Water Information Reporting
Copyright © Government of Western Australia
Information supplied by the Department of Water and Environmental Regulation is protected by the Copyright Act 1968. That copyright belongs to the State of Western Australia.
Apart from any fair dealing for the purpose of private study, research, criticism or review, as permitted under the Copyright Act 1968, no part may be
reproduced or reused for any purpose without the written permission of the Department of Water and Environmental Regulation. Please click on the Copyright
link for full details.
Disclaimer / limitation of liability
The information contained herein is provided by the Department of Water and Environmental Regulation in good faith as a public service.
However, the Department does not guarantee the accuracy of this information, and it is the responsibility of recipients to make their own enquiries
as to its accuracy, currency and appropriateness. Telemetered data is provisional only and has not been verified for accuracy. If any aspect of this information is of significance to you, you should
discuss your particular circumstances with the Department. Please click on the Disclaimer
link for full details.
Should you require further information or technical assistance, please contact one of our water information officers.
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 [ ] 84.86 " 50.34 " 48.54 " 65.69 " 114.2 " 166.8 " 675.5 "3025 " 578.7 " 169.3 " 79.17 " 1
2 [ ] 86.07 " 50.38 " 47.17 " 65.27 " 117.5 " 168.7 " 763.1 "2931 " 536.6 " 162.9 " 77.36 " 2
3 [ ] 89.30 " 50.70 " 46.44 " 64.63 " 122.0 " 177.9 " 856.0 "2668 " 519.2 " 156.8 " 76.58 " 3
4 [ ] 89.32 " 50.04 " 45.57 " 64.57 " 133.6 " 181.9 " 869.2 "2332 " 523.4 " 151.0 " 75.28 " 4
5 [ ] 86.57 " 48.75 " 44.85 " 65.03 " 131.1 " 182.9 " 869.0 "2176 " 544.9 " 145.9 " 72.82 " 5
6 [ ] 83.48 " 47.66 " 44.25 " 66.78 " 126.1 " 184.0 " 856.6 "2011 " 542.4 " 142.1 " 70.58 " 6
7 [ ] 81.65 " 46.81 " 44.00 " 67.16 " 124.6 " 193.2 " 939.6 "1829 " 520.6 " 138.2 " 68.89 " 7
8 [ ] 81.37 " 46.11 " 43.53 " 66.92 " 121.8 " 198.7 "1189 "1659 " 498.9 " 133.4 " 68.64 " 8
9 [ ] 80.02 " 46.16 " 43.57 " 68.55 " 119.5 " 195.3 "1392 "1509 " 457.0 " 131.9 " 65.63 " 9
10 [ ] 75.92 " 46.38 " 43.80 " 70.29 " 140.1 " 192.9 "1476 "1367 " 423.7 " 129.4 " 63.30 " 10
11 [ ] 72.24 " 46.09 " 44.55 " 70.99 " 155.2 " 194.0 "1334 "1268 " 408.8 " 130.0 " 62.16 " 11
12 [ ] 69.42 " 44.73 " 44.96 " 70.38 " 152.1 " 194.9 "1224 "1240 " 409.1 " 131.2 " 60.87 " 12
13 [ ] 66.84 " 43.25 " 46.02 " 69.76 " 148.8 " 193.9 "1382 "1289 " 419.1 " 126.3 " 59.38 " 13
14 80.72 " 64.93 " 42.09 " 46.68 " 68.81 " 142.6 " 192.6 "1321 "1306 " 420.1 " 121.4 " 57.51 " 14
15 78.78 " 63.86 " 41.79 " 46.97 " 70.80 " 144.0 " 189.1 "1180 "1311 " 410.8 " 118.4 " 55.86 " 15
16 76.85 " 63.07 " 41.49 " 47.68 " 75.06 " 150.5 " 186.1 "1111 "1468 " 399.1 " 115.8 " 54.74 " 16
17 75.31 " 61.63 " 41.17 " 48.51 " 85.88 " 157.4 " 181.0 "1108 "1426 " 380.0 " 113.0 " 53.92 " 17
18 75.35 " 59.76 " 41.24 " 48.80 " 91.80 " 149.5 " 174.2 "1213 "1309 " 355.5 " 106.9 " 53.13 " 18
19 73.86 " 58.05 " 41.23 " 49.82 " 92.28 " 142.9 " 168.3 "1233 "1219 " 332.6 " 103.1 " 52.28 " 19
20 70.91 " 56.98 " 40.82 " 50.51 " 89.84 " 138.8 " 174.8 "1417 "1156 " 314.6 " 100.6 " 51.62 " 20
21 68.45 " 56.85 " 40.78 " 51.11 " 86.48 " 138.1 " 206.1 "1888 "1091 " 309.8 " 99.03 " 51.27 " 21
22 66.63 " 55.87 " 43.09 " 51.51 " 83.81 " 142.4 " 224.5 "2056 "1037 " 295.1 " 96.68 " 49.69 " 22
23 65.51 " 55.18 " 52.01 " 52.96 " 85.84 " 144.6 " 284.4 "2338 " 990.0 " 277.9 " 94.29 " 48.05 " 23
24 67.03 " 53.90 " 51.24 " 53.68 " 91.10 " 153.3 " 297.6 "3320 " 930.0 " 259.6 " 91.40 " 46.15 " 24
25 80.76 " 52.74 " 49.04 " 56.62 " 88.08 " 163.5 " 353.3 "3870 " 870.0 " 243.0 " 88.64 " 44.76 " 25
26 84.18 " 52.06 " 46.90 " 59.93 " 85.77 " 162.4 " 436.3 "4029 " 810.2 " 228.1 " 85.41 " 43.80 " 26
27 87.03 " 51.42 " 45.84 " 60.62 " 87.96 " 160.4 " 428.5 "4628 " 750.6 " 215.6 " 82.32 " 42.83 " 27
28 95.33 " 51.02 " 49.14 " 63.58 " 90.97 " 160.9 " 495.6 "4633 " 701.2 " 205.1 " 80.52 " 41.94 " 28
29 94.46 " 53.81 " 64.68 " 93.06 " 158.7 " 610.6 "4348 " 658.6 " 195.4 " 83.89 " 41.66 " 29
30 89.34 " 52.70 " 65.13 " 98.65 " 164.7 " 627.3 "3970 " 623.0 " 186.0 " 81.45 " 40.66 " 30
31 85.86 " 50.44 " 107.7 " 672.0 "3339 " 176.9 " 39.58 " 31
Mean 78.69 " 68.01 " 46.52 " 50.20 " 79.03 " 142.7 " 268.6 "1962 "1432 " 373.8 " 117.0 " 57.10 "
Median 77.81 " 64.39 " 46.38 " 48.10 " 75.06 " 143.4 " 193.9 "1334 "1297 " 399.1 " 117.1 " 54.74 "
Maximum 95.33 " 89.32 " 53.81 " 65.13 " 107.7 " 164.7 " 672.0 "4633 "3025 " 578.7 " 169.3 " 79.17 "
Minimum 65.51 " 51.02 " 40.78 " 43.53 " 64.57 " 114.2 " 166.8 " 675.5 " 623.0 " 176.9 " 80.52 " 39.58 "
Total 1416 " 1904 " 1442 " 1506 " 2450 " 4281 " 8327 "60829 "42960 "11588 " 3511 " 1770 "
Missing Days 13 0 0 0 0 0 0 0 0 0 0 0
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 403.4 " " ... Relative Uncertainty +/-10%
Ann. Median 97.66 " [ ... Not Available
Annual Total 141986 "
Missing Days 13
Maximum Minimum
Daily 4633 " 39.58 "
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 38.93 " 34.64 " 32.69 " 32.23 " 53.81 " 68.22 " 295.1 "5272 "5260 "2941 " 733.4 " 115.2 " 1
2 41.13 " 33.43 " 33.21 " 32.64 " 52.54 " 69.16 " 377.6 "6685 "4988 "2538 " 681.6 " 110.2 " 2
3 43.78 " 32.82 " 32.26 " 32.66 " 51.93 " 66.88 " 468.1 "6335 "4763 "2188 " 627.5 " 107.9 " 3
4 41.99 " 32.15 " 32.53 " 32.77 " 50.81 " 64.47 " 538.9 "6005 "4491 "1922 " 576.9 " 103.8 " 4
5 40.73 " 31.02 " 32.96 " 33.19 " 51.33 " 61.87 " 591.9 "5393 "4149 "1700 " 526.2 " 102.9 " 5
6 40.40 " 30.28 " 32.43 " 33.40 " 52.58 " 60.85 " 654.4 "4748 "3971 "1514 " 478.2 " 103.4 " 6
7 45.28 " 29.79 " 31.72 " 33.50 " 51.38 " 61.13 " 635.1 "4682 "3573 "1357 " 441.1 " 101.3 " 7
8 60.64 " 29.80 " 31.54 " 35.77 " 49.73 " 61.99 " 648.8 "4927 "3268 "1243 " 412.6 " 98.99 " 8
9 62.45 " 29.66 " 31.52 " 35.93 " 49.01 " 62.12 " 726.1 "4705 "3444 "1274 " 386.0 " 96.98 " 9
10 60.81 " 29.64 " 31.23 " 34.98 " 48.51 " 61.37 " 869.8 "4041 "3479 "1461 " 361.9 " 94.99 " 10
11 58.16 " 29.52 " 31.19 " 34.34 " 48.16 " 61.38 "1076 "3666 "3132 "1627 " 339.8 " 92.50 " 11
12 55.81 " 29.38 " 30.99 " 33.89 " 48.64 " 61.92 "1092 "3572 "2846 "1653 " 317.7 " 89.85 " 12
13 53.87 " 28.97 " 30.53 " 33.60 " 49.58 " 67.07 " 993.2 "3485 "2876 "1530 " 295.9 " 86.95 " 13
14 52.63 " 28.88 " 30.41 " 33.52 " 48.77 " 79.61 " 883.7 "3364 "3158 "1409 " 273.5 " 82.79 " 14
15 51.11 " 29.27 " 30.26 " 39.23 " 50.93 " 87.96 " 778.5 "3266 "3509 "1283 " 251.4 " 79.17 " 15
16 49.54 " 29.21 " 29.83 " 41.11 " 55.47 " 126.4 " 694.2 "3115 "3835 "1169 " 231.9 " 80.40 " 16
17 48.10 " 29.79 " 29.91 " 41.34 " 57.98 " 130.2 " 625.0 "2979 "3994 "1392 " 216.8 " 89.50 " 17
18 47.09 " 29.50 " 29.90 " 41.00 " 59.13 " 110.7 " 565.0 "2801 "4055 "1505 " 208.5 " 94.26 " 18
19 46.13 " 29.50 " 30.68 " 40.34 " 58.70 " 101.0 " 539.7 "2553 "4354 "1383 " 199.2 " 91.01 " 19
20 45.31 " 29.54 " 30.90 " 40.48 " 58.48 " 95.56 " 540.3 "2422 "4545 "1261 " 191.3 " 91.30 " 20
21 44.24 " 30.03 " 32.13 " 41.59 " 57.70 " 91.72 " 573.7 "2348 "4262 "1176 " 181.9 " 103.1 " 21
22 43.27 " 29.58 " 32.17 " 43.36 " 56.94 " 92.01 " 655.0 "2274 "4018 "1112 " 174.6 " 103.0 " 22
23 42.35 " 29.52 " 32.66 " 47.89 " 57.22 " 95.81 " 843.9 "2208 "3892 "1037 " 167.9 " 96.22 " 23
24 41.31 " 29.40 " 30.12 " 46.19 " 57.07 " 97.91 "1063 "2286 "3668 " 951.1 " 161.1 " 92.93 " 24
25 40.48 " 29.11 " 29.70 " 44.81 " 56.79 " 97.88 "1345 "2631 "4039 " 882.2 " 152.6 " 94.71 " 25
26 39.33 " 29.38 " 31.55 " 45.42 " 58.69 " 105.1 "1883 "2572 "4612 " 827.5 " 141.0 " 97.46 " 26
27 37.71 " 30.22 " 33.26 " 43.55 " 60.18 " 114.6 "1962 "2527 "4622 " 800.1 " 133.8 " 96.81 " 27
28 36.75 " 31.42 " 32.59 " 42.51 " 64.46 " 125.6 "2051 "2967 "4251 " 818.4 " 127.3 " 94.48 " 28
29 36.16 " 32.12 " 44.31 " 64.48 " 140.7 "2496 "3279 "3855 " 827.2 " 121.9 " 90.30 " 29
30 35.64 " 31.83 " 49.34 " 64.01 " 223.3 "3060 "3668 "3368 " 796.5 " 118.6 " 88.95 " 30
31 35.39 " 31.65 " 65.33 " 3585 "4672 " 765.8 " 106.3 " 31
Mean 45.69 " 30.19 " 31.50 " 38.83 " 55.17 " 91.48 "1068 "3724 "3943 "1366 " 307.7 " 96.05 "
Median 43.78 " 29.61 " 31.55 " 39.79 " 55.47 " 89.84 " 726.1 "3364 "3983 "1283 " 241.6 " 94.99 "
Maximum 62.45 " 34.64 " 33.26 " 49.34 " 65.33 " 223.3 "3585 "6685 "5260 "2941 " 733.4 " 115.2 "
Minimum 35.39 " 28.88 " 29.70 " 32.23 " 48.16 " 60.85 " 295.1 "2208 "2846 " 765.8 " 118.6 " 79.17 "
Total 1417 " 845.5" 976.5" 1165 " 1710 " 2744 " 33111 "115449 "118281 " 42344 " 9232 " 2978 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 904.8 " " ... Relative Uncertainty +/-10%
Ann. Median 94.71 "
Annual Total 330253 "
Maximum Minimum
Daily 6685 " 28.88 "
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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
1 111.9 " 35.40" 33.40" 35.79" 48.57" 895.5 " 1685 " 9982 " 1024 " 898.6 " 467.1 " 405.1 " 1
2 105.8 " 34.91" 33.59" 35.47" 61.84" 1316 " 1598 "10572 " 1020 " 905.8 " 440.1 " 395.5 " 2
3 100.6 " 34.62" 33.48" 35.76" 85.56" 2210 " 1497 "11687 " 1005 " 904.0 " 413.4 " 369.1 " 3
4 94.76" 34.26" 33.26" 35.72" 104.6 " 1645 " 1376 "12622 " 971.2 " 884.1 " 398.2 " 349.2 " 4
5 88.44" 33.98" 33.58" 36.06" 106.8 " 1233 " 1274 "12728 " 943.6 " 859.3 " 391.9 " 345.7 " 5
6 82.31" 33.19" 34.01" 38.80" 104.0 " 1059 " 1228 "12490 " 902.8 " 836.9 " 402.8 " 348.9 " 6
