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Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge Year 1997
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 1
2 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 2
3 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 3
4 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 4
5 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 5
6 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 6
7 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 0.00& 7
8 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 513.6 & 8
9 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 2585 $ 9
10 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 3676 $ 10
11 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 3291 $ 11
12 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 6609 $ 12
13 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 5416 $ 13
14 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 4629 $ 14
15 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 3701 $ 15
16 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 3475 $ 16
17 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 2644 $ 17
18 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 2421 $ 18
19 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 3254 $ 19
20 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00&12222 $ 20
21 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 5537 $ 21
22 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 9500 $ 22
23 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 9982 $ 23
24 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 5387 $ 24
25 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 3825 $ 25
26 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 2944 $ 26
27 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 2307 $ 27
28 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 1813 $ 28
29 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 1519 $ 29
30 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00& 1306 $ 30
31 [ ] [ ] [ ] [ ] [ ] 0.00& 1034 & 31
Mean [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.000& 0.000&3213 &
Median [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.000& 0.000&2644 &
Maximum [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00&12222 &
Minimum [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.000& 0.000& 0.000&
Total [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 0.00& 0.00&99590 &
Missing Days 31 28 31 30 31 30 31 31 30 6 0 0
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1158 & $ ... Relative Uncertainty +/-20%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 99590 & [ ... Not Available
Missing Days 279
Maximum Minimum
Daily 12222 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge Year 1998
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 661.9& 1334 & 237.1& 39.3& 79.9& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 6824 $ 1
2 386.4& 805.0& 224.0& 372.9& 64.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 4215 $ 2
3 210.4& 405.2& 207.1& 334.5& 50.8& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2579 $ 3
4 137.7& 218.5& 192.9& 245.2& 40.9& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1689 $ 4
5 155.1& 516.3& 183.5& 178.0& 34.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 11512 $ 5
6 382.5& 17953 $ 174.4& 132.0& 23.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 9140 $ 6
7 151.8& 14923 $ 168.9& 93.9& 16.1& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 6596 $ 7
8 79.9& 8282 $ 161.4& 68.4& 13.3& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 4137 $ 8
9 69.8& 17003 $ 159.4& 52.6& 11.3& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2344 $ 9
10 65.3& 8054 $ 156.0& 39.0& 9.5& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1648 $ 10
11 233.6& 9292 $ 156.0& 30.6& 7.9& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1361 $ 11
12 1286 & 23005 $ 158.6& 24.3& 6.5& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1206 & 12
13 2757 $ 7734 $ 165.8& 19.7& 5.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1069 & 13
14 2723 $ 4982 $ 174.8& 12.4& 4.1& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1068 & 14
15 3586 $ 3494 $ 250.9& 8.4& 3.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1790 $ 15
16 4729 $ 2600 $ 1281 & 5243 & 2.4& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1467 $ 16
17 3338 $ 1879 $ 612.1& 3571 $ 1.7& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1836 $ 17
18 5162 $ 1385 $ 256.5& 1654 $ 1.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1642 $ 18
19 11643 $ 1037 & 178.8& 813.6& 0.8& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 4348 $ 19
20 9059 $ 690.4& 144.6& 276.7& 0.4& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 22631 $ 20
21 5323 $ 528.9& 116.0& 108.2& 0.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 90625 $ 21
22 8876 $ 610.5& 92.1& 38.9& 0.1& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0&129346 $ 22
23 7093 $ 870.5& 80.4& 849.8& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 18621 $ 23
24 5497 $ 542.0& 88.1& 968.5& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 8546 $ 24
25 3712 $ 422.6& 668.9& 468.8& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 6938 $ 25
26 7282 $ 347.4& 79.4& 264.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2564 & 9229 $ 26
27 6083 $ 298.9& 61.8& 169.9& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 16825 $ 30231 $ 27
28 3640 $ 260.5& 53.3& 134.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 13967 $ 40188 $ 28
29 2471 $ 47.8& 111.1& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 17570 $ 16491 $ 29
30 2796 $ 43.2& 89.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 14402 $ 12629 $ 30
31 1901 $ 39.7& 0.0& 0.0& 0.0& 0.0& 7802 $ 31
Mean 3274 & 4624 & 213.4 & 547.1 & 12.17& 0.00& 0.00& 0.00& 0.00& 0.00& 2178 &14831 &
Median 2757 &1186 & 161.4 & 133.1 & 2.386& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&6596 &
Maximum 11643 & 23005 & 1281 & 5243 & 79.9& 0.0& 0.0& 0.0& 0.0& 0.0& 17570 &129346 &
Minimum 65.35 & 218.5 & 39.67 & 8.420& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&1068 &
Total 101491 &129475 & 6615 & 16413 & 377.3& 0.0& 0.0& 0.0& 0.0& 0.0& 65328 &459752 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2135 & $ ... Relative Uncertainty +/-20%
Ann. Median 0.000& & ... Relative Uncertainty +/-30%
Annual Total 779452 &
Maximum Minimum
Daily 129346 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge Year 1999
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 5904 $ 36125 $ 4267 $ 1243 & 132.1& 65.4& 45.2& 31.8& 23.3& 16.1& 5956 $ 2249 $ 1
2 4573 $ 67711 $ 4970 $ 1033 & 126.8& 64.6& 44.9& 31.4& 23.1& 15.8& 3490 $ 1529 $ 2
3 3670 $ 39265 # 3559 $ 830.1& 121.7& 63.8& 44.6& 31.0& 22.9& 15.5& 4162 $ 1125 & 3
4 3047 $ 20823 $ 2798 $ 833.9& 116.6& 63.0& 44.3& 30.6& 22.7& 15.2& 3706 $ 709.0& 4
5 20099 $ 12692 $ 2502 $ 1408 & 111.7& 62.2& 43.9& 30.3& 22.6& 14.9& 1855 $ 471.8& 5
6 58229 $ 11321 $ 2221 $ 1200 & 107.3& 61.4& 43.2& 29.9& 22.4& 14.6& 1375 $ 362.1& 6
7 41157 $ 24886 $ 2294 $ 711.0& 103.9& 60.6& 42.4& 29.5& 22.2& 14.4& 1039 & 309.6& 7
8 47154 # 14911 $ 3131 $ 611.3& 100.5& 59.8& 41.6& 29.2& 22.2& 14.1& 706.8& 282.7& 8
9 31581 $ 20216 $ 7005 $ 1478 & 97.1& 59.0& 41.0& 28.8& 21.7& 13.8& 515.0& 439.6& 9
10 49328 # 10819 $ 6319 $ 792.3& 93.8& 58.2& 40.3& 28.5& 20.8& 13.6& 376.8& 528.2& 10
11 22218 $ 8747 $ 5251 $ 554.5& 90.8& 57.4& 39.7& 28.1& 20.5& 13.3& 257.9& 358.1& 11
12 10945 $ 6665 $ 3808 $ 446.6& 89.1& 56.6& 39.0& 27.8& 20.3& 13.1& 178.8& 414.8& 12
13 7710 $ 5731 $ 2653 $ 363.0& 87.8& 55.8& 38.4& 27.4& 20.1& 12.8& 128.3& 4375 $ 13
14 6630 $ 14870 $ 2032 $ 297.5& 86.5& 55.0& 37.7& 27.1& 20.0& 12.6& 98.7& 7959 $ 14
15 29298 $ 49119 $ 1627 $ 266.9& 85.2& 54.2& 37.1& 26.7& 19.8& 12.3& 78.6& 9157 $ 15
16 114079 $ 54469 $ 1353 $ 247.1& 83.9& 53.5& 36.5& 26.4& 19.6& 12.1& 64.9& 11815 $ 16
17 24559 $ 21296 $ 1076 & 232.4& 82.6& 52.9& 35.9& 26.1& 19.5& 11.8& 53.5& 13545 $ 17
18 12957 $ 10848 $ 734.5& 223.2& 81.3& 52.2& 35.3& 25.7& 19.3& 11.6& 44.2& 7576 $ 18
19 15225 $ 10602 $ 533.7& 209.5& 80.1& 51.5& 34.9& 25.4& 19.2& 11.3& 37.9& 4874 $ 19
20 25206 $ 12323 $ 411.2& 194.1& 78.9& 50.9& 34.7& 25.3& 19.2& 11.1& 32.5& 2759 $ 20
21 8721 $ 12422 $ 2254 & 190.6& 77.6& 50.2& 34.5& 25.1& 19.1& 10.9& 27.5& 18038 $ 21
22 6647 $ 9714 $ 1471 $ 185.9& 76.4& 49.5& 34.3& 25.0& 18.9& 10.6& 23.9& 20517 $ 22
23 5567 $ 8902 $ 1108 & 179.7& 75.2& 48.9& 34.1& 24.8& 18.5& 10.4& 21.3& 9083 $ 23
24 4824 $ 7684 $ 725.3& 172.0& 74.0& 48.3& 33.9& 24.6& 18.2& 10.2& 3544 & 7113 $ 24
25 4396 $ 6085 $ 466.0& 164.4& 72.8& 47.6& 33.7& 24.5& 17.9& 10.0& 15321 $ 6568 $ 25
26 4543 $ 5338 $ 1429 & 157.1& 71.6& 47.0& 33.5& 24.3& 17.6& 9.7& 5680 $ 3908 $ 26
27 4565 $ 4420 $ 1549 $ 150.5& 70.5& 46.4& 33.3& 24.1& 17.3& 9.5& 2593 $ 2474 $ 27
28 3094 $ 4357 $ 1459 $ 146.0& 69.5& 46.2& 33.1& 24.0& 17.0& 9.3& 1648 $ 4397 $ 28
29 3238 $ 2740 $ 141.8& 68.4& 45.9& 32.9& 23.8& 16.7& 9.1& 4583 $ 4464 $ 29
30 23432 $ 1718 $ 137.4& 67.4& 45.6& 32.5& 23.6& 16.4& 8.9& 3750 $ 7655 $ 30
31 50714 $ 1408 $ 66.4& 32.1& 23.5& 899.7& 9648 $ 31
Mean 21074 $18299 $ 2415 & 493.4 & 88.63& 54.46& 37.70& 26.92& 19.96& 40.91& 2045 & 5313 &
Median 10945 $11822 $ 2032 & 257.0 & 83.89& 53.89& 36.50& 26.40& 19.72& 12.30& 610.9 & 4375 &
Maximum 114079 $ 67711 $ 7005 & 1478 & 132.1& 65.4& 45.2& 31.8& 23.3& 899.7& 15321 & 20517 &
Minimum 3047 $4357 $ 411.2 & 137.4 & 66.39 & 45.58 & 32.14 & 23.46 & 16.37 & 8.891& 21.28 & 282.7 &
Total 653308 $512362 $ 74874 & 14801 & 2748 & 1634 & 1169 & 834.4& 598.8& 1268 & 61351 &164703 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4081 & # ... Relative Uncertainty +/-15%
Ann. Median 93.84 & $ ... Relative Uncertainty +/-20%
Annual Total 1489650& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 114079 & 8.891&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge Year 2000
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 13695 $ 7758 $ 47529 $ [ ] 3304 # 503.0# 207.5# 107.7$ 70.8$ 56.0$ 43.5$ 42.3$ 1
2 7208 $ 5810 $ 28702 $ [ ] 2756 # 489.1# 200.6# 105.4$ 70.3$ 55.6$ 43.3$ 42.3$ 2
3 4017 $ 4536 $173406 & [ ] 2370 # 477.8# 194.1# 103.1$ 69.8$ 55.1$ 43.3$ 42.2$ 3
4 4038 $ 3650 $ 52311 & [ ] 2163 # 462.9# 187.5# 100.9$ 69.3$ 54.6$ 43.2$ 42.2$ 4
5 4875 $ 2818 $238101 & [ ] 1906 # 451.4# 182.1# 98.8$ 68.6$ 54.2$ 43.2$ 42.1$ 5
6 7459 $ 2387 $311103 & [ ] 1662 # 439.2# 177.8# 97.2$ 68.0$ 53.7$ 43.2$ 42.1$ 6
7 5469 $ 1808 $178613 & [ ] 1480 # 427.1# 173.9# 95.7$ 67.4$ 53.3$ 43.1$ 42.1$ 7
8 5038 $ 1698 $ 69694 & [ ] 1348 # 417.6# 170.5# 93.4$ 66.8$ 52.8$ 43.1$ 42.0$ 8
9 5579 $ 1908 $ 49909 & [ ] 1219 # 409.3# 165.4# 91.7$ 66.1$ 52.4$ 43.1$ 42.0$ 9
10 3043 $ 7782 $ 41852 & [ ] 1119 # 399.2# 163.3# 90.5$ 65.6$ 51.9$ 43.0$ 122.2$ 10
11 3201 $ 32062 $ 34970 & [ ] 1053 # 387.3# 160.3# 89.3$ 65.1$ 51.5$ 43.0$ 1136 # 11
12 7958 $ 10649 $ [ ] [ ] 987.2# 376.6# 157.2# 88.2$ 64.7$ 51.0$ 43.0$ 1015 # 12
13 6462 $ 17757 $ [ ] [ ] 913.2# 366.6# 153.7# 87.1$ 64.2$ 50.7$ 42.9$ 6084 # 13
14 5610 $ 36318 # [ ] [ ] 862.0# 355.3# 151.2# 85.9$ 63.8$ 50.4$ 42.9$ 3768 # 14
15 8940 $ 24551 $ [ ] [ ] 837.8# 343.3# 149.0# 84.8$ 63.3$ 50.1$ 42.9$ 1946 # 15
16 21046 $ 25271 $ [ ] [ ] 816.3# 334.3# 146.8# 83.7$ 62.9$ 49.8$ 42.8$ 1130 # 16
17 26995 $ 17189 $ [ ] [ ] 775.9# 324.2# 144.3# 82.8$ 62.4$ 49.3$ 42.8$ 845.4# 17
18 12707 $125453 $ [ ] [ ] 747.5# 315.2# 140.8# 81.9$ 62.0$ 48.8$ 42.7$ 712.7# 18
19 23500 $ 71677 $ [ ] [ ] 726.1# 304.8# 138.9# 81.0$ 61.5$ 48.4$ 42.7$ 623.4# 19
20 11821 $ 22111 $ [ ] [ ] 705.3# 295.0# 136.7# 79.9$ 61.1$ 48.0$ 42.7$ 557.0# 20
21 6515 $ 11472 $ [ ] [ ] 687.1# 283.6# 133.8# 78.8$ 60.7$ 47.7$ 42.6$ 506.8# 21
22 5464 $ 8592 $ [ ] [ ] 670.6# 274.6# 131.2# 77.7$ 60.2$ 47.3$ 42.6$ 459.7# 22
23 5578 $ 7667 $ [ ] [ ] 654.9# 266.6# 129.4# 76.7$ 59.8$ 47.0$ 42.6$ 413.6# 23
24 5522 $ 7203 $ [ ] [ ] 640.6# 259.9# 126.9# 75.8$ 59.4$ 46.6$ 42.5$ 378.4# 24
25 6886 $ 8713 $ [ ] [ ] 624.3# 253.6# 124.3# 75.2$ 58.9$ 46.3$ 42.5$ 354.1# 25
26 42955 $ 9662 $ [ ] 5745 & 608.6# 248.9# 121.7# 74.5$ 58.4$ 45.9$ 42.5$ 343.0# 26
27 46970 $ 6790 $ [ ] 5454 & 592.6# 243.6# 119.1# 73.9$ 57.9$ 45.6$ 42.4$ 320.1# 27
28 11947 $ 26244 $ [ ] 5041 # 571.3# 238.1# 116.5# 73.2$ 57.4$ 45.2$ 42.4$ 300.4# 28
29 97203 $ 78142 $ [ ] 4560 # 551.1# 227.7# 114.4# 72.6$ 57.0$ 44.9$ 42.4$ 288.6# 29
30 30435 $ [ ] 4015 # 534.3# 216.9# 112.4# 71.9$ 56.5$ 44.5$ 42.3$ 275.2# 30
31 12455 $ [ ] 518.4# 110.2# 71.3$ 44.3$ 266.6# 31
Mean 14858 $ 20265 $111472 & 4963 & 1110 # 346.4# 149.7# 85.5$ 63.3$ 49.8$ 42.8$ 716.9$
Median 7208 $ 8713 $52311 & 5041 & 816.3 # 338.8 # 146.8 # 83.74$ 63.10$ 49.75$ 42.83$ 343.0 $
Maximum 97203 $125453 $311103 & 5745 & 3304 # 503.0# 207.5# 107.7$ 70.8$ 56.0$ 43.5$ 6084 $
Minimum 3043 $ 1698 $28702 & 4015 & 518.4 # 216.9 # 110.2 # 71.32$ 56.50$ 44.25$ 42.32$ 42.00$
