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Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 [ ] [ ] [ ] [ ] [ ] [ ] 64.89 " 168.3 " 282.2 " 230.1 " 33.51 " 46.26 " 1
2 [ ] [ ] [ ] [ ] [ ] [ ] 65.93 " 170.5 " 269.6 " 232.3 " 31.47 " 46.94 " 2
3 [ ] [ ] [ ] [ ] [ ] [ ] 72.48 " 176.6 " 263.3 " 221.0 " 29.95 " 53.06 " 3
4 [ ] [ ] [ ] [ ] [ ] [ ] 80.70 " 188.7 " 247.7 " 204.0 " 28.42 " 134.1 " 4
5 [ ] [ ] [ ] [ ] [ ] [ ] 85.15 " 191.8 " 237.0 " 189.3 " 25.74 " 142.8 " 5
6 [ ] [ ] [ ] [ ] [ ] [ ] 87.27 " 200.8 " 236.0 " 177.7 " 23.57 " 119.9 " 6
7 [ ] [ ] [ ] [ ] [ ] [ ] 91.33 " 224.8 " 243.5 " 170.4 " 21.76 " 142.2 " 7
8 [ ] [ ] [ ] [ ] [ ] [ ] 98.03 " 247.1 " 244.5 " 163.9 " 19.85 " 186.9 " 8
9 [ ] [ ] [ ] [ ] [ ] [ ] 115.7 " 298.4 " 246.4 " 153.2 " 17.64 " 197.2 " 9
10 [ ] [ ] [ ] [ ] [ ] [ ] 120.1 " 361.7 " 258.7 " 138.3 " 15.75 " 186.4 " 10
11 [ ] [ ] [ ] [ ] [ ] [ ] 127.0 " 412.4 " 261.9 " 125.3 " 14.17 " 169.3 " 11
12 [ ] [ ] [ ] [ ] [ ] [ ] 149.6 " 444.5 " 260.7 " 115.0 " 12.47 " 153.2 " 12
13 [ ] [ ] [ ] [ ] [ ] [ ] 155.4 " 442.2 " 257.1 " 104.4 " 11.13 " 140.0 " 13
14 [ ] [ ] [ ] [ ] [ ] [ ] 148.6 " 446.6 " 249.0 " 95.68 " 10.72 " 127.4 " 14
15 [ ] [ ] [ ] [ ] [ ] [ ] 142.3 " 473.9 " 238.1 " 89.73 " 10.26 " 115.0 " 15
16 [ ] [ ] [ ] [ ] [ ] [ ] 140.3 " 481.9 " 227.9 " 81.70 " 9.659" 102.6 " 16
17 [ ] [ ] [ ] [ ] [ ] [ ] 147.3 " 473.8 " 218.9 " 74.43 " 9.125" 89.99 " 17
18 [ ] [ ] [ ] [ ] [ ] [ ] 158.9 " 443.3 " 209.0 " 68.48 " 8.680" 78.37 " 18
19 [ ] [ ] [ ] [ ] [ ] [ ] 168.3 " 455.8 " 197.9 " 63.25 " 14.25 " 68.95 " 19
20 [ ] [ ] [ ] [ ] [ ] [ ] 172.7 " 492.3 " 184.6 " 60.25 " 17.00 " 63.16 " 20
21 [ ] [ ] [ ] [ ] [ ] [ ] 175.4 " 478.7 " 169.3 " 57.39 " 14.45 " 60.63 " 21
22 [ ] [ ] [ ] [ ] [ ] 70.49 " 174.4 " 453.1 " 172.4 " 57.78 " 11.59 " 60.10 " 22
23 [ ] [ ] [ ] [ ] [ ] 68.60 " 172.1 " 436.2 " 197.8 " 57.02 " 10.61 " 58.72 " 23
24 [ ] [ ] [ ] [ ] [ ] 66.59 " 168.7 " 436.6 " 203.7 " 55.53 " 10.60 " 57.01 " 24
25 [ ] [ ] [ ] [ ] [ ] 64.59 " 165.4 " 437.4 " 202.0 " 52.09 " 10.02 " 54.48 " 25
26 [ ] [ ] [ ] [ ] [ ] 63.29 " 161.1 " 417.4 " 190.9 " 48.65 " 9.245" 50.96 " 26
27 [ ] [ ] [ ] [ ] [ ] 62.09 " 154.0 " 394.9 " 173.1 " 46.48 " 8.909" 47.91 " 27
28 [ ] [ ] [ ] [ ] [ ] 61.33 " 152.0 " 382.4 " 160.6 " 43.63 " 8.309" 43.30 " 28
29 [ ] [ ] [ ] [ ] 61.26 " 148.8 " 373.7 " 189.3 " 40.43 " 7.729" 39.91 " 29
30 [ ] [ ] [ ] [ ] 63.60 " 152.9 " 350.0 " 219.4 " 37.63 " 20.43 " 36.70 " 30
31 [ ] [ ] [ ] 162.5 " 304.3 " 35.71 " 33.97 " 31
Mean [ ] [ ] [ ] [ ] [ ] 64.65 " 134.8 " 363.2 " 223.8 " 106.2 " 15.90 " 93.79 "
Median [ ] [ ] [ ] [ ] [ ] 63.60 " 148.8 " 412.4 " 231.9 " 81.70 " 13.32 " 68.95 "
Maximum [ ] [ ] [ ] [ ] [ ] 70.49 " 175.4 " 492.3 " 282.2 " 232.3 " 33.51 " 197.2 "
Minimum [ ] [ ] [ ] [ ] [ ] 61.26 " 64.89 " 168.3 " 160.6 " 35.71 " 7.729" 33.97 "
Total [ ] [ ] [ ] [ ] [ ] 581.8 " 4179 "11260 " 6713 " 3291 " 477.0 " 2907 "
Missing Days 31 28 31 30 31 21 0 0 0 0 0 0
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 152.4 " " ... Relative Uncertainty +/-10%
Ann. Median 140.3 " [ ... Not Available
Annual Total 29409 "
Missing Days 172
Maximum Minimum
Daily 492.3 " 7.729"
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 31.48 " 0.392" 0.000" 0.000" 258.4 " 81.14 " 313.6 " 539.2 $ 521.6 $ 216.0 " 108.9 " 6.162" 1
2 28.37 " 0.271" 0.000" 0.000" 236.5 " 86.21 " 397.6 " 528.4 " 622.4 $ 202.6 " 120.1 " 5.293" 2
3 24.22 " 0.179" 0.000" 0.000" 220.8 " 93.53 " 446.8 " 511.3 " 697.1 $ 183.7 " 121.5 " 4.691" 3
4 21.46 " 0.128" 0.000" 0.000" 213.8 " 212.1 " 439.0 " 540.0 $ 795.8 $ 169.9 " 117.2 " 4.277" 4
5 18.69 " 0.087" 0.000" 0.000" 203.8 " 245.8 " 465.5 " 675.1 $ 971.9 $ 160.8 " 110.9 " 4.105" 5
6 15.94 " 0.061" 0.000" 0.000" 193.2 " 282.6 " 484.2 " 705.4 $ 867.8 $ 192.0 " 95.89 " 3.995" 6
7 14.46 " 0.034" 0.000" 0.000" 191.0 " 272.7 " 511.5 " 672.5 $ 717.3 $ 211.5 " 79.01 " 3.637" 7
8 13.09 " 0.015" 0.000" 0.000" 201.3 " 255.8 " 530.2 " 640.6 $ 632.6 $ 202.2 " 65.13 " 3.047" 8
9 11.45 " 0.006" 0.000" 0.000" 229.6 " 266.2 " 520.8 " 679.2 $ 569.1 $ 195.3 " 57.16 " 2.477" 9
10 10.35 " 0.002" 0.000" 0.000" 234.0 " 294.6 " 530.6 $ 804.1 $ 529.8 $ 185.8 " 51.37 " 2.184" 10
11 9.423" 0.000" 0.000" 0.000" 242.5 " 295.4 " 666.9 $ 895.7 $ 510.8 " 171.0 " 45.46 " 1.982" 11
12 8.784" 0.000" 0.000" 0.000" 256.9 " 271.3 " 991.2 $ 850.9 $ 497.3 " 154.9 " 39.83 " 1.627" 12
13 8.370" 0.000" 0.000" 0.000" 259.6 " 257.4 "1155 $ 831.5 $ 475.6 " 147.1 " 36.20 " 1.383" 13
14 7.434" 0.000" 0.000" 0.000" 269.0 " 279.9 "1004 $ 783.8 $ 453.4 " 147.0 " 33.47 " 1.146" 14
15 7.119" 0.000" 0.000" 0.000" 260.9 " 326.4 " 983.9 $ 720.7 $ 555.8 $ 144.3 " 31.17 " 0.900" 15
16 6.654" 0.000" 0.000" 0.286" 246.4 " 352.7 " 975.5 $ 653.5 $ 603.6 $ 135.8 " 27.56 " 0.699" 16
17 6.116" 0.000" 0.000" 27.94 " 239.3 " 358.9 " 865.2 $ 590.7 $ 597.8 $ 135.2 " 23.83 " 0.526" 17
18 5.547" 0.000" 0.000" 141.8 " 236.0 " 354.0 " 807.2 $ 540.0 $ 545.1 $ 170.2 " 21.05 " 0.387" 18
19 4.724" 0.000" 0.000" 529.5 $ 226.0 " 418.7 " 880.1 $ 510.8 " 518.4 " 188.2 " 17.93 " 0.269" 19
20 3.894" 0.000" 0.000"1355 $ 213.9 " 486.7 " 796.5 $ 488.0 " 515.9 " 194.9 " 15.80 " 0.171" 20
21 3.179" 0.000" 0.000"1076 $ 197.7 " 485.9 " 715.5 $ 466.7 " 489.2 " 210.2 " 14.17 " 0.117" 21
22 2.739" 0.000" 0.000" 738.3 $ 180.7 " 428.4 " 660.1 $ 442.8 " 444.5 " 204.9 " 13.78 " 0.065" 22
23 2.349" 0.000" 0.000" 575.4 $ 163.1 " 372.9 " 635.6 $ 424.4 " 395.1 " 191.5 " 12.50 " 0.052" 23
24 2.129" 0.000" 0.000" 492.2 " 147.1 " 340.6 " 626.3 $ 396.2 " 350.6 " 177.0 " 10.77 " 0.038" 24
25 1.828" 0.000" 0.000" 463.1 " 134.3 " 322.4 " 639.2 $ 366.2 " 317.8 " 167.7 " 9.811" 0.027" 25
26 1.506" 0.000" 0.000" 395.3 " 124.0 " 304.8 " 629.4 $ 349.4 " 294.5 " 155.1 " 8.994" 0.017" 26
27 1.178" 0.000" 0.000" 336.6 " 115.2 " 287.4 " 608.2 $ 352.0 " 273.2 " 142.7 " 8.572" 0.011" 27
28 0.953" 0.000" 0.000" 315.5 " 107.3 " 269.7 " 581.4 $ 351.0 " 253.9 " 136.4 " 7.951" 0.007" 28
29 0.820" 0.000" 312.8 " 99.71 " 269.2 " 589.4 $ 346.8 " 238.5 " 132.2 " 7.050" 0.003" 29
30 0.638" 0.000" 285.1 " 93.11 " 283.9 " 583.1 $ 384.9 " 226.5 " 123.6 " 6.663" 0.000" 30
31 0.517" 0.000" 86.26 " 562.0 $ 450.3 " 109.8 " 0.000" 31
Mean 8.884" 0.042" 0.000" 234.8 $ 196.2 " 295.2 " 664.4 $ 564.3 $ 516.1 $ 169.7 " 43.99 " 1.590"
Median 6.654" 0.000" 0.000" 0.143$ 213.8 " 285.7 " 626.3 $ 539.2 $ 517.2 $ 170.2 " 29.37 " 0.699"
Maximum 31.48 " 0.392" 0.000"1355 $ 269.0 " 486.7 "1155 $ 895.7 $ 971.9 $ 216.0 " 121.5 " 6.162"
Minimum 0.517" 0.000" 0.000" 0.000$ 86.26 " 81.14 " 313.6 $ 346.8 $ 226.5 $ 109.8 " 6.663" 0.000"
Total 275.4 " 1.18" 0.00" 7045 $ 6081 " 8857 "20596 $17492 $15483 $ 5259 " 1320 " 49.30"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 225.9 $ " ... Relative Uncertainty +/-10%
Ann. Median 135.8 $ $ ... Relative Uncertainty +/-20%
Annual Total 82459 $
Maximum Minimum
Daily 1355 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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" 5.911" 137.9 " 559.9 $ 591.2 $ 841.6 $ 809.5 $ 199.2 " 65.94 " 1
2 0.000" 0.000" 0.000" 0.000" 6.692" 130.9 " 607.5 $ 640.6 $ 738.9 $ 849.7 $ 197.0 " 52.48 " 2
3 0.000" 0.000" 0.000" 0.000" 7.164" 121.8 " 573.3 $2313 $ 670.0 $ 934.0 $ 198.4 " 43.83 " 3
4 0.000" 0.000" 0.000" 0.000" 6.922" 108.7 " 563.1 $3582 $ 624.8 $ 890.3 $ 190.8 " 37.65 " 4
5 0.000" 0.000" 0.000" 0.000" 6.563" 99.15 " 612.4 $3273 $ 586.0 $ 763.0 $ 172.4 " 33.62 " 5
6 0.000" 0.000" 0.000" 0.000" 6.310" 91.86 " 723.0 $3726 $ 545.0 $ 704.7 $ 146.8 " 30.75 " 6
7 0.000" 0.000" 0.000" 0.000" 6.634" 84.74 " 787.9 $2600 $ 518.2 " 651.9 $ 125.8 " 27.30 " 7
8 0.000" 0.000" 0.000" 0.000" 6.797" 77.82 " 883.9 $1489 $ 496.7 " 593.9 $ 110.0 " 23.36 " 8
9 0.000" 0.000" 0.000" 0.000" 6.561" 72.04 " 931.5 $1148 $ 479.0 " 547.9 $ 96.02 " 19.57 " 9
10 0.000" 0.000" 0.000" 0.000" 5.757" 66.87 " 995.9 $ 984.7 $ 514.4 $ 517.2 " 82.67 " 16.70 " 10
11 0.000" 0.000" 0.000" 0.000" 4.783" 63.66 "1178 $1124 $ 570.4 $ 488.4 " 70.31 " 14.72 " 11
12 0.000" 0.000" 0.000" 0.000" 7.390" 61.06 "1110 $1208 $ 567.3 $ 452.0 " 63.07 " 12.45 " 12
13 0.000" 0.000" 0.000" 0.000" 28.89 " 58.49 "1071 $1192 $ 576.9 $ 428.4 " 58.89 " 10.84 " 13
14 0.000" 0.000" 0.000" 0.000" 26.05 " 56.58 "1124 $1227 $ 595.7 $ 395.5 " 54.02 " 10.14 " 14
15 0.000" 0.000" 0.000" 0.000" 25.33 " 54.59 "1054 $1183 $ 621.4 $ 347.1 " 48.83 " 9.185" 15
16 0.000" 0.000" 0.000" 0.000" 56.41 " 53.27 " 895.5 $ 977.0 $ 595.7 $ 311.2 " 43.82 " 8.261" 16
17 0.000" 0.000" 0.000" 0.000" 88.29 " 52.60 " 787.1 $ 880.6 $ 552.6 $ 285.8 " 40.76 " 7.553" 17
18 0.000" 0.000" 0.000" 0.904" 109.4 " 51.66 " 733.5 $ 858.7 $ 515.4 " 265.2 " 40.10 " 7.610" 18
19 0.000" 0.000" 0.000" 5.348" 135.9 " 50.63 " 700.8 $ 857.0 $ 486.1 " 246.9 " 39.81 " 7.365" 19
20 0.000" 0.000" 0.000" 8.706" 138.1 " 49.32 " 657.9 $ 964.5 $ 480.8 " 231.7 " 38.22 " 8.784" 20
21 0.000" 0.000" 0.000" 8.928" 139.5 " 47.75 " 629.0 $1079 $ 520.7 $ 220.2 " 36.72 " 11.29 " 21
22 0.000" 0.000" 0.000" 8.133" 139.5 " 47.49 " 625.3 $1416 $ 657.1 $ 207.7 " 34.97 " 10.68 " 22
23 0.000" 0.000" 0.000" 7.497" 138.5 " 49.17 " 611.4 $1565 $ 836.2 $ 194.4 " 33.00 " 9.180" 23
24 0.000" 0.000" 0.000" 7.657" 158.0 " 51.81 " 593.1 $1872 $ 908.5 $ 178.6 " 30.05 " 7.907" 24
25 0.000" 0.000" 0.000" 7.683" 177.1 " 94.90 " 563.1 $3811 $1009 $ 160.0 " 52.85 " 7.368" 25
26 0.000" 0.000" 0.000" 7.573" 176.5 " 162.4 " 533.6 $3569 $ 957.8 $ 142.5 " 443.2 " 6.594" 26
27 0.000" 0.000" 0.000" 6.934" 165.4 " 211.0 " 515.4 "1917 $ 817.3 $ 140.2 " 347.6 " 5.728" 27
28 0.000" 0.000" 0.000" 6.358" 152.8 " 302.3 " 496.3 "1339 $ 689.5 $ 162.6 " 221.6 " 5.218" 28
29 0.000" 0.000" 5.953" 142.9 " 375.4 " 470.6 "1204 $ 615.1 $ 172.7 " 145.4 " 4.152" 29
30 0.000" 0.000" 5.743" 141.5 " 462.7 " 489.2 "1139 $ 661.6 $ 192.4 " 94.25 " 3.292" 30
31 0.000" 0.000" 141.2 " 545.9 $ 990.7 $ 205.0 " 2.502" 31
Mean 0.000" 0.000" 0.000" 2.914" 76.09 " 111.6 " 729.7 $1636 $ 641.7 $ 409.4 $ 115.2 " 16.84 "
Median 0.000" 0.000" 0.000" 0.000" 56.41 " 69.45 " 629.0 $1204 $ 595.7 $ 311.2 $ 76.49 " 10.14 "
Maximum 0.000" 0.000" 0.000" 8.928" 177.1 " 462.7 "1178 $3811 $1009 $ 934.0 $ 443.2 " 65.94 "
Minimum 0.000" 0.000" 0.000" 0.000" 4.783" 47.49 " 470.6 $ 591.2 $ 479.0 $ 140.2 $ 30.05 " 2.502"
Total 0.00" 0.00" 0.00" 87.42" 2359 " 3349 "22622 $50722 $19250 $12690 $ 3456 " 522.0 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 315.2 $ " ... Relative Uncertainty +/-10%
Ann. Median 52.60 $ $ ... Relative Uncertainty +/-20%
Annual Total 115057 $
Maximum Minimum
Daily 3811 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 2.089" 40.30 " 0.504" 0.000" 0.000" 17.11 " 772.7 $ 685.8 $2267 $ 216.1 " 52.64 " 18.40 " 1
2 1.801" 33.98 " 0.404" 0.000" 0.000" 13.80 " 844.6 $ 690.4 $1594 $ 208.5 " 49.64 " 16.87 " 2
3 1.499" 27.16 " 0.294" 0.000" 0.000" 13.66 " 829.1 $ 686.0 $1259 $ 198.7 " 47.27 " 14.77 " 3
4 1.214" 20.10 " 0.216" 0.000" 0.000" 21.38 " 759.6 $ 678.9 $1055 $ 186.7 " 45.04 " 13.00 " 4
5 1.532" 15.14 " 0.148" 0.000" 0.000" 32.00 " 753.1 $ 678.0 $ 942.6 $ 175.4 " 43.07 " 11.72 " 5
6 1.957" 11.51 " 0.088" 0.000" 0.000" 38.48 " 807.7 $ 708.5 $ 870.9 $ 172.3 " 41.45 " 10.69 " 6
7 5.533" 9.448" 0.064" 0.000" 0.000" 43.59 " 947.0 $ 671.1 $ 831.4 $ 174.5 " 39.91 " 10.08 " 7
8 58.97 " 8.384" 0.043" 0.000" 0.000" 59.65 "1191 $ 653.8 $ 787.1 $ 177.5 " 39.11 " 9.509" 8