7 77.13" 32.40" 35.99" 38.75" 100.3 " 955.4 " 1294 "11270 " 855.6 " 808.3 " 428.2 " 338.6 " 7
8 73.32" 32.94" 36.26" 42.98" 97.14" 967.0 " 1298 " 9700 " 810.9 " 780.2 " 464.5 " 315.3 " 8
9 70.24" 32.47" 35.53" 42.14" 95.18" 1118 " 1218 " 8444 " 766.6 " 727.1 " 445.1 " 293.6 " 9
10 67.08" 32.25" 34.34" 44.16" 101.1 " 1245 " 1150 " 7148 " 735.9 " 666.7 " 415.9 " 268.3 " 10
11 63.88" 32.28" 33.40# 41.96" 105.4 " 1226 " 1142 " 5875 " 713.0 " 617.9 " 394.1 " 251.1 " 11
12 61.55" 31.61" 33.08# 39.96" 106.0 " 1183 " 1246 " 4843 " 696.8 " 577.3 " 370.1 " 229.7 " 12
13 59.71" 30.81" 33.15# 39.03" 113.7 " 1137 " 1402 " 4137 " 688.5 " 547.6 " 344.9 " 212.1 " 13
14 57.79" 30.50" 32.47" 39.23" 118.4 " 1059 " 1487 " 3637 " 691.4 " 519.7 " 321.0 " 199.0 " 14
15 55.79" 31.10" 32.04" 41.09" 117.6 " 1088 " 1526 " 3246 " 680.8 " 488.5 " 298.5 " 189.0 " 15
16 53.72" 31.78" 31.93" 41.81" 125.5 " 1250 " 1822 " 2910 " 652.3 " 465.0 " 275.1 " 182.2 " 16
17 51.90" 32.13" 31.73" 43.27" 128.9 " 1608 " 2531 " 2591 " 639.6 " 445.4 " 254.8 " 174.9 " 17
18 50.32" 32.81" 31.58" 44.32" 131.9 " 1694 " 3157 " 2312 " 650.8 " 425.5 " 237.7 " 165.8 " 18
19 48.90" 32.31" 31.50" 43.96" 140.7 " 1609 " 3816 " 2083 " 658.5 " 405.5 " 222.1 " 155.6 " 19
20 47.77" 32.00" 31.26" 45.67" 147.2 " 1432 " 5008 " 1899 " 674.7 " 387.2 " 215.0 " 151.4 " 20
21 46.59" 31.87" 31.01" 45.82" 146.9 " 1296 " 6196 " 1737 " 714.8 " 372.7 " 201.2 " 149.7 " 21
22 45.35" 31.85" 30.89" 44.26" 157.1 " 1170 " 7477 " 1605 " 776.1 " 361.0 " 200.2 " 157.7 " 22
23 44.56" 31.94" 30.69" 45.75" 172.3 " 1070 " 8592 " 1489 " 771.4 " 349.4 " 231.4 " 150.5 " 23
24 43.93" 32.22" 30.59" 45.84" 210.4 " 984.9 " 8823 " 1392 " 744.1 " 351.8 " 285.8 " 143.1 " 24
25 42.97" 32.29" 30.58" 45.13" 295.8 " 936.3 " 9922 " 1309 " 807.3 " 365.3 " 286.9 " 133.3 " 25
26 41.84" 31.92" 31.59" 46.99" 368.5 " 935.9 "10367 " 1233 " 921.2 " 394.0 " 270.0 " 124.3 " 26
27 40.30" 32.21" 32.18" 48.25" 397.1 " 941.9 " 9543 " 1159 " 989.1 " 414.3 " 272.6 " 117.8 " 27
28 39.66" 32.52" 30.93" 47.86" 469.1 " 976.5 " 8629 " 1101 " 1026 " 413.1 " 310.8 " 112.7 " 28
29 38.59" 32.75" 29.86" 49.61" 504.5 " 1080 " 8080 " 1073 " 983.1 " 430.7 " 301.2 " 107.1 " 29
30 37.42" 29.75" 50.83" 649.0 " 1448 " 8810 " 1086 " 910.6 " 466.8 " 332.0 " 104.2 " 30
31 36.47" 31.92" 752.5 " 9690 " 1049 " 473.2 " 104.2 " 31
Mean 60.66 " 32.53 " 32.44 # 42.54 " 202.1 "1226 "4287 "4981 " 814.2 " 565.9 " 329.8 " 217.6 "
Median 53.72 " 32.28 " 32.04 # 43.12 " 125.5 "1154 "1822 "2910 " 773.7 " 473.2 " 315.9 " 182.2 "
Maximum 111.9 " 35.40" 36.26# 50.83" 752.5 " 2210 "10367 "12728 " 1026 " 905.8 " 467.1 " 405.1 "
Minimum 36.47 " 30.50 " 29.75 # 35.47 " 48.57 " 895.5 "1142 "1049 " 639.6 " 349.4 " 200.2 " 104.2 "
Total 1880 " 943.3" 1006 # 1276 " 6264 " 36767 "132882 "154410 " 24425 " 17543 " 9893 " 6745 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1077 # " ... Relative Uncertainty +/-10%
Ann. Median 306.0 # # ... Relative Uncertainty +/-15%
Annual Total 394034 #
Maximum Minimum
Daily 12728 # 29.75 #
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 99.40" 41.48" 33.91" 35.64" 31.84" 265.8 " 3615 " 7511 " 3081 " 3803 " 426.7 " 211.0 " 1
2 93.98" 40.97" 34.69" 36.29" 31.72" 250.3 " 4678 " 6243 " 2929 " 3500 " 405.9 " 197.6 " 2
3 88.14" 40.31" 34.58" 36.46" 31.97" 240.0 " 5514 " 5246 " 2885 " 3177 " 385.8 " 185.7 " 3
4 83.63" 39.70" 34.56" 36.08" 32.77" 214.9 " 5625 " 4500 " 2733 " 2900 " 365.0 " 174.4 " 4
5 80.39" 39.00" 34.43" 35.84" 32.76" 198.5 " 5325 " 3992 " 2608 " 2600 " 346.3 " 164.0 " 5
6 76.25" 38.23" 33.90" 35.57" 32.88" 192.6 " 5039 " 3663 " 2651 " 2326 " 331.4 " 155.6 " 6
7 71.71" 38.18" 33.94" 35.24" 32.94" 191.0 " 4480 " 3546 " 2646 " 2072 " 320.6 " 146.7 " 7
8 68.13" 37.44" 33.67" 35.17" 33.09" 180.7 " 3688 " 3478 " 2704 " 1861 " 307.5 " 138.6 " 8
9 65.54" 36.65" 33.42" 35.19" 34.53" 169.7 " 3108 " 3296 " 2831 " 1703 " 295.4 " 130.5 " 9
10 64.11" 35.71" 33.30" 34.94" 37.86" 174.7 " 2994 " 3086 " 2904 " 1580 " 281.5 " 123.7 " 10
11 62.60" 35.37" 32.98" 34.34" 38.96" 174.4 " 3441 " 3011 " 3338 " 1463 " 266.5 " 117.1 " 11
12 60.57" 35.04" 32.96" 33.53" 38.69" 169.6 " 3825 " 2960 " 4595 " 1355 " 267.3 " 111.8 " 12
13 59.30" 34.95" 32.53" 32.85" 39.44" 174.5 " 3646 " 2966 " 5605 " 1256 " 388.4 " 107.3 " 13
14 57.46" 34.72" 32.23" 32.64" 38.95" 169.2 " 3694 " 3082 " 5591 " 1179 " 461.3 " 102.9 " 14
15 56.13" 34.37" 32.00" 32.35" 37.73" 167.0 " 3783 " 3547 " 5325 " 1113 " 418.4 " 98.59" 15
16 54.57" 34.10" 31.84" 32.30" 37.26" 175.5 " 3656 " 4610 " 5287 " 1048 " 409.9 " 94.07" 16
17 53.25" 33.99" 32.24" 32.18" 36.96" 180.2 " 3576 " 6288 " 5133 " 980.7 " 403.7 " 91.24" 17
18 52.33" 33.61" 31.98" 32.17" 36.62" 187.0 " 3541 " 8869 " 4974 " 916.6 " 403.6 " 89.43" 18
19 50.55" 33.04" 32.31" 32.17" 36.60" 197.9 " 3824 "10309 " 5163 " 858.3 " 410.1 " 87.87" 19
20 49.09" 32.88" 33.14" 32.16" 39.21" 239.0 " 5219 "10307 " 5351 " 795.2 " 453.1 " 84.42" 20
21 48.16" 32.50" 33.72" 32.09" 53.79" 417.7 " 7645 "10351 " 5267 " 740.1 " 491.1 " 81.29" 21
22 47.85" 31.92" 33.37" 31.81" 68.00" 596.3 "10187 "10166 " 5592 " 693.1 " 481.5 " 78.69" 22
23 47.34" 31.53" 33.32" 31.25" 77.22" 669.1 "12592 " 9057 " 5926 " 651.1 " 454.8 " 75.48" 23
24 45.89" 31.69" 33.42" 31.71" 97.76" 670.7 "14624 " 7782 " 5997 " 612.6 " 423.1 " 72.35" 24
25 44.77" 33.33" 33.47" 32.12" 190.4 " 691.1 "14911 " 7080 " 5663 " 570.3 " 378.4 " 69.86" 25
26 44.35" 33.93" 32.98" 32.20" 364.1 " 710.4 "14798 " 6419 " 5055 " 529.6 " 331.8 " 67.26" 26
27 43.74" 33.59" 32.73" 32.13" 294.3 " 760.3 "14764 " 5496 " 4452 " 502.9 " 297.3 " 65.29" 27
28 43.22" 33.16" 33.48" 31.97" 243.1 " 820.8 "13450 " 4689 " 4037 " 505.5 " 268.7 " 64.03" 28
29 42.71" 34.08" 31.86" 211.2 " 1042 "11826 " 4178 " 3968 " 494.2 " 245.0 " 63.47" 29
30 42.04" 34.34" 31.88" 181.6 " 1880 "10529 " 3762 " 3944 " 475.6 " 225.7 " 63.77" 30
31 41.87" 34.89" 212.2 " 8985 " 3384 " 452.2 " 62.78" 31
Mean 59.33 " 35.41 " 33.37 " 33.40 " 87.31 " 405.7 "6987 "5577 "4274 "1378 " 364.9 " 108.9 "
Median 54.57 " 34.54 " 33.42 " 32.32 " 38.69 " 206.7 "5039 "4610 "4524 "1048 " 382.1 " 94.07 "
Maximum 99.40" 41.48" 34.89" 36.46" 364.1 " 1880 "14911 "10351 " 5997 " 3803 " 491.1 " 211.0 "
Minimum 41.87 " 31.53 " 31.84 " 31.25 " 31.72 " 167.0 "2994 "2960 "2608 " 452.2 " 225.7 " 62.78 "
Total 1839 " 991.4" 1034 " 1002 " 2707 " 12170 "216582 "172874 "128235 " 42713 " 10946 " 3377 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1629 " " ... Relative Uncertainty +/-10%
Ann. Median 181.6 "
Annual Total 594470 "
Maximum Minimum
Daily 14911 " 31.25 "
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 60.93 " 33.79 " 27.63 " 30.17 " 114.3 " 173.1 " 199.8 " 490.8 " 390.8 " 173.6 " 75.80 " 62.40 " 1
2 59.29 " 33.86 " 27.57 " 30.40 " 109.5 " 181.9 " 213.8 " 475.3 " 379.6 " 167.3 " 73.86 " 59.32 " 2
3 57.66 " 33.69 " 27.57 " 30.63 " 106.0 " 179.8 " 263.7 " 467.5 " 369.0 " 161.5 " 71.80 " 59.88 " 3
4 55.55 " 33.26 " 27.11 " 32.66 " 102.8 " 172.9 " 277.0 " 454.0 " 357.8 " 155.6 " 69.24 " 61.32 " 4
5 53.80 " 32.98 " 26.99 " 32.21 " 99.89 " 167.5 " 272.2 " 453.4 " 344.9 " 149.9 " 67.38 " 60.37 " 5
6 52.77 " 32.99 " 26.80 " 32.28 " 96.60 " 185.9 " 261.0 " 452.3 " 332.9 " 142.9 " 65.05 " 59.28 " 6
7 51.20 " 33.90 " 26.85 " 32.12 " 94.26 " 204.4 " 252.5 " 444.6 " 328.9 " 136.3 " 63.05 " 62.10 " 7
8 49.78 " 33.79 " 26.53 " 31.93 " 92.86 " 222.9 " 266.0 " 430.5 " 333.0 " 131.1 " 61.70 " 61.38 " 8
9 49.10 " 33.23 " 26.19 " 221.7 " 90.94 " 246.6 " 303.0 " 409.2 " 351.3 " 127.6 " 63.65 " 57.70 " 9
10 48.37 " 33.56 " 25.91 " 330.4 " 88.37 " 246.9 " 314.3 " 389.6 " 368.6 " 128.5 " 68.32 " 54.60 " 10
11 47.84 " 33.67 " 26.03 " 295.9 " 85.61 " 237.8 " 369.8 " 373.2 " 371.0 " 125.8 " 72.12 " 52.47 " 11
12 46.67 " 33.23 " 26.02 " 314.6 " 85.69 " 216.0 " 378.1 " 383.8 " 389.0 " 120.8 " 70.95 " 50.35 " 12
13 45.27 " 32.76 " 26.97 " 370.1 " 95.46 " 200.2 " 384.5 " 397.9 " 382.9 " 117.5 " 68.89 " 48.05 " 13
14 44.45 " 32.22 " 29.99 " 372.1 " 94.35 " 198.5 " 474.8 " 465.0 " 363.3 " 115.1 " 69.36 " 45.78 " 14
15 43.28 " 31.93 " 29.40 " 351.3 " 90.40 " 194.4 " 496.8 " 492.1 " 341.0 " 112.1 " 70.19 " 43.41 " 15
16 42.36 " 31.66 " 29.66 " 327.2 " 89.07 " 194.2 " 519.2 " 554.8 " 329.9 " 107.6 " 69.26 " 41.33 " 16
17 41.06 " 31.62 " 30.97 " 306.6 " 87.96 " 199.0 " 511.1 " 546.3 " 324.7 " 103.5 " 68.86 " 39.90 " 17
18 40.18 " 31.42 " 29.90 " 266.9 " 86.38 " 191.6 " 574.2 " 480.3 " 312.8 " 99.62 " 70.59 " 38.18 " 18
19 40.12 " 31.28 " 29.00 " 235.9 " 84.39 " 188.7 " 639.5 " 451.4 " 297.9 " 97.12 " 72.44 " 36.84 " 19
20 39.72 " 31.07 " 28.90 " 213.2 " 83.23 " 189.2 " 639.0 " 528.5 " 281.1 " 99.09 " 73.78 " 35.49 " 20
21 39.41 " 30.95 " 28.92 " 194.9 " 82.59 " 188.2 " 636.0 " 568.3 " 266.2 " 97.58 " 73.54 " 37.46 " 21
22 38.49 " 30.69 " 29.37 " 182.5 " 88.39 " 185.9 " 618.0 " 557.0 " 252.9 " 95.36 " 71.80 " 38.82 " 22
23 37.79 " 30.78 " 30.57 " 172.8 " 98.42 " 192.8 " 600.2 " 522.3 " 238.7 " 93.62 " 68.22 " 38.16 " 23
24 37.25 " 30.52 " 30.28 " 158.1 " 94.15 " 195.5 " 576.4 " 503.6 " 224.4 " 89.57 " 64.63 " 36.98 " 24
25 36.59 " 29.90 " 30.31 " 149.1 " 94.41 " 209.8 " 544.8 " 514.5 " 212.8 " 86.69 " 62.03 " 34.87 " 25
26 36.38 " 29.41 " 30.24 " 139.8 " 99.59 " 219.6 " 523.3 " 517.2 " 203.5 " 84.98 " 60.06 " 33.21 " 26
27 36.16 " 28.52 " 31.04 " 132.1 " 111.8 " 215.7 " 509.5 " 491.6 " 196.5 " 83.96 " 56.96 " 32.04 " 27