Total 460591$ 587679$ 1226189& 24816& 34406# 10393# 4641# 2651$ 1900$ 1543$ 1285$ 22225$
Missing Days 0 0 20 25 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 7409 & # ... Relative Uncertainty +/-15%
Ann. Median 194.1 & $ ... Relative Uncertainty +/-20%
Annual Total 2378317& & ... Relative Uncertainty +/-30%
Missing Days 45 [ ... Not Available
Maximum Minimum
Daily 311103 & 42.00 &
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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
1 257.4# 251.2# 8892 # 5481 # 757.2# 344.3# 198.0# 155.3# 83.4$ 41.1$ 13.3$ 231.2$ 1
2 242.9# 240.7# 13431 # 4930 # 682.8# 343.6# 194.7# 152.5# 81.7$ 41.1$ 13.2$ 156.5$ 2
3 228.2# 239.1#258753 $ 4596 # 641.4# 339.9# 189.8# 149.7# 80.0$ 40.2$ 12.8$ 118.2$ 3
4 212.2# 344.0#225055 $ 4249 # 618.2# 335.6# 185.9# 146.9# 77.8$ 39.8$ 12.6$ 100.5$ 4
5 200.2# 657.1# 62296 $ 3989 # 605.3# 332.1# 182.6# 143.9# 76.4$ 39.8$ 12.1$ 83.2$ 5
6 188.6# 670.7# 37155 # 3709 # 594.3# 329.6# 179.4# 140.6# 75.2$ 39.8$ 11.5$ 98.3$ 6
7 178.3# 861.5# 26099 # 3399 # 581.6# 326.2# 177.0# 137.3# 73.9$ 39.8$ 11.4$ 75.3$ 7
8 172.5# 823.6# 17294 # 3112 # 566.3# 323.1# 174.8# 134.2# 73.0$ 39.7$ 11.4$ 74.2$ 8
9 165.8# 777.8# 15216 # 2839 # 546.3# 322.2# 172.7# 131.4# 70.8$ 39.0$ 12.1$ 312.2$ 9
10 161.5# 867.7# 13460 # 2584 # 526.9# 318.6# 171.4# 128.7# 68.4$ 37.7$ 12.8$ 173.5$ 10
11 157.5# 782.2# 13626 # 2326 # 512.1# 314.3# 170.9# 126.1# 66.9$ 34.9$ 12.9$ 569.7# 11
12 153.5# 751.2# 15110 # 2054 # 496.8# 310.0# 172.6# 123.5# 64.5$ 33.0$ 17.9$ 1973 # 12
13 149.6# 5653 # 9180 # 1879 # 482.3# 303.0# 178.6# 121.0# 63.1$ 31.4$ 60.8$ 3499 # 13
14 149.5# 56658 $ 6095 # 1773 # 465.7# 294.4# 175.2# 119.2# 61.7$ 29.5$ 50.2$ 3220 # 14
15 344.8#174074 $ 4703 # 1803 # 456.8# 286.8# 173.7# 117.5# 61.0$ 27.6$ 88.4$ 2611 # 15
16 606.9# 75512 $ 4650 # 1715 # 445.6# 282.2# 175.9# 115.9# 59.7$ 25.0$ 158.2$ 2038 # 16
17 443.3# 81564 $ 9910 # 1488 # 437.2# 276.2# 179.3# 113.6# 57.8$ 21.9$ 94.1$ 1366 # 17
18 344.7#108569 $ 34750 # 1341 # 426.5# 269.7# 182.7# 111.2# 55.8$ 20.1$ 74.5$ 1071 # 18
19 438.3#247120 $ 40899 # 1224 # 418.1# 262.5# 187.6# 109.1# 54.7$ 18.6$ 66.5$ 938.0# 19
20 682.0#335311 $ 46182 # 1121 # 407.4# 255.4# 193.7# 107.0$ 52.5$ 17.7$ 61.3$ 874.2# 20
21 789.2#196627 $ 67420 $ 1036 # 398.7# 247.0# 205.3# 105.0$ 50.1$ 17.0$ 56.8$ 852.8# 21
22 695.0# 51581 # 45346 # 967.7# 386.9# 240.6# 235.7# 102.4$ 49.0$ 16.3$ 52.9$ 859.5# 22
23 589.7# 26471 # 19627 # 921.1# 378.8# 235.3# 245.3# 100.5$ 48.2$ 15.6$ 48.7$ 825.6# 23
24 6469 # 16748 # 43001 # 877.6# 372.6# 229.5# 226.8# 97.8$ 46.8$ 15.2$ 46.1$ 872.1# 24
25 3522 # 11202 # 44886 # 834.5# 368.5# 225.6# 204.2# 95.9$ 45.9$ 14.7$ 44.3$ 829.6# 25
26 1356 # 9892 # 27527 # 791.2# 361.9# 220.1# 189.8# 93.5$ 44.1$ 14.5$ 45.4$ 788.3# 26
27 760.5# 6535 # 13736 # 758.7# 357.3# 215.3# 180.8# 91.7$ 43.7$ 14.4$ 133.2$ 743.6# 27
28 532.8# 5058 # 9573 # 727.1# 353.1# 211.7# 176.5# 89.1$ 42.6$ 14.2$ 130.6$ 706.2# 28
29 407.8# 7823 # 709.8# 349.4# 207.7# 170.7# 87.3$ 41.7$ 14.1$ 86.0$ 676.8# 29
30 316.8# 6661 # 769.1# 347.1# 201.9# 164.1# 85.3$ 41.1$ 13.7$ 240.7$ 647.4# 30
31 274.3# 6004 # 344.3# 158.5# 84.6$ 13.5$ 618.4# 31
Mean 683.6 #50566 $37237 $ 2134 # 473.8 # 280.1 # 186.3 # 116.7 $ 60.39$ 26.47$ 56.43$ 903.3 $
Median 316.8 # 6094 $15216 $ 1744 # 445.6 # 284.5 # 179.4 # 115.9 $ 60.36$ 24.95$ 47.43$ 743.6 $
Maximum 6469 #335311 $258753 $ 5481 # 757.2# 344.3# 245.3# 155.3$ 83.4$ 41.1$ 240.7$ 3499 $
Minimum 149.5 # 239.1 $4650 $ 709.8 # 344.3 # 201.9 # 158.5 # 84.59 $ 41.07 $ 13.54 $ 11.39 $ 74.23 $
Total 21191# 1415840$ 1154360$ 64006# 14687# 8404# 5774# 3618$ 1812$ 821$ 1693$ 28004$
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 7453 $ # ... Relative Uncertainty +/-15%
Ann. Median 240.7 $ $ ... Relative Uncertainty +/-20%
Annual Total 2720209$
Maximum Minimum
Daily 335311 $ 11.39 $
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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
1 590.1# 1189 # 27911 # 250.6# 79.1$ 40.7$ 16.9$ 2.3$ 0.0& 0.0& 0.0& 824.8# 1
2 562.0# 2251 # 43976 # 237.3# 75.4$ 39.7$ 16.1$ 2.1$ 0.0& 0.0& 0.0& 568.5# 2
3 8650 # 3181 # 15732 # 225.9# 72.5$ 38.8$ 15.5$ 1.9$ 0.0& 0.0& 0.0& 420.0# 3
4 3443 # 3119 # 7961 # 217.4# 69.7$ 37.8$ 15.0$ 1.8$ 0.0& 0.0& 0.0& 705.2# 4
5 4783 # 6589 # 4899 # 209.6# 66.9$ 36.9$ 14.4$ 1.6$ 0.0& 0.0& 0.0& 2844 # 5
6 4025 # 2438 # 3826 # 202.2# 64.7$ 35.9$ 13.8$ 1.4$ 0.0& 0.0& 0.0& 1103 # 6
7 3020 # 6426 # 3282 # 195.8# 62.9$ 34.9$ 13.3$ 1.2$ 0.0& 0.0& 0.0& 627.5# 7
8 2019 # 7025 # 3096 # 189.2# 61.2$ 34.0$ 12.8$ 1.1$ 0.0& 0.0& 0.0& 464.5# 8
9 1221 # 16877 # 2486 # 181.7# 59.8$ 33.4$ 12.2$ 0.8$ 0.0& 0.0& 0.0& 403.2# 9
10 800.5# 10718 # 2100 # 174.4# 58.5$ 32.7$ 11.7$ 0.7$ 0.0& 0.0& 0.0& 415.5# 10
11 665.5# 5844 # 1954 # 168.8# 57.3$ 32.0$ 11.2$ 0.5& 0.0& 0.0& 0.0& 393.4# 11
12 1767 # 3811 # 1716 # 161.9# 56.3$ 31.4$ 10.7$ 0.4& 0.0& 0.0& 0.0& 693.4# 12
13 1777 # 16118 # 1431 # 154.6# 55.3$ 30.8$ 10.0$ 0.3& 0.0& 0.0& 0.0& 535.5# 13
14 1139 # 12138 # 1149 # 148.7# 54.4$ 30.1$ 9.7$ 0.2& 0.0& 0.0& 0.0& 486.5# 14
15 830.8# 4993 # 995.5# 143.2# 53.6$ 29.4$ 9.2$ 0.1& 0.0& 0.0& 0.0& 413.7# 15
16 706.2# 4552 # 901.5# 137.2# 52.7$ 28.4$ 8.8$ 0.1& 0.0& 0.0& 0.0& 365.7# 16
17 628.4# 5118 # 824.9# 132.7# 51.9$ 27.6$ 8.4$ 0.0& 0.0& 0.0& 0.0& 326.0# 17
18 585.3# 10502 # 764.3# 128.9# 51.0$ 26.7$ 8.0$ 0.0& 0.0& 0.0& 0.0& 296.6# 18
19 556.8# 37026 # 689.3# 124.8# 50.2$ 26.0$ 7.4$ 0.0& 0.0& 0.0& 0.0& 278.3# 19
20 535.8# 12896 # 620.0# 121.3# 49.4$ 25.4$ 6.9$ 0.0& 0.0& 0.0& 0.0& 262.7# 20
21 524.8# 99065 $ 557.6# 118.2# 48.6$ 24.5$ 6.4$ 0.0& 0.0& 0.0& 0.0& 260.4# 21
22 625.9#299580 $ 504.5# 114.3# 48.0$ 23.8$ 5.6$ 0.0& 0.0& 0.0& 0.0& 342.9# 22
23 847.0#299079 $ 463.2# 110.4# 47.5$ 23.1$ 5.1$ 0.0& 0.0& 0.0& 0.0& 357.9# 23
24 812.9# 73467 $ 422.9# 106.5$ 47.0$ 22.2$ 4.7$ 0.0& 0.0& 0.0& 0.0& 651.5# 24
25 848.8# 35218 # 384.0# 102.2$ 46.5$ 21.4$ 4.3$ 0.0& 0.0& 0.0& 0.0& 3457 # 25
26 2463 # 27355 # 355.1# 97.9$ 45.9$ 20.7$ 4.0$ 0.0& 0.0& 0.0& 0.0& 2594 # 26
27 5406 # 26031 # 332.6# 93.7$ 45.3$ 19.9$ 3.7$ 0.0& 0.0& 0.0& 74.3& 1450 # 27
28 5283 # 15932 # 315.0# 89.7$ 44.6$ 19.2$ 3.4$ 0.0& 0.0& 0.0& 6176 & 1024 # 28
29 2705 # 299.5# 85.8$ 43.7$ 18.6$ 3.2$ 0.0& 0.0& 0.0& 4455 # 835.0# 29
30 1849 # 284.0# 82.7$ 42.7$ 17.8$ 2.9$ 0.0& 0.0& 0.0& 1623 # 710.9# 30
31 2126 # 265.9# 41.7$ 2.5$ 0.0& 0.0& 631.9# 31
Mean 1993 #37448 $ 4210 # 150.2 $ 54.97$ 28.79$ 8.96$ 0.54& 0.00& 0.00& 410.9 & 798.2 #
Median 1139 #10610 $ 901.5 # 140.2 $ 52.72$ 28.89$ 8.78$ 0.07& 0.00& 0.00& 0.00& 535.5 #
Maximum 8650 #299580 $ 43976 # 250.6$ 79.1$ 40.7$ 16.9$ 2.3& 0.0& 0.0& 6176 & 3457 #
Minimum 524.8 #1189 $ 265.9 # 82.74 $ 41.66 $ 17.79 $ 2.519$ 0.000& 0.000& 0.000& 0.000& 260.4 #
Total 61796# 1048540$ 130499# 4507$ 1704$ 864$ 278$ 17& 0& 0& 12328& 24744#
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3521 & # ... Relative Uncertainty +/-15%
Ann. Median 44.57 & $ ... Relative Uncertainty +/-20%
Annual Total 1285277& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 299580 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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
1 558.6# 7411 # 35527 # 443.7# 305.4# 7.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1
2 501.1# 5652 # 14478 # 431.2# 277.5# 5.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2
3 486.4# 3516 # 7577 # 422.4# 243.3# 4.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 3
4 449.9# 1893 # 5469 # 414.6# 220.4# 3.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 4
5 401.4# 1053 # 4605 # 406.9# 201.7# 2.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 5
6 370.3# 728.7# 3962 # 399.2# 186.2# 2.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 6
7 340.7# 687.5# 3613 # 391.8# 175.3# 1.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 7
8 324.9# 544.4# 3229 # 385.2# 164.4# 0.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 8
9 338.4# 525.2# 2922 # 379.2# 152.9# 0.4& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 9
10 321.8# 461.4# 2503 # 374.2# 138.2# 0.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 10
11 302.4# 379.3# 2240 # 370.2# 124.2# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 11
12 283.4# 418.7# 1974 # 366.7# 111.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 12
13 266.5# 387.5# 1694 # 365.2# 100.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 13
14 249.3# 274.0# 1438 # 365.2# 90.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 14
15 234.8# 230.4# 1246 # 380.2# 82.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 15
16 224.9# 207.3# 1107 # 824.7# 74.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.3& 16
17 220.1# 201.3# 993.9# 625.1# 65.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 3.8& 17
18 217.6# 357.4# 896.0# 567.4# 57.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 274.7& 18
19 215.5# 296.8# 830.5# 774.1# 50.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 731.3$ 19
20 213.3# 231.4# 774.1# 716.9# 44.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 3160 $ 20
21 235.3# 183.1# 719.6# 665.7# 39.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2982 $ 21
22 342.6# 29050 $ 674.9# 619.4# 35.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2289 $ 22
23 31514 #107968 $ 630.2# 575.0# 31.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1624 $ 23
24 30923 # 24931 # 596.7# 531.1# 27.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1440 $ 24
25 20358 # 13320 # 567.2# 485.8# 22.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1278 $ 25
26 26308 # 52237 $ 544.2# 445.2# 19.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1145 $ 26
27 7071 #169494 $ 522.4# 409.6# 17.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1092 $ 27
28 4513 #107629 $ 503.1# 379.1# 14.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 902.1$ 28
29 3817 # 488.3# 351.9# 12.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 730.7$ 29
30 4354 # 473.8# 325.7# 11.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 609.0$ 30
31 13759 # 458.2# 9.3$ 0.0& 0.0& 0.0& 542.9$ 31
Mean 4830 #18938 $ 3331 # 473.1 # 100.3 $ 0.98& 0.00& 0.00& 0.00& 0.00& 0.00& 606.6 &
Median 342.6 # 615.9 $1107 # 412.1 # 74.27 $ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.329&
Maximum 31514 #169494 $ 35527 # 824.7# 305.4$ 7.6& 0.0& 0.0& 0.0& 0.0& 0.0& 3160 &
Minimum 213.3 # 183.1 $ 458.2 # 325.7 # 9.293$ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 149716 #530267 $103255 # 14193 # 3109 $ 29.4& 0.0& 0.0& 0.0& 0.0& 0.0& 18806 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2245 & # ... Relative Uncertainty +/-15%
Ann. Median 0.000& $ ... Relative Uncertainty +/-20%
Annual Total 819375 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 169494 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 5378 $65338 $22161 # 1333 # 387.7 # 759.1 # 47.74$ 0.00& 0.00& 0.00& 0.00& 0.00& 1
2 10525 $25362 # 9799 # 1294 # 377.5 # 745.4 # 41.78$ 0.00& 0.00& 0.00& 0.00& 0.00& 2
3 6223 $14165 # 6590 # 1771 # 367.6 # 983.4 # 35.94$ 0.00& 0.00& 0.00& 0.00& 0.00& 3
4 21275 $ 6446 # 5296 # 2260 # 359.5 # 971.8 # 31.12$ 0.00& 0.00& 0.00& 0.00& 0.00& 4
5 7511 # 4477 # 4282 # 1921 # 353.1 # 841.0 # 26.55$ 0.00& 0.00& 0.00& 0.00& 0.00& 5
6 28611 # 3427 # 3534 # 1581 # 351.4 # 757.0 # 22.31$ 0.00& 0.00& 0.00& 0.00& 0.00& 6
7 26944 # 2796 # 3370 # 1389 # 2548 # 677.5 # 19.01$ 0.00& 0.00& 0.00& 0.00& 0.00& 7
8 12908 # 3382 #12819 # 1268 # 7859 # 613.4 # 16.09$ 0.00& 0.00& 0.00& 0.00& 0.00& 8
9 8802 #12387 #13402 # 1168 # 4507 # 547.5 # 13.28$ 0.00& 0.00& 0.00& 0.00& 0.00& 9
10 6102 # 8779 # 7116 # 1073 # 3217 # 492.0 # 10.80$ 0.00& 0.00& 0.00& 0.00& 0.00& 10
11 4915 #35554 # 6945 # 1000 # 2419 # 441.8 # 9.76$ 0.00& 0.00& 0.00& 0.00& 0.00& 11
12 3512 #76047 $ 4972 # 946.2 # 1828 # 392.7 # 8.26$ 0.00& 0.00& 0.00& 0.00& 0.00& 12
13 2508 #81586 $ 4138 # 894.8 # 1507 # 352.0 # 6.81$ 0.00& 0.00& 0.00& 0.00& 0.00& 13
14 1710 #19716 # 3769 # 848.3 # 1323 # 315.9 # 5.46$ 0.00& 0.00& 0.00& 0.00& 0.00& 14
15 1250 #21502 # 3496 # 811.8 # 1161 # 283.2 # 4.70$ 0.00& 0.00& 0.00& 0.00& 0.00& 15
16 973.9 #46937 # 3036 # 771.1 # 1052 # 254.9 # 3.90$ 0.00& 0.00& 0.00& 0.00& 0.00& 16
17 818.3 #13996 # 2920 # 731.0 # 978.5 # 225.8 # 3.17$ 0.00& 0.00& 0.00& 0.00& 0.00& 17
18 726.1 # 7987 # 2559 # 697.5 # 914.3 # 200.9 # 2.63$ 0.00& 0.00& 0.00& 0.00& 0.00& 18
19 639.1 # 5250 # 2378 # 664.7 # 867.0 # 178.3 # 2.22$ 0.00& 0.00& 0.00& 0.00& 0.00& 19
20 573.1 # 4347 # 2244 # 628.3 # 825.6 # 159.1 # 1.83$ 0.00& 0.00& 0.00& 0.00& 0.00& 20
21 525.9 #17124 # 2085 # 591.2 # 787.8 # 142.6 # 1.36$ 0.00& 0.00& 0.00& 0.00& 0.00& 21
22 481.7 #20490 # 1972 # 556.7 # 755.1 # 128.1 # 0.97$ 0.00& 0.00& 0.00& 0.00& 0.00& 22
23 445.5 #28552 # 1875 # 525.0 # 727.4 # 117.6 # 0.66$ 0.00& 0.00& 0.00& 0.00& 0.00& 23
24 420.0 #48614 # 1798 # 497.8 # 1272 # 106.7 $ 0.43& 0.00& 0.00& 0.00& 0.00& 0.00& 24
25 422.5 #52375 # 1784 # 476.0 # 2043 # 97.83$ 0.24& 0.00& 0.00& 0.00& 0.00& 0.00& 25