9 67.25 " 7.530" 0.020" 0.000" 0.000" 85.05 "1426 $ 651.3 $ 781.9 $ 172.7 " 38.55 " 8.928" 9
10 46.64 " 7.026" 0.011" 0.000" 0.046" 114.5 "1461 $ 676.5 $ 769.0 $ 167.4 " 37.26 " 8.045" 10
11 32.49 " 6.465" 0.005" 0.000" 0.383" 226.8 "1629 $ 664.3 $ 732.8 $ 159.0 " 36.01 " 7.233" 11
12 20.66 " 5.901" 0.002" 0.000" 1.147" 313.0 "1429 $ 718.9 $ 677.3 $ 159.3 " 34.83 " 6.525" 12
13 12.44 " 5.372" 0.000" 0.000" 1.502" 513.3 $1117 $ 746.1 $ 623.1 $ 160.0 " 33.25 " 5.983" 13
14 8.717" 4.620" 0.000" 0.000" 5.208" 562.0 $ 931.7 $ 851.8 $ 577.1 $ 150.2 " 31.92 " 5.386" 14
15 7.071" 3.906" 0.000" 0.000" 16.11 " 571.3 $ 824.4 $1110 $ 538.8 $ 139.7 " 30.44 " 5.078" 15
16 5.511" 3.437" 0.000" 0.000" 20.80 " 611.3 $ 767.7 $1237 $ 508.5 " 132.7 " 28.60 " 4.426" 16
17 4.117" 3.444" 0.000" 0.000" 17.13 " 698.5 $ 732.4 $1062 $ 491.2 " 125.2 " 27.06 " 3.763" 17
18 3.293" 3.370" 0.000" 0.000" 14.36 " 710.8 $ 690.0 $1009 $ 474.5 " 116.9 " 24.48 " 3.186" 18
19 2.612" 2.991" 0.000" 0.000" 11.39 " 638.9 $ 647.6 $ 881.3 $ 450.7 " 108.9 " 22.86 " 2.626" 19
20 2.085" 2.454" 0.000" 0.000" 9.544" 548.3 $ 610.2 $ 779.1 $ 424.3 " 101.1 " 21.95 " 2.368" 20
21 1.707" 2.007" 0.000" 0.000" 9.415" 519.8 " 634.6 $ 780.5 $ 391.0 " 99.54 " 21.28 " 2.042" 21
22 1.342" 1.792" 0.000" 0.000" 11.58 " 534.9 $ 738.4 $ 762.0 $ 358.2 " 101.7 " 20.72 " 1.701" 22
23 1.041" 1.561" 0.000" 0.000" 13.47 " 555.5 $ 733.6 $ 830.6 $ 333.0 " 109.7 " 19.75 " 1.367" 23
24 0.791" 1.409" 0.000" 0.000" 14.87 " 545.1 $ 720.0 $1131 $ 311.8 " 109.3 " 20.47 " 1.043" 24
25 0.582" 1.288" 0.000" 0.000" 17.62 " 550.8 $ 867.9 $1678 $ 292.6 " 102.5 " 19.74 " 0.800" 25
26 0.392" 1.141" 0.000" 0.000" 21.51 " 531.3 $1115 $2318 $ 279.6 " 92.71 " 19.32 " 0.609" 26
27 0.253" 0.942" 0.000" 0.000" 22.02 " 566.3 $1077 $4399 $ 263.8 " 83.24 " 18.15 " 0.410" 27
28 0.431" 0.751" 0.000" 0.000" 18.59 " 686.7 $ 916.5 $5634 $ 251.0 " 73.97 " 16.69 " 0.260" 28
29 10.87 " 0.589" 0.000" 0.000" 15.44 " 734.3 $ 789.1 $5002 $ 237.9 " 65.62 " 18.23 " 0.182" 29
30 35.87 " 0.000" 0.000" 13.07 " 737.5 $ 736.7 $3646 $ 225.3 " 59.77 " 19.70 " 0.116" 30
31 44.20 " 0.000" 16.56 " 701.3 $2920 $ 55.71 " 0.064" 31
Mean 12.42 " 8.070" 0.058" 0.000" 8.767" 393.2 $ 909.7 $1450 $ 653.3 $ 134.1 " 30.65 " 5.716"
Median 2.612" 3.906" 0.000" 0.000" 9.544" 533.1 $ 807.7 $ 780.5 $ 523.6 $ 132.7 " 29.52 " 4.426"
Maximum 67.25 " 40.30 " 0.504" 0.000" 22.02 " 737.5 $1629 $5634 $2267 $ 216.1 " 52.64 " 18.40 "
Minimum 0.253" 0.589" 0.000" 0.000" 0.000" 13.66 $ 610.2 $ 651.3 $ 225.3 $ 55.71 " 16.69 " 0.064"
Total 385.0 " 234.0 " 1.80" 0.00" 271.8 "11796 $28201 $44940 $19600 $ 4157 " 919.4 " 177.2 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 302.4 $ " ... Relative Uncertainty +/-10%
Ann. Median 20.76 $ $ ... Relative Uncertainty +/-20%
Annual Total 110681 $
Maximum Minimum
Daily 5634 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 0.03" 0.00" 0.00" 102.7 " 185.4 " 903.4 $ 1492 $ 579.9 $ 838.5 $ 564.7 $ 225.6 " 72.25" 1
2 0.03" 0.00" 0.00" 515.9 $ 191.8 " 804.1 $ 1300 $ 585.9 $ 760.5 $ 556.9 $ 211.1 " 59.12" 2
3 0.01" 0.00" 0.00" 3451 $ 309.6 " 758.0 $ 1141 $ 581.3 $ 709.0 $ 547.4 $ 197.8 " 46.96" 3
4 0.01" 0.00" 0.00" 3047 $ 532.7 $ 819.4 $ 1424 $ 563.4 $ 689.5 $ 530.7 $ 186.7 " 37.62" 4
5 0.00" 0.00" 0.00" 1102 $ 1388 $ 844.2 $ 1727 $ 548.2 $ 692.1 $ 531.1 $ 189.8 " 31.90" 5
6 0.00" 0.00" 0.00" 749.8 $ 2625 $ 851.2 $ 1461 $ 527.0 " 1191 $ 700.2 $ 195.5 " 25.96" 6
7 0.00" 0.00" 0.00" 605.5 $ 1542 $ 1452 $ 1342 $ 522.2 " 1864 $ 711.3 $ 188.9 " 21.45" 7
8 0.00" 0.00" 0.00" 509.8 $ 1059 $ 1798 $ 1176 $ 516.4 " 1965 $ 659.3 $ 183.6 " 19.76" 8
9 0.00" 0.00" 0.00" 434.8 " 852.9 $ 1903 $ 972.1 $ 502.2 " 2338 $ 577.7 $ 176.6 " 17.72" 9
10 0.00" 0.00" 0.00" 374.1 " 783.0 $ 4592 $ 834.3 $ 484.5 " 1871 $ 527.3 $ 164.2 " 16.24" 10
11 0.00" 0.00" 0.00" 388.3 " 732.8 $ 5708 $ 762.6 $ 467.6 " 1480 $ 500.2 " 148.3 " 21.28" 11
12 0.00" 0.00" 0.00" 400.8 " 688.7 $ 6272 $ 739.3 $ 473.6 $ 1382 $ 479.3 " 134.9 " 26.66" 12
13 0.00" 0.00" 0.00" 360.0 " 645.7 $ 6639 $ 749.8 $ 613.1 $ 1280 $ 445.4 " 111.6 " 25.40" 13
14 0.00" 0.00" 0.00" 311.0 " 619.9 $ 5266 $ 798.6 $ 713.6 $ 1160 $ 403.5 " 96.07" 23.39" 14
15 0.00" 0.00" 0.00" 272.3 " 618.0 $ 3883 $ 798.5 $ 738.9 $ 1049 $ 366.0 " 90.09" 20.84" 15
16 0.00" 0.00" 0.00" 242.0 " 1096 $ 2789 $ 800.9 $ 807.9 $ 923.7 $ 345.8 " 83.67" 19.66" 16
17 0.00" 0.00" 0.00" 216.9 " 3309 $ 2429 $ 768.3 $ 1495 $ 955.5 $ 338.4 " 74.24" 17.84" 17
18 0.00" 0.00" 0.00" 192.9 " 5410 $ 2264 $ 731.5 $ 5885 $ 978.2 $ 321.8 " 65.15" 15.18" 18
19 0.00" 0.00" 0.00" 168.3 "13151 & 2412 $ 701.9 $ 6937 $ 866.1 $ 304.8 " 59.17" 11.79" 19
20 0.00" 0.00" 0.00" 144.5 "18338 & 2566 $ 666.0 $ 6955 $ 760.5 $ 288.9 " 54.29" 9.43" 20
21 0.00" 0.00" 0.00" 139.5 "17282 & 2294 $ 729.3 $ 6700 $ 788.2 $ 282.0 " 49.42" 7.97" 21
22 0.00" 0.00" 0.00" 213.1 "15275 & 1750 $ 735.3 $ 4565 $ 847.8 $ 323.3 " 44.48" 6.92" 22
23 0.00" 0.00" 0.00" 261.5 "10867 & 1794 $ 725.1 $ 2636 $ 818.6 $ 359.7 " 40.13" 5.82" 23
24 0.00" 0.00" 0.00" 329.1 " 8012 " 3088 $ 689.8 $ 2359 $ 755.1 $ 370.0 " 37.21" 4.95" 24
25 0.00" 0.00" 0.00" 290.3 " 6810 $ 3687 $ 724.6 $ 2427 $ 721.4 $ 362.6 " 34.17" 4.46" 25
26 0.00" 0.00" 0.00" 253.9 " 4992 $ 3430 $ 732.4 $ 1928 $ 666.8 $ 331.1 " 30.86" 4.05" 26
27 0.00" 0.00" 0.00" 231.2 " 3163 $ 3271 $ 696.9 $ 1486 $ 618.2 $ 304.7 " 48.27" 3.52" 27
28 0.00" 0.00" 0.00" 214.8 " 1999 $ 2182 $ 667.8 $ 1341 $ 591.3 $ 288.5 " 84.63" 3.04" 28
29 0.00" 0.00" 207.3 " 1489 $ 1589 $ 645.6 $ 1250 $ 552.7 $ 274.7 " 88.65" 2.71" 29
30 0.00" 0.00" 198.7 " 1216 $ 1557 $ 634.5 $ 1110 $ 531.6 $ 259.2 " 82.79" 2.49" 30
31 0.00" 0.81" 1036 $ 611.2 $ 938.4 $ 242.3 " 2.26" 31
Mean 0.003" 0.000" 0.026" 530.9 $4072 &2653 $ 902.6 $1846 $1022 $ 422.5 $ 112.6 " 18.99 "
Median 0.000" 0.000" 0.000" 281.3 $1388 &2279 $ 749.8 $ 807.9 $ 843.1 $ 366.0 $ 89.37 " 17.72 "
Maximum 0.03" 0.00" 0.81" 3451 $18338 & 6639 $ 1727 $ 6955 $ 2338 $ 711.3 $ 225.6 " 72.25"
Minimum 0.000" 0.000" 0.000" 102.7 $ 185.4 & 758.0 $ 611.2 $ 467.6 $ 531.6 $ 242.3 $ 30.86 " 2.262"
Total 0.1" 0.0" 0.8" 15928 $126220 & 79597 $ 27981 $ 57240 $ 30645 $ 13099 $ 3378 " 588.6"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 971.7 & " ... Relative Uncertainty +/-10%
Ann. Median 331.1 & $ ... Relative Uncertainty +/-20%
Annual Total 354678 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 18338 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 2.074" 1.505" 0.000" 0.000" 0.000" 11.40 " 48.56 " 416.4 "1167 " 197.0 " 25.34 " 4.744" 1
2 1.894" 2.038" 0.000" 0.000" 0.022" 10.45 " 54.62 " 447.1 "1109 " 179.8 " 23.80 " 4.288" 2
3 2.029" 2.480" 0.000" 0.000" 0.393" 9.802" 53.99 " 455.8 "1018 " 170.3 " 22.47 " 3.993" 3
4 2.172" 2.525" 0.000" 0.000" 1.225" 9.473" 52.83 " 437.7 " 961.2 " 172.7 " 21.54 " 3.666" 4
5 2.204" 2.333" 0.000" 0.000" 2.069" 9.321" 51.11 " 410.1 " 904.2 " 176.8 " 20.49 " 3.211" 5
6 2.096" 1.975" 0.000" 0.000" 2.816" 9.366" 51.43 " 368.8 " 814.8 " 177.2 " 19.23 " 2.753" 6
7 2.281" 1.901" 0.000" 0.000" 3.185" 9.728" 52.14 " 385.0 " 726.5 " 171.4 " 18.31 " 2.395" 7
8 3.646" 1.621" 0.000" 0.000" 3.348" 9.757" 52.35 " 513.1 " 639.1 " 159.3 " 17.45 " 2.164" 8
9 3.788" 1.243" 0.000" 0.000" 3.336" 9.588" 54.64 " 524.7 " 573.7 " 145.1 " 16.64 " 1.799" 9
10 3.610" 0.944" 0.000" 0.000" 3.313" 9.275" 57.32 " 473.1 " 526.6 " 131.8 " 16.04 " 1.510" 10
11 3.335" 0.701" 0.000" 0.000" 3.289" 9.091" 60.78 " 416.0 " 674.0 " 124.3 " 15.39 " 1.214" 11
12 4.947" 0.501" 0.000" 0.000" 3.247" 8.765" 63.91 " 372.5 " 796.5 " 125.0 " 14.54 " 1.036" 12
13 11.62 " 0.352" 0.000" 0.000" 3.226" 8.591" 67.25 " 365.3 " 806.1 " 124.5 " 13.77 " 0.864" 13
14 13.13 " 0.252" 0.000" 0.000" 3.189" 8.547" 75.00 " 370.1 " 741.7 " 121.3 " 12.95 " 0.680" 14
15 10.39 " 0.187" 0.000" 0.000" 3.514" 8.423" 77.97 " 398.2 " 696.5 " 121.9 " 11.99 " 0.543" 15
16 8.286" 0.138" 0.000" 0.000" 3.825" 8.116" 77.64 " 489.4 " 643.9 " 117.7 " 11.39 " 0.439" 16
17 6.879" 0.100" 0.000" 0.000" 3.874" 7.884" 76.36 " 500.4 " 575.8 " 110.8 " 10.53 " 0.366" 17
18 6.262" 0.066" 0.000" 0.000" 3.901" 7.698" 73.62 " 470.8 " 514.7 " 103.6 " 9.920" 0.296" 18
19 5.900" 0.036" 0.000" 0.000" 3.824" 8.011" 69.84 " 505.2 $ 459.6 " 95.77 " 9.679" 0.243" 19
20 5.676" 0.017" 0.000" 0.000" 3.680" 9.568" 76.02 " 647.9 $ 401.5 " 87.69 " 9.189" 0.230" 20
21 5.282" 0.010" 0.000" 0.000" 3.778" 10.92 " 118.5 " 732.2 $ 354.4 " 80.40 " 8.462" 0.205" 21
22 4.281" 0.008" 0.000" 0.000" 4.384" 10.99 " 143.1 " 897.6 $ 331.4 " 73.99 " 7.891" 0.160" 22
23 3.273" 0.004" 0.000" 0.000" 6.181" 11.50 " 164.4 "1723 $ 312.0 " 67.95 " 7.452" 0.121" 23
24 2.703" 0.001" 0.000" 0.000" 7.683" 13.23 " 183.6 "2143 $ 293.3 " 60.13 " 6.953" 0.076" 24
25 3.138" 0.000" 0.000" 0.000" 8.499" 15.58 " 200.7 "2091 $ 277.8 " 45.21 " 6.376" 0.506" 25
26 3.132" 0.000" 0.000" 0.000" 9.268" 17.33 " 215.3 "3013 $ 265.5 " 38.96 " 5.820" 4.349" 26
27 2.655" 0.000" 0.000" 0.000" 10.04 " 23.19 " 245.2 "2274 " 254.5 " 35.77 " 5.495" 8.008" 27
28 2.242" 0.000" 0.000" 0.000" 11.06 " 31.02 " 293.1 "1640 " 241.4 " 33.45 " 5.073" 8.472" 28
29 1.892" 0.000" 0.000" 13.41 " 31.87 " 346.3 "1360 " 227.9 " 31.41 " 5.276" 7.367" 29
30 1.620" 0.000" 0.000" 13.45 " 36.08 " 392.9 "1199 " 213.8 " 29.16 " 5.097" 5.988" 30
31 1.429" 0.000" 12.49 " 405.0 "1159 " 27.16 " 4.711" 31
Mean 4.318" 0.748" 0.000" 0.000" 5.016" 12.82 " 127.6 " 877.4 $ 584.1 " 107.7 " 12.82 " 2.464"
Median 3.273" 0.219" 0.000" 0.000" 3.680" 9.658" 75.00 " 500.4 $ 574.7 " 117.7 " 11.69 " 1.510"
Maximum 13.13 " 2.525" 0.000" 0.000" 13.45 " 36.08 " 405.0 "3013 $1167 " 197.0 " 25.34 " 8.472"
Minimum 1.429" 0.000" 0.000" 0.000" 0.000" 7.698" 48.56 " 365.3 $ 213.8 " 27.16 " 5.073" 0.076"
Total 133.9 " 20.94" 0.00" 0.00" 155.5 " 384.6 " 3956 "27200 $17522 " 3338 " 384.5 " 76.40"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 145.7 $ " ... Relative Uncertainty +/-10%
Ann. Median 8.116$ $ ... Relative Uncertainty +/-20%
Annual Total 53171 $
Maximum Minimum
Daily 3013 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 3.727" 0.000" 0.000" 0.000" 0.000" 0.002" 177.4 "3035 "2307 " 674.3 " 131.4 " 10.98 " 1
2 2.987" 0.000" 0.000" 0.000" 0.000" 0.003" 255.3 "2812 "2325 " 591.1 " 119.1 " 10.23 " 2
3 3.105" 0.000" 0.000" 0.000" 0.000" 0.007" 351.9 "2855 "1917 " 513.8 " 106.2 " 9.715" 3
4 2.555" 0.000" 0.000" 0.000" 0.000" 0.011" 497.5 "2728 "1411 " 459.4 " 94.38 " 9.011" 4
5 2.050" 0.000" 0.000" 0.000" 0.000" 0.077" 612.9 "2276 "1182 " 419.4 " 85.04 " 8.493" 5
6 1.649" 0.000" 0.000" 0.000" 0.000" 0.568" 706.4 "1868 "1034 " 377.6 " 79.01 " 8.090" 6
7 1.319" 0.000" 0.000" 0.000" 0.000" 1.736" 724.7 "1781 " 959.9 " 346.8 " 74.35 " 7.601" 7
8 1.093" 0.000" 0.000" 0.000" 0.000" 3.593" 684.7 "1674 " 960.9 " 346.5 " 70.92 " 7.231" 8
9 0.912" 0.000" 0.000" 0.000" 0.000" 5.807" 584.0 "1591 " 926.2 " 428.4 " 67.44 " 6.655" 9
10 0.781" 0.000" 0.000" 0.000" 0.000" 7.212" 487.1 "1659 " 892.1 " 418.7 " 63.61 " 6.159" 10
11 0.631" 0.000" 0.000" 0.000" 0.000" 7.608" 408.6 "1786 " 844.1 " 447.0 " 59.26 " 5.977" 11
12 0.517" 0.000" 0.000" 0.000" 0.000" 7.741" 367.2 "1721 " 859.2 " 736.6 " 54.70 " 5.887" 12
13 0.420" 0.000" 0.000" 0.000" 0.000" 8.494" 340.4 "1692 " 986.0 " 966.6 " 50.60 " 5.610" 13
14 0.332" 0.000" 0.000" 0.000" 0.000" 10.15 " 336.6 "1647 "1230 " 879.3 " 45.57 " 5.107" 14
15 0.264" 0.000" 0.000" 0.000" 0.000" 11.64 " 329.1 "1461 "1874 " 769.8 " 40.46 " 4.574" 15