28 36.04 " 27.84 " 31.20 " 126.2 " 117.0 " 210.8 " 518.8 " 460.6 " 191.5 " 85.64 " 54.64 " 31.07 " 28
29 35.71 " 30.87 " 121.8 " 145.2 " 209.4 " 510.4 " 434.4 " 184.7 " 85.16 " 56.69 " 30.47 " 29
30 35.08 " 30.60 " 118.2 " 167.6 " 205.5 " 519.1 " 414.1 " 179.1 " 81.61 " 63.18 " 29.86 " 30
31 34.52 " 30.48 " 168.4 " 536.3 " 400.5 " 78.34 " 29.13 " 31
Mean 44.28 " 31.95 " 28.70 " 178.5 " 101.5 " 200.8 " 442.0 " 468.5 " 303.3 " 114.0 " 67.27 " 45.23 "
Median 42.36 " 32.08 " 29.00 " 165.4 " 94.35 " 197.0 " 509.5 " 465.0 " 329.4 " 107.6 " 68.87 " 41.33 "
Maximum 60.93 " 33.90 " 31.20 " 372.1 " 168.4 " 246.9 " 639.5 " 568.3 " 390.8 " 173.6 " 75.80 " 62.40 "
Minimum 34.52 " 27.84 " 25.91 " 30.17 " 82.59 " 167.5 " 199.8 " 373.2 " 179.1 " 78.34 " 54.64 " 29.13 "
Total 1373 " 894.6 " 889.9 " 5354 " 3146 " 6025 "13703 "14525 " 9100 " 3535 " 2018 " 1402 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 169.8 " " ... Relative Uncertainty +/-10%
Ann. Median 94.26 "
Annual Total 61965 "
Maximum Minimum
Daily 639.5 " 25.91 "
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 28.53" 32.12" 88.65" 30.84" 219.5 " 137.3 " 496.0 " 3607 " 3194 " 2001 " 477.7 $ 280.0 $ 1
2 28.01" 30.47" 83.57" 29.05" 178.1 " 156.5 " 1158 " 4647 " 2902 " 1830 $ 463.0 $ 259.8 $ 2
3 27.55" 28.68" 75.93" 28.49" 150.7 " 152.9 " 1725 " 5711 " 2753 " 1705 $ 437.0 $ 239.2 $ 3
4 27.30" 28.01" 71.58" 28.01" 130.5 " 166.5 " 2543 " 6837 " 2679 " 1607 $ 421.1 $ 221.2 $ 4
5 30.53" 27.42" 69.37" 27.52" 117.4 " 174.1 " 2960 " 7584 " 2567 " 1468 $ 406.2 $ 207.0 $ 5
6 32.79" 26.67" 65.74" 27.18" 108.0 " 168.3 " 3050 " 7219 " 2412 " 1394 $ 392.0 $ 194.7 $ 6
7 31.73" 26.22" 62.53" 30.59" 98.45" 187.6 " 2893 " 6406 " 2247 " 1340 $ 378.7 $ 186.0 $ 7
8 31.25" 26.01" 59.00" 30.35" 89.59" 218.4 " 2533 " 5601 " 2048 " 1347 $ 492.6 $ 175.1 $ 8
9 30.58" 26.30" 55.69" 29.10" 81.18" 214.5 " 2172 " 4843 " 1856 $ 1361 $ 920.6 $ 165.7 $ 9
10 29.83" 26.07" 53.24" 28.70" 72.88" 206.3 " 1823 " 4339 " 1668 $ 1343 $ 934.8 $ 156.2 $ 10
11 29.35" 25.47" 53.23" 30.41" 69.27" 201.9 " 1582 " 3983 " 1521 $ 1288 $ 894.5 $ 147.0 $ 11
12 28.48" 24.46" 51.47" 30.03" 64.51" 195.7 " 1422 " 3570 " 1384 $ 1301 $ 905.4 $ 140.2 $ 12
13 27.77" 23.85" 48.85" 30.14" 58.89" 185.9 " 1293 " 3135 " 1238 $ 1393 $ 1507 $ 134.6 $ 13
14 27.13" 23.50" 46.60" 30.74" 56.21" 181.9 " 1192 " 2825 " 1124 $ 1262 $ 1680 $ 129.2 $ 14
15 26.56" 23.19" 44.38" 30.16" 53.43" 176.2 " 1138 " 2694 " 1029 $ 1086 $ 1529 $ 126.5 $ 15
16 26.19" 23.05" 42.71" 29.41" 52.45" 170.3 " 1103 " 2847 " 958.9 $ 937.5 $ 1316 $ 123.0 $ 16
17 25.99" 79.43" 41.45" 28.95" 52.67" 164.0 " 1112 " 3127 " 910.9 $ 814.0 $ 1126 $ 119.6 $ 17
18 25.58" 211.4 " 40.75" 28.53" 51.00" 161.3 " 1113 " 3432 " 982.2 $ 740.7 $ 954.9 $ 118.7 $ 18
19 25.23" 193.9 " 39.10" 28.42" 38.57" 159.4 " 1127 " 3439 " 1307 $ 719.7 $ 816.0 $ 115.5 $ 19
20 24.72" 175.5 " 37.57" 28.15" 60.89" 161.0 " 1363 " 3285 " 1907 $ 689.5 $ 710.9 $ 111.0 $ 20
21 24.31" 159.8 " 36.44" 27.96" 78.29" 163.9 " 1513 " 3090 " 2467 " 635.5 $ 635.6 $ 239.2 $ 21
22 24.01" 141.0 " 35.59" 27.73" 78.51" 163.3 " 1483 " 3053 " 3207 " 582.7 $ 580.3 $ 5502 " 22
23 24.15" 136.1 " 34.69" 28.19" 78.56" 161.0 " 1497 " 3289 " 3840 " 537.9 $ 532.8 $ 7264 " 23
24 28.90" 123.1 " 34.17" 38.23" 76.09" 172.7 " 1574 " 4131 " 3675 " 503.1 $ 484.7 $ 4446 " 24
25 28.97" 115.2 " 33.42" 37.98" 76.47" 193.9 " 1588 " 9391 " 3342 " 474.0 $ 442.5 $ 2536 " 25
26 28.11" 106.8 " 32.72" 33.92" 80.32" 285.0 " 1576 "13035 " 3109 " 461.4 $ 407.9 $ 1787 $ 26
27 27.78" 99.97" 31.81" 36.34" 81.86" 311.0 " 1617 "10030 " 2787 " 475.1 $ 376.8 $ 1320 $ 27
28 28.31" 94.83" 31.40" 37.56" 89.59" 314.1 " 1712 " 7630 " 2521 " 544.9 $ 350.4 $ 1041 $ 28
29 29.95" 30.60" 37.96" 95.41" 369.8 " 1903 " 5901 " 2349 " 490.5 $ 326.8 $ 857.4 $ 29
30 32.48" 30.12" 239.8 " 101.6 " 366.9 " 2497 " 4538 " 2193 " 487.3 $ 300.8 $ 714.3 $ 30
31 33.42" 29.43" 108.8 " 3210 " 3659 " 491.9 $ 614.2 $ 31
Mean 28.24 " 73.52 " 48.12 " 37.68 " 88.70 " 201.4 "1741 "5061 "2206 $1010 $ 706.7 $ 957.1 $
Median 28.11 " 29.58 " 42.71 " 29.72 " 78.56 " 175.1 "1576 "4131 "2298 $ 937.5 $ 512.7 $ 207.0 $
Maximum 33.42" 211.4 " 88.65" 239.8 " 219.5 " 369.8 " 3210 "13035 " 3840 $ 2001 $ 1680 $ 7264 $
Minimum 24.01 " 23.05 " 29.43 " 27.18 " 38.57 " 137.3 " 496.0 "2694 " 910.9 $ 461.4 $ 300.8 $ 111.0 $
Total 875.5" 2059 " 1492 " 1130 " 2750 " 6041 " 53970 "156876 " 66179 $ 31311 $ 21201 $ 29671 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1023 $ " ... Relative Uncertainty +/-10%
Ann. Median 194.7 $ $ ... Relative Uncertainty +/-20%
Annual Total 373554 $
Maximum Minimum
Daily 13035 $ 23.05 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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
1 543.3 $ 74.20 $ 50.28 $ 38.12 $ 46.04 $ 63.01 $ 870.4 $ 361.9 $ 574.3 $ 981.3 $ 171.2 $ 92.55 $ 1
2 486.4 $ 74.93 $ 49.35 $ 39.06 $ 43.01 $ 84.31 $ 773.6 $ 360.7 $ 558.5 $ 868.9 $ 164.7 $ 93.50 $ 2
3 435.5 $ 75.54 $ 48.76 $ 39.02 $ 40.21 $ 115.8 $ 701.6 $ 372.5 $ 565.9 $ 822.1 $ 161.9 $ 95.27 $ 3
4 409.7 $ 74.29 $ 48.21 $ 39.69 $ 39.10 $ 137.7 $ 644.4 $ 385.2 $ 666.4 $ 801.9 $ 165.5 $ 92.39 $ 4
5 375.5 $ 73.05 $ 47.49 $ 40.01 $ 42.66 $ 145.5 $ 597.8 $ 411.7 $ 960.4 $ 763.1 $ 177.0 $ 90.65 $ 5
6 339.2 $ 74.06 $ 47.19 $ 39.62 $ 42.17 $ 150.0 $ 571.2 $ 410.4 $1183 $ 728.6 $ 186.1 $ 88.11 $ 6
7 308.6 $ 78.87 $ 45.85 $ 39.15 $ 45.35 $ 163.8 $ 556.4 $ 411.8 $1327 $ 674.4 $ 189.1 $ 85.86 $ 7
8 282.2 $ 79.36 $ 44.59 $ 39.23 $ 46.86 $ 164.4 $ 559.6 $ 410.3 $1277 $ 618.3 $ 189.4 $ 81.11 $ 8
9 259.2 $ 76.95 $ 43.96 $ 39.70 $ 45.75 $ 160.7 $ 562.6 $ 395.3 $1306 $ 566.1 $ 180.9 $ 78.29 $ 9
10 240.0 $ 74.61 $ 43.93 $ 39.38 $ 46.31 $ 160.9 $ 585.1 $ 383.6 $1353 $ 519.9 $ 173.9 $ 77.80 $ 10
11 223.7 $ 73.38 $ 44.15 $ 38.91 $ 45.78 $ 166.9 $ 585.8 $ 380.7 $1202 $ 479.6 $ 168.9 $ 78.08 $ 11
12 207.3 $ 71.46 $ 44.02 $ 38.59 $ 45.54 $ 160.6 $ 547.8 $ 398.1 $1038 $ 443.1 $ 164.8 $ 83.60 $ 12
13 192.9 $ 69.48 $ 42.91 $ 38.09 $ 45.95 $ 199.5 $ 516.9 $ 450.9 $ 894.9 $ 414.3 $ 159.5 $ 85.04 $ 13
14 181.3 $ 67.57 $ 43.81 $ 37.79 $ 45.66 $ 236.8 $ 513.6 $ 685.2 $ 793.1 $ 392.9 $ 150.9 $ 83.51 $ 14
15 172.9 $ 66.18 $ 44.49 $ 37.43 $ 45.45 $ 293.5 $ 502.5 $ 700.3 $ 737.8 $ 377.5 $ 141.5 $ 83.67 $ 15
16 163.2 $ 64.68 $ 41.29 $ 37.07 $ 45.53 $ 308.9 $ 487.8 $ 798.9 $ 701.3 $ 360.8 $ 132.4 $ 89.60 $ 16
17 155.0 $ 63.43 $ 41.16 $ 36.92 $ 45.38 $ 357.8 $ 482.1 $ 790.9 $ 659.2 $ 343.4 $ 126.0 $ 87.61 $ 17
18 144.1 $ 63.13 $ 44.00 $ 38.20 $ 45.33 $ 378.2 $ 502.8 $ 710.0 $ 614.0 $ 330.1 $ 121.6 $ 81.66 $ 18
19 136.1 $ 61.60 $ 42.42 $ 38.83 $ 44.70 $ 506.0 $ 508.4 $ 658.6 $ 569.7 $ 316.0 $ 117.8 $ 103.2 $ 19
20 130.2 $ 60.02 $ 41.17 $ 39.54 $ 43.96 $ 714.9 $ 508.3 $ 626.5 $ 554.5 $ 298.8 $ 113.2 $ 127.4 $ 20
21 123.7 $ 58.62 $ 40.26 $ 40.61 $ 43.84 $ 857.1 $ 501.7 $ 610.1 $ 554.7 $ 277.9 $ 111.1 $ 120.5 $ 21
22 117.4 $ 57.72 $ 39.26 $ 41.60 $ 43.55 $1168 $ 488.3 $ 616.0 $ 595.1 $ 272.7 $ 108.6 $ 111.3 $ 22
23 111.1 $ 57.04 $ 38.35 $ 41.80 $ 43.18 $1315 $ 480.5 $ 668.1 $ 621.6 $ 264.0 $ 104.8 $ 103.2 $ 23
24 105.7 $ 56.32 $ 49.92 $ 41.54 $ 43.31 $1396 $ 470.0 $ 702.7 $ 657.7 $ 257.5 $ 101.4 $ 95.59 $ 24
25 101.3 $ 55.44 $ 43.05 $ 41.38 $ 44.35 $1329 $ 453.8 $ 782.9 $ 689.9 $ 245.4 $ 97.89 $ 89.10 $ 25
26 97.00 $ 55.56 $ 37.87 $ 41.12 $ 45.48 $1206 $ 442.8 $ 758.3 $ 680.3 $ 230.9 $ 94.07 $ 82.22 $ 26
27 92.38 $ 54.60 $ 37.28 $ 41.95 $ 46.09 $1091 $ 428.0 $ 704.4 $ 701.9 $ 220.0 $ 90.40 $ 80.31 $ 27
28 88.43 $ 53.02 $ 37.75 $ 42.90 $ 45.94 $1035 $ 413.6 $ 675.6 $ 852.8 $ 210.5 $ 91.53 $ 75.79 $ 28
29 83.57 $ 51.53 $ 37.85 $ 48.43 $ 45.50 $1019 $ 394.8 $ 639.0 $1067 $ 201.9 $ 97.65 $ 71.33 $ 29
30 78.82 $ 37.80 $ 49.98 $ 46.23 $ 968.5 $ 377.8 $ 600.4 $1079 $ 191.1 $ 99.14 $ 69.40 $ 30
31 76.18 $ 38.14 $ 54.08 $ 366.9 $ 582.8 $ 180.3 $ 66.37 $ 31
Mean 208.4 $ 66.09 $ 43.11 $ 40.19 $ 44.91 $ 535.1 $ 528.9 $ 562.7 $ 834.5 $ 440.4 $ 138.4 $ 88.52 $
Median 163.2 $ 66.18 $ 43.81 $ 39.46 $ 45.45 $ 301.2 $ 508.3 $ 610.1 $ 701.6 $ 360.8 $ 136.9 $ 85.86 $
Maximum 543.3 $ 79.36 $ 50.28 $ 49.98 $ 54.08 $1396 $ 870.4 $ 798.9 $1353 $ 981.3 $ 189.4 $ 127.4 $
Minimum 76.18 $ 51.53 $ 37.28 $ 36.92 $ 39.10 $ 63.01 $ 366.9 $ 360.7 $ 554.5 $ 180.3 $ 90.40 $ 66.37 $
Total 6462 $ 1917 $ 1337 $ 1206 $ 1392 $16054 $16397 $17444 $25036 $13654 $ 4153 $ 2744 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 294.5 $ $ ... Relative Uncertainty +/-20%
Ann. Median 136.9 $
Annual Total 107793 $
Maximum Minimum
Daily 1396 $ 36.92 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 63.38$ 69.45$ 32.91$ 32.97$ 37.74$ 418.9 $ 393.2 $ 1951 " 1994 " 5780 " 459.5 $ 156.4 $ 1
2 62.20$ 66.32$ 32.13$ 33.10$ 46.09$ 501.3 $ 405.8 $ 1955 " 2015 " 4859 " 432.0 $ 147.4 $ 2
3 61.96$ 64.15$ 31.90$ 32.58$ 44.77$ 511.1 $ 422.8 $ 1974 " 2021 " 4069 " 412.8 $ 145.9 $ 3
4 104.0 $ 61.38$ 31.81$ 31.73$ 43.60$ 488.8 $ 416.4 $ 1999 " 1994 " 3561 " 398.9 $ 139.8 $ 4
5 227.9 $ 58.82$ 31.75$ 31.55$ 44.79$ 449.7 $ 407.1 $ 1934 " 2073 " 3217 " 382.1 $ 132.9 $ 5
6 229.4 $ 56.22$ 31.32$ 30.95$ 49.01$ 421.2 $ 396.8 $ 1858 " 2228 " 2991 " 365.2 $ 128.4 $ 6
7 252.2 $ 54.26$ 30.73$ 30.61$ 51.98$ 405.0 $ 376.9 $ 2072 " 2223 " 2812 " 349.9 $ 124.1 $ 7
8 240.7 $ 52.10$ 30.15$ 31.22$ 74.07$ 393.4 $ 356.3 $ 3427 " 2150 " 2702 " 333.8 $ 120.9 $ 8
9 216.4 $ 50.63$ 29.98$ 31.44$ 74.83$ 385.8 $ 352.3 $ 6622 " 2114 " 2518 " 315.2 $ 116.9 $ 9
