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Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1980
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 [ ] [ ] [ ] [ ] 14.43 " 36.88 " 699.4 $1355 $ 590.3 " 519.0 " 169.1 " 56.06 " 1
2 [ ] [ ] [ ] [ ] 14.55 " 48.14 " 493.2 $1138 $ 502.3 " 486.6 " 198.4 " 54.94 " 2
3 [ ] [ ] [ ] [ ] 14.55 " 62.02 " 351.7 $ 834.6 $ 461.1 " 431.3 " 282.1 " 52.25 " 3
4 [ ] [ ] [ ] [ ] 14.42 " 69.29 " 261.1 $ 652.1 $ 490.9 " 400.3 # 219.4 " 46.55 " 4
5 [ ] [ ] [ ] [ ] 14.50 " 91.88 " 209.6 $ 590.6 $ 451.3 " 384.5 # 191.8 " 44.86 " 5
6 [ ] [ ] [ ] [ ] 15.48 " 110.6 " 172.5 $ 645.3 $ 462.4 " 367.6 # 180.8 " 42.34 " 6
7 [ ] [ ] [ ] [ ] 15.43 " 101.9 " 146.7 $ 576.3 $ 478.5 " 346.3 # 167.7 " 38.17 " 7
8 [ ] [ ] [ ] [ ] 15.52 " 83.70 " 127.7 $ 534.3 " 567.2 " 309.2 # 145.5 " 36.24 " 8
9 [ ] [ ] [ ] [ ] 15.81 " 70.72 " 142.3 $1898 " 513.5 " 268.8 " 128.9 " 34.59 " 9
10 [ ] [ ] [ ] [ ] 16.31 " 60.71 " 711.5 $4213 " 446.0 " 237.6 " 114.8 " 32.78 " 10
11 [ ] [ ] [ ] [ ] 16.32 " 52.48 "1103 $2140 " 395.6 " 207.7 " 104.6 " 25.76 " 11
12 [ ] [ ] [ ] [ ] 16.18 " 46.90 "1401 $1341 " 353.3 " 186.2 " 96.06 " 23.32 " 12
13 [ ] [ ] [ ] [ ] 16.15 " 43.75 "1150 $ 820.2 " 348.9 " 167.7 " 89.70 " 21.50 " 13
14 [ ] [ ] [ ] [ ] 15.87 " 43.33 " 911.7 $ 495.3 " 655.9 " 144.2 " 81.73 " 20.50 " 14
15 [ ] [ ] [ ] [ ] 15.87 " 51.57 "1073 $ 278.9 " 629.4 " 127.1 " 76.89 " 19.30 " 15
16 [ ] [ ] [ ] [ ] 15.52 " 66.00 "1906 $ 209.5 " 577.6 " 116.2 " 70.18 " 19.35 " 16
17 [ ] [ ] [ ] [ ] 15.14 " 71.22 "1519 $ 179.3 " 603.8 " 114.1 " 64.90 " 17.95 " 17
18 [ ] [ ] [ ] [ ] 14.80 " 70.04 "1005 $ 235.1 " 535.2 " 113.6 " 64.52 " 18.43 " 18
19 [ ] [ ] [ ] [ ] 14.61 " 64.04 " 710.8 $ 326.6 " 462.0 " 96.73 " 60.06 " 15.34 " 19
20 [ ] [ ] [ ] [ ] 14.40 " 60.79 " 533.9 $ 287.1 " 403.3 " 92.16 " 59.78 " 15.46 " 20
21 [ ] [ ] [ ] [ ] 14.27 " 57.21 " 427.4 $ 469.7 " 357.5 " 217.7 " 56.39 " 14.52 " 21
22 [ ] [ ] [ ] [ ] 14.42 " 57.32 " 350.7 $ 596.1 " 448.0 " 566.7 " 49.25 " 13.53 " 22
23 [ ] [ ] [ ] [ ] 14.55 " 67.18 " 335.0 $ 480.5 " 617.8 " 545.4 " 45.48 " 15.20 " 23
24 [ ] [ ] [ ] [ ] 14.55 " 97.35 " 407.7 $ 370.6 " 783.1 " 387.3 " 41.87 " 13.55 " 24
25 [ ] [ ] [ ] [ ] 14.41 " 248.6 " 458.0 $ 297.9 " 841.3 " 325.4 " 41.44 " 13.45 " 25
26 [ ] [ ] [ ] [ ] 14.40 " 409.7 " 623.2 $ 729.2 " 668.2 " 313.2 " 46.33 " 14.04 " 26
27 [ ] [ ] [ ] [ ] 14.86 " 347.8 " 776.8 $ 932.8 " 541.7 " 287.6 " 68.96 " 13.08 " 27
28 [ ] [ ] [ ] [ ] 16.95 " 252.3 " 759.9 $ 722.9 " 468.5 " 259.4 " 74.86 " 13.74 " 28
29 [ ] [ ] [ ] [ ] 21.11 " 226.0 " 610.0 $ 579.9 " 521.7 " 232.0 " 67.09 " 14.43 " 29
30 [ ] [ ] [ ] 25.18 " 545.4 " 519.4 $ 696.8 " 559.1 " 206.4 " 58.68 " 17.62 " 30
31 [ ] [ ] 30.90 " 762.5 $ 711.7 " 184.5 " 21.31 " 31
Mean [ ] [ ] [ ] [ ] 16.18 " 120.5 " 666.4 $ 817.4 $ 524.5 " 278.8 # 103.9 " 25.81 "
Median [ ] [ ] [ ] [ ] 15.14 " 68.23 " 610.0 $ 596.1 $ 507.9 " 259.4 # 75.87 " 19.35 "
Maximum [ ] [ ] [ ] [ ] 30.90 " 545.4 "1906 $4213 $ 841.3 " 566.7 # 282.1 " 56.06 "
Minimum [ ] [ ] [ ] [ ] 14.27 " 36.88 " 127.7 $ 179.3 $ 348.9 " 92.16 # 41.44 " 13.08 "
Total [ ] [ ] [ ] [ ] 501.5 " 3615 "20659 $25338 $15736 " 8642 # 3117 " 800.2 "
Missing Days 31 29 31 30 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 320.0 $ " ... Relative Uncertainty +/-10%
Ann. Median 172.5 $ # ... Relative Uncertainty +/-15%
Annual Total 78409 $ $ ... Relative Uncertainty +/-20%
Missing Days 121 [ ... Not Available
Maximum Minimum
Daily 4213 $ 13.08 $
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1981
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 24.61 " 7.619" 9.465" 37.63 " 20.63 " 100.4 " 412.9 "1519 " 376.6 " 427.8 " 89.00 " 84.67 " 1
2 25.20 " 9.927" 7.349" 33.67 " 19.29 " 86.94 " 341.7 "1323 " 345.5 " 837.8 " 87.40 " 73.92 " 2
3 24.50 " 7.197" 8.167" 39.05 " 18.68 " 100.2 " 291.9 "1082 # 300.9 " 677.4 " 87.69 " 65.94 " 3
4 23.09 " 5.572" 6.341" 50.90 " 15.79 " 123.2 " 260.1 " 973.3 # 263.1 " 491.4 " 85.75 " 64.16 " 4
5 21.53 " 4.364" 7.457" 55.90 " 15.60 " 96.21 " 237.9 "1011 # 272.5 " 440.6 " 77.77 " 62.16 " 5
6 17.10 " 3.313" 11.47 # 56.45 " 14.64 " 79.40 " 217.6 " 941.3 # 286.4 " 395.4 " 71.42 " 59.28 " 6
7 15.04 " 3.602" 14.78 # 54.01 " 16.49 " 87.73 " 199.5 "1110 # 373.8 " 370.5 " 71.64 " 54.99 " 7
8 11.88 " 4.904" 17.90 # 56.88 " 13.59 " 157.8 " 183.7 "1333 #1490 " 341.0 " 70.99 " 50.37 " 8
9 10.52 " 7.856" 20.41 # 54.23 " 13.63 " 295.1 " 170.7 "1033 #1777 " 310.9 " 70.40 " 45.67 " 9
10 9.514" 4.895" 20.44 # 50.39 " 14.63 " 261.5 " 159.0 "1326 #1186 " 275.2 " 64.62 " 41.22 " 10
11 9.907" 6.267" 19.84 # 48.41 " 12.18 " 199.1 " 154.3 "2368 " 866.1 " 241.9 " 62.64 " 39.16 " 11
12 10.35 " 5.068" 17.11 " 46.34 " 12.74 " 221.8 " 152.6 "1953 " 675.0 " 215.3 " 89.65 " 39.06 " 12
13 10.28 " 9.681" 16.52 " 46.56 " 14.58 " 339.5 " 152.9 "1410 " 562.7 " 200.2 " 200.4 " 38.32 " 13
14 7.149" 8.108" 14.81 " 41.59 " 15.30 " 278.3 " 150.7 "1733 " 484.2 " 182.8 " 206.6 " 32.85 " 14
15 5.848" 10.69 " 13.32 " 39.13 " 15.15 " 217.1 " 142.7 "4640 " 414.3 " 167.5 " 147.9 " 28.44 " 15
16 6.418" 9.838" 10.24 " 35.50 " 15.21 " 255.9 " 135.1 "2824 " 381.6 " 153.6 " 117.8 " 28.02 " 16
17 7.382" 12.79 " 9.245" 33.77 " 15.52 " 272.6 " 141.2 "1870 " 429.3 " 130.0 " 98.04 " 27.26 " 17
18 7.568" 10.60 " 23.53 " 31.82 " 14.91 " 231.6 " 262.6 "1471 " 479.8 " 123.4 " 80.54 " 19.21 " 18
19 11.34 " 11.43 " 67.01 " 30.87 " 14.82 " 205.8 " 286.0 "1289 " 573.3 " 118.9 " 70.01 " 13.95 " 19
20 10.15 " 11.74 " 62.71 " 28.09 " 14.83 " 220.8 " 232.1 "1273 " 815.2 " 113.3 " 60.89 " 13.60 " 20
21 7.618" 11.03 " 53.02 " 24.93 " 17.14 " 295.4 " 255.4 "1136 " 852.9 " 99.44 " 54.66 " 12.39 " 21
22 6.710" 11.70 " 45.07 " 21.52 " 18.29 " 283.0 "1917 " 931.3 " 689.8 " 98.55 " 52.14 " 13.32 " 22
23 4.178" 12.55 " 44.75 " 20.84 " 18.10 " 229.7 "3133 " 806.8 " 586.6 " 97.80 " 46.86 " 10.34 " 23
24 5.326" 11.75 " 47.88 " 19.15 " 18.61 " 202.8 "1889 " 745.2 " 489.7 " 91.66 " 45.19 " 9.526" 24
25 5.708" 10.25 " 54.11 " 26.95 " 32.30 " 193.2 "1385 " 746.9 " 426.7 " 84.95 " 45.23 " 8.957" 25
26 7.581" 8.424" 45.59 " 25.09 " 37.70 " 190.4 "1141 " 745.4 " 389.7 " 90.45 " 59.04 " 8.347" 26
27 6.956" 8.586" 39.77 " 18.01 " 36.42 " 234.4 "1223 " 651.2 " 345.3 " 112.1 " 115.5 " 9.129" 27
28 7.076" 7.668" 36.53 " 18.78 " 36.81 " 473.3 "1237 " 572.0 " 311.6 " 113.9 " 130.5 " 8.861" 28
29 7.113" 37.60 " 31.71 " 42.14 " 549.8 "1031 " 533.3 " 288.4 " 103.6 " 114.2 " 7.716" 29
30 4.858" 31.83 " 25.97 " 59.24 " 480.1 "2023 " 470.8 " 332.6 " 102.2 " 96.79 " 7.747" 30
31 7.624" 33.99 " 81.38 " 2162 " 416.6 " 94.96 " 7.395" 31
Mean 10.97 " 8.479" 27.36 # 36.80 " 22.79 " 232.1 " 699.4 "1298 # 568.9 " 235.6 " 89.04 " 31.80 "
Median 7.624" 8.505" 20.41 # 34.64 " 15.79 " 221.3 " 260.1 "1110 # 428.0 " 153.6 " 79.15 " 28.02 "
Maximum 25.20 " 12.79 " 67.01 # 56.88 " 81.38 " 549.8 "3133 "4640 #1777 " 837.8 " 206.6 " 84.67 "
Minimum 4.178" 3.313" 6.341# 18.01 " 12.18 " 79.40 " 135.1 " 416.6 # 263.1 " 84.95 " 45.19 " 7.395"
Total 340.1 " 237.4 " 848.3 # 1104 " 706.3 " 6963 "21683 "40237 #17067 " 7305 " 2671 " 986.0 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 274.4 # " ... Relative Uncertainty +/-10%
Ann. Median 62.64 # # ... Relative Uncertainty +/-15%
Annual Total 100148 #
Maximum Minimum
Daily 4640 # 3.313#
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1982
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 9.912" 83.23 " 20.89 " 25.69 $ 17.37 " 16.10 " 354.2 " 339.8 " 335.0 " 275.0 " 66.97 " 12.39 " 1
2 11.97 " 73.30 " 18.72 " 25.18 $ 20.16 " 18.42 " 372.3 " 393.6 " 301.1 " 241.2 " 63.53 " 11.07 " 2
3 11.80 " 61.82 " 19.60 " 24.68 $ 19.96 " 28.35 " 327.3 " 455.7 " 276.4 " 219.8 " 59.19 " 12.08 " 3
4 15.65 " 52.82 " 20.85 " 24.18 $ 19.43 " 62.68 " 388.4 " 401.4 " 261.7 " 218.3 " 56.32 " 14.49 " 4
5 15.19 " 44.20 " 20.43 " 23.69 $ 19.45 " 69.15 " 404.0 " 357.9 " 238.8 " 444.2 " 54.12 " 13.19 " 5
6 16.31 " 40.34 " 19.11 " 23.21 $ 19.50 " 48.75 " 481.3 " 320.7 " 204.6 " 613.1 " 52.14 " 13.55 " 6
7 12.00 " 36.42 " 18.34 " 22.73 $ 19.71 " 39.51 " 453.4 " 301.4 " 185.6 " 512.8 " 49.47 " 13.06 " 7
8 10.20 " 34.19 " 19.36 " 22.26 $ 20.88 " 46.50 " 374.3 " 370.2 " 175.5 " 402.1 " 45.89 " 12.31 " 8
9 15.94 " 31.85 " 19.41 " 21.80 $ 20.84 " 64.81 " 341.5 " 437.6 " 165.6 " 321.5 " 45.30 " 11.95 " 9
10 15.48 " 26.49 " 19.65 " 21.35 $ 20.11 " 94.23 " 391.2 " 399.5 " 153.2 " 260.4 " 43.67 " 12.61 " 10
11 17.99 " 24.58 " 16.82 " 20.89 $ 19.56 " 110.0 " 376.1 " 351.0 " 141.6 " 233.6 " 42.24 " 15.50 " 11
12 16.73 " 21.08 " 19.96 " 20.43 $ 21.11 " 126.2 " 323.3 " 314.4 " 137.7 " 216.5 " 42.49 " 17.49 " 12
13 10.42 " 21.72 " 21.20 " 19.97 $ 26.44 " 173.9 " 289.2 " 287.7 " 139.5 " 199.0 " 41.55 " 17.39 " 13
14 10.49 " 23.51 " 20.43 " 19.52 $ 20.94 " 357.1 " 285.6 " 268.3 " 149.2 " 181.9 " 39.81 " 17.33 " 14
15 16.04 " 25.52 " 21.06 " 19.07 $ 19.32 " 307.4 " 664.3 " 254.8 " 297.4 " 172.4 " 39.76 " 15.61 " 15
16 12.09 " 26.79 " 21.11 " 18.62 $ 18.28 " 393.5 "1336 " 237.6 " 452.9 " 163.0 " 39.18 " 16.06 " 16
17 9.445" 26.43 " 23.12 " 18.19 $ 19.08 " 458.4 "1198 " 219.7 " 434.3 " 152.1 " 37.20 " 13.35 " 17
18 14.30 " 23.58 " 21.35 " 17.76 $ 17.59 " 370.9 " 816.6 " 206.0 " 343.1 " 144.7 " 32.75 " 12.62 " 18
19 14.80 " 21.63 " 17.98 " 17.33 $ 16.99 " 300.4 " 606.3 " 221.1 " 286.4 " 127.2 " 29.83 " 11.78 " 19
20 14.53 " 19.64 " 21.31 " 16.92 $ 16.66 " 250.1 " 569.6 " 285.1 " 250.6 " 104.9 " 26.29 " 10.53 " 20
21 24.10 " 18.32 " 25.72 " 16.51 $ 16.53 " 214.2 " 806.1 " 267.1 " 242.1 " 93.60 " 20.88 " 10.72 " 21
22 686.0 " 18.33 " 25.38 " 16.10 $ 16.34 " 190.5 " 742.8 " 239.0 " 292.0 " 83.80 " 21.82 " 8.878" 22
23 2013 " 17.72 " 26.27 " 15.70 $ 15.85 " 176.9 " 629.0 " 756.0 " 394.1 " 77.71 " 17.51 " 7.179" 23
24 988.2 " 18.18 " 26.28 " 15.31 $ 17.17 " 175.3 " 541.6 "1442 " 489.5 " 75.67 " 15.30 " 6.270" 24
25 533.8 " 21.00 " 26.46 " 14.92 $ 16.64 " 188.0 " 493.0 " 936.1 " 670.7 " 83.28 " 13.43 " 5.134" 25
26 316.7 " 17.81 " 27.44 " 14.52 $ 15.31 " 197.3 " 472.1 " 637.7 " 596.8 " 102.1 " 12.49 " 5.662" 26
27 213.2 " 21.13 " 24.99 " 14.13 $ 16.10 " 193.6 " 484.2 " 499.8 " 488.3 " 99.43 " 11.04 " 4.975" 27
28 166.6 " 21.19 " 23.54 " 13.76 $ 16.10 " 209.3 " 534.9 " 433.2 " 411.4 " 90.43 " 11.37 " 4.683" 28
29 136.0 " 23.45 " 13.64 $ 16.04 " 343.7 " 478.4 " 452.8 " 355.5 " 83.20 " 13.31 " 3.874" 29
30 115.5 " 26.78 " 15.02 " 16.05 " 334.9 " 415.7 " 429.8 " 307.6 " 77.42 " 13.63 " 3.387" 30
31 93.30 " 26.58 $ 16.06 " 371.4 " 377.6 " 71.78 " 3.928" 31
Mean 179.3 " 31.17 " 22.05 $ 19.10 $ 18.44 " 185.3 " 526.5 " 416.0 " 305.9 " 198.1 " 35.28 " 10.94 "
Median 15.94 " 24.08 " 21.11 $ 18.85 $ 18.28 " 182.4 " 472.1 " 357.9 " 289.2 " 163.0 " 39.47 " 12.08 "
Maximum 2013 " 83.23 " 27.44 $ 25.69 $ 26.44 " 458.4 "1336 "1442 " 670.7 " 613.1 " 66.97 " 17.49 "
Minimum 9.445" 17.72 " 16.82 $ 13.64 $ 15.31 " 16.10 " 285.6 " 206.0 " 137.7 " 71.78 " 11.04 " 3.387"
Total 5558 " 872.8 " 683.6 $ 573.1 $ 571.6 " 5560 "16322 "12895 " 9178 " 6142 " 1058 " 339.0 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 163.7 $ " ... Relative Uncertainty +/-10%
Ann. Median 37.20 $ $ ... Relative Uncertainty +/-20%
Annual Total 59753 $
Maximum Minimum
Daily 2013 $ 3.387$
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1983
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 3.583" 4.356" 8.954" 12.74 " 12.26 " 38.60 "2044 "1313 "3169 " 351.4 " 68.38 " 21.14 " 1
2 3.952" 5.252" 6.654" 14.25 " 15.03 " 164.8 "1311 "1026 "3977 " 320.8 " 63.77 " 21.54 " 2
3 3.418" 4.823" 6.950" 16.63 " 21.59 " 251.7 " 937.7 " 860.3 "3515 " 294.9 " 60.16 " 20.41 " 3
4 2.845" 4.943" 6.295" 19.35 " 23.38 " 167.3 " 798.8 " 820.7 "8289 " 275.3 " 57.75 " 21.76 " 4
5 2.363" 5.920" 6.491" 18.94 " 28.38 " 132.5 " 633.5 "1330 "6297 " 254.0 " 56.01 " 18.44 " 5
6 3.019" 6.453" 6.519" 16.60 " 42.85 " 118.5 " 516.3 "1954 "3946 " 235.2 " 54.69 " 16.29 " 6
7 3.724" 8.167" 5.445" 15.63 " 41.85 " 103.4 " 447.0 "1524 "5669 " 221.8 " 57.44 " 18.40 " 7
8 3.387" 14.68 " 5.950" 15.68 " 35.58 " 90.08 " 548.4 "1103 "4354 " 212.0 " 58.45 " 16.96 " 8
9 2.930" 17.31 " 5.305" 14.28 " 31.16 " 78.72 "1654 " 879.1 "2864 " 195.5 " 64.08 " 18.93 " 9
10 3.023" 17.37 " 4.825" 15.40 " 31.67 " 69.71 "3054 " 748.8 "2207 " 189.0 " 65.85 " 17.11 " 10
11 3.285" 13.59 " 4.676" 18.04 " 30.24 " 62.52 "2063 " 660.5 "1828 " 180.0 " 60.95 " 14.53 " 11
12 3.812" 11.27 " 5.509" 16.26 " 28.86 " 57.57 "1302 " 818.9 "1908 " 179.3 " 56.83 " 14.34 " 12
13 3.882" 12.11 " 4.909" 15.07 " 28.47 " 54.17 " 944.2 "1605 "2506 " 208.1 " 54.04 " 13.59 " 13
14 4.315" 10.01 " 5.261" 15.78 " 26.70 " 51.79 " 766.0 "2650 "2275 " 222.9 " 52.05 " 11.21 " 14
15 3.895" 10.91 " 4.703" 12.24 " 24.34 " 50.05 " 645.1 "2577 "2020 " 198.8 " 47.24 " 11.18 " 15
16 3.844" 10.60 " 5.688" 11.60 " 23.83 " 48.90 " 554.0 "1743 "2098 " 178.4 " 48.57 " 10.13 " 16
17 3.330" 14.67 " 6.978" 13.02 " 36.22 " 55.45 " 482.9 "1301 "1816 " 177.2 " 49.76 " 7.718" 17
18 3.526" 16.84 " 6.513" 11.22 " 31.36 " 249.8 " 437.4 "1214 "1464 " 183.4 " 47.30 " 8.856" 18
19 3.670" 16.10 " 6.951" 9.477" 26.65 " 687.5 " 422.9 "1147 "1220 " 169.2 " 48.89 " 9.006" 19
20 3.920" 14.88 " 7.302" 8.616" 24.80 " 828.3 " 416.3 "2589 "1053 " 154.9 " 50.58 " 8.566" 20
21 4.401" 12.83 " 8.265" 9.547" 25.19 " 549.5 " 440.0 "3360 " 906.2 " 141.9 " 50.08 " 6.371" 21
22 4.626" 11.09 " 5.761" 10.51 " 25.39 " 654.4 " 630.1 "2330 " 802.8 " 126.8 " 46.64 " 5.834" 22
23 4.868" 8.628" 5.125" 11.11 " 24.03 " 491.3 " 612.0 "2470 " 706.4 " 116.0 " 42.22 " 4.481" 23
24 4.744" 7.454" 5.889" 12.01 " 25.19 " 356.7 "1887 "3408 " 644.3 " 106.5 " 38.24 " 6.799" 24
25 4.614" 8.096" 5.790" 12.03 " 23.99 " 315.5 "3273 "3470 " 576.8 " 98.94 " 37.25 " 6.214" 25
