 0.000& 27.02 " 140.4 " 247.2 # 135.2 " 18.96 " 11.25 " 2.168# 0.220& 27
28 0.000& 0.000& 0.000& 0.000& 36.28 " 136.2 " 195.3 " 122.3 " 18.03 " 9.726" 1.946# 0.189& 28
29 0.000& 0.000& 0.000& 48.92 " 89.03 " 641.9 # 111.9 " 18.19 " 9.080" 1.717$ 0.115& 29
30 0.000& 0.000& 0.000& 37.71 " 56.28 " 743.9 # 100.5 " 17.41 " 12.09 " 1.546$ 0.041& 30
31 0.000& 0.000& 31.48 " 689.9 # 91.46 " 11.83 " 0.005& 31
Mean 0.000& 0.000& 0.000& 0.000& 6.163& 37.22 " 308.7 # 508.4 ! 46.34 " 14.71 " 4.658$ 0.476&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 18.49 " 247.2 # 367.5 ! 40.04 " 12.95 " 4.223$ 0.318&
Maximum 0.000& 0.000& 0.000& 0.000& 48.92 & 140.4 " 793.4 #2077 ! 107.4 " 26.80 " 9.739$ 1.429&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 7.665" 56.93 # 91.46 ! 17.41 " 8.358" 1.546$ 0.005&
Total 0.00& 0.00& 0.00& 0.00& 191.1 & 1116 " 9571 #15760 ! 1390 " 456.1 " 139.7 $ 14.76&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 78.46 ! ! ... Not reviewed / Quality not known
Ann. Median 2.959! " ... Relative Uncertainty +/-10%
Annual Total 28639 ! # ... Relative Uncertainty +/-15%
$ ... Relative Uncertainty +/-20%
Maximum Minimum & ... Relative Uncertainty +/-30%
Daily 2077 ! 0.000!
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs Year 1975
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.15 " 212.2 # 65.02 " 24.93 " 6.652" 1.092& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.450" 145.9 " 67.37 " 22.32 " 6.152" 1.021& 2
3 0.002& 0.000& 0.000& 0.000& 0.000& 0.000& 9.790" 119.5 " 63.19 " 20.46 " 5.626" 0.831& 3
4 0.004& 0.000& 0.000& 0.000& 0.000& 0.000& 8.141" 96.44 " 47.95 " 19.66 " 5.285" 0.749& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.500" 79.79 " 39.81 " 27.93 " 5.021" 0.604& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.020" 68.57 " 34.35 " 47.60 " 4.753" 0.501& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.628" 69.03 " 31.88 " 31.31 " 4.255" 0.395& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.066" 84.61 " 31.59 " 26.17 " 4.152" 0.328& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.930" 69.99 " 28.73 " 23.80 " 3.748" 0.349& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.940" 64.27 " 26.29 " 26.92 " 3.467" 0.182& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.87 " 52.72 " 24.65 " 22.45 " 3.254# 0.182& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 70.01 " 44.70 " 22.56 " 20.03 " 3.086# 0.186& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 38.48 " 38.51 " 21.37 " 18.28 " 2.934# 0.211& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28.12 " 34.09 " 20.13 " 17.02 " 2.803# 0.191& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.59 " 30.94 " 19.39 " 20.34 " 2.658# 0.200& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.165& 18.27 " 35.73 " 28.53 " 19.72 " 2.993# 0.158& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.354& 42.79 " 96.99 " 42.91 " 17.79 " 3.732" 0.117& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.370& 40.73 " 196.1 # 35.72 " 24.08 " 3.724" 0.088& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.389& 36.40 " 324.1 # 41.23 " 22.48 " 3.340# 0.023& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 1.678& 53.42 " 214.8 # 129.4 " 18.52 " 3.153# 0.004& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 3.076# 59.26 " 152.8 " 126.1 " 16.62 " 2.863# 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 2.758# 53.27 " 109.2 " 91.04 " 14.32 " 2.575# 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 3.118# 43.08 " 115.8 # 65.21 " 12.47 " 2.298# 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 7.748" 38.38 " 321.2 # 50.47 " 11.44 " 2.127# 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 9.775" 31.59 " 206.0 " 40.41 " 10.36 " 1.928$ 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 37.14 " 27.41 " 151.8 " 45.26 " 9.632" 1.765$ 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 29.44 " 186.8 # 110.8 " 42.99 " 9.199" 1.625$ 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 20.09 " 280.4 # 90.12 " 34.82 " 8.553" 1.468$ 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 16.17 " 563.2 # 75.32 " 31.05 " 8.114" 1.312& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 13.06 " 703.8 # 66.00 " 27.89 " 7.572" 1.212& 0.000& 30
31 0.000& 0.000& 0.000& 376.4 # 59.06 " 7.162" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 4.845& 90.97 # 114.1 # 45.91 " 18.94 " 3.332& 0.239&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.083& 31.59 # 90.12 # 37.76 " 19.66 " 3.120& 0.158&
Maximum 0.004& 0.000& 0.000& 0.000& 0.000& 37.14 & 703.8 # 324.1 # 129.4 " 47.60 " 6.652& 1.092&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.628# 30.94 # 19.39 " 7.162" 1.212& 0.000&
Total 0.006& 0.000& 0.000& 0.000& 0.000& 145.3 &2820 #3537 #1377 " 587.2 " 99.96 & 7.413&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 23.49 & " ... Relative Uncertainty +/-10%
Ann. Median 0.165& # ... Relative Uncertainty +/-15%
Annual Total 8574 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 703.8 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs Year 1976
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.603# 3.333" 15.25 " 7.176" 1.653$ 0.324& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.439" 3.233# 13.38 " 6.611" 1.478$ 0.288& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.058" 3.363# 17.65 " 7.635" 1.298$ 0.215& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.233" 4.414" 20.81 " 11.85 " 1.117& 0.210& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.637" 5.743" 16.91 " 9.586" 0.987& 0.146& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.979" 4.830" 14.74 " 8.448" 0.861& 0.062& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.014" 12.97 " 12.60 " 7.766" 0.820& 0.056& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.633" 15.99 " 10.59 " 6.794" 0.836& 0.080& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.311# 11.96 " 9.421" 6.094" 1.037& 0.076& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.771# 9.724" 8.750" 5.359" 1.390$ 0.107& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.460# 8.090" 8.094" 4.939" 2.320$ 0.073& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.249# 7.088" 7.547" 4.588" 5.332" 0.056& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.201# 7.866" 7.258" 4.209" 5.046" 0.023& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.085# 58.12 " 7.005" 3.977" 4.206" 0.002& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.899$ 176.0 " 6.760" 3.744" 3.260# 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.765$ 98.92 " 6.447" 3.423# 2.571# 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.725$ 55.54 " 6.183" 3.088# 2.095# 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.683$ 37.35 " 7.733" 3.160# 1.814$ 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.612$ 29.98 " 9.626" 3.738# 1.546$ 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.819$ 24.62 " 7.835" 3.713" 1.339& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.819# 21.42 " 6.843" 3.963" 1.097& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.709" 17.79 " 6.440" 4.066" 0.945& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.326# 15.31 " 5.958" 4.084" 0.753& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.357# 13.47 " 5.650" 3.675" 0.655& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.022& 5.696" 12.03 " 5.337" 3.166# 0.632& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.053& 4.325" 10.97 " 5.263" 2.631# 0.564& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.143& 3.676" 10.33 " 6.813" 2.333# 0.499& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.170& 3.433" 12.70 " 9.236" 2.115# 0.419& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.655& 3.337" 23.51 " 7.934" 1.951$ 0.345& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 2.038$ 3.367" 19.24 " 7.108" 1.851$ 0.337& 0.000& 30
31 0.000& 0.000& 0.000& 3.410" 17.91 " 1.808$ 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.103& 3.311$ 24.31 # 9.373" 4.759$ 1.575& 0.055&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.367$ 12.97 # 7.784" 3.977$ 1.107& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 2.038& 5.696$ 176.0 # 20.81 " 11.85 $ 5.332& 0.324&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.612$ 3.233# 5.263" 1.808$ 0.337& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 3.081& 102.6 $ 753.7 # 281.2 " 147.5 $ 47.25 & 1.719&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3.653& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1337 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 176.0 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs Year 1977
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.691" 4.070" 5.250" 0.715& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.192& 7.079" 5.285" 4.924" 0.542& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.841# 6.571" 5.404" 4.574" 0.388& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.202# 6.100" 6.033" 3.532# 0.338& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.302# 5.676" 5.530" 2.757# 0.394& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.250# 5.381" 4.638" 2.182# 0.361& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.538" 5.896" 4.063" 1.965$ 0.130& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.887" 7.506" 3.815" 1.662$ 0.002& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.36 " 6.958" 3.872" 1.336$ 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 74.22 " 6.083" 3.910" 1.211& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 91.33 " 5.481" 3.859" 1.095& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 67.95 " 4.996" 4.856" 0.909& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 71.88 " 4.650" 4.845" 0.790& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 46.72 " 4.255" 3.779" 0.808& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 32.10 " 4.176" 3.353" 0.677& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.96 " 4.205" 3.146# 0.611& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.96 " 5.065" 2.788# 0.619& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.94 " 5.470" 2.444# 0.576& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 33.60 " 5.036" 2.258# 0.373& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 32.95 " 4.217" 2.074# 0.325& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.65 " 3.882" 1.883$ 0.258& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.86 " 3.891" 1.605$ 0.249& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.17 " 3.846" 1.553$ 0.393& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.83 " 3.996" 1.408$ 0.499& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.74 " 3.870" 1.291& 0.446& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.60 " 3.600" 1.046& 0.324& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.80 " 3.401# 1.078& 0.188& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.99 " 3.211# 1.173& 0.251& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.03 " 3.098# 1.164& 0.480& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.260" 3.069# 1.785$ 0.511& 0.000& 30
31 0.000& 0.000& 0.000& 0.000& 8.337" 3.221# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.76 & 4.945# 3.136& 1.326& 0.093&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.74 & 4.823# 3.221& 0.648& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 91.33 & 7.691# 6.033& 5.250& 0.715&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.069# 1.046& 0.188& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 736.4 & 148.4 # 97.23 & 39.78 & 2.869&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2.807& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1025 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 91.33 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 10.62 " 57.15 " 7.455" 25.52 " 1.186& 0.348& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.532" 48.75 " 6.850" 48.72 " 1.284& 0.239& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.013" 42.68 " 6.195" 30.08 " 1.341$ 0.260& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.302" 39.27 " 5.874" 23.88 " 1.287& 0.203& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.972" 52.45 " 5.632" 19.97 " 1.193& 0.166& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.883" 45.89 " 5.346" 16.61 " 1.124& 0.066& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.267" 37.77 " 5.313" 13.82 " 1.026& 0.020& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.184" 32.87 " 5.220" 11.64 " 1.014& 0.021& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.248" 28.92 " 6.771" 9.924" 0.963& 0.022& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.620" 25.72 " 15.77 " 8.715" 0.728& 0.011& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.229# 23.38 " 27.76 " 7.747" 0.653& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.119# 21.69 " 23.82 " 6.667" 0.620& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.789" 20.62 " 18.92 " 5.990" 0.598& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.12 " 19.18 " 15.70 " 5.443" 0.531& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 280.8 # 17.87 " 20.67 " 5.160" 0.425& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 367.0 # 17.11 " 26.50 " 4.831" 0.401& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 323.4 # 16.14 " 19.45 " 4.304" 0.402& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 299.7 # 16.33 " 17.32 " 3.925" 0.320& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 447.9 # 14.98 " 18.49 " 3.500# 0.251& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 762.9 # 13.63 " 22.40 " 3.209# 0.269& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&1142 # 12.59 " 17.81 " 2.973# 0.281& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 535.0 # 11.74 " 16.63 " 2.675# 0.313& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 301.1 # 11.00 " 19.96 " 2.435# 0.328& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 212.0 # 10.91 " 23.50 " 2.347# 0.508& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.803& 301.7 # 10.16 " 19.45 " 2.161# 0.501& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 2.552# 200.4 " 9.351" 15.55 " 2.116# 0.207& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 4.636# 149.8 " 8.870" 13.31 " 1.902$ 0.236& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 5.332" 113.7 " 8.592" 11.51 " 1.748$ 0.256& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 22.53 " 92.92 " 8.338" 10.24 " 1.713$ 0.256& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 17.60 " 77.09 " 8.286" 9.292" 1.508$ 0.264& 0.000& 30
31 0.000& 0.000& 0.000& 67.58 " 7.866" 1.299& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 1.782& 186.3 # 22.58 " 14.62 " 9.114& 0.625& 0.044&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 77.09 # 17.11 " 15.74 " 4.831& 0.504& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 22.53 &1142 # 57.15 " 27.76 " 48.72 & 1.341& 0.348&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.229# 7.866" 5.220" 1.299& 0.207& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 53.46 &5775 # 700.1 " 438.7 " 282.5 & 18.76 & 1.356&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 19.92 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 7270 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 1142 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs Year 1979
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.070# 6.317" 3.641" 0.654& 0.570& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.873# 5.856" 3.613" 0.614& 0.511& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.742# 5.518" 3.423" 0.616& 0.428& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.623# 5.177" 3.071# 0.590& 0.366& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.607# 4.991" 2.722# 0.651& 0.303& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.778# 4.722" 2.581# 0.679& 0.127& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.052# 4.494" 2.526# 0.700& 0.009& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.079& 3.267# 4.538" 2.403# 0.709& 0.004& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.042$ 3.170# 5.031" 2.409# 0.912& 0.001& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.400# 2.985# 5.134" 2.342# 1.442$ 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.531# 2.855# 5.066" 2.281# 1.317& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.181# 2.742# 4.754" 2.309# 1.433& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.404" 2.697# 4.852" 2.394# 1.796$ 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.234# 2.704# 4.737" 2.341# 2.907# 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.949# 2.501# 4.551" 2.188# 2.646# 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.963" 2.581# 4.194" 2.093# 2.214# 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.289# 5.189# 3.854" 1.897$ 2.002# 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.770# 11.01 " 3.847" 1.782$ 1.789$ 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.768# 44.67 " 3.778" 1.668$ 1.663$ 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.131# 34.45 " 3.730" 1.817$ 1.522$ 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.822# 26.69 " 4.254" 1.825$ 1.306$ 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.635# 19.32 " 5.822" 1.826$ 1.151& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.489# 14.99 " 7.157" 1.813$ 0.976& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.361# 13.31 " 6.120" 1.755$ 0.770& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.289# 14.22 " 6.113" 1.737$ 0.611& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.269# 12.27 " 5.253" 1.554$ 0.503& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.347# 10.31 " 4.397" 1.303& 0.500& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.433# 9.853" 3.843" 1.030& 0.537& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 3.110# 8.714" 3.562" 0.880& 0.544& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 3.762" 7.590" 3.580" 0.823& 0.555& 0.000& 30
31 0.000& 0.000& 0.000& 3.373" 6.831" 0.793& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.182& 9.183# 4.841" 2.092& 1.144& 0.075&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.489& 3.267# 4.746" 2.093& 0.841& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.963& 44.67 # 7.157" 3.641& 2.907& 0.570&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.501# 3.562" 0.793& 0.500& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 67.63 & 284.7 # 145.2 " 64.84 & 34.31 & 2.318&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1.641& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 599.0 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 44.67 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.232& 20.15 " 26.04 " 7.328" 1.799$ 0.125& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.671$ 16.59 " 23.70 " 6.815" 1.817$ 0.073& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.888$ 13.76 " 21.42 " 6.409" 1.621$ 0.103& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.857$ 12.35 " 19.48 " 6.158" 1.516$ 0.127& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.794$ 13.10 " 16.88 " 5.670" 1.451$ 0.195& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.766$ 15.54 " 15.75 " 5.283" 1.344$ 0.153& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.728$ 12.58 " 15.92 " 4.929" 1.185& 0.135& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.781$ 10.61 " 16.66 " 4.368" 1.111& 0.084& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.913$ 15.40 " 14.57 " 3.974" 1.055& 0.079& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.910# 28.87 " 12.51 " 3.500" 0.921& 0.120& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.018# 20.74 " 11.11 " 3.223# 0.865& 0.071& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.51 " 18.52 " 9.887" 3.083# 0.797& 0.028& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.83 " 15.75 " 9.402" 3.034# 0.762& 0.017& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.81 " 12.94 " 11.81 " 2.873# 0.692& 0.003& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.42 " 11.04 " 12.31 " 2.922# 0.614& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 36.52 " 9.835" 10.53 " 4.028" 0.557& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.71 " 9.365" 10.80 " 5.581" 0.555& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.08 " 19.27 " 9.267" 4.794" 0.548& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.46 " 19.76 " 8.328" 3.681" 0.478& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.52 " 15.06 " 7.404" 3.253# 0.431& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.337" 27.42 " 7.054" 3.776# 0.435& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.115" 27.00 " 13.02 " 5.515" 0.383& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.499" 20.25 " 17.11 " 5.358" 0.373& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.439" 16.87 " 13.78 " 4.076" 0.352& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.034" 15.10 " 11.59 " 3.496" 0.396& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29.79 " 39.07 " 9.617" 3.070# 0.350& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 44.93 " 36.82 " 8.607" 2.751# 0.285& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29.86 " 34.74 " 7.721" 2.552# 0.262& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.80 " 30.47 " 7.656" 2.359# 0.270& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 20.43 " 40.67 " 8.035" 2.145# 0.268& 0.000& 30