26 872.8 #57324 # 1892 # 456.1 # 1585 # 88.37$ 0.11& 0.00& 0.00& 0.00& 0.00& 0.00& 26
27 3700 #43944 # 1917 # 438.1 # 1131 # 80.20$ 0.03& 0.00& 0.00& 0.00& 0.00& 0.00& 27
28 4525 #16729 # 1772 # 420.7 # 940.0 # 71.76$ 0.01& 0.00& 0.00& 0.00& 0.00& 0.00& 28
29 7181 #12598 # 1587 # 408.6 # 872.2 # 63.72$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 29
30 11813 # 1454 # 398.1 # 822.1 # 54.95$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 30
31 7994 # 1336 # 785.4 # 0.00& 0.00& 0.00& 0.00& 31
Mean 6138 $26111 $ 4655 # 927.3 # 1449 # 371.5 $ 10.23& 0.00& 0.00& 0.00& 0.00& 0.00&
Median 3700 $17124 $ 3036 # 791.4 # 940.0 # 269.1 $ 3.90& 0.00& 0.00& 0.00& 0.00& 0.00&
Maximum 28611 $81586 $22161 # 2260 # 7859 # 983.4 $ 47.74& 0.00& 0.00& 0.00& 0.00& 0.00&
Minimum 420.0 $2796 $1336 # 398.1 # 351.4 # 54.95 $ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 190286 $757230 $144301 # 27819 # 44924 # 11145 $ 317.2& 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 3213 & # ... Relative Uncertainty +/-15%
Ann. Median 44.76 & $ ... Relative Uncertainty +/-20%
Annual Total 1176021& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 81586 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 0.00& 2251 $ 452.0 $ 338.4 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 1
2 0.00&18429 $ 398.4 $ 261.0 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 2
3 0.00&34942 $ 672.0 $ 206.7 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 3
4 0.00& 9466 $ 622.5 $ 164.3 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 1.30& 4
5 0.42& 3872 $ 428.4 $ 125.4 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 315.3 $ 5
6 285.8 $ 1881 $ 406.2 $ 90.80$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 215.7 # 6
7 526.8 $ 1091 $ 679.9 $ 65.08$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 127.2 $ 7
8 686.9 $ 760.1 $ 1652 $ 44.64$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 58.74$ 8
9 511.0 $ 601.0 $ 2455 $ 29.03$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 59.27$ 9
10 304.9 $ 2767 $ 1867 $ 18.37$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 709.0 $ 10
11 195.8 $ 3700 $ 1026 $ 11.55$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 920.0 # 11
12 127.2 $ 1924 $ 722.8 $ 6.31$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 811.3 # 12
13 70.50$ 1653 $ 545.5 $ 3.13$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 2163 # 13
14 38.44$ 943.2 $ 436.9 $ 1.88$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 6154 # 14
15 21.99$ 641.7 $ 329.2 $ 1.04$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 3409 # 15
16 13.25$ 630.3 $ 208.2 $ 0.46& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 8412 # 16
17 6.83$ 501.7 $ 144.3 $ 0.21& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 4041 # 17
18 3.30$ 418.2 $ 115.5 $ 0.08& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 2216 # 18
19 1.87$ 387.9 $ 89.63$ 0.02& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 1399 # 19
20 1.29$ 366.8 $ 70.95$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 911.0 # 20
21 1.13$ 276.6 $ 55.31$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 750.3 # 21
22 246.5 $ 219.8 $ 47.09$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 663.5 # 22
23 1286 $ 165.1 $ 43.82$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 613.6 # 23
24 623.4 $ 115.8 $ 5190 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 591.1 # 24
25 743.1 $ 85.59$11653 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 739.7 # 25
26 1150 $ 62.90$ 4351 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 760.1 # 26
27 615.3 $ 73.50$ 2435 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 623.4 # 27
28 2093 $ 275.9 $ 1118 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 846.9 # 28
29 6907 $ 722.2 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 4448 # 29
30 3435 $ 554.7 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00&28839 # 30
31 3927 $ 431.0 $ 0.00& 0.00& 0.00& 0.00& 22187 # 31
Mean 768.5 &3161 $1288 $ 45.61 & 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&3000 &
Median 195.8 & 636.0 $ 545.5 $ 0.754& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 750.3 &
Maximum 6907 &34942 $11653 $ 338.4 & 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00&28839 &
Minimum 0.000& 62.90 $ 43.82 $ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 23823 &88503 $39923 $ 1368 & 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00&92985 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 675.6 & # ... Relative Uncertainty +/-15%
Ann. Median 0.000& $ ... Relative Uncertainty +/-20%
Annual Total 246602 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 34942 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 6809 # 60238 # 3889 # 1561 # 192.3# 5.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 185.3# 1
2 4298 # 27136 # 4356 # 1207 # 179.9# 4.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 141.1# 2
3 5017 # 9581 # 3225 # 1035 # 168.0# 3.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 116.8# 3
4 5648 # 6234 # 2357 # 957.2# 156.6# 2.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 111.7# 4
5 4255 # 4685 # 1691 # 885.7# 145.6# 2.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 127.1# 5
6 3106 # 6216 # 1196 # 809.9# 135.2# 1.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 294.3# 6
7 3399 # 11000 # 951.9# 753.3# 125.2# 1.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 501.8# 7
8 2362 # 5978 # 771.4# 700.9# 115.7# 0.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 453.2# 8
9 1342 # 4702 # 619.0# 654.6# 107.0$ 0.4& 0.0& 0.0& 0.0& 0.0& 0.0& 393.0# 9
10 1109 # 5772 # 486.3# 603.1# 98.3$ 0.2& 0.0& 0.0& 0.0& 0.0& 0.0& 344.9# 10
11 2700 # 6819 # 371.9# 568.9# 88.3$ 0.1& 0.0& 0.0& 0.0& 0.0& 0.0& 295.8# 11
12 1490 # 4691 # 14811 # 560.3# 79.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 268.8# 12
13 10564 # 3854 # 50274 # 556.8# 72.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 106.4& 273.4# 13
14 13349 # 3281 # 61412 # 553.1# 66.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 669.4# 272.9# 14
15 12730 # 2849 # 48454 # 538.6# 60.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 629.9# 254.1# 15
16 7820 # 2434 # 18732 # 510.5# 55.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 540.0# 222.6# 16
17 9753 # 2088 # 7078 # 462.8# 50.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 480.5# 198.9# 17
18 23610 # 1763 # 4807 # 429.0# 45.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 426.8# 193.4# 18
19 17198 # 1530 # 3702 # 397.5# 40.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 373.6# 192.3# 19
20 7717 # 1493 # 2980 # 369.1# 36.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 323.6# 188.2# 20
21 4429 # 2629 # 2481 # 346.0# 32.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 277.0# 183.6# 21
22 2892 # 2635 # 2082 # 324.1# 28.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 229.8# 192.0# 22
23 3376 # 3622 # 1794 # 306.5# 24.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 187.1# 419.5# 23
24 15272 # 2862 # 1520 # 288.2# 21.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 149.9# 3612 # 24
25 43390 # 2613 # 1400 # 268.7# 18.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 128.5# 6843 # 25
26 48409 # 2840 # 1207 # 250.4# 15.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 125.0# 8326 # 26
27 64561 # 3832 # 1109 # 236.6# 12.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 197.3# 3993 # 27
28 38327 # 3976 # 1796 # 225.6# 11.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 392.3# 2120 # 28
29 90206 $ 3282 # 216.4# 9.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 354.3# 1338 # 29
30 107627 $ 2825 # 205.2# 8.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 259.4# 966.4# 30
31 40860 # 2031 # 6.7$ 0.0& 0.0& 0.0& 810.2# 31
Mean 19472 $ 7048 # 8184 # 559.4 # 71.17$ 0.74& 0.00& 0.00& 0.00& 0.00& 195.0 & 1091 #
Median 7717 $3843 #2357 # 524.5 # 55.07 $ 0.000& 0.000& 0.000& 0.000& 0.000& 139.2 & 273.4 #
Maximum 107627 $ 60238 # 61412 # 1561 # 192.3$ 5.5& 0.0& 0.0& 0.0& 0.0& 669.4& 8326 #
Minimum 1109 $1493 # 371.9 # 205.2 # 6.676$ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 111.7 #
Total 603623 $197352 #253690 # 16782 # 2206 $ 22.3& 0.0& 0.0& 0.0& 0.0& 5851 & 33832 #
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3050 & # ... Relative Uncertainty +/-15%
Ann. Median 66.18 & $ ... Relative Uncertainty +/-20%
Annual Total 1113360& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 107627 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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
1 673.7# 656.8# 11.0$ 17013 # 171.2# 23.6$ 0.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 1
2 567.1# 575.5# 7.7$ 8260 # 159.4# 22.2$ 0.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 2
3 496.4# 496.9# 5.3$ 5489 # 147.9# 20.8$ 0.5& 0.0& 0.0& 0.0& 0.0& 0.0& 3
4 456.1# 440.8# 3.9$ 4180 # 136.8# 19.6$ 0.3& 0.0& 0.0& 0.0& 0.0& 0.0& 4
5 423.0# 393.1# 3.2$ 3400 # 126.3# 18.3$ 0.2& 0.0& 0.0& 0.0& 0.0& 0.0& 5
6 405.7# 348.3# 2.9$ 2877 # 118.9# 17.1$ 0.1& 0.0& 0.0& 0.0& 0.0& 0.0& 6
7 393.0# 318.3# 2.7$ 2301 # 111.5$ 16.0$ 0.1& 0.0& 0.0& 0.0& 0.0& 0.0& 7
8 384.8# 293.3# 2.5$ 2036 # 101.6$ 14.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 8
9 413.2# 270.5# 2.4$ 1830 # 94.2$ 13.8$ 0.0& 0.0& 0.0& 0.0& 1137 & 0.0& 9
10 1111 # 249.9# 2.3$ 1642 # 88.5$ 12.8$ 0.0& 0.0& 0.0& 0.0& 5333 # 110.7& 10
11 2415 # 224.6# 2.3$ 1488 # 83.1$ 11.9$ 0.0& 0.0& 0.0& 0.0& 2263 # 201.2# 11
12 11391 # 203.9# 2.3$ 1322 # 79.2$ 11.0$ 0.0& 0.0& 0.0& 0.0& 1372 # 849.8# 12
13 9692 # 177.0# 2.5$ 1217 # 75.5$ 10.1$ 0.0& 0.0& 0.0& 0.0& 957.8# 3416 # 13
14 29511 # 151.5# 6.2$ 992.8# 71.9$ 9.3$ 0.0& 0.0& 0.0& 0.0& 717.1# 3552 # 14
15 79542 $ 128.0# 199.5$ 826.2# 68.4$ 8.5$ 0.0& 0.0& 0.0& 0.0& 538.6# 2300 # 15
16 162766 $ 108.7$ 77.8$ 694.0# 65.0$ 7.8$ 0.0& 0.0& 0.0& 0.0& 388.2# 1677 # 16
17 91933 $ 91.3$ 1067 $ 603.7# 61.7$ 7.0$ 0.0& 0.0& 0.0& 0.0& 276.5# 1600 # 17
18 18419 # 76.9$ 2407 # 538.0# 58.5$ 6.4$ 0.0& 0.0& 0.0& 0.0& 194.3# 1879 # 18
19 8407 # 62.6$ 16318 # 470.6# 55.4$ 5.8$ 0.0& 0.0& 0.0& 0.0& 139.4# 2982 # 19
20 5106 # 46.7$ 5587 # 424.2# 52.4$ 5.2$ 0.0& 0.0& 0.0& 0.0& 93.0$ 2182 # 20
21 3864 # 40.8$ 10923 # 387.9# 49.5$ 4.6$ 0.0& 0.0& 0.0& 0.0& 58.4$ 2018 # 21
22 2886 # 52.1$ 19977 # 359.3# 46.7$ 4.1$ 0.0& 0.0& 0.0& 0.0& 32.3$ 2476 # 22
23 2290 # 49.6$ 7757 # 329.1# 44.0$ 3.5$ 0.0& 0.0& 0.0& 0.0& 14.3$ 15775 # 23
24 1913 # 42.1$ 5488 # 297.1# 41.4$ 3.1$ 0.0& 0.0& 0.0& 0.0& 4.9$ 12459 # 24
25 1541 # 34.7$ 23786 # 274.5# 38.9$ 2.6$ 0.0& 0.0& 0.0& 0.0& 1.2& 4033 # 25
26 1285 # 28.8$ 41899 # 255.7# 36.5$ 2.3$ 0.0& 0.0& 0.0& 0.0& 0.1& 2304 # 26
27 1114 # 23.0$ 18157 # 240.3# 34.2$ 1.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 1524 # 27
28 992.8# 16.3$ 12204 # 224.0# 31.9$ 1.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 1023 # 28
29 873.1# 27735 # 202.8# 29.8$ 1.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 749.7# 29
30 801.3# 97584 $ 185.4# 27.6$ 1.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 611.1# 30
31 735.0# 45977 # 25.4$ 0.0& 0.0& 0.0& 503.8# 31
Mean 14284 $ 200.1 $10877 $ 2012 # 75.27$ 9.60$ 0.08& 0.00& 0.00& 0.00& 450.7 & 2072 &
Median 1285 $ 139.8 $ 199.5 $ 760.1 # 64.99 $ 8.123$ 0.000& 0.000& 0.000& 0.000& 9.563&1023 &
Maximum 162766 $ 656.8$ 97584 $ 17013 # 171.2$ 23.6$ 0.8& 0.0& 0.0& 0.0& 5333 & 15775 &
Minimum 384.8 $ 16.34 $ 2.263$ 185.4 # 25.41 $ 1.048$ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 442802 $ 5602 $337200 $ 60362 # 2333 $ 288.1$ 2.6& 0.0& 0.0& 0.0& 13522 & 64225 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2538 & # ... Relative Uncertainty +/-15%
Ann. Median 13.85 & $ ... Relative Uncertainty +/-20%
Annual Total 926337 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 162766 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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
1 431.9 # 3529 # 3481 # 1120 # 10.34$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 1997 # 1
2 393.4 # 6047 # 3287 # 792.1 # 7.75$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 1193 # 2
3 354.4 # 4290 # 3006 # 598.4 # 6.52$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 842.4 # 3
4 302.1 # 2340 # 2674 # 465.6 # 5.67$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 815.4 # 4
5 240.2 #14909 # 2400 # 370.0 # 4.88$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 964.8 # 5
6 415.9 #16555 # 2257 # 309.4 # 4.17$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 703.1 # 6
7 2984 # 7421 # 2023 # 272.7 # 3.52$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 399.5 # 7
8 2944 #45911 $ 1847 # 244.4 # 2.93$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 701.4 # 8
9 1566 #55213 $ 1680 # 214.7 # 2.41$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 1136 # 9
10 966.1 #51152 # 1519 # 192.5 # 1.95$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 1604 # 10