26 4.550" 10.32 " 6.139" 11.95 " 22.04 " 447.8 "3464 "2689 " 519.2 " 94.53 " 32.55 " 8.817" 26
27 4.365" 9.376" 5.914" 11.22 " 23.66 " 575.5 "2491 "2424 " 486.3 " 89.24 " 30.39 " 9.496" 27
28 4.125" 11.51 " 6.138" 11.41 " 23.90 "3351 "1718 "2447 " 454.3 " 83.81 " 29.19 " 10.81 " 28
29 3.923" 7.477" 16.28 " 24.13 "6132 "1291 "3194 " 414.8 " 80.29 " 28.97 " 8.565" 29
30 3.808" 8.423" 13.52 " 23.84 "3862 "1854 "3144 " 381.4 " 77.19 " 25.99 " 7.653" 30
31 3.579" 9.811" 23.06 " 1830 "2956 " 73.55 " 8.270" 31
Mean 3.785" 10.70 " 6.342" 13.68 " 26.76 " 669.9 "1273 "1928 "2279 " 177.1 " 49.48 " 12.37 "
Median 3.812" 10.75 " 6.138" 13.27 " 25.19 " 166.0 " 937.7 "1743 "1868 " 179.3 " 50.33 " 10.81 "
Maximum 4.868" 17.37 " 9.811" 19.35 " 42.85 "6132 "3464 "3470 "8289 " 351.4 " 68.38 " 21.76 "
Minimum 2.363" 4.356" 4.676" 8.616" 12.26 " 38.60 " 416.3 " 660.5 " 381.4 " 73.55 " 25.99 " 4.481"
Total 117.3 " 299.6 " 196.6 " 410.4 " 829.6 "20096 "39468 "59757 "68369 " 5491 " 1484 " 383.4 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 539.5 " " ... Relative Uncertainty +/-10%
Ann. Median 32.55 "
Annual Total 196903 "
Maximum Minimum
Daily 8289 " 2.363"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1984
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 9.975" 4.302" 4.840" 8.828" 32.16 " 232.7 " 352.8 " 280.1 " 342.6 # 173.7 " 62.39 " 39.83 " 1
2 9.441" 3.989" 3.103" 8.916" 31.83 " 190.3 " 326.5 " 447.6 " 318.6 # 175.0 " 68.88 " 38.07 " 2
3 10.76 " 4.318" 4.115" 8.601" 34.04 " 210.1 " 294.2 " 580.4 " 330.6 # 173.9 " 66.98 " 34.62 " 3
4 9.245" 3.134" 4.685" 7.193" 32.17 " 278.4 " 387.9 " 522.7 " 349.2 # 167.2 " 64.12 " 32.66 " 4
5 9.572" 2.786" 5.280" 5.841" 28.45 " 280.3 " 723.3 " 465.7 " 546.3 # 162.2 " 62.40 " 27.99 " 5
6 9.108" 5.479" 6.708" 6.739" 23.61 " 401.8 " 854.9 " 518.2 "1176 # 155.3 " 84.55 " 21.92 " 6
7 10.28 " 3.832" 4.037" 6.364" 27.56 " 371.1 " 711.4 " 793.1 " 930.4 # 144.6 " 179.6 " 24.86 " 7
8 11.44 " 3.069" 5.112" 6.580" 31.37 " 298.3 " 743.1 " 829.0 " 730.9 # 139.5 " 212.5 " 27.54 " 8
9 9.382" 2.939" 6.072" 5.864" 30.70 " 249.9 " 689.9 " 683.0 "1087 # 141.0 " 291.9 " 27.20 " 9
10 8.701" 2.463" 7.793" 6.573" 31.30 " 220.9 " 547.6 " 565.6 "1194 # 134.3 " 260.5 " 26.74 " 10
11 6.684" 2.550" 9.348" 9.381" 31.13 " 203.5 " 458.3 " 471.5 " 852.7 # 123.5 " 197.2 " 26.93 " 11
12 6.294# 4.924" 8.036" 17.20 " 36.38 " 200.9 " 399.7 " 424.1 " 687.6 " 119.8 " 154.0 " 26.18 " 12
13 5.810# 4.265" 7.443" 15.07 " 35.35 " 517.4 " 350.5 " 396.0 " 598.5 " 111.1 " 122.9 " 24.09 " 13
14 7.277# 4.359" 5.616" 15.97 " 32.70 " 818.1 " 316.6 " 372.4 " 840.0 " 102.7 " 99.80 " 24.74 " 14
15 7.218# 3.701" 5.501" 16.80 " 32.29 " 546.5 " 319.9 " 574.2 "1814 " 97.57 " 81.83 " 24.67 " 15
16 6.427# 3.981" 6.496" 17.40 " 32.62 " 405.8 " 522.3 " 829.4 "1355 " 89.38 " 72.34 " 22.04 " 16
17 6.083# 3.887" 10.43 " 17.52 " 40.04 " 334.3 " 549.5 " 731.8 " 971.0 " 83.86 " 69.05 " 21.68 " 17
18 6.633# 4.861" 9.412" 17.24 " 83.48 " 289.1 " 443.8 " 603.1 " 776.1 " 82.35 " 68.13 " 18.04 " 18
19 5.163" 4.952" 7.958" 16.81 " 101.0 " 252.2 " 377.0 " 564.9 " 636.3 " 72.85 " 78.58 " 18.42 " 19
20 4.009" 5.468" 7.363" 15.42 " 118.8 " 246.7 " 334.0 " 587.5 " 534.5 " 59.03 " 78.85 " 13.79 " 20
21 4.954" 6.541" 6.618" 16.91 " 118.3 " 653.4 " 300.1 " 537.4 " 461.5 " 64.50 " 70.81 " 13.17 " 21
22 4.445" 6.357" 6.375" 15.41 " 107.8 "1188 " 271.8 " 556.4 " 407.8 " 59.49 " 60.61 " 12.31 " 22
23 6.089" 5.966" 7.355" 14.44 " 85.13 " 975.3 " 251.5 " 553.5 " 350.7 " 57.96 " 55.12 " 10.96 " 23
24 4.251" 5.455" 8.021" 15.55 " 73.48 " 655.3 " 234.3 " 490.4 " 313.5 " 55.86 " 53.93 " 10.60 " 24
25 3.749" 7.193" 7.168" 15.51 " 73.60 " 578.9 " 227.8 " 417.8 " 282.0 " 53.30 " 52.49 " 9.235" 25
26 5.059" 6.642" 8.242" 14.09 " 86.33 " 563.4 " 348.0 " 381.3 " 260.5 " 49.84 " 51.01 " 10.18 " 26
27 3.802" 8.562" 7.500" 14.41 " 117.0 " 467.2 " 457.5 " 352.3 " 237.4 " 49.17 " 50.24 " 14.04 " 27
28 3.430" 8.008" 6.589" 14.05 " 191.7 " 390.8 " 433.5 " 324.8 " 216.0 " 46.70 " 47.32 " 18.88 " 28
29 3.960" 7.272" 8.108" 17.87 " 267.5 " 340.8 " 368.1 " 306.2 " 197.2 " 45.48 " 42.20 " 18.22 " 29
30 4.440" 7.746" 28.18 " 278.4 " 312.0 " 328.8 " 362.8 # 183.7 " 46.47 " 41.61 " 18.69 " 30
31 4.476" 7.738" 293.8 " 296.0 " 369.4 # 50.76 " 18.45 " 31
Mean 6.715# 4.871" 6.800" 13.22 " 81.94 " 422.4 " 426.5 " 512.7 # 632.7 # 99.63 " 96.73 " 21.83 "
Median 6.294# 4.359" 7.168" 14.76 " 36.38 " 337.5 " 368.1 " 518.2 # 540.4 # 89.38 " 68.97 " 21.92 "
Maximum 11.44 # 8.562" 10.43 " 28.18 " 293.8 "1188 " 854.9 " 829.4 #1814 # 175.0 " 291.9 " 39.83 "
Minimum 3.430# 2.463" 3.103" 5.841" 23.61 " 190.3 " 227.8 " 280.1 # 183.7 # 45.48 " 41.61 " 9.235"
Total 208.2 # 141.3 " 210.8 " 396.7 " 2540 "12673 "13220 "15893 #18982 # 3089 " 2902 " 676.7 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 193.8 # " ... Relative Uncertainty +/-10%
Ann. Median 54.52 # # ... Relative Uncertainty +/-15%
Annual Total 70932 #
Maximum Minimum
Daily 1814 # 2.463#
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1985
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 15.32 " 6.890" 3.940" 11.43 " 48.97 " 73.94 "2382 " 376.7 "1212 " 179.7 " 67.67 " 25.49 " 1
2 15.50 " 6.682" 5.276" 11.59 " 46.68 " 68.13 "2590 " 348.0 "1453 " 170.2 " 60.36 " 25.52 " 2
3 14.72 " 6.111" 4.641" 11.75 " 46.48 " 63.54 "1464 " 650.9 "1646 " 158.4 " 59.14 " 23.72 " 3
4 11.09 " 4.423" 5.088" 12.54 " 47.07 " 61.06 " 928.3 " 943.7 "1779 " 153.0 " 56.80 " 23.36 " 4
5 9.900" 5.234" 3.335" 13.03 " 46.01 " 60.96 " 681.6 "1018 "1895 " 153.0 " 54.18 " 21.56 " 5
6 8.546" 4.620" 3.986" 10.74 " 49.86 " 67.41 " 537.8 "1102 "1997 " 146.5 " 54.19 " 20.79 " 6
7 8.274" 6.321" 4.934" 10.56 " 49.50 " 104.4 " 446.8 " 888.7 "2090 " 133.4 " 53.42 " 19.69 " 7
8 7.754" 5.119" 9.793" 14.72 " 46.36 " 235.2 " 398.7 " 707.9 "2156 " 121.1 " 63.50 " 17.70 " 8
9 6.881" 5.827" 13.85 " 320.2 " 43.75 " 214.0 " 425.0 " 742.1 "2152 " 111.6 " 102.1 " 16.87 " 9
10 6.197" 6.330" 18.12 "1144 " 41.69 " 178.0 " 398.2 " 909.5 "2194 " 103.1 " 138.0 " 15.24 " 10
11 6.504" 47.65 " 19.97 " 526.1 " 40.12 " 170.3 " 400.6 " 790.0 "2258 " 96.03 " 113.5 " 15.73 " 11
12 6.147" 56.14 " 18.65 " 295.2 " 39.81 " 173.1 " 486.0 " 692.2 "2321 " 95.24 " 93.80 " 12.89 " 12
13 5.314" 32.69 " 18.23 " 199.8 " 40.47 " 194.9 " 784.9 " 663.1 "2374 " 108.5 " 79.84 " 10.65 " 13
14 5.032" 19.86 " 13.75 " 146.8 " 40.86 " 185.9 "2218 " 579.3 "2403 " 128.2 " 60.78 " 12.56 " 14
15 5.775" 13.87 " 12.99 " 115.7 " 40.92 " 176.7 "1658 " 505.9 "2411 " 126.2 " 57.55 " 13.26 " 15
16 9.219" 11.72 " 11.41 " 96.29 " 39.92 " 228.8 "1021 " 450.2 "2440 " 112.6 " 53.00 " 12.21 " 16
17 10.88 " 10.51 " 12.35 " 82.55 " 38.95 " 355.9 " 750.8 " 408.0 "2379 " 100.8 " 50.43 " 10.19 " 17
18 9.257" 9.519" 13.20 " 70.03 " 37.50 " 327.7 " 622.7 " 572.7 "1975 " 91.81 " 47.22 " 10.80 " 18
19 11.86 " 9.697" 14.25 " 61.61 " 36.83 " 267.8 " 546.0 "1316 "1461 " 85.07 " 42.67 " 12.60 " 19
20 12.94 " 7.854" 15.03 " 55.88 " 36.54 " 221.4 " 502.1 "1454 " 356.8 " 81.20 " 37.92 " 13.25 " 20
21 11.63 " 6.243" 13.53 " 51.71 " 36.14 " 207.9 " 458.4 "1253 " 309.0 " 77.18 " 35.13 " 12.49 " 21
22 11.03 " 6.875" 12.85 " 48.34 " 35.55 " 270.5 " 419.0 " 926.0 " 347.4 " 72.58 " 35.68 " 11.04 " 22
23 9.082" 5.411" 12.63 " 44.71 " 35.29 " 305.8 " 381.8 " 812.9 " 343.0 " 69.40 " 34.40 " 9.382" 23
24 5.719" 5.151" 10.44 " 41.73 " 35.56 " 282.5 " 353.9 " 603.8 " 299.4 " 66.38 " 32.92 " 9.579" 24
25 4.915" 4.657" 10.44 " 47.40 " 38.72 " 359.6 " 351.9 " 104.7 " 274.2 " 63.77 " 29.43 " 10.14 " 25
26 5.441" 4.431" 12.61 " 42.63 " 46.74 " 382.1 " 367.7 " 191.2 " 250.5 " 63.82 " 28.11 " 13.27 " 26
27 5.320" 3.127" 10.65 " 50.32 " 126.9 " 381.5 " 409.8 " 178.6 " 229.9 " 63.74 " 26.52 " 14.13 " 27
28 5.558" 4.659" 10.03 " 49.88 " 141.1 " 406.1 " 648.4 " 411.5 " 209.9 " 70.43 " 24.82 " 11.60 " 28
29 6.414" 7.238" 47.42 " 110.1 " 767.7 " 609.0 " 834.5 " 196.1 " 80.88 " 24.86 " 10.17 " 29
30 5.827" 8.723" 49.93 " 92.30 "1471 " 489.9 "1051 " 188.5 " 85.72 " 23.44 " 10.63 " 30
31 5.487" 9.675" 82.33 " 419.6 "1005 " 77.55 " 8.585" 31
Mean 8.501" 11.34 " 11.02 " 122.8 " 52.87 " 275.5 " 779.1 " 725.6 "1387 " 104.7 " 54.71 " 14.68 "
Median 7.754" 6.326" 11.41 " 49.91 " 41.69 " 217.7 " 502.1 " 707.9 "1712 " 96.03 " 53.21 " 12.89 "
Maximum 15.50 " 56.14 " 19.97 "1144 " 141.1 "1471 "2590 "1454 "2440 " 179.7 " 138.0 " 25.52 "
Minimum 4.915" 3.127" 3.335" 10.56 " 35.29 " 60.96 " 351.9 " 104.7 " 188.5 " 63.74 " 23.44 " 8.585"
Total 263.5 " 317.6 " 341.6 " 3684 " 1639 " 8264 "24151 "22492 "41601 " 3247 " 1641 " 455.1 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 296.2 " " ... Relative Uncertainty +/-10%
Ann. Median 55.88 "
Annual Total 108098 "
Maximum Minimum
Daily 2590 " 3.127"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1986
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 7.478" 5.103" 24.25 " 17.82 " 12.42 " 36.49 " 123.7 "1273 " 335.0 " 191.1 " 64.17 " 22.02 " 1
2 6.585" 4.493" 20.27 " 17.98 " 12.63 " 34.00 " 98.63 " 741.5 " 298.2 " 158.2 " 60.01 " 21.07 " 2
3 6.789" 4.116" 18.43 " 17.34 " 11.94 " 32.41 " 99.98 " 515.4 " 281.2 " 142.3 " 59.16 " 20.20 " 3
4 6.667" 5.596" 17.01 " 16.54 " 13.58 " 31.53 " 113.7 " 404.0 " 324.9 " 133.7 " 60.07 " 14.11 " 4
5 7.708" 3.984" 15.28 " 16.02 " 14.72 " 30.43 " 106.8 " 339.5 " 312.3 " 127.9 " 60.53 " 12.53 " 5
6 5.750" 3.930" 15.61 " 15.94 " 15.24 " 30.13 " 101.6 " 316.3 " 272.6 " 127.1 " 59.84 " 11.22 " 6
7 5.661" 4.410" 15.65 " 15.82 " 17.61 " 29.60 " 99.02 " 386.0 " 248.9 " 122.6 " 55.53 " 12.04 " 7
8 5.992" 4.462" 13.36 " 14.95 " 17.19 " 28.84 " 92.85 " 363.4 " 236.8 " 114.4 " 54.71 " 15.83 " 8
9 5.947" 5.392" 13.82 " 12.82 " 16.35 " 28.36 " 84.14 " 371.3 " 218.9 " 108.9 " 58.26 " 12.91 " 9
10 5.607" 3.685" 18.49 " 14.09 " 19.86 " 27.92 " 77.26 " 341.7 " 200.2 " 107.3 " 62.65 " 11.95 " 10
11 5.218" 3.375" 23.70 " 14.66 " 20.45 " 27.58 " 71.08 " 309.7 " 189.1 " 99.23 " 64.94 " 9.649" 11
12 7.356" 4.765" 25.20 " 13.00 " 19.19 " 27.29 " 69.16 " 317.4 " 198.4 " 103.5 " 59.10 " 10.14 " 12
13 7.584" 7.507" 24.21 " 13.29 " 28.14 " 26.84 " 69.27 " 286.5 " 194.9 " 181.8 " 56.19 " 7.614" 13
14 7.776" 11.82 " 23.58 " 14.72 " 23.50 " 26.36 " 85.51 " 269.9 " 192.2 " 207.0 " 52.01 " 9.890" 14
15 6.023" 10.93 " 22.25 " 14.90 " 19.65 " 26.25 " 160.5 " 362.5 " 251.7 " 175.8 " 47.32 " 9.357" 15
16 5.568" 11.39 " 20.05 " 12.83 " 19.54 " 26.98 " 287.4 " 364.8 " 269.6 " 154.2 " 44.19 " 9.189" 16
17 4.603" 9.408" 18.85 " 12.71 " 21.32 " 27.17 " 241.0 " 394.4 " 252.8 " 182.9 " 44.69 " 7.774" 17
18 5.461" 8.736" 15.73 " 13.80 " 21.44 " 27.26 " 241.7 " 598.1 " 293.4 " 240.0 " 37.53 " 5.699" 18
19 5.597" 6.362" 18.31 " 14.15 " 24.78 " 27.93 " 244.4 " 529.7 " 326.8 " 225.7 " 35.35 " 7.262" 19
20 5.299" 4.926" 18.90 " 13.42 " 34.80 " 28.85 " 207.0 " 450.0 " 296.5 " 199.6 " 32.52 " 5.942" 20
21 6.932" 7.158" 20.38 " 12.54 " 41.99 " 28.86 " 191.8 " 416.6 " 273.7 " 170.3 " 29.55 " 7.511" 21
22 6.077" 12.65 " 18.79 " 13.67 " 45.67 " 28.80 " 294.1 " 549.4 " 252.9 " 146.3 " 27.06 " 6.211" 22
23 6.217" 14.28 " 21.04 " 14.18 " 51.69 " 29.24 " 565.2 " 567.5 " 246.9 " 128.0 " 24.44 " 5.458" 23
24 3.921" 24.49 " 21.11 " 14.04 " 51.71 " 34.32 " 510.8 " 485.5 " 244.6 " 113.4 " 22.99 " 6.102" 24
25 4.381" 23.99 " 19.98 " 12.45 " 49.86 " 45.27 " 369.5 " 513.0 " 225.9 " 101.7 " 21.43 " 5.611" 25
26 4.835" 24.07 " 17.26 " 13.03 " 59.07 " 57.32 " 288.9 " 458.9 " 215.6 " 93.17 " 20.53 " 7.898" 26
27 3.859" 26.10 " 14.23 " 14.09 " 52.81 " 95.06 " 241.5 " 402.8 " 203.4 " 87.42 " 18.11 " 14.31 " 27
28 3.929" 26.55 " 15.16 " 13.92 " 53.19 " 143.8 " 208.0 " 423.7 " 182.6 " 82.93 " 17.32 " 11.91 " 28
29 4.263" 16.72 " 11.81 " 49.40 " 194.9 " 198.2 " 405.3 " 169.1 " 80.64 " 15.65 " 10.92 " 29
30 4.923" 16.51 " 11.44 " 43.85 " 166.4 " 586.0 " 367.7 " 211.9 " 74.76 " 19.93 " 9.622" 30
31 3.996" 15.25 " 39.38 " 1617 " 363.4 " 69.66 " 7.363" 31
Mean 5.742" 10.13 " 18.69 " 14.27 " 29.77 " 46.87 " 249.9 " 448.0 " 247.4 " 137.1 " 42.86 " 10.62 "
Median 5.661" 6.760" 18.49 " 14.06 " 21.44 " 29.05 " 191.8 " 402.8 " 247.9 " 127.9 " 46.01 " 9.649"
Maximum 7.776" 26.55 " 25.20 " 17.98 " 59.07 " 194.9 "1617 "1273 " 335.0 " 240.0 " 64.94 " 22.02 "
Minimum 3.859" 3.375" 13.36 " 11.44 " 11.94 " 26.25 " 69.16 " 269.9 " 169.1 " 69.66 " 15.65 " 5.458"
Total 178.0 " 283.7 " 579.4 " 428.0 " 923.0 " 1406 " 7746 "13888 " 7421 " 4251 " 1286 " 329.3 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 106.1 " " ... Relative Uncertainty +/-10%
Ann. Median 27.17 "
Annual Total 38720 "
Maximum Minimum
Daily 1617 " 3.375"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1987
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 6.710" 3.998" 3.157" 11.36 " 41.61 " 24.74 " 142.1 # 735.2 " 288.0 " 102.2 " 33.21 " 15.44 " 1
2 5.449" 4.771" 3.334" 12.57 " 37.99 " 24.23 " 140.8 # 554.5 " 245.7 " 89.72 " 34.12 " 14.20 " 2
3 4.837" 4.830" 4.811" 13.87 " 37.42 " 24.15 " 165.6 # 441.0 " 218.3 " 83.70 " 32.03 " 12.49 " 3
4 5.518" 3.139" 4.315" 12.75 " 41.09 " 24.27 " 370.5 # 368.0 " 197.6 " 80.91 " 30.52 " 12.97 " 4
5 3.785" 2.888" 3.580" 12.19 " 37.76 " 23.80 " 385.3 # 321.5 " 180.7 " 81.28 " 26.88 " 12.05 " 5
6 4.120" 3.704" 3.158" 12.91 " 33.93 " 25.60 " 314.1 # 286.6 " 165.1 " 74.48 " 20.63 " 12.52 " 6
7 4.417" 3.956" 2.691" 11.58 " 31.39 " 29.76 " 262.8 " 262.5 " 150.6 " 69.48 " 26.70 " 14.75 " 7
8 3.778" 3.777" 3.869" 14.36 " 31.19 " 38.38 " 834.5 " 235.5 " 139.5 " 64.38 " 25.27 " 12.35 " 8
9 4.139" 3.394" 4.198" 17.60 " 36.27 " 41.43 "1087 " 205.9 " 131.0 " 60.51 " 23.71 " 9.226" 9
10 4.216" 4.142" 2.957" 19.44 " 38.34 " 50.59 " 704.2 " 184.6 " 123.7 " 55.52 " 24.00 " 8.640" 10
11 5.185" 3.148" 3.226" 22.05 " 39.64 " 54.72 " 495.1 " 171.7 " 113.9 " 51.08 " 20.35 " 9.110" 11