10 193.9 $ 49.51$ 30.23$ 31.17$ 71.91$ 371.8 $ 351.2 $ 8395 " 2079 " 2288 " 298.2 $ 110.9 $ 10
11 177.9 $ 48.30$ 30.82$ 30.78$ 198.3 $ 366.7 $ 359.1 $ 8372 " 2037 " 2063 " 280.2 $ 105.9 $ 11
12 166.3 $ 47.00$ 30.38$ 34.47$ 212.2 $ 364.9 $ 379.7 $ 8065 " 2223 " 1888 " 265.1 $ 102.3 $ 12
13 159.8 $ 46.23$ 30.42$ 35.40$ 211.7 $ 368.6 $ 376.8 $ 7621 " 2638 " 1723 $ 251.2 $ 98.89$ 13
14 156.0 $ 44.62$ 30.94$ 35.28$ 218.6 $ 367.4 $ 401.1 $ 6950 " 2921 " 1545 $ 238.2 $ 95.52$ 14
15 151.7 $ 42.70$ 31.72$ 35.05$ 207.6 $ 355.3 $ 433.0 $ 6153 " 3333 " 1394 $ 228.6 $ 91.25$ 15
16 145.8 $ 42.90$ 31.69$ 35.50$ 196.9 $ 345.9 $ 521.8 $ 5293 " 4103 " 1264 $ 216.7 $ 86.27$ 16
17 137.8 $ 42.45$ 31.84$ 36.09$ 196.0 $ 354.6 $ 628.3 $ 4688 " 4891 " 1156 $ 207.2 $ 82.83$ 17
18 130.6 $ 40.86$ 32.31$ 36.54$ 208.4 $ 363.1 $ 865.1 $ 4302 " 5988 " 1066 $ 197.5 $ 78.47$ 18
19 126.8 $ 39.92$ 32.43$ 36.42$ 228.9 $ 370.6 $ 971.1 $ 4009 " 6705 " 997.8 $ 188.5 $ 75.52$ 19
20 125.9 $ 39.39$ 32.44$ 36.00$ 262.8 $ 364.9 $ 917.2 $ 3706 " 6425 " 1003 $ 176.6 $ 73.03$ 20
21 129.4 $ 38.54$ 32.46$ 35.28$ 238.5 $ 362.2 $ 808.6 $ 3436 " 6125 " 982.9 $ 166.9 $ 70.49$ 21
22 128.8 $ 37.81$ 32.15$ 35.35$ 220.3 $ 358.2 $ 700.8 $ 3123 " 6340 " 940.1 $ 166.5 $ 67.98$ 22
23 123.2 $ 36.60$ 31.88$ 34.90$ 217.9 $ 370.9 $ 708.7 $ 2815 " 7456 " 903.2 $ 175.9 $ 65.72$ 23
24 116.2 $ 35.86$ 31.78$ 34.76$ 213.1 $ 379.2 $ 766.5 $ 2558 "10194 " 827.0 $ 158.5 $ 64.36$ 24
25 108.2 $ 35.43$ 32.41$ 34.17$ 197.5 $ 405.6 $ 886.6 $ 2346 "12322 " 753.1 $ 152.2 $ 62.97$ 25
26 101.9 $ 35.10$ 33.95$ 33.82$ 215.0 $ 474.7 $ 1138 $ 2204 "11828 " 705.8 $ 149.2 $ 61.58$ 26
27 95.71$ 33.93$ 32.88$ 34.02$ 263.8 $ 479.4 $ 1478 $ 2175 "10068 " 662.1 $ 145.0 $ 60.54$ 27
28 89.12$ 33.57$ 32.18$ 33.90$ 281.6 $ 466.1 $ 1816 $ 2147 " 8028 " 614.3 $ 141.2 $ 59.04$ 28
29 83.46$ 32.28$ 33.64$ 284.0 $ 439.1 $ 2100 " 2112 " 6829 " 565.3 $ 148.1 $ 58.06$ 29
30 78.70$ 32.43$ 33.51$ 304.1 $ 405.6 $ 2140 " 2088 " 6314 " 528.0 $ 163.8 $ 57.20$ 30
31 73.78$ 32.74$ 312.5 $ 2000 " 2030 " 492.9 $ 56.59$ 31
Mean 137.4 $ 46.57 $ 31.78 $ 33.74 $ 175.1 $ 403.7 $ 783.0 $3819 "4922 "1835 $ 252.1 $ 93.49 $
Median 128.8 $ 43.76 $ 31.88 $ 33.96 $ 208.4 $ 382.5 $ 521.8 $2815 "3718 "1264 $ 222.6 $ 86.27 $
Maximum 252.2 $ 69.45$ 33.95$ 36.54$ 312.5 $ 511.1 $ 2140 $ 8395 "12322 " 5780 $ 459.5 $ 156.4 $
Minimum 61.96 $ 33.57 $ 29.98 $ 30.61 $ 37.74 $ 345.9 $ 351.2 $1858 "1994 " 492.9 $ 141.2 $ 56.59 $
Total 4259 $ 1304 $ 985.0$ 1012 $ 5428 $ 12110 $ 24274 $118381 "147659 " 56874 $ 7564 $ 2898 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1049 $ " ... Relative Uncertainty +/-10%
Ann. Median 217.9 $ $ ... Relative Uncertainty +/-20%
Annual Total 382750 $
Maximum Minimum
Daily 12322 $ 29.98 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 54.72 $ 32.37 $ 24.17 $ 28.26 $ 32.57 $ 817.5 $ 774.4 $3882 "7262 "1701 $ 445.2 $ 129.3 $ 1
2 53.33 $ 31.24 $ 23.65 $ 28.25 $ 34.77 $ 757.4 $ 753.3 $3539 "8525 "1602 $ 436.0 $ 126.6 $ 2
3 52.38 $ 30.75 $ 23.45 $ 28.38 $ 35.76 $ 717.2 $1228 $3260 "8453 "1504 $ 415.3 $ 121.6 $ 3
4 51.46 $ 30.74 $ 23.02 $ 28.28 $ 36.96 $ 653.4 $1723 $2882 "6871 "1378 $ 388.7 $ 115.3 $ 4
5 51.14 $ 30.90 $ 22.90 $ 28.84 $ 38.04 $ 590.6 $1555 $2532 "5519 "1296 $ 368.6 $ 111.7 $ 5
6 50.31 $ 30.48 $ 22.91 $ 28.39 $ 38.13 $ 534.4 $1346 $2281 "4902 "1270 $ 347.1 $ 109.3 $ 6
7 50.04 $ 31.46 $ 23.39 $ 28.29 $ 39.74 $ 484.0 $1501 $2088 "4410 "1317 $ 327.5 $ 105.8 $ 7
8 49.54 $ 31.38 $ 23.63 $ 28.24 $ 46.20 $ 443.3 $2740 "1976 "4027 "1249 $ 301.2 $ 102.1 $ 8
9 49.33 $ 30.12 $ 23.49 $ 27.87 $ 47.43 $ 413.8 $3739 "1930 "4131 "1165 $ 284.2 $ 97.04 $ 9
10 47.96 $ 29.99 $ 23.34 $ 27.52 $ 47.06 $ 396.8 $4250 "1868 "4653 "1056 $ 268.8 $ 93.68 $ 10
11 45.68 $ 29.51 $ 23.17 $ 26.86 $ 46.35 $ 380.9 $5063 "1749 $4902 " 956.6 $ 251.4 $ 90.77 $ 11
12 45.81 $ 29.32 $ 23.33 $ 27.02 $ 46.45 $ 377.4 $5741 "1590 $4809 " 879.2 $ 235.3 $ 88.17 $ 12
13 45.23 $ 29.56 $ 23.82 $ 26.70 $ 47.78 $ 362.6 $5348 "1438 $4505 " 800.6 $ 222.8 $ 83.83 $ 13
14 43.51 $ 29.68 $ 23.89 $ 26.11 $ 52.69 $ 341.4 $4639 "1291 $4145 " 731.1 $ 215.1 $ 80.63 $ 14
15 43.52 $ 29.58 $ 23.65 $ 25.67 $ 52.01 $ 328.1 $4025 "1160 $3796 " 667.7 $ 210.5 $ 79.34 $ 15
16 42.65 $ 29.26 $ 23.93 $ 25.68 $ 50.04 $ 313.4 $3626 "1049 $3513 " 612.6 $ 203.0 $ 77.46 $ 16
17 42.37 $ 28.97 $ 24.81 $ 25.79 $ 48.50 $ 326.2 $3328 " 957.6 $3135 " 560.8 $ 196.4 $ 75.78 $ 17
18 43.05 $ 28.73 $ 24.79 $ 25.56 $ 49.03 $ 346.5 $3175 " 952.7 $2712 " 515.0 $ 191.6 $ 76.88 $ 18
19 42.01 $ 27.51 $ 24.15 $ 25.11 $ 51.45 $ 373.3 $3298 "1068 $2377 " 478.3 $ 188.1 $ 76.32 $ 19
20 40.15 $ 27.64 $ 23.50 $ 23.08 $ 54.54 $ 412.4 $3350 "1742 $2127 " 451.4 $ 182.3 $ 74.38 $ 20
21 38.35 $ 27.44 $ 22.85 $ 24.19 $ 58.40 $ 432.5 $3170 "2280 "1989 " 430.9 $ 180.1 $ 72.39 $ 21
22 37.46 $ 26.82 $ 22.10 $ 25.10 $ 58.50 $ 476.4 $3023 "2501 "2013 " 413.8 $ 172.8 $ 69.48 $ 22
23 36.97 $ 26.59 $ 21.67 $ 25.04 $ 70.02 $ 590.9 $2913 "2854 "2063 " 398.4 $ 165.2 $ 67.55 $ 23
24 35.81 $ 26.04 $ 21.38 $ 25.66 $ 80.70 $ 698.2 $3021 "2743 "1969 " 387.8 $ 157.4 $ 65.77 $ 24
25 34.75 $ 25.90 $ 22.08 $ 26.16 $ 81.34 $ 871.2 $3011 "2429 "1848 " 384.9 $ 151.4 $ 63.15 $ 25
26 33.43 $ 25.11 $ 24.71 $ 26.02 $ 75.84 $ 864.8 $2991 "2330 "1742 $ 394.8 $ 145.8 $ 60.12 $ 26
27 33.79 $ 25.63 $ 25.60 $ 25.27 $ 85.90 $ 901.6 $3286 "2546 "1700 $ 479.8 $ 145.9 $ 58.38 $ 27
28 33.11 $ 25.09 $ 25.61 $ 26.52 $ 113.9 $ 937.8 $4276 "3161 "1782 $ 593.2 $ 147.5 $ 56.95 $ 28
29 32.66 $ 26.77 $ 26.62 $ 863.0 $ 936.7 $4748 "3149 "1869 " 588.1 $ 137.3 $ 54.57 $ 29
30 32.39 $ 27.54 $ 27.54 $1037 $ 858.2 $4551 "3747 "1821 $ 519.9 $ 130.1 $ 52.14 $ 30
31 32.19 $ 27.85 $ 933.9 $ 4267 "5695 " 468.5 $ 50.59 $ 31
Mean 42.75 $ 28.85 $ 23.91 $ 26.60 $ 140.4 $ 564.6 $3241 $2344 $3786 $ 814.6 $ 240.4 $ 83.46 $
Median 43.05 $ 29.41 $ 23.63 $ 26.57 $ 50.04 $ 480.2 $3286 $2281 $3655 $ 612.6 $ 206.8 $ 77.46 $
Maximum 54.72 $ 32.37 $ 27.85 $ 28.84 $1037 $ 937.8 $5741 $5695 $8525 $1701 $ 445.2 $ 129.3 $
Minimum 32.19 $ 25.09 $ 21.38 $ 23.08 $ 32.57 $ 313.4 $ 753.3 $ 952.7 $1700 $ 384.9 $ 130.1 $ 50.59 $
Total 1325 $ 807.8$ 741.1$ 798.0$ 4354 $ 16939 $100459 $ 72670 $113573 $ 25251 $ 7213 $ 2587 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 949.9 $ " ... Relative Uncertainty +/-10%
Ann. Median 145.9 $ $ ... Relative Uncertainty +/-20%
Annual Total 346718 $
Maximum Minimum
Daily 8525 $ 21.38 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 49.62 $ 24.64 $ 21.02 $ 22.56 $ 143.9 $ 146.4 $ 350.4 $ 879.8 $ 875.9 $ 399.8 $ 115.8 $ 57.01 $ 1
2 47.26 $ 24.38 $ 20.34 $ 23.05 $ 130.1 $ 154.2 $ 326.5 $2701 " 928.2 $ 377.2 $ 110.1 $ 55.61 $ 2
3 45.21 $ 24.80 $ 20.01 $ 23.65 $ 118.6 $ 151.0 $ 302.8 $2670 " 911.4 $ 359.8 $ 106.0 $ 54.44 $ 3
4 44.21 $ 24.57 $ 19.66 $ 23.48 $ 114.2 $ 145.1 $ 280.4 $2493 " 888.7 $ 341.9 $ 104.6 $ 53.06 $ 4
5 43.09 $ 24.36 $ 19.70 $ 23.01 $ 105.1 $ 146.8 $ 263.8 $2363 " 885.2 $ 328.6 $ 103.1 $ 52.12 $ 5
6 42.79 $ 23.45 $ 19.79 $ 22.53 $ 100.4 $ 145.2 $ 251.6 $2056 " 876.3 $ 310.6 $ 100.8 $ 54.08 $ 6
7 41.86 $ 22.47 $ 19.95 $ 24.03 $ 96.53 $ 142.5 $ 249.3 $1649 $ 881.6 $ 292.3 $ 98.48 $ 53.01 $ 7
8 40.18 $ 22.63 $ 19.88 $ 25.93 $ 93.47 $ 139.7 $ 257.0 $1328 $ 861.1 $ 276.1 $ 96.98 $ 51.99 $ 8
9 38.78 $ 22.47 $ 19.44 $ 28.09 $ 91.01 $ 138.6 $ 260.2 $1154 $ 807.5 $ 261.2 $ 95.94 $ 50.71 $ 9
10 37.51 $ 22.27 $ 19.42 $ 34.01 $ 87.94 $ 141.4 $ 263.9 $1145 $ 772.2 $ 248.9 $ 94.84 $ 49.60 $ 10
11 36.55 $ 22.55 $ 19.19 $ 40.12 $ 84.77 $ 148.8 $ 258.7 $1234 $ 831.1 $ 239.2 $ 92.83 $ 49.01 $ 11
12 35.32 $ 22.76 $ 18.78 $ 46.05 $ 82.79 $ 163.6 $ 249.9 $1364 $1001 $ 227.5 $ 90.07 $ 48.32 $ 12
13 34.43 $ 23.16 $ 18.87 $ 44.35 $ 81.08 $ 171.2 $ 240.3 $1299 $1372 $ 216.6 $ 87.32 $ 48.36 $ 13
14 33.56 $ 22.70 $ 22.63 $ 46.31 $ 78.89 $ 197.8 $ 228.0 $1224 $1963 $ 207.0 $ 84.48 $ 47.49 $ 14
15 32.21 $ 21.95 $ 25.75 $ 49.81 $ 76.99 $ 205.2 $ 220.1 $1102 $2033 " 194.3 $ 84.20 $ 46.37 $ 15
16 31.27 $ 21.68 $ 26.09 $ 50.83 $ 92.13 $ 194.4 $ 213.9 $ 989.9 $1763 $ 195.9 $ 95.58 $ 44.95 $ 16
17 31.26 $ 21.92 $ 25.07 $ 48.61 $ 112.9 $ 183.6 $ 210.2 $ 906.2 $1492 $ 188.2 $ 97.74 $ 43.64 $ 17
18 31.21 $ 22.16 $ 28.08 $ 45.45 $ 114.0 $ 178.4 $ 206.6 $ 877.8 $1307 $ 178.6 $ 93.71 $ 42.69 $ 18
19 30.83 $ 22.13 $ 27.99 $ 42.27 $ 117.4 $ 176.6 $ 218.2 $ 901.5 $1184 $ 177.3 $ 90.05 $ 41.63 $ 19
20 30.71 $ 21.42 $ 28.53 $ 39.85 $ 145.7 $ 197.0 $ 232.3 $ 912.1 $1075 $ 167.3 $ 85.70 $ 40.68 $ 20
21 30.27 $ 21.02 $ 28.76 $ 38.03 $ 158.0 $ 212.9 $ 228.7 $1022 $ 965.4 $ 160.3 $ 82.30 $ 40.17 $ 21
22 29.61 $ 21.50 $ 27.64 $ 36.93 $ 148.7 $ 232.7 $ 272.8 $1154 $ 861.3 $ 154.3 $ 79.82 $ 39.72 $ 22
23 29.32 $ 20.72 $ 26.15 $ 36.08 $ 145.7 $ 232.4 $ 311.0 $1259 $ 775.3 $ 146.5 $ 76.54 $ 39.75 $ 23
24 28.69 $ 20.77 $ 25.40 $ 78.27 $ 154.9 $ 272.1 $ 314.0 $1246 $ 705.9 $ 140.8 $ 73.22 $ 39.21 $ 24
25 29.42 $ 20.81 $ 24.80 $ 159.7 $ 152.9 $ 259.0 $ 350.2 $1182 $ 641.0 $ 134.2 $ 70.00 $ 37.74 $ 25
26 28.33 $ 22.24 $ 24.54 $ 151.8 $ 147.9 $ 255.7 $ 327.3 $1112 $ 583.8 $ 129.7 $ 67.04 $ 36.93 $ 26
27 27.50 $ 22.92 $ 24.03 $ 145.0 $ 140.9 $ 288.5 $ 322.9 $1032 $ 532.7 $ 127.2 $ 64.46 $ 36.42 $ 27
28 26.91 $ 22.18 $ 23.41 $ 136.9 $ 142.7 $ 302.9 $ 381.0 $ 962.7 $ 491.3 $ 123.7 $ 62.31 $ 35.50 $ 28
29 25.99 $ 23.09 $ 131.1 $ 156.1 $ 372.9 $ 413.9 $ 900.4 $ 457.4 $ 118.7 $ 60.32 $ 35.11 $ 29
30 25.91 $ 22.73 $ 141.8 $ 160.9 $ 379.8 $ 425.8 $ 861.5 $ 426.3 $ 119.3 $ 58.59 $ 34.29 $ 30