11 812.2 #18554 # 1366 # 174.2 # 1.55$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 7000 # 11
12 1236 # 9067 # 1209 # 163.6 # 1.20$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 7323 # 12
13 4190 # 4547 # 1015 # 148.1 # 0.90$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 2397 # 13
14 7412 # 3411 # 895.5 # 133.6 # 0.65$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 1600 # 14
15 7426 #27401 # 806.3 # 119.5 # 0.44& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 974.3 # 15
16 3276 #99743 $ 738.5 # 107.1 $ 0.26& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 701.2 # 16
17 2207 #86555 $ 688.9 # 96.88$ 0.13& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 535.3 # 17
18 1696 #34298 # 658.3 # 87.34$ 0.05& 0.00& 0.00& 0.00& 0.00& 0.00& 3123 & 420.0 # 18
19 1608 #50084 # 657.8 # 78.40$ 0.01& 0.00& 0.00& 0.00& 0.00& 0.00& 4095 # 321.7 # 19
20 1943 #32409 # 1087 # 70.03$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 2447 # 252.5 # 20
21 948.2 #11641 # 1418 # 62.21$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 1508 # 201.9 # 21
22 682.2 # 7154 # 1136 # 54.95$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 972.8 # 162.5 # 22
23 3161 # 5786 # 943.3 # 48.22$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 684.3 # 132.4 # 23
24 2397 #17780 # 799.9 # 42.01$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 499.5 # 107.1 $ 24
25 2053 #35467 # 644.2 # 36.31$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 366.2 # 88.95$ 25
26 5818 #14374 # 540.0 # 31.10$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 277.3 #25031 $ 26
27 3294 # 6904 # 529.3 # 26.09$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 216.6 #14185 # 27
28 8574 # 4751 # 846.7 # 21.33$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 167.7 # 4417 # 28
29 20129 # 3822 # 2841 # 17.14$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 125.0 $ 3428 # 29
30 9037 # 1830 # 13.48$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 3256 # 2922 # 30
31 4224 # 1265 # 0.00& 0.00& 0.00& 0.00& 21728 # 31
Mean 3314 #23487 $ 1487 # 203.7 $ 1.79& 0.00& 0.00& 0.00& 0.00& 0.00& 591.3 & 3364 $
Median 2053 #14374 $ 1209 # 113.3 $ 0.26& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 964.8 $
Maximum 20129 #99743 $ 3481 # 1120 $ 10.34& 0.00& 0.00& 0.00& 0.00& 0.00& 4095 &25031 $
Minimum 240.2 #2340 $ 529.3 # 13.48 $ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 88.95 $
Total 102720 #681117 $ 46090 # 6112 $ 55.3& 0.0& 0.0& 0.0& 0.0& 0.0& 17738 &104286 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2618 & # ... Relative Uncertainty +/-15%
Ann. Median 0.033& $ ... Relative Uncertainty +/-20%
Annual Total 958118 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 99743 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 10723 # 17291 # 26809 # 297.0# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1
2 5234 # 18224 # 26082 # 255.5# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2
3 3230 # 40282 # 10539 # 216.8# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 3
4 2235 # 55535 # 7109 # 177.8# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 4
5 1645 # 22679 # 5321 # 148.4# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 5
6 1276 # 9554 # 4541 # 119.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 6
7 956.7# 6332 # 3987 # 95.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 7
8 753.2# 7303 # 3479 # 81.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 8
9 603.2# 22333 # 3106 # 68.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 9
10 495.3# 16506 # 2850 # 54.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 10
11 417.5# 8879 # 2590 # 41.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 11
12 348.7# 6788 # 2307 # 32.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 12
13 2428 # 5456 # 2096 # 26.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 13
14 1992 # 5108 # 1924 # 19.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 14
15 3127 # 4618 # 1757 # 14.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 15
16 3009 # 4231 # 1704 # 10.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 16
17 2185 # 3872 # 1519 # 6.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 17
18 1507 # 3542 # 1401 # 4.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 18
19 6035 # 3298 # 1237 # 2.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 7202 & 19
20 6220 # 4793 # 1117 # 1.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 5826 # 20
21 18091 # 4403 # 1008 # 0.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 3615 # 21
22 26131 # 4125 # 913.3# 0.4& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2397 # 22
23 84882 $ 3647 # 849.3# 0.1& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2008 # 23
24 102649 $ 3050 # 770.5# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1616 # 24
25 36518 # 2631 # 691.4# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1097 # 25
26 51917 # 2349 # 616.0# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 877.5# 26
27 44566 # 2152 # 544.3# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 742.7# 27
28 72815 # 2629 # 485.4# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 630.5# 28
29 47404 # 433.7# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 555.2# 29
30 56371 # 394.2# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 498.2# 30
31 23101 # 348.1# 0.0& 0.0& 0.0& 0.0& 453.2# 31
Mean 19963 $10415 # 3824 # 55.85& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 887.6 &
Median 3230 $4950 #1704 # 12.27 & 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Maximum 102649 $ 55535 # 26809 # 297.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 7202 &
Minimum 348.7 $2152 # 348.1 # 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 618867 $291608 #118530 # 1676 & 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 27517 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2899 & # ... Relative Uncertainty +/-15%
Ann. Median 0.000& $ ... Relative Uncertainty +/-20%
Annual Total 1058198& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 102649 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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
1 413.2 # 8417 # 944.3 # 182.1 # 131.1 # 7.28$ 13.69$ 1.80$ 0.00& 0.31& 859.9 # 191.8 # 1
2 375.0 # 5502 # 1179 # 161.5 # 124.9 # 58.35$ 14.44$ 1.30$ 0.00& 0.26& 721.1 # 188.8 # 2
3 348.2 # 5306 # 1039 # 144.2 # 115.8 # 78.00$ 20.41$ 0.93$ 0.00& 0.18& 583.8 # 185.8 # 3
4 327.4 # 3377 # 880.8 # 127.1 # 108.3 $ 71.98$ 46.35$ 0.62& 0.00& 0.15& 488.4 # 183.2 # 4
5 309.9 # 2968 # 785.0 # 111.9 $ 99.18$ 64.20$ 66.81$ 0.38& 0.00& 0.13& 439.6 # 181.5 # 5
6 291.9 # 3705 # 693.2 # 99.58$ 90.50$ 55.79$ 59.00$ 0.20& 0.00& 0.13& 411.9 # 179.4 # 6
7 277.5 # 2836 # 624.4 # 90.40$ 80.60$ 49.26$ 43.60$ 0.11& 0.00& 0.10& 388.5 # 178.2 # 7
8 266.8 # 4007 # 579.5 # 84.25$ 71.56$ 42.60$ 32.23$ 0.04& 0.00& 0.02& 368.8 # 177.9 # 8
9 3101 # 6702 # 533.3 # 94.48$ 64.40$ 36.68$ 26.56$ 0.01& 0.00& 0.00& 350.9 # 177.9 # 9
10 2629 # 4670 # 495.3 # 148.7 $ 58.35$ 31.87$ 21.04$ 0.00& 0.00& 0.00& 334.7 # 688.0 # 10
11 18294 # 3078 # 578.0 # 2447 $ 65.18$ 27.00$ 17.11$ 0.00& 0.00& 0.00& 321.1 # 301.0 # 11
12 58511 $ 2250 # 3064 # 3814 # 99.18$ 21.58$ 14.12$ 0.00& 28.99& 230.6 & 312.3 # 217.7 # 12
13 34542 # 4558 # 3985 # 3304 # 93.18$ 17.57$ 11.60$ 0.00& 51.57$ 4659 # 302.6 # 185.0 # 13
14 28730 # 8444 # 3168 # 2562 # 79.99$ 14.12$ 9.29$ 0.00& 38.02$ 2031 # 292.4 # 173.1 # 14
15 7766 # 7288 #17129 # 1448 # 68.94$ 11.55$ 7.83$ 0.00& 29.55$ 1616 # 281.7 # 166.2 # 15
16 4569 # 4497 # 6535 # 976.8 # 57.46$ 9.17$ 6.73$ 0.00& 22.88$ 1129 # 271.7 # 161.7 # 16
17 3218 # 3276 #13050 # 822.9 # 48.08$ 7.04$ 5.79$ 0.00& 17.21$ 867.0 # 262.8 # 156.8 # 17
18 2434 # 2456 # 5496 # 722.3 # 41.13$ 5.52$ 4.76$ 0.00& 12.57$ 750.0 # 256.3 # 587.1 # 18
19 1960 # 1832 # 3143 # 636.2 # 35.57$ 4.36$ 4.03$ 0.00& 8.95$ 654.1 # 253.3 # 804.2 # 19
20 1562 # 1342 # 2151 # 557.0 # 31.52$ 3.58$ 3.56$ 0.00& 6.30$ 588.3 # 248.5 # 6697 # 20
21 1290 # 1118 # 1570 # 496.2 # 27.79$ 2.83$ 3.10$ 0.00& 4.80$ 534.7 # 243.2 # 3277 # 21
22 1064 # 1037 # 1173 # 438.4 # 24.63$ 2.11$ 2.46$ 0.00& 3.74$ 497.2 # 237.3 # 4029 # 22
23 946.3 # 1018 # 931.9 # 378.7 # 21.77$ 1.60$ 1.93$ 0.00& 2.98$ 460.8 # 230.4 # 2671 # 23
24 970.3 # 1084 # 771.2 # 322.7 # 18.72$ 1.36$ 1.56$ 0.00& 2.21$ 436.6 # 222.2 # 1371 # 24
25 1013 # 1102 # 635.2 # 279.7 # 16.00$ 1.04$ 1.29$ 0.00& 1.51$ 419.2 # 215.6 # 1004 # 25
26 4911 # 999.5 # 524.0 # 241.4 # 13.80$ 0.69$ 1.07$ 0.00& 1.11$ 403.2 # 211.0 # 818.0 # 26
27 6808 # 965.3 # 437.5 # 217.9 # 11.80$ 0.52& 0.85$ 0.00& 0.84$ 389.0 # 207.7 # 676.9 # 27
28 4746 # 952.1 # 358.9 # 196.7 # 10.50$ 0.40& 0.72$ 0.00& 0.72$ 383.0 # 204.4 # 577.3 # 28
29 7518 # 290.0 # 180.1 # 9.39$ 1.38& 0.71$ 0.00& 0.55& 379.9 # 200.1 # 509.1 # 29
30 16965 # 247.9 # 149.3 # 8.39$ 8.74$ 1.04$ 0.00& 0.41& 377.0 # 195.3 # 452.2 # 30
31 27693 # 209.6 # 7.77$ 1.71$ 0.00& 378.4 # 399.4 # 31
Mean 7866 $3385 #2361 # 714.5 $ 55.98 $ 21.27 & 14.37 $ 0.174& 7.830& 554.4 & 330.6 # 889.2 #
Median 2434 $3023 # 880.8 # 260.5 $ 57.46 $ 8.956& 6.727$ 0.000& 0.974& 383.0 & 276.7 # 301.0 #
Maximum 58511 $ 8444 #17129 # 3814 $ 131.1 $ 78.00& 66.81$ 1.80& 51.57& 4659 & 859.9 # 6697 #
Minimum 266.8 $ 952.1 # 209.6 # 84.25 $ 7.775$ 0.395& 0.715$ 0.000& 0.000& 0.000& 195.3 # 156.8 #
Total 243849 $ 94786 # 73202 # 21435 $ 1736 $ 638.2& 445.4$ 5.4& 234.9& 17185 & 9917 # 27567 #
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1345 & # ... Relative Uncertainty +/-15%
Ann. Median 180.1 & $ ... Relative Uncertainty +/-20%
Annual Total 491001 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 58511 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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
1 352.3# 3380 # 9331 # 12799 # 3985 # 327.9# 5.3$ 0.0& 0.0& 0.0& 0.0& 2430 # 1
2 10605 # 14778 # 15379 # 11930 # 3813 # 296.4# 4.3$ 0.0& 0.0& 0.0& 0.0& 3313 # 2
3 54405 # 8577 # 7138 # 11357 # 3641 # 267.9# 3.2$ 0.0& 0.0& 0.0& 0.0& 5234 # 3
4 14107 # 4109 # 5629 # 11354 # 3474 # 241.2# 2.2$ 0.0& 0.0& 0.0& 0.0& 4157 # 4
5 4755 # 3019 # 5006 # 37063 # 3311 # 216.8# 1.5$ 0.0& 0.0& 0.0& 160.8& 4058 # 5
6 3369 # 5731 # 15599 # 70727 # 3162 # 198.5# 1.0$ 0.0& 0.0& 0.0& 2551 # 4011 # 6
7 6448 # 62621 $ 43075 $ 33495 # 3004 # 184.3# 0.7$ 0.0& 0.0& 0.0& 1044 # 3677 # 7
8 3983 # 33060 # 72055 $ 20737 # 2845 # 169.0# 0.6$ 0.0& 0.0& 0.0& 587.6# 3439 # 8
9 2504 # 26398 # 88975 $ 16752 # 2695 # 153.4# 0.5& 0.0& 0.0& 0.0& 362.4# 3218 # 9
10 16739 # 7082 #190281 $ 14336 # 2545 # 134.1# 0.4& 0.0& 0.0& 0.0& 385.0# 3026 # 10
11 43330 # 16464 #273917 $ 12558 # 2406 # 114.7$ 0.4& 0.0& 0.0& 0.0& 892.2# 2854 # 11
12 12772 # 47001 #222434 $ 11225 # 2257 # 100.1$ 0.3& 0.0& 0.0& 0.0& 1096 # 2695 # 12
13 14627 # 36549 #264554 $ 10099 # 2112 # 87.6$ 0.2& 0.0& 0.0& 0.0& 2502 # 2515 # 13
14 14897 # 11602 #287867 $ 9212 # 1969 # 77.2$ 0.2& 0.0& 0.0& 0.0& 6927 # 2352 # 14
15 5636 # 7446 #264760 $ 8525 # 1807 # 67.5$ 0.1& 0.0& 0.0& 0.0& 5435 # 2958 # 15
16 3986 # 6289 # 58979 $ 7948 # 1628 # 61.0$ 0.0& 0.0& 0.0& 0.0& 4278 # 3317 # 16
17 3045 # 8596 # 20369 # 7474 # 1468 # 55.9$ 0.0& 0.0& 0.0& 0.0& 4435 # 12002 # 17
18 3632 # 12209 # 49720 $ 7155 # 1316 # 49.8$ 0.0& 0.0& 0.0& 0.0& 5113 # 10881 # 18
19 3523 # 12949 #123938 $ 6877 # 1175 # 42.5$ 0.0& 0.0& 0.0& 0.0& 9064 # 8552 # 19
20 3392 # 9233 # 84798 $ 6606 # 1048 # 37.5$ 0.0& 0.0& 0.0& 0.0& 6641 # 5908 # 20
21 3238 # 8211 # 73533 $ 6340 # 943.4# 33.9$ 0.0& 0.0& 0.0& 0.0& 6296 # 4635 # 21
22 3438 # 7184 # 88354 $ 6083 # 856.5# 30.9$ 0.0& 0.0& 0.0& 0.0& 5193 # 4256 # 22
23 2133 # 16556 # 77244 $ 5832 # 776.3# 27.8$ 0.0& 0.0& 0.0& 0.0& 4804 # 4077 # 23
24 1352 # 69889 $ 39360 # 5589 # 698.3# 24.5$ 0.0& 0.0& 0.0& 0.0& 4441 # 4033 # 24
25 1027 # 44083 # 26720 # 5353 # 631.0# 21.4$ 0.0& 0.0& 0.0& 0.0& 4013 # 3919 # 25
26 1406 # 17283 # 22492 # 5123 # 564.2# 18.4$ 0.0& 0.0& 0.0& 0.0& 3703 # 3393 # 26
27 1792 # 11527 # 19942 # 4892 # 506.0# 15.0$ 0.0& 0.0& 0.0& 0.0& 3453 # 3034 # 27
28 1319 # 9898 # 17616 # 4641 # 469.3# 11.3$ 0.0& 0.0& 0.0& 0.0& 3233 # 2797 # 28
29 5173 # 16120 # 4411 # 434.5# 8.4$ 0.0& 0.0& 0.0& 0.0& 3096 # 4700 # 29
30 4609 # 14894 # 4175 # 400.3# 6.6$ 0.0& 0.0& 0.0& 0.0& 2831 # 5307 # 30
31 2869 # 13811 # 363.7# 0.0& 0.0& 0.0& 5987 # 31
Mean 8208 #18633 $81093 $12689 # 1816 # 102.7 $ 0.68& 0.00& 0.00& 0.00& 3085 & 4411 #
Median 3632 #11565 $43075 $ 8237 # 1628 # 64.26$ 0.05& 0.00& 0.00& 0.00& 3164 & 3919 #
Maximum 54405 # 69889 $287867 $ 70727 # 3985 # 327.9$ 5.3& 0.0& 0.0& 0.0& 9064 & 12002 #
Minimum 352.3 #3019 $5006 $4175 # 363.7 # 6.556$ 0.000& 0.000& 0.000& 0.000& 0.000&2352 #
Total 254463# 521726$ 2513888$ 380670# 56305# 3081$ 21& 0& 0& 0& 92538& 136735#
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 10848 & # ... Relative Uncertainty +/-15%
Ann. Median 1406 & $ ... Relative Uncertainty +/-20%