31 0.000& 0.000& 0.000& 18.33 " 30.08 " 1.991# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.48 & 20.31 " 12.93 " 4.129# 0.783& 0.042&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.337& 16.87 " 11.70 " 3.776# 0.585& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 44.93 & 40.67 " 26.04 " 7.328# 1.817& 0.195&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.232& 9.365" 7.054" 1.991# 0.262& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 418.0 & 629.7 " 388.0 " 128.0 # 23.49 & 1.313&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4.340& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1588 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 44.93 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 10.08 " 129.9 " 398.0 # 46.53 " 21.45 " 4.488" 2.275# 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 12.94 " 93.99 " 311.5 # 41.70 " 36.05 " 4.326" 2.062# 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 12.20 " 72.32 " 323.1 # 37.75 " 23.97 " 4.448" 1.995# 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 7.441" 60.06 " 353.8 # 35.01 " 21.23 " 4.036" 1.912# 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 5.378" 49.49 " 311.0 # 35.72 " 18.23 " 3.628" 1.854$ 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 34.15 # 42.95 " 242.6 # 33.02 " 16.14 " 3.476" 1.729$ 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 167.7 # 38.56 " 355.2 # 31.60 " 14.88 " 3.414" 1.588$ 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 413.2 # 37.32 " 343.0 # 70.74 " 13.57 " 3.376" 1.384$ 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 342.6 # 32.96 " 234.6 # 72.87 " 12.24 " 3.142# 1.192& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 154.7 " 29.86 " 482.5 # 61.46 " 10.95 " 2.886# 1.119& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 81.59 " 28.11 " 809.3 # 44.85 " 9.877" 2.735# 0.961& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 146.4 " 26.10 " 485.8 # 35.71 " 9.172" 6.431# 0.856& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 102.2 " 24.08 " 306.9 # 30.60 " 8.293" 36.99 " 0.778& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 74.59 " 22.35 " 289.6 # 26.50 " 7.951" 86.28 " 0.800& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 50.99 " 22.36 " 591.0 # 23.48 " 7.456" 25.07 " 0.881& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 57.31 " 21.74 " 558.9 # 22.26 " 7.136" 13.83 " 0.721& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 42.93 " 26.74 " 416.7 # 26.73 " 6.896" 8.933" 0.571& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 37.38 " 52.16 " 296.5 # 26.23 " 6.573" 6.677" 0.463& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 32.31 " 61.02 " 294.3 # 24.14 " 6.290" 5.131" 0.477& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 31.64 " 56.27 " 281.6 # 31.18 " 5.751" 4.105" 0.395& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 30.65 " 54.20 " 220.5 # 34.01 " 5.540" 3.347# 0.260& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 24.25 " 333.1 # 171.8 " 27.39 " 5.252" 2.900# 0.028& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 22.03 " 667.8 # 143.2 " 24.14 " 4.847" 2.543# 0.049& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 23.13 " 412.9 # 124.4 " 21.41 " 4.495" 2.381# 0.052& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 32.11 " 297.2 # 111.9 " 19.43 " 4.354" 2.398# 0.177& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 37.21 " 227.3 # 96.49 " 18.25 " 6.237" 3.511# 0.210& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 195.8 # 306.6 # 83.33 " 16.86 " 11.18 " 3.136# 0.079& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 253.0 # 241.1 # 74.51 " 15.62 " 8.871" 2.889# 0.008& 28
29 0.000& 0.000& 0.000& 0.000& 212.8 " 164.4 " 67.09 " 14.72 " 7.186" 2.657# 0.001& 29
30 0.000& 0.000& 0.000& 48.29 & 169.2 " 539.7 # 59.41 " 15.26 " 6.187" 2.434# 0.002& 30
31 0.000& 0.000& 27.96 " 493.6 # 52.01 " 5.158" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 2.460& 93.93 # 150.5 # 286.8 # 32.17 " 10.76 " 8.720# 0.803&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 40.15 # 56.27 # 294.3 # 29.00 " 7.951" 3.494# 0.721&
Maximum 0.000& 0.000& 0.000& 0.000& 48.29 & 413.2 # 667.8 # 809.3 # 72.87 " 36.05 " 86.28 # 2.275&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 5.378# 21.74 # 52.01 # 14.72 " 4.354" 2.381# 0.000&
Total 0.000& 0.000& 0.000& 0.000& 76.25 &2818 #4666 #8891 # 965.2 " 333.4 " 261.6 # 24.88 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 49.41 & " ... Relative Uncertainty +/-10%
Ann. Median 2.434& # ... Relative Uncertainty +/-15%
Annual Total 18036 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 809.3 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.635# 13.10 " 10.72 " 8.988" 1.730$ 0.385& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.509# 42.12 " 10.05 " 8.243" 1.653$ 0.420& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.581# 29.56 " 9.581" 8.068" 1.598$ 0.333& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.659# 28.33 " 9.204" 8.556" 1.665$ 0.265& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.161# 22.28 " 8.295" 15.10 " 1.611$ 0.142& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.170" 17.92 " 7.235" 13.33 " 1.552$ 0.063& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.976" 43.72 " 6.856" 10.28 " 1.518$ 0.023& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.556" 78.55 " 6.642" 9.170" 1.526$ 0.001& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.043" 62.19 " 6.308" 7.527" 1.483$ 0.007& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.566" 41.89 " 6.124" 6.589" 1.602$ 0.038& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.049" 31.53 " 6.088" 5.937" 1.610$ 0.036& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.432# 25.90 " 5.708" 5.297" 1.549& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.990# 22.14 " 5.501" 5.071" 1.368& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.609# 19.62 " 5.825" 4.772" 1.219& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.819# 17.10 " 14.42 " 4.459" 1.038& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.518" 15.18 " 31.11 " 4.014" 0.876& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.25 " 13.32 " 29.41 " 3.671" 0.818& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.93 " 12.91 " 24.85 " 3.263# 0.813& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.292" 21.37 " 18.56 " 2.814# 0.708& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29.38 " 21.62 " 14.74 " 2.505# 0.749& 0.000& 20
21 0.096& 0.000& 0.000& 0.000& 0.000& 0.455& 49.17 " 20.69 " 14.48 " 2.326# 0.655& 0.000& 21
22 0.852& 0.000& 0.000& 0.000& 0.000& 1.432& 63.68 " 19.14 " 16.72 " 2.144# 0.671& 0.000& 22
23 0.195& 0.000& 0.000& 0.000& 0.000& 2.162# 44.14 " 23.22 " 18.89 " 2.144# 0.689& 0.000& 23
24 0.045& 0.000& 0.000& 0.000& 0.000& 2.333# 34.57 " 27.17 " 22.45 " 2.033# 0.748& 0.000& 24
25 0.046& 0.000& 0.000& 0.000& 0.000& 2.920# 29.07 " 29.29 " 22.72 " 2.130# 0.545& 0.000& 25
26 0.033& 0.000& 0.000& 0.000& 0.000& 3.540# 23.11 " 23.72 " 20.06 " 1.987# 0.597& 0.000& 26
27 0.027& 0.000& 0.000& 0.000& 0.000& 3.036# 21.92 " 19.37 " 16.68 " 1.936$ 0.675& 0.000& 27
28 0.009& 0.000& 0.000& 0.000& 0.000& 2.940# 20.78 " 16.20 " 13.90 " 1.873$ 0.672& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 3.143# 16.62 " 13.80 " 11.70 " 1.779$ 0.615& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 2.964# 14.61 " 12.40 " 10.14 " 1.792$ 0.438& 0.000& 30
31 0.000& 0.000& 0.000& 12.86 " 11.49 " 1.813$ 0.000& 31
Mean 0.042& 0.000& 0.000& 0.000& 0.000& 0.831& 14.63 # 25.70 " 13.50 " 5.149$ 1.100& 0.055&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.292# 21.62 " 11.21 " 4.014$ 0.957& 0.000&
Maximum 0.852& 0.000& 0.000& 0.000& 0.000& 3.540& 63.68 # 78.55 " 31.11 " 15.10 $ 1.730& 0.420&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.509# 11.49 " 5.501" 1.779$ 0.438& 0.000&
Total 1.304& 0.000& 0.000& 0.000& 0.000& 24.93 & 453.6 # 796.8 " 405.0 " 159.6 $ 32.99 & 1.711&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.140& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1876 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 78.55 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 117.6 " 92.08 " 218.5 # 27.08 " 2.584# 1.002& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 67.21 " 84.22 " 197.5 " 24.40 " 2.353# 0.914& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 43.84 " 75.22 " 227.3 # 22.21 " 2.204# 0.898& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.37 " 65.82 " 513.9 # 20.24 " 2.182# 0.948& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.32 " 117.0 " 438.0 # 18.52 " 2.174# 0.910& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.57 " 104.9 " 441.2 # 16.81 " 2.240# 0.804& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.16 " 81.86 " 563.1 # 15.28 " 2.778# 0.668& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 88.68 " 62.47 " 346.1 # 14.02 " 3.412# 0.699& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 153.8 " 50.35 " 220.2 # 12.80 " 2.942# 0.590& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 111.9 " 42.75 " 160.7 " 11.69 " 2.424# 0.445& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 62.58 " 37.50 " 131.8 " 10.73 " 2.338# 0.343& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 41.73 " 61.21 " 280.5 # 10.74 " 3.092# 0.335& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.37 " 72.66 " 425.5 # 13.24 " 5.722" 0.194& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 25.97 " 74.20 " 279.8 # 12.06 " 5.914" 0.213& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.29 " 58.78 " 325.2 # 10.10 " 4.901" 0.163& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.12 " 46.13 " 308.7 # 9.344" 5.143" 0.146& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.96 " 39.33 " 213.3 # 8.634" 10.29 " 0.204& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.46 " 38.36 " 159.0 " 7.891" 12.34 " 0.141& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.27 " 33.81 " 125.4 " 7.364" 10.88 " 0.044& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.04 " 32.96 " 104.7 " 6.894" 8.883" 0.013& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.80 " 31.45 " 89.10 " 6.217" 6.828" 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.51 " 28.21 " 74.75 " 5.579" 5.343" 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.719" 68.12 " 64.89 " 5.241" 4.076" 0.011& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 61.95 " 205.3 " 60.39 " 4.810" 3.144# 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 328.0 # 206.2 " 52.27 " 4.615" 2.568# 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 561.8 # 151.4 " 45.68 " 4.187" 2.207# 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 293.2 # 120.5 " 40.24 " 3.656" 1.912$ 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 47.39 & 149.3 " 124.7 " 35.89 " 3.385# 1.758$ 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 298.1 # 98.80 " 214.6 " 33.05 " 3.127# 1.472$ 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 261.9 # 122.1 " 189.1 " 30.06 " 2.931# 1.141& 0.079& 30
31 0.000& 0.000& 0.000& 107.9 " 146.9 " 2.737# 0.207& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 20.25 & 86.88 # 88.96 " 206.9 # 10.53 # 4.175& 0.322&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 41.73 # 72.66 " 179.1 # 9.344# 2.860& 0.194&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 298.1 & 561.8 # 214.6 " 563.1 # 27.08 # 12.34 & 1.002&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.719# 28.21 " 30.06 # 2.737# 1.141& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 607.4 &2693 #2758 "6207 # 326.5 # 125.2 & 9.971&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 34.87 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 12727 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 563.1 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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 0.076& 0.000& 0.000& 0.000& 0.000& 2.144# 5.208" 7.261" 10.42 " 9.048" 1.586$ 0.523& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 2.057# 4.856" 17.15 " 11.13 " 10.10 " 1.586$ 0.495& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 2.427# 5.314" 24.77 " 12.31 " 9.029" 1.601$ 0.430& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 2.413# 10.34 " 18.40 " 12.33 " 7.882" 1.504$ 0.380& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 3.016# 16.06 " 18.19 " 19.94 " 7.439" 1.546$ 0.362& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 5.584# 26.31 " 24.16 " 22.36 " 7.196" 1.724$ 0.344& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 6.003" 24.66 " 43.48 " 18.32 " 7.447" 1.904$ 0.310& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 4.154" 24.58 " 44.29 " 17.03 " 8.516" 3.377# 0.256& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 5.009" 19.92 " 46.38 " 23.47 " 8.134" 4.956" 0.270& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 4.577" 16.02 " 32.35 " 22.50 " 7.250" 5.462" 0.227& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 3.937" 13.50 " 27.16 " 19.79 " 6.993" 4.086" 0.214& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 3.608" 11.37 " 23.77 " 17.76 " 6.533" 3.225# 0.131& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 6.260" 9.883" 20.30 " 16.50 " 5.929" 2.615# 0.030& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 8.048" 9.081" 18.74 " 110.1 " 5.293" 2.123# 0.069& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 6.238" 9.052" 23.31 " 149.6 " 4.672" 1.806$ 0.073& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 5.779" 10.10 " 26.75 " 106.8 " 4.284" 1.668$ 0.072& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 5.736" 10.19 " 21.37 " 64.82 " 3.911" 1.721$ 0.056& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 5.051" 8.935" 20.96 " 46.40 " 3.444# 1.763$ 0.055& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 4.479" 8.893" 24.19 " 34.88 " 3.103# 1.774$ 0.065& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 4.157" 8.870" 22.91 " 28.25 " 2.782# 1.619$ 0.040& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 8.701" 8.420" 22.08 " 24.14 " 2.528# 1.339& 0.029& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 12.27 " 7.642" 24.16 " 21.29 " 2.342# 1.121& 0.009& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 9.285" 7.168" 22.15 " 18.63 " 2.284# 1.109& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 8.675" 7.021" 20.44 " 16.35 " 2.139# 1.154& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 8.450" 6.674" 17.79 " 14.43 " 2.057# 0.989& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 7.422" 7.319" 16.24 " 13.01 " 1.932# 0.839& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 6.577" 8.956" 14.78 " 11.77 " 1.874$ 0.715& 0.048& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 6.050" 8.511" 13.38 " 10.37 " 1.716$ 0.625& 0.189& 28
29 0.000& 0.000& 0.000& 0.000& 0.249& 5.695" 7.623" 12.45 " 9.365" 1.680$ 0.535& 0.048& 29
30 0.000& 0.000& 0.000& 2.009$ 5.551" 7.495" 11.71 " 8.745" 1.700$ 0.457& 0.009& 30
31 0.000& 0.000& 2.068# 7.312" 10.75 " 1.617$ 0.000& 31
Mean 0.002& 0.000& 0.000& 0.000& 0.140& 5.645# 10.88 " 22.32 " 30.43 " 4.866$ 1.884& 0.153&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 5.640# 8.935" 21.37 " 18.48 " 4.284$ 1.610& 0.069&
Maximum 0.076& 0.000& 0.000& 0.000& 2.068& 12.27 # 26.31 " 46.38 " 149.6 " 10.10 $ 5.462& 0.523&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 2.057# 4.856" 7.261" 8.745" 1.617$ 0.457& 0.000&
Total 0.076& 0.000& 0.000& 0.000& 4.326& 169.4 # 337.3 " 691.8 " 912.9 " 150.9 $ 56.53 & 4.732&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 6.360& " ... Relative Uncertainty +/-10%
Ann. Median 0.580& # ... Relative Uncertainty +/-15%
Annual Total 2328 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 149.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.345& 14.90 " 38.84 " 8.326" 1.684$ 0.241& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.966" 12.55 " 32.62 " 7.588" 1.675$ 0.250& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.641# 36.00 " 28.22 " 7.087" 1.811$ 0.213& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.250$ 38.42 " 24.29 " 6.619" 1.848$ 0.206& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.646$ 46.52 " 21.44 " 6.236" 1.761$ 0.109& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.283& 43.67 " 18.72 " 5.616" 1.536$ 0.027& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.086& 31.40 " 16.78 " 5.121" 1.398$ 0.003& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.975& 26.54 " 15.09 " 4.908" 1.384$ 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.007& 24.10 " 13.97 " 4.463" 1.334$ 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.120& 22.88 " 12.97 " 3.960" 1.336$ 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.240$ 18.67 " 11.79 " 3.618" 1.279& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.199& 16.92 " 10.73 " 3.545" 1.239& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.421& 15.76 " 9.856" 3.600" 1.061& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.17 " 13.39 " 9.350" 3.998" 0.894& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.032" 11.74 " 8.992" 3.859" 0.782& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.844" 10.50 " 8.602" 3.468# 0.608& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.746" 9.590" 8.917" 3.076# 0.481& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.247" 10.87 " 15.61 " 2.731# 0.361& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.061" 32.33 " 13.09 " 2.556# 0.359& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.86 " 55.25 " 10.08 " 2.344# 0.708& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.621" 43.95 " 10.90 " 2.246# 0.976& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.713" 34.24 " 23.52 " 2.093# 0.767& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.789" 29.12 " 19.45 " 1.964# 0.636& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.316" 47.59 " 14.57 " 1.925$ 0.560& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.048" 79.65 " 12.69 " 1.902# 0.448& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.040" 71.81 " 10.82 " 1.860$ 0.381& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 33.43 " 124.6 " 9.294" 1.884$ 0.245& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 37.82 " 84.34 " 8.480" 2.019# 0.225& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 26.66 " 63.36 " 8.445" 1.977# 0.197& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 21.76 " 47.96 " 9.175" 1.886$ 0.232& 0.000& 30
31 0.000& 0.000& 0.000& 16.93 " 47.90 " 1.834$ 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.298& 37.63 " 15.24 " 3.687$ 0.940& 0.034&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.789& 32.33 " 12.83 " 3.468$ 0.838& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 37.82 & 124.6 " 38.84 " 8.326$ 1.848& 0.250&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.345& 9.590" 8.445" 1.834$ 0.197& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 257.2 &1167 " 457.3 " 114.3 $ 28.21 & 1.050&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.547& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 2025 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 124.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.089& 65.44 " 244.1 # 43.93 " 9.336" 3.137# 0.425& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.148& 50.74 " 138.4 " 38.07 " 8.826" 2.918# 0.425& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.092& 64.57 " 86.50 " 34.89 " 8.607" 2.777# 0.469& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.142& 46.81 " 63.38 " 31.90 " 8.238" 2.746# 0.380& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.298& 41.09 " 50.07 " 28.59 " 8.097" 2.670# 0.289& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.371& 33.99 " 44.82 " 26.02 " 7.729" 2.602# 0.214& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.497& 28.15 " 42.31 " 23.86 " 7.261" 2.486# 0.210& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.559& 23.63 " 65.37 " 22.41 " 6.783" 2.491# 0.273& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.664& 20.83 " 103.2 " 20.81 " 6.329" 2.556# 0.258& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.752& 18.39 " 87.46 " 19.63 " 5.916" 2.531# 0.301& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.898& 16.17 " 79.59 " 20.06 " 5.553" 2.409# 0.364& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 1.061& 14.41 " 71.87 " 18.89 " 8.732" 2.199# 0.404& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 1.002& 15.59 " 60.30 " 16.71 " 19.25 " 2.078# 0.394& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 1.364& 47.68 " 51.86 " 16.68 " 16.73 " 1.972# 0.509& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 1.654$ 100.9 " 69.70 " 36.92 " 13.74 " 1.874$ 0.645& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 2.732$ 97.33 " 60.63 " 39.50 " 12.89 " 1.840$ 0.580& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 3.906# 60.10 " 63.80 " 35.06 " 15.26 " 1.773$ 0.569& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 3.408# 41.71 " 73.73 " 31.12 " 15.80 " 1.622$ 0.533& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 2.349# 33.26 " 67.37 " 27.01 " 12.17 " 1.552$ 0.434& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 1.905$ 28.25 " 78.44 " 24.12 " 10.25 " 1.389$ 0.448& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 1.646$ 28.83 " 75.62 " 23.09 " 8.700" 1.286$ 0.412& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 1.525$ 41.51 " 109.3 " 21.16 " 7.350" 1.102& 0.338& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 1.395$ 51.83 " 108.0 " 18.48 " 6.570" 0.939& 0.114& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 1.599$ 44.98 " 102.3 " 16.59 " 6.168" 0.730& 0.049& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 12.67 # 36.88 " 101.4 " 15.32 " 5.662" 0.601& 0.013& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 45.89 " 29.48 " 80.59 " 14.41 " 5.359" 0.507& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 87.09 " 25.16 " 69.44 " 12.84 " 4.791" 0.559& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 160.7 " 22.72 " 84.90 " 11.36 " 4.437" 0.562& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 189.1 # 21.06 " 67.20 " 10.53 " 4.097" 0.571& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 113.1 " 41.92 " 58.22 " 10.17 " 3.804" 0.487& 0.000& 30