16 0.199" 0.000" 0.000" 0.000" 0.000" 12.66 " 313.0 "1246 "2436 " 695.4 " 36.44 " 4.897" 16
17 0.154" 0.000" 0.000" 0.000" 0.000" 12.92 " 293.1 "1112 "2275 " 620.2 " 33.51 " 7.127" 17
18 0.119" 0.000" 0.000" 0.000" 0.000" 12.83 " 273.9 "1009 "2039 " 556.0 " 30.49 " 10.43 " 18
19 0.090" 0.000" 0.000" 0.000" 0.000" 12.99 " 263.8 " 935.5 "1772 " 509.7 " 27.85 " 15.53 " 19
20 0.057" 0.000" 0.000" 0.000" 0.000" 13.72 " 278.3 " 886.7 "1437 " 470.6 " 25.28 " 16.29 " 20
21 0.038" 0.000" 0.000" 0.000" 0.000" 14.36 " 295.9 " 834.6 "1254 " 431.5 " 23.13 " 23.38 " 21
22 0.025" 0.000" 0.000" 0.000" 0.000" 15.39 " 343.2 " 798.8 "1127 " 389.9 " 20.94 " 25.51 " 22
23 0.015" 0.000" 0.000" 0.000" 0.000" 18.53 " 466.7 " 851.2 "1026 " 319.7 " 19.37 " 22.50 " 23
24 0.007" 0.000" 0.000" 0.000" 0.000" 20.38 " 750.2 " 848.3 "1025 " 246.0 " 18.11 " 18.87 " 24
25 0.003" 0.000" 0.000" 0.000" 0.000" 17.38 " 966.1 " 903.3 "1027 " 212.9 " 17.21 " 16.05 " 25
26 0.000" 0.000" 0.000" 0.000" 0.000" 20.29 "1248 "1082 " 948.0 " 185.8 " 15.73 " 13.52 " 26
27 0.000" 0.000" 0.000" 0.000" 0.000" 37.14 "1537 "1205 " 899.6 " 170.0 " 14.43 " 11.35 " 27
28 0.000" 0.000" 0.000" 0.000" 0.000" 68.17 "2066 "1134 " 823.3 " 164.4 " 13.73 " 9.431" 28
29 0.000" 0.000" 0.000" 0.000" 90.29 "2054 "1145 " 773.4 " 158.1 " 13.02 " 7.923" 29
30 0.000" 0.000" 0.000" 0.000" 125.7 "2162 "1856 " 735.0 " 149.6 " 11.81 " 6.954" 30
31 0.000" 0.000" 0.000" 2958 "2306 " 141.1 " 5.961" 31
Mean 0.743" 0.000" 0.000" 0.000" 0.000" 18.58 " 746.3 "1572 "1310 " 445.0 " 48.77 " 10.55 "
Median 0.199" 0.000" 0.000" 0.000" 0.000" 12.15 " 466.7 "1591 "1030 " 428.4 " 38.45 " 8.493"
Maximum 3.727" 0.000" 0.000" 0.000" 0.000" 125.7 "2958 "3035 "2436 " 966.6 " 131.4 " 25.51 "
Minimum 0.000" 0.000" 0.000" 0.000" 0.000" 0.002" 177.4 " 798.8 " 735.0 " 141.1 " 11.81 " 4.574"
Total 23.05" 0.00" 0.00" 0.00" 0.00" 557.3 "23134 "48741 "39304 "13796 " 1463 " 327.0 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 348.9 " " ... Relative Uncertainty +/-10%
Ann. Median 9.715"
Annual Total 127345 "
Maximum Minimum
Daily 3035 " 0.000"
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 4.965" 0.000" 0.000" 0.009" 16.41 " 460.6 " 559.0 "8280 " 358.0 " 313.9 " 97.08 " 149.8 " 1
2 4.214" 0.000" 0.000" 0.089" 14.81 " 478.9 " 679.2 "8954 " 354.6 " 320.4 " 94.06 " 125.7 " 2
3 3.834" 0.000" 0.000" 0.177" 13.64 " 672.6 " 794.6 "9198 " 344.7 " 296.6 " 92.80 " 107.2 " 3
4 3.425" 0.000" 0.000" 0.254" 12.76 " 812.4 " 749.4 "7593 " 330.6 " 266.2 " 90.79 " 92.97 " 4
5 2.836" 0.000" 0.000" 0.296" 11.98 " 991.7 " 645.5 "6433 " 309.9 " 241.5 " 86.98 " 82.89 " 5
6 2.314" 0.000" 0.000" 0.322" 11.36 " 924.2 " 543.0 "5465 " 293.5 " 224.8 " 82.58 " 73.73 " 6
7 1.855" 0.000" 0.000" 0.493" 10.92 " 779.7 " 473.6 "4370 " 278.7 " 208.8 " 77.76 " 65.78 " 7
8 1.482" 0.000" 0.000" 3.799" 11.06 " 659.6 " 422.7 "3498 " 264.9 " 193.7 " 73.06 " 58.41 " 8
9 1.185" 0.000" 0.000" 7.966" 12.94 " 618.0 " 409.4 "2859 " 252.6 " 179.3 " 68.35 " 51.97 " 9
10 0.921" 0.000" 0.000" 9.343" 17.69 " 658.4 " 442.2 "2393 " 240.1 " 166.1 " 63.84 " 47.58 " 10
11 0.704" 0.000" 0.000" 8.700" 25.35 " 617.7 " 583.9 "2021 " 227.6 " 154.3 " 59.21 " 42.38 " 11
12 0.564" 0.000" 0.000" 7.701" 30.20 " 586.8 " 687.8 "1689 " 214.0 " 145.8 " 54.53 " 38.37 " 12
13 0.454" 0.000" 0.000" 6.750" 35.07 " 570.9 " 699.7 "1436 " 203.1 " 138.3 " 50.37 " 35.25 " 13
14 0.368" 0.000" 0.000" 5.921" 40.49 " 619.7 " 691.0 "1250 " 191.4 " 130.6 " 46.06 " 31.55 " 14
15 0.281" 0.000" 0.000" 5.271" 41.39 " 640.8 " 796.7 "1114 " 178.9 " 122.5 " 42.57 " 28.34 " 15
16 0.188" 0.000" 0.000" 4.948" 44.15 " 636.0 "1172 "1011 " 167.1 " 114.1 " 39.15 " 25.59 " 16
17 0.134" 0.000" 0.000" 9.722" 45.53 " 614.9 "1448 " 933.9 " 157.2 " 105.9 " 36.52 " 23.19 " 17
18 0.113" 0.000" 0.000" 17.77 " 46.80 " 606.2 "2334 " 867.4 " 164.4 " 98.35 " 34.26 " 20.98 " 18
19 0.094" 0.000" 0.000" 16.01 " 45.90 " 564.4 "4561 " 808.9 " 197.0 " 90.73 " 32.92 " 19.70 " 19
20 0.083" 0.000" 0.000" 15.54 " 43.60 " 565.2 "5056 " 750.9 " 203.4 " 86.08 " 35.76 " 19.04 " 20
21 0.069" 0.000" 0.000" 19.12 " 41.35 " 582.1 "5426 " 681.4 " 211.3 " 84.66 " 38.48 " 18.87 " 21
22 0.047" 0.000" 0.000" 19.79 " 46.56 " 515.9 "5306 " 611.8 " 224.0 " 84.13 " 34.10 " 17.73 " 22
23 0.027" 0.000" 0.000" 19.62 " 58.02 " 432.6 "4306 " 572.3 " 218.6 " 97.41 " 61.94 " 16.32 " 23
24 0.017" 0.000" 0.000" 19.79 " 84.40 " 365.8 "4682 " 533.8 " 202.6 " 129.4 " 140.5 " 15.24 " 24
25 0.011" 0.000" 0.000" 21.77 " 148.0 " 339.0 "4653 " 507.2 " 222.2 " 144.5 " 146.7 " 14.65 " 25
26 0.005" 0.000" 0.000" 23.29 " 211.4 " 323.5 "5147 " 472.9 " 267.4 " 145.6 " 144.3 " 14.21 " 26
27 0.001" 0.000" 0.000" 22.57 " 247.6 " 304.2 "5862 " 435.2 " 288.8 " 147.0 " 144.3 " 14.15 " 27
28 0.000" 0.000" 0.000" 21.11 " 250.6 " 373.6 "5202 " 402.6 " 313.7 " 144.2 " 155.4 " 13.28 " 28
29 0.000" 0.000" 0.000" 19.56 " 354.0 " 477.2 "4961 " 383.6 " 316.3 " 130.3 " 181.1 " 12.09 " 29
30 0.000" 0.000" 18.08 " 488.6 " 541.5 "5675 " 380.1 " 306.0 " 116.4 " 178.6 " 10.75 " 30
31 0.000" 0.000" 516.3 " 7559 " 369.8 " 104.7 " 9.493" 31
Mean 0.974" 0.000" 0.000" 10.86 " 96.09 " 577.8 "2662 "2461 " 250.1 " 158.9 " 82.80 " 41.85 "
Median 0.188" 0.000" 0.000" 9.021" 41.39 " 584.5 "1172 "1011 " 233.8 " 144.2 " 70.70 " 25.59 "
Maximum 4.965" 0.000" 0.000" 23.29 " 516.3 " 991.7 "7559 "9198 " 358.0 " 320.4 " 181.1 " 149.8 "
Minimum 0.000" 0.000" 0.000" 0.009" 10.92 " 304.2 " 409.4 " 369.8 " 157.2 " 84.13 " 32.92 " 9.493"
Total 30.19" 0.00" 0.00" 325.8 " 2979 "17335 "82528 "76276 " 7503 " 4926 " 2484 " 1297 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 534.7 " " ... Relative Uncertainty +/-10%
Ann. Median 67.07 "
Annual Total 195683 "
Maximum Minimum
Daily 9198 " 0.000"
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 8.19" 0.01" 0.00" 0.00" 0.00" 18.39" 4011 " 2659 " 1042 " 924.0 " 56.32" 14.14" 1
2 7.15" 0.00" 0.00" 0.00" 0.00" 17.99" 4116 " 2277 " 1032 " 863.5 " 51.01" 13.42" 2
3 6.10" 0.00" 0.00" 0.00" 0.00" 19.27" 3745 " 1968 " 985.4 " 809.9 " 46.33" 12.88" 3
4 5.01" 0.00" 0.00" 0.00" 0.00" 21.41" 2827 " 1696 " 920.8 " 751.5 " 39.15" 12.46" 4
5 4.30" 0.00" 0.00" 0.00" 0.00" 23.12" 2062 " 1493 " 880.4 " 685.8 " 38.69" 11.91" 5
6 3.72" 0.00" 0.00" 0.00" 0.00" 24.07" 1634 " 1441 " 869.7 " 612.1 " 39.12" 11.24" 6
7 3.12" 0.00" 0.00" 0.00" 0.00" 23.45" 1450 " 1447 " 843.8 " 551.1 " 37.72" 10.50" 7
8 2.63" 0.00" 0.00" 0.00" 0.00" 22.67" 1379 " 1387 " 934.1 " 501.2 " 35.93" 9.77" 8
9 2.16" 0.00" 0.00" 0.00" 0.00" 22.15" 1397 " 1281 " 920.3 " 457.0 " 35.12" 9.03" 9
10 1.83" 0.00" 0.00" 0.00" 0.00" 29.06" 1882 " 1294 " 968.8 " 404.5 " 33.64" 8.18" 10
11 1.53" 0.00" 0.00" 0.00" 0.00" 40.77" 2433 " 1398 " 1206 " 343.6 " 31.13" 7.70" 11
12 1.25" 0.00" 0.00" 0.00" 0.00" 46.09" 2550 " 1458 " 1684 " 319.0 " 30.62" 7.40" 12
13 1.01" 0.00" 0.00" 0.00" 0.00" 46.05" 2496 " 1580 " 1625 " 299.5 " 31.06" 7.01" 13
14 0.84" 0.00" 0.00" 0.00" 0.00" 45.57" 2271 " 2607 " 1442 " 283.5 " 29.20" 6.50" 14
15 0.66" 0.00" 0.00" 0.00" 0.00" 43.81" 1730 " 4877 " 1589 " 270.2 " 27.69" 5.97" 15
16 0.49" 0.00" 0.00" 0.00" 0.00" 41.39" 1433 " 5928 " 1543 " 256.1 " 25.13" 5.47" 16
17 0.39" 0.00" 0.00" 0.00" 0.00" 40.03" 1289 " 6305 " 1386 " 243.6 " 22.92" 5.00" 17
18 0.33" 0.00" 0.00" 0.00" 0.00" 54.76" 1207 " 7265 " 1507 " 230.0 " 23.70" 4.56" 18
19 0.26" 0.00" 0.00" 0.00" 0.00" 111.2 " 2306 " 6836 " 1488 " 209.7 " 25.10" 4.23" 19
20 0.19" 0.00" 0.00" 0.00" 0.00" 174.4 " 4233 " 5362 " 1472 " 186.2 " 24.71" 4.00" 20
21 0.15" 0.00" 0.00" 0.00" 0.00" 248.3 " 7059 " 4780 " 1797 " 165.4 " 23.78" 3.73" 21
22 0.12" 0.00" 0.00" 0.00" 50.16" 282.6 " 7461 " 4577 " 1957 " 141.8 " 23.55" 3.34" 22
23 0.10" 0.00" 0.00" 0.00" 164.5 " 283.4 " 9397 " 3826 " 2016 " 106.7 " 22.73" 2.92" 23
24 0.08" 0.00" 0.00" 0.00" 158.1 " 299.2 "10228 " 3135 " 1820 " 94.56" 21.25" 2.45" 24
25 0.05" 0.00" 0.00" 0.00" 105.4 " 384.4 " 8954 " 2617 " 1834 " 86.60" 20.04" 2.09" 25
26 0.04" 0.00" 0.00" 0.00" 69.82" 617.8 " 8301 " 2224 " 1614 " 79.92" 19.01" 1.82" 26
27 0.03" 0.00" 0.00" 0.00" 47.91" 834.4 " 7118 " 1895 " 1328 " 75.99" 17.89" 1.58" 27
28 0.01" 0.00" 0.00" 0.00" 34.95" 1228 " 5731 " 1596 " 1174 " 73.12" 16.68" 1.28" 28
29 0.01" 0.00" 0.00" 27.74" 3076 " 4647 " 1366 " 1070 " 69.93" 16.26" 1.16" 29
30 0.01" 0.00" 0.00" 22.70" 3696 " 3795 " 1198 " 992.2 " 65.97" 15.19" 1.08" 30
31 0.01" 0.00" 19.68" 3158 " 1092 " 61.66" 0.91" 31
Mean 1.669" 0.000" 0.000" 0.000" 22.61 " 393.9 "3945 "2867 "1331 " 329.8 " 29.36 " 6.249"
Median 0.494" 0.000" 0.000" 0.000" 0.000" 45.81 "2827 "1968 "1357 " 256.1 " 26.41 " 5.470"
Maximum 8.19" 0.01" 0.00" 0.00" 164.5 " 3696 "10228 " 7265 " 2016 " 924.0 " 56.32" 14.14"
Minimum 0.006" 0.000" 0.000" 0.000" 0.000" 17.99 "1207 "1092 " 843.8 " 61.66 " 15.19 " 0.908"
Total 51.7" 0.0" 0.0" 0.0" 701.0" 11816 "122296 " 88865 " 39942 " 10224 " 880.7" 193.7"
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 753.3 " " ... Relative Uncertainty +/-10%
Ann. Median 21.25 "
Annual Total 274970 "
Maximum Minimum
Daily 10228 " 0.000"
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 0.747" 0.000" 0.000" 128.6 " 17.28 " 166.2 " 176.8 " 293.2 " 162.2 " 50.63 " 9.741" 6.807# 1
2 0.607" 0.000" 0.000" 176.8 " 16.53 " 153.9 " 181.5 " 277.0 " 151.8 " 46.44 " 8.894" 5.829# 2
3 0.504" 0.000" 0.000" 169.0 " 15.69 " 138.9 " 182.7 " 259.2 " 145.0 " 42.64 " 8.191" 5.404# 3
4 0.416" 0.000" 0.000" 150.0 " 14.88 " 125.2 " 181.4 " 246.1 " 137.5 " 39.15 " 7.825" 4.963# 4
5 0.319" 0.000" 0.000" 324.7 " 14.26 " 113.0 " 177.0 " 240.1 " 128.6 " 36.71 " 7.322" 4.643# 5
6 0.264" 0.000" 0.000" 421.6 " 13.71 " 105.5 " 172.0 " 231.1 " 118.8 " 34.07 " 6.748" 4.432# 6
7 0.209" 0.000" 0.000" 387.1 " 13.49 " 101.3 " 149.3 " 215.4 " 113.5 " 31.69 " 6.303" 3.884# 7
8 0.164" 0.000" 0.000" 337.3 " 13.44 " 100.3 " 102.9 " 194.6 " 124.7 " 29.45 " 5.907# 3.154# 8
9 0.141" 0.000" 0.000" 285.2 " 13.33 " 96.52 " 113.5 " 172.3 " 136.4 " 27.24 " 7.559# 2.532# 9
10 0.103" 0.000" 0.000" 232.5 " 13.12 " 92.69 " 129.3 " 152.8 " 141.4 " 26.07 " 10.88 # 2.009# 10
11 0.068" 0.000" 0.000" 177.0 " 12.90 " 88.93 " 159.2 " 138.2 " 142.0 " 25.76 " 12.93 # 1.593# 11
12 0.042" 0.000" 0.000" 140.7 " 12.78 " 84.70 " 262.6 " 141.6 " 145.1 " 24.83 " 17.28 # 0.993# 12
13 0.026" 0.000" 0.000" 115.9 " 13.78 " 80.22 " 320.1 " 201.3 " 141.3 " 23.47 " 30.98 # 0.675# 13
14 0.017" 0.000" 0.000" 71.62 " 13.96 " 87.80 " 339.9 " 272.6 " 132.9 " 22.10 " 38.60 # 0.486# 14
15 0.008" 0.000" 0.000" 59.59 " 13.70 " 99.48 " 372.2 " 331.5 " 123.1 " 20.86 " 35.38 # 0.225# 15
16 0.002" 0.000" 0.000" 52.34 " 13.46 " 105.9 " 378.8 " 325.7 " 115.0 " 19.57 " 32.98 # 0.124# 16
17 0.000" 0.000" 0.000" 46.33 " 13.50 " 106.7 " 378.7 " 302.5 " 112.1 " 18.39 " 33.49 # 0.061# 17
18 0.000" 0.000" 0.000" 42.05 " 13.73 " 113.4 " 372.9 " 304.8 " 111.3 " 17.55 " 33.34 # 0.041# 18
19 0.000" 0.000" 0.000" 38.94 " 13.82 " 120.5 " 348.3 " 330.9 " 109.5 " 15.51 " 31.40 # 0.027# 19
20 0.000" 0.000" 0.000" 36.15 " 13.88 " 119.7 " 325.6 " 330.2 " 104.8 " 13.35 " 28.62 # 0.005# 20
21 0.000" 0.000" 0.000" 33.32 " 13.87 " 114.2 " 309.1 " 309.6 " 98.66 " 15.23 " 26.20 # 0.006# 21
22 0.000" 0.000" 0.000" 30.76 " 18.08 " 112.0 " 290.4 " 288.3 " 91.60 " 16.78 " 23.47 # 0.026# 22
23 0.000" 0.000" 0.000" 28.01 " 25.49 " 149.1 " 280.1 " 269.7 " 84.53 " 17.31 " 20.60 # 0.039# 23