Annual Total 3959427& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 287867 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 5050 # 8529 #12064 # 5822 # 1097 # 838.1 # 618.0 # 367.0 # 220.2 # 136.8 # 50.58$ 191.6 # 1
2 4660 # 7578 #22764 # 5357 # 1085 # 834.3 # 608.0 # 357.8 # 216.5 # 130.4 # 48.88$ 189.3 # 2
3 5510 # 6326 #27205 # 4886 # 1071 # 830.0 # 597.6 # 350.2 # 212.7 # 124.6 # 51.33$ 185.8 # 3
4 5114 # 5603 #13512 # 4475 # 1057 # 823.8 # 588.1 # 345.0 # 208.7 # 119.8 # 1145 # 1274 # 4
5 5176 # 5049 # 8566 # 4101 # 1047 # 817.6 # 579.5 # 339.7 # 204.7 # 115.4 # 555.5 # 3319 # 5
6 4862 # 5021 # 7088 # 3721 # 1037 # 815.5 # 571.1 # 334.3 # 201.0 # 111.7 # 474.1 # 2474 # 6
7 5454 # 6739 #10372 # 3401 # 1027 # 811.1 # 563.0 # 329.1 # 196.7 # 108.3 $ 463.8 # 2423 # 7
8 6005 # 6309 #12984 # 3146 # 1017 # 802.0 # 553.8 # 324.1 # 193.0 # 105.3 $ 447.2 # 1708 # 8
9 5387 # 5831 # 9078 # 2929 # 1005 # 793.9 # 545.7 # 319.3 # 189.3 # 101.9 $ 422.4 # 1368 # 9
10 5133 # 5040 # 7172 # 2703 # 995.5 # 785.4 # 537.2 # 314.0 # 185.6 # 98.08$ 400.6 # 1127 # 10
11 4522 # 4418 # 6513 # 2467 # 985.0 # 777.9 # 529.0 # 308.7 # 182.1 # 93.58$ 382.3 # 893.0 # 11
12 3943 # 4014 # 8546 # 2302 # 974.4 # 768.9 # 520.6 # 303.8 # 178.7 # 91.35$ 368.5 # 730.8 # 12
13 3802 # 3657 # 9864 # 2184 # 969.2 # 761.3 # 510.9 # 298.9 # 175.2 # 88.96$ 349.8 # 656.1 # 13
14 4567 # 3366 # 7530 # 2066 # 965.7 # 754.5 # 504.0 # 294.0 # 171.8 # 86.60$ 332.9 # 2779 # 14
15 3698 # 3118 # 7309 # 1954 # 962.8 # 747.0 # 494.8 # 289.7 # 168.3 # 84.31$ 320.2 # 2209 # 15
16 3932 # 2895 #18558 # 1838 # 959.0 # 737.7 # 487.6 # 285.3 # 165.0 # 82.02$ 308.0 # 2386 # 16
17 4597 # 2683 #37662 # 1697 # 952.6 # 730.8 # 480.3 # 281.0 # 161.9 # 79.78$ 295.7 # 3096 # 17
18 5176 # 2521 #26060 # 1567 # 943.6 # 723.3 # 471.7 # 276.5 # 158.6 # 77.61$ 283.7 # 3688 # 18
19 5102 # 2353 #15139 # 1449 # 935.5 # 715.3 # 463.9 # 272.3 # 155.8 # 75.41$ 277.3 # 3875 # 19
20 4733 # 2189 #10382 # 1305 # 926.6 # 708.0 # 455.5 # 267.7 # 152.5 # 73.30$ 271.5 #43396 # 20
21 4454 # 2010 # 8401 # 1268 # 919.1 # 699.0 # 446.8 # 264.1 # 149.8 # 71.23$ 263.4 #17314 # 21
22 4354 # 1962 # 7450 # 1191 # 910.7 # 691.1 # 439.3 # 259.9 # 146.7 # 69.14$ 255.8 #11997 # 22
23 4362 # 3164 # 6878 # 1135 # 903.9 # 681.9 # 432.1 # 255.7 # 143.5 # 67.15$ 247.5 # 8254 # 23
24 4285 # 2461 #25943 # 1100 # 904.3 # 673.8 # 425.3 # 251.6 # 140.8 # 65.16$ 240.7 # 5570 # 24
25 4426 # 3518 #31256 # 1074 # 890.5 # 665.2 # 416.1 # 247.7 # 137.9 # 63.20$ 235.4 # 4102 # 25
26 4080 # 5011 #16336 # 1052 # 875.9 # 658.9 # 409.8 # 243.3 # 135.1 # 61.31$ 222.4 # 3401 # 26
27 6003 #12235 #10127 # 1039 # 864.8 # 651.7 # 401.3 # 239.7 # 132.5 # 59.42$ 218.1 # 2926 # 27
28 10801 #18143 # 8020 # 1341 # 854.8 # 641.6 # 394.1 # 236.1 # 129.8 # 57.58$ 210.2 # 2754 # 28
29 16421 #11756 # 7194 # 1272 # 849.5 # 634.8 # 387.2 # 232.3 # 126.8 # 55.79$ 203.5 # 2534 # 29
30 9816 # 6663 # 1165 # 845.1 # 627.5 # 380.3 # 228.1 # 129.1 # 53.99$ 197.5 # 2302 # 30
31 7197 # 6205 # 841.9 # 373.3 # 223.8 # 52.27$ 2112 # 31
Mean 5568 # 5293 #13317 # 2367 # 957.3 # 740.1 # 489.9 # 288.4 # 169.0 # 85.85$ 318.1 $ 4556 #
Median 4862 #4418 #9864 #1896 # 959.0 # 742.3 # 487.6 # 285.3 # 166.6 # 82.02 $ 280.5 $2474 #
Maximum 16421 #18143 #37662 # 5822 # 1097 # 838.1 # 618.0 # 367.0 # 220.2 # 136.8 $ 1145 $43396 #
Minimum 3698 #1962 #6205 #1039 # 841.9 # 627.5 # 373.3 # 223.8 # 126.8 # 52.27 $ 48.88 $ 185.8 #
Total 172621 #153498 #412839 # 71007 # 29675 # 22202 # 15186 # 8941 # 5070 # 2661 $ 9544 $141234 #
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2854 $ # ... Relative Uncertainty +/-15%
Ann. Median 820.7 $ $ ... Relative Uncertainty +/-20%
Annual Total 1044479$
Maximum Minimum
Daily 43396 $ 48.88 $
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 1997 # 2083 # 2025 # 1391 # 769.1 # 1118 # 670.8 # 284.6 # 105.3 $ 32.30$ 0.27& 2075 # 1
2 1899 # 1941 # 2294 # 1326 # 765.0 # 1062 # 652.7 # 276.4 # 101.8 $ 30.67$ 0.13& 1900 # 2
3 1835 # 1816 # 2110 # 1292 # 764.5 # 1017 # 638.0 # 266.8 # 98.36$ 28.78$ 0.05& 1703 # 3
4 1758 # 1659 # 1849 # 1216 # 764.7 # 976.7 # 625.2 # 257.6 # 94.98$ 26.80$ 0.01& 1595 # 4
5 1600 # 2020 #16526 # 1270 # 764.1 # 952.3 # 615.4 # 251.0 # 91.69$ 24.87$ 0.00& 1606 # 5
6 1431 # 1686 # 8990 # 1492 # 763.4 # 932.7 # 604.8 # 243.1 # 88.42$ 23.02$ 0.00& 7356 # 6
7 1315 # 1483 # 8019 # 1462 # 759.6 # 919.6 # 594.5 # 233.5 # 85.29$ 21.25$ 0.00& 4920 # 7
8 1257 # 1359 # 6791 # 1344 # 754.0 # 908.8 # 582.6 # 224.6 # 82.16$ 19.59$ 0.00& 3347 # 8
9 1202 # 1387 # 5313 # 1211 # 748.5 # 899.1 # 572.4 # 216.3 # 79.17$ 17.98$ 0.00& 2701 # 9
10 1168 # 2833 #12146 # 1129 # 747.0 # 888.5 # 561.1 # 211.0 # 76.20$ 16.47$ 0.00& 2220 # 10
11 1138 # 2352 #38706 # 1065 # 743.7 # 875.9 # 549.6 # 205.5 # 73.29$ 15.04$ 0.00& 2462 # 11
12 1123 # 1714 #48932 # 1034 # 739.9 # 861.2 # 538.0 # 196.6 # 70.47$ 13.68$ 0.00& 2605 # 12
13 1295 # 2310 #25863 # 1009 # 733.0 # 849.9 # 527.2 # 190.6 # 67.69$ 12.40$ 0.00& 3762 # 13
14 2039 # 3614 #10462 # 977.7 # 725.4 # 839.1 # 516.4 # 184.3 # 65.03$ 11.19$ 0.00& 3102 # 14
15 1784 # 4717 # 7120 # 954.6 # 736.8 # 826.7 # 502.6 # 177.6 # 62.38$ 10.05$ 0.00& 4081 # 15
16 1480 #25763 # 5305 # 933.2 # 848.2 # 813.9 # 486.9 # 171.0 # 59.84$ 8.99$ 0.00& 3175 # 16
17 1364 #27555 # 4500 # 913.3 # 873.2 # 802.6 # 472.4 # 165.3 # 57.32$ 8.00$ 0.00& 2549 # 17
18 3900 # 8655 # 4055 # 897.1 # 874.2 # 790.2 # 457.3 # 160.8 # 54.88$ 7.08$ 0.00& 2180 # 18
19 14809 # 5500 # 3674 # 880.5 # 866.1 # 777.3 # 442.5 # 156.5 # 52.51$ 6.22$ 0.00& 1864 # 19
20 26173 # 4612 # 3282 # 865.3 # 880.4 # 767.8 # 426.5 # 152.8 # 50.19$ 5.43$ 0.00& 1608 # 20
21 10151 # 4023 # 2974 # 851.7 # 1313 # 758.0 # 414.1 # 148.9 # 47.98$ 4.71$ 0.00& 1536 # 21
22 6945 # 3491 # 2738 # 841.6 # 3352 # 746.3 # 401.0 # 144.6 # 46.23$ 4.05$ 1759 & 4188 # 22
23 4915 # 3089 # 2494 # 830.3 # 3720 # 732.6 # 386.9 # 140.3 # 44.57$ 3.51$ 2315 # 5518 # 23
24 4671 # 2669 # 2261 # 816.6 # 2588 # 718.6 # 371.9 # 136.1 # 42.93$ 3.01$ 3408 #18161 # 24
25 4715 # 2514 # 2127 # 821.1 # 1994 # 707.3 # 357.4 # 132.0 # 41.29$ 2.53$10839 #29655 # 25
26 3987 # 2327 # 2010 # 814.2 # 1682 # 697.4 # 346.1 # 128.0 # 39.70$ 2.04$12048 #10579 # 26
27 3302 # 2231 # 1896 # 798.0 # 1538 # 703.0 # 336.2 # 124.0 # 38.17$ 1.62$ 5353 # 4887 # 27
28 2820 # 2038 # 1824 # 785.7 # 1457 # 709.5 # 327.4 # 120.1 # 36.63$ 1.25$ 3644 # 3626 # 28
29 2563 # 1660 # 778.7 # 1355 # 712.2 # 317.7 # 116.3 # 35.16$ 0.94$ 2887 # 2894 # 29
30 2596 # 1550 # 774.3 # 1248 # 692.3 # 305.8 # 112.6 # 33.73$ 0.68$ 2380 # 2460 # 30
31 2319 # 1469 # 1179 # 293.4 # 108.9 $ 0.46& 2179 # 31
Mean 3857 #4552 #7773 #1026 #1195 # 835.2 # 480.5 # 181.9 $ 64.11 $ 11.76 &1488 &4597 #
Median 1997 #2339 #3282 # 943.9 # 848.2 # 820.3 # 486.9 # 171.0 $ 61.11 $ 8.993& 0.000&2701 #
Maximum 26173 #27555 #48932 # 1492 # 3720 # 1118 # 670.8 # 284.6 $ 105.3 $ 32.30&12048 &29655 #
Minimum 1123 #1359 #1469 # 774.3 # 725.4 # 692.3 # 293.4 # 108.9 $ 33.73 $ 0.457& 0.000&1536 #
Total 119553 #127443 #240964 # 30774 # 37048 # 25057 # 14894 # 5638 $ 1923 $ 364.6& 44634 &142493 #
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2167 & # ... Relative Uncertainty +/-15%
Ann. Median 830.3 & $ ... Relative Uncertainty +/-20%
Annual Total 790786 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 48932 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 2831 # 14223 # 5599 # 918.3# 1111 # 575.9# 244.0# 55.3$ 0.3& 0.0& 0.0& 0.0& 1
2 4495 # 9510 # 5253 # 1067 # 1034 # 564.2# 230.7# 51.7$ 0.1& 0.0& 0.0& 0.0& 2
3 3728 # 18278 # 4860 # 1040 # 985.7# 554.1# 223.1# 48.2$ 0.0& 0.0& 0.0& 0.0& 3
4 2858 # 20775 # 4515 # 953.4# 959.9# 542.1# 215.3# 44.9$ 0.0& 0.0& 0.0& 0.0& 4
5 2636 # 59938 # 4171 # 963.5# 935.2# 526.6# 207.8# 41.8$ 0.0& 0.0& 0.0& 0.0& 5
6 2260 # 74951 $ 3900 # 912.4# 921.3# 510.9# 200.2# 38.7$ 0.0& 0.0& 0.0& 0.0& 6
7 1918 # 55563 # 4104 # 896.3# 905.0# 496.9# 193.1# 35.9$ 0.0& 0.0& 0.0& 0.0& 7
8 1700 # 25435 # 3884 # 1140 # 883.4# 482.5# 185.8# 33.1$ 0.0& 0.0& 0.0& 0.0& 8
9 1536 # 18396 # 4506 # 1176 # 868.1# 468.3# 178.8# 30.5$ 0.0& 0.0& 0.0& 184.4& 9
10 1402 # 44720 # 4507 # 2485 # 855.2# 454.4# 171.9# 28.0$ 0.0& 0.0& 0.0& 152.2$ 10
11 1287 # 36889 # 3759 # 2639 # 841.9# 441.3# 165.5# 25.4$ 0.0& 0.0& 0.0& 4481 # 11
12 1145 # 17216 # 3473 # 2190 # 828.2# 427.8# 159.1# 23.0$ 0.0& 0.0& 0.0& 4047 # 12
13 1035 # 13376 # 3102 # 1673 # 805.3# 414.2# 153.2# 20.8$ 0.0& 0.0& 0.0& 5768 # 13
14 951.5# 12576 # 2693 # 1487 # 790.9# 401.4# 146.6# 18.6$ 0.0& 0.0& 0.0& 3064 # 14
15 885.1# 22418 # 2456 # 1219 # 779.2# 389.0# 140.1# 16.6$ 0.0& 0.0& 0.0& 2784 # 15
16 820.1# 24551 # 2223 # 1134 # 764.8# 376.3# 133.8# 14.8$ 0.0& 0.0& 0.0& 2127 # 16
17 8809 # 19759 # 2044 # 1079 # 750.2# 367.4# 127.6# 13.1$ 0.0& 0.0& 0.0& 2192 # 17
18 150334 $ 15175 # 1897 # 1031 # 737.4# 359.0# 121.7# 11.5$ 0.0& 0.0& 0.0& 1796 # 18
19 211565 $ 13785 # 1729 # 995.8# 725.5# 353.0# 115.9# 10.0$ 0.0& 0.0& 0.0& 2245 # 19
20 59570 $ 9278 # 1558 # 963.7# 714.6# 340.4# 110.2$ 8.6$ 0.0& 0.0& 0.0& 2603 # 20
21 24156 # 7200 # 1414 # 949.2# 701.8# 331.0# 104.8$ 7.4$ 0.0& 0.0& 0.0& 6174 # 21
22 14193 # 5995 # 1271 # 942.1# 689.8# 322.0# 99.5$ 6.3$ 0.0& 0.0& 0.0& 7001 # 22
23 13001 # 5386 # 1184 # 932.9# 678.2# 314.1# 94.4$ 5.2$ 0.0& 0.0& 0.0& 7123 # 23
24 15106 # 5368 # 1140 # 922.6# 667.2# 302.2# 89.4$ 4.3$ 0.0& 0.0& 0.0& 11208 # 24
25 9655 # 5457 # 1095 # 914.7# 654.7# 292.9# 84.6$ 3.5$ 0.0& 0.0& 0.0& 13460 # 25
26 7384 # 6075 # 1053 # 910.8# 643.3# 284.8# 80.0$ 2.8$ 0.0& 0.0& 0.0& 8421 # 26
27 6520 # 6083 # 1014 # 898.0# 632.2# 274.5# 75.5$ 2.2$ 0.0& 0.0& 0.0& 4914 # 27
28 37919 $ 5685 # 985.6# 890.3# 620.4# 265.8# 71.1$ 1.7$ 0.0& 0.0& 0.0& 3727 # 28
29 71030 $ 968.4# 894.7# 609.9# 256.3# 66.9$ 1.2$ 0.0& 0.0& 0.0& 2723 # 29
30 30671 # 948.4# 966.3# 598.0# 247.7# 62.9$ 0.9$ 0.0& 0.0& 0.0& 2208 # 30
31 28700 # 932.6# 587.6# 59.0$ 0.6& 0.0& 1990 # 31
Mean 23229 $20502 $ 2653 # 1173 # 783.2 # 397.9 # 139.1 $ 19.57& 0.02& 0.00& 0.00& 3238 &
Median 4495 $14699 $ 2223 # 965.0 # 764.8 # 382.7 # 133.8 $ 14.78& 0.00& 0.00& 0.00& 2245 &
Maximum 211565 $ 74951 $ 5599 # 2639 # 1111 # 575.9# 244.0$ 55.3& 0.3& 0.0& 0.0& 13460 &
Minimum 820.1 $5368 $ 932.6 # 890.3 # 587.6 # 247.7 # 59.01 $ 0.567& 0.000& 0.000& 0.000& 0.000&
Total 720101 $574058 $ 82238 # 35185 # 24280 # 11937 # 4312 $ 606.6& 0.5& 0.0& 0.0&100391 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4255 & # ... Relative Uncertainty +/-15%
Ann. Median 441.3 & $ ... Relative Uncertainty +/-20%
Annual Total 1553111& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 211565 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 1823 #24279 # 3334 # 484.3 $ 142.7 $ 25.26$ 0.00& 0.00& 0.00& 0.00& 0.00& 133.0 $ 1
2 1615 #19995 # 6466 # 455.1 $ 138.8 $ 23.27$ 0.00& 0.00& 0.00& 0.00& 0.00& 111.6 $ 2
3 1403 #15344 #15509 # 430.7 $ 135.2 $ 21.56$ 0.00& 0.00& 0.00& 0.00& 0.00& 95.48$ 3
4 1508 # 9185 #10363 # 408.8 $ 131.6 $ 19.21$ 0.00& 0.00& 0.00& 0.00& 0.00& 80.29$ 4
5 17035 # 6193 # 6111 # 392.4 $ 127.3 $ 17.23$ 0.00& 0.00& 0.00& 0.00& 0.00& 70.05$ 5
6 28045 # 5001 # 5089 # 368.3 $ 122.6 $ 15.29$ 0.00& 0.00& 0.00& 0.00& 0.00& 68.14$ 6
7 68202 # 4309 # 5764 # 345.2 $ 117.3 $ 13.50$ 0.00& 0.00& 0.00& 0.00& 0.00& 5773 $ 7
8 35305 # 3782 # 5827 # 324.4 $ 112.1 $ 11.38$ 0.00& 0.00& 0.00& 0.00& 17.09& 2281 # 8
9 12343 # 3392 # 4968 # 309.4 $ 106.0 $ 9.32$ 0.00& 0.00& 0.00& 0.00& 889.0 $ 1212 $ 9
10 7750 # 3099 #27507 # 295.3 $ 101.7 $ 7.31$ 0.00& 0.00& 0.00& 0.00& 1830 # 860.1 $ 10
11 6400 # 2887 #69190 # 280.8 $ 97.48$ 5.72$ 0.00& 0.00& 0.00& 0.00& 3169 # 688.7 $ 11
12 5524 # 2653 #23477 # 270.9 $ 94.36$ 4.51$ 0.00& 0.00& 0.00& 0.00& 2054 # 799.5 $ 12
13 4723 # 2445 # 7525 # 262.3 $ 89.59$ 3.36$ 0.00& 0.00& 0.00& 0.00& 1334 $ 655.1 $ 13
14 3994 # 2297 # 5256 # 254.7 $ 83.23$ 2.40$ 0.00& 0.00& 0.00& 0.00& 940.4 $ 499.9 $ 14
15 3399 # 2195 # 4261 # 245.6 $ 76.76$ 1.63$ 0.00& 0.00& 0.00& 0.00& 753.9 $ 1068 $ 15
16 2888 # 2118 # 3539 # 238.3 $ 72.32$ 1.06$ 0.00& 0.00& 0.00& 0.00& 656.6 $ 6774 # 16
17 2469 # 2023 # 2960 # 230.2 $ 69.30$ 0.61& 0.00& 0.00& 0.00& 0.00& 642.2 $ 3711 # 17
18 5756 # 1919 # 2516 # 226.4 $ 66.80$ 0.31& 0.00& 0.00& 0.00& 0.00& 577.3 $ 2300 # 18
19 19591 # 1824 # 2146 # 213.0 $ 64.68$ 0.10& 0.00& 0.00& 0.00& 0.00& 527.4 $ 2015 # 19
20 45150 # 1732 # 1815 # 207.6 $ 62.32$ 0.01& 0.00& 0.00& 0.00& 0.00& 489.1 $ 2786 # 20
21 15909 # 1638 # 1547 # 200.1 $ 59.19$ 0.00& 0.00& 0.00& 0.00& 0.00& 453.7 $14333 # 21
22 7812 # 1815 # 1356 # 192.8 $ 54.59$ 0.00& 0.00& 0.00& 0.00& 0.00& 417.1 $40715 # 22
23 6490 # 1631 # 1186 $ 187.5 $ 50.47$ 0.00& 0.00& 0.00& 0.00& 0.00& 382.9 $ 7720 # 23
24 5013 # 2248 # 1011 $ 179.6 $ 46.32$ 0.00& 0.00& 0.00& 0.00& 0.00& 357.4 $10298 # 24
25 4596 # 2039 # 888.3 $ 173.3 $ 42.22$ 0.00& 0.00& 0.00& 0.00& 0.00& 325.8 $12304 # 25
26 4206 # 1796 # 782.6 $ 166.4 $ 38.29$ 0.00& 0.00& 0.00& 0.00& 0.00& 296.9 $ 7987 # 26
27 5673 # 1934 # 703.0 $ 160.9 $ 34.96$ 0.00& 0.00& 0.00& 0.00& 0.00& 259.0 $ 4665 # 27