31 0.000& 0.000& 0.000& 206.9 # 51.43 " 3.529" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 21.29 & 45.17 # 81.01 # 23.67 " 8.644" 1.766& 0.292&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 1.460& 36.88 # 71.87 # 21.78 " 7.729" 1.857& 0.338&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 189.1 & 206.9 # 244.1 # 43.93 " 19.25 " 3.137& 0.645&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.089& 14.41 # 42.31 # 10.17 " 3.529" 0.487& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 638.6 &1400 #2511 # 710.1 " 268.0 " 52.97 & 9.051&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 15.32 & " ... Relative Uncertainty +/-10%
Ann. Median 0.469& # ... Relative Uncertainty +/-15%
Annual Total 5590 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 244.1 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs Year 1987
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.417# 91.07 " 19.71 " 7.190" 1.957$ 0.451& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.258# 62.28 " 17.49 " 6.408" 1.921$ 0.520& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.593# 46.65 " 15.28 " 5.979" 1.882$ 0.417& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.653" 35.52 " 13.66 " 5.541" 1.751$ 0.400& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.117" 28.93 " 12.76 " 5.110" 1.793$ 0.370& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.709" 24.75 " 11.45 " 4.729" 1.777$ 0.460& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.137" 21.99 " 10.18 " 4.406" 1.802$ 0.489& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.92 " 19.19 " 9.435" 4.079" 1.575$ 0.376& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.78 " 16.72 " 8.836" 3.646" 1.251& 0.294& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.842" 15.17 " 8.388" 3.350# 1.163& 0.223& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.465" 13.91 " 7.792" 2.977# 1.074& 0.216& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.499" 13.40 " 7.139" 2.997# 0.959& 0.232& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.658" 16.87 " 6.544" 26.66 " 0.818& 0.075& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.932" 15.84 " 6.106" 17.72 " 0.876& 0.143& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.050" 13.08 " 5.833" 10.36 " 0.781& 0.071& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.477" 12.19 " 5.472" 8.025" 0.849& 0.019& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.261" 11.25 " 5.199" 6.604" 0.852& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.757" 10.21 " 5.064" 5.486" 0.801& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.137" 9.436" 5.811" 4.770" 0.755& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 1.802& 3.766" 10.73 " 6.655" 4.126" 0.594& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 3.248# 3.582" 34.97 " 6.039" 3.588" 0.689& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 3.114# 3.595" 26.61 " 5.547" 3.184# 0.672& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 3.097# 4.476" 22.33 " 8.384" 2.845# 0.601& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 2.995# 6.181" 19.62 " 10.36 " 2.668# 0.557& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 2.681# 5.591" 29.92 " 8.961" 2.516# 0.456& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 2.570# 4.852" 60.61 " 8.966" 2.461# 0.341& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 2.632# 4.823" 40.94 " 13.79 " 2.232# 0.367& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 2.639# 6.001" 39.23 " 11.31 " 2.065# 0.379& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 2.472# 170.6 # 30.47 " 8.785" 1.980# 0.468& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 2.270# 165.6 # 25.02 " 8.095" 1.955$ 0.356& 0.000& 30
31 0.000& 0.000& 0.000& 132.5 " 21.73 " 2.023# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.984& 20.62 # 27.12 " 9.302" 5.409$ 1.004& 0.153&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.591# 21.99 " 8.587" 4.079$ 0.834& 0.019&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 3.248& 170.6 # 91.07 " 19.71 " 26.66 $ 1.957& 0.520&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.258# 9.436" 5.064" 1.955$ 0.341& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 29.52 & 639.2 # 840.7 " 279.1 " 167.7 $ 30.12 & 4.757&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.455& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1991 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 170.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 15.36 " 48.70 " 60.37 " 63.76 " 6.704" 0.565& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 8.734& 13.20 " 41.13 " 50.16 " 54.71 " 8.149" 0.613& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 23.41 " 11.51 " 35.57 " 42.01 " 49.68 " 8.601" 1.253& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 13.97 " 10.21 " 31.90 " 35.60 " 80.50 " 7.111" 1.223& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 8.481" 9.741" 28.31 " 33.64 " 68.58 " 6.157" 0.901& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 5.936" 10.10 " 25.59 " 45.62 " 60.73 " 5.876" 0.720& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 5.000" 14.52 " 23.23 " 48.29 " 70.54 " 7.531" 0.536& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 9.212" 27.04 " 21.40 " 44.78 " 52.38 " 10.08 " 0.473& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 9.495" 22.74 " 19.98 " 40.43 " 40.98 " 7.883" 0.426& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 7.372" 19.71 " 20.36 " 37.47 " 34.54 " 6.344" 0.386& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 6.437" 17.68 " 20.67 " 32.96 " 30.47 " 5.582" 0.343& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 5.380" 17.85 " 68.88 " 29.26 " 26.70 " 4.670" 0.338& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 13.34 " 74.58 " 97.00 " 26.66 " 24.49 " 4.052" 0.290& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 36.21 " 56.81 " 101.5 " 23.96 " 22.60 " 3.583" 0.379& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 25.38 " 69.65 " 294.2 # 22.58 " 20.18 " 3.043# 0.418& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 21.34 " 58.28 " 343.5 # 21.56 " 17.98 " 2.695# 0.382& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 24.76 " 48.08 " 197.6 # 19.13 " 16.46 " 2.491# 0.610& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 26.28 " 53.89 " 123.0 " 17.82 " 15.22 " 2.200# 0.545& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 20.25 " 41.13 " 92.38 " 16.97 " 15.45 " 1.806$ 0.497& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 18.34 " 33.12 " 81.85 " 16.53 " 25.07 " 1.818$ 0.453& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 15.60 " 29.49 " 72.06 " 17.63 " 25.85 " 1.700$ 0.313& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 12.67 " 26.44 " 60.27 " 23.59 " 21.17 " 1.557$ 0.061& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 10.72 " 48.21 " 52.56 " 31.46 " 17.80 " 1.500$ 0.036& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 9.402" 467.7 # 46.43 " 24.68 " 15.88 " 1.360$ 0.002& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 13.33 " 510.4 # 69.50 " 21.50 " 13.63 " 1.153& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 48.85 " 242.7 # 78.31 " 20.79 " 11.76 " 0.936& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 36.15 " 141.5 " 59.00 " 19.93 " 10.31 " 0.849& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 27.52 " 101.5 " 50.67 " 22.06 " 9.185" 0.812& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 22.63 " 80.90 " 70.64 " 49.30 " 8.391" 0.667& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 18.34 " 65.92 " 97.85 " 97.50 " 7.656" 0.676& 0.000& 30
31 0.000& 0.000& 0.000& 56.32 " 69.15 " 6.824" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 16.82 & 77.30 # 78.81 # 33.14 " 30.31 " 3.919& 0.380&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 13.66 & 41.13 # 60.27 # 27.96 " 22.60 " 2.869& 0.382&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 48.85 & 510.4 # 343.5 # 97.50 " 80.50 " 10.08 & 1.253&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.741# 19.98 # 16.53 " 6.824" 0.667& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 504.5 &2396 #2443 # 994.2 " 939.5 " 117.6 & 11.77 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 20.24 & " ... Relative Uncertainty +/-10%
Ann. Median 0.766& # ... Relative Uncertainty +/-15%
Annual Total 7407 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 510.4 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 13.50 " 13.08 " 5.025" 2.313# 0.228& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.33 " 16.38 " 7.077" 2.200# 0.211& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.68 " 15.83 " 18.28 " 2.157# 0.203& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.326" 12.49 " 17.15 " 2.016# 0.136& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.125" 10.51 " 14.58 " 1.857$ 0.083& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.313" 9.344" 12.95 " 1.789$ 0.065& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.623" 9.130" 12.65 " 1.703$ 0.042& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.059" 9.418" 11.42 " 1.540$ 0.022& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.670" 9.808" 9.623" 1.397$ 0.008& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.239" 8.928" 8.660" 1.359$ 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.899" 8.022" 7.782" 1.413$ 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.607" 7.162" 6.946" 1.398$ 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.292" 6.379" 6.390" 1.331$ 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.014" 5.879" 5.993" 1.268& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.792" 5.399" 5.341" 1.156& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.615" 4.950" 5.082" 1.029& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.646" 4.779" 5.199" 0.922& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.80 " 4.548" 5.311" 0.814& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29.84 " 4.553" 6.170" 0.725& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.28 " 5.544" 6.168" 0.639& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.403& 17.41 " 8.283" 5.386" 0.595& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.00 " 13.69 " 10.33 " 4.581" 0.559& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.09 " 11.01 " 9.624" 4.210" 0.441& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.52 " 9.495" 8.657" 3.922" 0.354& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.35 " 8.293" 7.561" 3.556" 0.308& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.23 " 7.281" 6.526" 3.153# 0.314& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.44 " 6.665" 5.826" 2.937# 0.335& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.77 " 6.275" 5.473" 2.844# 0.324& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 21.58 " 7.677" 5.125" 2.775# 0.262& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 20.34 " 18.04 " 5.080" 2.574# 0.271& 0.000& 30
31 0.000& 0.000& 0.000& 16.56 " 16.10 " 2.440# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.267& 9.954" 8.154" 6.973# 1.093& 0.032&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.677" 7.792" 5.386# 1.092& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.77 & 29.84 " 16.38 " 18.28 # 2.313& 0.228&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.615" 4.548" 2.440# 0.262& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 163.3 & 308.6 " 244.6 " 216.2 # 32.79 & 0.997&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2.648& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 966.4 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 29.84 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 13.78 " 0.000& 0.000& 0.000& 0.986& 1.726$ 25.32 " 16.74 " 10.18 " 6.779" 0.451& 1
2 0.000& 7.330" 0.000& 0.000& 0.000& 0.965& 1.720$ 60.58 " 15.67 " 9.195" 5.946" 0.389& 2
3 0.000& 4.225# 0.000& 0.000& 0.000& 1.237& 1.720$ 121.2 " 14.18 " 8.570" 5.416" 0.350& 3
4 0.000& 2.591# 0.000& 0.000& 0.000& 1.276$ 1.776$ 143.7 " 12.96 " 7.997" 4.892" 0.464& 4
5 0.000& 1.724$ 0.000& 0.000& 0.000& 1.317$ 1.887$ 99.32 " 11.85 " 7.372" 4.201" 0.421& 5
6 0.000& 1.173& 0.000& 0.000& 0.000& 1.734$ 1.891# 72.56 " 10.93 " 6.861" 3.540" 0.408& 6
7 0.000& 0.795& 0.000& 0.000& 0.000& 1.779$ 1.938# 59.73 " 11.42 " 6.605" 3.200# 0.515& 7
8 0.000& 0.643& 0.000& 0.000& 0.000& 2.709# 1.944# 50.27 " 12.85 " 6.518" 2.868# 0.390& 8
9 0.000& 0.590& 0.000& 0.000& 0.000& 2.849# 1.994# 40.72 " 12.84 " 7.000" 2.594# 0.369& 9
10 0.000& 0.522& 0.000& 0.000& 0.000& 3.143# 2.556# 38.07 " 12.11 " 10.07 " 2.393# 0.304& 10
11 0.000& 0.615& 0.000& 0.000& 0.000& 3.441" 3.030# 36.37 " 12.65 " 13.35 " 2.236# 0.254& 11
12 0.000& 0.592& 0.024& 0.000& 0.000& 3.427" 5.056" 32.18 " 10.74 " 10.44 " 2.113# 0.219& 12
13 0.000& 0.563& 0.058& 0.000& 0.000& 3.071# 12.04 " 29.91 " 9.719" 12.00 " 1.947$ 0.151& 13
14 0.000& 0.685& 0.000& 0.000& 0.000& 3.035# 13.45 " 28.48 " 9.046" 20.69 " 1.841$ 0.112& 14
15 0.000& 0.885& 0.000& 0.000& 0.000& 2.968# 23.56 " 24.86 " 8.572" 15.06 " 1.782$ 0.139& 15
16 0.000& 0.755& 0.000& 0.000& 0.000& 2.723# 55.94 " 22.69 " 8.230" 12.07 " 1.713$ 0.100& 16
17 0.000& 0.640& 0.000& 0.000& 0.000& 2.527# 78.57 " 22.08 " 8.491" 10.62 " 1.706$ 0.083& 17
18 0.000& 0.506& 0.000& 0.000& 0.440& 2.464# 59.56 " 42.07 " 9.414" 9.026" 1.695$ 0.044& 18
19 0.000& 0.440& 0.000& 0.000& 0.693& 2.498# 40.65 " 71.88 " 10.98 " 7.877" 1.694$ 0.016& 19
20 0.000& 0.409& 0.000& 0.000& 0.788& 2.305# 30.59 " 62.18 " 9.981" 7.076" 1.643$ 0.001& 20
21 0.000& 0.241& 0.000& 0.000& 0.707& 2.082# 53.29 " 44.36 " 9.971" 6.487" 1.569$ 0.000& 21
22 0.000& 0.089& 0.000& 0.000& 0.682& 1.935# 92.25 " 33.98 " 9.286" 6.032" 1.496$ 0.000& 22
23 0.000& 0.088& 0.000& 0.000& 0.619& 1.857$ 123.8 " 28.76 " 9.139" 5.596" 1.291& 0.000& 23
24 0.000& 0.109& 0.000& 0.000& 0.547& 1.759$ 140.4 " 25.05 " 14.80 " 5.160" 1.128& 0.000& 24
25 0.000& 0.003& 0.000& 0.000& 0.576& 1.720$ 150.8 " 22.49 " 29.18 " 4.768" 1.054& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.568& 1.696$ 99.55 " 20.84 " 23.93 " 4.373" 0.958& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.699& 1.667$ 68.77 " 19.76 " 20.68 " 3.968" 0.840& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 1.107& 1.668$ 49.77 " 19.86 " 16.59 " 3.719" 0.703& 0.000& 28
29 51.66 & 0.000& 0.000& 0.987& 1.738$ 38.26 " 20.51 " 14.13 " 4.192" 0.609& 0.000& 29
30 38.57 " 0.000& 0.000& 0.987& 1.746$ 32.35 " 19.41 " 11.99 " 5.126" 0.523& 0.000& 30
31 33.24 " 0.000& 0.987& 28.32 " 18.37 " 7.186" 0.000& 31
Mean 3.983& 1.428& 0.003& 0.000& 0.335& 2.144& 39.33 $ 43.79 " 12.97 " 8.232" 2.346& 0.167&
Median 0.000& 0.591& 0.000& 0.000& 0.000& 1.896& 28.32 $ 32.18 " 11.92 " 7.186" 1.748& 0.100&
Maximum 51.66 & 13.78 & 0.058& 0.000& 1.107& 3.441& 150.8 $ 143.7 " 29.18 " 20.69 " 6.779& 0.515&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.965& 1.720$ 18.37 " 8.230" 3.719" 0.523& 0.000&
Total 123.5 & 40.00 & 0.082& 0.000& 10.39 & 64.32 &1219 $1358 " 389.1 " 255.2 " 70.37 & 5.180&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 9.684& " ... Relative Uncertainty +/-10%
Ann. Median 1.173& # ... Relative Uncertainty +/-15%
Annual Total 3535 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 150.8 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs Year 1991
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.06 " 283.3 # 19.31 ! 17.03 " 2.664# 0.707& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.62 " 542.2 # 18.13 ! 15.83 " 2.502# 0.630& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 73.92 " 441.8 # 16.89 ! 13.62 " 2.351# 0.586& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 101.5 " 461.2 # 16.00 ! 12.54 " 2.254# 0.516& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 64.62 " 330.7 # 15.36 ! 12.76 " 2.411# 0.441& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 47.52 " 208.5 # 15.08 ! 12.75 " 2.636# 0.394& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 33.55 " 147.5 " 18.53 ! 11.02 " 3.363# 0.316& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.15 " 114.9 " 18.99 ! 10.02 " 3.310# 0.265& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.13 " 94.52 " 46.77 ! 9.175" 3.118# 0.246& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.26 " 79.47 " 41.28 ! 8.534" 2.788# 0.240& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.74 " 67.62 " 35.16 ! 7.810" 2.527# 0.217& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.57 " 57.90 " 32.41 ! 7.127" 2.336# 0.184& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.38 " 49.05 " 44.77 ! 6.554" 2.454# 0.140& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.17 " 42.96 " 83.67 ! 6.068" 2.503# 0.107& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.06 " 38.11 " 80.85 ! 5.502" 2.766# 0.103& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.65 " 34.50 " 93.70 ! 5.169" 2.906# 0.051& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 57.59 " 31.66 " 76.73 ! 4.869" 2.728# 0.012& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 92.53 " 33.44 " 64.61 " 4.959" 2.490# 0.022& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 110.0 " 37.81 " 60.53 " 8.328" 2.237# 0.049& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 155.9 " 34.91 " 48.81 " 10.94 " 2.001# 0.002& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 123.1 " 31.51 " 39.84 " 9.807" 1.862$ 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 92.91 " 28.60 " 33.53 " 8.313" 1.759$ 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 72.49 " 26.26 " 29.05 " 6.894" 1.650$ 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 137.6 " 23.76 " 25.84 " 5.841" 1.517$ 0.149& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 2.325& 116.3 " 21.88 " 23.18 " 5.159" 1.418$ 0.487& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 6.678" 91.68 " 22.11 " 20.92 " 4.583" 1.306$ 0.427& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 13.31 " 94.49 " 30.83 " 18.62 " 4.052" 1.229& 0.352& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 31.41 " 72.58 " 28.47 " 17.03 " 3.560" 1.146& 0.197& 28
29 0.000& 0.000& 0.000& 0.000& 24.22 " 79.76 " 25.54 " 15.69 " 3.299# 0.991& 0.044& 29
30 0.000& 0.000& 0.000& 0.000& 18.39 " 119.4 " 22.68 ! 15.24 " 3.013# 0.838& 0.000& 30
31 0.000& 0.000& 0.000& 126.5 " 20.81 ! 2.785# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 3.211& 66.54 " 110.1 ! 36.22 ! 7.997# 2.202& 0.222&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 72.49 " 37.81 ! 27.45 ! 7.127# 2.381& 0.184&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 31.41 & 155.9 " 542.2 ! 93.70 ! 17.03 # 3.363& 0.707&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.06 " 20.81 ! 15.08 ! 2.785# 0.838& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 96.33 &2063 "3415 !1087 ! 247.9 # 66.06 & 6.886&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 19.13 ! ! ... Not reviewed / Quality not known
Ann. Median 0.022! " ... Relative Uncertainty +/-10%
Annual Total 6981 ! # ... Relative Uncertainty +/-15%
$ ... Relative Uncertainty +/-20%
Maximum Minimum & ... Relative Uncertainty +/-30%
Daily 542.2 ! 0.000!