31 25.53 $ 22.71 $ 153.9 $ 510.6 $ 857.7 $ 123.9 $ 33.10 $ 31
Mean 34.37 $ 22.52 $ 23.01 $ 58.65 $ 120.3 $ 202.6 $ 288.5 $1317 $ 971.7 $ 215.1 $ 87.43 $ 44.93 $
Median 31.27 $ 22.37 $ 22.73 $ 41.20 $ 117.4 $ 181.0 $ 263.8 $1154 $ 879.0 $ 194.3 $ 90.06 $ 44.95 $
Maximum 49.62 $ 24.80 $ 28.76 $ 159.7 $ 160.9 $ 379.8 $ 510.6 $2701 $2033 $ 399.8 $ 115.8 $ 57.01 $
Minimum 25.53 $ 20.72 $ 18.78 $ 22.53 $ 76.99 $ 138.6 $ 206.6 $ 857.7 $ 426.3 $ 118.7 $ 58.59 $ 33.10 $
Total 1065 $ 630.6 $ 713.5 $ 1760 $ 3730 $ 6077 $ 8942 $40836 $29150 $ 6667 $ 2623 $ 1393 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 283.8 $ " ... Relative Uncertainty +/-10%
Ann. Median 104.6 $ $ ... Relative Uncertainty +/-20%
Annual Total 103587 $
Maximum Minimum
Daily 2701 $ 18.78 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 32.54$ 1435 $ 110.2 $ 63.46$ 459.5 $ 1574 $ 1581 $ 2802 " 7594 " 2515 " 606.8 $ 144.3 $ 1
2 31.90$ 1152 $ 105.4 $ 61.46$ 455.4 $ 1491 $ 1509 $ 2678 " 7396 " 2617 " 575.0 $ 138.3 $ 2
3 31.13$ 961.3 $ 102.6 $ 61.52$ 440.8 $ 1416 $ 1448 $ 2542 " 6863 " 2814 " 545.8 $ 133.5 $ 3
4 29.58$ 818.9 $ 99.64$ 62.66$ 419.9 $ 1325 $ 1374 $ 2453 " 6491 " 2834 " 515.7 $ 129.7 $ 4
5 29.89$ 696.5 $ 97.17$ 256.4 $ 397.7 $ 1223 $ 1290 $ 2577 " 5886 " 2842 " 485.3 $ 125.8 $ 5
6 29.64$ 596.0 $ 94.83$ 632.8 $ 381.6 $ 1198 $ 1208 $ 2627 " 5123 " 2760 " 457.4 $ 123.4 $ 6
7 29.21$ 525.5 $ 93.47$ 575.4 $ 379.0 $ 1222 $ 1126 $ 2827 " 4555 " 2774 " 431.8 $ 121.3 $ 7
8 28.68$ 481.2 $ 91.16$ 503.9 $ 371.4 $ 1225 $ 1082 $ 3175 " 4480 " 2967 " 410.1 $ 117.3 $ 8
9 28.33$ 447.8 $ 89.40$ 447.7 $ 375.3 $ 1279 $ 1110 $ 3836 " 4495 " 3294 " 391.7 $ 114.4 $ 9
10 28.01$ 421.8 $ 86.56$ 403.5 $ 368.7 $ 1329 $ 1305 $ 4398 " 4379 " 3477 " 375.5 $ 112.1 $ 10
11 27.70$ 397.7 $ 84.45$ 371.6 $ 358.3 $ 1484 $ 1950 $ 4832 " 4259 " 3506 " 373.1 $ 108.4 $ 11
12 28.35$ 373.5 $ 82.43$ 348.1 $ 347.8 $ 1705 $ 2404 " 5575 " 4092 " 3308 " 372.4 $ 116.9 $ 12
13 26.95$ 348.0 $ 80.98$ 332.8 $ 340.7 $ 1999 " 2538 " 6012 " 3688 " 3023 " 359.8 $ 119.2 $ 13
14 26.26$ 320.8 $ 79.05$ 350.4 $ 351.9 $ 2011 " 2539 " 5731 " 3285 " 2688 " 344.3 $ 119.9 $ 14
15 25.61$ 294.9 $ 77.54$ 337.7 $ 365.1 $ 1992 " 2471 " 5192 " 2975 " 2420 " 330.4 $ 123.2 $ 15
16 25.02$ 273.7 $ 75.95$ 349.4 $ 369.0 $ 1989 " 4044 " 4714 " 2824 " 2238 " 313.8 $ 119.7 $ 16
17 24.42$ 247.3 $ 72.99$ 431.9 $ 363.7 $ 1990 "11530 " 4418 " 2762 " 2078 " 296.8 $ 112.4 $ 17
18 30.64$ 223.2 $ 70.14$ 806.5 $ 350.1 $ 2002 "14106 " 4876 " 2602 " 1905 " 281.9 $ 106.8 $ 18
19 53.57$ 204.0 $ 68.29$ 896.4 $ 334.3 $ 2037 "11847 " 5863 " 2567 " 1738 $ 268.3 $ 103.3 $ 19
20 68.57$ 188.7 $ 66.67$ 949.3 $ 321.9 $ 1971 " 9238 " 5930 " 2735 " 1579 $ 254.5 $ 100.5 $ 20
21 143.9 $ 175.5 $ 65.28$ 931.4 $ 356.1 $ 1929 " 7322 " 5669 " 2757 " 1454 $ 239.7 $ 99.56$ 21
22 153.5 $ 166.8 $ 63.62$ 838.6 $ 369.0 $ 1969 " 6591 " 5575 " 2618 " 1318 $ 230.0 $ 97.69$ 22
23 102.8 $ 156.4 $ 61.46$ 741.0 $ 399.2 $ 1943 " 6204 " 5552 " 2641 " 1188 $ 220.5 $ 95.23$ 23
24 81.94$ 145.9 $ 61.11$ 664.7 $ 460.7 $ 1875 " 5441 " 5191 " 2840 " 1074 $ 209.8 $ 92.38$ 24
25 663.2 $ 134.5 $ 60.61$ 624.4 $ 672.2 $ 1839 " 4787 " 4762 " 2830 " 976.3 $ 199.9 $ 88.76$ 25
26 8177 " 127.8 $ 62.18$ 584.7 $ 882.4 $ 1822 " 4416 " 4308 " 2707 " 899.1 $ 189.7 $ 85.49$ 26
27 9978 " 122.8 $ 66.05$ 548.1 $ 1390 $ 1765 $ 4049 " 4104 " 2504 " 836.8 $ 178.7 $ 86.48$ 27
28 6468 " 118.1 $ 63.39$ 518.2 $ 1644 $ 1718 $ 3607 " 5078 " 2634 " 775.9 $ 167.4 $ 86.69$ 28
29 3540 " 113.8 $ 60.30$ 498.9 $ 1807 $ 1655 $ 3265 " 7010 " 2810 " 725.1 $ 158.2 $ 95.94$ 29
30 2326 " 61.79$ 476.3 $ 1926 " 1603 $ 3015 " 7634 " 2644 " 681.8 $ 150.2 $ 202.9 $ 30
31 1805 $ 63.69$ 1786 $ 2867 " 7437 " 644.7 $ 197.5 $ 31
Mean 1099 $ 402.4 $ 78.01 $ 489.0 $ 620.8 $1686 $4105 $4690 "3868 "2063 $ 331.2 $ 116.7 $
Median 31.13 $ 294.9 $ 75.95 $ 487.6 $ 379.0 $1742 $2867 $4832 "2907 "2238 $ 322.1 $ 114.4 $
Maximum 9978 $ 1435 $ 110.2 $ 949.3 $ 1926 $ 2037 $14106 $ 7634 " 7594 " 3506 $ 606.8 $ 202.9 $
Minimum 24.42 $ 113.8 $ 60.30 $ 61.46 $ 321.9 $1198 $1082 $2453 "2504 " 644.7 $ 150.2 $ 85.49 $
Total 34074 $ 11669 $ 2418 $ 14669 $ 19244 $ 50578 $127266 $145377 "116040 " 63951 $ 9935 $ 3619 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1636 $ " ... Relative Uncertainty +/-10%
Ann. Median 590.4 $ $ ... Relative Uncertainty +/-20%
Annual Total 598840 $
Maximum Minimum
Daily 14106 $ 24.42 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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
1 184.8 $ 47.86$ 808.6 $ 133.3 $ 88.54$ 154.0 $ 159.6 $ 2414 " 2370 " 2091 " 371.4 $ 112.5 $ 1
2 174.5 $ 47.43$ 684.6 $ 129.6 $ 86.58$ 158.3 $ 164.4 $ 2853 " 2178 " 2250 " 350.9 $ 108.6 $ 2
3 163.4 $ 46.80$ 588.8 $ 127.5 $ 85.31$ 165.5 $ 171.0 $ 3078 " 2013 " 2197 " 336.4 $ 106.4 $ 3
4 153.4 $ 46.49$ 520.8 $ 129.2 $ 87.16$ 178.2 $ 174.5 $ 2924 " 1875 " 2062 " 313.6 $ 108.7 $ 4
5 143.2 $ 45.40$ 472.0 $ 132.0 $ 88.61$ 180.4 $ 179.3 $ 2838 " 1733 $ 1811 $ 296.6 $ 106.1 $ 5
6 133.1 $ 44.40$ 430.2 $ 130.9 $ 90.29$ 182.2 $ 180.9 $ 2815 " 1563 $ 1553 $ 282.4 $ 102.9 $ 6
7 125.7 $ 43.20$ 393.8 $ 127.6 $ 93.71$ 188.3 $ 190.1 $ 2766 " 1426 $ 1370 $ 268.1 $ 100.8 $ 7
8 117.9 $ 41.65$ 364.5 $ 121.7 $ 91.60$ 213.3 $ 196.0 $ 3113 " 1307 $ 1223 $ 253.8 $ 99.31$ 8
9 112.4 $ 40.19$ 340.0 $ 118.7 $ 89.82$ 236.5 $ 198.7 $ 4674 " 1206 $ 1098 $ 240.6 $ 98.41$ 9
10 107.3 $ 39.88$ 312.3 $ 116.1 $ 88.22$ 237.1 $ 384.6 $ 6761 " 1119 $ 998.7 $ 229.0 $ 96.49$ 10
11 102.5 $ 41.02$ 286.8 $ 113.5 $ 87.35$ 231.3 $ 435.5 $ 7347 " 1057 $ 922.1 $ 217.5 $ 94.19$ 11
12 97.03$ 41.56$ 268.9 $ 111.3 $ 87.29$ 223.3 $ 436.9 $ 6608 " 999.2 $ 866.6 $ 208.5 $ 90.41$ 12
13 91.17$ 42.68$ 255.4 $ 108.3 $ 87.37$ 216.7 $ 457.8 $ 6343 " 937.9 $ 806.4 $ 199.0 $ 87.53$ 13
14 86.62$ 44.72$ 241.0 $ 106.3 $ 91.34$ 213.2 $ 480.4 $ 6709 " 882.9 $ 746.4 $ 190.1 $ 86.05$ 14
15 83.06$ 44.60$ 225.3 $ 105.1 $ 100.1 $ 204.3 $ 527.5 $ 7068 " 828.8 $ 690.7 $ 185.7 $ 83.31$ 15
16 79.85$ 43.93$ 214.1 $ 103.7 $ 99.93$ 197.9 $ 604.7 $ 8933 " 770.1 $ 661.4 $ 181.8 $ 81.11$ 16
17 76.87$ 44.27$ 203.9 $ 101.7 $ 99.49$ 193.8 $ 631.0 $10993 " 718.3 $ 626.3 $ 175.4 $ 82.68$ 17
18 74.01$ 2884 $ 195.1 $ 100.6 $ 104.1 $ 186.7 $ 624.8 $11811 " 672.7 $ 618.4 $ 170.1 $ 95.09$ 18
19 70.19$16850 " 185.9 $ 100.3 $ 106.6 $ 181.8 $ 630.7 $11217 " 632.9 $ 654.7 $ 164.6 $ 91.48$ 19
20 67.82$17219 " 178.4 $ 102.1 $ 105.8 $ 177.3 $ 632.8 $10731 " 600.9 $ 705.4 $ 163.2 $ 84.59$ 20
21 65.05$10597 " 173.3 $ 107.8 $ 122.3 $ 181.4 $ 690.6 $10319 " 591.7 $ 676.6 $ 161.3 $ 90.41$ 21
22 62.81$ 6064 " 203.0 $ 108.6 $ 128.7 $ 191.1 $ 745.4 $ 9488 " 617.6 $ 595.5 $ 154.4 $ 164.6 $ 22
23 60.35$ 3612 " 202.6 $ 105.3 $ 126.7 $ 178.2 $ 821.7 $ 8341 " 857.6 $ 533.8 $ 148.8 $ 160.9 $ 23
24 59.22$ 2569 " 211.3 $ 100.8 $ 130.4 $ 172.1 $ 802.9 $ 7235 " 1300 $ 499.0 $ 143.0 $ 150.1 $ 24
25 59.13$ 2003 " 188.8 $ 96.02$ 134.5 $ 166.7 $ 802.8 $ 6233 " 1524 $ 477.6 $ 139.1 $ 140.8 $ 25
26 58.99$ 1581 $ 173.8 $ 93.30$ 143.6 $ 159.3 $ 813.5 $ 5303 " 1629 $ 452.8 $ 134.5 $ 131.6 $ 26
27 56.55$ 1240 $ 162.8 $ 90.68$ 154.3 $ 157.2 $ 868.5 $ 4546 " 1864 $ 431.9 $ 129.6 $ 123.4 $ 27
28 54.70$ 987.2 $ 153.8 $ 89.94$ 154.1 $ 156.1 $ 1110 $ 3877 " 1848 " 417.8 $ 125.8 $ 114.1 $ 28
29 53.27$ 145.8 $ 90.37$ 149.1 $ 153.5 $ 1713 $ 3337 " 1760 $ 411.4 $ 121.7 $ 106.1 $ 29
30 50.56$ 140.9 $ 89.93$ 147.1 $ 155.6 $ 2152 " 2922 " 1817 $ 405.8 $ 117.4 $ 99.16$ 30
31 48.52$ 137.1 $ 149.1 $ 2317 " 2605 " 389.5 $ 92.89$ 31
Mean 92.71 $2370 $ 292.4 $ 109.7 $ 109.6 $ 186.4 $ 654.8 $6006 "1290 $ 943.4 $ 205.8 $ 106.2 $
Median 79.85 $ 46.65 $ 214.1 $ 107.1 $ 99.93 $ 181.6 $ 604.7 $6233 "1253 $ 690.7 $ 183.7 $ 99.31 $
Maximum 184.8 $17219 $ 808.6 $ 133.3 $ 154.3 $ 237.1 $ 2317 $11811 " 2370 $ 2250 $ 371.4 $ 164.6 $
Minimum 48.52 $ 39.88 $ 137.1 $ 89.93 $ 85.31 $ 153.5 $ 159.6 $2414 " 591.7 $ 389.5 $ 117.4 $ 81.11 $
Total 2874 $ 66352 $ 9064 $ 3292 $ 3399 $ 5591 $ 20299 $186201 " 38700 $ 29244 $ 6174 $ 3291 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1026 $ " ... Relative Uncertainty +/-10%
Ann. Median 181.8 $ $ ... Relative Uncertainty +/-20%
Annual Total 374481 $
Maximum Minimum
Daily 17219 $ 39.88 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 86.84$ 240.3 $ 40.58$ 26.45$ 173.9 $ 192.0 $ 478.5 $ 4834 " 4931 " 600.5 $ 285.8 $ 96.97$ 1
2 82.08$ 212.1 $ 39.83$ 27.21$ 150.7 $ 223.8 $ 526.9 $ 4963 " 5158 " 595.5 $ 269.0 $ 94.51$ 2
3 77.93$ 190.3 $ 38.32$ 27.13$ 149.6 $ 181.1 $ 638.2 $ 5077 " 4659 " 602.8 $ 254.5 $ 91.75$ 3
4 74.71$ 171.1 $ 37.14$ 27.60$ 172.3 $ 192.5 $ 1305 $ 5380 " 4022 " 587.7 $ 241.9 $ 90.18$ 4
5 70.79$ 152.5 $ 36.41$ 28.43$ 161.0 $ 232.4 $ 1547 $ 6579 " 3787 " 568.6 $ 230.7 $ 89.52$ 5
6 65.64$ 137.3 $ 35.72$ 28.95$ 147.1 $ 254.7 $ 1504 $ 8053 " 3692 " 559.9 $ 222.8 $ 95.75$ 6
7 62.05$ 122.0 $ 34.92$ 29.18$ 134.2 $ 304.6 $ 1560 $ 8465 " 3462 " 562.6 $ 212.4 $ 90.77$ 7
8 59.34$ 110.4 $ 34.35$ 29.13$ 123.5 $ 264.4 $ 1849 $ 8486 " 3154 " 566.1 $ 201.1 $ 87.81$ 8
9 57.12$ 100.7 $ 32.85$ 28.67$ 114.4 $ 246.4 $ 1861 " 8270 " 2889 " 554.3 $ 191.4 $ 85.10$ 9
10 54.77$ 92.55$ 31.64$ 28.39$ 106.8 $ 270.2 $ 1680 $ 9451 " 2693 " 564.1 $ 183.7 $ 82.19$ 10
11 52.52$ 84.74$ 30.96$ 28.66$ 99.76$ 307.7 $ 1504 $11271 " 2529 " 589.2 $ 176.6 $ 80.46$ 11
12 50.59$ 77.65$ 30.58$ 30.01$ 93.52$ 369.4 $ 1468 $12288 " 2391 " 575.1 $ 171.0 $ 78.53$ 12
13 50.07$ 71.14$ 30.19$ 29.23$ 87.70$ 547.7 $ 1463 $12332 " 2252 " 564.1 $ 166.7 $ 75.63$ 13