28 9687 # 2736 # 644.3 $ 155.1 $ 31.95$ 0.00& 0.00& 0.00& 0.00& 0.00& 221.5 $ 3483 # 28
29 12117 # 594.6 $ 150.6 $ 30.29$ 0.00& 0.00& 0.00& 0.00& 0.00& 186.6 $ 3283 # 29
30 24516 # 553.7 $ 146.5 $ 28.61$ 0.00& 0.00& 0.00& 0.00& 0.00& 158.2 $ 2425 # 30
31 16892 # 512.0 $ 26.81$ 0.00& 0.00& 0.00& 1917 # 31
Mean 12511 # 4733 # 7207 $ 265.2 $ 79.22$ 6.10& 0.00& 0.00& 0.00& 0.00& 564.6 & 4552 $
Median 6400 #2371 #3334 $ 241.9 $ 72.32 $ 1.349& 0.000& 0.000& 0.000& 0.000& 370.1 &2281 $
Maximum 68202 #24279 #69190 $ 484.3 $ 142.7 $ 25.26& 0.00& 0.00& 0.00& 0.00& 3169 &40715 $
Minimum 1403 #1631 # 512.0 $ 146.5 $ 26.81 $ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 68.14 $
Total 387833 #132510 #223402 $ 7956 $ 2456 $ 183.0& 0.0& 0.0& 0.0& 0.0& 16939 &141110 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 2500 & # ... Relative Uncertainty +/-15%
Ann. Median 89.59 & $ ... Relative Uncertainty +/-20%
Annual Total 912390 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 69190 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 1578 # 4847 # 3862 # 874.0 $ 268.0 $ 240.3 $ 7.57$ 0.00& 0.00& 0.00& 0.00& 0.00& 1
2 1396 # 3609 # 2495 # 804.3 $ 260.9 $ 228.4 $ 5.68$ 0.00& 0.00& 0.00& 0.00& 0.00& 2
3 1261 # 2673 # 1881 # 1064 $ 253.7 $ 216.6 $ 4.08$ 0.00& 0.00& 0.00& 0.00& 0.00& 3
4 1140 $ 2251 # 1546 # 953.4 $ 245.4 $ 204.4 $ 2.75$ 0.00& 0.00& 0.00& 0.00& 0.00& 4
5 980.5 $ 2695 # 1338 # 817.4 $ 243.8 $ 192.6 $ 1.76$ 0.00& 0.00& 0.00& 0.00& 0.00& 5
6 864.3 $ 5527 # 1278 # 734.1 $ 305.4 $ 181.0 $ 0.98$ 0.00& 0.00& 0.00& 0.00& 0.00& 6
7 811.9 $ 4872 # 5585 # 672.3 $ 519.5 $ 169.7 $ 0.43& 0.00& 0.00& 0.00& 0.00& 0.00& 7
8 787.1 $ 3296 # 5090 # 626.6 $ 1832 # 158.7 $ 0.09& 0.00& 0.00& 0.00& 0.00& 0.00& 8
9 767.9 $ 2330 # 3711 # 584.5 $ 1710 # 146.1 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 9
10 706.0 $ 1827 # 3193 # 549.6 $ 1532 # 135.5 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 10
11 1192 $ 1512 # 1964 # 520.5 $ 1101 $ 126.6 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 11
12 1263 # 1301 $ 2042 # 494.6 $ 893.9 $ 116.1 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 12
13 2173 # 1131 $ 1672 # 474.1 $ 778.7 $ 106.5 $ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 13
14 2737 # 981.2 $ 1644 # 453.4 $ 695.2 $ 98.35$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 14
15 3456 # 886.0 $12251 # 434.4 $ 630.1 $ 90.93$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 15
16 4033 # 805.9 $ 5484 # 416.3 $ 579.6 $ 84.17$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 16
17 12921 # 1413 $ 3489 # 400.0 $ 537.7 $ 77.47$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 17
18 10833 # 5580 # 9857 # 385.5 $ 500.5 $ 69.41$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 18
19 10500 # 3054 # 3884 # 370.4 $ 468.4 $ 61.79$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 19
20 14502 # 1988 # 2345 # 358.3 $ 439.4 $ 55.55$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 20
21 7822 # 1953 # 1716 # 348.2 $ 411.7 $ 49.57$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 21
22 7676 # 3426 # 3373 # 336.7 $ 385.8 $ 44.10$ 0.00& 0.00& 0.00& 0.00& 0.00& 5106 & 22
23 21806 # 2617 # 7363 # 324.3 $ 362.7 $ 38.66$ 0.00& 0.00& 0.00& 0.00& 0.00&16394 # 23
24 9440 # 2232 # 7675 # 313.7 $ 346.2 $ 33.73$ 0.00& 0.00& 0.00& 0.00& 0.00&13855 # 24
25 8823 # 1609 # 6822 # 305.2 $ 329.8 $ 29.14$ 0.00& 0.00& 0.00& 0.00& 0.00&17110 # 25
26 11221 # 1331 # 3922 # 298.4 $ 313.9 $ 24.39$ 0.00& 0.00& 0.00& 0.00& 0.00&12297 # 26
27 7330 # 1256 # 2438 # 292.2 $ 300.2 $ 19.40$ 0.00& 0.00& 0.00& 0.00& 0.00&11501 # 27
28 5820 # 7231 # 1805 # 286.4 $ 286.1 $ 15.45$ 0.00& 0.00& 0.00& 0.00& 0.00&11199 # 28
29 7489 # 7811 # 1419 # 279.8 $ 274.4 $ 12.05$ 0.00& 0.00& 0.00& 0.00& 0.00& 6400 # 29
30 7966 # 1184 $ 273.2 $ 262.8 $ 9.50$ 0.00& 0.00& 0.00& 0.00& 0.00& 4730 # 30
31 6532 # 1004 $ 251.6 $ 0.00& 0.00& 0.00& 3535 # 31
Mean 5672 $2829 $3656 $ 501.5 $ 558.7 $ 101.2 $ 0.753& 0.000& 0.000& 0.000& 0.000&3294 &
Median 4033 $2251 $2495 $ 425.3 $ 385.8 $ 87.55 $ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Maximum 21806 $ 7811 $12251 $ 1064 $ 1832 $ 240.3 $ 7.57& 0.00& 0.00& 0.00& 0.00&17110 &
Minimum 706.0 $ 805.9 $1004 $ 273.2 $ 243.8 $ 9.500$ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 175826 $ 82045 $113334 $ 15046 $ 17321 $ 3036 $ 23.4& 0.0& 0.0& 0.0& 0.0&102126 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 1390 & # ... Relative Uncertainty +/-15%
Ann. Median 46.84 & $ ... Relative Uncertainty +/-20%
Annual Total 508758 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 21806 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 2768 # 11961 # 5909 # 4065 # 458.4# 153.8# 58.7$ 9.4$ 0.0& 0.0& 0.0& 0.0& 1
2 2334 # 10225 # 5145 # 3087 # 437.7# 148.0# 56.0$ 8.9$ 0.0& 0.0& 0.0& 0.0& 2
3 2003 # 9764 # 4632 # 2742 # 421.5# 142.3# 53.5$ 8.3$ 0.0& 0.0& 0.0& 0.0& 3
4 3094 # 8028 # 4228 # 2392 # 405.9# 136.6# 51.0$ 7.7$ 0.0& 0.0& 0.0& 0.0& 4
5 20936 # 7005 # 3990 # 1942 # 392.3# 131.7# 48.6$ 7.2$ 0.0& 0.0& 0.0& 0.0& 5
6 23649 # 7944 # 3762 # 1638 # 383.6# 126.3# 46.8$ 6.7$ 0.0& 0.0& 0.0& 38.7& 6
7 7851 # 17223 # 6951 # 1334 # 376.3# 120.0# 44.7$ 6.2$ 0.0& 0.0& 0.0& 21.2& 7
8 4980 # 23745 #223393 $ 1174 # 365.4# 115.6# 42.4$ 5.8$ 0.0& 0.0& 0.0& 0.0& 8
9 3808 # 27175 #109228 $ 1053 # 352.2# 112.3# 40.1$ 5.3$ 0.0& 0.0& 0.0& 0.0& 9
10 4370 # 72427 $ 51310 # 939.4# 340.2# 109.3$ 37.5$ 4.9$ 0.0& 0.0& 0.0& 0.0& 10
11 17236 # 55157 $ 43485 # 853.6# 328.3# 106.5$ 35.6$ 4.5$ 0.0& 0.0& 0.0& 0.0& 11
12 20215 # 67479 $ 74035 $ 785.9# 317.2# 103.8$ 33.8$ 4.1$ 0.0& 0.0& 0.0& 9.8& 12
13 9720 #130190 $ 23377 # 735.1# 306.9# 101.5$ 32.0$ 3.7$ 0.0& 0.0& 0.0& 1.2& 13
14 169166 $ 54829 # 13739 # 691.3# 297.1# 99.5$ 30.0$ 3.1$ 0.0& 0.0& 0.0& 0.0& 14
15 203640 $ 53130 # 10292 # 656.7# 288.1# 96.9$ 27.5$ 2.7$ 0.0& 0.0& 0.0& 0.0& 15
16 44147 $ 80531 $ 12461 # 702.7# 279.4# 94.2$ 25.1$ 2.4$ 0.0& 0.0& 0.0& 0.0& 16
17 67770 # 34759 # 9172 # 662.4# 271.0# 91.3$ 22.9$ 2.0$ 0.0& 0.0& 0.0& 0.0& 17
18 59955 # 21029 # 6616 # 631.3# 262.7# 88.0$ 21.6$ 1.7$ 0.0& 0.0& 0.0& 0.0& 18
19 31660 # 17406 # 4914 # 611.4# 254.8# 84.5$ 20.6$ 1.5$ 0.0& 0.0& 0.0& 0.0& 19
20 29506 # 16095 # 4416 # 596.9# 247.2# 81.9$ 19.5$ 1.3$ 0.0& 0.0& 0.0& 0.0& 20
21 23848 # 14977 # 3935 # 708.0# 239.7# 81.1$ 18.7$ 1.1$ 0.0& 0.0& 0.0& 0.0& 21
22 24777 # 9513 # 3783 # 614.9# 231.3# 79.8$ 17.9$ 0.9$ 0.0& 0.0& 0.0& 9.7& 22
23 12044 # 7634 # 3382 # 569.8# 224.7# 78.1$ 17.1$ 0.7$ 0.0& 0.0& 0.0& 309.0& 23
24 19029 # 6718 # 3094 # 543.5# 217.4# 76.4$ 16.2$ 0.6& 0.0& 0.0& 0.0& 187.5# 24
25 29828 # 5576 # 3783 # 525.9# 208.9# 74.8$ 15.2$ 0.4& 0.0& 0.0& 0.0& 68.2$ 25
26 29924 # 5734 # 4103 # 510.0# 201.2# 73.1$ 14.1$ 0.2& 0.0& 0.0& 0.0& 20.1$ 26
27 24333 # 6105 # 3901 # 523.6# 193.2# 71.3$ 13.2$ 0.1& 0.0& 0.0& 0.0& 4.0$ 27
28 23100 # 8704 # 5095 # 557.3# 185.7# 69.5$ 12.4$ 0.1& 0.0& 0.0& 0.0& 0.1& 28
29 14026 # 16238 # 524.1# 178.2# 66.4$ 11.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 29
30 10520 # 7033 # 485.7# 169.6# 62.3$ 11.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 30
31 10897 # 5049 # 161.4# 10.5$ 0.0& 0.0& 0.0& 31
Mean 30682 $28252 $21950 $ 1095 # 290.2 # 99.22$ 29.23$ 3.27& 0.00& 0.00& 0.00& 21.60&
Median 20215 $15536 $ 5145 $ 697.0 # 279.4 # 95.52$ 25.08$ 2.38& 0.00& 0.00& 0.00& 0.00&
Maximum 203640 $130190 $223393 $ 4065 # 458.4# 153.8$ 58.7$ 9.4& 0.0& 0.0& 0.0& 309.0&
Minimum 2003 $5576 $3094 $ 485.7 # 161.4 # 62.29 $ 10.49 $ 0.000& 0.000& 0.000& 0.000& 0.000&
Total 951134 $791058 $680451 $ 32858 # 8997 # 2977 $ 906.2$ 101.4& 0.0& 0.0& 0.0& 669.5&
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 6765 & # ... Relative Uncertainty +/-15%
Ann. Median 66.44 & $ ... Relative Uncertainty +/-20%
Annual Total 2469152& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 223393 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge Year 2018
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 0.0& 44215 # 1372 # 202.5# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1
2 0.0& 38355 # 3028 # 273.5# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2
3 0.0& 22304 # 3100 # 327.9# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 3
4 0.0& 10549 # 2390 # 272.5# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 4
5 150.0& 5945 # 1925 # 159.5# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 5
6 877.5# 10893 # 3287 # 106.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 6
7 551.1# 13672 # 22748 # 65.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 7
8 349.6# 8102 # 13603 # 40.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 8
9 216.9# 4520 # 4996 # 25.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 9
10 124.1$ 6569 # 3364 # 14.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 10
11 62.0$ 7201 # 2635 # 6.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 11
12 32.7$ 4529 # 2249 # 2.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 12
13 17.7$ 3446 # 2077 # 1.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 13
14 11.4$ 4501 # 1946 # 0.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 14
15 7.8$ 8001 # 1852 # 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 15
16 6.0$ 7143 # 1370 # 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 16
17 5.4$ 4433 # 1042 # 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 17
18 11.6$ 3536 # 864.3# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 18
19 2741 $ 3020 # 747.1# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 19
20 678.5# 2878 # 652.3# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 20
21 2251 # 3671 # 558.2# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 21
22 1418 # 3361 # 472.4# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 22
23 2038 # 2577 # 379.0# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 23
24 1258 # 2094 # 310.2# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 24
25 792.0# 1818 # 268.7# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 25
26 499.0# 1655 # 238.4# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 26
27 358.9# 1433 # 216.3# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 27
28 517.5# 1432 # 198.7# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 28
29 10862 # 184.6# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 29
30 153849 $ 176.5# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 30
31 59632 $ 175.5# 0.0& 0.0& 0.0& 0.0& 0.0& 31
Mean 7720 &8280 #2530 # 49.96 & 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Median 349.6 &4510 #1370 # 0.001& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Maximum 153849 & 44215 # 22748 # 327.9& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0&
Minimum 0.000&1432 # 175.5 # 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 239318 &231853 # 78427 # 1499 & 0.0& 0.0& 0.0& 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 1510 & # ... Relative Uncertainty +/-15%
Ann. Median 0.000& $ ... Relative Uncertainty +/-20%
Annual Total 551097 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 153849 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 2230 & 2068 # 428.8 # 254.4 # 20.35$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 1
2 1076 # 1404 # 402.5 # 237.7 # 18.10$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 2
3 749.5 # 1735 # 369.3 # 223.1 # 15.68$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 3
4 8480 # 1427 # 462.7 # 205.2 # 13.47$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 4
5 25280 # 3037 # 579.2 # 189.5 # 11.36$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 5
6 34835 # 1893 # 511.8 # 175.9 # 9.62$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 6
7 46469 # 1814 # 438.2 # 165.1 # 8.18$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 7
8 6136 # 999.6 # 397.8 # 155.6 # 6.52$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 8
9 2510 # 4721 # 360.8 # 147.1 # 4.63$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 9
10 3120 # 1742 # 324.0 # 137.6 # 3.27$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 10
11 9388 # 1211 # 302.7 # 127.8 # 2.56$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 11
12 3195 # 720.7 # 281.1 # 115.7 # 1.66$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 12
13 2289 # 555.4 # 260.9 # 105.1 $ 0.87$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 13
14 1538 # 425.7 # 255.5 # 95.51$ 0.36& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 14
15 1220 # 268.0 # 284.6 # 86.07$ 0.09& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 15
16 2887 # 188.0 # 700.2 # 80.25$ 0.01& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 16
17 1981 # 144.0 # 907.4 # 74.54$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 17
18 1285 # 105.3 $ 819.4 # 69.64$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 18
19 1175 # 81.48$ 759.1 # 66.90$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 19