12 3.735" 2.941" 3.527" 23.43 " 52.42 " 57.70 " 412.9 " 219.5 " 106.5 " 48.13 " 19.28 " 7.263" 12
13 8.047" 2.690" 3.123" 21.70 " 52.73 " 53.48 " 387.0 " 416.8 " 97.92 " 45.42 " 17.81 " 8.086" 13
14 8.061" 4.059" 3.695" 20.26 " 47.91 " 48.06 " 344.9 " 452.7 " 89.68 " 45.81 " 16.39 " 6.795" 14
15 6.665" 3.087" 4.382" 18.11 " 42.29 " 46.72 " 303.5 " 345.7 " 84.54 " 47.67 " 16.58 " 5.842" 15
16 6.481" 3.609" 8.267" 17.18 " 38.80 " 48.35 " 276.9 " 284.3 " 82.08 " 50.89 " 16.21 " 5.554" 16
17 5.370" 3.570" 11.10 " 16.21 " 36.60 " 56.39 " 265.9 " 248.8 " 95.90 " 54.11 " 18.75 " 4.875" 17
18 8.070" 3.718" 12.87 " 15.93 " 34.75 " 94.28 " 245.8 " 219.1 " 95.51 " 52.78 " 19.39 " 5.015" 18
19 7.493" 4.906" 13.83 " 15.55 " 33.22 " 477.4 " 219.9 # 198.4 " 79.86 " 49.40 " 16.05 " 4.024" 19
20 6.767" 3.208" 13.47 " 14.57 " 31.71 " 731.2 " 184.2 # 191.5 " 79.24 " 46.00 " 15.45 " 4.680" 20
21 3.266" 4.315" 10.73 " 13.33 " 30.48 " 490.2 " 151.3 # 234.9 " 77.56 " 44.19 " 15.63 " 4.637" 21
22 3.716" 3.704" 9.871" 14.82 " 29.95 " 342.5 " 126.5 # 242.6 " 73.56 " 42.13 " 16.25 " 4.045" 22
23 3.715" 3.449" 11.98 " 15.57 " 29.23 " 272.7 " 139.5 # 210.4 " 78.45 " 40.18 " 17.47 " 4.362" 23
24 4.623" 5.716" 13.03 " 15.92 " 29.39 " 229.3 " 234.6 # 189.8 " 96.70 " 39.32 " 15.90 " 5.898" 24
25 4.906" 3.787" 11.40 " 16.27 " 29.05 " 200.5 " 272.1 # 216.1 " 124.3 " 37.41 " 15.37 " 7.519" 25
26 4.392" 4.306" 13.08 " 26.86 " 28.07 " 183.9 " 240.4 # 313.4 " 142.2 " 35.39 " 16.29 " 7.971" 26
27 5.438" 3.695" 12.15 " 72.14 " 27.78 " 162.6 # 212.2 # 290.7 " 161.9 " 32.86 " 14.38 " 10.15 " 27
28 4.836" 4.646" 11.27 " 53.63 " 26.98 " 145.4 # 192.2 # 254.1 " 157.2 " 30.82 " 15.63 " 8.969" 28
29 3.514" 10.57 " 53.24 " 26.17 " 146.8 # 243.0 # 258.7 " 139.3 " 30.11 " 15.77 " 9.189" 29
30 3.714" 9.531" 58.26 " 25.44 " 148.3 # 624.0 " 367.2 " 119.7 " 31.42 " 17.79 " 9.757" 30
31 5.354" 9.486" 24.97 " 783.7 " 332.0 " 32.85 " 9.362" 31
Mean 5.171" 3.827" 7.634" 22.12 " 34.99 " 143.2 # 347.2 # 298.5 " 131.2 " 53.23 " 20.46 " 8.637"
Median 4.837" 3.711" 8.267" 16.07 " 33.93 " 55.55 # 265.9 # 258.7 " 121.7 " 48.13 " 17.80 " 8.640"
Maximum 8.070" 5.716" 13.83 " 72.14 " 52.73 " 731.2 #1087 # 735.2 " 288.0 " 102.2 " 34.12 " 15.44 "
Minimum 3.266" 2.690" 2.691" 11.36 " 24.97 " 23.80 # 126.5 # 171.7 " 73.56 " 30.11 " 14.38 " 4.024"
Total 160.3 " 107.2 " 236.6 " 663.6 " 1085 " 4297 #10763 # 9254 " 3936 " 1650 " 613.8 " 267.7 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 90.50 # " ... Relative Uncertainty +/-10%
Ann. Median 26.98 # # ... Relative Uncertainty +/-15%
Annual Total 33034 #
Maximum Minimum
Daily 1087 # 2.690#
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1988
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 6.816" 2.767" 1.623" 4.515" 15.24 " 481.4 " 713.7 " 692.0 " 882.4 "1559 " 168.1 " 30.39 " 1
2 6.453" 2.466" 1.833" 4.922" 15.50 "1028 " 601.3 " 627.7 " 742.2 "1334 " 258.1 " 33.72 " 2
3 6.027" 2.137" 2.202" 4.279" 13.90 " 975.3 " 521.9 " 561.3 " 645.7 "1294 " 268.7 " 31.26 " 3
4 4.729" 2.018" 3.190" 6.085" 13.95 " 619.5 " 463.2 " 505.4 " 566.9 "1353 " 253.6 " 31.59 $ 4
5 3.833" 2.225" 2.606" 6.081" 13.07 " 414.5 " 467.9 " 449.4 " 608.5 "1200 " 207.2 " 28.93 $ 5
6 3.337" 3.263" 2.543" 4.512" 13.18 " 323.1 " 499.7 " 405.8 "1347 "1084 " 183.5 " 28.64 $ 6
7 3.704" 2.651" 2.058" 6.016" 13.10 " 290.5 " 645.3 " 374.2 "1280 "1147 " 188.5 " 29.95 $ 7
8 3.269" 3.032" 1.664" 3.306" 12.41 " 361.8 " 846.3 " 345.7 "1042 "1011 " 200.8 " 28.80 $ 8
9 3.686" 2.892" 2.422" 4.478" 13.48 " 393.2 " 741.6 " 328.8 " 869.1 " 845.2 " 180.2 " 27.14 $ 9
10 3.321" 1.899" 2.190" 5.886" 11.90 "1281 " 597.0 " 412.7 " 750.6 " 747.7 " 159.5 " 26.02 $ 10
11 3.543" 1.762" 2.897" 4.648" 12.34 "1373 " 514.0 " 504.8 " 630.1 " 667.7 " 143.4 " 25.14 $ 11
12 3.906" 1.013" 3.239" 5.338" 18.88 "1046 " 464.1 "1196 " 551.2 " 586.1 " 140.6 " 24.04 $ 12
13 3.676" 1.985" 2.323" 4.728" 37.25 "2087 " 523.8 "2863 " 499.4 " 515.2 " 159.2 " 23.24 $ 13
14 3.153" 2.093" 2.679" 5.070" 51.96 "1957 " 577.4 "2288 " 457.5 " 460.9 " 156.8 " 21.84 $ 14
15 2.547" 1.451" 2.388" 5.984" 54.19 "1606 " 626.6 "2587 " 486.7 " 412.8 " 134.7 " 20.36 $ 15
16 2.860" 1.291" 2.649" 6.240" 62.42 "2537 " 654.0 "3162 " 481.6 " 374.1 " 118.5 " 19.94 $ 16
17 3.536" 1.368" 2.083" 5.620" 51.92 "2112 " 830.3 "2179 " 435.7 " 344.9 " 104.1 " 19.44 $ 17
18 3.546" 1.083" 2.563" 5.825" 45.70 "1533 "1907 "1546 " 421.0 " 321.4 " 91.08 " 19.17 $ 18
19 3.205" 1.348" 2.651" 5.883" 40.56 "1195 "1679 "1220 " 415.2 " 310.0 " 81.41 " 18.79 $ 19
20 3.133" 1.023" 3.401" 4.499" 49.60 "1604 "1149 "1069 " 416.7 " 343.9 " 74.39 " 18.03 $ 20
21 3.152" 0.922" 2.615" 8.992" 84.51 "1287 " 881.3 "1039 " 449.7 " 383.1 " 68.42 " 17.50 $ 21
22 3.401" 1.477" 2.627" 9.330" 94.02 " 905.0 " 725.0 " 870.3 "1083 " 353.3 " 64.77 " 17.39 $ 22
23 2.989" 1.360" 2.878" 9.508" 76.78 " 704.3 " 988.6 " 754.9 "1597 " 314.6 " 60.65 " 16.65 $ 23
24 2.515" 1.284" 6.120" 9.705" 62.46 "1107 "3185 " 749.0 "1228 " 275.4 " 56.92 " 16.21 $ 24
25 2.925" 1.403" 7.082" 10.01 " 56.81 "4802 &3697 "1244 " 999.8 " 248.3 " 53.86 " 16.06 $ 25
26 2.808" 1.395" 7.663" 11.47 " 54.14 "5049 &2227 "1608 " 988.0 " 228.0 " 50.76 " 15.72 $ 26
27 2.719" 1.557" 8.291" 11.81 " 51.85 "2448 "1574 "1215 " 868.1 " 212.0 " 49.37 " 15.22 $ 27
28 2.775" 1.632" 8.188" 17.53 " 51.07 "1578 "1377 " 926.2 "1019 " 199.5 " 45.71 " 11.96 $ 28
29 1.823" 1.595" 6.705" 15.70 " 50.32 "1129 "1170 "1142 "1299 " 185.0 " 42.30 " 9.938# 29
30 2.630" 5.063" 15.35 " 47.38 " 872.7 " 940.6 "1378 "1675 " 170.1 " 37.44 " 11.75 # 30
31 2.870" 5.840" 91.61 " 793.9 "1112 " 159.7 " 10.70 # 31
Mean 3.512" 1.807" 3.622" 7.444" 41.34 "1437 &1051 "1140 " 824.5 " 601.3 " 126.8 " 21.47 $
Median 3.269" 1.595" 2.649" 5.935" 47.38 "1162 & 741.6 "1039 " 746.4 " 383.1 " 126.6 " 19.94 $
Maximum 6.816" 3.263" 8.291" 17.53 " 94.02 "5049 &3697 "3162 "1675 "1559 " 268.7 " 33.72 $
Minimum 1.823" 0.922" 1.623" 3.306" 11.90 " 290.5 & 463.2 " 328.8 " 415.2 " 159.7 " 37.44 " 9.938$
Total 108.9 " 52.39" 112.3 " 223.3 " 1282 "43098 &32582 "35355 "24736 "18641 " 3803 " 665.5 $
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 439.0 & " ... Relative Uncertainty +/-10%
Ann. Median 56.87 & # ... Relative Uncertainty +/-15%
Annual Total 160659 & $ ... Relative Uncertainty +/-20%
& ... Relative Uncertainty +/-30%
Maximum Minimum
Daily 5049 & 0.922&
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1989
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 9.735# 4.504" 28.85 " 10.38 " 17.92 " 47.98 " 146.2 " 468.6 " 558.9 " 245.9 " 144.8 " 12.46 " 1
2 8.877# 5.983" 26.33 " 15.82 " 16.89 " 45.34 " 132.4 " 393.7 " 898.5 " 271.3 " 132.6 " 12.94 " 2
3 7.983# 5.440" 23.20 " 17.06 " 16.98 " 43.47 " 110.0 " 373.1 " 800.4 " 365.8 " 119.3 " 11.92 " 3
4 6.403# 4.562" 19.16 " 18.14 " 15.63 " 41.30 " 92.89 " 345.3 " 609.2 " 404.2 " 107.9 " 11.17 " 4
5 8.460" 4.371" 19.95 " 19.47 " 14.67 " 40.80 " 81.27 " 311.0 " 494.2 " 536.7 " 97.45 " 10.32 " 5
6 8.841# 4.817" 18.79 " 18.88 " 14.67 " 45.60 " 72.28 " 282.7 " 427.9 " 561.8 " 89.20 " 9.787" 6
7 7.635# 4.277" 17.00 " 17.30 " 15.93 " 45.60 " 67.62 " 259.5 " 405.4 " 507.7 " 81.34 " 9.509" 7
8 6.303# 3.373" 14.80 " 18.20 " 13.69 " 57.58 " 65.21 " 235.3 " 427.1 " 449.3 " 73.82 " 8.834" 8
9 6.288# 4.022" 14.59 " 17.81 " 13.05 " 56.89 " 65.88 " 215.4 " 410.6 " 424.2 " 68.97 " 8.061" 9
10 7.470# 4.892" 12.20 " 16.89 " 15.17 " 48.01 " 65.81 " 199.0 " 362.4 " 378.4 " 62.61 " 7.926" 10
11 6.689# 4.953" 9.960" 14.21 " 16.19 " 42.99 " 62.58 " 182.5 " 320.9 " 331.0 " 62.92 " 10.69 " 11
12 7.496# 6.497" 9.881" 13.74 " 15.99 " 42.04 " 64.39 " 169.8 " 281.0 " 295.7 " 61.26 " 8.489" 12
13 7.968# 5.628" 9.644" 12.58 " 14.10 " 46.46 " 68.48 " 168.7 " 256.2 " 277.3 " 63.80 " 6.794" 13
14 8.270# 5.369" 7.322" 13.70 " 15.72 " 49.46 " 77.35 " 172.8 " 239.1 " 274.4 " 75.06 " 6.161" 14
15 7.249# 5.683" 4.988" 12.90 " 17.84 " 49.50 " 95.76 " 168.7 " 239.9 " 278.1 " 86.15 " 4.945" 15
16 8.699# 8.680" 6.430" 14.07 " 37.41 " 48.08 " 110.9 " 158.6 " 239.1 " 256.1 " 77.81 " 4.937" 16
17 8.189# 9.333" 4.899" 13.18 " 39.09 " 44.04 " 99.73 " 165.1 " 219.9 " 254.2 " 65.07 " 5.303" 17
18 10.44 # 11.46 " 4.886" 11.11 " 31.25 " 42.30 " 88.76 "1646 " 224.4 " 360.5 " 55.69 " 6.786" 18
19 8.260# 14.49 " 5.200" 11.10 " 27.00 " 39.51 " 90.97 "2131 " 255.9 " 414.0 " 48.96 " 5.362" 19
20 6.158" 13.60 " 4.458" 9.692" 29.36 " 37.44 " 565.2 "1240 " 315.9 " 364.1 " 43.69 " 5.621" 20
21 4.878" 12.04 " 5.399" 13.59 " 39.12 " 35.52 " 846.2 " 865.9 " 340.6 " 323.5 " 40.99 " 4.684" 21
22 5.215" 8.078" 5.372" 14.07 " 51.88 " 34.57 " 578.0 " 651.6 " 342.8 " 287.4 " 37.49 " 5.462" 22
23 6.462" 6.755" 5.449" 13.64 " 57.83 " 33.68 " 409.1 " 511.1 " 342.7 " 248.9 " 34.06 " 5.075" 23
24 5.646" 6.342" 4.973" 15.27 " 48.25 " 32.82 " 792.5 " 516.2 " 343.3 " 224.2 " 29.66 " 8.529" 24
25 7.735" 8.762" 4.604" 17.20 " 42.56 " 32.28 "1478 " 462.5 " 315.6 " 208.1 " 25.60 " 10.73 " 25
26 7.321" 12.56 " 4.359" 17.39 " 38.17 " 33.56 " 994.4 " 382.5 " 275.9 " 199.4 " 24.12 " 12.20 " 26
27 7.133" 16.87 " 5.168" 17.79 " 38.80 " 33.72 " 828.5 " 339.4 " 252.6 " 190.0 " 22.17 " 13.34 " 27
28 7.365" 26.92 " 8.531" 17.91 " 42.17 " 38.33 "1249 " 310.6 " 258.3 " 181.6 " 20.24 " 12.25 " 28
29 8.958" 5.669" 18.76 " 47.24 " 46.09 "1164 " 302.2 " 276.6 " 174.9 " 18.57 " 10.63 " 29
30 11.90 " 7.356" 18.46 " 63.78 " 91.58 " 785.4 " 497.1 " 258.1 " 170.6 " 13.07 " 9.353" 30
31 9.233" 8.570" 55.56 " 593.9 " 550.9 " 157.7 " 10.41 " 31
Mean 7.718# 8.224" 10.58 " 15.34 " 29.80 " 44.22 " 385.3 " 473.4 " 366.4 " 310.2 " 62.81 " 8.732"
Median 7.635# 6.162" 7.356" 15.54 " 27.00 " 43.23 " 110.0 " 339.4 " 318.4 " 278.1 " 62.76 " 8.834"
Maximum 11.90 # 26.92 " 28.85 " 19.47 " 63.78 " 91.58 "1478 "2131 " 898.5 " 561.8 " 144.8 " 13.34 "
Minimum 4.878# 3.373" 4.359" 9.692" 13.05 " 32.28 " 62.58 " 158.6 " 219.9 " 157.7 " 13.07 " 4.684"
Total 239.3 # 230.3 " 328.0 " 460.3 " 923.9 " 1327 "11943 "14676 "10993 " 9617 " 1884 " 270.7 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 144.9 # " ... Relative Uncertainty +/-10%
Ann. Median 34.57 # # ... Relative Uncertainty +/-15%
Annual Total 52893 #
Maximum Minimum
Daily 2131 # 3.373#
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1990
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 7.649" 4.831" 3.285" 16.87 " 45.25 " 129.9 " 153.5 " 725.2 " 350.4 " 247.1 " 199.8 " 24.98 " 1
2 7.606" 5.590" 4.334" 19.50 " 46.06 " 114.6 " 147.9 "1839 " 335.8 " 224.0 " 190.5 " 23.67 " 2
3 9.011" 6.482" 3.024" 17.42 " 52.40 " 102.2 " 141.7 "2890 " 323.7 " 211.7 " 189.6 " 22.21 " 3
4 7.617" 4.692" 3.937" 18.03 " 47.37 " 93.27 " 135.6 "2839 " 298.3 " 198.8 " 165.6 " 23.33 " 4
5 8.121" 5.031" 5.982" 18.28 " 49.74 " 88.09 " 136.2 "2243 " 278.3 " 187.8 " 144.2 " 24.88 " 5
6 7.706" 3.469" 7.751" 19.81 " 49.14 " 99.75 " 130.9 "1618 " 258.4 " 183.4 " 126.9 " 21.47 " 6
7 6.194" 4.321" 12.02 " 17.81 " 46.44 " 147.0 " 118.1 "1260 " 243.3 " 173.3 " 112.5 " 21.94 " 7
8 6.008" 3.200" 13.80 " 18.11 " 47.36 " 234.9 " 111.5 "1019 " 238.5 " 165.1 " 100.5 " 22.60 " 8
9 7.047" 3.489" 10.97 " 16.72 " 41.89 " 428.7 " 111.4 " 853.2 " 231.1 " 163.6 " 90.67 " 19.60 " 9
10 7.318" 4.293" 8.764" 19.67 " 43.49 " 397.4 " 152.9 " 884.3 " 228.1 " 190.8 " 83.67 " 18.64 " 10
11 9.516" 4.271" 6.360" 23.74 " 38.64 " 491.5 " 290.6 " 955.4 " 219.7 " 202.8 " 74.82 " 15.32 " 11
12 8.559" 4.887" 7.598" 29.48 " 37.31 " 460.9 "1030 " 854.6 " 205.2 " 185.2 " 69.74 " 12.01 " 12
13 9.575" 5.805" 7.995" 29.09 " 39.99 " 468.9 "2924 " 800.5 " 195.8 " 180.8 " 62.18 " 11.08 " 13
14 10.12 " 7.008" 7.237" 26.16 " 76.55 "1876 "2206 " 724.7 " 184.5 " 191.5 " 58.14 " 10.22 " 14
15 7.699" 12.43 " 5.943" 23.52 " 179.3 "1740 "2512 " 629.5 " 175.5 " 188.6 " 55.81 " 8.892" 15
16 6.018" 14.62 " 3.566" 21.92 " 148.6 " 983.0 "3578 " 551.0 " 184.8 " 180.0 " 55.65 " 7.956" 16
17 4.663" 14.86 " 3.571" 20.14 " 117.3 " 642.9 "4455 " 501.7 " 290.7 " 184.3 " 55.30 " 10.14 " 17
18 6.271" 13.24 " 4.281" 19.54 " 98.99 " 492.7 "2412 " 522.6 " 348.0 " 191.4 " 57.57 " 9.285" 18
19 4.570" 13.50 " 3.946" 24.19 " 88.80 " 415.7 "1740 " 765.1 " 340.3 " 178.5 " 60.80 " 6.558" 19
20 3.672" 8.370" 3.937" 29.04 " 80.37 " 368.1 "1984 " 805.7 " 319.9 " 161.5 " 63.32 " 8.145" 20
21 7.162" 8.784" 3.115" 28.45 " 71.20 " 361.4 "4648 & 729.3 " 287.9 " 147.7 " 59.14 " 10.64 " 21
22 6.633" 6.310" 5.024" 28.20 " 64.13 " 278.3 "7955 & 615.5 " 263.7 " 138.9 " 55.75 " 9.292" 22
23 11.80 " 5.187" 5.146" 30.69 " 60.00 " 247.3 "5626 " 537.6 " 300.7 " 128.2 " 52.44 " 7.656" 23
24 10.34 " 6.294" 4.616" 36.83 " 55.84 " 227.1 "4080 " 475.6 " 468.3 " 116.4 " 47.43 " 6.789" 24
25 8.265" 3.503" 6.209" 37.86 " 53.72 " 209.2 "3110 " 435.0 " 617.1 " 109.2 " 40.80 " 10.68 " 25
26 8.239" 3.948" 12.38 " 41.30 " 55.45 " 196.0 "2348 " 408.2 " 525.3 " 100.4 " 37.20 " 8.248" 26
27 5.995" 4.254" 18.41 " 51.32 " 64.40 " 182.7 "1726 " 388.4 " 417.2 " 94.28 " 36.64 " 9.970" 27
28 4.530" 3.924" 21.82 " 44.97 " 141.3 " 169.9 "1349 " 412.0 " 350.2 " 89.57 " 32.05 " 7.288" 28
29 8.100" 21.08 " 43.14 " 219.1 " 161.6 "1112 " 420.7 " 310.2 " 103.5 " 26.61 " 5.827" 29
30 7.922" 17.78 " 43.22 " 192.8 " 157.3 " 963.8 " 409.4 " 275.8 " 186.4 " 24.78 " 4.259" 30
31 5.848" 15.73 " 153.3 " 832.9 " 380.5 " 237.4 " 6.223" 31
Mean 7.412" 6.664" 8.375" 27.17 " 80.84 " 398.9 "1878 & 919.2 " 302.2 " 169.1 " 81.01 " 13.22 "
Median 7.617" 5.109" 6.209" 23.97 " 55.84 " 241.1 "1349 & 725.2 " 289.3 " 180.8 " 59.97 " 10.22 "
Maximum 11.80 " 14.86 " 21.82 " 51.32 " 219.1 "1876 "7955 &2890 " 617.1 " 247.1 " 199.8 " 24.98 "
Minimum 3.672" 3.200" 3.024" 16.72 " 37.31 " 88.09 " 111.4 & 380.5 " 175.5 " 89.57 " 24.78 " 4.259"
Total 229.8 " 186.6 " 259.6 " 815.0 " 2506 "11966 "58222 &28495 " 9067 " 5242 " 2430 " 409.8 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 328.3 & " ... Relative Uncertainty +/-10%