14 48.79$ 66.63$ 33.04$ 29.16$ 82.90$ 788.4 $ 1409 $10719 " 2111 " 573.9 $ 160.3 $ 73.11$ 14
15 47.42$ 63.62$ 33.01$ 29.12$ 79.10$ 1001 $ 1302 $ 9324 " 1974 " 581.6 $ 153.1 $ 70.77$ 15
16 53.82$ 61.02$ 31.23$ 28.88$ 76.15$ 935.5 $ 1254 $ 8780 " 1834 $ 579.1 $ 146.1 $ 71.87$ 16
17 63.13$ 59.70$ 29.81$ 28.49$ 73.27$ 822.8 $ 1270 $ 8296 " 1697 $ 570.0 $ 140.5 $ 72.71$ 17
18 60.74$ 58.74$ 28.60$ 29.01$ 69.74$ 745.8 $ 1343 $ 7419 " 1569 $ 549.4 $ 134.7 $ 70.86$ 18
19 69.54$ 55.22$ 28.55$ 29.47$ 67.18$ 672.1 $ 1393 $ 6319 " 1452 $ 520.3 $ 128.5 $ 67.75$ 19
20 77.46$ 51.95$ 28.91$ 30.01$ 65.03$ 649.8 $ 1430 $ 5376 " 1342 $ 510.7 $ 122.8 $ 64.74$ 20
21 64.91$ 49.59$ 29.37$ 30.40$ 62.54$ 674.5 $ 1398 $ 4672 " 1238 $ 503.9 $ 119.3 $ 62.97$ 21
22 55.90$ 48.25$ 28.70$ 34.07$ 59.78$ 717.2 $ 1662 $ 4192 " 1144 $ 490.4 $ 116.6 $ 61.55$ 22
23 50.28$ 46.84$ 27.90$ 35.46$ 56.64$ 717.9 $ 2607 " 3788 " 1054 $ 477.3 $ 113.6 $ 59.45$ 23
24 47.49$ 45.61$ 26.16$ 34.37$ 57.54$ 722.3 $ 3454 " 3410 " 973.6 $ 456.3 $ 110.3 $ 57.16$ 24
25 47.58$ 44.84$ 27.01$ 33.66$ 98.71$ 686.0 $ 3731 " 3128 " 901.1 $ 435.6 $ 108.7 $ 55.32$ 25
26 47.22$ 44.18$ 28.17$ 32.91$ 98.56$ 621.5 $ 3757 " 2873 " 832.9 $ 413.1 $ 106.4 $ 53.85$ 26
27 45.81$ 42.18$ 27.65$ 32.73$ 128.2 $ 569.7 $ 3914 " 2654 " 769.3 $ 388.8 $ 103.7 $ 52.66$ 27
28 43.76$ 40.94$ 27.62$ 33.11$ 125.0 $ 529.9 $ 4366 " 2535 " 711.2 $ 366.3 $ 102.0 $ 51.23$ 28
29 136.2 $ 27.67$ 33.49$ 104.7 $ 505.7 $ 4879 " 2689 " 661.1 $ 346.0 $ 100.1 $ 49.88$ 29
30 316.3 $ 26.78$ 118.4 $ 112.7 $ 490.7 $ 5152 " 3452 " 625.8 $ 326.6 $ 98.57$ 48.84$ 30
31 275.4 $ 26.29$ 192.7 $ 4918 " 4352 " 304.9 $ 48.55$ 31
Mean 77.30 $ 90.79 $ 31.29 $ 33.06 $ 107.3 $ 514.6 $2149 $6433 "2217 $ 512.4 $ 162.4 $ 72.01 $
Median 59.34 $ 65.13 $ 30.19 $ 29.17 $ 99.76 $ 538.8 $1504 $5380 "1904 $ 559.9 $ 149.6 $ 71.87 $
Maximum 316.3 $ 240.3 $ 40.58$ 118.4 $ 192.7 $ 1001 $ 5152 $12332 " 5158 $ 602.8 $ 285.8 $ 96.97$
Minimum 43.76 $ 40.94 $ 26.16 $ 26.45 $ 56.64 $ 181.1 $ 478.5 $2535 " 625.8 $ 304.9 $ 98.57 $ 48.55 $
Total 2396 $ 2542 $ 970.0$ 991.8$ 3325 $ 15438 $ 66624 $199426 " 66509 $ 15885 $ 4873 $ 2232 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1044 $ " ... Relative Uncertainty +/-10%
Ann. Median 146.1 $ $ ... Relative Uncertainty +/-20%
Annual Total 381211 $
Maximum Minimum
Daily 12332 $ 26.16 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 48.60 $ 30.67 $ 21.90 $ 20.98 $ 70.28 $ 71.56 $ 609.1 $ 681.0 $1361 $ 398.6 $ 155.4 $ 46.77 $ 1
2 48.37 $ 30.51 $ 21.29 $ 21.31 $ 69.18 $ 71.63 $ 602.1 $ 645.8 $1835 $ 376.8 $ 164.0 $ 45.79 $ 2
3 47.29 $ 29.87 $ 21.23 $ 21.53 $ 68.00 $ 69.81 $ 593.6 $ 605.7 $2283 " 358.7 $ 166.8 $ 44.96 $ 3
4 45.76 $ 29.21 $ 21.04 $ 21.81 $ 70.70 $ 68.90 $ 640.5 $ 566.6 $3221 " 352.1 $ 163.3 $ 43.90 $ 4
5 44.51 $ 28.92 $ 20.56 $ 21.69 $ 74.10 $ 67.40 $ 722.8 $ 536.5 $3966 " 347.3 $ 162.5 $ 43.35 $ 5
6 43.80 $ 28.46 $ 20.27 $ 21.63 $ 78.84 $ 68.59 $ 871.7 $ 525.1 $3998 " 340.2 $ 159.4 $ 42.88 $ 6
7 42.87 $ 27.92 $ 23.01 $ 21.66 $ 74.58 $ 79.49 $1065 $ 510.9 $3846 " 330.9 $ 155.2 $ 42.68 $ 7
8 41.52 $ 27.27 $ 24.71 $ 21.62 $ 71.52 $ 82.57 $1196 $ 501.0 $3552 " 320.4 $ 147.2 $ 41.24 $ 8
9 40.69 $ 26.63 $ 25.57 $ 21.71 $ 68.66 $ 91.69 $1153 $ 506.5 $3070 " 320.8 $ 139.6 $ 40.16 $ 9
10 40.04 $ 26.01 $ 26.57 $ 21.85 $ 66.20 $ 104.5 $1116 $ 505.1 $2629 " 308.3 $ 131.2 $ 39.15 $ 10
11 39.34 $ 25.70 $ 25.67 $ 22.04 $ 65.24 $ 113.7 $1098 $ 488.5 $2310 " 300.0 $ 121.2 $ 37.88 $ 11
12 38.39 $ 25.29 $ 24.99 $ 21.87 $ 64.87 $ 114.5 $1014 $ 484.8 $2012 " 291.5 $ 112.3 $ 36.99 $ 12
13 37.77 $ 24.78 $ 25.04 $ 22.07 $ 64.72 $ 124.1 $ 943.8 $ 486.9 $1758 $ 271.7 $ 105.9 $ 36.18 $ 13
14 36.85 $ 24.39 $ 25.16 $ 22.71 $ 63.70 $ 149.8 $ 946.4 $ 477.9 $1528 $ 256.1 $ 100.5 $ 35.34 $ 14
15 35.89 $ 23.80 $ 25.05 $ 22.51 $ 62.51 $ 157.8 $ 970.9 $ 488.8 $1351 $ 244.7 $ 95.18 $ 34.39 $ 15
16 35.27 $ 23.32 $ 24.56 $ 22.69 $ 66.84 $ 162.4 $ 979.8 $ 630.9 $1187 $ 235.3 $ 90.63 $ 33.50 $ 16
17 35.20 $ 23.28 $ 24.35 $ 22.68 $ 65.30 $ 197.2 $ 959.9 $ 803.3 $1044 $ 225.8 $ 86.41 $ 32.58 $ 17
18 34.61 $ 23.32 $ 24.49 $ 23.15 $ 63.36 $ 231.1 $ 886.8 $ 967.9 $ 935.1 $ 215.9 $ 82.41 $ 31.86 $ 18
19 34.03 $ 23.20 $ 24.40 $ 31.09 $ 62.66 $ 247.9 $ 792.3 $1097 $ 856.0 $ 209.0 $ 79.03 $ 31.37 $ 19
20 33.49 $ 23.15 $ 23.97 $ 71.07 $ 63.71 $ 247.6 $ 727.4 $1219 $ 801.0 $ 203.5 $ 76.66 $ 30.69 $ 20
21 32.98 $ 23.26 $ 23.64 $ 74.06 $ 63.45 $ 235.1 $ 698.6 $1220 $ 759.5 $ 195.2 $ 72.19 $ 30.03 $ 21
22 32.68 $ 23.19 $ 24.21 $ 73.29 $ 63.38 $ 235.7 $ 702.3 $1178 $ 721.5 $ 187.0 $ 69.11 $ 29.52 $ 22
23 35.47 $ 22.97 $ 24.65 $ 72.14 $ 63.48 $ 287.4 $ 739.4 $1099 $ 679.9 $ 179.5 $ 66.24 $ 28.88 $ 23
24 36.57 $ 22.63 $ 23.71 $ 69.21 $ 64.48 $ 361.4 $ 710.5 $1045 $ 627.1 $ 172.9 $ 62.99 $ 28.25 $ 24
25 33.90 $ 22.46 $ 22.97 $ 65.79 $ 65.20 $ 415.4 $ 671.7 $1004 $ 580.8 $ 166.5 $ 60.00 $ 27.87 $ 25
26 33.20 $ 22.19 $ 22.41 $ 63.64 $ 67.38 $ 430.1 $ 695.1 $1006 $ 539.2 $ 163.4 $ 57.17 $ 27.76 $ 26
27 32.49 $ 21.90 $ 21.84 $ 62.13 $ 69.36 $ 458.4 $ 714.4 $ 989.0 $ 500.7 $ 158.9 $ 54.55 $ 27.32 $ 27
28 31.61 $ 21.95 $ 21.56 $ 62.59 $ 70.26 $ 453.5 $ 701.1 $ 908.4 $ 466.4 $ 153.2 $ 52.05 $ 26.83 $ 28
29 31.17 $ 21.19 $ 65.19 $ 70.50 $ 532.3 $ 692.2 $ 828.9 $ 436.5 $ 147.4 $ 50.14 $ 26.63 $ 29
30 30.86 $ 20.94 $ 67.80 $ 70.77 $ 605.3 $ 700.5 $ 801.2 $ 415.5 $ 147.5 $ 48.24 $ 25.77 $ 30
31 30.79 $ 20.86 $ 70.94 $ 701.8 $ 958.7 $ 155.2 $ 24.56 $ 31
Mean 37.61 $ 25.22 $ 23.28 $ 39.12 $ 67.55 $ 217.9 $ 826.3 $ 766.7 $1642 $ 249.5 $ 102.9 $ 34.68 $
Median 35.89 $ 24.10 $ 23.71 $ 22.69 $ 66.84 $ 160.1 $ 727.4 $ 681.0 $1269 $ 235.3 $ 92.90 $ 33.50 $
Maximum 48.60 $ 30.67 $ 26.57 $ 74.06 $ 78.84 $ 605.3 $1196 $1220 $3998 $ 398.6 $ 166.8 $ 46.77 $
Minimum 30.79 $ 21.90 $ 20.27 $ 20.98 $ 62.51 $ 67.40 $ 593.6 $ 477.9 $ 415.5 $ 147.4 $ 48.24 $ 24.56 $
Total 1166 $ 706.3 $ 721.8 $ 1174 $ 2094 $ 6537 $25617 $23767 $49271 $ 7734 $ 3087 $ 1075 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 336.8 $ " ... Relative Uncertainty +/-10%
Ann. Median 70.28 $ $ ... Relative Uncertainty +/-20%
Annual Total 122950 $
Maximum Minimum
Daily 3998 $ 20.27 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 24.42 $ 16.77 $ 18.71 $ 18.79 $ 24.59 $ 105.4 $ 903.4 $1226 $ 628.2 $ 560.4 $ 154.7 $ 135.7 $ 1
2 24.53 $ 16.94 $ 18.39 $ 19.01 $ 24.92 $ 125.7 $1071 $1130 $ 626.0 $ 538.6 $ 153.8 $ 127.9 $ 2
3 24.33 $ 17.36 $ 17.62 $ 18.90 $ 24.31 $ 124.9 $1056 $1052 $ 658.1 $ 519.4 $ 153.9 $ 119.8 $ 3
4 23.99 $ 17.32 $ 16.89 $ 18.57 $ 24.73 $ 135.2 $ 959.1 $1059 $ 718.1 $ 508.3 $ 148.0 $ 113.8 $ 4
5 23.80 $ 17.34 $ 17.08 $ 18.95 $ 27.37 $ 153.8 $ 842.1 $1015 $ 776.7 $ 492.2 $ 148.7 $ 108.4 $ 5
6 23.50 $ 17.49 $ 17.03 $ 19.58 $ 36.05 $ 159.8 $ 780.4 $ 971.3 $ 799.0 $ 466.0 $ 151.0 $ 103.7 $ 6
7 23.42 $ 17.27 $ 17.09 $ 19.57 $ 36.96 $ 155.4 $ 773.3 $ 874.6 $ 956.8 $ 442.7 $ 147.4 $ 98.95 $ 7
8 22.90 $ 16.66 $ 17.41 $ 19.41 $ 36.34 $ 143.5 $ 934.6 $ 824.7 $1674 $ 446.6 $ 151.7 $ 94.87 $ 8
9 22.45 $ 16.00 $ 17.38 $ 20.62 $ 34.35 $ 140.7 $1294 $ 853.8 $2323 " 485.5 $ 166.3 $ 90.31 $ 9
10 21.90 $ 15.53 $ 16.27 $ 24.23 $ 33.15 $ 139.6 $1378 $ 873.3 $2696 " 564.1 $ 170.6 $ 88.37 $ 10
11 21.86 $ 15.53 $ 15.98 $ 22.63 $ 33.36 $ 140.5 $1237 $1092 $2898 " 572.9 $ 179.2 $ 87.68 $ 11
12 20.56 $ 15.30 $ 15.91 $ 21.75 $ 34.25 $ 140.6 $1065 $1626 $3133 " 557.4 $ 191.1 $ 83.07 $ 12
13 19.65 $ 15.64 $ 16.01 $ 21.42 $ 34.84 $ 134.2 $ 934.4 $1916 "3060 " 490.1 $ 195.1 $ 79.26 $ 13
14 19.11 $ 15.70 $ 16.50 $ 21.88 $ 34.40 $ 139.3 $ 879.9 $1955 "2616 " 444.9 $ 195.3 $ 74.91 $ 14
15 18.71 $ 15.74 $ 24.53 $ 22.32 $ 34.19 $ 172.3 $ 951.2 $2007 "2201 " 422.8 $ 255.7 $ 72.54 $ 15
16 18.72 $ 15.38 $ 26.09 $ 23.09 $ 34.12 $ 224.7 $1124 $1942 "1862 $ 402.8 $ 315.9 $ 71.31 $ 16
17 18.66 $ 15.11 $ 25.22 $ 22.81 $ 33.18 $ 266.2 $1301 $1852 "1574 $ 378.5 $ 317.5 $ 66.74 $ 17
18 18.41 $ 15.15 $ 25.03 $ 22.34 $ 33.20 $ 253.3 $1448 $2046 "1335 $ 354.3 $ 303.0 $ 63.90 $ 18
19 17.84 $ 15.07 $ 24.08 $ 25.62 $ 33.98 $ 231.3 $1788 $2089 "1152 $ 331.6 $ 280.8 $ 61.65 $ 19
20 17.67 $ 14.75 $ 23.70 $ 24.44 $ 41.80 $ 236.1 $1988 "1937 "1018 $ 305.7 $ 261.3 $ 58.83 $ 20
21 17.84 $ 14.88 $ 23.95 $ 23.83 $ 42.58 $ 253.7 $1984 "1746 $ 948.2 $ 283.4 $ 245.6 $ 56.02 $ 21
22 17.64 $ 15.11 $ 24.25 $ 23.17 $ 41.53 $ 275.5 $1725 $1504 $ 906.1 $ 264.3 $ 230.5 $ 53.75 $ 22
23 18.00 $ 15.73 $ 23.74 $ 22.87 $ 40.06 $ 280.6 $1433 $1308 $ 874.2 $ 247.4 $ 218.5 $ 51.87 $ 23
24 17.60 $ 15.82 $ 22.59 $ 23.36 $ 40.41 $ 259.9 $1241 $1154 $ 825.2 $ 232.9 $ 206.8 $ 50.39 $ 24
25 17.48 $ 16.16 $ 21.36 $ 24.09 $ 48.94 $ 272.3 $1142 $1030 $ 766.2 $ 218.9 $ 194.2 $ 48.15 $ 25
26 17.46 $ 16.71 $ 20.49 $ 24.65 $ 49.46 $ 394.6 $1079 $ 938.4 $ 708.1 $ 205.7 $ 182.2 $ 46.04 $ 26
27 17.52 $ 18.61 $ 20.49 $ 24.59 $ 46.94 $ 525.0 $1052 $ 865.9 $ 661.6 $ 193.1 $ 171.0 $ 44.31 $ 27
28 17.42 $ 19.10 $ 20.70 $ 24.57 $ 48.96 $ 527.6 $1043 $ 815.1 $ 622.7 $ 182.4 $ 160.2 $ 43.29 $ 28
29 17.33 $ 19.42 $ 19.95 $ 24.34 $ 76.73 $ 569.6 $1238 $ 758.3 $ 600.8 $ 172.2 $ 149.5 $ 41.62 $ 29
30 18.00 $ 19.31 $ 24.29 $ 89.33 $ 681.6 $1412 $ 701.9 $ 592.4 $ 162.6 $ 145.0 $ 40.48 $ 30
31 17.20 $ 18.75 $ 91.68 $ 1386 $ 651.5 $ 153.6 $ 38.66 $ 31
Mean 20.00 $ 16.33 $ 20.08 $ 22.19 $ 40.86 $ 245.4 $1208 $1284 $1340 $ 374.2 $ 198.1 $ 74.72 $
Median 18.71 $ 15.82 $ 19.31 $ 22.72 $ 34.84 $ 198.5 $1124 $1092 $ 927.2 $ 402.8 $ 180.7 $ 71.31 $