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs Year 1992
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29.20 " 13.34 " 96.09 " 17.91 " 1.996# 1.935# 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 38.30 " 21.95 " 91.61 " 19.95 " 1.834$ 1.888# 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 36.24 " 38.32 " 153.3 " 30.58 " 1.663$ 1.798$ 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 33.17 " 63.82 " 144.0 " 25.91 " 1.528$ 1.592$ 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 25.31 " 125.3 " 128.7 " 26.15 " 1.441$ 1.388$ 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.19 " 123.8 " 121.6 " 26.15 " 1.355$ 1.158& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.61 " 127.2 " 92.93 " 22.07 " 1.556$ 1.052& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.77 " 84.07 " 78.69 " 19.01 " 1.468$ 0.832& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.76 " 134.1 " 101.2 " 16.80 " 1.607$ 0.703& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.95 " 232.5 # 85.87 " 15.21 " 1.792$ 0.592& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.46 " 184.3 " 69.52 " 14.16 " 1.759$ 0.478& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.91 " 135.0 " 61.86 " 13.05 " 1.703$ 0.362& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30.86 " 95.11 " 53.26 " 11.90 " 1.667$ 0.320& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 59.00 " 75.16 " 45.17 " 10.73 " 1.731$ 0.328& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 40.58 " 77.90 " 38.82 " 9.735" 17.30 # 0.317& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30.88 " 128.4 " 35.68 " 9.017" 11.46 " 0.381& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.02 " 92.78 " 32.69 " 8.166" 6.428" 0.365& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.23 " 76.18 " 29.64 " 7.497" 4.556" 0.417& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.54 " 60.51 " 27.47 " 6.910" 4.519" 0.342& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28.85 " 50.00 " 28.34 " 6.396" 11.93 " 0.368& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.35 " 42.25 " 32.13 " 5.832" 13.31 " 0.335& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.03 " 35.70 " 60.75 " 5.277" 8.818" 0.249& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.28 " 31.88 " 60.76 " 4.739" 6.503" 0.195& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.744& 16.19 " 29.97 " 49.79 " 4.327" 5.127" 0.120& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 2.265$ 14.32 " 40.18 " 38.82 " 3.883" 4.208" 0.033& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 3.459# 13.85 " 117.4 " 31.73 " 3.495" 3.434# 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 5.146" 16.27 " 104.4 " 27.43 " 3.237# 2.881# 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 18.65 " 16.54 " 171.7 " 24.13 " 3.021# 2.530# 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 28.48 " 20.09 " 118.3 " 21.47 " 2.783# 2.267# 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 22.76 " 17.35 " 90.90 " 19.47 " 2.512# 2.086# 0.000& 30
31 0.000& 0.000& 0.000& 14.90 " 108.3 " 2.263# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 2.717& 23.13 " 91.31 # 62.76 " 11.57 # 4.348$ 0.566&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.09 " 90.90 # 51.52 " 9.017# 2.176$ 0.362&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 28.48 & 59.00 " 232.5 # 153.3 " 30.58 # 17.30 $ 1.935&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.91 " 13.34 # 19.47 " 2.263# 1.355$ 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 81.50 & 717.0 "2831 #1883 " 358.7 # 130.5 $ 17.55 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 16.44 & " ... Relative Uncertainty +/-10%
Ann. Median 0.157& # ... Relative Uncertainty +/-15%
Annual Total 6019 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 232.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 0.000& 10.32 " 11.82 " 2.125# 0.584& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.759" 15.20 " 2.019# 0.608& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.820" 15.56 " 1.939# 0.572& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.24 " 12.80 " 1.823$ 0.344& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 25.94 " 11.71 " 1.709$ 0.120& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.543& 22.32 " 10.20 " 1.601$ 0.001& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.77 " 30.79 " 8.962" 1.481$ 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.60 " 55.07 " 8.013" 1.360$ 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.45 " 38.07 " 7.146" 1.411$ 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.16 " 33.39 " 6.519" 1.332$ 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.75 " 25.36 " 6.069" 1.218& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.35 " 21.97 " 5.568" 1.250& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.74 " 20.68 " 5.029" 1.404$ 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.614" 16.91 " 4.681" 1.364$ 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.263" 14.82 " 4.469" 1.356$ 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.609" 15.09 " 4.368" 1.278& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.113" 18.96 " 4.116" 1.212& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.850" 33.06 " 3.702" 1.183& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.032" 30.86 " 3.429" 1.166& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.532" 26.18 " 3.198# 1.200& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.918" 22.93 " 3.029# 1.074& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.350" 19.39 " 2.771# 0.939& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.851" 16.79 " 2.577# 0.788& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.467" 16.45 " 2.421# 0.697& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.814" 13.96 " 2.323# 0.589& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.487" 12.00 " 2.266# 0.550& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.469" 10.61 " 2.253# 0.645& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.294" 9.550" 2.135# 0.751& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.361" 9.065" 2.193# 0.782& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.26 " 9.593" 2.396# 0.771& 0.000& 30
31 0.000& 0.000& 0.000& 0.000& 10.97 " 2.329# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.826& 20.47 " 5.783# 1.234& 0.072&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.469& 17.93 " 4.368# 1.234& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.60 & 55.07 " 15.56 # 2.125& 0.608&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.820" 2.135# 0.550& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 242.6 & 614.0 " 179.3 # 37.01 & 2.231&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2.945& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1075 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 55.07 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 4.782# 7.782" 10.33 " 2.725# 0.569& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.32 " 7.455" 11.27 " 3.111# 0.529& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.30 " 7.094" 10.03 " 3.281# 0.478& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.77 " 28.78 " 9.784" 2.971# 0.444& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.11 " 44.21 " 8.754" 2.698# 0.395& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.822" 33.30 " 8.017" 2.356# 0.392& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.367" 27.10 " 7.199" 2.160# 0.395& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.421" 22.21 " 6.312" 2.088# 0.349& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.28 " 20.14 " 5.736" 1.992# 0.305& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 34.89 " 33.28 " 5.871" 1.884$ 0.219& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 34.34 " 36.85 " 9.443" 1.803$ 0.213& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 34.64 " 35.73 " 12.50 " 1.675$ 0.148& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.14 " 30.06 " 9.329" 1.671$ 0.062& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 33.49 " 25.50 " 7.981" 1.681$ 0.026& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28.35 " 21.80 " 7.359" 1.651$ 0.009& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.23 " 18.59 " 6.553" 1.704$ 0.000& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 25.26 " 16.04 " 5.893" 1.751$ 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.61 " 14.18 " 5.337" 1.568$ 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.58 " 12.75 " 4.837" 1.430$ 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.01 " 11.47 " 4.512" 1.320$ 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.79 " 10.45 " 4.101" 1.231& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.55 " 9.682" 3.665" 1.113& 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.90 " 9.150" 3.452" 1.017& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.96 " 8.676" 3.181# 0.960& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.22 " 8.071" 2.954# 0.890& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.46 " 7.546" 2.843# 0.836& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.85 " 7.100" 2.674# 0.767& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.20 " 6.587" 2.553# 0.678& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 1.287& 9.898" 6.265" 2.549# 0.635& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 2.448# 8.962" 6.279" 2.663# 0.616& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 8.238" 6.883" 0.589& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.125& 17.31 # 17.45 " 6.256# 1.640& 0.151& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.30 # 12.75 " 5.882# 1.671& 0.005& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 2.448& 34.89 # 44.21 " 12.50 # 3.281& 0.569& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.782# 6.265" 2.549# 0.589& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 3.736& 536.7 # 541.0 " 187.7 # 50.85 & 4.533& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3.629& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1325 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 44.21 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs Year 1995
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.461# 120.5 " 25.93 " 9.305" 6.340" 0.482& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.203# 92.68 " 23.78 " 8.510" 5.830" 0.520& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.018# 75.69 " 28.54 " 8.035" 5.356" 0.503& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.873$ 63.74 " 49.61 " 7.615" 4.903" 0.626& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.809$ 54.52 " 36.03 " 7.352" 4.396" 0.718& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.016$ 46.88 " 58.30 " 7.614" 3.821" 0.734& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.304# 40.73 " 86.83 " 7.311" 3.541" 0.648& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.200" 36.54 " 69.04 " 6.892" 3.590" 0.574& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 17.86 & 30.74 " 48.57 " 56.46 " 6.455" 4.072" 0.530& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 19.57 " 34.36 " 53.06 " 47.27 " 6.016" 5.064" 0.445& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 9.737" 51.10 " 60.27 " 38.04 " 5.722" 4.658" 0.234& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 8.792" 113.4 " 54.19 " 34.41 " 5.466" 3.766" 0.094& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 6.691" 247.6 # 108.0 " 47.81 " 5.638" 3.164# 0.289& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 4.566" 176.4 " 108.1 " 40.25 " 5.061" 2.823# 0.416& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 3.101# 104.6 " 83.48 " 32.94 " 4.523" 2.551# 0.215& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 2.303# 108.4 " 61.75 " 29.36 " 4.038" 2.216# 0.005& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 1.819$ 79.03 " 52.85 " 26.34 " 4.440" 1.924$ 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 1.489$ 63.14 " 51.80 " 23.81 " 186.2 # 1.717$ 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 1.284& 56.87 " 44.62 " 22.02 " 120.6 " 1.539$ 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 1.181& 260.8 # 62.91 " 20.51 " 64.93 " 1.327$ 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 1.081& 385.0 # 56.50 " 19.15 " 37.53 " 1.197& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 1.337& 222.9 # 57.00 " 17.62 " 26.67 " 1.012& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 1.851$ 126.2 " 51.40 " 16.16 " 20.56 " 0.831& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 1.791$ 96.45 " 57.40 " 14.92 " 16.68 " 0.755& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 2.160$ 315.1 # 63.72 " 13.60 " 13.56 " 0.718& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 2.633# 330.1 # 54.36 " 12.33 " 11.11 " 0.660& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 3.801# 182.5 " 48.84 " 11.50 " 9.520" 0.598& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 3.237# 126.8 " 40.56 " 11.16 " 8.338" 0.524& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 2.769# 193.7 # 34.72 " 10.92 " 7.404" 0.505& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 2.779# 271.7 # 31.56 " 10.28 " 6.680" 0.462& 0.000& 30
31 0.000& 0.000& 0.000& 189.0 # 28.59 " 6.199" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 3.394& 122.2 $ 59.54 " 31.16 " 20.84 # 2.662& 0.227&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 1.835& 104.6 $ 54.36 " 26.13 " 7.614# 2.384& 0.005&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 19.57 & 385.0 $ 120.5 " 86.83 " 186.2 # 6.340& 0.734&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.809$ 28.59 " 10.28 " 4.038# 0.462& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 101.8 &3789 $1846 " 934.9 " 646.0 # 79.86 & 7.032&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 20.29 & " ... Relative Uncertainty +/-10%
Ann. Median 0.482& # ... Relative Uncertainty +/-15%
Annual Total 7404 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 385.0 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 51.50 " 628.3 # 56.69 " 92.03 " 10.70 " 2.811# 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 34.71 " 536.5 # 48.14 " 79.27 " 9.691" 2.882# 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 112.2 " 436.6 # 45.67 " 68.99 " 8.797" 2.856# 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 100.1 " 347.6 # 44.99 " 60.92 " 7.906" 2.686# 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 80.38 " 404.7 # 38.15 " 52.83 " 7.201" 2.455# 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 55.46 " 441.4 # 42.59 " 46.15 " 13.54 " 2.188# 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 39.47 " 322.0 # 44.35 " 40.40 " 39.63 " 1.981# 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 54.85 " 229.8 # 41.73 " 35.41 " 23.08 " 1.804$ 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 65.00 " 183.5 " 40.24 " 32.20 " 17.89 " 1.633$ 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 53.27 " 155.6 " 50.62 " 32.37 " 13.83 " 1.436$ 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 38.91 " 203.9 " 105.8 " 37.04 " 10.90 " 1.321& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30.93 " 158.5 " 86.47 " 29.87 " 9.222" 1.299& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.85 " 367.7 # 70.20 " 26.41 " 8.112" 1.225& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.15 " 317.4 # 62.47 " 24.02 " 7.391" 1.177& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.09 " 219.0 # 136.8 # 21.77 " 8.054" 1.239& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 112.9 " 164.9 " 360.2 # 19.39 " 25.98 " 1.240& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 841.4 # 133.9 " 264.2 # 17.65 " 24.20 " 1.067& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 877.2 # 112.7 " 202.1 " 16.51 " 15.58 " 0.843& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 544.9 # 97.80 " 163.0 " 15.24 " 12.15 " 0.743& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 5.418& 303.2 # 96.01 " 118.4 " 14.08 " 9.807" 0.627& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 97.34 " 241.9 # 140.9 " 97.17 " 16.41 " 8.133" 0.466& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 144.7 " 443.3 # 120.2 " 256.0 # 40.25 " 6.731" 0.373& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 69.42 " 467.9 # 105.3 " 233.7 # 31.58 " 5.612" 0.331& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 43.45 " 662.8 # 156.5 " 164.8 " 51.37 " 4.688" 0.271& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 27.27 " 643.7 # 148.8 " 117.5 " 37.16 " 4.026" 0.215& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 19.41 " 359.1 # 110.6 " 105.2 " 29.42 " 3.541" 0.158& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 24.16 " 391.8 # 90.78 " 262.5 # 23.83 " 3.183# 0.095& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 76.45 " 519.7 # 79.41 " 255.6 # 19.40 " 2.937# 0.020& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 56.40 " 360.5 # 69.77 " 163.2 " 16.31 " 2.730# 0.001& 29
30 0.000& 0.000& 0.000& 0.000& 62.92 " 436.1 # 62.28 " 112.9 " 14.01 " 2.750# 0.000& 30
31 0.000& 0.000& 0.000& 658.2 # 57.81 " 12.08 " 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 20.90 & 279.2 # 216.1 # 126.4 # 34.01 " 10.93 # 1.143&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 112.9 # 156.5 # 105.5 # 29.87 " 8.465# 1.177&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 144.7 & 877.2 # 628.3 # 360.2 # 92.03 " 39.63 # 2.882&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.09 # 57.81 # 38.15 # 12.08 " 2.730# 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 626.9 &8655 #6700 #3791 #1054 " 328.0 # 35.44 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 57.90 & " ... Relative Uncertainty +/-10%
Ann. Median 0.685& # ... Relative Uncertainty +/-15%
Annual Total 21192 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 877.2 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 6.062" 18.89 " 7.266" 1.813$ 0.580& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.379" 21.58 " 6.698" 1.809$ 0.538& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.177" 19.92 " 6.270" 1.816$ 0.591& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.852" 20.42 " 5.865" 1.866$ 0.394& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.29 " 26.94 " 5.457" 1.883$ 0.271& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 35.12 " 133.8 " 5.285" 1.628$ 0.319& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 33.52 " 79.82 " 5.054" 1.495$ 0.343& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.096& 26.95 " 65.01 " 5.026" 1.421$ 0.362& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.563$ 31.71 " 72.33 " 6.342" 1.371$ 0.357& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.465# 82.87 " 70.30 " 12.77 " 1.274& 0.365& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.512# 70.89 " 55.58 " 14.66 " 1.172& 0.292& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.344# 49.76 " 45.45 " 10.75 " 1.179& 0.227& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.186# 32.99 " 37.37 " 9.539" 1.144& 0.158& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.204" 26.29 " 31.93 " 8.347" 1.026& 0.123& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.753" 45.38 " 28.43 " 7.411" 0.922& 0.090& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.972" 43.46 " 25.13 " 6.136" 0.869& 0.073& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.732" 31.69 " 22.03 " 4.924" 0.846& 0.064& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.340" 27.45 " 19.73 " 4.257" 0.858& 0.028& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.384" 23.59 " 18.01 " 3.702" 0.777& 0.008& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.777" 20.13 " 16.77 " 3.326# 0.724& 0.003& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.388# 17.54 " 15.31 " 3.030# 0.745& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.158# 15.57 " 13.81 " 2.845# 0.727& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.122# 13.81 " 12.61 " 2.691# 0.653& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.206# 12.43 " 11.48 " 2.369# 0.597& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.398" 11.33 " 10.53 " 2.300# 0.601& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.639" 10.60 " 9.922" 2.250# 0.832& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.534" 10.23 " 9.304" 2.164# 0.815& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.616" 11.52 " 8.808" 2.018# 0.776& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 8.319" 22.54 " 8.272" 1.886$ 0.739& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 7.594" 22.61 " 7.742" 1.793$ 0.628& 0.000& 30