24 0.000" 0.000" 0.000" 25.56 " 23.76 " 203.4 " 261.4 " 258.6 " 77.83 " 17.41 " 18.18 # 0.053# 24
25 0.000" 0.000" 0.000" 23.79 " 24.65 " 229.4 " 245.5 " 249.9 " 73.12 " 16.78 " 16.22 # 0.063# 25
26 0.000" 0.000" 227.7 " 22.28 " 36.87 " 228.0 " 241.3 " 242.8 " 72.61 " 16.20 " 14.20 # 0.124# 26
27 0.000" 0.000" 556.2 " 20.88 " 60.83 " 220.2 " 245.5 " 233.4 " 69.16 " 16.11 " 12.33 # 0.136# 27
28 0.000" 0.000" 408.2 " 19.57 " 78.24 " 207.3 " 247.0 " 217.2 " 64.58 " 15.29 " 10.47 # 0.164# 28
29 0.000" 289.0 " 18.55 " 107.1 " 193.0 " 262.3 " 199.4 " 59.96 " 13.63 " 9.311# 0.131# 29
30 0.000" 215.0 " 17.82 " 145.1 " 182.0 " 281.0 " 185.4 " 55.40 " 12.13 " 8.141# 0.129# 30
31 0.000" 160.4 " 165.3 " 291.7 " 173.4 " 10.86 " 0.148# 31
Mean 0.117" 0.000" 59.89 " 121.1 " 31.63 " 134.6 " 251.0 " 244.8 " 111.5 " 23.65 " 17.78 # 1.578#
Median 0.002" 0.000" 0.000" 55.97 " 13.96 " 113.8 " 261.4 " 246.1 " 114.2 " 19.57 " 13.56 # 0.164#
Maximum 0.747" 0.000" 556.2 " 421.6 " 165.3 " 229.4 " 378.8 " 331.5 " 162.2 " 50.63 " 38.60 # 6.807#
Minimum 0.000" 0.000" 0.000" 17.82 " 12.78 " 80.22 " 102.9 " 138.2 " 55.40 " 10.86 " 5.907# 0.005#
Total 3.636" 0.000"1857 "3634 " 980.5 "4039 "7780 "7589 "3344 " 733.2 " 533.5 # 48.90 #
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 83.68 # " ... Relative Uncertainty +/-10%
Ann. Median 23.76 # # ... Relative Uncertainty +/-15%
Annual Total 30543 #
Maximum Minimum
Daily 556.2 # 0.000#
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 0.172# 19.43 " 13.67 " 1.412" 21.55 " 117.8 "2432 "4884 "1422 " 734.9 " 204.0 " 65.18 " 1
2 0.123# 16.31 " 11.54 " 2.084" 23.49 " 125.5 "2581 "4780 "1363 " 689.5 " 188.9 " 59.00 " 2
3 0.084# 12.89 " 9.783" 4.388" 23.97 " 126.0 "2522 "4225 "1268 " 749.5 " 240.4 " 52.67 " 3
4 0.077# 10.12 " 8.662" 7.839" 23.98 " 118.1 "2193 "4066 "1170 " 766.0 " 693.2 " 47.40 " 4
5 0.066# 171.4 " 7.831" 9.578" 23.66 " 106.7 "1883 "3651 "1065 " 780.3 " 689.4 " 44.23 " 5
6 0.061# 520.6 " 7.123" 8.627" 23.06 " 97.76 "1520 "3343 "1004 " 715.7 " 631.9 " 42.20 " 6
7 0.049" 446.7 " 6.553" 8.708# 23.73 " 90.79 "1323 "3121 " 976.3 " 645.9 " 545.2 " 44.58 " 7
8 0.030" 345.6 " 6.257" 8.693" 24.30 " 88.46 "1199 "2786 " 914.4 " 689.4 " 909.2 " 43.42 " 8
9 0.014" 268.9 " 5.883" 7.973" 24.22 " 92.08 "1085 "2375 " 841.3 " 750.0 "1392 " 42.79 " 9
10 0.006" 218.7 " 5.354" 6.896" 23.04 " 96.15 " 997.3 "2029 " 765.9 " 661.1 "1361 " 41.74 " 10
11 0.001" 173.6 " 4.986" 7.561" 21.58 " 97.29 " 931.8 "1739 " 690.4 " 566.1 "1205 " 39.32 " 11
12 0.000" 140.2 " 4.560" 6.940" 20.04 " 94.44 " 900.8 "1497 " 616.2 " 474.7 "1032 " 36.65 " 12
13 0.000" 114.2 " 4.071" 6.351" 18.68 " 88.37 " 871.2 "1319 " 555.5 " 490.4 " 884.1 " 39.25 " 13
14 0.000" 94.59 " 3.794" 5.876" 17.63 " 83.43 " 843.4 "1495 " 502.9 " 524.9 " 747.8 " 40.53 " 14
15 0.000" 80.56 " 3.580" 5.500" 16.73 " 79.22 " 920.7 "1550 " 461.6 " 455.9 " 648.6 " 40.22 " 15
16 0.000" 69.32 " 3.280" 5.189" 16.14 " 74.76 "1164 "1806 " 480.9 " 370.2 " 559.2 " 40.93 " 16
17 0.000" 59.44 " 3.108" 5.094" 15.77 " 70.08 "1283 "1777 " 639.9 " 314.1 " 480.6 "1623 " 17
18 0.000" 50.82 " 3.086" 5.203" 15.38 " 68.27 "1244 "1772 "1151 " 274.4 " 410.5 "8878 " 18
19 0.000" 44.27 " 2.964" 4.206" 14.53 " 69.09 "1315 "1594 "2166 " 241.1 " 353.6 "9429 " 19
20 0.000" 38.49 " 2.674" 3.808" 19.78 " 68.65 "1344 "1417 "2328 " 207.0 " 312.8 "4495 " 20
21 0.000" 33.97 " 2.409" 3.583" 28.97 " 69.73 "1342 "1471 "1954 " 182.1 " 277.3 "2255 " 21
22 0.000" 30.16 " 2.340" 3.444" 26.15 " 69.13 "1272 "9641 &2062 " 163.4 " 245.0 "1299 " 22
23 0.000" 27.08 " 2.381" 3.366" 43.40 " 68.40 "1249 "8999 "1748 " 177.2 " 214.6 " 928.0 " 23
24 0.000" 24.29 " 2.277" 3.590" 56.85 " 76.49 "1178 "6175 "1311 " 221.9 " 158.9 " 734.2 " 24
25 0.004" 21.72 " 2.110" 3.599" 48.06 " 205.5 "1105 "4612 "1082 " 232.7 " 134.0 " 565.7 " 25
26 0.032" 19.73 " 1.990" 3.711" 39.26 " 410.7 "1060 "3563 " 982.5 " 246.6 " 117.5 " 456.5 " 26
27 0.096" 17.74 " 1.894" 6.559" 45.08 " 573.6 "1032 "2694 " 912.5 " 254.3 " 103.1 " 364.7 " 27
28 0.306" 16.05 " 1.821" 10.25 " 71.18 " 652.0 "1288 "2290 " 878.4 " 249.2 " 91.20 " 308.2 " 28
29 4.209" 1.724" 12.98 " 88.44 "1343 "2223 "1996 " 832.9 " 241.3 " 81.76 " 266.5 " 29
30 17.71 " 1.574" 17.30 " 111.7 "2090 "3094 "1772 " 789.7 " 232.5 " 72.73 " 229.5 " 30
31 20.36 " 1.456" 111.8 " 3972 "1605 " 219.0 " 199.4 " 31
Mean 1.400# 110.2 " 4.540" 6.343# 34.91 " 247.1 "1528 "3098 &1098 " 436.2 " 499.5 "1057 "
Median 0.006# 47.54 " 3.280" 5.688# 23.73 " 93.26 "1272 "2290 & 979.4 " 370.2 " 382.0 " 65.18 "
Maximum 20.36 # 520.6 " 13.67 " 17.30 # 111.8 "2090 "3972 "9641 &2328 " 780.3 "1392 "9429 "
Minimum 0.000# 10.12 " 1.456" 1.412# 14.53 " 68.27 " 843.4 "1319 & 461.6 " 163.4 " 72.73 " 36.65 "
Total 43.41# 3087 " 140.7 " 190.3 # 1082 " 7412 "47368 "96044 &32935 "13521 "14986 "32753 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 683.7 & " ... Relative Uncertainty +/-10%
Ann. Median 114.2 & # ... Relative Uncertainty +/-15%
Annual Total 249564 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 9641 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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
1 167.6 " 17.32 " 4.005" 0.048" 0.099" 70.38 " 382.4 # 170.1 " 241.9 " 343.9 " 20.63 " 7.724" 1
2 144.2 " 17.46 " 3.633" 0.061" 0.093" 80.99 " 368.0 # 170.9 " 228.2 " 325.7 " 19.58 " 7.213" 2
3 126.5 " 18.85 " 3.327" 0.065" 0.100" 99.39 " 354.1 # 180.0 " 222.2 " 294.7 " 18.70 " 6.638" 3
4 119.9 " 19.35 " 3.053" 0.075" 0.110" 117.9 " 341.0 # 191.7 " 374.2 " 273.8 " 20.39 " 6.205" 4
5 113.6 " 18.72 " 2.693" 0.085" 1.211" 124.5 " 323.2 # 194.9 " 509.1 " 247.3 " 23.09 " 6.317" 5
6 104.1 " 17.95 " 2.058" 0.068" 2.066" 123.5 " 304.8 # 192.9 " 541.6 " 215.4 " 24.94 " 6.323" 6
7 95.46 " 17.34 " 1.809" 0.059" 2.943" 129.0 " 317.9 " 200.5 " 464.3 " 183.5 " 24.95 " 6.168" 7
8 87.62 " 16.44 " 1.601# 0.059" 4.524" 137.4 " 321.4 " 206.9 " 386.1 " 157.9 " 22.91 " 5.631" 8
9 81.21 " 15.53 " 1.421# 0.056" 5.791" 140.2 " 304.1 " 215.0 " 378.0 " 138.0 " 20.65 " 5.110" 9
10 75.69 " 14.72 " 1.314# 0.048" 9.516" 153.9 " 292.5 " 221.3 " 403.4 " 121.7 " 19.44 " 5.131" 10
11 71.05 " 14.22 " 1.207# 0.042" 17.14 " 207.2 " 310.1 " 221.8 " 394.2 " 108.1 " 19.07 " 5.953" 11
12 66.02 " 13.62 " 1.062# 0.040" 19.86 " 254.9 # 312.9 " 229.3 " 350.9 " 95.80 " 17.44 " 7.734" 12
13 62.86 " 12.82 " 0.927# 0.038" 20.58 " 341.6 # 316.8 " 274.8 " 311.1 " 86.93 " 15.90 " 12.71 " 13
14 61.09 " 12.19 " 0.773# 0.032" 20.92 " 407.0 # 326.7 " 307.5 " 277.6 " 81.95 " 14.66 " 19.35 " 14
15 59.86 " 11.65 " 0.672# 0.026" 23.38 " 437.4 # 329.8 " 326.3 " 248.1 " 78.53 " 13.68 " 17.96 " 15
16 53.12 " 11.13 " 0.563# 0.021" 31.49 " 466.2 # 328.7 " 332.3 " 222.1 " 74.40 " 12.84 " 16.12 " 16
17 47.80 " 10.55 " 0.517# 0.020" 44.45 " 512.6 # 325.7 " 322.8 " 196.7 " 69.07 " 12.19 " 14.58 " 17
18 44.12 " 10.04 " 0.461# 0.022" 55.50 " 515.2 # 311.1 " 317.7 " 182.4 " 63.54 " 11.53 " 12.63 " 18
19 41.54 " 9.453" 0.381# 0.024" 59.95 " 531.2 # 291.5 " 330.7 " 178.1 " 59.48 " 10.61 " 10.65 " 19
20 39.65 " 8.890" 0.310# 0.023" 60.37 " 554.6 # 274.5 " 338.4 " 175.5 " 54.71 " 9.705" 9.346" 20
21 37.78 " 8.519" 0.268# 0.021" 58.69 " 536.8 # 257.7 " 334.6 " 173.5 " 50.08 " 8.922" 8.603" 21
22 35.65 " 8.183" 0.236# 0.020" 55.74 " 518.2 # 243.4 " 358.3 " 214.6 " 47.51 " 8.467" 7.558" 22
23 33.38 " 7.564" 0.206# 0.021" 53.49 " 510.3 # 232.0 " 359.6 " 241.8 " 43.99 " 7.941" 19.34 " 23
24 30.98 " 6.940" 0.179# 0.016" 50.02 " 514.1 # 223.1 " 346.5 " 238.6 " 39.99 " 7.300" 193.5 " 24
25 28.68 " 6.252" 0.153# 0.016" 46.52 " 496.2 # 216.3 " 340.2 " 234.4 " 36.85 " 6.695" 266.3 " 25
26 26.99 " 5.679" 0.128# 0.018" 43.57 " 465.3 # 209.3 " 312.8 " 224.8 " 33.70 " 6.195" 241.9 " 26
27 25.73 " 5.226" 0.105# 0.019" 41.13 " 442.2 # 202.4 " 299.1 " 259.0 " 31.04 " 5.876" 195.7 " 27
28 24.80 " 4.815" 0.093" 0.024" 39.95 " 426.3 # 195.3 " 293.1 " 307.4 " 28.66 " 5.958" 159.4 " 28
29 22.55 " 4.476" 0.083" 0.059" 40.52 " 411.3 # 186.8 " 286.1 " 322.7 " 26.55 " 7.812" 164.4 " 29
30 19.95 " 0.065" 0.108" 42.17 " 396.6 # 178.1 " 272.1 " 343.3 " 24.37 " 8.161" 161.9 " 30
31 18.30 " 0.051" 49.07 " 172.4 " 255.4 " 22.12 " 139.7 " 31
Mean 63.48 " 11.93 " 1.076# 0.041" 29.06 " 337.4 # 282.4 # 271.1 " 294.9 " 111.6 " 14.21 " 56.38 "
Median 53.12 " 11.65 " 0.563# 0.035" 31.49 " 409.1 # 304.8 # 286.1 " 253.5 " 74.40 " 13.26 " 10.65 "
Maximum 167.6 " 19.35 " 4.005# 0.108" 60.37 " 554.6 # 382.4 # 359.6 " 541.6 " 343.9 " 24.95 " 266.3 "
Minimum 18.30 " 4.476" 0.051# 0.016" 0.093" 70.38 # 172.4 # 170.1 " 173.5 " 22.12 " 5.876" 5.110"
Total 1968 " 345.9 " 33.35# 1.23" 901.0 "10122 # 8754 # 8404 " 8846 " 3459 " 426.2 " 1748 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 123.0 # " ... Relative Uncertainty +/-10%
Ann. Median 41.85 # # ... Relative Uncertainty +/-15%
Annual Total 45008 #
Maximum Minimum
Daily 554.6 # 0.016#
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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
1 122.1 " 2.569" 0.000" 0.000" 73.48 " 294.8 " 178.3 "1113 " 862.6 "1601 " 125.3 " 11.78 " 1
2 116.9 " 2.361" 0.000" 0.000" 76.45 " 276.7 " 169.8 " 954.0 " 841.4 "1527 " 110.8 " 11.29 " 2
3 123.6 " 2.177" 0.000" 0.000" 70.09 " 258.7 " 164.7 " 844.4 " 826.0 "1420 " 97.94 " 10.59 " 3
4 117.8 " 1.935" 0.000" 0.000" 63.40 " 245.7 " 157.4 " 763.6 " 973.1 "1423 " 89.56 " 9.703" 4
5 99.98 " 1.667" 0.000" 0.000" 58.64 " 252.0 " 147.6 " 748.0 " 944.3 "1284 " 83.51 " 8.874" 5
6 83.50 " 1.430" 0.000" 0.000" 53.50 " 258.1 " 137.7 "1235 " 947.6 "1090 " 77.22 " 8.324" 6
7 81.47 " 1.186" 0.000" 0.000" 50.22 " 251.0 " 128.3 "2499 " 933.7 " 970.3 " 74.19 " 7.879" 7
8 95.62 " 1.005" 0.000" 0.000" 54.25 " 239.5 " 119.8 "4203 " 946.2 " 896.7 " 69.71 " 7.089" 8
9 104.4 " 0.827" 0.000" 0.000" 61.94 " 240.9 " 115.4 "5041 " 914.0 " 821.3 " 64.70 " 6.825" 9
10 110.4 " 0.652" 0.000" 0.644" 68.45 " 255.4 " 120.1 "4935 " 846.1 " 728.5 " 60.39 " 6.574" 10
11 91.23 " 0.522" 0.000" 7.336" 72.02 " 274.4 " 132.1 "4476 " 812.7 " 657.7 " 54.97 " 6.252" 11
12 65.61 " 0.438" 0.000" 12.68 " 72.15 " 265.4 " 136.3 "3530 " 922.4 " 588.5 " 49.03 " 5.880" 12
13 46.60 " 0.385" 0.000" 15.69 " 71.44 " 251.3 " 135.4 "2709 "1028 " 518.7 " 43.65 " 5.471" 13
14 35.69 " 0.318" 0.000" 15.96 " 69.79 " 240.1 " 133.6 "2221 "1261 " 457.4 " 38.59 " 5.081" 14
15 29.34 " 0.239" 0.000" 15.22 " 68.69 " 239.1 " 135.0 "1950 "2156 " 389.2 " 34.31 " 4.727" 15
16 23.99 " 0.178" 0.000" 14.48 " 75.51 " 245.0 " 163.7 "1941 "2095 " 338.9 " 30.95 " 4.275" 16
17 19.60 " 0.135" 0.000" 13.78 " 115.3 " 241.5 " 227.4 "1842 "2274 " 302.6 " 28.57 " 3.967" 17
18 15.93 " 0.084" 0.000" 13.80 " 151.6 " 226.1 " 282.5 "1659 "2513 " 271.1 " 25.87 " 3.666" 18
19 13.26 " 0.046" 0.000" 13.90 " 174.3 " 206.0 " 307.5 "1418 "2657 " 255.1 " 23.24 " 3.330" 19
20 11.35 " 0.026" 0.000" 15.28 " 193.3 " 187.1 " 297.8 "1249 "2482 " 268.9 " 20.85 " 3.037" 20
21 9.794" 0.015" 0.000" 15.58 " 206.6 " 172.2 " 273.0 "1101 "2595 " 272.1 " 18.79 " 2.727" 21
22 8.434" 0.013" 0.000" 14.78 " 202.8 " 161.2 " 254.8 " 988.0 "2584 " 258.2 " 17.83 " 2.507" 22
23 7.677" 0.007" 0.000" 13.66 " 199.7 " 155.8 " 249.1 " 903.9 "3802 " 246.5 " 17.28 " 2.346" 23
24 6.748" 0.002" 0.000" 12.42 " 226.4 " 168.8 " 384.1 " 824.9 "3718 " 233.3 " 16.15 " 2.221" 24
25 5.800" 0.001" 0.000" 13.60 " 313.7 " 193.6 " 564.0 " 747.4 "3721 " 211.7 " 15.03 " 2.021" 25