Ann. Median 60.00 & & ... Relative Uncertainty +/-30%
Annual Total 119830 &
Maximum Minimum
Daily 7955 & 3.024&
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1991
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 8.680" 2.873" 14.11 " 13.78 " 14.72 " 268.1 " 525.0 "3568 " 494.7 " 418.6 " 88.33 " 31.10 " 1
2 8.239" 2.781" 13.38 " 14.67 " 15.56 " 208.7 " 994.7 "7863 & 456.5 " 394.5 " 88.13 " 30.85 " 2
3 9.433" 2.972" 7.580" 11.23 " 14.54 " 201.9 "1950 "6564 & 436.0 " 353.4 " 86.39 " 27.63 " 3
4 9.127" 3.154" 6.387" 7.407" 17.33 " 847.9 "2723 "5813 & 460.5 " 323.7 " 89.80 " 24.10 " 4
5 8.539" 3.767" 5.491" 7.021" 17.98 " 847.0 "2081 "3790 " 480.3 " 305.6 " 108.4 " 25.65 " 5
6 5.557" 2.615" 6.070" 7.675" 17.34 " 571.2 "2093 "2524 " 444.9 " 297.3 " 125.5 " 23.64 " 6
7 7.954" 2.010" 5.573" 6.852" 17.76 " 400.8 "1518 "1906 " 484.3 " 276.1 " 117.5 " 23.13 " 7
8 8.274" 3.055" 5.600" 6.814" 17.18 " 308.3 "1069 "1523 " 705.8 " 254.6 " 103.9 " 19.98 " 8
9 6.177" 4.270" 3.987" 10.88 " 16.05 " 256.0 " 837.7 "1248 "1357 " 234.3 " 184.4 " 17.38 " 9
10 5.772" 3.523" 9.867" 18.35 " 16.47 " 225.1 " 715.3 "1047 "1233 " 217.0 " 134.3 " 15.77 " 10
11 4.970" 2.832" 8.279" 22.41 " 16.88 " 256.8 " 593.2 " 896.6 " 928.1 " 201.6 " 93.80 " 17.12 " 11
12 5.016" 3.643" 9.631" 23.31 " 14.96 " 260.9 " 506.7 " 780.4 " 979.7 " 187.2 " 81.86 " 12.41 " 12
13 3.334" 1.994" 6.509" 27.16 " 14.45 " 264.0 " 569.2 " 684.3 "1166 " 174.3 " 80.44 " 10.56 " 13
14 4.231" 2.027" 4.858" 24.48 " 14.19 " 351.6 " 626.4 " 569.2 "1778 " 162.0 " 85.38 " 8.734" 14
15 4.623" 2.562" 6.576" 21.88 " 20.88 " 470.2 " 723.6 " 504.8 "1740 " 148.4 " 98.39 " 7.894" 15
16 4.490" 3.751" 5.796" 23.36 " 31.46 " 445.2 "3401 " 465.6 "1532 " 138.3 " 107.6 " 7.299" 16
17 5.889" 3.930" 4.519" 22.37 " 25.00 " 501.4 "2987 " 435.4 "1268 " 130.9 " 105.1 " 6.513" 17
18 4.316" 2.959" 4.310" 19.40 " 22.61 " 534.9 "2178 " 515.6 "1082 " 130.4 " 98.74 " 6.428" 18
19 3.220" 2.794" 5.398" 17.11 " 23.90 " 445.0 "1558 " 653.0 "1170 " 193.4 " 87.35 " 8.274" 19
20 3.338" 1.822" 5.925" 17.46 " 25.65 " 385.7 "1160 " 694.6 "1149 " 285.0 " 77.20 " 7.716" 20
21 2.804" 2.418" 5.771" 16.65 " 41.37 " 430.9 " 972.2 " 623.8 " 941.0 " 289.1 " 68.98 " 3.916" 21
22 3.384" 2.766" 5.904" 16.83 " 83.60 " 588.4 " 840.3 " 560.0 " 776.0 " 245.8 " 63.31 " 6.528" 22
23 3.011" 2.150" 5.564" 16.26 " 97.27 "1452 " 889.8 " 506.7 " 641.2 " 205.9 " 57.85 " 8.017" 23
24 5.338" 3.166" 6.286" 16.55 " 93.16 "1350 "2021 " 457.7 " 560.3 " 178.0 " 52.05 " 10.09 " 24
25 4.251" 5.036" 4.436" 16.41 " 77.07 " 883.8 "2387 " 418.6 " 499.7 " 155.8 " 44.48 " 15.38 " 25
26 4.131" 8.036" 5.084" 16.66 " 63.45 " 667.1 "1786 " 473.3 " 450.7 " 139.4 " 40.02 " 18.02 " 26
27 5.279" 13.67 " 6.623" 15.94 " 57.87 " 824.9 "1562 " 795.4 " 409.6 " 127.0 " 39.29 " 17.78 " 27
28 3.807" 15.97 " 7.834" 14.93 " 56.93 "1115 "1249 " 798.0 " 378.3 " 116.8 " 38.54 " 21.20 " 28
29 3.138" 9.620" 16.49 " 101.7 " 852.7 "1425 " 716.9 " 353.1 " 108.5 " 35.30 " 14.86 " 29
30 1.737" 9.469" 15.13 " 272.5 " 631.1 "2336 " 608.7 " 353.3 " 100.6 " 32.28 " 11.89 " 30
31 2.247" 12.06 " 325.0 " 2072 " 530.7 " 94.79 " 12.08 " 31
Mean 5.171" 4.020" 7.048" 16.18 " 53.06 " 561.5 "1495 "1566 & 823.6 " 212.5 " 83.82 " 15.22 "
Median 4.623" 2.965" 6.070" 16.52 " 22.61 " 457.7 "1425 " 694.6 & 673.5 " 193.4 " 86.87 " 14.86 "
Maximum 9.433" 15.97 " 14.11 " 27.16 " 325.0 "1452 "3401 "7863 &1778 " 418.6 " 184.4 " 31.10 "
Minimum 1.737" 1.822" 3.987" 6.814" 14.19 " 201.9 " 506.7 " 418.6 & 353.1 " 94.79 " 32.28 " 3.916"
Total 160.3 " 112.5 " 218.5 " 485.5 " 1645 "16846 "46350 "48536 &24708 " 6588 " 2514 " 471.9 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 407.2 & " ... Relative Uncertainty +/-10%
Ann. Median 63.31 & & ... Relative Uncertainty +/-30%
Annual Total 148637 &
Maximum Minimum
Daily 7863 & 1.737&
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1992
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 8.924" 3.120" 4.236" 12.01 " 17.12 " 56.97 "2094 " 717.0 "1436 " 293.4 " 57.05 " 61.51 " 1
2 11.62 " 3.016" 3.443" 13.12 " 17.66 " 50.99 "1982 " 619.9 "1196 " 278.6 " 52.86 " 61.18 " 2
3 9.119" 3.238" 2.569" 15.17 " 19.83 " 46.96 "1668 " 567.8 "1680 " 267.9 " 49.27 " 60.07 " 3
4 8.007" 2.900" 5.005" 14.98 " 23.14 " 44.19 "1262 " 552.9 "1765 " 264.8 " 45.83 " 56.38 " 4
5 6.489" 3.164" 4.232" 13.75 " 24.82 " 42.18 "1203 " 607.7 "1498 " 260.1 " 43.84 " 48.33 " 5
6 6.313" 2.620" 6.791" 10.94 " 25.02 " 40.39 "1056 " 683.5 "1324 " 253.6 " 42.81 " 41.36 " 6
7 6.354" 3.774" 6.559" 12.99 " 29.46 " 38.24 " 861.8 " 841.7 "1098 " 244.6 " 46.65 " 40.38 " 7
8 4.094" 7.915" 5.713" 15.62 " 32.24 " 36.74 " 729.0 " 811.5 "1174 " 230.6 " 49.28 " 38.01 " 8
9 4.423" 12.68 " 7.084" 16.03 " 34.98 " 35.56 " 638.9 " 986.5 "3122 " 217.5 " 54.17 " 35.77 " 9
10 5.374" 16.84 " 7.305" 15.15 " 32.57 " 35.04 " 705.0 "1784 "2979 " 208.3 " 52.88 " 33.37 " 10
11 5.105" 13.16 " 5.856" 15.38 " 30.02 " 52.80 " 818.3 "2071 "1936 " 200.0 " 47.43 " 29.26 " 11
12 5.110" 11.23 " 5.923" 15.28 " 28.43 " 192.4 " 694.9 "2132 "1429 " 194.7 " 36.44 " 27.13 " 12
13 4.473" 12.14 " 6.882" 14.48 " 27.16 " 367.0 "1540 "1575 "1124 " 187.0 " 43.05 " 24.03 " 13
14 4.219" 13.16 " 6.014" 13.59 " 26.79 " 271.5 "2317 "1340 " 943.9 " 178.9 " 48.10 " 25.38 " 14
15 3.488" 12.67 " 5.552" 11.53 " 25.79 " 280.6 "1653 "1188 " 820.4 " 166.6 " 58.41 " 21.70 " 15
16 3.453" 10.05 " 11.77 " 11.70 " 24.72 " 398.9 "1176 "1127 " 751.2 " 155.4 " 84.52 " 20.30 " 16
17 3.404" 11.07 " 12.82 " 11.25 " 23.82 " 561.1 "1646 "1067 " 711.9 " 146.3 " 84.96 " 18.92 " 17
18 3.401" 9.508" 11.80 " 11.75 " 23.37 "1025 "1560 " 941.0 " 630.9 " 138.5 " 81.49 " 16.52 " 18
19 6.079" 7.230" 15.69 " 13.96 " 26.16 " 736.2 "1181 " 812.8 " 555.7 " 125.2 " 86.97 " 17.35 " 19
20 9.383" 6.519" 15.77 " 13.55 " 26.14 " 519.7 "1029 " 728.2 " 500.5 " 120.9 " 125.7 " 16.51 " 20
21 7.340" 7.472" 17.74 " 14.46 " 28.98 " 632.2 " 862.8 " 676.4 " 475.2 " 110.3 " 201.2 " 14.86 " 21
22 6.739" 5.754" 19.02 " 13.23 " 29.50 " 798.9 " 723.5 " 660.8 " 554.9 " 100.9 " 191.8 " 11.67 " 22
23 9.210" 6.559" 20.45 " 13.42 " 35.45 " 578.6 " 616.5 " 592.7 " 621.6 " 93.85 " 151.2 " 11.73 " 23
24 9.277" 5.104" 20.06 " 14.64 " 49.14 " 823.0 " 538.4 " 547.1 " 561.6 " 86.90 " 122.5 " 9.207" 24
25 7.238" 8.712" 18.67 " 14.45 " 68.33 "1026 " 617.6 " 623.9 " 490.4 " 80.41 " 103.7 " 9.284" 25
26 5.160" 6.133" 17.90 " 13.90 " 74.22 "1439 " 988.9 " 900.5 " 443.3 " 77.59 " 88.97 " 12.11 " 26
27 3.979" 4.366" 16.75 " 14.60 " 63.88 "1574 "1045 "1124 " 406.4 " 74.72 " 76.79 " 11.40 " 27
28 3.789" 3.705" 14.21 " 16.91 " 55.95 "3379 "1131 "2434 " 376.1 " 72.42 " 67.80 " 8.189" 28
29 3.595" 4.963" 13.48 " 17.31 " 55.57 "3439 "1195 "2415 " 339.4 " 71.46 " 63.46 " 8.012" 29
30 3.223" 14.16 " 17.84 " 62.43 "2044 " 980.8 "1634 " 314.0 " 66.32 " 62.41 " 8.708" 30
31 3.134" 9.849" 62.87 " 818.2 "1547 " 62.49 " 9.829" 31
Mean 5.855" 7.543" 10.75 " 14.10 " 35.66 " 685.6 "1140 "1107 "1042 " 162.3 " 77.38 " 26.08 "
Median 5.160" 6.559" 9.849" 14.20 " 28.98 " 382.9 "1045 " 900.5 " 785.8 " 155.4 " 60.41 " 20.30 "
Maximum 11.62 " 16.84 " 20.45 " 17.84 " 74.22 "3439 "2317 "2434 "3122 " 293.4 " 201.2 " 61.51 "
Minimum 3.134" 2.620" 2.569" 10.94 " 17.12 " 35.04 " 538.4 " 547.1 " 314.0 " 62.49 " 36.44 " 8.012"
Total 181.5 " 218.8 " 333.3 " 423.0 " 1106 "20567 "35333 "34310 "31258 " 5030 " 2322 " 808.5 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 360.4 " " ... Relative Uncertainty +/-10%
Ann. Median 46.81 "
Annual Total 131890 "
Maximum Minimum
Daily 3439 " 2.569"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1993
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 7.967" 3.073" 2.791" 21.98 " 20.90 " 56.61 " 114.0 "1111 " 408.9 " 368.6 " 110.9 " 20.56 " 1
2 9.467" 2.282" 2.150" 21.53 " 21.99 " 50.96 " 160.1 " 817.9 " 363.4 " 496.0 " 104.2 " 20.62 " 2
3 9.084" 2.648" 3.380" 31.63 " 22.49 " 47.47 " 242.6 " 649.0 " 332.8 " 506.2 " 96.52 " 19.37 " 3
4 7.964" 2.548" 2.278" 41.88 " 22.84 " 46.84 " 206.9 " 663.2 " 829.1 " 431.1 " 84.77 " 18.87 " 4
5 7.867" 2.541" 4.736" 54.28 " 23.48 " 43.15 " 161.6 " 842.3 "1171 " 371.2 " 78.28 " 15.35 " 5
6 6.357" 2.440" 4.859" 49.65 " 23.27 " 40.82 " 143.4 "2010 "1009 " 329.4 " 70.55 " 15.14 " 6
7 5.675" 2.519" 3.208" 41.59 " 23.24 " 38.92 " 123.9 "2719 "1287 " 313.8 " 63.86 " 11.82 " 7
8 3.512" 3.435" 2.642" 37.66 " 23.38 " 37.84 " 111.1 "1891 "1710 " 311.1 " 58.85 " 12.92 " 8
9 3.081" 2.177" 4.533" 34.74 " 23.20 " 36.76 " 109.2 "1711 "1411 " 299.1 " 63.56 " 12.48 " 9
10 4.021" 2.688" 3.692" 34.27 " 22.77 " 36.91 " 262.8 "1399 " 991.4 " 267.9 " 75.32 " 11.84 " 10
11 3.586" 2.835" 3.237" 32.70 " 21.28 " 38.57 " 997.4 "1035 " 770.3 " 247.1 " 83.50 " 9.854" 11
12 2.843" 3.046" 2.699" 35.72 " 21.62 " 36.89 "1467 "1209 " 824.7 " 224.6 " 84.24 " 9.952" 12
13 2.924" 1.997" 2.432" 33.51 " 20.86 " 35.55 " 931.9 "1108 "1375 " 203.6 " 77.53 " 9.652" 13
14 4.633" 2.175" 3.816" 30.15 " 19.98 " 33.93 " 593.5 " 875.6 "1182 " 188.7 " 70.60 " 9.918" 14
15 2.951" 1.617" 6.392" 28.18 " 18.49 " 33.92 " 483.9 " 737.2 " 873.2 " 178.2 " 65.55 " 8.803" 15
16 3.950" 1.924" 5.135" 27.62 " 19.99 " 43.95 " 482.4 " 664.2 " 977.7 " 168.7 " 58.95 " 6.907" 16
17 3.987" 1.892" 4.533" 26.86 " 20.98 " 48.86 " 483.1 " 582.0 "1090 " 166.3 " 53.55 " 6.067" 17
18 4.570" 1.973" 7.146" 28.47 " 25.77 " 54.27 " 390.4 " 516.5 "1077 " 336.4 " 49.81 " 6.029" 18
19 5.983" 1.979" 18.58 " 26.55 " 32.42 " 51.18 " 318.8 " 459.0 "1022 " 214.2 " 46.16 " 4.552" 19
20 4.158" 2.511" 39.64 " 25.68 " 49.90 " 49.54 " 270.9 " 411.9 " 848.8 " 164.1 " 41.23 " 4.555" 20
21 3.670" 2.035" 127.9 " 25.29 " 69.46 " 48.57 " 240.9 " 373.2 " 711.3 " 144.8 " 39.10 " 4.873" 21
22 3.104" 2.486" 96.98 " 24.41 " 64.00 " 46.84 " 546.4 " 336.5 " 606.4 " 131.5 " 34.12 " 5.072" 22
23 3.536" 2.735" 68.26 " 24.98 " 54.49 " 44.76 "1010 " 312.0 " 548.8 " 121.6 " 30.84 " 5.115" 23
24 3.322" 2.891" 50.87 " 29.88 " 47.04 " 42.19 " 692.9 " 286.6 " 509.3 " 118.5 " 26.77 " 4.025" 24
25 2.723" 2.739" 40.81 " 23.87 " 45.23 " 40.15 " 519.7 " 293.2 " 451.9 " 119.2 " 26.67 " 4.321" 25
26 2.173" 3.300" 35.49 " 23.62 " 39.64 " 40.65 " 692.9 " 337.1 " 400.9 " 119.9 " 27.11 " 5.585" 26
27 1.340" 3.331" 30.91 " 22.66 " 37.82 " 50.23 "1313 " 320.2 " 359.7 " 119.7 " 25.52 " 5.252" 27
28 1.965" 2.716" 28.17 " 22.49 " 40.44 " 80.47 "1520 " 293.7 " 329.8 " 121.4 " 22.41 " 8.351" 28
29 2.143" 25.88 " 22.08 " 44.24 " 118.9 "1515 " 304.6 " 316.7 " 125.9 " 22.55 " 6.131" 29
30 2.163" 25.16 " 21.54 " 47.39 " 118.6 "1790 " 407.7 " 344.9 " 120.9 " 23.69 " 6.348" 30
31 3.162" 23.75 " 55.08 " 1417 " 448.7 " 116.6 " 3.681" 31
Mean 4.319" 2.519" 22.00 " 30.18 " 33.02 " 49.81 " 623.0 " 810.5 " 804.5 " 230.5 " 57.22 " 9.484"
Median 3.586" 2.530" 5.135" 27.90 " 23.38 " 44.36 " 483.1 " 649.0 " 826.9 " 188.7 " 58.90 " 8.351"
Maximum 9.467" 3.435" 127.9 " 54.28 " 69.46 " 118.9 "1790 "2719 "1710 " 506.2 " 110.9 " 20.62 "
Minimum 1.340" 1.617" 2.150" 21.53 " 18.49 " 33.92 " 109.2 " 286.6 " 316.7 " 116.6 " 22.41 " 3.681"
Total 133.9 " 70.53" 682.0 " 905.5 " 1024 " 1494 "19312 "25125 "24134 " 7146 " 1717 " 294.0 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 224.8 " " ... Relative Uncertainty +/-10%
Ann. Median 40.15 "
Annual Total 82038 "
Maximum Minimum
Daily 2719 " 1.340"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1994
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 5.062" 1.860" 3.334" 6.055" 12.36 " 116.3 "1263 " 364.2 " 300.4 " 155.3 " 36.07 " 13.04 " 1
2 5.649" 3.344" 3.526" 7.726" 11.28 " 122.9 "1437 " 338.3 " 311.3 " 157.5 " 34.26 " 11.79 " 2
3 3.830" 3.331" 3.252" 6.286" 10.17 " 157.1 "1093 " 357.7 " 381.5 " 152.6 " 32.87 " 10.43 " 3
4 3.404" 3.107" 2.529" 5.688" 8.823" 129.1 " 951.5 " 849.4 " 361.9 " 147.4 " 31.94 " 10.23 " 4
5 4.119" 2.381" 2.947" 6.629" 9.505" 101.8 " 879.7 "1102 " 326.8 " 141.7 " 28.96 " 9.190" 5
6 3.146" 2.681" 3.257" 6.024" 9.400" 85.82 "1174 " 837.1 " 299.5 " 130.7 " 24.74 " 11.87 " 6
7 3.048" 3.214" 3.966" 6.703" 9.872" 78.20 "1220 " 645.5 " 293.1 " 122.1 " 23.84 " 8.960" 7
8 3.328" 4.059" 5.713" 6.923" 10.28 " 75.67 "1683 " 537.3 " 276.9 " 113.1 " 24.55 " 9.321" 8
9 3.939" 3.732" 4.369" 7.316" 11.40 " 137.4 "2062 " 472.6 " 252.0 " 106.3 " 23.91 " 7.624" 9
10 4.565" 8.044" 3.740" 7.044" 10.31 " 161.4 "1438 " 463.9 " 267.7 " 99.13 " 21.47 " 6.918" 10
11 4.554" 5.863" 3.254" 6.736" 10.52 " 151.7 " 984.7 " 956.7 " 560.7 " 88.46 " 21.82 " 10.12 " 11
12 4.151" 5.473" 2.492" 4.830" 8.312" 159.1 " 744.1 "1322 " 592.1 " 86.07 " 20.11 " 8.156" 12
13 3.543" 4.546" 3.738" 5.974" 10.81 " 145.6 " 679.5 " 935.8 " 488.3 " 82.12 " 19.06 " 7.945" 13
14 3.190" 4.893" 3.766" 5.026" 13.36 " 128.1 " 818.8 " 702.3 " 430.3 " 87.10 " 18.91 " 6.524" 14
15 3.525" 5.141" 5.756" 6.569" 15.74 " 109.7 " 848.0 " 583.7 " 369.8 " 96.89 " 17.69 " 8.566" 15
16 3.474" 3.987" 4.128" 6.434" 17.06 " 97.29 "1449 " 502.7 " 322.0 " 97.51 " 16.01 " 8.706" 16
17 2.984" 5.307" 4.747" 7.467" 16.64 " 89.89 "2109 " 438.9 " 289.7 " 89.49 " 16.58 " 6.795" 17
18 3.104" 3.958" 3.665" 5.710" 16.77 " 84.84 "1581 " 392.6 " 263.1 " 79.57 " 14.17 " 5.878" 18
19 3.052" 3.251" 3.070" 6.668" 16.69 " 104.3 "1065 " 353.4 " 238.2 " 72.57 " 14.51 " 5.147" 19
20 2.400" 2.974" 3.069" 6.832" 18.87 " 136.6 " 816.8 " 321.9 " 217.4 " 66.98 " 11.76 " 6.403" 20
21 1.842" 3.157" 3.741" 6.883" 21.85 " 222.5 " 682.4 " 307.3 " 201.1 " 62.23 " 11.28 " 5.353" 21
22 2.392" 3.504" 5.218" 5.416" 22.09 " 337.4 " 982.7 " 680.5 " 185.6 " 60.46 " 12.01 " 6.350" 22
23 2.257" 4.030" 4.741" 9.032" 26.95 " 293.1 "1089 " 485.5 " 173.2 " 57.68 " 11.87 " 5.341" 23
24 3.259" 3.376" 6.040" 10.43 " 35.82 " 239.5 " 991.8 " 396.4 " 161.1 " 55.73 " 13.18 " 4.275" 24