31 0.000& 0.000& 0.000& 6.933" 21.80 " 1.795$ 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.008& 25.76 " 31.24 " 5.297$ 1.100& 0.167&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.388& 22.54 " 20.17 " 5.026$ 0.896& 0.073&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.616& 82.87 " 133.8 " 14.66 $ 1.883& 0.591&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.177" 7.742" 1.793$ 0.597& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 124.2 & 798.5 " 937.2 " 164.2 $ 33.01 & 5.186&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.650& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 2062 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 133.8 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 5.231" 94.07 " 26.45 " 2.634# 0.441& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.607" 148.6 " 24.54 " 2.487# 0.425& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.272" 152.0 " 23.15 " 2.327# 0.400& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.476" 120.9 " 19.94 " 2.191# 0.312& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.900" 83.27 " 17.05 " 2.104# 0.300& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.33 " 62.87 " 14.72 " 1.989# 0.560& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.905& 11.80 " 48.63 " 12.98 " 1.876$ 0.589& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.897" 15.36 " 38.75 " 11.53 " 1.776$ 0.554& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.355" 13.33 " 32.40 " 10.49 " 1.637$ 0.515& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.764" 12.37 " 28.09 " 9.634" 1.526$ 0.516& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.267" 12.20 " 24.07 " 8.897" 1.393$ 0.406& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.919" 11.37 " 21.15 " 8.334" 1.265& 0.188& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.956" 9.886" 19.44 " 8.016" 1.265$ 0.061& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.532" 8.821" 18.39 " 7.579" 1.206& 0.002& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.226" 8.295" 16.10 " 7.175" 1.159& 0.260& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.154" 7.712" 14.92 " 6.938" 1.176& 0.326& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.756" 7.194" 13.90 " 7.784" 1.182& 0.133& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.935" 7.900" 12.49 " 11.66 " 1.061& 0.013& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.910" 15.53 " 11.30 " 8.926" 0.951& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.229" 12.52 " 10.64 " 7.353" 0.894& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.068" 11.21 " 12.29 " 6.557" 0.791& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.186" 9.697" 35.14 " 6.153" 0.751& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.178" 8.505" 31.94 " 5.512" 0.677& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.774" 8.036" 27.14 " 4.944" 0.612& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.676" 8.389" 32.12 " 4.431" 0.561& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.197" 7.911" 29.23 " 3.953" 0.498& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.285" 7.889" 28.13 " 3.699" 0.451& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.157" 22.83 " 27.36 " 3.502" 0.433& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 5.755" 76.89 " 21.63 " 3.240# 0.371& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 5.487" 123.1 " 20.86 " 3.051# 0.353& 0.000& 30
31 0.000& 0.000& 0.000& 5.257" 126.8 " 2.868# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.672& 19.59 " 41.26 " 9.712# 1.253& 0.194&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.186& 9.697" 27.72 " 7.784# 1.179& 0.061&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.285& 126.8 " 152.0 " 26.45 # 2.634& 0.589&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.231" 10.64 " 2.868# 0.353& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 113.8 & 607.3 "1238 " 301.1 # 37.60 & 6.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 6.311& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 2304 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 152.0 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs Year 1999
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.628" 25.48 " 37.58 " 33.56 " 10.14 " 0.906& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.167" 21.55 " 35.29 " 29.75 " 9.233" 0.850& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.756" 18.90 " 130.6 " 26.27 " 8.401" 0.775& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.512" 17.52 " 172.9 " 23.27 " 7.796" 0.697& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.32 " 15.00 " 125.5 " 20.82 " 7.188" 0.604& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 41.78 " 15.18 " 88.76 " 18.88 " 6.600" 0.494& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 56.98 " 25.08 " 67.86 " 30.38 " 6.049" 0.478& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.31 " 19.55 " 53.85 " 232.0 # 5.577" 0.424& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.40 " 18.08 " 43.79 " 265.6 # 5.082" 0.442& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.16 " 27.53 " 37.85 " 161.8 " 4.653" 0.506& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.87 " 145.8 " 118.1 " 102.2 " 4.204" 0.649& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.66 " 114.6 " 150.8 " 75.69 " 3.749" 0.944& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.53 " 77.28 " 124.8 " 67.14 " 3.480" 1.443& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 34.99 " 54.53 " 141.1 " 170.7 " 3.299# 1.400& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 48.04 " 47.78 " 161.5 " 139.3 " 3.058# 1.249& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 65.12 " 54.35 " 122.5 " 118.5 " 2.916# 1.186& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 67.72 " 63.01 " 92.10 " 89.69 " 2.762# 1.207& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 56.10 " 108.3 " 70.45 " 67.75 " 2.668# 1.052& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 42.30 " 124.7 " 57.05 " 55.21 " 2.612# 0.634& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 33.54 " 98.58 " 46.92 " 44.85 " 2.484# 0.434& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.16 " 72.68 " 48.13 " 36.64 " 2.326# 0.194& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.96 " 57.26 " 89.76 " 31.75 " 2.181# 0.030& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.470& 18.56 " 45.50 " 75.42 " 28.22 " 2.026# 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 8.831" 16.22 " 61.29 " 61.93 " 24.76 " 1.902$ 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 7.643" 14.59 " 108.1 " 47.59 " 21.56 " 1.760$ 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 9.471" 35.19 " 114.9 " 40.12 " 19.12 " 1.589$ 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 8.599" 42.57 " 84.84 " 42.87 " 17.30 " 1.445$ 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 7.414" 45.39 " 65.74 " 55.10 " 15.80 " 1.292& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 6.384" 52.13 " 54.75 " 47.04 " 14.16 " 1.147& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 5.436" 35.26 " 53.21 " 38.59 " 12.63 " 1.029& 0.000& 30
31 0.000& 0.000& 0.000& 29.99 " 44.51 " 11.25 " 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 1.808& 29.84 " 59.86 " 80.86 " 64.73 # 3.955& 0.535&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29.99 " 54.53 " 64.89 " 31.75 # 2.987& 0.494&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 9.471& 67.72 " 145.8 " 172.9 " 265.6 # 10.14 & 1.443&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.512" 15.00 " 35.29 " 11.25 # 1.029& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 54.25 & 924.9 "1856 "2426 "2006 # 118.6 & 16.60 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 20.28 & " ... Relative Uncertainty +/-10%
Ann. Median 0.030& # ... Relative Uncertainty +/-15%
Annual Total 7402 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 265.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.67 " 213.5 # 8.858" 1.416$ 0.372& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.39 " 159.9 " 8.313" 1.352$ 0.294& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.553& 28.10 " 113.3 " 7.747" 1.287& 0.242& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.553& 24.70 " 85.76 " 7.288" 1.187& 0.200& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.54 " 29.19 " 68.57 " 6.777" 1.120& 0.127& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.82 " 64.85 " 92.76 " 6.283" 1.088& 0.101& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.49 " 73.45 " 96.36 " 5.764" 1.171& 0.024& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.09 " 71.66 " 81.37 " 5.538" 1.281$ 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.57 " 52.38 " 63.29 " 5.267" 1.410$ 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.730" 38.54 " 50.32 " 5.027" 1.453$ 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.05 " 31.21 " 41.47 " 4.812" 1.354$ 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.96 " 27.11 " 35.56 " 4.402" 1.255& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.80 " 23.66 " 33.25 " 3.997" 1.131& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28.50 " 21.57 " 33.29 " 3.738" 0.977& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 37.29 " 21.10 " 32.28 " 3.523" 0.828& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 39.81 " 38.04 " 28.80 " 3.362" 0.774& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 87.97 " 62.21 " 25.42 " 3.086# 0.771& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 121.1 " 58.06 " 23.19 " 2.812# 0.690& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 106.3 " 40.34 " 21.20 " 2.602# 0.660& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 81.42 " 31.09 " 19.38 " 2.452# 0.716& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 58.97 " 26.26 " 17.73 " 2.288# 0.717& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 49.97 " 22.59 " 16.11 " 2.215# 0.665& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 43.61 " 20.51 " 14.49 " 2.160# 0.594& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 36.59 " 21.47 " 13.13 " 2.106# 0.557& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.11 " 23.34 " 11.85 " 1.989# 0.504& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.26 " 29.67 " 10.87 " 1.902$ 0.525& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.43 " 34.21 " 10.37 " 1.818$ 0.676& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.26 " 30.84 " 10.46 " 1.721$ 0.574& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.72 " 34.48 " 10.47 " 1.659$ 0.499& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 19.35 " 42.27 " 9.560" 1.599$ 0.377& 0.000& 30
31 0.000& 0.000& 0.000& 18.90 " 179.9 # 1.480$ 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 32.05 & 39.96 # 48.13 # 3.954$ 0.920& 0.044&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.26 & 30.84 # 30.54 # 3.362$ 0.801& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 121.1 & 179.9 # 213.5 # 8.858$ 1.453& 0.372&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.67 # 9.560# 1.480$ 0.377& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 993.7 &1239 #1444 # 122.6 $ 27.61 & 1.361&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 10.46 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 3828 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 213.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 6.840" 4.959" 27.87 " 1.455$ 0.010& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.799# 4.659" 21.75 " 1.327& 0.010& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.063# 4.257" 16.16 " 1.149& 0.061& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.453" 3.976" 12.40 " 1.044& 0.118& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.515" 3.862" 10.10 " 0.927& 0.167& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.876" 4.017" 8.366" 0.748& 0.187& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.054" 4.181" 7.193" 0.675& 0.221& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.658" 5.989" 6.498" 0.596& 0.214& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.618" 6.878" 5.831" 0.501& 0.185& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.75 " 12.20 " 5.151" 0.424& 0.210& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.47 " 10.79 " 4.685" 0.361& 0.319& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.66 " 9.105" 4.251" 0.258& 0.339& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.59 " 8.223" 3.714" 0.144& 0.273& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.56 " 7.155" 3.448" 0.102& 0.120& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 39.80 " 6.241" 3.224# 0.059& 0.031& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.58 " 5.446" 2.809# 0.047& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28.12 " 4.978" 2.597# 0.025& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.92 " 4.555" 2.411# 0.014& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.63 " 4.020" 2.235# 0.059& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.95 " 3.621" 2.159# 0.005& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.674" 3.432" 2.335# 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.362" 3.349" 2.572# 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.515" 3.367" 4.000# 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.818" 3.835" 4.027" 0.003& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.859" 3.946" 3.185# 0.004& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.766" 3.603" 2.776# 0.002& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.789" 3.617# 2.405# 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.756" 4.454" 2.155# 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.497& 6.217" 10.45 " 1.930$ 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 7.418" 5.584" 30.43 " 1.771$ 0.003& 0.000& 30
31 0.000& 0.000& 0.000& 14.93 " 5.169" 1.572$ 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.737& 11.14 # 6.320# 5.857$ 0.331& 0.080&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.818# 4.505# 3.448$ 0.059& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.93 & 39.80 # 30.43 # 27.87 $ 1.455& 0.339&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.799# 3.349# 1.572$ 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.85 & 345.4 # 189.6 # 181.6 $ 9.932& 2.466&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2.060& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 751.8 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 39.80 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 7.641" 18.30 " 4.262" 2.367# 0.220& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.429" 54.55 " 3.708" 3.099# 0.090& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.686" 42.29 " 3.420" 3.821" 0.111& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.886" 34.50 " 3.346" 3.253# 0.122& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.512" 27.57 " 3.439# 2.751# 0.189& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.18 " 21.92 " 6.603" 2.410# 0.173& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.001" 18.11 " 13.80 " 2.059# 0.163& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.305" 15.30 " 9.982" 1.829$ 0.214& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.64 " 13.02 " 8.035" 1.682$ 0.341& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.60 " 11.31 " 7.217" 1.587$ 0.441& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.72 " 10.05 " 6.131" 1.460$ 0.469& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.92 " 8.937" 5.201" 1.311$ 0.471& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.32 " 8.317" 4.635" 1.161& 0.441& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.34 " 8.930" 4.123" 1.048& 0.610& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.44 " 22.86 " 3.664" 0.923& 0.680& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.138& 8.712" 22.06 " 3.332# 0.811& 0.533& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.790& 7.660" 16.05 " 4.137# 0.761& 0.292& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.135& 6.781" 14.84 " 7.278" 0.676& 0.089& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.446& 6.177" 12.35 " 7.797" 0.633& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.529$ 5.699" 10.38 " 6.166" 0.655& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.613& 5.294" 9.150" 4.954" 0.599& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.107$ 4.908" 8.327" 4.104" 0.524& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.768$ 4.465" 7.857" 3.595" 0.463& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.362# 4.184" 7.881" 3.175# 0.438& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.977# 4.007" 7.427" 2.879# 0.408& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.35 " 4.006" 6.992" 2.632# 0.377& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.78 " 5.447" 6.229" 2.462# 0.289& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.37 " 8.106" 5.621" 2.334# 0.251& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 12.16 " 6.705" 5.155" 2.170# 0.234& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 11.14 " 6.978" 4.783" 2.020# 0.225& 0.000& 30
31 0.000& 0.000& 0.000& 8.970" 8.785" 1.992# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.924& 8.533" 15.37 " 4.793# 1.270& 0.182&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.138& 7.641" 10.84 " 4.104# 0.867& 0.111&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.78 & 19.72 " 54.55 " 13.80 # 3.821& 0.680&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.006" 4.783" 1.992# 0.225& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 90.64 & 264.5 " 461.1 " 148.6 # 38.11 & 5.649&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2.763& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1009 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 54.55 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 12.03 " 14.90 " 25.23 " 45.44 " 2.875# 0.556& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.19 " 16.97 " 22.69 " 34.90 " 2.634# 0.466& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.32 " 125.3 " 20.78 " 30.17 " 2.459# 0.399& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.84 " 155.2 " 20.46 " 25.41 " 2.243# 0.420& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 34.80 " 115.6 " 19.95 " 21.39 " 2.034# 0.447& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 44.00 " 69.33 " 17.56 " 18.59 " 1.897$ 0.313& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 33.90 " 49.75 " 16.64 " 16.53 " 1.778$ 0.223& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.46 " 37.31 " 15.98 " 14.70 " 1.664$ 0.213& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.57 " 31.12 " 20.70 " 13.12 " 1.503$ 0.197& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 104.8 " 34.43 " 25.04 " 11.67 " 1.348$ 0.205& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 191.5 " 143.1 " 39.61 " 10.29 " 1.196& 0.184& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 127.0 " 135.8 " 45.16 " 9.509" 1.060& 0.162& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 79.37 " 105.7 " 43.54 " 9.119" 0.948& 0.189& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 66.02 " 68.31 " 35.58 " 9.277" 0.912& 0.144& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 65.78 " 51.72 " 29.46 " 9.177" 0.823& 0.064& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 49.79 " 42.72 " 24.82 " 8.473" 0.747& 0.103& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 39.47 " 37.36 " 21.37 " 7.783" 1.110& 0.197& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.88 " 32.46 " 18.95 " 7.072" 1.690$ 0.365& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.15 " 30.98 " 17.17 " 6.503" 2.236# 0.328& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.29 " 30.59 " 17.42 " 6.175" 2.348# 0.300& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.21 " 31.53 " 20.65 " 5.784" 2.318# 0.228& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.31 " 157.6 " 37.27 " 5.340" 2.063# 0.207& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.80 " 148.3 " 64.73 " 4.894" 1.788$ 0.142& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.15 " 114.9 " 69.16 " 4.494" 1.569$ 0.091& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.17 " 84.33 " 62.85 " 4.149" 1.501$ 0.049& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.60 " 64.17 " 48.83 " 3.783" 1.319& 0.009& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.37 " 53.25 " 37.02 " 3.644" 1.183& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.19 " 44.29 " 30.81 " 4.209" 1.006& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 1.875& 10.26 " 36.72 " 31.03 " 4.633" 0.854& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 13.00 # 10.85 " 31.47 " 58.67 " 3.946" 0.691& 0.000& 30
31 0.000& 0.000& 0.000& 14.01 " 27.94 " 3.300# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.496& 38.75 " 68.49 " 31.97 " 11.73 # 1.593& 0.200&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.57 " 49.75 " 25.13 " 8.473# 1.536& 0.197&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 13.00 & 191.5 " 157.6 " 69.16 " 45.44 # 2.875& 0.556&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.26 " 14.90 " 15.98 " 3.300# 0.691& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 14.88 &1201 "2123 " 959.1 " 363.5 # 47.80 & 6.202&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 12.92 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 4716 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 191.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 8.181" 43.56 " 6.221" 2.084# 0.492& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.47 " 35.31 " 5.907" 2.001# 0.440& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.70 " 30.28 " 5.667" 1.930# 0.393& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.51 " 27.17 " 5.259" 1.826$ 0.354& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.15 " 27.88 " 5.020" 1.740$ 0.312& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.23 " 47.51 " 5.089" 1.690$ 0.267& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.66 " 57.23 " 5.870" 1.617$ 0.277& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.23 " 43.35 " 6.773" 1.565$ 0.334& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.272& 9.781" 38.40 " 5.828" 1.566$ 0.350& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.591" 8.894" 31.24 " 5.278" 1.720$ 0.288& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.309" 8.719" 26.60 " 5.242" 1.759$ 0.284& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.491" 41.40 " 23.40 " 6.239" 1.951# 0.219& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.210" 47.89 " 21.18 " 8.047" 1.902$ 0.227& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.517" 35.32 " 19.30 " 7.272" 1.853$ 0.146& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.041# 30.06 " 17.82 " 6.076" 1.800$ 0.158& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.582# 23.66 " 16.62 " 5.361" 1.626$ 0.125& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.288# 19.79 " 15.36 " 4.858" 1.540$ 0.100& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.096# 19.61 " 14.36 " 4.490" 1.408$ 0.039& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.003# 18.07 " 13.21 " 4.066" 1.304$ 0.014& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.986# 16.95 " 12.27 " 3.651" 1.231& 0.004& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.591# 23.31 " 12.08 " 4.078" 1.149& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.475# 22.93 " 11.16 " 4.177" 1.127& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.002" 23.45 " 10.40 " 4.373" 0.932& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.569" 39.96 " 9.794" 3.955" 0.826& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.673" 83.07 " 9.132" 3.305# 0.848& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.301# 87.05 " 8.484" 2.867# 0.836& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.081# 157.1 # 7.913" 2.595# 0.831& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.862# 161.1 " 7.498" 2.454# 0.724& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.642# 105.4 " 6.961" 2.303# 0.665& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 2.752# 73.46 " 6.479" 2.189# 0.601& 0.000& 30