20 880.0 # 59.72$ 518.2 # 63.40$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 20
21 680.4 # 42.42$ 408.0 # 58.14$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 21
22 1161 # 162.0 $ 354.3 # 53.04$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 22
23 1243 # 146.0 # 347.7 # 47.74$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 23
24 1330 # 663.9 # 411.3 # 42.11$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 24
25 876.0 # 803.8 # 3633 # 37.87$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 25
26 540.2 # 586.7 # 1260 # 34.63$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 26
27 372.7 # 484.2 # 612.8 # 32.45$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 27
28 244.9 # 471.0 # 463.4 # 29.55$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 28
29 6521 # 365.6 # 26.18$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 29
30 3944 # 320.3 # 23.94$ 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 30
31 2866 # 283.9 # 0.00& 0.00& 0.00& 0.00& 0.00& 31
Mean 5694 & 998.6 $ 575.0 # 105.4 $ 3.765& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Median 1981 & 625.3 $ 408.0 # 83.16 $ 0.005& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Maximum 46469 & 4721 $ 3633 # 254.4 $ 20.35& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00&
Minimum 244.9 & 42.42 $ 255.5 # 23.94 $ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 176501 & 27961 $ 17824 # 3162 $ 116.7& 0.0& 0.0& 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 618.0 & # ... Relative Uncertainty +/-15%
Ann. Median 0.000& $ ... Relative Uncertainty +/-20%
Annual Total 225565 & & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 46469 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 0.0& 9860 # 7078 # 3.6$ 0.0& 139.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1
2 0.0& 15022 #249238 $ 2.7$ 0.0& 69.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2
3 0.0& 9432 #248569 $ 2.1$ 0.0& 37.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 3
4 2596 & 38146 # 45091 # 1.5$ 0.0& 22.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 4
5 13164 # 47221 # 20164 # 1.1$ 0.0& 12.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 5
6 7727 # 15580 # 12167 # 1.1$ 0.0& 8.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 6
7 2549 # 6102 # 8122 # 1.5$ 0.0& 4.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 7
8 1642 # 3547 # 5508 # 111.4$ 0.0& 2.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 8
9 890.1# 3417 # 3554 # 48.7$ 0.0& 1.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 21700 & 9
10 3244 # 5179 # 2057 # 27.4$ 0.0& 0.5& 0.0& 0.0& 0.0& 0.0& 0.0& 45509 # 10
11 3284 # 35731 # 1014 # 17.9$ 0.0& 0.2& 0.0& 0.0& 0.0& 0.0& 0.0& 37068 $ 11
12 2293 # 30109 # 522.6# 12.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 69999 $ 12
13 1021 # 67427 $ 323.2# 8.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 21319 # 13
14 869.0# 24555 # 210.5# 5.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 15084 # 14
15 2863 # 79443 $ 138.5# 4.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 6676 # 15
16 1930 # 21082 # 98.6$ 3.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 1699 # 16
17 918.6# 5515 # 77.4$ 2.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 970.5# 17
18 2010 # 3603 # 59.2$ 1.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 778.1# 18
19 1221 # 4062 # 47.1$ 1.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 622.8# 19
20 1108 # 3342 # 40.0$ 0.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 8841 # 20
21 5407 # 2856 # 36.0$ 0.6& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 59723 $ 21
22 20203 # 2456 # 31.4$ 0.5& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0&112327 $ 22
23 11113 # 1681 # 27.0$ 0.3& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 44037 # 23
24 4268 # 1212 # 22.8$ 0.2& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 16969 # 24
25 2329 # 901.8# 19.1$ 0.1& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 16479 # 25
26 2667 # 769.6# 15.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 12371 # 26
27 2244 # 657.2# 13.1$ 0.0& 5.1& 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 12755 # 27
28 1814 # 545.0# 11.0$ 0.0& 50.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 11967 # 28
29 1174 # 470.7# 8.7$ 0.0& 169.0# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 12116 # 29
30 1409 # 6.6$ 0.0& 539.1# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 18478 # 30
31 2559 # 4.9$ 297.6# 0.0& 0.0& 0.0& 9545 # 31
Mean 3371 &15170 $19493 $ 8.66& 34.22& 9.96& 0.00& 0.00& 0.00& 0.00& 0.00&17969 &
Median 2244 & 5179 $ 98.64$ 1.53& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00& 0.00&11967 &
Maximum 20203 & 79443 $249238 $ 111.4& 539.1& 139.7& 0.0& 0.0& 0.0& 0.0& 0.0&112327 &
Minimum 0.000& 470.7 $ 4.919$ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 104516 &439923 $604276 $ 259.8& 1061 & 298.8& 0.0& 0.0& 0.0& 0.0& 0.0&557035 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4665 & # ... Relative Uncertainty +/-15%
Ann. Median 0.000& $ ... Relative Uncertainty +/-20%
Annual Total 1707370& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 249238 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 4424 # 13271 # 1932 # 2020 # 42.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 10.8$ 1
2 3077 # 12455 # 1707 # 1619 # 34.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 7.0$ 2
3 2299 # 7927 # 1508 # 1281 # 27.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 5.1$ 3
4 1787 # 19457 # 1304 # 1115 # 20.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 3.6$ 4
5 1394 # 22090 # 1672 # 953.5# 14.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 835.1& 2.4$ 5
6 1391 # 7207 # 1345 # 873.4# 11.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 4016 # 1.4$ 6
7 1830 # 4248 # 1089 # 805.4# 8.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 5681 # 0.8& 7
8 1549 # 3141 # 954.2# 738.5# 5.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 2588 # 0.3& 8
9 996.8# 5686 # 1955 # 665.9# 3.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 1792 # 0.0& 9
10 764.5#116635 $ 1854 # 594.6# 2.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 2434 # 0.0& 10
11 607.8#184209 $ 1831 # 541.7# 1.2$ 0.0& 0.0& 0.0& 0.0& 0.0& 2211 # 0.0& 11
12 536.1# 43271 $ 2171 # 479.6# 0.5& 0.0& 0.0& 0.0& 0.0& 0.0& 1063 # 0.0& 12
13 468.6# 16255 # 2645 # 436.4# 0.1& 0.0& 0.0& 0.0& 0.0& 0.0& 653.9# 0.0& 13
14 411.1# 9499 # 8004 # 397.8# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 470.6# 0.0& 14
15 359.2# 24794 # 44561 $ 358.3# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 373.5# 0.0& 15
16 326.2# 88995 $ 63116 $ 327.6# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 301.4# 0.0& 16
17 299.3# 49428 # 17782 # 298.3# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 246.0# 0.0& 17
18 274.3# 19401 # 8708 # 267.9# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 184.6# 0.0& 18
19 246.6# 9105 # 5166 # 239.1# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 149.9# 0.0& 19
20 219.0# 5722 # 13537 # 212.9# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 129.2# 0.0& 20
21 203.1# 4108 # 55717 # 186.5# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 110.3$ 0.0& 21
22 16357 # 3375 # 33847 # 161.3# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 86.5$ 0.0& 22
23 36524 # 2814 # 11980 # 140.0# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 69.3$ 0.0& 23
24 10118 # 2542 # 7335 # 123.7# 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 56.1$ 0.0& 24
25 11283 # 2579 # 5694 # 109.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 46.3$ 17.5& 25
26 5941 # 2532 # 4423 # 93.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 36.8$ 25.5& 26
27 23352 # 2303 # 3750 # 80.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 30.1$ 0.0& 27
28 15547 # 2139 # 3290 # 69.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 23.4$ 0.0& 28
29 28334 # 2913 # 58.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 19.3$ 0.0& 29
30 34862 # 2483 # 49.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 15.5$ 0.0& 30
31 32088 # 2305 # 0.0& 0.0& 0.0& 0.0& 2031 & 31
Mean 7673 #24471 $10212 $ 509.9 $ 5.51& 0.00& 0.00& 0.00& 0.00& 0.00& 787.4 & 67.91&
Median 1549 #8516 $2913 $ 343.0 $ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 139.5 & 0.000&
Maximum 36524 #184209 $ 63116 $ 2020 $ 42.3& 0.0& 0.0& 0.0& 0.0& 0.0& 5681 & 2031 &
Minimum 203.1 #2139 $ 954.2 $ 49.79 $ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000&
Total 237870 #685186 $316579 $ 15297 $ 170.9& 0.0& 0.0& 0.0& 0.0& 0.0& 23622 & 2105 &
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 3509 & # ... Relative Uncertainty +/-15%
Ann. Median 0.000& $ ... Relative Uncertainty +/-20%
Annual Total 1280830& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 184209 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 1087 #120439 $ 161.8$ 89.6$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 0.6& 3204 # 1
2 538.1# 37664 # 135.0$ 71.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 1293 & 0.1& 2314 # 2
3 409.6# 21474 # 114.3$ 57.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 1694 # 0.0& 1981 # 3
4 340.1# 11881 # 96.9$ 46.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 1532 # 0.0& 1579 # 4
5 435.9# 6556 # 85.0$ 38.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 907.4# 0.0& 1209 # 5
6 239.3# 4318 # 74.1$ 33.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 611.5# 0.0& 999.4# 6
7 170.5# 14434 # 64.5$ 28.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 479.2# 0.0& 856.8# 7
8 138.1# 8675 # 57.2$ 23.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 387.1# 0.0& 734.7# 8
9 121.4# 14567 # 51.7$ 20.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 323.3# 0.0& 621.4$ 9
10 98.1$ 13622 # 49.9$ 16.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 258.0# 0.0& 573.2$ 10
11 83.2$ 6537 # 45.5$ 14.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 213.4# 0.0& 587.9$ 11
12 151.9$ 4008 # 40.8$ 11.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 181.7# 0.0& 514.4$ 12
13 74.0$ 3692 # 36.5$ 9.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 152.5# 0.0& 392.3$ 13
14 47.7$ 2995 # 41.0$ 8.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 126.8# 0.0& 311.6$ 14
15 33.1$ 2465 # 38.9$ 7.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 105.1$ 0.0& 259.1$ 15
16 73.3$ 2302 # 31.3$ 5.4$ 0.0& 0.0& 0.0& 0.0& 0.0& 83.1$ 0.0& 209.2$ 16
17 17003 # 2076 # 26.5$ 3.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 63.1$ 0.0& 275.5$ 17
18 29194 # 1811 # 27.6$ 2.7$ 0.0& 0.0& 0.0& 0.0& 0.0& 50.5$ 0.0& 225.4$ 18
19 4010 # 1451 # 43.1$ 1.9$ 0.0& 0.0& 0.0& 0.0& 0.0& 42.7$ 0.0& 161.5$ 19
20 2166 # 1170 # 43.3$ 1.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 34.4$ 0.0& 117.5$ 20
21 2966 # 954.5# 128.5$ 0.7& 0.0& 0.0& 0.0& 0.0& 0.0& 27.2$ 0.0& 147.0$ 21
22 2435 # 792.9# 107.2$ 0.3& 0.0& 0.0& 0.0& 0.0& 0.0& 22.0$ 0.0& 4581 $ 22
23 2175 # 659.5# 84.1$ 0.1& 0.0& 0.0& 0.0& 0.0& 0.0& 18.8$ 65777 & 13520 # 23
24 2561 # 529.0# 68.0$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 15.1$145299 $ 3408 # 24
25 3266 # 423.3$ 57.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 11.1$144577 $ 1949 # 25
26 5525 # 325.0$ 146.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 8.6$ 79080 $ 1262 # 26
27 6164 # 259.4$ 150.3$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 6.6$122892 $ 910.9# 27
28 63746 $ 205.8$ 391.5$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 5.1$ 29488 # 934.1# 28
29 96066 $ 262.8$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 3.2$ 11414 # 26206 # 29
30 104248 $ 160.1$ 0.0& 0.0& 0.0& 0.0& 0.0& 0.0& 2.0$ 6471 # 96937 $ 30
31 228194 $ 114.6$ 0.0& 0.0& 0.0& 1.2$ 73445 # 31
Mean 18508 $10225 $ 94.69$ 16.42& 0.00& 0.00& 0.00& 0.00& 0.00& 279.4 &20167 & 7756 $
Median 1087 $2730 $ 67.99 $ 6.231& 0.000& 0.000& 0.000& 0.000& 0.000& 63.09 & 0.000& 910.9 $
Maximum 228194 $120439 $ 391.5$ 89.6& 0.0& 0.0& 0.0& 0.0& 0.0& 1694 &145299 & 96937 $
Minimum 33.14 $ 205.8 $ 26.54 $ 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 0.000& 117.5 $
Total 573760 $286287 $ 2935 $ 492.7& 0.0& 0.0& 0.0& 0.0& 0.0& 8660 &605001 &240426 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4706 & # ... Relative Uncertainty +/-15%
Ann. Median 0.106& $ ... Relative Uncertainty +/-20%
Annual Total 1717561& & ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 228194 & 0.000&
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 342950 $ 60709 # 1754 # 170.8# 352.4# 80.4$ 27.6$ [ ]N [ ]N [ ]N [ ]N [ ]N 1
2 359757 $ 57169 # 2968 # 165.5# 338.5# 76.5$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 2
3 292795 $ 18407 # 3278 # 158.8# 325.1# 74.3$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 3
4 115429 $ 9068 # 2443 # 312.9# 312.8# 71.1$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 4