25 2.690" 3.671" 6.326" 11.24 " 40.98 " 206.4 " 812.1 " 348.2 " 150.0 " 53.41 " 11.75 " 4.500" 25
26 3.287" 2.484" 5.930" 12.11 " 37.12 " 190.7 " 652.1 " 327.1 " 143.0 " 50.76 " 11.56 " 4.801" 26
27 2.620" 3.300" 5.656" 12.99 " 32.05 " 281.5 " 547.6 " 399.7 " 137.1 " 49.01 " 12.99 " 5.353" 27
28 2.386" 3.024" 6.056" 12.74 " 29.10 " 361.4 " 490.0 " 478.2 " 132.0 " 46.58 " 15.11 " 6.338" 28
29 2.484" 8.637" 11.98 " 40.89 " 582.6 " 456.5 " 417.4 " 130.3 " 41.95 " 15.10 " 6.261" 29
30 1.973" 8.468" 11.18 " 75.44 " 844.5 " 420.2 " 358.7 " 138.4 " 39.27 " 12.88 " 5.782" 30
31 1.854" 7.452" 123.1 " 389.9 " 324.5 " 40.17 " 5.630" 31
Mean 3.262" 3.846" 4.600" 7.754" 23.67 " 197.7 "1026 " 548.4 " 279.8 " 88.06 " 19.37 " 7.535"
Median 3.190" 3.440" 3.966" 6.784" 16.64 " 141.5 " 982.7 " 463.9 " 272.3 " 86.07 " 17.14 " 6.795"
Maximum 5.649" 8.044" 8.637" 12.99 " 123.1 " 844.5 "2109 "1322 " 592.1 " 157.5 " 36.07 " 13.04 "
Minimum 1.842" 1.860" 2.492" 4.830" 8.312" 75.67 " 389.9 " 307.3 " 130.3 " 39.27 " 11.28 " 4.275"
Total 101.1 " 107.7 " 142.6 " 232.6 " 733.6 " 5932 "31811 "17002 " 8395 " 2730 " 581.0 " 233.6 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 186.3 " " ... Relative Uncertainty +/-10%
Ann. Median 16.69 "
Annual Total 68001 "
Maximum Minimum
Daily 2109 " 1.842"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1995
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 5.828" 2.468" 2.868" 5.095" 13.04 " 34.66 " 107.9 "1108 " 451.5 " 142.8 " 62.34 " 16.59 " 1
2 4.531" 1.946" 2.594" 4.105" 11.17 " 34.85 " 100.7 " 877.5 " 440.3 " 133.1 " 68.71 " 15.66 " 2
3 4.357" 2.617" 3.068" 3.194" 12.13 " 33.50 " 95.88 " 726.2 " 812.9 " 125.0 " 70.74 " 13.30 " 3
4 4.330" 3.301" 2.951" 4.170" 11.74 " 31.85 " 93.23 " 592.8 "1286 " 118.4 " 67.95 " 13.65 " 4
5 4.725" 2.673" 2.226" 4.273" 12.25 " 32.25 " 92.89 " 494.1 "1022 " 112.2 " 63.62 " 13.52 " 5
6 4.503" 2.372" 2.416" 4.851" 12.62 " 38.44 " 112.8 " 433.9 " 906.2 " 107.7 " 61.53 " 11.58 " 6
7 3.676" 2.855" 2.761" 4.096" 12.74 " 55.42 " 143.2 " 389.9 "1084 " 102.5 " 57.45 " 10.66 " 7
8 3.870" 2.555" 2.345" 4.486" 11.54 " 112.3 " 599.6 " 361.4 " 947.2 " 97.74 " 54.38 " 10.22 " 8
9 3.239" 2.007" 2.357" 4.334" 13.29 " 198.9 "1231 " 753.6 " 792.9 " 96.39 " 52.32 " 8.896" 9
10 3.557" 1.638" 2.059" 5.291" 17.50 " 197.9 "1183 "1228 " 704.9 " 95.96 " 51.26 " 8.309" 10
11 3.302" 2.373" 2.760" 6.294" 20.81 " 155.6 " 804.4 "1072 " 608.1 " 106.7 " 48.28 " 6.705" 11
12 3.006" 2.161" 2.584" 4.976" 22.56 " 127.3 " 944.0 " 928.7 " 550.0 " 134.0 " 46.94 " 7.297" 12
13 3.206" 2.247" 2.122" 6.870" 23.80 " 111.2 "1557 "1321 " 525.9 " 142.8 " 42.89 " 8.521" 13
14 2.980" 2.371" 2.851" 9.324" 24.33 " 100.5 "1159 "1308 " 484.0 " 130.9 " 39.56 " 7.636" 14
15 3.135" 2.723" 3.005" 9.026" 26.01 " 90.71 " 855.1 " 979.5 " 462.0 " 117.5 " 38.35 " 8.023" 15
16 2.495" 2.667" 2.546" 11.21 " 23.47 " 83.34 " 665.5 " 770.6 " 424.7 " 103.7 " 37.32 " 9.532" 16
17 2.838" 2.253" 2.500" 12.90 " 28.22 " 75.84 " 533.8 " 874.2 " 365.5 " 104.5 " 32.44 " 8.326" 17
18 2.956" 2.692" 2.163" 14.70 " 38.58 " 68.89 " 458.7 "1185 " 342.2 " 186.2 " 30.39 " 8.770" 18
19 2.677" 1.677" 2.020" 16.90 " 32.09 " 66.32 " 941.7 "1036 " 339.6 " 272.8 " 29.76 " 7.032" 19
20 2.954" 1.820" 2.644" 15.23 " 29.99 " 63.47 "2886 "1117 " 330.1 " 217.1 " 25.73 " 8.078" 20
21 3.185" 2.019" 2.824" 12.18 " 28.64 " 60.41 "3454 "1051 " 304.2 " 164.5 " 24.11 " 10.34 " 21
22 2.908" 2.099" 2.644" 13.28 " 29.73 " 64.20 "2016 "1026 " 276.4 " 134.0 " 18.71 " 11.70 " 22
23 2.346" 2.069" 2.373" 12.74 " 40.28 " 90.13 "1275 " 982.3 " 256.0 " 115.2 " 20.27 " 12.45 " 23
24 2.841" 1.794" 3.313" 12.96 " 46.33 " 149.3 "1146 " 984.0 " 233.1 " 100.2 " 20.30 " 18.72 " 24
25 2.644" 2.467" 5.335" 12.12 " 42.02 " 160.6 "1665 " 948.5 " 215.3 " 89.34 " 18.85 " 153.7 " 25
26 2.894" 3.229" 4.096" 10.83 " 38.63 " 176.6 "1588 " 857.6 " 197.4 " 81.74 " 21.17 " 64.98 " 26
27 2.402" 2.411" 2.787" 11.80 " 35.51 " 184.9 "1168 " 766.0 " 183.4 " 73.19 " 19.42 " 41.03 " 27
28 2.234" 1.940" 4.522" 11.70 " 37.84 " 153.5 " 974.0 " 663.6 " 171.4 " 67.08 " 20.19 " 31.92 " 28
29 2.309" 4.747" 11.63 " 39.32 " 134.5 "1456 " 583.0 " 161.7 " 63.28 " 19.18 " 36.55 " 29
30 2.447" 4.071" 11.75 " 35.80 " 117.1 "2039 " 527.6 " 152.5 " 62.09 " 19.61 " 28.65 " 30
31 2.004" 3.908" 34.46 " 1572 " 490.6 " 62.58 " 30.31 " 31
Mean 3.238" 2.337" 2.950" 9.077" 26.01 " 100.2 "1062 " 852.8 " 501.0 " 118.1 " 39.46 " 20.73 "
Median 2.980" 2.371" 2.760" 10.08 " 26.01 " 90.42 " 974.0 " 877.5 " 432.5 " 107.7 " 37.84 " 11.58 "
Maximum 5.828" 3.301" 5.335" 16.90 " 46.33 " 198.9 "3454 "1321 "1286 " 272.8 " 70.74 " 153.7 "
Minimum 2.004" 1.638" 2.020" 3.194" 11.17 " 31.85 " 92.89 " 361.4 " 152.5 " 62.09 " 18.71 " 6.705"
Total 100.4 " 65.44" 91.46" 272.3 " 806.5 " 3005 "32918 "26436 "15031 " 3661 " 1184 " 642.6 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 230.7 " " ... Relative Uncertainty +/-10%
Ann. Median 32.25 "
Annual Total 84214 "
Maximum Minimum
Daily 3454 " 1.638"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge Year 1996
VarFrom 10.00 Stage - SL in Metres Table Type Total
VarTo 151.00 Stream Discharge Volume in Megalitres
Figures are for period ending 24:00
Day Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec Day
1 28.46 " 7.226" 2.903" 8.645" 10.81 " 103.6 " 774.9 "6426 & 707.0 " 980.7 " 139.3 " 47.60 " 1
2 25.51 " 6.459" 3.262" 10.52 " 11.66 " 75.84 " 677.5 "4326 " 618.8 " 853.5 " 126.3 " 47.58 " 2
3 21.53 " 6.807" 4.108" 9.370" 12.71 " 51.87 "1370 "2632 " 598.5 " 731.5 " 117.5 " 44.65 " 3
4 18.02 " 5.027" 3.669" 8.055" 13.00 " 44.86 "1653 "2035 " 654.7 " 636.9 " 109.7 " 48.29 " 4
5 14.33 " 3.996" 2.909" 7.375" 14.17 " 39.39 " 984.5 "1963 " 563.9 " 555.6 " 100.3 " 46.37 " 5
6 12.05 " 3.938" 2.913" 7.674" 16.44 " 34.61 " 664.6 "1990 " 575.7 " 492.0 " 98.70 " 43.33 " 6
7 9.497" 3.724" 3.770" 6.181" 16.17 " 30.89 " 565.4 "1638 " 678.7 " 450.8 " 96.58 " 40.66 " 7
8 9.887" 6.609" 3.427" 7.855" 20.06 " 28.90 "1090 "1302 " 679.1 " 410.3 " 95.14 " 35.82 " 8
9 9.889" 4.860" 3.744" 9.819" 21.43 " 28.61 "1111 "1098 " 638.4 " 377.8 " 92.99 " 35.57 " 9
10 9.707" 3.961" 4.012" 11.57 " 22.18 " 33.16 " 757.8 "1363 "1171 " 366.2 " 84.32 " 34.09 " 10
11 9.513" 4.092" 7.580" 6.947" 21.57 " 39.43 " 561.3 "2720 "3478 " 372.8 " 76.10 " 34.14 " 11
12 7.775" 3.722" 5.624" 12.05 " 19.82 " 55.55 " 463.4 "2675 "2594 " 338.8 " 69.17 " 41.17 " 12
13 6.627" 3.481" 4.520" 10.94 " 18.67 " 51.31 " 415.5 "4011 "1669 " 306.1 " 62.27 " 49.41 " 13
14 6.688" 3.709" 7.011" 12.43 " 18.42 " 47.10 " 368.2 "3124 "1513 " 283.2 " 60.03 " 49.43 " 14
15 7.676" 4.757" 7.744" 12.12 " 18.56 " 49.01 " 335.2 "2199 "3203 " 265.8 " 70.68 " 51.57 " 15
16 8.218" 4.116" 9.330" 12.18 " 18.65 " 61.20 " 417.7 "1737 "5674 & 259.7 " 99.52 " 47.29 " 16
17 8.432" 3.599" 6.585" 10.53 " 17.56 " 84.71 "1171 "1383 "3620 " 240.7 " 128.9 " 42.06 " 17
18 6.928" 3.876" 8.013" 10.41 " 16.44 " 210.9 "2829 "1125 "5209 & 222.7 " 116.6 " 33.42 " 18
19 6.060" 3.105" 8.903" 10.89 " 15.97 " 296.6 "2836 " 958.1 "4203 & 207.2 " 101.3 " 23.76 " 19
20 5.809" 3.465" 8.276" 13.48 " 15.59 " 391.9 "1723 " 979.5 "2394 " 190.1 " 84.85 " 22.15 " 20
21 6.504" 2.999" 7.092" 13.79 " 16.20 " 660.6 "1478 "1290 "1803 " 198.7 " 74.16 " 22.08 " 21
22 6.073" 4.893" 8.634" 11.93 " 16.12 " 751.2 "2298 "1137 "2372 " 276.8 " 63.78 " 23.22 " 22
23 5.477" 4.497" 9.634" 12.17 " 15.78 " 512.7 "2968 " 954.1 "2682 " 366.3 " 58.92 " 21.86 " 23
24 5.017" 5.292" 8.132" 13.69 " 16.28 " 401.6 "2844 "1007 "1850 " 435.9 " 55.01 " 18.85 " 24
25 6.782" 2.979" 7.466" 13.49 " 16.70 " 324.3 "2735 "1045 "1411 " 380.5 " 50.50 " 17.86 " 25
26 4.759" 3.614" 14.16 " 13.85 " 16.15 " 268.2 "1893 " 901.5 "1192 " 303.5 " 47.59 " 17.93 " 26
27 4.262" 3.321" 9.539" 13.11 " 15.84 " 242.0 "2158 " 857.4 "1688 " 254.2 " 44.59 " 18.19 " 27
28 4.544" 3.464" 9.175" 12.50 " 15.24 " 342.8 "5171 " 923.2 "1722 " 220.2 " 43.66 " 17.24 " 28
29 6.600" 2.774" 15.81 " 10.94 " 14.79 " 441.7 "3516 " 902.8 "1354 " 192.4 " 38.95 " 13.54 " 29
30 7.957" 13.60 " 11.73 " 15.20 " 582.2 "3740 " 768.8 "1135 " 173.8 " 43.99 " 10.33 " 30
31 6.546" 8.248" 43.90 " 5646 & 730.2 " 155.3 " 10.75 " 31
Mean 9.585" 4.288" 7.090" 10.88 " 17.49 " 209.6 "1781 &1813 &1922 & 371.0 " 81.71 " 32.59 "
Median 7.676" 3.938" 7.466" 11.25 " 16.20 " 80.28 "1370 &1302 &1591 & 306.1 " 80.21 " 34.14 "
Maximum 28.46 " 7.226" 15.81 " 13.85 " 43.90 " 751.2 "5646 &6426 &5674 & 980.7 " 139.3 " 51.57 "
Minimum 4.262" 2.774" 2.903" 6.181" 10.81 " 28.61 " 335.2 & 730.2 & 563.9 & 155.3 " 38.95 " 10.33 "
Total 297.1 " 124.4 " 219.8 " 326.3 " 542.1 " 6287 "55217 &56202 &57652 &11500 " 2451 " 1010 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 524.1 & " ... Relative Uncertainty +/-10%
Ann. Median 43.94 & & ... Relative Uncertainty +/-30%
Annual Total 191829 &
Maximum Minimum
Daily 6426 & 2.774&
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 10.45 " 3.678" 21.92 " 11.21 " 23.31 " 122.4 " 235.7 " 323.6 " 476.3 " 184.4 " 57.66 " 32.36 " 1
2 11.64 " 2.742" 17.20 " 11.65 " 25.20 " 197.0 " 215.3 " 298.7 " 548.3 " 177.7 " 54.07 " 27.83 " 2
3 10.05 " 1.842" 17.72 " 11.59 " 24.40 " 251.3 " 215.0 " 282.5 " 546.8 " 166.5 " 51.62 " 26.76 " 3
4 9.474" 1.283" 17.03 " 11.19 " 22.70 " 319.5 " 248.4 " 472.9 " 487.1 " 156.1 " 49.20 " 26.27 " 4
5 8.725" 1.582" 13.08 " 10.91 " 21.85 " 433.0 " 279.7 " 864.3 " 462.0 " 144.5 " 46.95 " 25.30 " 5
6 7.438" 2.375" 12.13 " 9.052" 21.78 " 425.5 " 385.8 " 842.9 " 736.7 " 134.3 " 45.28 " 22.76 " 6
7 7.920" 1.559" 9.026" 9.541" 21.51 " 344.8 " 671.7 " 672.8 " 838.4 " 126.4 " 38.78 " 20.89 " 7
8 7.132" 1.813" 8.123" 15.12 " 21.50 " 308.1 " 670.7 " 581.0 " 794.8 " 121.6 " 33.97 " 21.78 " 8
9 4.196" 1.792" 7.363" 14.66 " 21.10 " 425.1 " 577.5 " 930.5 " 852.7 " 129.6 " 33.43 " 18.65 " 9
10 3.584" 1.493" 7.246" 12.94 " 19.64 " 487.1 " 505.8 "1536 " 842.9 " 233.7 " 34.15 " 19.71 " 10
11 3.600" 1.342" 8.458" 13.52 " 20.44 " 440.4 " 429.4 "1220 " 735.7 " 373.1 " 33.57 " 18.63 " 11
12 3.210" 1.748" 8.041" 12.24 " 22.17 " 405.4 " 379.4 " 868.1 " 629.2 " 301.7 " 31.97 " 15.83 " 12
13 2.623" 2.024" 7.772" 11.16 " 22.33 " 344.5 "1442 " 704.0 " 548.9 " 241.7 " 30.91 " 14.66 " 13
14 2.233" 1.798" 9.197" 11.52 " 21.91 " 289.3 "3819 " 716.2 " 491.0 " 203.3 " 29.59 " 12.57 " 14
15 3.684" 1.426" 10.95 " 10.68 " 21.78 " 252.3 "2136 "1843 " 441.2 " 177.8 " 27.23 " 11.63 " 15
16 3.412" 2.164" 12.85 " 8.858" 20.77 " 221.1 "1276 "2487 " 392.3 " 157.0 " 23.67 " 13.88 " 16
17 2.774" 1.833" 14.95 " 8.891" 22.84 " 197.2 " 921.1 "1799 " 347.1 " 139.7 " 23.59 " 11.57 " 17
18 3.413" 1.582" 16.26 " 9.934" 25.06 " 183.3 " 712.5 "1210 " 324.3 " 125.8 " 22.69 " 9.606" 18
19 3.294" 2.071" 14.74 " 9.116" 27.37 " 760.0 " 579.0 " 916.8 " 329.7 " 114.9 " 23.33 " 8.467" 19
20 2.790" 2.059" 13.51 " 9.592" 28.51 "1356 " 498.9 " 744.9 " 356.8 " 105.0 " 22.81 " 8.231" 20
21 2.997" 4.829" 12.16 " 13.12 " 28.51 "1223 " 426.1 " 631.3 " 334.7 " 95.36 " 31.91 " 7.647" 21
22 2.592" 6.696" 11.00 " 13.37 " 30.59 " 844.1 " 377.8 " 553.0 " 296.6 " 88.07 " 44.30 " 5.911" 22
23 1.880" 8.826" 11.87 " 13.22 " 36.08 " 751.1 " 348.8 " 487.1 " 273.5 " 82.21 " 46.69 " 6.583" 23
24 2.929" 8.630" 12.20 " 14.68 " 42.40 " 618.0 " 340.7 " 433.7 " 263.5 " 78.81 " 48.62 " 5.799" 24
25 2.548" 19.52 " 11.92 " 16.19 " 62.57 " 502.6 " 378.8 " 394.4 " 272.6 " 79.22 " 46.92 " 5.224" 25
26 3.500" 26.59 " 10.78 " 18.00 " 115.3 " 429.9 " 382.6 " 367.3 " 255.0 " 77.91 " 44.36 " 5.913" 26
27 3.659" 28.69 " 10.81 " 20.79 " 119.7 " 369.4 " 413.4 " 376.9 " 240.0 " 80.11 " 41.88 " 5.946" 27
28 3.655" 27.79 " 11.50 " 20.10 " 90.03 " 314.0 " 440.5 " 619.1 " 225.1 " 75.82 " 40.08 " 7.226" 28
29 2.848" 11.55 " 20.59 " 68.74 " 282.2 " 403.4 " 871.8 " 210.1 " 69.57 " 37.36 " 5.531" 29
30 2.692" 9.202" 22.81 " 61.35 " 257.0 " 383.8 " 683.8 " 195.8 " 63.84 " 34.17 " 5.353" 30
31 2.398" 12.37 " 72.88 " 353.6 " 532.2 " 60.93 " 8.056" 31
Mean 4.624" 6.064" 12.03 " 13.21 " 38.20 " 445.2 " 659.7 " 815.0 " 458.3 " 140.9 " 37.69 " 14.08 "
Median 3.413" 2.042" 11.87 " 11.94 " 24.40 " 357.1 " 413.4 " 683.8 " 416.8 " 126.4 " 35.77 " 11.63 "
Maximum 11.64 " 28.69 " 21.92 " 22.81 " 119.7 "1356 "3819 "2487 " 852.7 " 373.1 " 57.66 " 32.36 "
Minimum 1.880" 1.283" 7.246" 8.858" 19.64 " 122.4 " 215.0 " 282.5 " 195.8 " 60.93 " 22.69 " 5.224"
Total 143.3 " 169.8 " 372.9 " 396.2 " 1184 "13355 "20450 "25266 "13749 " 4367 " 1131 " 436.6 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 222.0 " " ... Relative Uncertainty +/-10%
Ann. Median 32.36 "
Annual Total 81021 "
Maximum Minimum
Daily 3819 " 1.283"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 4.981" 3.833" 3.986" 13.51 " 15.14 " 44.01 " 137.1 " 463.4 "1521 " 777.6 " 87.59 " 20.54 " 1
2 5.112" 3.528" 4.367" 10.02 " 13.71 " 40.25 " 124.0 " 716.4 "2364 " 764.8 " 82.57 " 20.80 " 2
3 9.177" 3.573" 5.471" 8.597" 13.50 " 37.72 " 118.1 " 568.8 "2767 " 667.4 " 77.00 " 19.88 " 3
4 6.014" 4.865" 5.475" 9.870" 14.00 " 37.08 " 135.5 " 472.1 "1825 " 550.3 " 71.93 " 17.87 " 4
5 4.418" 4.895" 4.746" 8.628" 17.55 " 43.38 " 252.6 " 411.3 "1251 " 477.2 " 68.28 " 14.57 " 5
6 5.069" 3.990" 3.970" 10.93 " 17.12 " 52.99 " 360.7 " 591.4 " 951.9 " 421.8 " 62.70 " 11.94 " 6
7 4.254" 4.416" 3.462" 11.10 " 16.28 " 74.71 " 539.9 " 611.8 " 737.1 " 380.2 " 60.31 " 12.19 " 7
8 5.494" 3.556" 5.304" 10.69 " 16.58 " 96.35 " 471.1 " 543.7 " 601.1 " 333.0 " 55.95 " 13.31 " 8
9 4.867" 3.442" 7.516" 10.19 " 19.22 " 125.1 " 351.2 " 486.6 " 512.9 " 294.1 " 51.18 " 20.40 " 9
10 5.375" 3.935" 17.06 " 9.674" 21.68 " 201.6 " 285.4 " 445.0 " 448.4 " 273.9 " 43.86 " 24.17 " 10
11 4.243" 4.887" 21.79 " 9.036" 23.31 " 373.1 " 245.8 " 662.6 " 406.8 " 258.7 " 40.41 " 27.47 " 11