26 5.188" 0.000" 0.000" 54.72 " 407.2 " 223.6 " 637.8 " 688.1 "3809 " 201.2 " 14.22 " 1.834" 26
27 4.823" 0.000" 0.000" 98.25 " 436.3 " 236.0 " 853.6 " 642.3 "3727 " 205.3 " 13.24 " 1.655" 27
28 4.332" 0.000" 0.000" 103.5 " 420.8 " 232.8 " 962.9 " 674.7 "2900 " 199.8 " 12.22 " 1.421" 28
29 3.824" 0.000" 94.20 " 370.1 " 214.4 "1074 " 703.6 "2124 " 182.1 " 11.95 " 1.267" 29
30 3.481" 0.000" 81.78 " 330.5 " 192.6 "1158 " 769.0 "1800 " 160.8 " 12.13 " 1.109" 30
31 3.038" 0.000" 310.8 " 1252 " 824.9 " 141.7 " 1.001" 31
Mean 47.47 " 0.651" 0.000" 21.37 " 165.1 " 230.0 " 356.6 "1748 "1934 " 584.6 " 45.07 " 4.991"
Median 23.99 " 0.278" 0.000" 13.72 " 76.45 " 239.8 " 178.3 "1113 "1947 " 338.9 " 32.63 " 4.275"
Maximum 123.6 " 2.569" 0.000" 103.5 " 436.3 " 294.8 "1252 "5041 "3809 "1601 " 125.3 " 11.78 "
Minimum 3.038" 0.000" 0.000" 0.000" 50.22 " 155.8 " 115.4 " 642.3 " 812.7 " 141.7 " 11.95 " 1.001"
Total 1472 " 18.22" 0.00" 641.2 " 5119 " 6900 "11054 "54199 "58016 "18122 " 1352 " 154.7 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 430.3 " " ... Relative Uncertainty +/-10%
Ann. Median 91.23 "
Annual Total 157048 "
Maximum Minimum
Daily 5041 " 0.000"
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 0.898" 0.000" 0.000" 0.000" 0.000" 409.2 " 282.4 "1426 "3214 " 622.0 " 172.6 " 34.73 " 1
2 0.781" 0.000" 0.000" 0.000" 0.000" 355.6 " 310.7 "1225 "3173 " 552.0 " 145.2 " 40.92 " 2
3 0.682" 0.000" 0.000" 0.000" 0.000" 320.2 " 549.6 "1117 "2956 " 530.7 " 127.7 " 40.66 " 3
4 0.595" 0.000" 0.000" 0.000" 0.000" 293.1 " 776.7 "1053 "2232 " 492.7 " 114.2 " 35.87 " 4
5 0.486" 0.000" 0.000" 0.000" 0.000" 268.7 " 714.3 " 998.6 "1734 " 438.3 " 107.3 " 30.83 " 5
6 0.403" 0.000" 0.000" 0.000" 0.000" 244.4 " 921.5 " 924.1 "1556 " 415.4 " 107.5 " 27.28 " 6
7 0.355" 0.000" 0.000" 0.000" 0.000" 221.1 "1946 " 865.3 "1547 " 388.7 " 112.0 " 23.93 " 7
8 0.292" 0.000" 0.000" 0.000" 0.000" 197.1 "3622 " 828.0 "1690 " 353.9 " 111.4 " 21.28 " 8
9 0.241" 0.000" 0.000" 0.000" 0.000" 184.0 "3810 " 771.9 "2187 " 337.3 " 108.0 " 18.88 " 9
10 0.192" 0.000" 0.000" 0.000" 0.000" 201.2 "3489 " 714.4 "2337 " 307.9 " 102.0 " 16.63 " 10
11 0.142" 0.000" 0.000" 0.000" 0.000" 219.5 "2912 " 651.9 "2326 " 279.3 " 95.67 " 14.69 " 11
12 0.102" 0.000" 0.000" 0.000" 0.000" 211.1 "2180 " 587.6 "2255 " 254.7 " 88.26 " 13.45 " 12
13 0.070" 0.000" 0.000" 0.000" 0.000" 199.2 "1591 " 542.6 "1986 " 232.7 " 79.86 " 11.60 " 13
14 0.042" 0.000" 0.000" 0.000" 0.000" 173.9 "1469 " 492.9 "1489 " 211.3 " 78.49 " 10.08 " 14
15 0.025" 0.000" 0.000" 0.000" 0.000" 161.2 "1941 " 445.0 "1173 " 189.9 " 76.26 " 8.966" 15
16 0.016" 0.000" 0.000" 0.000" 0.000" 151.1 "2341 " 427.2 "1040 " 168.8 " 70.97 " 7.907" 16
17 0.006" 0.000" 0.000" 0.000" 0.000" 151.4 "2281 " 407.8 " 982.7 " 149.9 " 65.18 " 7.054" 17
18 0.003" 0.000" 0.000" 0.000" 0.000" 233.2 "2082 " 519.3 " 920.5 " 135.5 " 59.23 " 6.238" 18
19 0.001" 0.000" 0.000" 0.000" 0.000" 268.4 "1714 " 856.8 " 847.0 " 134.0 " 53.01 " 5.647" 19
20 0.000" 0.000" 0.000" 0.000" 4.124" 293.2 "1414 " 790.8 " 772.8 " 214.8 " 47.46 " 5.313" 20
21 0.000" 0.000" 0.000" 0.000" 73.86 " 326.4 "1239 " 766.6 " 714.1 " 252.9 " 43.69 " 4.680" 21
22 0.000" 0.000" 0.000" 0.000" 253.8 " 425.8 "1336 " 834.1 " 724.4 " 315.4 " 39.75 " 4.194" 22
23 0.000" 0.000" 0.000" 0.000" 714.6 " 556.7 "1390 " 844.1 " 697.6 " 416.9 " 35.30 " 3.724" 23
24 0.000" 0.000" 0.000" 0.000" 855.0 " 658.0 "1500 " 828.0 " 706.6 " 354.4 " 30.62 " 3.322" 24
25 0.000" 0.000" 0.000" 0.000" 921.6 " 600.2 "1572 " 743.7 " 674.9 " 346.1 " 26.96 " 2.904" 25
26 0.000" 0.000" 0.000" 0.000" 854.6 " 519.6 "1737 " 790.9 " 636.3 " 368.4 " 24.45 " 2.547" 26
27 0.000" 0.000" 0.000" 0.000" 741.6 " 464.1 "2225 " 813.8 " 664.1 " 360.2 " 24.62 " 2.059" 27
28 0.000" 0.000" 0.000" 0.000" 736.5 " 405.4 "2261 " 789.4 " 718.1 " 324.5 " 26.51 " 1.607" 28
29 0.000" 0.000" 0.000" 695.5 " 347.1 "2187 "2455 " 725.7 " 286.9 " 27.68 " 1.290" 29
30 0.000" 0.000" 0.000" 606.0 " 311.3 "2172 "4335 " 713.5 " 248.3 " 28.98 " 1.089" 30
31 0.000" 0.000" 495.7 " 1816 "3892 " 210.7 " 1.014" 31
Mean 0.172" 0.000" 0.000" 0.000" 224.3 " 312.4 "1799 "1056 "1446 " 319.2 " 74.36 " 13.24 "
Median 0.016" 0.000" 0.000" 0.000" 0.000" 280.9 "1737 " 813.8 "1106 " 315.4 " 73.61 " 7.907"
Maximum 0.898" 0.000" 0.000" 0.000" 921.6 " 658.0 "3810 "4335 "3214 " 622.0 " 172.6 " 40.92 "
Minimum 0.000" 0.000" 0.000" 0.000" 0.000" 151.1 " 282.4 " 407.8 " 636.3 " 134.0 " 24.45 " 1.014"
Total 5.33" 0.00" 0.00" 0.00" 6953 " 9371 "55784 "32737 "43393 " 9895 " 2231 " 410.4 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 440.5 " " ... Relative Uncertainty +/-10%
Ann. Median 53.01 "
Annual Total 160780 "
Maximum Minimum
Daily 4335 " 0.000"
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 0.954" 0.000" 0.000" 0.000$ 40.38 $ 98.70 " 151.5 " 931.5 " 328.6 " 105.5 " 39.26 $ 0.611$ 1
2 0.938" 0.000" 0.000" 0.000$ 40.90 $ 95.06 " 147.0 " 917.3 " 336.9 " 90.53 " 38.11 $ 0.495$ 2
3 0.909" 0.000" 0.000" 0.000$ 42.93 $ 108.4 " 137.0 " 703.4 " 337.3 " 80.26 " 34.74 $ 0.440$ 3
4 0.817" 0.000" 0.000" 0.000$ 50.72 $ 121.3 " 119.4 " 562.8 " 328.8 " 72.27 $ 29.84 $ 0.319$ 4
5 0.740" 0.000" 0.000" 0.000$ 62.06 $ 128.0 " 105.5 " 492.4 " 371.1 " 67.07 $ 22.11 $ 0.583$ 5
6 0.693" 0.000" 0.000" 0.000$ 72.68 $ 130.3 " 98.85 " 450.8 " 400.1 " 63.96 $ 16.40 $ 0.794$ 6
7 0.640" 0.000" 0.000" 0.000$ 85.91 " 128.3 " 96.56 " 409.6 " 393.4 " 60.11 $ 12.53 $ 0.788$ 7
8 0.531" 0.000" 0.000" 0.000$ 100.7 " 123.2 " 94.90 " 377.0 " 369.2 " 56.42 $ 10.23 $ 0.790$ 8
9 0.428" 0.000" 0.000" 0.000$ 116.5 " 115.4 " 91.06 " 395.7 " 332.9 " 52.34 $ 8.320$ 0.738$ 9
10 0.330" 0.000" 0.000" 10.60 $ 126.5 " 107.8 " 88.97 " 395.1 " 299.5 " 46.47 $ 7.221$ 0.675$ 10
11 0.272" 0.000" 0.000" 36.44 $ 125.7 " 100.3 " 86.56 " 396.1 " 295.0 " 40.14 $ 6.568$ 0.563$ 11
12 0.229" 0.000" 0.000" 153.4 $ 121.4 " 95.06 " 83.89 " 376.5 " 327.3 " 35.63 $ 5.804$ 0.530$ 12
13 0.197" 0.000" 0.000" 241.6 " 119.0 " 90.32 " 80.41 " 351.0 " 396.1 " 32.32 $ 5.127$ 0.457$ 13
14 0.171" 0.000" 0.000" 213.8 " 117.3 " 85.80 " 75.76 " 329.5 " 462.3 " 29.64 $ 4.402$ 0.363$ 14
15 0.131" 0.000" 0.000" 197.8 " 116.3 " 81.61 " 71.96 " 312.1 " 484.4 " 27.09 $ 3.939$ 0.294$ 15
16 0.098" 0.000" 0.000" 178.3 " 118.7 " 78.50 " 68.37 $ 296.2 " 460.1 " 24.39 $ 3.538$ 0.218$ 16
17 0.075" 0.000" 0.000" 162.5 " 140.7 " 77.38 " 65.35 $ 283.3 " 426.4 " 22.21 $ 3.267$ 0.134$ 17
18 0.061" 0.000" 0.000" 147.6 " 206.0 " 83.93 " 64.01 $ 298.0 " 401.5 " 20.61 $ 2.915$ 0.084$ 18
19 0.044" 0.000" 0.000" 143.5 " 229.8 " 96.79 " 65.61 $ 307.2 " 367.2 " 20.28 $ 2.619$ 0.038$ 19
20 0.035" 0.000" 0.000" 131.9 " 220.2 " 115.7 " 116.7 " 355.7 " 326.2 " 19.28 $ 2.401$ 0.015$ 20
21 0.026" 0.000" 0.000" 118.3 " 220.1 " 149.2 " 166.7 " 385.4 " 284.5 " 17.70 $ 2.189$ 0.006$ 21
22 0.015" 0.000" 0.000" 104.8 " 218.0 " 227.0 " 220.0 " 435.8 " 243.7 " 16.18 $ 2.046$ 0.002$ 22
23 0.007" 0.000" 0.000$ 91.75 " 216.8 " 189.3 " 252.2 " 453.6 " 213.2 " 15.13 $ 1.945$ 0.000$ 23
24 0.003" 0.000" 0.000$ 80.67 " 215.4 " 183.3 " 252.2 " 447.0 " 190.7 " 13.98 $ 1.788$ 0.000$ 24
25 0.001" 0.000" 0.000$ 71.67 $ 212.3 " 167.6 " 242.4 " 425.2 " 172.9 " 12.61 $ 1.538$ 0.000$ 25
26 0.000" 0.000" 0.000$ 62.04 $ 208.9 " 137.3 " 243.8 " 402.9 " 158.0 " 11.39 $ 1.306$ 0.000$ 26
27 0.000" 0.000" 0.000$ 52.41 $ 206.0 " 120.4 " 255.7 " 375.6 " 143.4 " 10.54 $ 1.193$ 0.000$ 27
28 0.000" 0.000" 0.000$ 45.64 $ 204.6 " 117.5 " 251.7 " 349.1 " 131.9 " 10.73 $ 1.046$ 0.000$ 28
29 0.002" 0.000$ 40.54 $ 203.1 " 131.4 " 238.8 " 331.0 " 123.1 " 12.17 $ 0.939$ 0.000$ 29
30 0.000" 0.000$ 39.55 $ 185.2 " 147.5 " 227.3 " 330.8 " 115.0 " 12.32 $ 0.745$ 0.000$ 30
31 0.000" 0.000$ 127.5 " 399.5 " 313.3 " 23.60 $ 0.000$ 31
Mean 0.269" 0.000" 0.000$ 77.50 $ 144.3 $ 121.1 " 150.3 $ 425.5 " 307.4 " 36.22 $ 9.136$ 0.288$
Median 0.098" 0.000" 0.000$ 57.22 $ 126.5 $ 116.6 " 116.7 $ 385.4 " 328.7 " 24.39 $ 3.739$ 0.218$
Maximum 0.954" 0.000" 0.000$ 241.6 $ 229.8 $ 227.0 " 399.5 $ 931.5 " 484.4 " 105.5 $ 39.26 $ 0.794$
Minimum 0.000" 0.000" 0.000$ 0.000$ 40.38 $ 77.38 " 64.01 $ 283.3 " 115.0 " 10.54 $ 0.745$ 0.000$
Total 8.35" 0.00" 0.00$ 2325 $ 4472 $ 3632 " 4660 $13191 " 9221 " 1123 $ 274.1 $ 8.94$
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 106.6 $ " ... Relative Uncertainty +/-10%
Ann. Median 39.55 $ $ ... Relative Uncertainty +/-20%
Annual Total 38915 $
Maximum Minimum
Daily 931.5 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 0.00$ 548.2 " 19.70$ 767.2 " 316.3 " 904.3 " 856.5 " 868.0 " 3210 " 750.1 " 143.2 " 14.47$ 1
2 0.00$ 483.6 " 17.72$ 626.9 " 307.3 " 890.3 " 827.6 " 842.6 " 2804 " 826.2 " 133.8 " 12.76$ 2
3 0.00$ 449.1 " 16.27$ 510.2 " 294.9 " 833.2 " 811.8 " 814.4 " 2407 " 874.6 " 123.3 " 11.60$ 3
4 0.00$ 420.7 " 14.67$ 424.7 " 284.6 " 796.6 " 804.9 " 846.6 " 2042 " 878.2 " 112.6 " 10.79$ 4
5 0.00$ 395.4 " 13.50$ 355.8 " 286.6 " 744.1 " 778.2 " 986.3 " 1813 " 802.2 " 103.3 " 10.01$ 5
6 0.00$ 363.9 " 12.93$ 286.5 " 286.0 " 706.6 " 740.7 " 1176 " 1538 " 742.6 " 94.30" 9.36$ 6
7 0.00$ 326.4 " 12.44$ 271.3 " 307.1 " 767.0 " 697.4 " 1600 " 1447 " 786.1 " 85.23" 8.50$ 7
8 0.00$ 285.8 " 12.47$ 275.9 " 330.5 " 883.0 " 837.4 " 2830 " 1688 " 874.6 " 77.77" 7.44$ 8
9 0.00$ 237.9 " 11.91$ 266.0 " 340.7 " 941.4 " 926.8 " 3255 " 1536 " 984.9 " 70.90$ 7.15$ 9
10 0.00$ 187.8 " 11.14$ 243.7 " 348.0 " 944.1 " 1122 " 3013 " 1362 " 935.7 " 66.12$ 6.88$ 10
11 0.00$ 160.1 " 10.32$ 330.3 " 335.9 " 938.1 " 1162 " 2636 " 1216 " 849.6 " 64.72$ 6.43$ 11
12 0.00$ 137.1 " 9.81$ 529.6 " 314.6 " 930.5 " 1040 " 2519 " 1118 " 754.4 " 62.76$ 7.77$ 12
13 0.00$ 116.1 " 9.59$ 839.1 " 298.4 " 1001 " 959.3 " 2203 " 1002 " 679.2 " 59.43$ 9.46$ 13
14 0.00$ 97.99" 9.09$ 831.0 " 293.5 " 1058 " 894.9 " 1901 " 903.2 " 600.9 " 54.79$ 16.21$ 14
15 0.00$ 83.47" 8.91$ 892.8 " 286.9 " 1160 " 861.7 " 1661 " 839.8 " 531.0 " 49.87$ 41.14$ 15
16 0.00$ 72.83" 8.12$ 881.9 " 282.2 " 1103 " 958.4 " 1607 " 843.7 " 481.7 " 44.73$ 59.27$ 16
17 0.00$ 65.44$ 7.14$ 808.3 " 267.2 " 1093 " 1138 " 1538 " 809.0 " 428.5 " 42.71$ 72.94$ 17
18 0.00$ 58.40$ 6.45$ 723.2 " 249.9 " 1076 " 1240 " 2042 " 773.7 " 379.0 " 41.58$ 187.3 " 18
19 110.9 $ 52.35$ 6.20$ 639.6 " 230.8 " 1034 " 1236 " 2317 " 835.5 " 340.9 " 40.68$ 287.5 " 19
20 290.9 " 47.61$ 6.01$ 567.1 " 216.8 " 1017 " 1127 " 2375 " 843.3 " 321.3 " 38.35$ 277.4 " 20
21 2992 " 44.65$ 5.87$ 522.5 " 314.3 " 1001 " 1172 " 2253 " 839.2 " 303.7 " 35.57$ 237.5 " 21
22 10334 " 41.05$ 5.49$ 487.2 " 674.3 " 1061 " 1414 " 2201 " 794.8 " 280.4 " 33.63$ 199.6 " 22
23 11647 " 37.65$ 6.97$ 445.4 " 895.7 " 1028 " 1485 " 1791 " 799.9 " 262.3 " 32.44$ 168.8 " 23
24 6325 " 34.59$ 9.43$ 411.3 " 972.4 " 993.1 " 1361 " 1471 " 815.8 " 247.7 " 31.07$ 143.2 " 24
25 3157 " 30.49$ 11.68$ 403.7 " 1103 " 963.0 " 1249 " 1270 " 796.7 " 231.2 " 28.71$ 118.6 " 25
26 1766 " 27.45$ 40.35$ 406.5 " 1175 " 936.4 " 1143 " 1150 " 728.6 " 215.0 " 26.01$ 97.42" 26
27 1231 " 25.70$ 134.1 " 371.6 " 1025 " 911.1 " 1037 " 1716 " 691.7 " 201.1 " 23.01$ 80.72" 27
28 991.3 " 23.67$ 296.5 " 340.9 " 991.8 " 888.0 " 966.0 " 2865 " 786.2 " 189.2 " 20.62$ 68.55$ 28
29 864.5 " 21.65$ 459.0 " 327.1 " 989.4 " 906.7 " 919.9 " 3400 " 774.0 " 177.7 " 18.11$ 59.28$ 29
30 767.4 " 583.0 " 323.8 " 970.9 " 880.2 " 896.3 " 3399 " 760.5 " 165.0 " 16.22$ 50.83$ 30
31 655.2 " 795.8 " 917.0 " 883.2 " 3440 " 154.0 " 41.99$ 31