Maximum 24.53 $ 19.42 $ 26.09 $ 25.62 $ 91.68 $ 681.6 $1988 $2089 $3133 $ 572.9 $ 317.5 $ 135.7 $
Minimum 17.20 $ 14.75 $ 15.91 $ 18.57 $ 24.31 $ 105.4 $ 773.3 $ 651.5 $ 592.4 $ 153.6 $ 145.0 $ 38.66 $
Total 619.9 $ 473.6 $ 622.5 $ 665.7 $ 1267 $ 7363 $37440 $39815 $40211 $11601 $ 5944 $ 2316 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 405.3 $ " ... Relative Uncertainty +/-10%
Ann. Median 125.3 $ $ ... Relative Uncertainty +/-20%
Annual Total 148339 $
Maximum Minimum
Daily 3133 $ 14.75 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 35.99$ 19.56$ 20.77$ 19.39$ 232.1 $ 1169 $ 1457 $ 9717 " 2439 " 1708 $ 869.4 $ 166.3 $ 1
2 34.47$ 19.37$ 20.82$ 19.90$ 226.5 $ 1402 $ 1448 $15570 " 2378 " 1767 $ 825.4 $ 164.4 $ 2
3 33.41$ 18.58$ 22.71$ 19.90$ 211.8 $ 1503 $ 1566 $23843 $ 2341 " 1824 " 768.3 $ 157.5 $ 3
4 32.16$ 18.27$ 25.37$ 20.64$ 206.6 $ 1474 $ 1679 $27680 $ 2325 " 1810 " 698.1 $ 149.3 $ 4
5 30.81$ 17.80$ 25.09$ 20.81$ 219.0 $ 1327 $ 1691 $26127 $ 2320 " 1853 " 634.7 $ 142.1 $ 5
6 29.70$ 17.65$ 24.62$ 20.93$ 207.3 $ 1136 $ 1760 $22210 " 2294 " 1916 " 591.2 $ 136.7 $ 6
7 29.50$ 27.29$ 24.41$ 21.23$ 193.1 $ 1033 $ 1926 "20008 " 2194 " 1799 $ 560.8 $ 133.2 $ 7
8 29.07$ 36.52$ 23.77$ 22.41$ 185.9 $ 1000 $ 2332 "19599 " 2085 " 1653 $ 532.4 $ 129.4 $ 8
9 28.89$ 34.55$ 23.44$ 22.44$ 181.5 $ 955.8 $ 2920 "17277 " 2067 " 1576 $ 505.8 $ 124.9 $ 9
10 28.57$ 32.31$ 23.64$ 23.62$ 186.8 $ 908.5 $ 3677 "14003 " 2264 " 1538 $ 479.3 $ 119.4 $ 10
11 28.08$ 30.94$ 23.84$ 29.11$ 205.7 $ 859.1 $ 4743 "11962 " 2392 " 1510 $ 449.7 $ 116.9 $ 11
12 27.00$ 30.54$ 23.59$ 38.59$ 210.9 $ 943.4 $ 5748 "10857 " 2661 " 1448 $ 420.6 $ 119.0 $ 12
13 26.42$ 30.66$ 22.26$ 37.27$ 931.4 $ 1077 $ 7057 "10245 " 3210 " 1393 $ 393.4 $ 120.1 $ 13
14 25.78$ 30.10$ 21.70$ 35.64$ 1368 $ 1181 $ 9295 " 9545 " 3882 " 1290 $ 367.5 $ 118.3 $ 14
15 25.23$ 28.94$ 21.49$ 36.06$ 1060 $ 1153 $11312 " 8670 " 4243 " 1218 $ 343.6 $ 114.8 $ 15
16 24.22$ 27.41$ 21.16$ 42.17$ 844.3 $ 1188 $11865 " 8612 " 4673 " 1134 $ 322.5 $ 111.2 $ 16
17 23.93$ 26.10$ 21.06$ 43.86$ 695.8 $ 1152 $11456 " 8731 " 4748 " 1044 $ 300.4 $ 108.4 $ 17
18 23.45$ 25.90$ 20.86$ 268.2 $ 602.3 $ 1064 $10472 " 7851 " 4196 " 959.9 $ 280.5 $ 106.3 $ 18
19 23.23$ 24.37$ 21.01$ 770.4 $ 538.2 $ 981.2 $ 9874 " 6908 " 3992 " 894.1 $ 263.2 $ 104.5 $ 19
20 22.72$ 23.60$ 20.87$ 620.5 $ 519.6 $ 959.3 $ 9093 " 6251 " 3908 " 897.7 $ 248.6 $ 100.4 $ 20
21 21.91$ 23.15$ 20.52$ 499.5 $ 508.3 $ 1065 $ 7892 " 5594 " 3823 " 1033 $ 238.2 $ 98.03$ 21
22 21.75$ 23.13$ 20.07$ 419.2 $ 500.3 $ 1194 $ 6644 " 5068 " 3683 " 1292 $ 233.0 $ 95.28$ 22
23 21.57$ 22.71$ 19.33$ 369.0 $ 495.1 $ 1254 $ 5704 " 4670 " 3376 " 1594 $ 222.6 $ 92.91$ 23
24 21.43$ 22.30$ 19.12$ 344.2 $ 481.6 $ 1300 $ 5212 " 4318 " 3009 " 1708 $ 213.3 $ 90.45$ 24
25 21.07$ 21.79$ 19.10$ 337.8 $ 460.7 $ 1334 $ 5091 " 3988 " 2647 " 1670 $ 204.7 $ 88.14$ 25
26 20.84$ 21.41$ 19.14$ 326.8 $ 450.2 $ 1614 $ 5404 " 3584 " 2343 " 1483 $ 196.9 $ 86.28$ 26
27 20.79$ 21.27$ 18.92$ 303.6 $ 457.3 $ 1784 $ 5984 " 3284 " 2113 " 1269 $ 192.4 $ 84.92$ 27
28 20.34$ 20.87$ 18.73$ 277.8 $ 492.0 $ 1700 $ 6532 " 3031 " 1998 " 1141 $ 186.7 $ 83.82$ 28
29 20.29$ 18.57$ 262.9 $ 623.8 $ 1559 $ 6677 " 2808 " 1884 " 1093 $ 179.3 $ 82.07$ 29
30 20.23$ 18.82$ 246.8 $ 827.7 $ 1458 $ 7079 " 2648 " 1778 $ 1028 $ 171.1 $ 80.40$ 30
31 20.10$ 18.74$ 979.7 $ 8014 " 2524 " 939.3 $ 79.31$ 31
Mean 25.58$ 24.90$ 21.40$ 184.0 $ 493.7 $ 1224 $ 5858 $10554 $ 2909 $ 1403 $ 396.5 $ 113.1 $
Median 24.22 $ 23.37 $ 21.01 $ 40.38 $ 481.6 $1175 $5748 $8670 $2416 $1448 $ 333.1 $ 111.2 $
Maximum 35.99$ 36.52$ 25.37$ 770.4 $ 1368 $ 1784 $11865 $27680 $ 4748 $ 1916 $ 869.4 $ 166.3 $
Minimum 20.10 $ 17.65 $ 18.57 $ 19.39 $ 181.5 $ 859.1 $1448 $2524 $1778 $ 894.1 $ 171.1 $ 79.31 $
Total 793.0$ 697.1$ 663.6$ 5521 $ 15304 $ 36730 $181605 $327184 $ 87268 $ 43482 $ 11894 $ 3505 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1958 $ " ... Relative Uncertainty +/-10%
Ann. Median 460.7 $ $ ... Relative Uncertainty +/-20%
Annual Total 714644 $
Maximum Minimum
Daily 27680 $ 17.65 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 77.34 $ 42.40 $ 30.16 $ 25.58 $ 30.41 $ 126.9 $ 418.7 $2864 "2361 " 823.0 $ 301.3 $ 163.9 $ 1
2 75.46 $ 41.91 $ 30.55 $ 26.07 $ 30.32 $ 131.6 $ 412.0 $2828 "2101 " 748.4 $ 298.7 $ 154.7 $ 2
3 74.17 $ 41.28 $ 29.07 $ 27.54 $ 30.40 $ 161.6 $ 390.1 $2814 "1893 " 684.5 $ 295.3 $ 147.0 $ 3
4 73.02 $ 40.74 $ 28.46 $ 28.56 $ 30.01 $ 160.7 $ 366.3 $3030 "1708 $ 629.0 $ 306.7 $ 139.5 $ 4
5 71.82 $ 40.28 $ 28.42 $ 27.25 $ 29.64 $ 154.6 $ 353.5 $3446 "1541 $ 595.7 $ 305.1 $ 132.8 $ 5
6 70.53 $ 40.01 $ 28.86 $ 25.98 $ 29.22 $ 144.2 $ 338.3 $3908 "1406 $ 560.1 $ 294.5 $ 126.5 $ 6
7 67.83 $ 39.82 $ 28.74 $ 25.29 $ 28.96 $ 136.3 $ 325.7 $4267 "1291 $ 543.4 $ 290.5 $ 120.9 $ 7
8 65.17 $ 39.33 $ 27.87 $ 25.66 $ 28.98 $ 129.9 $ 317.2 $4192 "1198 $ 523.3 $ 294.1 $ 115.8 $ 8
9 64.29 $ 38.06 $ 26.66 $ 28.30 $ 29.00 $ 125.5 $ 324.4 $4458 "1125 $ 512.6 $ 312.5 $ 111.2 $ 9
10 63.81 $ 37.95 $ 27.57 $ 29.45 $ 28.49 $ 130.8 $ 338.7 $5578 "1055 $ 495.2 $ 331.4 $ 107.6 $ 10
11 62.42 $ 38.02 $ 26.72 $ 29.43 $ 28.42 $ 126.8 $ 354.8 $6851 " 999.2 $ 466.5 $ 355.0 $ 102.7 $ 11
12 60.93 $ 37.24 $ 26.19 $ 29.12 $ 36.24 $ 128.2 $ 392.7 $7179 "1038 $ 445.9 $ 365.8 $ 96.10 $ 12
13 59.93 $ 36.22 $ 25.53 $ 28.43 $ 40.04 $ 134.6 $ 428.3 $6878 "1798 $ 428.9 $ 364.9 $ 91.06 $ 13
14 59.75 $ 35.82 $ 25.13 $ 27.91 $ 39.42 $ 133.1 $ 437.8 $6254 "2089 " 414.3 $ 352.2 $ 86.46 $ 14
15 59.35 $ 35.72 $ 24.98 $ 28.42 $ 38.74 $ 137.3 $ 410.8 $5808 "2144 " 399.1 $ 340.6 $ 83.36 $ 15
16 58.96 $ 35.29 $ 24.55 $ 28.82 $ 38.17 $ 146.0 $ 406.9 $5586 "2192 " 396.2 $ 323.0 $ 83.88 $ 16
17 57.61 $ 34.53 $ 24.75 $ 29.08 $ 39.13 $ 160.7 $ 424.3 $5587 "2063 " 382.4 $ 303.8 $ 78.41 $ 17
18 56.77 $ 33.44 $ 24.92 $ 28.90 $ 42.14 $ 189.2 $ 429.1 $5293 "1889 " 362.3 $ 292.6 $ 72.73 $ 18
19 55.17 $ 32.95 $ 25.02 $ 29.16 $ 44.05 $ 213.5 $ 428.9 $4805 "1777 $ 350.0 $ 282.8 $ 69.07 $ 19
20 53.31 $ 31.84 $ 25.53 $ 29.03 $ 44.93 $ 274.7 $ 442.4 $4530 "1679 $ 337.6 $ 277.1 $ 65.77 $ 20
21 52.24 $ 30.99 $ 25.67 $ 28.71 $ 45.69 $ 293.1 $ 525.9 $4779 "1588 $ 320.8 $ 272.7 $ 61.87 $ 21
22 51.09 $ 30.24 $ 25.01 $ 27.91 $ 49.60 $ 288.8 $ 650.5 $5090 "1580 $ 302.9 $ 259.5 $ 59.54 $ 22
23 49.98 $ 29.65 $ 23.98 $ 27.73 $ 54.71 $ 297.4 $ 855.8 $5845 "1547 $ 287.2 $ 246.6 $ 58.09 $ 23
24 49.03 $ 28.95 $ 23.70 $ 28.09 $ 62.80 $ 282.5 $1056 $7287 "1470 $ 277.1 $ 235.3 $ 55.41 $ 24
25 48.56 $ 28.69 $ 23.64 $ 28.17 $ 63.26 $ 279.9 $1316 $7308 "1387 $ 272.2 $ 228.7 $ 52.94 $ 25
26 47.84 $ 28.39 $ 27.11 $ 31.01 $ 63.32 $ 328.7 $1578 $5971 "1270 $ 266.7 $ 218.0 $ 51.15 $ 26
27 46.32 $ 28.48 $ 28.14 $ 30.81 $ 84.11 $ 379.6 $1844 $4786 "1149 $ 274.8 $ 203.4 $ 49.59 $ 27
28 44.74 $ 28.83 $ 27.07 $ 30.51 $ 105.4 $ 396.2 $2054 "4066 "1041 $ 262.8 $ 192.1 $ 47.49 $ 28
29 43.81 $ 26.40 $ 31.67 $ 143.2 $ 390.2 $2221 "3532 " 961.9 $ 265.8 $ 182.5 $ 46.00 $ 29
30 43.37 $ 26.01 $ 30.80 $ 162.1 $ 400.1 $2512 "3069 " 897.7 $ 288.6 $ 173.4 $ 44.84 $ 30
31 43.03 $ 25.54 $ 142.0 $ 2769 "2673 " 295.2 $ 43.25 $ 31
Mean 58.31 $ 35.25 $ 26.51 $ 28.45 $ 53.64 $ 212.8 $ 810.4 $4857 "1541 $ 426.2 $ 283.3 $ 87.73 $
Median 58.96 $ 35.77 $ 26.19 $ 28.50 $ 39.42 $ 160.7 $ 428.3 $4786 "1544 $ 396.2 $ 294.3 $ 83.36 $
Maximum 77.34 $ 42.40 $ 30.55 $ 31.67 $ 162.1 $ 400.1 $2769 $7308 "2361 $ 823.0 $ 365.8 $ 163.9 $
Minimum 43.03 $ 28.39 $ 23.64 $ 25.29 $ 28.42 $ 125.5 $ 317.2 $2673 " 897.7 $ 262.8 $ 173.4 $ 43.25 $
Total 1808 $ 987.1$ 822.0$ 853.4$ 1663 $ 6383 $ 25123 $150559 " 46239 $ 13212 $ 8500 $ 2720 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 709.2 $ " ... Relative Uncertainty +/-10%
Ann. Median 133.1 $ $ ... Relative Uncertainty +/-20%
Annual Total 258869 $
Maximum Minimum
Daily 7308 $ 23.64 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 41.25 $ 20.18 $ 15.89 $ 15.98 $ 24.91 $ 30.56 $ 361.1 $ 845.9 "1111 " 766.4 " 112.0 $ 47.05 $ 1
2 40.07 $ 19.93 $ 15.86 $ 15.88 $ 24.47 $ 30.16 $ 352.3 $ 892.3 "1048 " 729.6 " 107.9 $ 46.48 $ 2
3 38.81 $ 19.79 $ 16.41 $ 15.93 $ 24.13 $ 29.29 $ 363.5 $1627 "1035 " 718.8 " 103.7 $ 44.60 $ 3
4 37.81 $ 19.69 $ 16.26 $ 15.82 $ 23.65 $ 31.72 $ 372.6 $2617 "1067 " 680.1 " 98.59 $ 42.76 $ 4
5 36.35 $ 19.48 $ 15.98 $ 16.06 $ 22.97 $ 42.31 $ 397.7 $2751 "1089 " 619.1 " 94.00 $ 40.61 $ 5
6 34.90 $ 19.20 $ 16.06 $ 16.27 $ 22.01 $ 58.59 $ 420.0 $3137 "1082 " 571.4 " 88.86 $ 38.68 $ 6
7 33.28 $ 19.10 $ 15.95 $ 16.15 $ 21.94 $ 65.92 $ 416.3 $3558 "1096 " 528.0 $ 84.38 $ 37.54 $ 7
8 32.31 $ 19.09 $ 15.98 $ 16.07 $ 22.05 $ 70.04 $ 441.8 $3666 "1089 " 481.9 $ 80.65 $ 35.65 $ 8
9 31.88 $ 18.80 $ 16.19 $ 16.09 $ 22.00 $ 84.99 $ 441.4 $3361 "1126 " 445.6 $ 77.21 $ 32.43 $ 9
10 32.09 $ 18.68 $ 16.15 $ 16.93 $ 23.84 $ 91.27 $ 444.3 $3027 "1120 " 414.8 $ 73.14 $ 30.09 $ 10
11 31.89 $ 18.37 $ 16.10 $ 18.24 $ 23.34 $ 89.32 $ 482.0 $2750 "1062 " 379.3 $ 69.52 $ 28.63 $ 11
12 30.23 $ 17.99 $ 16.16 $ 19.43 $ 22.83 $ 122.2 $ 518.0 $2539 "1005 " 347.9 $ 65.93 $ 27.83 $ 12
13 28.91 $ 17.99 $ 16.52 $ 20.49 $ 23.42 $ 183.7 $ 536.8 "2460 "1159 " 321.6 $ 64.68 $ 27.32 $ 13
14 28.27 $ 17.83 $ 16.53 $ 21.99 $ 22.72 $ 205.9 $ 540.8 "2524 "2311 " 298.7 $ 64.52 $ 26.08 $ 14
15 27.76 $ 17.73 $ 16.61 $ 21.55 $ 22.46 $ 226.8 $ 557.8 "2655 "2882 " 278.8 $ 62.68 $ 24.98 $ 15
16 27.13 $ 17.47 $ 17.36 $ 21.95 $ 24.66 $ 263.5 $ 577.7 "2707 "2742 " 260.9 $ 60.20 $ 24.26 $ 16