12 4.643" 3.719" 23.42 " 8.773" 23.21 " 369.6 " 219.1 " 685.3 " 371.8 " 245.8 " 37.80 " 19.20 " 12
13 5.124" 3.840" 33.94 " 11.24 " 34.23 " 259.9 " 195.6 " 530.3 " 364.3 " 243.9 " 38.18 " 7.638" 13
14 6.324" 3.366" 28.48 " 11.40 " 30.10 " 224.5 " 174.9 " 431.0 " 351.4 " 247.4 " 37.71 " 7.292" 14
15 5.382" 3.719" 23.60 " 11.59 " 27.91 " 195.3 " 157.7 " 369.5 " 316.1 " 236.6 " 34.84 " 10.63 " 15
16 5.613" 3.450" 18.78 " 14.14 " 25.93 " 165.5 " 146.7 " 333.6 " 291.4 " 222.1 " 32.96 " 8.793" 16
17 5.666" 3.305" 15.41 " 15.65 " 23.16 " 156.3 " 137.9 " 307.8 " 285.0 " 249.8 " 34.12 " 7.030" 17
18 5.695" 4.005" 14.51 " 15.76 " 24.78 " 199.1 " 140.2 " 371.7 " 292.5 " 284.9 " 33.85 " 7.480" 18
19 6.191" 4.586" 13.35 " 16.60 " 24.40 " 267.5 " 162.4 " 635.2 " 270.0 " 278.5 " 31.08 " 7.685" 19
20 7.922" 4.012" 15.28 " 17.52 " 23.93 " 234.5 " 173.2 " 593.4 " 250.9 " 241.0 " 28.92 " 6.546" 20
21 5.988" 3.743" 17.61 " 16.38 " 24.74 " 188.8 " 159.2 " 480.6 " 332.8 " 208.4 " 27.54 " 5.620" 21
22 5.619" 3.196" 20.06 " 17.28 " 30.74 " 158.8 " 204.1 " 405.8 " 669.4 " 190.1 " 26.81 " 6.486" 22
23 6.749" 3.853" 19.24 " 17.99 " 28.21 " 138.7 " 288.6 " 355.2 " 622.1 " 172.3 " 26.81 " 6.217" 23
24 5.310" 3.835" 17.23 " 18.75 " 28.55 " 123.3 " 251.1 " 546.9 " 504.8 " 155.5 " 29.76 " 5.806" 24
25 4.325" 4.238" 18.98 " 17.33 " 33.08 " 114.8 " 222.1 " 613.4 " 560.7 " 140.9 " 28.16 " 6.449" 25
26 3.935" 3.805" 17.90 " 17.60 " 33.35 " 112.0 " 269.9 " 479.0 " 601.9 " 129.5 " 25.23 " 7.008" 26
27 3.756" 3.988" 18.32 " 17.78 " 35.69 " 126.0 " 314.1 " 537.8 " 927.7 " 121.0 " 24.04 " 6.208" 27
28 3.367" 4.076" 16.57 " 17.05 " 35.26 " 154.6 " 268.1 " 890.5 "1070 " 112.8 " 22.32 " 6.394" 28
29 4.810" 16.49 " 17.23 " 40.70 " 171.3 " 230.8 " 918.2 " 912.7 " 103.7 " 21.71 " 5.696" 29
30 3.749" 13.86 " 15.35 " 48.44 " 157.5 " 206.9 "1883 " 752.3 " 97.87 " 21.13 " 6.633" 30
31 4.254" 16.46 " 45.44 " 203.2 "2006 " 91.56 " 7.901" 31
Mean 5.272" 3.916" 14.92 " 13.59 " 26.13 " 154.8 " 230.6 " 624.1 " 771.1 " 289.4 " 42.16 " 11.48 "
Median 5.124" 3.838" 16.49 " 13.83 " 24.74 " 155.5 " 206.9 " 537.8 " 580.9 " 245.8 " 34.48 " 7.685"
Maximum 9.177" 4.895" 33.94 " 18.75 " 48.44 " 373.1 " 539.9 "2006 "2767 " 777.6 " 87.59 " 27.47 "
Minimum 3.367" 3.196" 3.462" 8.597" 13.50 " 37.08 " 118.1 " 307.8 " 250.9 " 91.56 " 21.13 " 5.620"
Total 163.4 " 109.7 " 462.6 " 407.7 " 810.0 " 4644 " 7147 "19347 "23134 " 8972 " 1265 " 355.9 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 183.1 " " ... Relative Uncertainty +/-10%
Ann. Median 30.10 "
Annual Total 66819 "
Maximum Minimum
Daily 2767 " 3.196"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 6.497" 4.748" 12.61 " 7.631" 11.10 " 171.2 " 613.2 " 562.4 "1055 " 525.6 " 198.2 " 27.70 " 1
2 6.006" 7.684" 12.92 " 6.785" 11.68 " 184.9 " 509.3 " 492.8 " 966.0 " 505.6 " 182.0 " 29.11 " 2
3 7.659" 6.354" 15.79 " 6.026" 12.85 " 206.3 " 475.1 " 439.5 "1531 " 440.9 " 168.7 " 25.21 " 3
4 6.909" 8.639" 12.42 " 5.575" 13.12 " 228.0 "2499 " 395.7 "1958 " 384.3 " 160.5 " 24.57 " 4
5 7.834" 11.37 " 9.325" 6.365" 15.16 " 196.4 "5075 & 361.2 "1609 " 340.9 " 146.3 " 23.15 " 5
6 8.091" 8.509" 7.124" 6.823" 26.97 " 159.2 "2965 " 408.0 "1204 " 322.5 " 130.1 " 24.95 " 6
7 8.634" 5.018" 5.926" 7.016" 30.75 " 141.0 "1885 " 525.1 " 991.3 " 378.6 " 120.0 " 22.17 " 7
8 5.557" 4.719" 12.50 " 7.139" 27.88 " 179.9 "1318 " 478.5 " 874.4 "1059 " 111.6 " 19.75 " 8
9 6.734" 7.825" 14.31 " 7.516" 22.74 " 237.7 " 978.5 " 428.0 " 752.8 "1633 " 103.8 " 17.42 " 9
10 5.436" 10.51 " 11.89 " 9.201" 23.69 " 227.4 " 791.1 " 934.6 " 657.2 "1363 " 96.72 " 16.70 " 10
11 5.429" 8.390" 7.845" 9.079" 22.12 " 436.1 " 664.0 "1849 "1036 " 961.0 " 90.34 " 16.49 " 11
12 5.792" 7.670" 8.543" 8.394" 23.25 " 771.2 " 561.8 "1772 "1058 " 738.2 " 84.67 " 15.20 " 12
13 5.244" 9.090" 6.203" 9.753" 22.85 " 597.4 " 608.3 "1218 " 962.1 " 705.4 " 78.55 " 18.87 " 13
14 4.343" 8.629" 6.315" 9.028" 20.70 " 553.5 " 863.7 " 909.5 "1473 "2412 " 74.32 " 17.18 " 14
15 4.525" 7.239" 7.204" 9.837" 21.75 " 497.1 " 918.1 " 784.5 "1928 "2547 " 70.13 " 15.84 " 15
16 4.313" 8.401" 8.637" 7.792" 21.85 " 459.1 "1140 " 854.4 "1594 "2031 " 66.19 " 13.91 " 16
17 4.032" 6.637" 8.233" 7.796" 20.62 " 448.6 "1484 "1054 "1173 "1684 " 63.62 " 12.79 " 17
18 3.838" 5.532" 7.496" 8.918" 20.40 "1310 "1205 "1616 " 927.7 "1207 " 61.45 " 12.92 " 18
19 7.360" 4.551" 10.98 " 10.15 " 23.54 "1563 " 976.6 "1744 " 779.0 " 909.6 " 59.71 " 16.46 " 19
20 6.737" 10.18 " 13.41 " 11.23 " 29.97 "1060 " 828.4 "1390 " 686.0 " 737.6 " 57.08 " 21.26 " 20
21 5.769" 12.13 " 14.73 " 9.940" 28.67 " 731.3 " 697.2 "1033 " 654.4 " 616.5 " 57.14 " 19.79 " 21
22 4.459" 12.19 " 16.31 " 10.12 " 26.57 " 579.7 " 585.1 " 835.1 " 599.9 " 500.9 " 52.92 " 18.66 " 22
23 5.649" 12.74 " 14.17 " 8.811" 23.78 "1166 " 510.5 " 686.3 " 535.3 " 436.1 " 49.08 " 19.29 " 23
24 4.140" 13.38 " 14.99 " 9.016" 22.88 "1116 " 463.9 " 889.2 " 477.4 " 396.3 " 45.27 " 16.81 " 24
25 4.693" 13.63 " 13.16 " 8.161" 24.91 " 841.8 " 435.0 "1690 " 431.4 " 364.3 " 43.24 " 13.20 " 25
26 6.543" 15.62 " 12.03 " 7.283" 29.15 "1565 " 579.0 "1883 " 402.9 " 329.1 " 41.43 " 13.20 " 26
27 4.512" 15.28 " 11.24 " 8.071" 67.41 "1360 " 633.5 "1489 " 433.8 " 305.3 " 37.81 " 14.14 " 27
28 4.860" 14.28 " 9.179" 9.213" 368.2 "1063 " 765.3 "1499 " 557.1 " 282.5 " 34.60 " 12.60 " 28
29 4.658" 8.984" 7.883" 351.1 "1034 "1004 "2103 " 550.2 " 262.6 " 32.14 " 12.17 " 29
30 3.900" 10.45 " 9.514" 234.4 " 804.3 " 847.3 "1964 " 514.5 " 242.9 " 28.47 " 12.05 " 30
31 3.925" 8.795" 183.9 " 672.3 "1396 " 218.5 " 11.32 " 31
Mean 5.615" 9.319" 10.77 " 8.335" 57.55 " 663.0 "1082 &1087 " 945.7 " 801.3 " 84.87 " 17.90 "
Median 5.436" 8.569" 10.98 " 8.278" 23.54 " 566.6 " 791.1 & 934.6 " 901.1 " 505.6 " 68.16 " 16.81 "
Maximum 8.634" 15.62 " 16.31 " 11.23 " 368.2 "1565 "5075 &2103 "1958 "2547 " 198.2 " 29.11 "
Minimum 3.838" 4.551" 5.926" 5.575" 11.10 " 141.0 " 435.0 & 361.2 " 402.9 " 218.5 " 28.47 " 11.32 "
Total 174.1 " 260.9 " 333.7 " 250.1 " 1784 "19891 "33554 &33687 "28372 "24842 " 2546 " 554.9 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 400.7 & " ... Relative Uncertainty +/-10%
Ann. Median 43.24 & & ... Relative Uncertainty +/-30%
Annual Total 146249 &
Maximum Minimum
Daily 5075 & 3.838&
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 8.953" 11.34 " 8.054" 15.63 " 31.84 " 30.28 " 237.1 " 574.4 "2007 " 210.8 " 49.96 " 21.48 " 1
2 10.56 " 9.764" 6.790" 15.38 " 41.69 " 30.19 "1081 " 948.0 "1665 " 194.6 " 48.84 " 19.60 " 2
3 9.086" 8.482" 8.054" 14.15 " 33.78 " 29.34 "1015 "1635 "1398 " 180.6 " 46.59 " 20.22 " 3
4 7.697" 9.522" 8.798" 12.81 " 30.48 " 28.16 "2085 "1164 "1106 " 165.4 " 42.65 " 19.40 " 4
5 7.599" 9.876" 8.129" 13.20 " 28.22 " 26.76 "3006 "1179 " 939.0 " 157.1 " 41.40 " 19.55 " 5
6 5.840" 7.407" 8.716" 11.61 " 26.46 " 26.28 "1675 "3192 "1982 " 153.4 " 40.84 " 18.11 " 6
7 6.517" 7.408" 9.096" 11.83 " 26.04 " 26.42 "1235 "3025 "2282 # 149.4 " 41.63 " 17.25 " 7
8 6.675" 10.75 " 7.384" 10.64 " 25.16 " 26.15 "1121 "2359 "1709 " 145.1 " 40.94 " 14.76 " 8
9 10.82 " 9.384" 8.000" 10.16 " 24.12 " 25.72 " 821.6 "1610 "1237 " 140.3 " 40.87 " 13.69 " 9
10 9.697" 6.126" 27.41 " 10.14 " 24.87 " 26.55 " 959.1 "1130 " 973.7 " 136.3 " 43.12 " 13.93 " 10
11 8.384" 5.609" 49.00 " 11.43 " 26.34 " 26.36 "2349 " 892.3 " 810.1 " 130.1 " 45.82 " 12.76 " 11
12 8.175" 7.762" 37.71 " 10.13 " 27.24 " 26.52 "1918 " 753.0 " 702.3 " 121.6 " 45.45 " 13.17 " 12
13 8.621" 6.161" 34.10 " 10.55 " 27.10 " 32.90 "1491 " 669.6 " 692.1 " 113.4 " 40.75 " 9.347" 13
14 10.54 " 6.864" 25.16 " 13.11 " 26.60 " 66.93 "1645 " 595.9 " 704.4 " 108.3 " 36.74 " 8.021" 14
15 16.85 " 8.024" 20.37 " 14.44 " 28.40 " 76.24 "1735 " 560.3 " 667.6 " 102.9 " 32.91 " 9.434" 15
16 20.44 " 7.712" 19.12 " 15.24 " 30.90 " 75.60 "1628 " 852.1 " 687.4 " 96.01 " 30.37 " 9.315" 16
17 25.10 " 7.061" 17.78 " 15.37 " 30.64 " 66.73 "2067 "1114 " 595.5 " 89.47 " 33.25 " 12.14 " 17
18 29.05 " 5.796" 15.82 " 15.54 " 29.86 " 57.98 "3064 " 978.3 " 514.1 " 83.12 " 33.93 " 11.52 " 18
19 27.41 " 4.930" 14.41 " 14.18 " 28.86 " 59.59 "2677 " 774.6 " 454.4 " 76.73 " 31.84 " 10.29 " 19
20 23.75 " 5.195" 16.34 " 14.27 " 29.01 " 69.99 "1842 " 661.6 " 412.3 " 73.79 " 29.73 " 11.09 " 20
21 18.07 " 7.177" 15.44 " 14.36 " 29.55 " 104.1 "1518 " 589.5 " 377.0 " 70.70 " 25.75 " 12.04 " 21
22 18.31 " 5.678" 16.07 " 14.22 " 29.69 " 111.9 "1441 " 516.8 " 343.8 " 70.41 " 24.66 " 14.90 " 22
23 20.31 " 6.423" 19.05 " 13.62 " 28.41 " 96.46 "1313 " 462.6 " 315.2 " 72.87 " 23.24 " 12.34 " 23
24 18.91 " 5.910" 19.51 " 12.31 " 26.64 " 90.66 "1065 " 543.9 " 291.1 " 75.70 " 23.63 " 13.15 " 24
25 17.00 " 6.216" 18.24 " 14.84 " 26.20 " 104.7 " 846.0 " 600.8 " 269.3 " 69.66 " 23.48 " 12.77 " 25
26 17.16 " 6.743" 18.45 " 16.55 " 24.90 " 132.7 " 692.3 " 738.2 " 253.5 " 60.85 " 24.17 " 15.59 " 26
27 16.37 " 5.366" 18.58 " 25.57 " 24.60 " 140.1 " 584.1 " 889.9 " 243.7 " 56.86 " 25.07 " 12.84 " 27
28 13.57 " 6.979" 16.70 " 35.56 " 24.88 " 121.7 " 549.3 " 816.5 " 243.8 " 54.90 " 25.12 " 10.84 " 28
29 12.75 " 8.203" 15.03 " 33.66 " 26.80 " 103.8 " 644.2 "1013 " 238.5 " 52.81 " 24.86 " 10.03 " 29
30 9.466" 15.41 " 31.77 " 26.78 " 92.03 " 600.3 "1298 " 224.2 " 52.65 " 23.37 " 10.29 " 30
31 10.11 " 16.55 " 29.49 " 529.7 "1734 " 51.15 " 10.44 " 31
Mean 13.99 " 7.375" 17.40 " 15.74 " 28.24 " 64.43 "1401 "1093 " 811.3 # 107.0 " 34.70 " 13.56 "
Median 10.82 " 7.061" 16.34 " 14.20 " 27.24 " 63.16 "1313 " 889.9 " 677.5 # 96.01 " 33.59 " 12.77 "
Maximum 29.05 " 11.34 " 49.00 " 35.56 " 41.69 " 140.1 "3064 "3192 "2282 # 210.8 " 49.96 " 21.48 "
Minimum 5.840" 4.930" 6.790" 10.13 " 24.12 " 25.72 " 237.1 " 462.6 " 224.2 # 51.15 " 23.24 " 8.021"
Total 433.8 " 213.9 " 539.3 " 472.3 " 875.5 " 1933 "43435 "33872 "24339 # 3317 " 1041 " 420.3 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 303.0 # " ... Relative Uncertainty +/-10%
Ann. Median 28.63 # # ... Relative Uncertainty +/-15%
Annual Total 110892 #
Maximum Minimum
Daily 3192 # 4.930#
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 9.592" 5.426" 7.238" 8.315" 12.47 " 35.21 " 28.16 " 37.38 " 98.47 " 211.9 " 29.06 " 18.04 " 1
2 10.71 " 6.990" 8.280" 7.952" 12.59 " 34.58 " 28.53 " 37.85 " 89.34 " 189.1 " 27.73 " 27.36 " 2
3 12.76 " 6.983" 9.419" 8.439" 12.85 " 36.07 " 29.99 " 42.69 " 85.28 " 158.0 " 28.01 " 40.42 " 3
4 10.75 " 6.454" 11.05 " 7.467" 10.92 " 34.15 " 32.40 " 50.27 " 81.00 " 133.2 " 26.78 " 115.8 " 4
5 9.913" 8.048" 11.02 " 8.411" 11.99 " 31.74 " 31.89 " 48.30 " 79.95 " 115.1 " 24.68 " 111.7 " 5
6 7.995" 9.608" 9.193" 8.382" 20.76 " 30.55 " 33.56 " 51.78 " 85.78 " 99.45 " 22.95 " 78.95 " 6
7 7.925" 7.286" 6.824" 9.205" 34.12 " 30.22 " 34.22 " 56.15 " 99.31 " 87.03 " 22.33 " 62.17 " 7
8 12.04 " 6.975" 7.450" 10.01 " 36.77 " 30.79 " 35.87 " 65.34 " 106.2 " 78.30 " 20.56 " 51.31 " 8
9 11.23 " 6.326" 7.393" 8.560" 35.89 " 32.32 " 38.39 " 185.5 " 111.9 " 71.28 " 21.74 " 44.37 " 9
10 8.080" 5.619" 7.229" 11.16 " 32.41 " 32.03 " 39.23 " 265.5 " 142.7 " 66.02 " 20.75 " 38.71 " 10
11 7.161" 6.466" 6.104" 11.56 " 29.01 " 33.72 " 45.86 " 231.6 " 152.6 " 66.99 " 18.52 " 33.84 " 11
12 7.780" 6.542" 6.631" 9.317" 29.46 " 32.72 " 49.04 " 194.2 " 135.2 " 65.27 " 15.05 " 28.61 " 12
13 8.390" 6.561" 6.756" 7.480" 29.58 " 31.62 " 46.14 " 168.3 " 124.1 " 64.03 " 11.99 " 25.54 " 13
14 7.445" 6.645" 6.141" 8.264" 27.65 " 30.96 " 41.58 " 157.8 " 112.8 " 60.88 " 12.95 " 21.99 " 14
15 8.195" 5.387" 8.363" 11.66 " 26.91 " 29.80 " 39.95 " 168.8 " 104.0 " 57.31 " 12.39 " 20.25 " 15
16 8.578" 6.183" 9.621" 13.82 " 26.06 " 29.62 " 38.44 " 185.7 " 95.82 " 53.96 " 13.54 " 17.82 " 16
17 7.504" 6.904" 8.180" 13.75 " 25.10 " 30.04 " 36.74 " 176.8 " 89.98 " 51.75 " 12.99 " 17.37 " 17
18 6.425" 6.364" 11.70 " 10.94 " 24.01 " 29.81 " 35.13 " 152.2 " 85.77 " 48.97 " 12.22 " 16.28 " 18
19 7.250" 6.931" 14.89 " 11.41 " 22.98 " 29.40 " 33.62 " 134.4 " 77.97 " 46.58 " 14.18 " 15.55 " 19
20 8.418" 6.905" 13.07 " 13.14 " 24.64 " 28.83 " 33.62 " 120.5 " 72.31 " 45.41 " 12.89 " 15.54 " 20
21 7.796" 5.937" 10.45 " 12.31 " 27.42 " 28.33 " 36.83 " 107.3 " 68.66 " 44.66 " 13.11 " 15.33 " 21
22 6.500" 5.863" 11.62 " 14.11 " 26.92 " 28.21 " 35.49 " 96.64 " 87.66 " 43.45 " 12.34 " 13.44 " 22
23 6.815" 6.114" 12.42 " 15.93 " 24.35 " 28.36 " 33.28 " 89.81 " 132.4 " 42.29 " 12.00 " 9.765" 23
24 6.925" 5.989" 11.18 " 13.86 " 24.13 " 28.58 " 32.68 " 97.37 " 151.2 " 41.61 " 15.50 " 8.261" 24
25 7.029" 5.651" 12.07 " 12.12 " 25.96 " 28.26 " 32.10 " 118.4 " 126.9 " 38.48 " 17.44 " 10.37 " 25
26 8.669" 5.599" 12.73 " 12.86 " 25.13 " 27.84 " 31.68 " 117.4 " 107.1 " 38.85 " 16.38 " 10.29 " 26
27 7.632" 6.824" 12.00 " 12.76 " 24.86 " 27.71 " 31.34 " 101.9 " 92.01 " 36.25 " 15.10 " 10.23 " 27
28 6.777" 6.851" 10.57 " 13.09 " 24.64 " 27.41 " 31.80 " 90.16 " 86.23 " 34.49 " 12.34 " 8.357" 28
29 6.230" 7.374" 11.74 " 29.75 " 27.72 " 33.47 " 85.65 " 102.1 " 33.04 " 11.60 " 9.025" 29
30 5.593" 8.443" 11.65 " 41.30 " 27.84 " 34.77 " 89.49 " 164.1 " 30.95 " 14.11 " 7.490" 30
31 5.891" 8.415" 36.87 " 36.10 " 103.6 " 29.94 " 6.959" 31
Mean 8.194" 6.551" 9.478" 10.99 " 25.73 " 30.48 " 35.55 " 117.0 " 105.0 " 70.47 " 17.38 " 29.39 "
Median 7.796" 6.504" 9.193" 11.49 " 25.96 " 29.93 " 34.22 " 103.6 " 98.89 " 53.96 " 15.08 " 17.82 "
Maximum 12.76 " 9.608" 14.89 " 15.93 " 41.30 " 36.07 " 49.04 " 265.5 " 164.1 " 211.9 " 29.06 " 115.8 "
Minimum 5.593" 5.387" 6.104" 7.467" 10.92 " 27.41 " 28.16 " 37.38 " 68.66 " 29.94 " 11.60 " 6.959"
Total 254.0 " 183.4 " 293.8 " 329.7 " 797.5 " 914.4 "1102 "3629 "3149 "2185 " 521.3 " 911.1 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 39.09 " " ... Relative Uncertainty +/-10%
Ann. Median 26.06 "
Annual Total 14269 "
Maximum Minimum