Mean 1327 $ 168.2 $ 82.98 $ 503.7 " 513.1 " 946.3 "1018 "2000 "1227 " 524.2 " 59.18 $ 75.19 $
Median 0.000$ 83.47 $ 11.68 $ 435.1 " 314.6 " 939.7 " 959.3 "1901 " 843.5 " 481.7 " 47.30 $ 41.99 $
Maximum 11647 $ 548.2 $ 795.8 $ 892.8 " 1175 " 1160 " 1485 " 3440 " 3210 " 984.9 " 143.2 $ 287.5 $
Minimum 0.000$ 21.65 $ 5.488$ 243.7 " 216.8 " 706.6 " 697.4 " 814.4 " 691.7 " 154.0 " 16.22 $ 6.433$
Total 41133 $ 4877 $ 2573 $15111 "15906 "28389 "31547 "61989 "36820 "16249 " 1775 $ 2331 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 706.8 $ " ... Relative Uncertainty +/-10%
Ann. Median 416.0 $ $ ... Relative Uncertainty +/-20%
Annual Total 258701 $
Maximum Minimum
Daily 11647 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 35.49$ 0.84$ 490.4 " 46.31$ 23.92$ 181.6 " 90.77$ 1431 " 815.7 " 1240 " 96.32" 10.48$ 1
2 30.95$ 0.68$ 445.9 " 44.36$ 23.52$ 175.6 " 231.9 " 1707 " 761.0 " 1036 " 87.94" 10.01$ 2
3 27.75$ 0.59$ 400.1 " 42.90$ 23.01$ 165.1 " 350.7 " 1730 " 708.1 " 904.8 " 81.07" 9.55$ 3
4 25.10$ 0.43$ 357.3 " 40.99$ 22.65$ 154.5 " 357.7 " 2166 " 658.4 " 788.9 " 75.53" 11.33$ 4
5 22.70$ 0.29$ 322.1 " 39.21$ 22.74$ 142.7 " 334.5 " 2560 " 614.4 " 690.5 " 69.41$ 12.25$ 5
6 19.27$ 0.18$ 291.2 " 38.21$ 22.54$ 132.0 " 331.6 " 2330 " 584.9 " 625.3 " 64.38$ 11.33$ 6
7 17.03$ 0.16$ 259.3 " 36.75$ 21.91$ 121.7 " 369.3 " 2154 " 549.7 " 582.4 " 61.27$ 10.02$ 7
8 15.55$ 0.09$ 229.9 " 35.04$ 21.17$ 112.4 " 394.3 " 1899 " 523.7 " 526.5 " 60.02$ 9.07$ 8
9 13.87$ 0.04$ 201.7 " 34.04$ 21.24$ 104.0 " 421.0 " 2303 " 495.1 " 471.3 " 60.62$ 8.46$ 9
10 12.44$ 2.16$ 183.5 " 33.57$ 20.80$ 102.7 " 524.1 " 2521 " 458.3 " 417.0 " 59.76$ 7.89$ 10
11 10.81$ 5.38$ 168.0 " 33.24$ 20.40$ 101.0 " 578.4 " 2563 " 426.5 " 371.5 " 56.99$ 19.68$ 11
12 9.17$ 11.41$ 155.1 " 32.25$ 19.91$ 94.63" 557.9 " 3552 " 401.1 " 331.9 " 54.10$ 87.52" 12
13 7.55$ 56.97$ 148.0 " 31.68$ 19.58$ 88.93" 518.5 " 4822 " 372.7 " 299.9 " 50.19$ 54.23$ 13
14 6.54$ 5680 " 137.7 " 31.81$ 20.45$ 86.07" 493.6 " 6540 " 347.5 " 267.6 " 46.06$ 51.48$ 14
15 5.97$16482 " 92.13" 31.60$ 27.60$ 84.41" 479.3 " 7353 " 326.7 " 238.9 " 42.00$ 54.39$ 15
16 5.26$20306 $ 71.88$ 32.09$ 32.04$ 82.40" 471.8 " 7171 " 306.3 " 217.9 " 38.39$ 33.15$ 16
17 4.54$13562 " 65.56$ 31.98$ 32.30$ 81.27" 474.6 " 6685 " 286.8 " 216.8 " 35.82$ 20.16$ 17
18 4.08$ 6479 " 63.66$ 31.58$ 33.49$ 80.50" 445.6 " 6510 " 266.7 " 220.2 " 33.92$ 15.85$ 18
19 3.75$ 3656 " 63.19$ 31.76$ 38.66$ 78.37" 397.8 " 5954 " 248.8 " 199.6 " 32.11$ 13.20$ 19
20 3.39$ 2424 " 61.74$ 31.53$ 46.51$ 77.33" 401.1 " 5281 " 237.0 " 181.8 " 28.80$ 10.91$ 20
21 3.17$ 1586 " 60.06$ 31.05$ 52.73$ 77.52" 433.6 " 4678 " 255.3 " 168.2 " 26.17$ 8.96$ 21
22 2.86$ 1151 " 60.62$ 30.22$ 59.01$ 78.45" 472.1 " 3933 " 408.1 " 161.3 " 23.39$ 7.49$ 22
23 2.58$ 935.7 " 61.90$ 29.94$ 65.25$ 77.78" 536.7 " 3390 " 552.8 " 158.0 " 20.88$ 6.24$ 23
24 2.33$ 821.4 " 64.42$ 28.97$ 83.92" 71.60" 661.6 " 2821 " 544.8 " 147.0 " 19.18$ 5.45$ 24
25 2.20$ 740.3 " 65.08$ 27.62$ 106.0 " 68.03$ 750.8 " 2234 " 749.7 " 133.0 " 17.44$ 4.95$ 25
26 2.11$ 676.6 " 64.42$ 26.83$ 115.8 " 65.57$ 828.1 " 1748 " 924.0 " 125.9 " 15.91$ 4.33$ 26
27 1.87$ 603.1 " 62.51$ 26.38$ 117.4 " 63.73$ 867.8 " 1420 " 1375 " 123.8 " 14.90$ 3.77$ 27
28 1.61$ 538.6 " 60.21$ 25.94$ 119.2 " 63.13$ 1004 " 1193 " 1609 " 121.0 " 13.34$ 3.34$ 28
29 1.43$ 56.46$ 25.32$ 129.0 " 61.64$ 1047 " 1041 " 1593 " 115.4 " 12.01$ 3.06$ 29
30 1.16$ 52.32$ 24.39$ 143.3 " 63.46$ 1081 " 949.4 " 1524 " 108.8 " 11.16$ 2.84$ 30
31 0.95$ 48.85$ 172.0 " 1094 " 878.0 " 103.9 " 2.67$ 31
Mean 9.790$2704 $ 156.9 $ 32.92 $ 54.13 $ 97.94 $ 548.4 $3275 " 630.8 " 364.4 " 43.64 $ 16.58 $
Median 5.261$ 570.8 $ 71.88 $ 31.78 $ 32.04 $ 83.40 $ 474.6 $2521 " 534.2 " 220.2 " 40.20 $ 10.01 $
Maximum 35.49$20306 $ 490.4 $ 46.31$ 172.0 $ 181.6 $ 1094 $ 7353 " 1609 " 1240 " 96.32$ 87.52$
Minimum 0.951$ 0.037$ 48.85 $ 24.39 $ 19.58 $ 61.64 $ 90.77 $ 878.0 " 237.0 " 103.9 " 11.16 $ 2.673$
Total 303.5$ 75720 $ 4865 $ 987.5$ 1678 $ 2938 $ 17000 $101515 " 18925 " 11295 " 1309 $ 514.1$
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 649.5 $ " ... Relative Uncertainty +/-10%
Ann. Median 80.50 $ $ ... Relative Uncertainty +/-20%
Annual Total 237051 $
Maximum Minimum
Daily 20306 $ 0.037$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 2.440$ 49.95 $ 8.017$ 4.913$ 39.95 $ 154.3 " 429.1 "3457 "2079 " 216.9 " 70.47 $ 10.41 $ 1
2 2.257$ 44.87 $ 7.834$ 4.829$ 36.11 $ 159.6 " 476.2 "4101 "2273 " 201.7 " 68.33 $ 10.33 $ 2
3 2.079$ 41.31 $ 7.426$ 4.970$ 33.20 $ 152.6 "1232 "4896 "2031 " 190.5 " 68.59 $ 10.64 $ 3
4 1.846$ 38.27 $ 7.034$ 5.034$ 31.20 $ 137.0 "1508 "5448 "1630 " 205.4 " 70.85 " 10.81 $ 4
5 1.573$ 35.36 $ 6.870$ 5.053$ 29.88 $ 148.2 "1651 "6040 "1369 " 243.3 " 66.81 $ 10.58 $ 5
6 1.298$ 33.15 $ 7.010$ 5.045$ 29.95 $ 222.6 "1537 "6110 "1204 " 255.6 " 62.57 $ 12.20 $ 6
7 1.138$ 30.44 $ 7.246$ 5.119$ 30.13 $ 217.7 "1632 "6181 "1082 " 291.2 " 58.39 $ 13.12 $ 7
8 1.004$ 28.42 $ 7.074$ 5.121$ 31.12 $ 221.7 "1781 "5902 "1008 " 302.2 " 53.92 $ 12.83 $ 8
9 0.870$ 26.38 $ 6.724$ 5.113$ 32.16 $ 239.2 "1831 "6010 " 946.2 " 296.1 " 50.21 $ 12.15 $ 9
10 0.732$ 23.82 $ 6.159$ 5.147$ 33.08 $ 560.5 "1684 "6185 " 881.9 " 287.9 " 47.71 $ 11.90 $ 10
11 0.524$ 22.21 $ 5.602$ 5.145$ 34.28 $ 826.0 "1510 "5964 " 819.5 " 277.9 " 44.81 $ 11.41 $ 11
12 0.425$ 20.34 $ 5.286$ 5.306$ 35.34 $ 873.5 "1405 "5516 " 740.5 " 263.4 " 42.03 $ 9.839$ 12
13 0.371$ 18.27 $ 5.128$ 5.463$ 36.05 $ 744.3 "1370 "5311 " 669.6 " 255.8 " 40.58 $ 6.859$ 13
14 0.308$ 16.39 $ 5.686$ 5.543$ 36.25 $ 609.3 "1293 "4889 " 607.0 " 275.4 " 38.68 $ 5.988$ 14
15 0.191$ 15.13 $ 5.890$ 5.647$ 36.51 $ 563.7 "1504 "4119 " 554.9 " 294.3 " 36.40 $ 5.390$ 15
16 6.632$ 14.19 $ 5.759$ 5.721$ 37.11 $ 571.1 "1427 "3571 " 518.1 " 290.1 " 33.43 $ 5.103$ 16
17 48.38 $ 13.42 $ 5.523$ 5.879$ 37.39 $ 522.4 "1502 "3182 " 493.0 " 268.6 " 31.45 $ 4.987$ 17
18 50.11 $ 12.46 $ 5.277$ 6.064$ 37.38 $ 487.6 "1518 "2898 " 463.6 " 243.4 " 27.70 $ 4.712$ 18
19 62.82 $ 11.62 $ 5.137$ 6.132$ 36.39 $ 526.1 "1607 "2517 " 431.1 " 220.8 " 24.15 $ 4.435$ 19
20 137.4 $ 10.72 $ 5.046$ 6.250$ 36.01 $ 496.5 "1541 "2068 " 402.1 " 201.8 " 21.43 $ 4.057$ 20
21 573.6 " 10.04 $ 5.099$ 7.263$ 36.22 $ 463.5 "1808 "1744 " 372.8 " 189.1 " 19.59 $ 3.773$ 21
22 536.0 " 9.969$ 5.029$ 40.74 $ 36.69 $ 428.1 "2195 "1557 " 345.5 " 176.9 " 17.80 $ 3.684$ 22
23 367.4 " 9.376$ 4.826$ 193.2 " 37.19 $ 401.4 "2500 "1403 " 324.5 " 164.8 " 16.62 $ 3.341$ 23
24 252.4 " 8.580$ 4.582$ 196.4 " 37.91 $ 375.2 "2543 "1286 " 305.1 " 155.3 " 15.47 $ 2.940$ 24
25 186.4 " 8.434$ 4.641$ 148.4 " 63.24 $ 357.4 "2869 "1190 " 283.7 " 143.7 " 14.76 $ 2.740$ 25
26 147.3 " 8.838$ 4.835$ 107.4 " 131.1 " 347.9 "3620 "1143 " 254.7 " 130.7 " 14.13 $ 2.568$ 26
27 120.7 " 8.375$ 5.036$ 81.18 " 148.5 " 364.7 "4148 "1069 " 234.7 " 117.1 " 13.30 $ 2.462$ 27
28 97.09 " 8.021$ 4.984$ 64.13 $ 144.4 " 426.1 "4455 "1325 " 217.7 " 104.4 " 12.50 $ 2.334$ 28
29 78.55 " 4.965$ 52.99 $ 156.9 " 436.9 "4797 "2068 " 205.5 " 93.34 " 11.62 $ 2.197$ 29
30 65.47 $ 5.025$ 45.32 $ 149.7 " 440.2 "4475 "2383 " 214.1 " 83.63 " 10.92 $ 2.147$ 30
31 56.51 $ 5.046$ 139.0 " 3776 "2020 " 75.49 " 2.138$ 31
Mean 90.45 $ 20.66 $ 5.800$ 34.82 $ 57.11 $ 415.8 "2117 "3598 " 765.4 " 210.2 " 36.84 $ 6.712$
Median 6.632$ 15.76 $ 5.286$ 5.684$ 36.39 $ 427.1 "1632 "3457 " 536.5 " 216.9 " 34.92 $ 5.103$
Maximum 573.6 $ 49.95 $ 8.017$ 196.4 $ 156.9 $ 873.5 "4797 "6185 "2273 " 302.2 " 70.85 $ 13.12 $
Minimum 0.191$ 8.021$ 4.582$ 4.829$ 29.88 $ 137.0 " 429.1 "1069 " 205.5 " 75.49 " 10.92 $ 2.138$
Total 2804 $ 578.4$ 179.8$ 1045 $ 1770 $ 12475 " 65624 "111551 " 22961 " 6517 " 1105 $ 208.1$
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 621.4 $ " ... Relative Uncertainty +/-10%
Ann. Median 62.82 $ $ ... Relative Uncertainty +/-20%
Annual Total 226818 $
Maximum Minimum
Daily 6185 $ 0.191$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 2.136$ 0.000$ 0.000$ 50.02 $ 7.955$ 8.201$ 542.0 " 407.8 "2267 " 217.1 " 36.43 $ 1.976$ 1
2 1.972$ 0.000$ 0.000$ 43.14 $ 7.661$ 7.826$ 605.8 " 390.5 "2597 " 203.0 " 36.60 $ 1.852$ 2
3 1.647$ 0.000$ 0.000$ 37.07 $ 7.379$ 6.845$ 595.3 " 368.1 "2872 " 191.0 " 36.40 $ 1.788$ 3
4 1.354$ 0.000$ 0.000$ 32.02 $ 7.482$ 6.623$ 544.9 " 350.3 "2954 " 169.3 " 34.99 $ 1.628$ 4
5 1.204$ 0.000$ 0.000$ 26.93 $ 7.659$ 6.785$ 632.6 " 339.8 "2600 " 113.0 " 32.21 $ 1.365$ 5
6 1.072$ 0.000$ 0.000$ 22.80 $ 8.890$ 6.949$ 738.9 " 369.5 "2112 " 98.75 " 28.10 $ 1.179$ 6
7 0.930$ 0.000$ 0.000$ 19.35 $ 9.396$ 12.67 $ 739.9 " 408.5 "1780 " 93.24 " 24.43 $ 0.999$ 7
8 0.697$ 0.000$ 0.000$ 16.50 $ 9.662$ 20.45 $ 740.3 " 403.0 "1481 " 88.83 " 20.72 $ 0.885$ 8
9 0.526$ 0.000$ 0.000$ 14.22 $ 9.347$ 41.87 $ 814.6 " 409.0 "1242 " 86.60 " 18.09 $ 0.705$ 9
10 0.392$ 0.000$ 0.000$ 12.49 $ 9.523$ 90.37 $ 890.9 " 486.1 "1079 " 84.23 " 15.93 $ 0.577$ 10
11 0.248$ 0.000$ 0.000$ 10.85 $ 10.05 $ 126.8 " 925.6 " 738.2 " 979.0 " 81.77 " 13.41 $ 0.426$ 11
12 0.170$ 0.000$ 0.000$ 9.675$ 10.52 $ 130.9 " 939.5 " 744.9 " 904.7 " 77.91 " 11.32 $ 0.306$ 12
13 0.103$ 0.000$ 0.000$ 8.778$ 9.910$ 125.8 " 873.4 " 623.8 " 836.0 " 73.08 " 9.691$ 0.240$ 13
14 0.044$ 0.000$ 0.000$ 7.956$ 9.210$ 137.7 " 734.5 " 582.6 " 763.4 " 73.27 " 8.193$ 0.149$ 14
15 0.016$ 0.000$ 0.000$ 7.160$ 8.436$ 179.8 " 603.4 " 706.8 " 706.3 " 75.30 " 6.910$ 0.072$ 15
16 0.004$ 0.000$ 0.000$ 6.640$ 8.770$ 255.8 " 524.7 " 760.5 " 636.9 " 79.04 " 6.333$ 0.030$ 16
17 0.000$ 0.000$ 0.000$ 5.993$ 8.898$ 292.7 " 478.0 " 851.4 " 571.1 " 79.10 " 5.840$ 0.009$ 17
18 0.000$ 0.000$ 0.000$ 5.631$ 8.961$ 283.9 " 435.2 " 875.8 " 515.5 " 77.85 " 5.058$ 0.001$ 18
19 0.000$ 0.000$ 0.000$ 7.456$ 8.493$ 256.9 " 410.2 " 883.9 " 483.9 " 74.55 " 4.541$ 0.000$ 19
20 0.000$ 0.000$ 0.000$ 8.638$ 8.831$ 228.5 " 455.1 " 865.1 " 450.2 " 70.18 $ 4.139$ 0.000$ 20
21 0.000$ 0.000$ 0.000$ 8.342$ 9.132$ 203.2 " 510.8 " 852.5 " 410.8 " 68.06 $ 3.702$ 0.000$ 21
22 0.000$ 0.000$ 0.000$ 8.494$ 9.477$ 192.9 " 524.4 " 828.4 " 378.0 " 64.19 $ 3.485$ 0.000$ 22
23 0.000$ 0.000$ 0.000$ 12.21 $ 9.680$ 280.0 " 550.2 " 790.5 " 349.6 " 58.98 $ 3.317$ 0.000$ 23
24 0.000$ 0.000$ 0.000$ 17.75 $ 9.788$ 340.2 " 586.0 " 731.7 " 322.0 " 53.84 $ 3.132$ 0.000$ 24
25 0.000$ 0.000$ 7.451$ 17.37 $ 9.872$ 369.2 " 648.2 " 653.2 " 301.6 " 49.70 $ 2.914$ 0.000$ 25
26 0.000$ 0.000$ 105.3 $ 14.28 $ 9.642$ 384.7 " 654.3 " 593.7 " 291.3 " 46.67 $ 2.777$ 0.000$ 26
27 0.000$ 0.000$ 134.7 " 11.59 $ 9.130$ 379.3 " 631.0 " 551.1 " 276.5 " 43.65 $ 2.609$ 0.000$ 27
28 0.000$ 0.000$ 113.1 " 9.780$ 8.507$ 410.3 " 578.2 " 521.0 " 258.0 " 40.16 $ 2.406$ 0.000$ 28
29 0.000$ 89.00 " 8.810$ 8.001$ 487.3 " 521.5 " 513.0 " 242.0 " 36.97 $ 2.253$ 0.000$ 29
30 0.000$ 70.82 $ 8.268$ 7.709$ 541.7 " 475.9 " 795.7 " 231.1 " 35.05 $ 2.087$ 0.000$ 30
31 0.000$ 58.75 $ 7.926$ 437.5 "1792 " 35.51 $ 0.000$ 31
Mean 0.404$ 0.000$ 18.68 $ 15.67 $ 8.900$ 193.9 $ 624.0 " 651.2 "1030 " 85.16 $ 12.93 $ 0.458$
Median 0.004$ 0.000$ 0.000$ 11.22 $ 8.961$ 186.4 $ 595.3 " 623.8 " 671.6 " 75.30 $ 6.622$ 0.030$
Maximum 2.136$ 0.000$ 134.7 $ 50.02 $ 10.52 $ 541.7 $ 939.5 "1792 "2954 " 217.1 $ 36.60 $ 1.976$
Minimum 0.000$ 0.000$ 0.000$ 5.631$ 7.379$ 6.623$ 410.2 " 339.8 " 231.1 " 35.05 $ 2.087$ 0.000$
Total 12.52$ 0.00$ 579.1 $ 470.2 $ 275.9 $ 5816 $19343 "20188 "30891 " 2640 $ 388.0 $ 14.19$
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 220.9 $ " ... Relative Uncertainty +/-10%