31 0.000& 0.000& 0.000& 3.280# 54.99 " 2.162# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.794& 39.07 # 21.73 " 4.731# 1.422& 0.156&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.752& 22.93 # 17.22 " 5.020# 1.565& 0.125&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.591& 161.1 # 57.23 " 8.047# 2.084& 0.492&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.181# 6.479" 2.162# 0.601& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 86.61 &1211 # 652.0 " 146.7 # 42.65 & 4.823&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.857& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 2144 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 161.1 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 26.81 " 9.089" 23.08 " 26.45 " 5.552" 0.689& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.012& 21.92 " 9.597" 20.91 " 28.92 " 5.227" 0.626& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.115& 20.60 " 15.66 " 19.03 " 27.78 " 4.973" 0.529& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.369& 38.12 " 16.62 " 17.61 " 27.31 " 4.658" 0.516& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.399& 42.85 " 12.98 " 16.82 " 28.19 " 5.105" 0.495& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.630& 32.75 " 12.39 " 78.86 " 30.12 " 6.993" 0.475& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.669& 28.95 " 12.09 " 79.42 " 30.99 " 6.388" 0.450& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 4.614& 24.64 " 10.81 " 102.8 " 26.07 " 5.331" 0.447& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 18.88 " 21.34 " 9.711" 113.8 " 22.73 " 4.591" 0.430& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 60.85 " 18.54 " 8.956" 84.30 " 20.93 " 4.134" 0.419& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 74.61 " 16.52 " 8.270" 64.66 " 18.43 " 3.774" 0.439& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 79.56 " 14.94 " 8.378" 53.51 " 16.71 " 3.512" 0.406& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 79.79 " 15.85 " 17.92 " 45.87 " 14.82 " 3.230# 0.354& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 50.25 " 17.66 " 42.78 " 41.76 " 13.26 " 2.877# 0.327& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 35.68 " 17.43 " 36.37 " 37.28 " 12.12 " 2.639# 0.292& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 28.83 " 16.01 " 35.68 " 31.85 " 11.17 " 2.406# 0.276& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 37.86 " 15.07 " 89.09 " 58.61 " 10.84 " 2.165# 0.265& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 31.70 " 13.51 " 187.5 " 86.95 " 12.72 " 1.989# 0.261& 18
19 0.000& 0.000& 0.000& 0.000& 1.421& 27.89 " 12.26 " 139.0 " 64.09 " 11.81 " 1.888$ 0.245& 19
20 0.000& 0.000& 0.000& 0.000& 1.321& 24.17 " 11.52 " 93.23 " 56.32 " 10.37 " 1.785$ 0.186& 20
21 0.000& 0.000& 0.000& 0.000& 0.194& 19.94 " 19.42 " 65.39 " 50.07 " 10.09 " 1.579$ 0.160& 21
22 0.000& 0.000& 0.000& 0.000& 0.071& 17.28 " 26.25 " 50.35 " 40.44 " 10.70 " 1.346& 0.165& 22
23 0.000& 0.000& 0.000& 0.000& 0.022& 22.91 " 21.12 " 40.47 " 34.44 " 10.93 " 1.141& 0.233& 23
24 0.000& 0.000& 0.000& 0.000& 0.015& 82.12 " 20.46 " 34.32 " 30.18 " 9.674" 1.049& 0.163& 24
25 0.000& 0.000& 0.000& 0.000& 0.008& 68.11 " 18.62 " 31.63 " 26.60 " 8.726" 0.887& 0.095& 25
26 0.000& 0.000& 0.000& 0.000& 0.004& 56.78 " 16.61 " 30.00 " 23.89 " 8.460" 0.740& 0.077& 26
27 0.000& 0.000& 0.000& 0.000& 0.002& 39.52 " 14.59 " 27.66 " 21.73 " 8.124" 0.671& 0.059& 27
28 0.000& 0.000& 0.000& 0.000& 0.001& 30.75 " 12.84 " 27.97 " 20.26 " 7.598" 0.610& 0.022& 28
29 0.000& 0.000& 0.000& 0.001& 25.97 " 11.68 " 32.70 " 20.14 " 6.961" 0.642& 0.014& 29
30 0.000& 0.000& 0.000& 0.000& 26.66 " 10.63 " 31.12 " 22.92 " 6.477" 0.690& 0.010& 30
31 0.000& 0.000& 0.000& 9.732" 26.43 " 6.016" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.099& 31.56 & 19.65 " 37.88 " 46.28 " 15.98 " 2.952& 0.294&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 27.27 & 17.66 " 27.97 " 38.86 " 12.12 " 2.522& 0.276&
Maximum 0.000& 0.000& 0.000& 0.000& 1.421& 82.12 & 42.85 " 187.5 " 113.8 " 30.99 " 6.993& 0.689&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.732" 8.270" 16.82 " 6.016" 0.610& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 3.061& 946.9 & 609.3 "1174 "1388 " 495.5 " 88.57 & 9.123&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 12.92 & " ... Relative Uncertainty +/-10%
Ann. Median 0.529& # ... Relative Uncertainty +/-15%
Annual Total 4715 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 187.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 0.000& 22.71 " 5.302" 1.352$ 0.224& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29.67 " 4.938" 1.311$ 0.039& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.404& 26.23 " 4.881" 1.230& 0.037& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.113$ 22.30 " 5.536" 1.182& 0.031& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.802$ 17.75 " 6.741" 1.125& 0.008& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.109# 13.91 " 5.678" 1.089& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.289# 11.39 " 4.785" 1.115& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.859# 10.27 " 4.103" 1.011& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.658# 10.23 " 3.732" 0.911& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.522# 10.88 " 3.496" 0.941& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.473# 13.75 " 3.433" 0.985& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.497# 24.33 " 3.246# 0.933& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.364# 26.26 " 3.151# 0.875& 0.000& 13
14 0.041& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.211# 23.70 " 3.098# 0.772& 0.000& 14
15 0.043& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.122# 18.49 " 3.049# 0.680& 0.000& 15
16 0.003& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.779" 14.87 " 2.925# 0.613& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.229" 12.88 " 2.683# 0.532& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.385" 12.88 " 2.555# 0.483& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.009" 13.91 " 2.477# 0.439& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.32 " 13.31 " 2.343# 0.403& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.14 " 14.45 " 2.240# 0.344& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 67.80 " 15.21 " 2.179# 0.289& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 138.6 " 12.81 " 1.988$ 0.245& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 76.08 " 10.72 " 1.777$ 0.170& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 44.03 " 9.707" 1.703$ 0.237& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29.23 " 8.725" 1.662$ 0.242& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.68 " 7.879" 1.555$ 0.228& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.39 " 7.037" 1.533$ 0.275& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.56 " 6.398" 1.513$ 0.418& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.09 " 5.848" 1.476$ 0.373& 0.000& 30
31 0.000& 0.000& 0.000& 0.000& 12.68 " 1.407$ 0.000& 31
Mean 0.003& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.43 & 14.95 " 3.135$ 0.693& 0.011&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.779& 13.53 " 2.925$ 0.646& 0.000&
Maximum 0.043& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 138.6 & 29.67 " 6.741$ 1.352& 0.224&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.848" 1.407$ 0.170& 0.000&
Total 0.087& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 540.4 & 448.5 " 97.19 $ 20.80 & 0.339&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3.034& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1107 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 138.6 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 121.2 " 42.57 " 14.91 " 3.281# 0.377& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 86.67 " 33.24 " 13.45 " 2.921# 0.435& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 48.28 " 28.73 " 11.89 " 2.606# 0.230& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 35.59 " 24.89 " 10.74 " 2.370# 0.169& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28.35 " 21.95 " 9.852" 2.209# 0.243& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30.81 " 19.92 " 9.143" 2.086# 0.462& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 45.74 " 18.97 " 8.413" 1.983# 0.363& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 33.97 " 31.22 " 13.58 " 1.874$ 0.180& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30.35 " 29.10 " 33.57 " 1.766$ 0.006& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 35.56 " 25.15 " 22.07 " 1.618$ 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 67.42 " 22.35 " 17.04 " 1.475$ 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 47.48 " 35.31 " 13.40 " 1.409$ 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 39.08 " 78.86 " 11.27 " 1.320& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30.91 " 68.53 " 9.625" 1.143& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 25.22 " 80.01 " 8.240" 1.032& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.32 " 61.45 " 7.387" 0.894& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.72 " 52.87 " 6.688" 0.821& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.81 " 41.57 " 5.985" 0.746& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.37 " 34.10 " 5.730" 0.627& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.073& 20.24 " 29.88 " 5.453" 0.554& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.208# 27.96 " 25.88 " 4.940" 0.504& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.65 " 39.55 " 23.05 " 4.424" 0.407& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.55 " 56.04 " 21.41 " 3.954" 0.281& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.59 " 50.15 " 21.42 " 3.726" 0.279& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 32.86 " 44.53 " 26.59 " 3.499" 0.308& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30.39 " 39.87 " 23.57 " 3.312# 0.310& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.05 " 56.87 " 22.45 " 3.863" 0.278& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 40.02 " 44.05 " 20.52 " 4.771" 0.281& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 35.83 " 40.36 " 18.31 " 4.904" 0.246& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 58.28 " 61.14 " 16.57 " 4.351" 0.253& 0.000& 30
31 0.000& 0.000& 0.000& 145.5 " 50.43 " 3.721" 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.58 & 42.26 " 33.35 " 9.159# 1.196& 0.079&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 39.55 " 26.23 " 7.387# 0.963& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 145.5 & 121.2 " 80.01 " 33.57 # 3.281& 0.462&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.37 " 16.57 " 3.312# 0.246& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 421.0 &1310 "1000 " 283.9 # 35.88 & 2.464&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 8.366& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 3054 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 145.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 166.7 " 4.580" 6.815" 14.60 " 2.315# 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 145.8 " 4.471" 6.372" 10.14 " 2.094# 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 102.9 " 4.370" 5.763" 7.716" 1.956# 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 73.82 " 4.175" 5.458" 6.583" 1.822$ 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 56.24 " 3.949" 4.819" 5.880" 1.621$ 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 43.43 " 3.792" 4.280" 5.523" 1.487$ 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 35.13 " 3.677" 4.038" 5.321" 1.349$ 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30.20 " 3.531" 3.795" 5.176" 1.216& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.28 " 3.828" 3.604" 4.787" 1.165& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.94 " 4.201" 3.384" 4.271" 1.091& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.36 " 4.113" 3.204# 3.765" 0.978& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.031& 17.87 " 4.018" 3.009# 3.323# 0.852& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.735$ 15.92 " 4.130" 2.797# 2.955# 0.736& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.684$ 14.14 " 4.300" 2.689# 2.651# 0.717& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.818# 12.67 " 4.929" 2.626# 2.371# 0.750& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.19 " 11.33 " 4.689" 2.550# 2.148# 0.797& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.342" 10.17 " 4.558" 2.430# 1.991# 0.764& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 39.46 " 9.433" 5.159" 2.296# 1.896# 0.675& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 65.31 " 8.848" 6.352" 2.264# 1.877$ 0.595& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 51.60 " 8.358" 5.493" 2.296# 1.881$ 0.538& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.63 " 7.777" 5.542" 2.228# 1.767$ 0.433& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.72 " 7.367" 5.720" 2.098# 1.764$ 0.278& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.12 " 7.207" 5.855" 1.937# 2.169$ 0.104& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29.45 " 7.097" 5.532" 1.985# 2.454# 0.001& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 25.00 " 6.674" 5.761" 2.811# 3.128# 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 38.96 " 6.268" 12.20 " 4.124# 4.168" 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 36.46 " 6.068" 12.47 " 5.630" 4.303" 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 47.44 " 5.853" 10.54 " 5.396" 3.458# 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 72.59 " 5.618" 9.520" 10.45 " 2.947# 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 342.0 # 5.122" 7.975" 29.78 " 2.579# 0.000& 30
31 0.000& 0.000& 0.000& 266.8 # 4.792" 22.04 " 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 35.98 & 29.11 " 5.648" 5.257# 4.120$ 0.785&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.342& 11.33 " 4.634" 3.384# 3.226$ 0.736&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 342.0 & 166.7 " 12.47 " 29.78 # 14.60 $ 2.315&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.792" 3.531" 1.937# 1.764$ 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&1115 & 902.4 " 169.4 " 163.0 # 123.6 $ 24.34 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 6.825& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 2498 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 342.0 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 17.67 " 29.12 " 19.41 " 2.310# 0.361& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.189& 15.61 " 27.53 " 17.02 " 2.106# 0.319& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.486" 13.79 " 24.83 " 15.52 " 1.984# 0.272& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.334" 12.40 " 22.30 " 14.12 " 1.848$ 0.292& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.312# 11.34 " 26.09 " 12.79 " 1.729$ 0.256& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.667# 11.20 " 28.71 " 11.60 " 1.661$ 0.155& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.535# 11.73 " 24.91 " 10.58 " 1.520$ 0.007& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.356# 10.98 " 24.88 " 9.843" 1.380$ 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.722# 10.05 " 22.95 " 9.214" 1.269& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.21 " 10.36 " 25.52 " 8.582" 1.209& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 42.31 " 10.65 " 84.02 " 7.863" 1.099& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 33.83 " 11.17 " 231.5 # 7.259" 1.080& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.98 " 11.62 " 144.5 " 6.805" 1.008& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.95 " 33.96 " 101.8 " 6.377" 0.873& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.87 " 156.6 " 83.54 " 5.927" 0.793& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.241" 148.2 " 76.90 " 5.446" 0.772& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.68 " 103.8 " 59.31 " 4.968" 0.747& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.78 " 74.27 " 55.80 " 4.525" 1.071& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 69.50 " 191.8 " 48.66 " 4.079" 1.726$ 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 227.6 # 154.5 " 41.76 " 3.675" 1.648$ 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 315.9 # 224.9 # 52.99 " 3.411" 1.434$ 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 182.3 # 165.6 " 59.33 " 3.159# 1.302& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 118.0 " 126.3 " 46.36 " 2.901# 1.161& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 80.99 " 91.10 " 39.75 " 2.679# 1.035& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 61.94 " 70.83 " 33.55 " 2.542# 0.884& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 47.41 " 57.95 " 29.24 " 2.572# 0.702& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 36.46 " 47.64 " 26.05 " 2.773# 0.603& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30.54 " 40.54 " 23.42 " 2.854# 0.531& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 26.07 " 39.83 " 21.85 " 2.820# 0.499& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 22.59 " 34.35 " 21.46 " 2.769# 0.416& 0.000& 30
31 0.000& 0.000& 0.000& 20.00 " 31.88 " 2.656# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 46.70 & 62.99 # 51.29 # 6.992# 1.213& 0.054&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21.21 & 34.35 # 31.40 # 5.446# 1.130& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 315.9 & 224.9 # 231.5 # 19.41 # 2.310& 0.361&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.05 # 21.46 # 2.542# 0.416& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&1448 &1953 #1539 # 216.7 # 36.40 & 1.662&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 14.23 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 5194 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 315.9 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 0.000& 0.000& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 0.000& & ... Relative Uncertainty +/-30%
Ann. Median 0.000&
Annual Total 0.000&
Maximum Minimum
Daily 0.000& 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 29.95 " 9.079" 8.249" 2.773# 0.170& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 58.73 " 17.75 " 7.498" 2.305# 0.139& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 80.62 " 26.80 " 6.522" 2.104# 0.084& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 50.38 " 19.31 " 5.563" 2.058# 0.067& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 34.22 " 14.91 " 4.796" 1.955# 0.036& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.48 " 12.51 " 4.228" 1.931$ 0.323& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.16 " 10.29 " 3.735" 2.086# 0.432& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.13 " 8.611" 3.353# 2.432# 0.315& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.96 " 7.440" 2.942# 3.208# 0.206& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.796" 6.612" 2.617# 2.952# 0.065& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.255" 5.972" 2.539# 2.292# 0.003& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.155" 5.378" 2.587# 1.845$ 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.376" 4.738" 2.733# 1.589$ 0.015& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.425" 4.247" 2.544# 1.391$ 0.002& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.831" 3.894" 2.182# 1.232& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.49 " 4.243" 1.997# 1.183& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.72 " 6.103" 1.834$ 1.188& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.49 " 7.618" 1.828$ 1.054& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.22 " 15.84 " 1.690$ 0.914& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.575" 12.21 " 1.592$ 0.796& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.059" 9.746" 1.556$ 0.692& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 47.11 " 12.92 " 1.572$ 0.584& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 69.62 " 12.39 " 1.510$ 0.559& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 49.66 " 9.517" 1.387$ 0.552& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 35.48 " 8.090" 2.263$ 0.543& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.25 " 7.863" 8.395" 0.442& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.67 " 11.40 " 10.06 " 0.396& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.87 " 13.78 " 8.046" 0.349& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.90 " 12.61 " 6.740" 0.278& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.77 " 9.578" 5.006" 0.198& 0.000& 30