Daily 265.5 " 5.387"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 7.159" 3.399" 3.736" 9.732" 13.76 " 23.89 " 309.2 " 351.0 " 836.3 " 179.9 " 99.39 " 17.60 " 1
2 6.617" 4.210" 3.916" 9.270" 14.67 " 27.09 " 523.8 " 365.1 "1038 " 162.0 " 108.0 " 18.06 " 2
3 7.236" 3.030" 3.853" 7.181" 17.35 " 30.46 " 426.4 " 345.0 "1051 " 148.4 " 124.6 " 15.71 " 3
4 6.103" 2.831" 4.157" 7.660" 50.10 " 45.12 " 352.2 " 508.7 " 894.2 " 137.8 " 112.0 " 16.45 " 4
5 7.072" 2.621" 4.276" 7.662" 34.65 " 126.2 " 388.0 "1183 " 723.9 " 141.8 " 98.75 " 18.46 " 5
6 5.810" 3.180" 7.211" 6.853" 29.97 " 162.9 " 375.6 "1256 " 594.7 " 196.9 " 87.04 " 17.27 " 6
7 6.545" 2.687" 5.410" 8.456" 33.32 " 145.7 " 386.9 " 924.3 " 489.9 " 268.9 " 76.65 " 13.43 " 7
8 7.987" 2.919" 4.572" 12.85 " 31.84 " 118.4 " 618.5 " 704.5 " 432.9 " 242.8 " 68.23 " 13.18 " 8
9 7.698" 3.447" 4.369" 12.35 " 46.00 " 96.38 " 662.0 " 887.0 " 387.1 " 201.1 " 60.79 " 13.71 " 9
10 7.878" 3.292" 3.940" 11.40 " 48.55 " 83.03 " 664.9 "1261 " 355.7 " 170.3 " 56.86 " 12.34 " 10
11 6.504" 3.396" 4.665" 11.34 " 52.82 " 73.38 "1256 "1227 " 327.3 " 152.4 " 53.65 " 11.28 " 11
12 6.997" 3.473" 4.039" 10.78 " 51.91 " 67.95 "1616 " 907.6 " 293.5 " 142.4 " 48.88 " 8.844" 12
13 6.647" 3.015" 5.382" 11.73 " 45.93 " 75.76 "1613 " 709.3 " 272.4 " 130.5 " 45.49 " 7.898" 13
14 6.504" 3.957" 5.411" 10.03 " 50.76 " 144.1 "1245 " 578.0 " 266.4 " 121.6 " 42.93 " 6.689" 14
15 6.832" 3.037" 4.480" 10.41 " 48.84 " 275.0 "1116 " 726.4 " 545.2 " 114.3 " 40.99 " 6.860" 15
16 5.946" 3.667" 6.271" 11.19 " 46.87 " 237.3 " 892.2 " 893.9 " 780.5 " 108.9 " 37.62 " 7.261" 16
17 7.060" 3.810" 6.954" 12.07 " 50.13 " 182.3 " 674.3 " 718.1 " 626.3 " 112.7 " 34.48 " 6.551" 17
18 5.094" 4.169" 6.960" 13.09 " 42.47 " 170.3 " 723.4 " 581.6 " 489.0 " 182.7 " 33.25 " 6.611" 18
19 6.561" 4.789" 7.165" 14.03 " 38.52 " 270.3 "1418 " 491.4 " 418.7 " 260.6 " 30.53 " 6.244" 19
20 5.978" 6.163" 8.345" 13.26 " 35.87 " 275.4 "1153 " 427.1 " 370.3 " 242.0 " 28.61 " 5.529" 20
21 6.667" 5.687" 6.626" 15.37 " 32.80 " 211.7 " 811.2 " 382.2 " 337.9 " 197.0 " 28.15 " 6.545" 21
22 4.600" 4.939" 9.449" 17.13 " 31.33 " 175.2 " 654.6 " 339.5 " 307.4 " 163.1 " 26.80 " 5.325" 22
23 4.677" 5.437" 9.663" 16.44 " 29.79 " 153.9 " 546.1 " 313.2 " 301.7 " 141.7 " 26.13 " 5.978" 23
24 4.680" 7.457" 8.981" 15.72 " 28.86 " 139.3 " 474.6 " 286.6 " 298.2 " 128.6 " 24.41 " 5.279" 24
25 5.534" 4.373" 9.065" 15.26 " 27.90 " 143.9 " 525.1 " 287.0 " 279.1 " 118.1 " 24.84 " 5.900" 25
26 3.780" 5.250" 7.735" 15.49 " 27.40 " 139.4 " 507.2 " 307.9 " 258.8 " 109.7 " 22.16 " 7.558" 26
27 3.694" 4.798" 6.811" 15.13 " 27.14 " 132.1 " 471.1 " 381.5 " 251.9 " 102.1 " 23.22 " 5.711" 27
28 4.680" 5.739" 6.458" 15.03 " 26.52 " 131.7 " 422.5 " 399.2 " 241.0 " 96.05 " 22.43 " 6.798" 28
29 3.957" 6.616" 14.50 " 25.51 " 153.9 " 366.8 " 361.1 " 216.6 " 93.08 " 20.64 " 7.398" 29
30 3.440" 8.079" 14.01 " 24.70 " 227.6 " 348.2 " 434.1 " 197.0 " 97.44 " 19.51 " 8.424" 30
31 5.415" 10.25 " 23.77 " 381.5 " 651.0 " 95.08 " 9.446" 31
Mean 5.979" 4.099" 6.285" 12.18 " 35.16 " 141.3 " 707.2 " 619.0 " 462.8 " 153.6 " 50.90 " 9.818"
Median 6.504" 3.738" 6.458" 12.21 " 32.80 " 141.6 " 546.1 " 508.7 " 363.0 " 141.8 " 39.31 " 7.558"
Maximum 7.987" 7.457" 10.25 " 17.13 " 52.82 " 275.4 "1616 "1261 "1051 " 268.9 " 124.6 " 18.46 "
Minimum 3.440" 2.621" 3.736" 6.853" 13.76 " 23.89 " 309.2 " 286.6 " 197.0 " 93.08 " 19.51 " 5.279"
Total 185.4 " 114.8 " 194.8 " 365.4 " 1090 " 4240 "21923 "19190 "13883 " 4760 " 1527 " 304.4 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 185.7 " " ... Relative Uncertainty +/-10%
Ann. Median 33.25 "
Annual Total 67777 "
Maximum Minimum
Daily 1616 " 2.621"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 7.564" 5.010" 5.346" 8.002" 16.64 " 30.53 " 402.1 " 558.5 " 252.8 " 443.8 " 77.98 " 15.72 " 1
2 5.693" 5.013" 5.575" 6.685" 16.00 " 28.91 " 322.2 " 497.5 " 233.8 " 396.0 " 70.85 " 15.60 " 2
3 6.129" 5.463" 3.813" 7.638" 16.17 " 30.11 " 303.0 "1388 " 213.1 " 358.1 " 65.55 " 14.69 " 3
4 5.927" 5.387" 3.744" 6.861" 15.42 " 29.52 " 480.6 "2803 " 231.3 " 324.4 " 60.64 " 13.19 " 4
5 4.251" 4.256" 4.320" 6.802" 14.67 " 29.44 " 806.1 "1814 " 279.0 " 289.7 " 55.97 " 12.96 " 5
6 4.736" 3.569" 3.890" 7.297" 13.55 " 28.90 "1265 "1177 " 249.8 " 260.2 " 52.32 " 12.72 " 6
7 4.998" 3.384" 3.532" 9.318" 12.03 " 28.14 " 960.1 " 877.6 " 230.5 " 235.8 " 49.72 " 10.61 " 7
8 4.738" 3.371" 3.659" 8.113" 11.15 " 26.99 " 651.2 " 681.5 " 238.7 " 214.7 " 46.63 " 10.53 " 8
9 4.579" 2.903" 3.652" 7.578" 10.13 " 26.20 " 615.5 " 554.9 " 268.4 " 194.4 " 44.10 " 11.46 " 9
10 3.451" 3.902" 3.302" 7.457" 9.666" 26.58 " 987.6 " 492.8 " 418.5 " 177.8 " 40.62 " 10.99 " 10
11 4.947" 3.178" 3.427" 10.20 " 10.80 " 25.99 "2036 " 744.1 " 747.4 " 162.6 " 38.04 " 11.09 " 11
12 3.534" 3.896" 3.985" 14.70 " 12.41 " 25.04 "1535 " 916.7 " 771.9 " 153.0 " 34.47 " 8.176" 12
13 4.119" 3.095" 4.429" 18.41 " 12.73 " 24.77 " 946.8 " 726.1 " 729.9 " 158.3 " 34.46 " 8.971" 13
14 4.636" 3.113" 5.210" 15.52 " 12.66 " 24.68 " 933.9 " 569.4 " 624.5 " 184.9 " 32.54 " 8.359" 14
15 4.824" 2.944" 4.712" 14.96 " 14.63 " 24.46 " 929.3 " 477.6 " 504.4 " 191.8 " 30.16 " 10.98 " 15
16 3.983" 6.891" 8.950" 17.12 " 18.66 " 24.28 " 703.0 " 463.7 " 417.7 " 182.0 " 28.60 " 9.724" 16
17 3.868" 12.62 " 11.07 " 15.38 " 29.21 " 24.02 " 550.7 " 453.9 " 360.9 " 163.4 " 28.13 " 6.690" 17
18 3.004" 18.51 " 9.530" 16.14 " 24.17 " 23.56 " 466.9 " 410.1 " 319.3 " 152.4 " 36.38 " 8.895" 18
19 3.595" 25.34 " 6.760" 16.10 " 24.16 " 23.29 " 402.3 " 372.1 " 291.4 " 142.5 " 37.40 " 13.45 " 19
20 4.427" 21.32 " 7.622" 15.08 " 27.85 " 23.20 " 355.6 " 348.3 " 357.8 " 134.1 " 36.56 " 9.799" 20
21 5.147" 15.06 " 7.213" 14.42 " 34.84 " 23.14 " 346.3 " 357.0 " 737.7 " 126.6 " 34.60 " 9.886" 21
22 4.594" 11.92 " 8.123" 13.19 " 34.65 " 23.15 " 350.8 " 637.4 "1449 " 117.5 " 34.12 " 10.53 " 22
23 3.920" 12.21 " 8.216" 13.47 " 29.53 " 24.12 " 331.0 " 712.2 "1961 " 108.9 " 33.23 " 9.206" 23
24 3.748" 9.385" 9.248" 14.25 " 29.36 " 33.96 " 290.6 " 584.6 "1836 " 100.6 " 30.45 " 6.662" 24
25 4.999" 7.892" 9.796" 24.89 " 32.25 " 316.4 " 268.2 " 492.7 "1501 " 92.66 " 26.39 " 7.890" 25
26 3.771" 6.310" 10.45 " 16.57 " 31.20 " 280.9 " 281.4 " 416.1 "1192 " 86.94 " 25.95 " 9.665" 26
27 5.666" 5.678" 8.237" 18.44 " 28.80 " 430.6 " 300.2 " 362.5 " 904.7 " 82.21 " 26.06 " 7.802" 27
28 6.162" 5.065" 6.893" 17.11 " 27.13 " 741.6 " 292.2 " 335.1 " 693.6 " 77.85 " 22.72 " 6.896" 28
29 5.978" 6.018" 16.42 " 25.63 " 661.7 " 261.6 " 311.4 " 562.6 " 87.33 " 18.45 " 7.890" 29
30 5.365" 6.122" 17.47 " 26.88 " 511.0 " 315.2 " 297.3 " 494.1 " 87.86 " 16.30 " 8.808" 30
31 4.158" 6.980" 31.56 " 551.1 " 276.0 " 86.04 " 7.932" 31
Mean 4.726" 7.739" 6.252" 13.19 " 21.11 " 119.2 " 620.7 " 680.9 " 635.7 " 179.8 " 38.98 " 10.25 "
Median 4.636" 5.226" 6.018" 14.56 " 18.66 " 26.78 " 466.9 " 497.5 " 456.3 " 158.3 " 34.53 " 9.799"
Maximum 7.564" 25.34 " 11.07 " 24.89 " 34.84 " 741.6 "2036 "2803 "1961 " 443.8 " 77.98 " 15.72 "
Minimum 3.004" 2.903" 3.302" 6.685" 9.666" 23.14 " 261.6 " 276.0 " 213.1 " 77.85 " 16.30 " 6.662"
Total 146.5 " 216.7 " 193.8 " 395.6 " 654.5 " 3575 "19241 "21109 "19072 " 5574 " 1169 " 317.8 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 196.3 " " ... Relative Uncertainty +/-10%
Ann. Median 25.04 "
Annual Total 71667 "
Maximum Minimum
Daily 2803 " 2.903"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 6.169" 3.949" 4.540" 7.573" 13.66 " 22.88 " 499.2 " 318.9 " 772.2 " 107.4 " 42.75 " 23.07 " 1
2 6.148" 3.581" 5.855" 7.752" 13.34 " 22.05 " 477.8 " 366.8 " 649.9 " 105.8 " 41.59 " 20.64 " 2
3 6.658" 3.794" 5.553" 5.401" 12.49 " 21.06 " 739.1 " 338.5 " 543.1 " 104.9 " 40.40 " 18.05 " 3
4 5.777" 3.331" 4.991" 5.221" 11.41 " 21.55 " 701.2 " 308.2 " 467.3 " 98.43 " 39.22 " 15.95 " 4
5 9.951" 3.169" 7.939" 7.127" 11.48 " 22.23 " 548.7 " 379.7 " 434.4 " 94.88 " 42.06 " 16.02 " 5
6 11.19 " 3.787" 6.990" 9.308" 11.22 " 24.01 " 457.1 " 576.1 " 421.2 " 94.48 " 44.20 " 14.04 " 6
7 10.48 " 4.066" 7.206" 7.178" 13.27 " 39.54 " 677.8 " 540.7 " 445.6 " 104.3 " 40.07 " 13.29 " 7
8 10.02 " 3.843" 7.254" 7.836" 14.72 " 61.57 "1430 " 449.0 " 424.6 " 122.9 " 38.74 " 12.33 " 8
9 14.44 " 3.988" 7.080" 6.483" 16.63 " 92.64 "1350 " 379.1 " 385.6 " 116.5 " 38.25 " 9.359" 9
10 8.569" 4.788" 8.000" 5.760" 19.19 " 110.0 " 927.0 " 330.6 " 349.7 " 109.1 " 36.64 " 8.444" 10
11 6.653" 5.958" 6.536" 5.939" 20.70 " 282.0 " 683.2 " 314.8 " 315.2 " 104.5 " 37.03 " 8.732" 11
12 6.321" 5.692" 6.718" 8.782" 24.22 " 655.9 " 547.1 " 505.3 " 282.7 " 122.8 " 37.32 " 8.424" 12
13 6.276" 4.514" 4.572" 10.26 " 23.32 " 937.3 " 466.1 " 612.7 " 256.9 " 173.2 " 37.85 " 7.559" 13
14 5.067" 5.516" 4.535" 10.01 " 28.96 " 572.8 " 402.1 " 610.1 " 238.4 " 154.2 " 37.45 " 7.593" 14
15 4.285" 4.869" 5.650" 9.926" 28.29 " 372.6 " 351.3 " 611.8 " 223.3 " 132.3 " 36.17 " 7.416" 15
16 4.396" 3.892" 7.790" 11.20 " 25.66 " 298.7 " 315.5 " 526.1 " 209.7 " 117.0 " 34.29 " 6.976" 16
17 4.204" 3.716" 7.788" 11.22 " 25.11 " 734.4 " 284.1 " 460.5 " 198.3 " 106.1 " 34.21 " 7.200" 17
18 4.604" 4.300" 7.219" 11.89 " 31.09 " 810.1 " 267.3 " 453.7 " 188.4 " 96.83 " 33.47 " 10.65 " 18
19 4.321" 3.897" 6.029" 12.87 " 27.12 " 522.3 " 248.3 " 429.3 " 184.9 " 87.80 " 32.40 " 9.469" 19
20 5.125" 4.469" 5.591" 14.02 " 24.36 " 380.3 " 226.3 " 418.4 " 196.7 " 80.23 " 30.06 " 9.737" 20
21 6.218" 3.775" 4.874" 15.47 " 29.79 " 309.9 " 250.0 " 587.7 " 193.9 " 80.99 " 30.63 " 8.242" 21
22 5.110" 3.921" 5.621" 15.95 " 32.71 " 431.8 " 558.1 " 687.7 " 173.0 " 76.98 " 27.17 " 7.520" 22
23 5.304" 3.527" 7.162" 15.83 " 29.44 " 791.3 " 686.9 " 826.1 " 160.0 " 72.19 " 25.44 " 7.453" 23
24 5.063" 5.059" 6.227" 16.94 " 28.20 " 611.7 " 563.7 "1327 " 149.0 " 68.27 " 23.36 " 8.832" 24
25 4.293" 4.708" 5.373" 19.46 " 27.51 " 457.9 " 458.9 "2018 " 140.1 " 63.50 " 22.85 " 7.272" 25
26 3.552" 3.639" 5.752" 17.57 " 26.18 " 363.2 " 391.9 "2655 " 132.8 " 58.91 " 24.21 " 6.937" 26
27 3.992" 3.537" 6.473" 14.00 " 24.72 " 418.3 " 343.7 "2929 " 127.6 " 54.81 " 22.96 " 14.83 " 27
28 4.055" 4.785" 6.429" 13.12 " 23.72 "1055 " 309.7 "2280 " 122.9 " 51.88 " 22.86 " 17.06 " 28
29 4.724" 4.688" 6.974" 14.08 " 22.77 " 896.9 " 286.8 "1611 " 116.3 " 48.59 " 22.82 " 8.411" 29
30 4.100" 7.122" 12.97 " 21.89 " 632.6 " 294.3 "1178 " 110.9 " 45.38 " 22.67 " 7.851" 30
31 3.821" 7.569" 22.19 " 301.2 " 929.1 " 43.42 " 6.990" 31
Mean 6.157" 4.233" 6.368" 11.04 " 22.11 " 399.1 " 517.6 " 837.4 " 287.2 " 93.50 " 33.30 " 10.85 "
Median 5.125" 3.949" 6.473" 10.73 " 23.72 " 376.4 " 458.9 " 540.7 " 216.5 " 96.83 " 35.23 " 8.732"
Maximum 14.44 " 5.958" 8.000" 19.46 " 32.71 "1055 "1430 "2929 " 772.2 " 173.2 " 44.20 " 23.07 "
Minimum 3.552" 3.169" 4.535" 5.221" 11.22 " 21.06 " 226.3 " 308.2 " 110.9 " 43.42 " 22.67 " 6.937"
Total 190.9 " 122.8 " 197.4 " 331.1 " 685.4 "11972 "16045 "25958 " 8615 " 2899 " 999.1 " 336.4 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 186.8 " " ... Relative Uncertainty +/-10%
Ann. Median 24.54 "
Annual Total 68351 "
Maximum Minimum
Daily 2929 " 3.169"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 7.802" 4.034" 7.077" 16.25 " 23.26 " 80.60 " 470.2 " 241.3 " 398.6 " 494.4 " 175.9 " 59.74 " 1
2 7.957" 5.290" 6.800" 37.25 " 28.23 " 74.83 " 398.4 " 259.9 " 358.2 " 610.4 " 159.9 " 54.28 " 2
3 7.540" 5.974" 5.989" 34.47 " 38.43 " 73.85 " 369.5 " 317.4 " 342.6 " 572.0 " 150.9 " 48.67 " 3
4 7.908" 4.868" 5.432" 35.25 " 31.24 " 76.48 " 665.7 " 299.3 " 339.8 " 520.9 " 142.0 " 43.24 " 4
5 7.398" 4.656" 5.904" 27.49 " 30.11 " 79.92 " 739.5 " 277.0 " 416.2 " 549.4 " 138.4 " 41.32 " 5
6 6.536" 4.581" 4.836" 22.98 " 30.11 " 83.77 " 560.3 " 263.2 "1758 " 672.1 " 139.0 " 40.42 " 6
7 6.735" 4.141" 4.877" 20.78 " 30.01 " 114.2 " 450.5 " 257.8 "3260 " 979.9 " 141.0 " 36.40 " 7
8 6.302" 4.428" 7.290" 19.13 " 29.64 " 169.7 " 385.3 " 247.5 "3569 " 887.2 " 137.5 " 27.77 " 8
9 6.318" 4.123" 7.142" 16.85 " 29.02 " 332.7 " 344.6 " 228.6 "2586 " 717.4 " 135.7 " 26.18 " 9
10 6.069" 4.113" 6.941" 17.07 " 26.56 " 940.7 " 305.9 " 217.1 "1829 " 621.7 " 128.5 " 32.57 " 10
11 6.048" 3.560" 7.640" 16.72 " 27.79 "1125 " 275.4 " 218.2 "1325 " 523.9 " 116.2 " 35.03 " 11
12 5.513" 4.051" 9.005" 16.22 " 23.93 " 865.9 " 252.5 " 230.8 "1150 " 462.0 " 105.6 " 36.05 " 12
13 6.037" 5.118" 7.674" 15.58 " 26.28 " 819.0 " 295.8 " 542.9 "1105 " 420.3 " 97.29 " 36.17 " 13
14 6.387" 5.981" 9.171" 15.46 " 25.02 " 675.3 " 462.1 " 883.7 "1014 " 380.0 " 88.24 " 37.55 " 14
15 6.024" 9.687" 10.25 " 14.87 " 26.91 " 547.4 " 451.3 " 939.9 " 881.7 " 344.7 " 81.78 " 34.34 " 15
16 4.676" 8.543" 9.836" 14.42 " 41.87 " 482.1 " 393.6 "1633 " 737.7 " 310.6 " 75.03 " 34.45 " 16
17 6.126" 7.138" 8.951" 14.63 " 82.90 " 455.9 " 349.3 "3112 " 807.9 " 281.2 " 67.33 " 31.03 " 17
18 7.468" 8.751" 8.122" 14.45 " 167.1 " 445.9 " 309.0 "4365 "1048 " 262.8 " 61.41 " 28.72 " 18
19 5.677" 3.796" 7.274" 14.38 " 369.2 " 389.8 " 277.8 "4034 " 917.5 " 246.1 " 56.67 " 27.22 " 19
20 5.328" 4.100" 5.898" 13.85 " 671.8 " 329.5 " 260.1 "2193 " 754.9 " 231.7 " 52.35 " 26.27 " 20
21 4.990" 4.861" 6.215" 14.61 " 492.3 " 286.0 " 379.6 "1482 " 678.3 " 220.0 " 48.91 " 25.47 " 21
22 6.980" 7.420" 6.894" 16.59 " 336.3 " 256.5 " 538.9 "1165 " 613.9 " 243.1 " 44.62 " 25.15 " 22
23 4.931" 7.302" 6.974" 19.11 " 254.6 " 347.9 " 496.4 " 915.1 " 579.3 " 265.7 " 41.58 " 22.44 " 23
24 4.809" 6.384" 7.079" 18.80 " 202.6 " 687.4 " 449.7 " 746.8 " 533.8 " 241.2 " 39.69 " 21.45 " 24
25 4.028" 5.924" 7.015" 18.54 " 166.4 " 660.9 " 400.3 " 640.9 " 472.3 " 235.9 " 36.59 " 21.48 " 25
26 4.169" 9.099" 7.493" 17.79 " 142.3 " 509.4 " 371.0 " 570.3 " 427.0 " 242.6 " 34.88 " 21.78 " 26
27 4.903" 6.320" 7.714" 18.11 " 125.2 " 424.2 " 342.6 " 514.5 " 397.0 " 231.0 " 37.08 " 20.71 " 27