5 51448 # 6316 # 1736 # 1732 # 299.8# 67.6$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 5
6 35045 # 5127 # 1349 # 1400 # 282.1# 65.1$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 6
7 33645 # 4428 # 1601 # 17276 # 269.7# 63.1$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 7
8 24337 # 3985 # 1063 # 14147 # 256.4# 61.4$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 8
9 15766 # 3279 # 863.5# 2863 # 244.5# 59.2$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 9
10 11974 # 2657 # 755.0# 1710 # 233.6# 56.4$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 10
11 8712 # 2442 # 668.9# 1086 # 220.8# 54.0$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 11
12 5982 # 2206 # 608.2# 846.2# 210.3# 52.1$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 12
13 4294 # 1977 # 558.9# 2269 # 198.3# 50.1$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 13
14 3422 # 1745 # 513.1# 9193 # 188.5# 48.3$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 14
15 3333 # 1523 # 474.9# 4524 # 179.5# 46.5$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 15
16 3492 # 1305 # 434.8# 2099 # 171.7# 45.2$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 16
17 3058 # 1172 # 402.7# 1314 # 163.3# 44.4$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 17
18 6360 # 1076 # 363.9# 972.3# 155.1# 42.9$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 18
19 11609 # 1000 # 333.5# 769.8# 147.4# 41.1$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 19
20 8611 # 3678 # 315.8# 613.6# 140.3# 39.8$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 20
21 35984 # 10738 # 295.5# 551.2# 132.8# 38.1$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 21
22 9416 # 7509 # 272.0# 509.9# 126.8# 37.0$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 22
23 5849 # 5279 # 254.9# 479.8# 120.7# 36.4$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 23
24 4317 # 4662 # 241.9# 457.1# 113.8# 35.5$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 24
25 2709 # 3621 # 233.2# 434.7# 108.5$ 34.4$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 25
26 1801 # 2920 # 222.4# 415.5# 103.1$ 33.7$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 26
27 2074 # 2390 # 210.6# 400.7# 98.0$ 33.4$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 27
28 60874 # 1979 # 198.4# 388.4# 94.1$ 32.6$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 28
29 61555 # 190.8# 379.1# 90.4$ 31.2$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 29
30 61647 # 183.2# 363.8# 86.5$ 29.5$ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 30
31 70268 $ 175.8# 82.5$ [ ]N [ ]N [ ]N [ ]N 31
Mean 53500 $ 8156 # 805.3 # 2267 # 188.6 $ 49.38$ 27.59$ [ ]N [ ]N [ ]N [ ]N [ ]N
Median 11609 $ 3450 # 434.8 # 691.7 # 171.7 $ 45.87$ 27.59$ [ ]N [ ]N [ ]N [ ]N [ ]N
Maximum 359757 $ 60709 # 3278 # 17276 # 352.4$ 80.4$ 27.6$ [ ]N [ ]N [ ]N [ ]N [ ]N
Minimum 1801 $1000 # 175.8 # 158.8 # 82.53 $ 29.49 $ 27.59 $ [ ]N [ ]N [ ]N [ ]N [ ]N
Total 1658513$ 228369# 24963# 68002# 5848$ 1481$ 28$ [ ]N [ ]N [ ]N [ ]N [ ]N
Missing Days 0 0 0 0 0 0 30 31 30 31 30 31
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 10919 $ # ... Relative Uncertainty +/-15%
Ann. Median 494.8 $ $ ... Relative Uncertainty +/-20%
Annual Total 1987204$ N ... Not Rated
Missing Days 183
Maximum Minimum
Daily 359757 $ 27.59 $
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 [ ]N 1993 # 2761 # 3361 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 1
2 [ ]N 1661 # 7610 # 2555 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 2
3 [ ]N 1340 # 13094 # 2040 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 3
4 [ ]N 1001 # 16970 # 1708 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 4
5 [ ]N 818.3# 24111 # 1463 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 5
6 [ ]N 736.2# 16349 # 1229 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 968.8# 6
7 [ ]N 897.4# 8330 # 1045 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 902.3# 7
8 [ ]N 2150 # 7222 # 897.5# [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 8
9 [ ]N 2343 # 7141 # 765.0# [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 9
10 [ ]N 2557 # 35849 $ 674.8# [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 10
11 [ ]N 1656 # 21320 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 11
12 [ ]N 1108 # 80614 $ [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 12
13 [ ]N 1132 # 30453 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 13
14 [ ]N 16678 # 9853 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 3946 # 14
15 [ ]N 6325 # 6705 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 2863 # 15
16 [ ]N 2718 # 5231 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 1670 # 16
17 [ ]N 1852 # 4014 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 1470 # 17
18 52508 $ 1193 # 4507 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 977.2# 18
19 12101 # 869.6# 5221 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 19
20 82351 $ 723.6# 3640 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 20
21 63530 $ 72246 $ 2976 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 21
22 199766 $109243 $ 2479 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 22
23 138947 $ 19603 # 2401 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 23
24 29837 # 7396 # 7067 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 24
25 27545 # 4930 # 29387 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 25
26 6851 # 10310 # 9306 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 26
27 9176 # 6360 # 5066 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 27
28 8293 # 4292 # 3860 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 28
29 4922 # 3130 # 3186 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 29
30 3395 # 2970 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 1612 # 30
31 2462 # 4679 # [ ]N [ ]N [ ]N [ ]N [ ]N 31
Mean 45835 $ 9906 $12399 $ 1574 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 1801 #
Median 19823 $ 2150 $ 7067 $ 1346 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 1541 #
Maximum 199766 $109243 $ 80614 $ 3361 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 3946 #
Minimum 2462 $ 723.6 $2401 $ 674.8 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 902.3 #
Total 641685$ 287261$ 384373$ 15738# [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 14409#
Missing Days 17 0 0 20 31 30 31 31 30 31 30 23
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 14603 $ # ... Relative Uncertainty +/-15%
Ann. Median 3903 $ $ ... Relative Uncertainty +/-20%
Annual Total 1343467$ N ... Not Rated
Missing Days 274
Maximum Minimum
Daily 199766 $ 674.8 $
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge 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 [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 1
2 [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 2
3 [ ]N 1487 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 3
4 [ ]N 2327 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 4
5 [ ]N 8521 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 5
6 [ ]N 3961 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 6
7 [ ]N 2283 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 7
8 [ ]N 2896 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 8
9 [ ]N 2326 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 9
10 [ ]N 1246 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 10
11 [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 11
12 [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 12
13 [ ]N 832.4 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 13
14 1399 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 14
15 [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 15
16 [ ]N33660 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 16
17 28446 # 6055 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 17
18 6812 # 3259 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 18
19 3056 # 2253 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 19
20 1983 # 1674 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 20
21 1488 # 1278 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 21
22 954.7 # 934.7 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 22
23 966.5 # 735.5 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 23
24 [ ]N [ ]N 1690 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 24
25 [ ]N [ ]N 1678 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 25
26 [ ]N [ ]N 1245 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 26
27 [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 27
28 1383 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 28
29 1088 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 29
30 1372 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 30
31 990.2 # [ ]N [ ]N [ ]N [ ]N [ ]N 5113 # 31
Mean 4162 #4455 #1537 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N5113 #
Median 1391 #2283 #1678 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N5113 #
Maximum 28446 #33660 # 1690 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 5113 #
Minimum 954.7 # 735.5 #1245 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N5113 #
Total 49938 #75727 # 4612 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N [ ]N 5113 #
Missing Days 19 11 28 30 31 30 31 31 30 31 30 30
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 4103 # # ... Relative Uncertainty +/-15%
Ann. Median 1678 # N ... Not Rated
Annual Total 135391 #
Missing Days 332
Maximum Minimum
Daily 33660 # 735.5 #
Department of Water and Environmental Regulation HYDAY V146 Output 09/08/2026
Site 802156 Margaret River - Margaret Gorge Year 2026
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 14966 # 2768 # 20910 # 925.8# [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] 1
2 8126 # [ ]N 60710 $ 741.1# [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] 2
3 3583 # [ ]N178774 $ [ ]N [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] 3
4 2043 # [ ]N133579 $ [ ]N [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] 4
5 1319 # [ ]N 43304 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] 5
6 1077 # 70469 # 23388 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] 6
7 1769 # 22258 # 14913 # [ ]N [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] 7
8 1126 # 16213 # 8178 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 8
9 [ ]N 39818 $ 5090 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 9
10 [ ]N 92788 $ 4064 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 10
11 [ ]N 86982 $ 3493 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 11
12 2213 # 90484 $ 2970 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 12
13 1169 # 27922 # 2704 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 13
14 [ ]N 84960 $ 2537 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 14
15 [ ]N102125 $ 7337 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 15
16 [ ]N 63152 # 42620 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 16
17 [ ]N 45951 # 10012 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 17
18 1153 # 40669 # 5624 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 18
19 [ ]N 23593 # 8453 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 19
20 [ ]N 12787 # 18902 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 20
21 [ ]N 32797 # 16851 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 21
22 [ ]N 17866 # 13787 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 22
23 [ ]N 7832 # 4732 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 23
24 [ ]N 4882 # 3573 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 24
25 [ ]N 4014 # 3004 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 25
26 [ ]N 3348 # 2565 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 26
27 [ ]N 6898 # 2208 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 27
28 [ ]N 11211 # 1945 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 28
29 [ ]N 1691 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 29
30 [ ]N 1377 # [ ]N [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ] 30
31 1543 # 1135 # [ ]N [ ]N [ ] [ ] [ ] 31
Mean 3341 #37991 $20982 $ 833.5 # [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ]
Median 1656 #25757 $ 5624 $ 833.5 # [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ]
Maximum 14966 #102125 $178774 $ 925.8# [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ]
Minimum 1077 #2768 $1135 $ 741.1 # [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ]
Total 40087 #911786 $650429 $ 1667 # [ ]N [ ]N [ ]N [ ] [ ] [ ] [ ] [ ]
Missing Days 19 4 0 28 31 30 31 31 30 31 30 31
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 23246 $ # ... Relative Uncertainty +/-15%
Ann. Median 7832 $ $ ... Relative Uncertainty +/-20%
Annual Total 1603969$ N ... Not Rated
Missing Days 296 [ ... Not Available
Maximum Minimum
Daily 178774 $ 741.1 $