17 26.28 $ 17.45 $ 17.75 $ 22.26 $ 29.31 $ 283.9 $ 594.6 "2616 "2376 " 243.5 $ 58.00 $ 23.58 $ 17
18 25.75 $ 17.40 $ 17.60 $ 21.37 $ 29.91 $ 327.7 $ 569.6 "2394 "2217 " 229.5 $ 56.63 $ 22.76 $ 18
19 25.69 $ 17.36 $ 17.32 $ 20.74 $ 29.66 $ 355.9 $ [ ] 2264 "2310 " 214.4 $ 55.41 $ 22.16 $ 19
20 25.70 $ 17.38 $ 17.36 $ 20.21 $ 29.41 $ 362.5 $ 590.5 "2342 "2228 " 201.5 $ 54.24 $ 21.39 $ 20
21 25.75 $ 17.20 $ 17.38 $ 19.90 $ 29.09 $ 358.4 $ 671.1 "2369 "2109 " 191.2 $ 67.47 $ 20.97 $ 21
22 25.51 $ 16.85 $ 17.32 $ 19.59 $ 29.15 $ 358.0 $ 732.9 "2282 "2081 " 181.8 $ 95.47 $ 20.58 $ 22
23 24.73 $ 16.64 $ 17.15 $ 19.29 $ 30.04 $ 356.6 $ 797.2 "2167 "1910 " 173.2 $ 90.14 $ 20.06 $ 23
24 23.84 $ 16.18 $ 17.34 $ 24.40 $ 32.39 $ 343.2 $ 764.1 "2062 "1646 " 163.5 $ 79.97 $ 19.58 $ 24
25 23.28 $ 16.18 $ 17.39 $ 31.58 $ 30.65 $ 361.9 $ 833.1 "1902 "1422 " 154.4 $ 70.97 $ 19.12 $ 25
26 23.06 $ 16.19 $ 17.62 $ 31.47 $ 28.94 $ 376.8 $ 856.9 "1723 "1257 " 146.5 $ 62.53 $ 18.55 $ 26
27 22.67 $ 16.12 $ 17.29 $ 28.59 $ 28.27 $ 413.8 $ 876.0 "1559 "1116 " 138.8 $ 56.10 $ 18.07 $ 27
28 21.98 $ 16.05 $ 16.93 $ 26.96 $ 28.28 $ 393.5 $ 891.0 "1437 "1000 " 131.2 $ 52.34 $ 17.61 $ 28
29 21.60 $ 16.49 $ 25.82 $ 28.09 $ 366.0 $ 897.5 "1352 " 903.7 " 126.0 $ 48.66 $ 16.81 $ 29
30 21.16 $ 16.30 $ 25.18 $ 28.17 $ 363.2 $ 878.7 "1280 " 826.5 " 121.1 $ 46.09 $ 16.55 $ 30
31 20.61 $ 16.11 $ 29.56 $ 870.8 "1191 " 116.5 $ 16.40 $ 31
Mean 28.73 $ 17.94 $ 16.69 $ 20.74 $ 26.20 $ 221.6 $ 601.6 $2260 "1514 " 334.7 $ 73.40 $ 27.39 $
Median 27.13 $ 17.78 $ 16.52 $ 20.06 $ 24.91 $ 245.1 $ 563.7 $2369 "1123 " 260.9 $ 68.49 $ 24.26 $
Maximum 41.25 $ 20.18 $ 17.75 $ 31.58 $ 32.39 $ 413.8 $ 897.5 $3666 "2882 " 766.4 $ 112.0 $ 47.05 $
Minimum 20.61 $ 16.05 $ 15.86 $ 15.82 $ 21.94 $ 29.29 $ 352.3 $ 845.9 " 826.5 " 116.5 $ 46.09 $ 16.40 $
Total 890.5 $ 502.3 $ 517.4 $ 622.2 $ 812.3 $ 6648 $18048 $70056 "45425 "10376 $ 2202 $ 849.2 $
Missing Days 0 0 0 0 0 0 1 0 0 0 0 0
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 431.2 $ " ... Relative Uncertainty +/-10%
Ann. Median 41.78 $ $ ... Relative Uncertainty +/-20%
Annual Total 156949 $ [ ... Not Available
Missing Days 1
Maximum Minimum
Daily 3666 $ 15.82 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 16.21 $ 12.39 $ 11.59 $ 11.50 $ 12.04 $ 21.73 $ 175.7 $2825 "6142 " 474.7 $ 169.0 $ 179.8 $ 1
2 16.07 $ 12.54 $ 11.64 $ 11.38 $ 13.59 $ 34.91 $ 178.4 $2896 "5189 " 477.1 $ 159.8 $ 162.0 $ 2
3 16.08 $ 12.81 $ 11.87 $ 11.31 $ 15.11 $ 33.00 $ 174.6 $2819 "4273 " 518.5 $ 148.6 $ 143.6 $ 3
4 15.85 $ 12.91 $ 12.14 $ 11.39 $ 16.00 $ 35.94 $ 172.1 $2738 "3646 " 605.5 " 139.3 $ 127.5 $ 4
5 15.26 $ 13.29 $ 12.04 $ 11.50 $ 15.79 $ 74.74 $ 166.7 $2586 "3265 " 636.5 " 133.3 $ 117.3 $ 5
6 14.71 $ 13.40 $ 11.83 $ 11.64 $ 16.29 $ 64.36 $ 162.6 $2706 "3086 " 631.0 " 127.7 $ 108.4 $ 6
7 14.57 $ 13.36 $ 11.93 $ 11.72 $ 16.41 $ 49.76 $ 168.3 $2822 "2927 " 622.8 " 121.4 $ 99.39 $ 7
8 14.61 $ 13.17 $ 12.03 $ 11.57 $ 17.10 $ 40.02 $ 172.7 $3006 "2704 " 584.0 " 116.2 $ 90.87 $ 8
9 14.42 $ 12.95 $ 11.83 $ 11.58 $ 17.24 $ 39.38 $ 181.1 $2906 "2449 " 541.5 $ 110.7 $ 84.75 $ 9
10 14.54 $ 12.74 $ 11.55 $ 11.67 $ 22.82 $ 36.88 $ 183.8 $2640 "2231 " 509.7 $ 106.3 $ 76.24 $ 10
11 14.67 $ 12.41 $ 11.54 $ 11.79 $ 25.38 $ 38.54 $ 179.8 $2311 "2039 " 470.6 $ 104.4 $ 71.14 $ 11
12 14.53 $ 12.18 $ 11.62 $ 11.85 $ 21.83 $ 38.54 $ 193.0 $2110 "1874 " 433.3 $ 100.6 $ 64.93 $ 12
13 14.58 $ 11.87 $ 11.77 $ 11.97 $ 19.76 $ 35.43 $ 196.0 $2052 "1733 " 398.3 $ 96.85 $ 62.97 $ 13
14 14.95 $ 11.83 $ 11.92 $ 11.90 $ 18.24 $ 34.91 $ 212.3 $2155 "1629 " 371.5 $ 94.00 $ 61.67 $ 14
15 15.00 $ 12.00 $ 11.98 $ 12.08 $ 17.85 $ 34.66 $ 237.7 $2333 "1531 " 351.1 $ 89.69 $ 57.33 $ 15
16 14.36 $ 12.06 $ 12.06 $ 12.13 $ 18.51 $ 33.24 $ 231.8 $2386 "1406 " 330.5 $ 84.95 $ 53.28 $ 16
17 13.72 $ 11.99 $ 12.00 $ 12.05 $ 18.79 $ 93.07 $ 235.2 $2831 "1287 " 315.1 $ 81.09 $ 48.90 $ 17
18 13.27 $ 12.11 $ 12.21 $ 11.83 $ 18.39 $ 118.8 $ 274.0 $5680 "1170 " 299.7 $ 77.94 $ 44.33 $ 18
19 13.32 $ 12.02 $ 11.96 $ 11.55 $ 17.65 $ 119.9 $ 307.8 $8688 "1063 " 289.3 $ 78.59 $ 42.29 $ 19
20 13.23 $ 12.05 $ 11.93 $ 11.65 $ 16.67 $ 117.8 $ 354.6 $8361 " 974.5 " 285.1 $ 86.05 $ 40.17 $ 20
21 13.03 $ 11.98 $ 11.75 $ 11.86 $ 16.03 $ 114.5 $ 359.7 $6706 " 896.6 " 297.0 $ 91.76 $ 38.32 $ 21
22 12.66 $ 12.43 $ 11.71 $ 11.95 $ 15.68 $ 208.4 $ 392.5 $5248 " 834.7 " 303.2 $ 100.1 $ 36.68 $ 22
23 12.56 $ 13.08 $ 11.51 $ 11.92 $ 15.55 $ 255.0 $ 429.2 $4880 " 780.1 " 306.0 $ 112.2 $ 35.00 $ 23
24 12.44 $ 12.47 $ 11.50 $ 12.06 $ 15.22 $ 250.6 $ 495.1 $5036 " 725.7 " 282.1 $ 274.5 $ 33.33 $ 24
25 12.22 $ 11.98 $ 11.49 $ 11.93 $ 14.86 $ 238.4 $ 583.0 "5694 " 670.5 " 265.2 $ 331.0 $ 32.09 $ 25
26 12.30 $ 11.92 $ 11.52 $ 11.96 $ 14.42 $ 223.4 $ 628.3 "6330 " 619.3 " 251.4 $ 266.7 $ 30.75 $ 26
27 12.49 $ 11.84 $ 11.51 $ 12.04 $ 14.89 $ 215.0 $ 668.2 "6319 " 584.8 " 234.9 $ 250.9 $ 29.77 $ 27
28 12.82 $ 11.71 $ 11.52 $ 12.11 $ 15.33 $ 204.3 $ 699.4 "6108 " 557.7 " 219.7 $ 232.1 $ 28.83 $ 28
29 12.72 $ 11.66 $ 11.49 $ 12.19 $ 17.89 $ 192.5 $1125 "6132 " 536.2 $ 204.7 $ 219.4 $ 28.07 $ 29
30 12.42 $ 11.27 $ 12.06 $ 19.32 $ 182.4 $1769 "6347 " 503.9 $ 190.4 $ 201.0 $ 27.32 $ 30
31 12.23 $ 11.39 $ 20.11 $ 2370 "6533 " 179.0 $ 26.70 $ 31
Mean 13.93 $ 12.38 $ 11.75 $ 11.80 $ 17.25 $ 106.0 $ 441.2 $4264 "1911 $ 383.2 $ 143.5 $ 67.22 $
Median 14.36 $ 12.18 $ 11.75 $ 11.86 $ 16.67 $ 69.55 $ 235.2 $2906 "1469 $ 330.5 $ 114.2 $ 53.28 $
Maximum 16.21 $ 13.40 $ 12.21 $ 12.19 $ 25.38 $ 255.0 $2370 $8688 "6142 $ 636.5 $ 331.0 $ 179.8 $
Minimum 12.22 $ 11.66 $ 11.27 $ 11.31 $ 12.04 $ 21.73 $ 162.6 $2052 " 503.9 $ 179.0 $ 77.94 $ 26.70 $
Total 431.8$ 359.1$ 364.1$ 354.1$ 534.8$ 3180 $ 13677 $132184 " 57327 $ 11880 $ 4306 $ 2084 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 619.4 $ " ... Relative Uncertainty +/-10%
Ann. Median 59.50 $ $ ... Relative Uncertainty +/-20%
Annual Total 226683 $
Maximum Minimum
Daily 8688 $ 11.27 $
Department of Water and Environmental Regulation HYDAY V146 Output 20/06/2025
Site 609041 Blackwood River - Gingilup 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 26.09 $ 16.15 $ 13.95 $ 13.92 $ 18.40 $ 35.73 $ [ ] [ ] [ ] [ ] [ ] [ ] 1
2 25.42 $ 16.06 $ 14.07 $ 13.64 $ 19.36 $ 33.59 $ [ ] [ ] [ ] [ ] [ ] [ ] 2
3 24.80 $ 15.70 $ 13.64 $ 13.63 $ 20.46 $ 41.44 $ [ ] [ ] [ ] [ ] [ ] [ ] 3
4 24.19 $ 15.45 $ 13.57 $ 20.02 $ 22.75 $ 47.59 $ [ ] [ ] [ ] [ ] [ ] [ ] 4
5 23.45 $ 15.25 $ 13.40 $ 25.46 $ 23.13 $ 53.22 $ [ ] [ ] [ ] [ ] [ ] [ ] 5
6 23.16 $ 14.83 $ 13.56 $ 26.64 $ 23.15 $ 80.26 $ [ ] [ ] [ ] [ ] [ ] [ ] 6
7 22.49 $ 14.32 $ 13.58 $ 24.74 $ 25.14 $ 111.1 $ [ ] [ ] [ ] [ ] [ ] [ ] 7
8 21.75 $ 13.80 $ 13.59 $ 23.84 $ 26.53 $ 105.7 $ [ ] [ ] [ ] [ ] [ ] [ ] 8
9 21.14 $ 13.88 $ 13.82 $ 23.80 $ 25.34 $ 96.75 $ [ ] [ ] [ ] [ ] [ ] [ ] 9
10 20.60 $ 14.33 $ 13.77 $ 23.04 $ 24.18 $ 127.2 $ [ ] [ ] [ ] [ ] [ ] [ ] 10
11 20.13 $ 14.54 $ 13.88 $ 21.85 $ 22.98 $ 188.5 $ [ ] [ ] [ ] [ ] [ ] [ ] 11
12 19.45 $ 14.64 $ 14.01 $ 20.76 $ 22.01 $ 306.3 $ [ ] [ ] [ ] [ ] [ ] [ ] 12
13 19.70 $ 14.62 $ 14.74 $ 19.94 $ 21.40 $ 306.0 $ [ ] [ ] [ ] [ ] [ ] [ ] 13
14 19.46 $ 14.43 $ 17.60 $ 19.53 $ 21.21 $ 268.8 $ [ ] [ ] [ ] [ ] [ ] [ ] 14
15 18.89 $ 15.30 $ 21.11 $ 19.03 $ 20.97 $ 248.1 $ [ ] [ ] [ ] [ ] [ ] [ ] 15
16 18.66 $ 14.84 $ 20.97 $ 18.61 $ 20.71 $ 231.4 $ [ ] [ ] [ ] [ ] [ ] [ ] 16
17 18.76 $ 14.24 $ 18.55 $ 18.90 $ 20.46 $ 216.0 $ [ ] [ ] [ ] [ ] [ ] [ ] 17
18 18.45 $ 13.82 $ 17.82 $ 20.50 $ 20.17 $ 227.8 $ [ ] [ ] [ ] [ ] [ ] [ ] 18
19 18.20 $ 13.59 $ 17.69 $ 19.46 $ 20.20 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 19
20 18.15 $ 13.79 $ 17.11 $ 18.55 $ 20.22 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 20
21 18.07 $ 14.28 $ 16.65 $ 17.80 $ 20.14 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 21
22 18.65 $ 14.42 $ 16.29 $ 17.71 $ 20.33 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 22
23 18.68 $ 14.14 $ 16.03 $ 17.11 $ 22.10 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 23
24 18.69 $ 13.85 $ 15.77 $ 18.51 $ 23.03 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 24
25 18.63 $ 13.79 $ 15.42 $ 18.67 $ 24.11 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 25
26 17.94 $ 13.92 $ 15.23 $ 18.52 $ 23.82 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 26
27 17.39 $ 14.36 $ 15.03 $ 18.78 $ 23.27 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 27
28 17.15 $ 14.21 $ 14.69 $ 19.06 $ 25.12 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 28
29 16.80 $ 14.60 $ 18.97 $ 28.27 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 29
30 16.52 $ 14.38 $ 18.60 $ 32.08 $ [ ] [ ] [ ] [ ] [ ] [ ] [ ] 30
31 16.43 $ 14.16 $ 36.07 $ [ ] [ ] [ ] [ ] 31
Mean 19.93 $ 14.52 $ 15.44 $ 19.65 $ 23.13 $ 151.4 $ [ ] [ ] [ ] [ ] [ ] [ ]
Median 18.76 $ 14.34 $ 14.69 $ 19.00 $ 22.75 $ 119.1 $ [ ] [ ] [ ] [ ] [ ] [ ]
Maximum 26.09 $ 16.15 $ 21.11 $ 26.64 $ 36.07 $ 306.3 $ [ ] [ ] [ ] [ ] [ ] [ ]
Minimum 16.43 $ 13.59 $ 13.40 $ 13.63 $ 18.40 $ 33.59 $ [ ] [ ] [ ] [ ] [ ] [ ]
Total 617.9 $ 406.5 $ 478.7 $ 589.6 $ 717.1 $2725 $ [ ] [ ] [ ] [ ] [ ] [ ]
Missing Days 0 0 0 0 0 12 31 31 30 31 30 31
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 32.75 $ $ ... Relative Uncertainty +/-20%
Ann. Median 18.69 $ [ ... Not Available
Annual Total 5535 $
Missing Days 196
Maximum Minimum
Daily 306.3 $ 13.40 $