31 0.000& 0.000& 0.000& 10.53 & 10.17 " 3.616# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.340& 23.98 " 10.38 " 3.909$ 1.396& 0.060&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.87 " 9.547" 2.733$ 1.210& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.53 & 80.62 " 26.80 " 10.06 $ 3.208& 0.432&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.376" 3.894" 1.387$ 0.198& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.53 & 743.5 " 311.4 " 121.2 $ 41.88 & 1.858&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3.371& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1230 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 80.62 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 0.000& 1.244& 0.000& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.909& 0.000& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.632& 0.000& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.483& 0.000& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.62 & 0.397& 0.000& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.86 " 0.383& 0.000& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.166" 0.357& 0.000& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.815" 0.323& 0.000& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.315" 0.328& 0.000& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.288# 0.381& 0.000& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.515# 0.437& 0.000& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.863$ 0.453& 0.000& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.474$ 0.473& 0.000& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.253& 0.507& 0.000& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.014& 0.400& 0.000& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.826& 0.321& 0.000& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.756& 0.319& 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.643& 0.228& 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.541& 0.163& 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.521& 0.092& 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.576& 0.052& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.584& 0.038& 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.610& 0.008& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.721& 0.000& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.774& 0.000& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.827& 0.000& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.134& 0.000& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.479& 0.000& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.967$ 0.000& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.640$ 0.000& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.193& 0.288& 0.000& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.920& 0.321& 0.000& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.86 & 1.244& 0.000& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 65.78 & 8.928& 0.000& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 0.204& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 74.71 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 11.86 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 19.56 " 0.972& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.39 " 0.812& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.98 " 0.822& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.592& 11.85 " 0.682& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.925" 10.47 " 0.575& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.961# 9.515" 0.500& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.976# 8.482" 0.414& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.957" 7.529" 0.351& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.074" 7.481" 0.296& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.537" 8.175" 0.225& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.99 " 8.153" 0.148& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 56.77 " 6.763" 0.104& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 48.00 " 5.635" 0.084& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 139.4 " 5.263" 0.058& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 94.11 " 4.716" 0.012& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 66.72 " 4.186" 0.001& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 92.43 " 3.721" 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 67.31 " 3.404# 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 54.70 " 3.209# 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 42.83 " 3.284# 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 35.52 " 3.268# 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 58.87 " 3.170# 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 143.9 " 2.713# 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 107.0 " 2.368# 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 79.03 " 2.110# 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 55.33 " 1.930$ 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 40.32 " 1.755$ 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.73 " 1.563$ 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.98 " 1.419$ 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.48 " 1.297& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 0.000& 0.000& 1.142& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 43.82 & 5.952& 0.202& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 37.92 & 4.186& 0.006& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 143.9 & 19.56 & 0.972& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.142& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&1314 & 184.5 & 6.055& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4.123& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1505 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 143.9 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 3.487" 21.16 " 5.398" 0.452& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.317# 17.97 " 4.671" 0.412& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.350$ 14.08 " 4.003" 0.339& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.475$ 10.81 " 3.485" 0.285& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.313$ 8.970" 3.399" 0.244& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.218& 7.999" 3.326" 0.241& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.189& 8.492" 3.472" 0.202& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.220& 27.52 " 3.156# 0.129& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.178& 48.61 " 2.698# 0.112& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.167& 32.55 " 2.289# 0.112& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.076& 26.14 " 2.068# 0.069& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.909& 20.24 " 1.854$ 0.024& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.781& 15.89 " 1.642$ 0.002& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.696& 12.31 " 1.425$ 0.000& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.705& 9.924" 1.271& 0.000& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.778& 8.481" 1.159& 0.000& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.775& 7.324" 1.010& 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.028& 6.223" 0.968& 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.582$ 5.131" 0.946& 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.919# 4.397" 0.893& 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.517" 4.226" 0.860& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.613" 5.851" 1.201& 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.215" 6.141" 1.251& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.671" 5.583" 1.138& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.927# 4.670" 1.017& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.450# 4.023" 0.919& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.177# 4.965" 0.781& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.985$ 8.114" 0.719& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.359& 2.523$ 8.229" 0.670& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 2.848# 35.07 " 6.672" 0.642& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 3.025# 31.21 " 0.551& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.201& 4.081& 12.42 " 1.899& 0.087& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.985& 8.355" 1.251& 0.000& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.025& 35.07 & 48.61 " 5.398& 0.452& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.696& 4.023" 0.551& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.232& 126.5 & 372.7 " 58.88 & 2.623& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1.553& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 567.0 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 48.61 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 0.000& & ... Relative Uncertainty +/-30%
Ann. Median 0.000&
Annual Total 0.000&
Maximum Minimum
Daily 0.000& 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 0.000& 1.482& 20.41 " 4.988" 0.764& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.841& 16.62 " 5.219" 0.701& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.645& 13.46 " 5.430" 0.582& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.759& 11.58 " 5.220" 0.549& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.985& 10.16 " 4.812" 0.491& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.083& 9.009" 4.275" 0.421& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.411& 9.741" 3.824" 0.358& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.991$ 16.71 " 4.421" 0.337& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.79 " 16.94 " 9.937" 0.308& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.52 " 13.01 " 10.07 " 0.284& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.31 " 11.75 " 7.165" 0.229& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.32 " 9.454" 5.780" 0.169& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.823" 7.906" 4.851" 0.203& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.143" 6.804" 4.201" 0.348& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.026" 6.337" 3.516# 0.239& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.617" 5.849" 2.991# 0.237& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.501& 11.84 " 5.056" 2.707# 0.094& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.118# 42.88 " 4.908" 2.531# 0.124& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.667$ 29.46 " 6.766" 2.394# 0.129& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.080& 27.28 " 7.492" 2.148# 0.051& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 6.475& 0.000& 1.630& 24.33 " 6.175" 1.880$ 0.002& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.425& 0.000& 3.160# 23.40 " 5.324" 1.748$ 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.769$ 18.25 " 5.066" 1.672$ 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.578& 0.000& 1.162& 14.04 " 5.042" 1.549$ 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.500& 0.000& 0.798& 12.30 " 4.984" 1.435$ 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.593& 10.86 " 4.661" 1.317$ 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.498& 41.05 " 4.647" 1.196& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.424& 55.70 " 5.335" 1.140& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.389& 34.54 " 5.495" 1.080& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.690& 28.50 " 5.158" 0.935& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 1.124& 23.53 " 0.855& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.257& 0.000& 0.697& 15.89 & 8.729" 3.590& 0.221& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.30 & 6.785" 2.991& 0.186& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 6.475& 0.000& 3.501& 55.70 & 20.41 " 10.07 & 0.764& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.645& 4.647" 0.855& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 7.977& 0.000& 21.60 & 492.7 & 261.9 " 111.3 & 6.621& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2.465& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 902.0 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 55.70 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 27.53 " 17.97 " 11.25 " 1.129& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.79 " 21.20 " 9.345" 0.965& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.12 " 16.01 " 7.677" 0.823& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.353" 14.10 " 6.180" 0.660& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.363" 11.88 " 5.123" 0.529& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.848" 10.26 " 4.607" 0.433& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.958" 9.031" 4.169" 0.376& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.959" 8.094" 3.667" 0.322& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 55.79 " 7.400" 3.329# 0.264& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 67.41 " 6.750" 3.105# 0.176& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 46.36 " 6.355" 2.750# 0.125& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 89.76 " 5.806" 2.456# 0.094& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 106.1 " 5.040" 2.300# 0.058& 0.000& 13
14 0.000& 5.091& 0.000& 0.000& 0.000& 0.000& 0.000& 236.2 # 4.751" 2.249# 0.023& 0.000& 14
15 0.000& 4.155# 0.000& 0.000& 0.000& 0.000& 0.000& 317.2 # 4.477" 2.191# 0.015& 0.000& 15
16 0.000& 2.341$ 0.000& 0.000& 0.000& 0.000& 0.000& 154.8 " 3.990" 2.068# 0.016& 0.000& 16
17 0.000& 1.252& 0.000& 0.000& 0.000& 0.000& 0.000& 94.72 " 3.537" 2.169# 0.030& 0.000& 17
18 0.000& 0.520& 0.000& 0.000& 0.000& 0.000& 0.000& 66.63 " 3.310# 2.508# 0.016& 0.000& 18
19 0.000& 0.154& 0.000& 0.000& 0.000& 0.000& 0.000& 57.50 " 3.211# 3.165# 0.000& 0.000& 19
20 0.000& 0.033& 0.000& 0.000& 0.000& 0.000& 0.000& 48.66 " 3.199# 2.477# 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 37.24 " 3.364# 2.055# 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.87 " 5.766" 3.393# 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.39 " 11.00 " 6.804" 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.26 " 10.81 " 4.314" 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.35 " 15.27 " 2.893# 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.75 " 15.92 " 2.405# 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.61 " 11.56 " 2.092# 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.65 " 14.81 " 1.929$ 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.43 " 23.35 " 1.745$ 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.66 " 14.74 " 1.516$ 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 3.424& 10.39 " 1.331$ 0.000& 31
Mean 0.000& 0.484& 0.000& 0.000& 0.000& 0.000& 0.110& 52.96 # 9.766# 3.654$ 0.202& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.39 # 8.563# 2.750$ 0.019& 0.000&
Maximum 0.000& 5.091& 0.000& 0.000& 0.000& 0.000& 3.424& 317.2 # 23.35 # 11.25 $ 1.129& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.958# 3.199# 1.331$ 0.000& 0.000&
Total 0.000& 13.55 & 0.000& 0.000& 0.000& 0.000& 3.424&1642 # 293.0 # 113.3 $ 6.053& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 5.674& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 2071 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 317.2 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 1.267& 52.95 " 39.99 " 3.757" 1.514$ 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.994$ 138.0 " 31.13 " 3.589" 1.361$ 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.739$ 145.6 # 26.38 " 3.428" 1.293& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.944$ 404.1 # 23.74 " 4.327" 1.221& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.144" 327.7 # 24.04 " 4.586" 1.163& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.109" 165.6 " 22.44 " 4.601" 1.009& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 1.921& 15.76 " 107.0 " 21.40 " 4.166" 0.943& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.520& 10.47 " 83.16 " 20.49 " 4.210" 0.890& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.276& 7.391" 184.1 # 19.08 " 3.847" 0.809& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 11.58 & 5.619" 270.3 # 17.89 " 3.736" 0.730& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 1.306& 4.507" 191.5 # 16.95 " 4.669" 0.631& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.753& 3.831" 113.2 " 15.83 " 4.337" 0.526& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.740& 3.921" 81.50 " 15.19 " 4.100" 0.473& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.696& 3.941" 93.24 " 14.00 " 4.309" 0.403& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.794& 7.294" 93.35 " 12.16 " 4.515" 0.339& 0.000& 15
16 2.607& 0.000& 0.000& 0.000& 0.000& 0.865& 10.03 " 76.41 " 11.16 " 4.596" 0.312& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 1.046& 11.89 " 60.53 " 10.05 " 4.650" 0.284& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 2.105& 11.33 " 48.71 " 9.033" 4.564" 0.228& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.603& 9.295" 40.22 " 8.389" 3.735" 0.164& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.419& 7.846" 34.77 " 7.983" 3.305# 0.144& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.946& 12.86 " 32.46 " 7.475" 3.246# 0.169& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 1.092& 35.06 " 35.18 " 6.882" 2.995# 0.259& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.948& 40.67 " 31.79 " 6.293" 2.824# 0.108& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.789& 35.65 " 28.18 " 5.794" 2.735# 0.050& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.914& 44.02 " 25.08 " 5.361" 2.520# 0.041& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.715& 1.200& 120.6 " 22.02 " 5.007" 2.311# 0.021& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.028& 2.068$ 91.13 " 19.72 " 4.638" 2.127# 0.015& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 1.676& 61.26 " 27.97 " 4.259" 2.025# 0.017& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.936& 39.77 " 76.89 " 4.264" 1.906$ 0.005& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 1.040& 31.62 " 76.29 " 4.288" 1.772$ 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 25.97 " 57.77 " 1.687$ 0.000& 31
Mean 0.084& 0.000& 0.000& 0.000& 0.024& 1.175& 21.96 & 101.5 # 14.05 " 3.522$ 0.504& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.830& 10.03 & 76.41 # 11.66 " 3.736$ 0.326& 0.000&
Maximum 2.607& 0.000& 0.000& 0.000& 0.715& 11.58 & 120.6 & 404.1 # 39.99 " 4.669$ 1.514& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.267& 19.72 # 4.259" 1.687$ 0.000& 0.000&
Total 2.607& 0.000& 0.000& 0.000& 0.743& 35.24 & 680.9 &3145 # 421.6 " 109.2 $ 15.12 & 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 12.08 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 4411 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 404.1 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 1.427& 4.777" 91.60 " 2.679# 0.895& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.781# 4.326" 112.4 " 2.494# 0.918& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.237# 4.003" 81.40 " 2.417# 0.890& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.536# 3.651" 61.27 " 2.479# 0.997& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 41.69 " 3.979" 44.21 " 2.400# 1.073& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 43.37 " 4.656" 33.75 " 2.121# 0.990& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.89 " 4.132" 27.39 " 1.951# 0.830& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 19.28 " 4.045" 22.59 " 1.971# 0.630& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.88 " 4.961" 19.50 " 1.893$ 0.544& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.237" 4.405" 16.81 " 1.787$ 0.454& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.168" 3.924" 14.08 " 1.797$ 0.355& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.760" 3.533" 12.03 " 1.777$ 0.247& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.721" 3.443" 10.54 " 1.707$ 0.189& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.991" 5.334" 9.414" 1.666$ 0.151& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.483" 12.88 " 8.490" 1.538$ 0.087& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.124# 26.04 " 7.724" 1.444$ 0.088& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.923# 47.76 " 7.146" 1.398$ 0.017& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.765# 42.27 " 6.710" 1.357$ 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.836# 32.27 " 7.446" 1.274& 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.76 " 21.64 " 7.455" 1.176& 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.43 " 16.56 " 6.599" 1.039& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 22.60 " 13.44 " 5.651" 0.966& 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.68 " 16.31 " 5.478" 0.930& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.77 " 16.99 " 5.134" 0.840& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.49 " 16.02 " 4.570" 0.735& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.552" 14.12 " 4.098" 0.664& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.545" 11.95 " 3.712" 0.613& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.402" 10.21 " 3.394# 0.547& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 7.035" 9.460" 3.141# 0.489& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 6.269" 39.06 " 2.949# 0.552& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 5.560" 85.52 " 0.835& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.36 & 15.86 " 21.56 # 1.469& 0.312& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.168& 10.21 " 8.107# 1.444& 0.088& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 43.37 & 85.52 " 112.4 # 2.679& 1.073& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.427& 3.443" 2.949# 0.489& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 352.2 & 491.6 " 646.7 # 45.54 & 