Ann. Median 10.05 $ $ ... Relative Uncertainty +/-20%
Annual Total 80618 $
Maximum Minimum
Daily 2954 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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$ 47.73 $ 362.4 " 353.9 " 196.7 " 150.1 " 25.50 $ 12.84 $ 1
2 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 58.15 $ 357.6 " 328.3 " 223.6 " 150.7 " 29.41 $ 11.83 $ 2
3 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 44.68 $ 367.9 " 325.4 " 231.8 " 143.8 " 30.19 $ 10.43 $ 3
4 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 34.28 $ 392.8 " 339.4 " 220.1 " 133.9 " 29.88 $ 8.980$ 4
5 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 25.55 $ 388.4 " 348.0 " 210.1 " 125.0 " 34.34 $ 7.556$ 5
6 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 19.97 $ 380.7 " 351.8 " 260.1 " 114.2 " 99.98 $ 6.546$ 6
7 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 16.71 $ 405.0 " 363.2 " 940.1 " 106.9 " 130.3 " 5.747$ 7
8 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 14.01 $ 388.7 " 390.0 "1143 " 148.1 " 125.7 " 5.200$ 8
9 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 11.77 $ 355.3 " 402.8 "1085 " 174.0 " 113.0 " 4.690$ 9
10 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 10.02 $ 316.1 " 501.1 "1024 " 156.7 " 114.0 " 4.430$ 10
11 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 13.81 $ 276.0 " 882.7 " 945.8 " 138.0 " 115.1 " 4.275$ 11
12 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 34.25 $ 245.9 " 893.1 " 822.0 " 124.7 " 116.7 " 4.128$ 12
13 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 46.10 $ 242.5 " 718.5 " 630.1 " 113.3 " 119.3 " 3.866$ 13
14 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 39.37 $ 278.4 " 567.1 " 504.5 " 100.4 " 120.4 " 3.420$ 14
15 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 37.36 $ 337.5 " 510.5 " 434.7 " 89.06 " 121.1 " 3.066$ 15
16 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 41.58 $ 370.9 " 516.1 " 386.5 " 79.21 " 111.6 " 2.805$ 16
17 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 44.40 $ 521.9 " 525.3 " 346.0 " 70.71 $ 98.48 " 2.552$ 17
18 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 47.87 $ 527.5 " 477.8 " 312.5 " 63.80 $ 85.56 " 2.359$ 18
19 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 54.77 $ 482.3 " 444.2 " 288.8 " 58.46 $ 74.73 " 2.165$ 19
20 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 51.54 $ 461.7 " 416.4 " 290.9 " 53.43 $ 65.36 $ 1.910$ 20
21 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 46.91 $ 458.2 " 408.3 " 288.9 " 49.81 $ 56.66 $ 1.557$ 21
22 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 48.17 $ 432.6 " 408.7 " 263.5 " 48.64 $ 48.27 $ 1.341$ 22
23 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 113.4 $ 404.6 " 397.8 " 243.5 " 46.07 $ 40.81 $ 1.129$ 23
24 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 179.5 " 385.8 " 370.5 " 228.7 " 42.66 $ 35.01 $ 0.999$ 24
25 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 239.0 " 351.4 " 337.7 " 207.2 " 40.15 $ 28.90 $ 0.825$ 25
26 0.000$ 0.000$ 0.000$ 0.000$ 0.014$ 269.5 " 322.0 " 304.3 " 189.8 " 37.10 $ 24.00 $ 0.582$ 26
27 0.000$ 0.000$ 0.000$ 0.000$ 0.236$ 267.1 " 304.9 " 267.5 " 176.8 " 34.67 $ 19.90 $ 0.314$ 27
28 0.000$ 0.000$ 0.000$ 0.000$ 1.146$ 279.2 " 349.7 " 242.3 " 166.4 " 32.54 $ 18.26 $ 0.151$ 28
29 0.000$ 0.000$ 0.000$ 0.000$ 4.200$ 319.7 " 390.0 " 225.8 " 157.8 " 29.17 $ 16.27 $ 0.097$ 29
30 0.000$ 0.000$ 0.000$ 25.87 $ 355.7 " 404.4 " 210.8 " 151.4 " 26.71 $ 14.41 $ 0.069$ 30
31 0.000$ 0.000$ 43.83 $ 387.6 " 196.5 " 24.11 $ 0.027$ 31
Mean 0.000$ 0.000$ 0.000$ 0.000$ 2.429$ 93.74 $ 375.8 " 420.2 " 419.0 " 87.29 $ 68.77 $ 3.738$
Median 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 46.51 $ 380.7 " 390.0 " 276.1 " 79.21 $ 61.01 $ 2.805$
Maximum 0.000$ 0.000$ 0.000$ 0.000$ 43.83 $ 355.7 $ 527.5 " 893.1 "1143 " 174.0 $ 130.3 $ 12.84 $
Minimum 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 10.02 $ 242.5 " 196.5 " 151.4 " 24.11 $ 14.41 $ 0.027$
Total 0.00$ 0.00$ 0.00$ 0.00$ 75.29$ 2812 $11651 "13026 "12570 " 2706 $ 2063 $ 115.9 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 123.0 $ " ... Relative Uncertainty +/-10%
Ann. Median 13.33 $ $ ... Relative Uncertainty +/-20%
Annual Total 45019 $
Maximum Minimum
Daily 1143 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 0.00$ 0.00$ 0.19$ 7.06$ 84.22" 1001 " 1327 "19566 " 1201 " 771.8 " 336.1 " 76.30" 1
2 0.00$ 0.00$ 0.21$ 6.73$ 90.54" 945.4 " 1299 "18467 " 1227 " 863.9 " 288.3 " 72.03$ 2
3 0.00$ 0.00$ 0.36$ 6.22$ 103.7 " 980.0 " 1224 "16804 " 1233 " 793.1 " 281.6 " 64.12$ 3
4 0.00$ 0.00$ 1.52$ 5.90$ 106.5 " 962.3 " 1166 "16572 " 1211 " 775.2 " 265.9 " 55.60$ 4
5 0.00$ 0.00$ 4.76$ 5.71$ 129.4 " 867.7 " 1435 "16633 " 1142 " 779.4 " 238.1 " 48.65$ 5
6 0.00$ 0.00$ 7.20$ 5.32$ 225.6 " 780.3 " 1818 "13464 " 1054 " 864.3 " 210.7 " 41.79$ 6
7 0.00$ 0.00$ 7.06$ 5.10$ 353.0 " 728.6 " 2739 " 9772 " 984.3 " 826.5 " 189.3 " 36.22$ 7
8 0.00$ 0.00$ 6.57$ 4.94$ 1653 " 676.8 " 3210 " 7332 " 901.1 " 735.0 " 171.6 " 33.08$ 8
9 0.00$ 0.00$ 6.23$ 4.61$ 2164 " 621.0 " 3591 " 6070 " 1221 " 636.6 " 155.4 " 32.18$ 9
10 0.00$ 0.00$ 6.01$ 4.30$ 1337 " 664.7 " 5684 " 5755 " 2472 " 558.3 " 140.1 " 31.22$ 10
11 0.00$ 0.00$ 6.21$ 6.12$ 952.8 " 888.6 " 6444 " 5969 " 3399 " 521.9 " 127.6 " 29.84$ 11
12 0.00$ 0.00$ 6.32$ 252.1 $ 685.0 " 963.8 " 6489 " 6100 " 3925 " 517.2 " 114.6 " 29.16$ 12
13 0.00$ 0.93$ 5.76$ 759.6 " 531.8 " 937.6 " 7165 " 7173 " 4365 " 504.2 " 103.3 " 27.09$ 13
14 0.00$ 4.22$ 5.16$ 799.4 " 534.3 " 870.7 " 6968 " 7085 " 3352 " 495.1 " 92.52" 24.74$ 14
15 0.00$ 4.73$ 4.52$ 443.1 " 535.2 " 815.4 " 6933 " 5970 " 2538 " 485.6 " 83.68" 22.62$ 15
16 0.00$ 5.14$ 4.04$ 331.2 " 483.3 " 737.3 " 7027 " 5433 " 2411 " 457.2 " 77.11" 21.10$ 16
17 0.00$ 4.74$ 3.76$ 298.6 " 410.8 " 688.9 " 6298 " 4655 " 2532 " 430.5 " 72.02" 19.20$ 17
18 0.00$ 4.23$ 3.62$ 315.4 " 366.1 " 620.1 " 5199 " 3869 " 2717 " 406.8 " 67.63$ 18.06$ 18
19 0.00$ 3.47$ 6.12$ 306.2 " 335.3 " 548.2 " 4369 " 3370 " 2657 " 419.4 " 63.19$ 17.54$ 19
20 0.00$ 2.95$ 12.17$ 265.8 " 307.0 " 572.5 " 3965 " 3167 " 2353 " 693.1 " 59.96$ 16.30$ 20
21 0.00$ 2.42$ 17.35$ 223.8 " 279.8 " 1002 " 3919 " 3031 " 1935 " 923.1 " 57.68$ 14.21$ 21
22 0.00$ 1.92$ 19.25$ 189.6 " 263.2 " 1401 " 4353 " 2752 " 1570 " 866.1 " 60.76$ 12.88$ 22
23 0.00$ 1.62$ 18.54$ 160.5 " 321.6 " 1526 " 5105 " 2536 " 1304 " 762.1 " 58.50$ 11.67$ 23
24 0.00$ 1.31$ 17.22$ 137.5 " 457.2 " 1442 " 5767 " 2207 " 1091 " 614.7 " 53.58$ 10.48$ 24
25 0.00$ 1.02$ 15.31$ 118.8 " 659.9 " 1314 " 5841 " 1861 " 956.7 " 481.7 " 57.29$ 9.63$ 25
26 0.00$ 0.78$ 12.25$ 102.6 " 866.4 " 1144 " 5727 " 1644 " 880.3 " 459.8 " 68.82$ 8.32$ 26
27 0.00$ 0.49$ 10.82$ 90.36" 943.9 " 1007 " 6322 " 1520 " 870.4 " 456.9 " 59.93$ 7.18$ 27
28 0.00$ 0.29$ 9.94$ 80.33" 893.2 " 1068 " 6631 " 1428 " 811.1 " 451.3 " 53.32$ 6.64$ 28
29 0.00$ 9.14$ 74.19" 843.9 " 1236 " 8462 " 1356 " 775.2 " 426.1 " 59.61$ 6.13$ 29
30 0.00$ 8.49$ 80.62" 1002 " 1338 "14150 " 1289 " 747.5 " 398.4 " 72.02$ 5.34$ 30
31 0.00$ 7.56$ 1165 " 18612 " 1233 " 371.5 " 4.80$ 31
Mean 0.000$ 1.437$ 7.860$ 169.7 $ 615.7 " 945.0 "5459 "6583 "1795 " 604.7 " 124.7 $ 26.26 $
Median 0.000$ 0.633$ 6.318$ 96.47 $ 483.3 " 941.5 "5684 "5433 "1230 " 521.9 " 80.40 $ 21.10 $
Maximum 0.00$ 5.14$ 19.25$ 799.4 $ 2164 " 1526 "18612 "19566 " 4365 " 923.1 " 336.1 $ 76.30$
Minimum 0.000$ 0.000$ 0.189$ 4.301$ 84.22 " 548.2 "1166 "1233 " 747.5 " 371.5 " 53.32 $ 4.801$
Total 0.0$ 40.2$ 243.7$ 5092 $ 19085 " 28349 "169238 "204084 " 53835 " 18747 " 3740 $ 814.1$
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1379 $ " ... Relative Uncertainty +/-10%
Ann. Median 306.2 $ $ ... Relative Uncertainty +/-20%
Annual Total 503269 $
Maximum Minimum
Daily 19566 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 4.700$ 0.001$ 0.000$ 0.000$ 0.412$ 42.65 $ 251.1 "1422 "1116 " 502.1 " 295.7 " 91.01 " 1
2 4.554$ 0.000$ 0.000$ 0.000$ 0.441$ 39.29 $ 244.4 "1640 "1032 " 455.0 " 296.4 " 86.04 " 2
3 4.237$ 0.000$ 0.000$ 0.002$ 0.498$ 37.56 $ 236.5 "2313 " 974.6 " 371.8 " 329.7 " 80.59 " 3
4 3.783$ 0.000$ 0.000$ 0.001$ 0.506$ 35.44 $ 229.7 "2672 " 926.7 " 338.4 " 363.4 " 77.11 " 4
5 3.483$ 0.000$ 0.000$ 0.000$ 0.468$ 34.83 $ 232.5 "2874 " 896.3 " 325.6 " 376.8 " 73.95 " 5
6 3.255$ 0.000$ 0.000$ 0.000$ 0.435$ 33.65 $ 240.6 "3519 " 879.9 " 317.0 " 365.3 " 70.76 $ 6
7 2.885$ 0.000$ 0.000$ 0.000$ 0.422$ 32.21 $ 238.6 "3836 " 883.0 " 304.8 " 339.5 " 66.77 $ 7
8 2.729$ 0.000$ 0.000$ 0.001$ 0.425$ 30.58 $ 229.6 "3530 "1146 " 289.8 " 307.6 " 64.11 $ 8
9 2.462$ 0.000$ 0.000$ 0.001$ 0.459$ 32.57 $ 227.9 "3524 "1817 " 274.0 " 274.2 " 60.60 $ 9
10 2.144$ 0.000$ 0.000$ 0.024$ 0.470$ 42.14 $ 256.1 "3789 "1696 " 262.5 " 246.7 " 57.14 $ 10
11 1.982$ 0.000$ 0.000$ 0.083$ 0.493$ 71.63 $ 264.3 "3957 "1411 " 250.4 " 236.2 " 52.69 $ 11
12 1.883$ 0.000$ 0.000$ 0.113$ 1.567$ 95.87 " 252.7 "3746 "1196 " 239.9 " 219.5 " 48.88 $ 12
13 1.741$ 0.000$ 0.000$ 0.117$ 2.052$ 112.8 " 254.8 "3510 "1128 " 229.0 " 209.9 " 45.28 $ 13
14 1.536$ 0.000$ 0.000$ 0.115$ 2.151$ 122.3 " 263.0 "3581 "1164 " 220.4 " 198.4 " 42.01 $ 14
15 1.342$ 0.000$ 0.000$ 0.124$ 2.493$ 115.0 " 303.1 "2954 "1192 " 212.5 " 188.0 " 39.32 $ 15
16 1.184$ 0.000$ 0.000$ 0.130$ 2.300$ 110.4 " 371.1 "2744 "1170 " 203.3 " 177.1 " 36.87 $ 16
17 1.009$ 0.000$ 0.000$ 0.124$ 2.083$ 119.6 " 412.5 "3253 "1125 " 194.6 " 164.9 " 34.83 $ 17
18 0.922$ 0.000$ 0.000$ 0.114$ 2.306$ 152.1 " 464.3 "3984 "1131 " 186.4 " 158.3 " 32.96 $ 18
19 0.898$ 0.000$ 0.000$ 0.138$ 2.416$ 213.0 " 519.7 "4725 "1090 " 176.3 " 156.5 " 31.13 $ 19
20 0.841$ 0.000$ 0.000$ 0.149$ 5.041$ 257.1 " 520.1 "6660 "1096 " 163.3 " 150.0 " 29.50 $ 20
21 0.698$ 0.000$ 0.000$ 0.152$ 7.617$ 282.8 " 620.2 "7298 "1034 " 155.2 " 142.4 " 27.51 $ 21
22 0.594$ 0.000$ 0.000$ 0.148$ 12.90 $ 291.0 " 852.3 "5729 " 956.1 " 148.7 " 136.0 " 26.12 $ 22
23 0.478$ 0.000$ 0.000$ 0.141$ 24.75 $ 294.4 " 947.9 "4343 " 891.6 " 144.9 " 130.7 " 25.04 $ 23
24 0.277$ 0.000$ 0.000$ 0.141$ 62.15 $ 333.1 "1183 "3655 " 861.8 " 152.8 " 122.3 " 23.31 $ 24
25 0.160$ 0.000$ 0.000$ 0.151$ 67.56 $ 370.0 "1211 "3156 " 840.5 " 166.6 " 113.4 " 21.25 $ 25
26 0.117$ 0.000$ 0.000$ 0.236$ 72.79 $ 356.0 "1757 "2702 " 791.1 " 183.3 " 108.3 " 19.62 $ 26
27 0.090$ 0.000$ 0.000$ 0.297$ 85.97 " 324.5 "2016 "2215 " 746.9 " 207.1 " 108.4 " 17.79 $ 27
28 0.065$ 0.000$ 0.000$ 0.362$ 80.04 " 296.3 "1992 "1821 " 678.2 " 227.8 " 103.8 " 15.86 $ 28
29 0.057$ 0.000$ 0.386$ 66.62 $ 275.4 "1676 "1554 " 607.3 " 238.9 " 98.40 " 14.53 $ 29
30 0.044$ 0.000$ 0.403$ 56.46 $ 260.2 "1596 "1362 " 545.4 " 261.3 " 93.24 " 13.35 $ 30
31 0.014$ 0.000$ 48.69 $ 1524 "1219 " 281.7 " 11.78 $ 31
Mean 1.618$ 0.000$ 0.000$ 0.122$ 19.77 $ 160.5 $ 689.9 "3332 "1034 " 247.9 " 207.0 " 43.15 $
Median 1.184$ 0.000$ 0.000$ 0.121$ 2.300$ 117.3 $ 371.1 "3510 "1033 " 229.0 " 182.5 " 36.87 $
Maximum 4.700$ 0.001$ 0.000$ 0.403$ 85.97 $ 370.0 $2016 "7298 "1817 " 502.1 " 376.8 " 91.01 $
Minimum 0.014$ 0.000$ 0.000$ 0.000$ 0.412$ 30.58 $ 227.9 "1219 " 545.4 " 144.9 " 93.24 " 11.78 $
Total 50.2$ 0.0$ 0.0$ 3.7$ 613.0$ 4815 $ 21388 "103285 " 31022 " 7685 " 6211 " 1338 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 483.3 $ " ... Relative Uncertainty +/-10%
Ann. Median 67.56 $ $ ... Relative Uncertainty +/-20%
Annual Total 176411 $
Maximum Minimum