9.354& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4.234& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1545 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 112.4 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 2.477$ 1.642$ 0.182& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.255" 1.583$ 0.233& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.495" 1.449$ 0.061& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.424# 1.303& 0.001& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.897# 1.176& 0.000& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.850# 1.113& 0.000& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.45 " 1.104& 0.000& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.25 " 1.111& 0.000& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.24 " 0.993& 0.187& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.357& 9.540" 0.923& 0.220& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.940" 7.376" 0.802& 0.067& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.612" 5.735" 0.727& 0.031& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.867" 4.576" 0.645& 0.085& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.375# 3.884" 0.553& 0.252& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.836# 3.434# 0.464& 0.439& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.001# 2.950# 0.414& 0.394& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.76 " 2.493# 0.366& 0.385& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.09 " 2.267# 0.346& 0.354& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.479" 2.184# 0.295& 0.338& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.203" 2.192# 0.254& 0.352& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.696" 2.290# 0.230& 0.314& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.434" 2.245# 0.200& 0.319& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.203" 1.988# 0.154& 0.284& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.212" 1.856$ 0.124& 0.180& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.448# 1.665$ 0.159& 0.075& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.852# 1.560$ 0.147& 0.004& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.471# 1.569$ 0.092& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.333# 1.548$ 0.030& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.982$ 1.605$ 0.000& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.714$ 1.716$ 0.000& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 0.000& 1.639$ 0.000& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.855& 4.200$ 0.594& 0.159& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.836& 2.671$ 0.414& 0.133& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.76 & 15.25 $ 1.642& 0.439& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.548$ 0.000& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 119.5 & 126.0 $ 18.40 & 4.756& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 0.734& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 268.7 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 15.25 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 349.8 # 16.79 " 8.616" 9.896" 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 343.3 # 23.99 " 15.36 " 7.928" 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 196.5 # 29.80 " 18.01 " 6.708" 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.550& 125.9 " 28.99 " 14.52 " 5.955" 0.000& 4
5 0.000& 0.000& 12.43 & 0.000& 0.000& 0.000& 6.441" 94.37 " 23.59 " 12.20 " 5.223" 0.000& 5
6 0.000& 0.000& 3.973$ 0.000& 0.000& 0.000& 7.861" 75.48 " 18.84 " 10.40 " 4.573" 0.000& 6
7 0.000& 0.000& 0.814& 0.000& 0.000& 0.000& 33.33 " 64.48 " 15.73 " 8.967" 4.128" 0.000& 7
8 0.000& 0.000& 0.056& 0.000& 0.000& 0.000& 27.83 " 62.62 " 13.39 " 7.927" 3.682" 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 32.05 " 78.20 " 12.57 " 7.001" 3.192# 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 57.34 " 222.3 # 16.05 " 6.370" 2.840# 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 49.69 " 303.0 # 17.48 " 6.199" 2.595# 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 68.25 " 174.9 " 18.30 " 5.931" 2.398# 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 185.6 # 114.0 " 16.93 " 5.340" 2.238# 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 261.7 # 87.61 " 14.10 " 5.171" 2.042# 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 170.0 " 68.47 " 12.05 " 4.895" 1.893$ 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 111.0 " 56.24 " 20.49 " 4.622" 1.644$ 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 72.66 " 48.12 " 35.20 " 4.224" 1.463$ 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 54.27 " 42.19 " 29.83 " 3.921" 1.284& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 48.04 " 37.12 " 24.95 " 4.635" 1.100& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 50.50 " 40.25 " 19.19 " 19.30 " 0.907& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 310.0 # 38.02 " 15.41 " 23.31 " 0.722& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 228.9 # 34.04 " 12.82 " 18.65 " 0.561& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 114.5 " 30.89 " 10.95 " 14.33 " 0.431& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 76.06 " 27.36 " 9.501" 11.07 " 0.322& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 58.72 " 24.09 " 8.722" 9.137" 0.222& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 57.13 " 21.77 " 8.352" 7.981" 0.123& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 331.8 # 19.69 " 7.945" 15.60 " 0.040& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 305.5 # 18.01 " 7.507" 26.04 " 0.007& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 201.0 " 17.18 " 7.190" 19.36 " 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 318.2 # 16.65 " 7.177" 15.70 " 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 289.1 # 16.09 " 12.58 " 0.000& 31
Mean 0.000& 0.000& 0.557& 0.000& 0.000& 0.000& 113.8 & 91.89 # 16.79 " 11.21 " 2.471& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 58.72 & 56.24 # 15.89 " 9.137" 1.768& 0.000&
Maximum 0.000& 0.000& 12.43 & 0.000& 0.000& 0.000& 331.8 & 349.8 # 35.20 " 26.04 " 9.896& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.09 # 7.177" 3.921" 0.000& 0.000&
Total 0.000& 0.000& 17.27 & 0.000& 0.000& 0.000&3529 &2849 # 503.8 " 347.4 " 74.12 & 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 20.06 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 7320 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 349.8 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 55.79 " 21.65 " 7.410" 2.478# 0.220& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 156.7 # 19.60 " 6.757" 2.432# 0.166& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 334.3 # 19.86 " 6.277" 2.357# 0.091& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 272.3 # 24.59 " 5.921" 2.202# 0.016& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 148.5 " 41.44 " 5.796" 2.046# 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 99.23 " 63.16 " 5.385" 2.001# 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 75.81 " 53.91 " 4.978" 1.945$ 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 75.33 " 38.16 " 4.679" 1.843$ 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 197.7 # 31.68 " 4.456" 1.845$ 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 221.2 # 26.39 " 4.349" 1.923$ 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 130.1 " 22.31 " 4.138" 1.859$ 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 83.41 " 19.83 " 3.860" 1.697$ 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 73.35 " 30.94 " 3.590" 1.563$ 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 103.0 " 61.52 " 3.493" 1.427$ 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 84.54 " 46.23 " 3.378" 1.337& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 338.7 # 39.65 " 3.222# 1.294& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 685.2 # 30.28 " 3.057# 1.268& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 507.9 # 25.58 " 2.874# 1.656$ 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 250.8 # 24.79 " 2.832# 1.626$ 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 156.4 " 26.56 " 2.753# 1.525$ 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 113.9 " 22.47 " 2.677# 1.479$ 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 86.71 " 20.36 " 2.649# 1.315& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.161& 68.16 " 18.00 " 2.805# 1.295& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 10.98 " 57.95 " 16.15 " 3.734# 1.119& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.947" 48.90 " 14.00 " 3.760" 0.939& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.130" 41.72 " 12.35 " 3.703" 0.725& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.464" 36.63 " 11.14 " 3.338# 0.607& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.602" 33.36 " 10.16 " 3.301# 0.488& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 29.86 " 29.73 " 9.080" 3.153# 0.392& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 36.40 " 27.07 " 8.060" 3.036# 0.282& 0.000& 30
31 0.000& 0.000& 0.000& 26.78 " 24.26 " 2.652# 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.301& 149.0 # 27.00 " 4.000# 1.499& 0.016&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 86.71 # 23.53 " 3.590# 1.544& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 36.40 & 685.2 # 63.16 " 7.410# 2.478& 0.220&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 24.26 # 8.060" 2.649# 0.282& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 133.3 &4619 # 809.9 " 124.0 # 44.97 & 0.492&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 15.70 & " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 5732 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 685.2 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 6.138" 2.163# 1.877$ 0.000& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.886" 2.306# 1.796$ 0.000& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.404" 2.665# 1.610$ 0.000& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.320# 2.907# 1.485$ 0.000& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.053# 2.922# 1.445$ 0.000& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.919# 3.458# 1.413$ 0.000& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.806# 3.680" 1.326$ 0.000& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.786# 3.974" 1.225& 0.000& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.169# 3.490# 1.112& 0.000& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.963# 3.036# 1.006& 0.000& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.793# 2.728# 0.940& 0.000& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.743" 2.615# 0.813& 0.000& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.232" 4.186# 0.720& 0.000& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.833" 20.77 " 0.607& 0.000& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.243" 15.31 " 0.519& 0.000& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.753" 15.90 " 0.447& 0.000& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.832" 12.23 " 0.387& 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.496" 9.049" 0.321& 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.511" 7.323" 0.254& 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.702" 6.048" 0.200& 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.723" 5.154" 0.180& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.760" 4.435" 0.170& 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.120" 3.713" 0.121& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.550" 3.206# 0.082& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.175# 2.918# 0.055& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.921# 2.551# 0.027& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.771# 2.323# 0.011& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 1.620& 2.557# 2.204# 0.001& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 4.832# 2.343# 2.084# 0.000& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 7.635" 2.186# 1.945# 0.000& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 6.510" 2.130# 0.000& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.664& 4.252# 5.243# 0.650& 0.000& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.743# 3.332# 0.447& 0.000& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.635& 8.832# 20.77 # 1.877& 0.000& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.130# 1.945# 0.000& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.60 & 131.8 # 157.3 # 20.15 & 0.000& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 0.904& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 329.9 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 20.77 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 21.52 " 2.266# 0.282& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 18.86 " 2.556# 0.217& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.44 " 8.582" 0.189& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 14.85 " 14.81 " 0.165& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 45.55 " 14.00 " 0.108& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 70.29 " 10.88 " 0.068& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 62.40 " 8.669" 0.042& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.42 & 42.13 " 6.692" 0.061& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 9.541& 32.12 " 5.134" 0.033& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.124& 26.03 " 3.978" 0.013& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.657& 20.85 " 3.312# 0.006& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.618& 17.33 " 2.807# 0.001& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.432& 14.71 " 2.405# 0.000& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.531& 12.31 " 2.135# 0.000& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 16.11 & 10.22 " 1.948# 0.000& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.79 & 8.795" 1.852$ 0.000& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 8.238" 7.895" 1.695$ 0.000& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 39.94 " 6.884" 1.533$ 0.000& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 53.07 " 5.911" 1.420$ 0.000& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 39.13 " 5.209" 1.385$ 0.000& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.01 " 4.592" 1.272& 0.000& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28.92 " 4.084" 1.191& 0.000& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 58.54 " 3.683" 1.072& 0.000& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 81.80 " 3.285# 1.037& 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 79.61 " 2.915# 0.961& 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 58.38 " 2.753# 0.800& 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 42.18 " 2.676# 0.665& 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 32.43 " 2.498# 0.556& 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.07 " 2.308# 0.449& 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 27.38 " 2.235# 0.360& 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 0.000& 26.34 " 0.309& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 23.14 & 16.38 # 3.443& 0.040& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 13.42 & 9.508# 1.852& 0.000& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 81.80 & 70.29 # 14.81 & 0.282& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 2.235# 0.309& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 717.3 & 491.3 # 106.7 & 1.186& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3.597& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1317 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 81.80 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs 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& 0.000& 0.000& 25.62 " 5.498" 1.192& 0.000& 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 20.90 " 4.953" 1.059& 0.000& 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 17.81 " 4.510" 0.988& 0.000& 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.26 " 4.111" 0.894& 0.000& 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 15.08 " 3.975" 0.864& 0.000& 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28.73 " 3.810" 0.737& 0.000& 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 31.87 " 3.856" 0.603& 0.000& 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 38.82 " 3.514" 0.501& 0.000& 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 28.92 " 3.145# 0.424& 0.000& 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.014& 23.34 " 2.868# 0.336& 0.000& 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 7.867$ 19.37 " 2.647# 0.273& 0.000& 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.003$ 16.16 " 2.489# 0.228& 0.000& 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.909$ 13.99 " 2.368# 0.162& 0.000& 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 12.13 $ 34.17 " 2.281# 0.124& 0.000& 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 11.36 $ 73.80 " 2.122# 0.073& 0.000& 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.672" 47.78 " 1.958# 0.053& 0.000& 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 4.544" 40.20 " 1.857$ 0.043& 0.000& 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 3.458# 39.59 " 1.752$ 0.032& 0.000& 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 5.955# 31.68 " 1.697$ 0.050& 0.000& 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 41.21 " 26.60 " 1.748$ 0.023& 0.000& 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 39.62 " 22.14 " 2.234$ 0.012& 0.000& 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 32.54 " 18.19 " 2.361# 0.010& 0.000& 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.18 " 15.12 " 2.321# 0.004& 0.000& 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 26.59 " 12.74 " 2.126# 0.000& 0.000& 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 120.7 " 10.88 " 1.875$ 0.000& 0.000& 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 147.5 " 9.297" 1.722$ 0.000& 0.000& 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 102.6 " 8.173" 1.555$ 0.000& 0.000& 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 72.28 " 7.445" 1.484$ 0.000& 0.000& 28
29 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 50.55 " 6.814" 1.394$ 0.000& 0.000& 29
30 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 40.35 " 6.114" 1.329$ 0.000& 0.000& 30
31 0.000& 0.000& 0.000& 0.000& 31.70 " 1.257& 0.000& 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 25.60 & 23.55 " 2.607& 0.289& 0.000&
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.672& 20.13 " 2.281& 0.063& 0.000&
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 147.5 & 73.80 " 5.498& 1.192& 0.000&
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 6.114" 1.257& 0.000& 0.000&
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 793.7 & 706.6 " 80.82 & 8.683& 0.000&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4.356& " ... Relative Uncertainty +/-10%
Ann. Median 0.000& # ... Relative Uncertainty +/-15%
Annual Total 1590 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 147.5 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 13/07/2026
Site 616216 Helena River - Poison Lease Gs Year 2026
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.036& [ ] [ ] [ ] [ ] [ ] 1
2 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] 2
3 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] 3
4 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] 4
5 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] 5
6 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] 6
7 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] 7
8 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] 8
9 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] 9
10 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] 10
11 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] 11
12 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 12
13 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 13
14 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 14
15 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 15
16 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 16
17 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 17
18 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 18
19 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 19
20 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 20
21 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 21
22 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 22
23 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 23
24 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 24
25 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 25
26 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 26
27 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 27
28 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 28
29 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ] [ ] 29
30 0.000& 0.000& 0.000& 0.000& 0.039& [ ] [ ] [ ] [ ] [ ] [ ] 30
31 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] 31
Mean 0.000& 0.000& 0.000& 0.000& 0.000& 0.001& 0.003& [ ] [ ] [ ] [ ] [ ]
Median 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ]
Maximum 0.000& 0.000& 0.000& 0.000& 0.000& 0.039& 0.036& [ ] [ ] [ ] [ ] [ ]
Minimum 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& [ ] [ ] [ ] [ ] [ ]
Total 0.000& 0.000& 0.000& 0.000& 0.000& 0.039& 0.036& [ ] [ ] [ ] [ ] [ ]
Missing Days 0 0 0 0 0 0 20 31 30 31 30 31
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 0.000& & ... Relative Uncertainty +/-30%
Ann. Median 0.000& [ ... Not Available
Annual Total 0.075&
Missing Days 173
Maximum Minimum
Daily 0.039& 0.000&