Daily 7298 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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 10.40 $ 0.000$ 0.000$ 0.000$ 0.000$ 0.888$ 280.7 " 516.3 " 590.3 " 311.9 " 34.87 $ 0.785$ 1
2 9.029$ 0.000$ 0.000$ 0.000$ 0.000$ 1.567$ 270.1 " 603.4 " 555.9 " 300.2 " 32.54 $ 0.642$ 2
3 7.937$ 0.000$ 0.000$ 0.000$ 0.000$ 3.142$ 262.9 "1991 " 605.8 " 285.0 " 29.64 $ 0.461$ 3
4 6.946$ 0.000$ 0.000$ 0.000$ 0.000$ 45.04 $ 285.5 "2606 " 742.0 " 261.3 " 26.93 $ 0.318$ 4
5 6.209$ 0.000$ 0.000$ 0.000$ 0.000$ 144.7 " 330.6 "2544 " 796.2 " 242.3 " 25.27 $ 0.199$ 5
6 5.528$ 0.000$ 0.000$ 0.000$ 0.000$ 239.6 " 377.8 "2193 " 814.6 " 228.3 " 23.30 $ 0.141$ 6
7 4.725$ 0.000$ 0.000$ 0.000$ 0.000$ 395.9 " 414.2 "2025 " 795.2 " 214.5 " 21.18 $ 0.069$ 7
8 4.339$ 0.000$ 0.000$ 0.000$ 0.000$ 521.7 " 419.8 "1817 " 771.3 " 200.6 " 19.10 $ 0.030$ 8
9 3.885$ 0.000$ 0.000$ 0.000$ 0.000$ 526.7 " 430.8 "1809 " 720.0 " 186.8 " 17.06 $ 0.008$ 9
10 3.518$ 0.000$ 0.000$ 0.000$ 0.001$ 598.1 " 443.7 "2031 " 632.3 " 174.0 " 14.77 $ 0.000$ 10
11 3.144$ 0.000$ 0.000$ 0.000$ 0.000$ 696.3 " 438.2 "2364 " 545.4 " 161.3 " 13.13 $ 0.000$ 11
12 2.795$ 0.000$ 0.000$ 0.000$ 0.001$ 718.6 " 414.1 "2386 " 497.7 " 149.2 " 11.46 $ 0.000$ 12
13 2.529$ 0.000$ 0.000$ 0.000$ 0.007$ 708.6 " 382.7 "2143 " 505.0 " 137.5 " 10.64 $ 0.000$ 13
14 2.003$ 0.000$ 0.000$ 0.000$ 0.011$ 682.4 " 353.5 "1790 " 938.9 " 128.5 " 10.49 $ 0.000$ 14
15 1.670$ 0.000$ 0.000$ 0.000$ 0.015$ 631.4 " 332.4 "1623 "1192 " 119.9 " 10.19 $ 0.000$ 15
16 1.450$ 0.000$ 0.000$ 0.000$ 0.021$ 599.2 " 317.8 "1900 "1214 " 112.6 " 9.187$ 0.000$ 16
17 1.153$ 0.000$ 0.000$ 0.000$ 0.023$ 567.7 " 308.8 "1937 "1312 " 104.4 " 8.030$ 0.000$ 17
18 0.925$ 0.000$ 0.000$ 0.000$ 0.027$ 550.8 " 303.2 "1907 "1440 " 96.09 " 7.041$ 0.000$ 18
19 0.736$ 0.000$ 0.000$ 0.000$ 0.030$ 538.1 " 356.3 "1822 "1212 " 89.29 " 6.323$ 0.000$ 19
20 0.591$ 0.000$ 0.000$ 0.000$ 0.032$ 462.1 " 452.0 "1732 "1002 " 82.69 " 5.535$ 0.000$ 20
21 0.466$ 0.000$ 0.000$ 0.000$ 0.032$ 281.0 " 645.1 "1517 " 889.6 " 76.86 " 4.810$ 0.000$ 21
22 0.330$ 0.000$ 0.000$ 0.000$ 0.037$ 243.3 " 696.7 "1312 " 804.3 " 72.20 " 4.155$ 0.000$ 22
23 0.247$ 0.000$ 0.000$ 0.000$ 0.042$ 243.4 " 651.8 "1183 " 711.7 " 69.85 $ 3.509$ 0.000$ 23
24 0.163$ 0.000$ 0.000$ 0.000$ 0.068$ 260.4 " 633.4 "1108 " 623.2 " 65.55 $ 3.014$ 0.000$ 24
25 0.076$ 0.000$ 0.000$ 0.000$ 0.066$ 286.2 " 637.4 "1052 " 558.7 " 60.27 $ 2.483$ 0.000$ 25
26 0.039$ 0.000$ 0.000$ 0.000$ 0.067$ 310.5 " 562.5 "1004 " 521.5 " 52.34 $ 1.929$ 0.000$ 26
27 0.018$ 0.000$ 0.000$ 0.000$ 0.070$ 307.9 " 453.7 " 948.1 " 480.0 " 47.98 $ 1.548$ 0.000$ 27
28 0.004$ 0.000$ 0.000$ 0.000$ 0.084$ 301.3 " 431.3 " 884.5 " 422.2 " 44.73 $ 1.361$ 0.000$ 28
29 0.001$ 0.000$ 0.000$ 0.093$ 295.9 " 434.5 " 811.7 " 376.8 " 41.83 $ 1.199$ 0.000$ 29
30 0.000$ 0.000$ 0.000$ 0.135$ 288.1 " 450.2 " 731.5 " 340.6 " 39.29 $ 0.999$ 0.000$ 30
31 0.000$ 0.000$ 0.473$ 472.2 " 657.6 " 36.92 $ 0.000$ 31
Mean 2.608$ 0.000$ 0.000$ 0.000$ 0.043$ 381.7 $ 427.2 "1579 " 753.7 " 135.3 $ 12.06 $ 0.086$
Median 1.450$ 0.000$ 0.000$ 0.000$ 0.021$ 309.2 $ 419.8 "1790 " 715.9 " 112.6 $ 9.691$ 0.000$
Maximum 10.40 $ 0.000$ 0.000$ 0.000$ 0.473$ 718.6 $ 696.7 "2606 "1440 " 311.9 $ 34.87 $ 0.785$
Minimum 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.888$ 262.9 " 516.3 " 340.6 " 36.92 $ 0.999$ 0.000$
Total 80.85$ 0.00$ 0.00$ 0.00$ 1.33$11450 $13244 "48949 "22611 " 4194 $ 361.7 $ 2.65$
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 276.4 $ " ... Relative Uncertainty +/-10%
Ann. Median 3.509$ $ ... Relative Uncertainty +/-20%
Annual Total 100895 $
Maximum Minimum
Daily 2606 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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$ 122.9 "1630 "1923 " 166.8 " 49.15 $ 12.35 $ 1
2 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 120.5 "2009 "1666 " 169.2 " 41.51 $ 10.69 $ 2
3 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 117.9 "2001 "1448 " 190.9 " 37.70 $ 9.446$ 3
4 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 122.9 "2054 "1248 " 203.1 " 34.72 $ 8.374$ 4
5 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 129.6 "2173 "1131 " 211.3 " 31.90 $ 7.413$ 5
6 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 135.7 "1737 "1072 " 212.7 " 29.35 $ 6.509$ 6
7 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 7.353$ 141.0 "1429 "1017 " 203.7 " 27.05 $ 5.584$ 7
8 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 12.81 $ 141.7 "1304 " 970.4 " 191.8 " 25.67 $ 4.805$ 8
9 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 58.86 $ 144.3 "1232 " 947.6 " 181.1 " 24.67 $ 4.142$ 9
10 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 141.2 # 158.0 "1254 " 947.4 " 175.1 " 23.13 $ 3.570$ 10
11 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 162.7 # 178.4 "1188 " 887.2 " 175.6 " 21.48 $ 3.285$ 11
12 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 171.4 # 208.2 "1121 " 797.7 " 174.3 " 19.70 $ 3.044$ 12
13 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 243.9 # 222.1 "1020 " 696.9 " 165.9 " 18.04 $ 2.665$ 13
14 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 312.8 # 217.5 "1076 " 607.8 " 155.4 " 16.84 $ 2.396$ 14
15 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 313.8 # 208.1 "1153 " 535.1 " 144.4 " 14.80 $ 1.971$ 15
16 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 289.8 # 205.9 "1164 " 479.5 " 132.9 " 12.73 $ 1.587$ 16
17 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 258.1 # 205.5 "1232 " 416.4 " 122.9 " 11.03 $ 1.322$ 17
18 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 231.1 # 215.4 "1488 " 369.0 " 113.3 " 9.801$ 1.187$ 18
19 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 204.9 # 239.6 "1555 " 337.9 " 105.7 " 16.42 $ 0.895$ 19
20 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 188.7 # 260.7 "1582 " 313.0 " 99.42 " 145.3 $ 0.557$ 20
21 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 177.1 # 266.1 "1645 " 291.2 " 96.89 " 154.7 " 0.381$ 21
22 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 169.7 # 258.6 "1838 " 269.1 " 91.36 " 84.15 $ 0.207$ 22
23 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 164.2 # 358.3 "2316 " 248.8 " 86.42 " 55.29 $ 0.125$ 23
24 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 158.8 # 693.5 "2755 " 232.4 " 81.83 " 42.87 $ 0.041$ 24
25 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 155.9 # 939.3 "3314 " 216.8 " 76.70 " 34.50 $ 0.007$ 25
26 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 155.5 #1467 "3735 " 203.9 " 71.35 $ 27.64 $ 0.000$ 26
27 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 156.8 #1955 "3854 " 195.7 " 66.42 $ 23.02 $ 0.000$ 27
28 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 155.7 #1631 "3797 " 189.3 " 62.87 $ 19.37 $ 0.000$ 28
29 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 142.2 #1431 "3231 " 182.9 " 60.09 $ 16.42 $ 0.000$ 29
30 0.000$ 0.000$ 0.000$ 0.000$ 129.7 #1305 "2677 " 174.4 " 57.15 $ 14.47 $ 0.000$ 30
31 0.000$ 0.000$ 0.000$ 1292 "2234 " 54.66 $ 0.000$ 31
Mean 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 138.8 $ 486.8 "1961 " 667.2 " 132.3 $ 36.11 $ 2.986$
Median 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 156.3 $ 215.4 "1645 " 507.3 " 132.9 $ 25.17 $ 1.587$
Maximum 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 313.8 $1955 "3854 "1923 " 212.7 $ 154.7 $ 12.35 $
Minimum 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 0.000$ 117.9 "1020 " 174.4 " 54.66 $ 9.801$ 0.000$
Total 0.00$ 0.00$ 0.00$ 0.00$ 0.00$ 4163 $15091 "60797 "20015 " 4101 $ 1083 $ 92.56$
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 287.8 $ " ... Relative Uncertainty +/-10%
Ann. Median 6.047$ # ... Relative Uncertainty +/-15%
Annual Total 105344 $ $ ... Relative Uncertainty +/-20%
Maximum Minimum
Daily 3854 $ 0.000$
Department of Water and Environmental Regulation HYDAY V146 Output 14/11/2025
Site 609059 Blackwood River - Flax Mill 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$ 6.555$ 24.60 $ 184.2 $ 938.6 "1616 " 429.2 " 80.60 " [ ] 1
2 0.000$ 0.000$ 0.000$ 0.000$ 6.680$ 30.65 $ 187.0 $1209 "1361 " 419.6 " 78.63 " [ ] 2
3 0.000$ 0.000$ 0.000$ 0.000$ 7.539$ 40.84 $ 672.3 #2033 "1194 " 385.1 # 74.96 " [ ] 3
4 0.000$ 0.000$ 0.000$ 1.210$ 7.941$ 91.40 $ 531.8 "2563 "1078 " 360.7 # 70.79 $ [ ] 4
5 0.000$ 0.000$ 0.000$ 2.458$ 8.900$ 172.7 $ 506.0 "2393 "1101 " 369.3 # 69.88 $ [ ] 5
6 0.000$ 0.000$ 0.000$ 2.650$ 9.150$ 164.5 $ 442.6 "2342 "1740 " 373.0 # 71.33 " [ ] 6
7 0.000$ 0.000$ 0.000$ 2.789$ 8.849$ 147.6 $ 472.0 "2174 "1893 " 364.1 # 69.63 $ [ ] 7
8 0.000$ 0.000$ 0.000$ 2.841$ 8.422$ 127.8 $ 498.8 "1889 "2142 " 361.7 # 67.68 $ [ ] 8
9 0.000$ 0.000$ 0.000$ 2.422$ 8.052$ 103.3 $ 483.6 "1804 "2105 " 341.8 # 64.68 $ [ ] 9
10 0.000$ 0.000$ 0.000$ 3.873$ 7.730$ 95.97 $ 462.7 "2069 "2008 " 313.5 # 60.86 $ [ ] 10
11 0.000$ 0.000$ 0.000$ 5.372$ 7.383$ 108.3 $ 437.0 "2137 "1578 " 286.0 $ 56.78 $ [ ] 11
12 0.000$ 0.000$ 0.000$ 7.098$ 7.296$ 109.2 $ 534.4 "1938 "1230 " 261.3 $ 52.84 $ [ ] 12
13 0.000$ 0.000$ 0.000$ 9.023$ 7.377$ 120.8 $ 808.7 "1709 "1089 " 242.6 $ [ ] [ ] 13
14 0.000$ 0.000$ 0.000$ 10.86 $ 7.369$ 130.5 $ 788.4 "2014 "1355 " 225.5 $ [ ] [ ] 14
15 0.000$ 0.000$ 0.000$ 11.98 $ 7.437$ 127.9 $ 580.9 "1781 "1707 " 207.4 $ [ ] [ ] 15
16 0.000$ 0.000$ 0.000$ 12.44 $ 7.417$ 119.4 $ 504.0 "1473 "1697 " 190.3 $ [ ] [ ] 16
17 0.000$ 0.000$ 0.000$ 12.17 $ 7.328$ 118.5 $ 495.8 "1246 "1591 " 175.8 $ [ ] [ ] 17
18 0.000$ 0.000$ 0.000$ 11.58 $ 7.078$ 125.3 $ 474.0 "1212 "1770 " 167.2 $ [ ] [ ] 18
19 0.000$ 0.000$ 0.000$ 10.48 $ 6.907$ 133.8 $ 466.4 "2186 "1780 " 158.6 $ [ ] [ ] 19
20 0.000$ 0.000$ 0.000$ 9.467$ 6.644$ 141.6 $ 465.3 "2870 "1436 " 152.4 $ [ ] [ ] 20
21 0.000$ 0.000$ 0.000$ 8.458$ 6.427$ 165.2 $ 694.9 "2596 "1139 " 147.4 $ [ ] [ ] 21
22 0.000$ 0.000$ 0.000$ 7.813$ 6.324$ 205.7 $ 667.0 "2331 " 988.5 " 139.6 $ [ ] [ ] 22
23 0.000$ 0.000$ 0.000$ 8.687$ 6.510$ 232.3 $ 676.0 "2340 " 890.4 " 133.7 $ [ ] [ ] 23
24 0.000$ 0.000$ 0.000$ 8.307$ 6.475$ 234.7 $ 984.4 "2355 " 807.9 " 125.7 " [ ] [ ] 24
25 0.000$ 0.000$ 0.000$ 7.836$ 6.782$ 229.7 $ 999.4 "2785 " 734.4 " 124.7 " [ ] [ ] 25
26 0.000$ 0.000$ 0.000$ 7.591$ 7.058$ 222.4 $ 948.4 "3033 " 651.5 " 119.8 " [ ] [ ] 26
27 0.000$ 0.000$ 0.000$ 7.420$ 7.320$ 222.7 $ 945.5 "2976 " 565.0 " 110.2 " [ ] [ ] 27
28 0.000$ 0.000$ 0.000$ 7.142$ 7.683$ 219.2 $1385 "2988 " 519.8 " 101.3 " [ ] [ ] 28
29 0.000$ 0.000$ 6.743$ 8.118$ 207.6 $1283 "2851 " 488.7 " 93.04 " [ ] [ ] 29
30 0.000$ 0.000$ 6.617$ 10.37 $ 194.2 $1105 "2481 " 451.0 " 86.38 " [ ] [ ] 30
31 0.000$ 0.000$ 17.77 $ 1005 "1989 " 80.91 " [ ] 31
Mean 0.000$ 0.000$ 0.000$ 6.511$ 7.835$ 145.6 $ 667.4 $2152 "1290 " 227.4 $ 68.22 $ [ ]
Median 0.000$ 0.000$ 0.000$ 7.281$ 7.377$ 132.1 $ 534.4 $2174 "1293 " 190.3 $ 69.76 $ [ ]
Maximum 0.000$ 0.000$ 0.000$ 12.44 $ 17.77 $ 234.7 $1385 $3033 "2142 " 429.2 $ 80.60 $ [ ]
Minimum 0.000$ 0.000$ 0.000$ 0.000$ 6.324$ 24.60 $ 184.2 $ 938.6 " 451.0 " 80.91 $ 52.84 $ [ ]
Total 0.00$ 0.00$ 0.00$ 195.3 $ 242.9 $ 4369 $20690 $66704 "38709 " 7048 $ 818.7 $ [ ]
Missing Days 0 0 0 0 0 0 0 0 0 0 18 31
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 439.2 $ " ... Relative Uncertainty +/-10%
Ann. Median 66.18 $ # ... Relative Uncertainty +/-15%
Annual Total 138776 $ $ ... Relative Uncertainty +/-20%
Missing Days 49 [ ... Not Available
Maximum Minimum
Daily 3033 $ 0.000$