28 4.781" 7.336" 7.326" 18.56 " 113.0 " 362.1 " 332.4 " 500.8 " 396.7 " 208.7 " 41.71 " 20.32 " 28
29 4.551" 8.759" 24.78 " 103.7 " 338.8 " 316.8 " 517.5 " 385.6 " 191.0 " 58.52 " 18.88 " 29
30 4.287" 8.950" 24.06 " 95.02 " 459.6 " 294.7 " 484.0 " 378.4 " 180.7 " 66.08 " 16.58 " 30
31 3.495" 9.908" 87.72 " 264.1 " 439.6 " 181.8 " 16.33 " 31
Mean 5.864" 5.771" 7.433" 19.64 " 125.1 " 416.5 " 393.7 " 927.1 " 982.1 " 404.2 " 90.01 " 31.23 "
Median 6.037" 5.204" 7.274" 17.43 " 41.87 " 375.9 " 371.0 " 514.5 " 708.0 " 310.6 " 78.40 " 28.72 "
Maximum 7.957" 9.687" 10.25 " 37.25 " 671.8 "1125 " 739.5 "4365 "3569 " 979.9 " 175.9 " 59.74 "
Minimum 3.495" 3.560" 4.836" 13.85 " 23.26 " 73.85 " 252.5 " 217.1 " 339.8 " 180.7 " 34.88 " 16.33 "
Total 181.8 " 161.6 " 230.4 " 589.1 " 3879 "12495 "12203 "28739 "29462 "12530 " 2700 " 968.0 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 285.3 " " ... Relative Uncertainty +/-10%
Ann. Median 74.83 "
Annual Total 104139 "
Maximum Minimum
Daily 4365 " 3.495"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 16.63 " 17.11 " 11.41 " 11.67 " 18.99 " 17.45 " 22.75 " 98.20 " 380.6 " 94.90 " 26.18 " 11.65 " 1
2 16.67 " 15.02 " 11.29 " 11.55 " 18.49 " 16.87 " 23.58 " 99.51 " 354.9 " 89.38 " 24.28 " 10.26 " 2
3 17.84 " 13.83 " 10.94 " 13.22 " 17.52 " 15.86 " 23.59 " 101.8 " 298.2 " 86.07 " 23.12 " 9.945" 3
4 17.16 " 12.89 " 8.690" 14.32 " 18.25 " 15.61 " 22.97 " 92.81 " 257.9 " 87.77 " 22.31 " 11.91 " 4
5 15.36 " 12.18 " 7.910" 12.61 " 18.28 " 17.47 " 22.61 " 92.10 " 229.3 " 113.2 " 22.96 " 10.47 " 5
6 12.36 " 11.10 " 6.983" 11.21 " 18.59 " 19.17 " 22.41 " 102.8 " 204.3 " 113.3 " 22.26 " 10.79 " 6
7 12.15 " 11.82 " 7.944" 10.77 " 18.29 " 20.14 " 21.83 " 121.2 " 182.6 " 96.45 " 19.71 " 10.81 " 7
8 12.70 " 10.55 " 7.763" 10.16 " 17.96 " 19.40 " 21.46 " 283.9 " 167.0 " 85.11 " 18.20 " 11.95 " 8
9 12.86 " 9.390" 7.567" 10.79 " 20.09 " 18.77 " 22.66 " 407.1 " 150.9 " 75.87 " 17.35 " 11.24 " 9
10 11.85 " 10.30 " 8.347" 12.75 " 17.87 " 18.44 " 26.59 " 314.4 " 142.3 " 69.57 " 20.71 " 9.024" 10
11 10.49 " 9.103" 8.384" 12.23 " 17.20 " 17.65 " 25.62 " 233.2 " 172.0 " 66.31 " 18.46 " 8.616" 11
12 10.64 " 8.599" 7.458" 11.30 " 16.41 " 17.22 " 25.01 " 194.5 " 366.8 " 68.26 " 16.70 " 9.649" 12
13 10.80 " 8.892" 8.735" 12.39 " 16.35 " 18.02 " 25.52 " 199.0 " 484.3 " 78.81 " 16.30 " 8.821" 13
14 11.95 " 10.71 " 11.99 " 11.27 " 16.01 " 17.32 " 26.22 " 202.2 " 399.9 " 81.00 " 16.56 " 8.597" 14
15 10.92 " 9.488" 10.21 " 12.35 " 16.69 " 17.21 " 25.03 " 343.5 " 316.7 " 71.92 " 15.15 " 7.868" 15
16 13.65 " 8.996" 8.292" 12.95 " 15.18 " 16.95 " 23.88 " 620.1 " 263.1 " 65.49 " 13.89 " 7.405" 16
17 14.16 " 11.84 " 7.955" 13.26 " 20.26 " 16.73 " 23.13 " 531.5 " 227.9 " 61.04 " 14.82 " 7.417" 17
18 13.03 " 12.17 " 9.329" 14.15 " 23.72 " 16.88 " 22.13 " 384.5 " 205.8 " 56.98 " 14.08 " 7.802" 18
19 12.28 " 10.29 " 8.980" 12.68 " 19.37 " 17.35 " 21.86 " 494.4 " 195.1 " 52.40 " 14.51 " 8.264" 19
20 11.22 " 10.99 " 9.573" 10.97 " 15.45 " 18.82 " 25.12 " 645.3 " 186.2 " 48.69 " 22.75 " 7.817" 20
21 10.64 " 10.50 " 10.63 " 11.12 " 14.34 " 20.13 " 31.44 " 598.7 " 179.2 " 46.08 " 16.80 " 7.805" 21
22 10.09 " 9.618" 11.01 " 13.21 " 14.12 " 21.80 " 31.95 "1155 " 189.7 " 43.84 " 16.13 " 7.299" 22
23 10.17 " 9.296" 11.99 " 14.09 " 15.82 " 20.83 " 37.20 "2386 " 195.5 " 40.81 " 12.78 " 8.087" 23
24 13.06 " 9.644" 15.68 " 15.50 " 14.68 " 20.23 " 44.42 "1685 " 177.3 " 38.10 " 10.53 " 6.622" 24
25 15.01 " 10.13 " 18.54 " 17.74 " 14.57 " 19.80 " 56.37 " 968.6 " 160.5 " 36.46 " 10.51 " 7.132" 25
26 19.20 " 8.696" 18.73 " 19.50 " 16.07 " 19.91 " 60.73 " 668.8 " 145.1 " 34.95 " 9.124" 9.034" 26
27 22.04 " 10.30 " 18.15 " 18.66 " 17.26 " 20.22 " 71.33 " 510.9 " 131.6 " 32.41 " 8.828" 9.827" 27
28 21.61 " 13.19 " 16.12 " 18.51 " 16.92 " 22.40 " 81.10 " 411.5 " 121.5 " 29.95 " 9.947" 9.064" 28
29 21.73 " 12.06 " 19.04 " 18.93 " 22.55 " 92.39 " 342.2 " 111.8 " 29.07 " 12.81 " 7.735" 29
30 21.35 " 11.50 " 19.71 " 18.62 " 22.22 " 96.07 " 301.0 " 103.1 " 28.03 " 12.48 " 5.465" 30
31 18.60 " 11.73 " 17.12 " 88.15 " 304.6 " 27.56 " 5.839" 31
Mean 14.46 " 10.95 " 10.84 " 13.66 " 17.40 " 18.78 " 37.58 " 480.5 " 223.4 " 62.90 " 16.67 " 8.846"
Median 13.03 " 10.40 " 10.21 " 12.72 " 17.26 " 18.61 " 25.12 " 342.2 " 192.4 " 65.49 " 16.43 " 8.616"
Maximum 22.04 " 17.11 " 18.73 " 19.71 " 23.72 " 22.55 " 96.07 "2386 " 484.3 " 113.3 " 26.18 " 11.95 "
Minimum 10.09 " 8.599" 6.983" 10.16 " 14.12 " 15.61 " 21.46 " 92.10 " 103.1 " 27.56 " 8.828" 5.465"
Total 448.2 " 306.6 " 335.9 " 409.7 " 539.4 " 563.4 " 1165 "14895 " 6701 " 1950 " 500.2 " 274.2 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 76.95 " " ... Relative Uncertainty +/-10%
Ann. Median 17.52 "
Annual Total 28088 "
Maximum Minimum
Daily 2386 " 5.465"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 4.941" 4.521" 8.874" 7.387" 21.54 " 18.32 " 60.93 "1811 "1733 " 550.4 " 97.46 " 14.58 " 1
2 6.751" 4.091" 12.40 " 9.189" 22.64 " 17.59 " 73.48 "1394 "1244 " 482.4 " 89.61 " 14.96 " 2
3 11.35 " 4.093" 16.24 " 10.67 " 21.02 " 17.14 " 95.48 " 985.7 " 961.3 " 419.5 " 80.03 " 14.19 " 3
4 11.51 " 3.842" 17.01 " 9.447" 20.22 " 16.66 " 139.2 " 710.8 " 795.1 " 364.0 " 71.24 " 13.63 " 4
5 13.05 " 4.202" 15.49 " 8.843" 19.48 " 16.26 " 124.8 " 552.8 " 790.2 " 322.2 " 64.60 " 14.44 " 5
6 12.14 " 6.183" 13.61 " 7.718" 18.85 " 15.83 " 97.93 " 524.2 " 684.6 " 289.1 " 58.83 " 14.68 " 6
7 13.19 " 6.143" 9.835" 8.295" 18.08 " 15.75 " 81.82 " 746.7 " 623.0 " 260.1 " 54.52 " 13.54 " 7
8 13.34 " 4.884" 7.648" 8.007" 17.10 " 14.63 " 113.9 " 734.7 " 737.6 " 247.4 " 50.98 " 13.12 " 8
9 12.33 " 4.761" 6.902" 8.919" 15.91 " 14.96 " 199.0 " 565.0 " 696.2 " 341.7 " 47.45 " 13.03 " 9
10 9.701" 5.491" 6.960" 10.99 " 25.16 " 14.45 " 200.9 " 510.7 " 570.8 " 401.6 " 43.50 " 12.12 " 10
11 8.561" 5.210" 9.001" 10.62 " 23.82 " 15.19 " 155.2 " 642.5 " 490.5 " 365.5 " 40.94 " 12.16 " 11
12 6.987" 5.014" 8.602" 9.252" 18.09 " 15.22 " 127.0 " 641.7 " 547.7 " 327.5 " 37.36 " 11.95 " 12
13 7.725" 6.438" 9.073" 9.271" 16.31 " 15.38 " 108.6 " 512.0 " 980.5 " 282.2 " 36.27 " 11.08 " 13
14 7.859" 6.540" 7.440" 8.507" 15.24 " 15.88 " 95.54 " 440.9 "1031 " 246.6 " 33.47 " 10.40 " 14
15 7.288" 6.727" 6.740" 10.89 " 14.93 " 16.52 " 85.64 " 397.9 "1031 " 212.7 " 31.81 " 9.516" 15
16 7.905" 6.671" 6.259" 16.23 " 14.72 " 15.94 " 77.25 " 348.5 "1029 " 186.9 " 29.83 " 9.670" 16
17 7.705" 8.538" 5.859" 16.75 " 14.51 " 16.79 " 70.01 " 307.1 " 887.3 " 171.0 " 29.15 " 13.12 " 17
18 6.356" 9.733" 6.368" 17.33 " 14.29 " 16.75 " 64.45 " 278.6 " 809.7 " 177.9 " 28.00 " 14.59 " 18
19 6.155" 9.473" 7.728" 16.30 " 14.44 " 17.12 " 63.73 " 257.3 " 787.6 " 189.8 " 26.90 " 16.00 " 19
20 5.930" 10.06 " 7.538" 15.88 " 14.54 " 17.46 " 101.2 " 252.0 " 711.9 " 173.8 " 25.99 " 20.81 " 20
21 6.205" 8.606" 7.824" 15.35 " 14.13 " 17.41 " 173.7 " 261.9 " 697.9 " 162.1 " 24.88 " 20.48 " 21
22 7.213" 7.026" 7.481" 15.73 " 14.06 " 17.72 " 296.1 " 246.5 " 671.8 " 165.7 " 23.39 " 19.07 " 22
23 7.917" 6.118" 6.944" 16.35 " 14.36 " 18.38 " 584.2 " 426.4 " 624.6 " 139.3 " 22.09 " 17.51 " 23
24 6.546" 5.527" 7.779" 15.86 " 14.26 " 22.27 "1072 " 506.1 " 801.4 " 124.9 " 21.56 " 15.83 " 24
25 5.721" 6.112" 8.575" 15.18 " 14.60 " 21.56 "1389 " 447.3 "1328 " 114.2 " 20.81 " 13.99 " 25
26 4.977" 6.558" 9.387" 14.23 " 16.61 " 20.28 "1171 " 826.7 "1229 " 108.8 " 18.63 " 12.39 " 26
27 4.113" 7.244" 11.02 " 13.64 " 16.36 " 22.32 " 824.4 "2464 "1114 " 106.8 " 16.75 " 12.53 " 27
28 4.986" 7.854" 10.41 " 13.58 " 19.87 " 45.90 " 931.7 "2002 " 940.3 " 110.8 " 14.82 " 11.56 " 28
29 5.716" 9.826" 14.56 " 21.42 " 45.63 "1124 "1783 " 776.7 " 115.2 " 14.12 " 9.283" 29
30 6.665" 8.979" 17.29 " 19.11 " 47.68 " 927.8 "3358 " 642.7 " 110.2 " 14.46 " 8.011" 30
31 6.077" 8.147" 19.08 " 1474 "3080 " 104.9 " 7.269" 31
Mean 7.965" 6.345" 9.224" 12.41 " 17.57 " 20.10 " 390.5 " 903.7 " 865.6 " 237.9 " 38.98 " 13.40 "
Median 7.213" 6.163" 8.575" 12.29 " 16.61 " 16.96 " 127.0 " 552.8 " 792.6 " 189.8 " 30.82 " 13.12 "
Maximum 13.34 " 10.06 " 17.01 " 17.33 " 25.16 " 47.68 "1474 "3358 "1733 " 550.4 " 97.46 " 20.81 "
Minimum 4.113" 3.842" 5.859" 7.387" 14.06 " 14.45 " 60.93 " 246.5 " 490.5 " 104.9 " 14.12 " 7.269"
Total 246.9 " 177.7 " 285.9 " 372.3 " 544.7 " 603.0 "12104 "28016 "25969 " 7375 " 1169 " 415.5 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 211.7 " " ... Relative Uncertainty +/-10%
Ann. Median 17.14 "
Annual Total 77279 "
Maximum Minimum
Daily 3358 " 3.842"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 8.746" 6.706" 5.671" 13.75 " 17.08 " 61.97 " 204.7 "1671 " 88.88 " 163.3 " 66.01 " 37.43 " 1
2 10.99 " 6.491" 6.550" 13.79 " 17.41 " 56.08 " 170.5 "1384 " 89.30 " 151.7 " 62.69 " 34.91 " 2
3 10.96 " 6.786" 7.364" 13.61 " 17.06 " 53.30 " 146.7 "1448 " 89.80 " 142.5 " 58.95 " 31.80 " 3
4 9.456" 6.339" 8.899" 16.96 " 16.69 " 50.72 " 131.0 "1067 " 85.91 " 130.9 " 59.07 " 29.68 " 4
5 7.131" 6.168" 9.234" 17.23 " 16.00 " 47.38 " 119.4 " 776.2 " 80.53 " 124.2 " 59.51 " 27.94 " 5
6 6.216" 6.801" 7.620" 17.23 " 16.71 " 47.22 " 110.6 " 617.3 " 75.42 " 125.1 " 63.14 " 25.29 " 6
7 6.251" 5.808" 8.448" 16.32 " 16.93 " 40.59 " 102.8 " 519.1 " 70.96 " 119.0 " 67.33 " 23.53 " 7
8 8.731" 7.461" 8.693" 16.17 " 16.65 " 37.90 " 95.43 " 453.3 " 66.89 " 107.8 " 68.25 " 22.71 " 8
9 9.512" 7.077" 8.617" 15.33 " 16.37 " 41.49 " 93.13 " 396.5 " 63.53 " 97.12 " 67.31 " 22.38 " 9
10 9.253" 8.656" 8.632" 15.36 " 19.25 " 50.55 " 99.10 " 351.5 " 61.20 " 89.29 " 58.29 " 21.70 " 10
11 8.827" 8.721" 8.427" 15.32 " 21.10 " 73.42 " 122.8 " 313.2 " 60.08 " 82.30 " 51.71 " 20.03 " 11
12 8.305" 6.742" 8.207" 14.60 " 20.91 " 81.78 " 153.4 " 277.4 " 59.51 " 76.63 " 49.22 " 18.47 " 12
13 8.020" 5.939" 7.045" 13.50 " 20.34 " 73.67 " 146.6 " 246.6 " 61.11 " 72.34 " 44.07 " 18.05 " 13
14 9.600" 5.613" 8.071" 13.35 " 18.69 " 68.47 " 135.1 " 224.5 " 63.65 " 68.35 " 40.81 " 17.43 " 14
15 9.354" 6.039" 8.496" 13.26 " 18.73 " 70.61 " 168.7 " 206.7 " 65.41 " 52.79 " 37.66 " 15.39 " 15
16 8.130" 6.185" 8.354" 12.97 " 22.91 " 93.39 " 393.8 " 195.3 " 63.99 " 52.28 " 34.79 " 15.61 " 16
17 6.588" 6.091" 8.440" 15.57 " 23.63 " 113.8 " 432.1 " 182.6 " 66.14 " 54.39 " 33.00 " 12.79 " 17
18 6.581" 8.754" 10.52 " 19.83 " 20.64 " 118.4 " 518.4 " 169.7 " 80.53 " 51.71 " 31.50 " 12.01 " 18
19 6.644" 10.91 " 9.696" 19.10 " 19.55 " 103.2 "1141 " 162.3 " 128.0 " 48.83 " 29.59 " 11.51 " 19
20 5.752" 9.549" 9.942" 19.03 " 19.40 " 89.88 "1147 " 156.1 " 149.2 " 45.82 " 28.43 " 10.32 " 20
21 6.747" 9.741" 9.658" 19.34 " 19.20 " 79.80 " 732.5 " 149.6 " 140.4 " 43.26 " 28.09 " 11.65 " 21
22 8.376" 8.344" 9.141" 18.67 " 22.68 " 72.80 " 521.2 " 140.6 " 140.8 " 42.40 " 27.80 " 11.55 " 22
23 7.999" 7.326" 7.843" 18.06 " 30.45 " 69.29 " 607.3 " 131.2 " 139.7 " 42.16 " 28.62 " 9.799" 23
24 7.251" 8.009" 9.025" 18.01 " 30.64 " 66.55 "1474 " 122.2 " 125.3 " 42.44 " 31.43 " 8.540" 24
25 6.341" 7.381" 10.61 " 16.83 " 33.29 " 67.26 "1378 " 112.7 " 171.4 " 48.97 " 32.42 " 8.233" 25
26 5.550" 7.700" 10.20 " 15.91 " 33.60 " 72.49 " 881.3 " 106.5 " 297.4 " 96.64 " 31.18 " 11.91 " 26
27 5.363" 6.616" 8.888" 16.10 " 42.67 " 79.43 " 669.9 " 100.8 " 276.9 " 121.6 " 32.67 " 13.37 " 27
28 6.067" 6.546" 8.090" 16.26 " 61.11 " 116.5 " 657.5 " 96.89 " 232.5 " 96.43 " 35.48 " 12.05 " 28
29 7.614" 5.625" 8.189" 15.91 " 62.33 " 182.5 " 855.7 " 94.55 " 202.0 " 79.62 " 34.63 " 10.11 " 29
30 7.114" 8.008" 16.96 " 55.22 " 229.6 "1081 " 92.48 " 181.0 " 67.09 " 38.66 " 11.92 " 30
31 7.370" 10.24 " 63.75 " 1654 " 90.79 " 68.84 " 9.398" 31
Mean 7.769" 7.246" 8.607" 16.14 " 26.81 " 80.34 " 520.8 " 388.9 " 115.9 " 84.06 " 44.41 " 17.66 "
Median 7.614" 6.786" 8.496" 16.13 " 20.34 " 71.55 " 393.8 " 195.3 " 87.40 " 76.63 " 38.16 " 15.39 "
Maximum 10.99 " 10.91 " 10.61 " 19.83 " 63.75 " 229.6 "1654 "1671 " 297.4 " 163.3 " 68.25 " 37.43 "
Minimum 5.363" 5.613" 5.671" 12.97 " 16.00 " 37.90 " 93.13 " 90.79 " 59.51 " 42.16 " 27.80 " 8.233"
Total 240.8 " 210.1 " 266.8 " 484.3 " 831.0 " 2410 "16145 "12057 " 3477 " 2606 " 1332 " 547.5 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 111.0 " " ... Relative Uncertainty +/-10%
Ann. Median 32.55 "
Annual Total 40608 "
Maximum Minimum
Daily 1671 " 5.363"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 7.251" 6.370" 10.65 " 13.13 " 8.528" 18.31 "1722 " 428.8 " 332.2 " 476.4 " 60.67 " 28.40 " 1
2 7.012" 6.312" 11.04 " 12.26 " 7.982" 18.24 " 860.0 " 383.3 " 397.3 " 426.4 " 55.45 " 26.66 " 2
3 6.757" 8.748" 13.45 " 13.92 " 7.606" 18.17 " 558.7 " 348.4 " 415.2 " 400.4 " 51.52 " 26.05 " 3
4 7.341" 7.655" 10.93 " 12.41 " 6.993" 26.06 " 415.4 " 320.8 " 357.1 " 377.1 " 46.72 " 24.10 " 4
5 7.503" 7.378" 9.646" 11.00 " 8.204" 29.98 " 335.0 " 298.7 " 352.2 " 337.2 " 44.04 " 19.16 " 5
6 6.257" 6.009" 8.939" 11.85 " 7.519" 23.35 " 287.2 " 338.7 " 374.0 " 300.4 " 43.56 " 16.96 " 6
7 6.555" 5.595" 8.694" 10.88 " 7.536" 22.42 " 259.1 " 458.2 " 359.8 " 270.3 " 41.96 " 18.46 " 7
8 6.339" 5.474" 8.644" 9.317" 7.209" 21.98 " 242.8 " 426.9 " 461.6 " 252.2 " 40.36 " 18.92 " 8
9 6.246" 5.862" 7.112" 9.244" 7.161" 21.21 " 246.2 " 369.3 " 502.2 " 237.1 " 39.85 " 17.93 " 9
10 6.308" 6.954" 7.256" 8.113" 7.741" 24.01 " 522.7 " 342.3 " 483.6 " 221.5 " 38.50 " 15.41 " 10
11 6.334" 7.189" 7.164" 7.742" 9.275" 29.35 " 864.7 " 371.0 " 769.1 " 205.9 " 37.25 " 13.20 " 11
12 5.470" 6.748" 6.769" 7.011" 9.865" 23.30 " 738.1 " 446.9 "1277 " 188.9 " 38.45 " 10.97 " 12
13 7.383" 6.080" 6.800" 7.717" 10.31 " 23.85 " 514.9 " 603.2 "1203 " 177.1 " 46.89 " 9.948" 13
14 6.760" 5.718" 8.014" 8.308" 9.476" 26.27 " 397.6 "1148 " 929.4 " 164.4 " 52.22 " 12.33 " 14
15 6.349" 4.967" 7.546" 8.106" 9.640" 27.57 " 330.3 "3019 "1017 " 152.5 " 62.47 " 14.69 " 15
16 5.583" 5.442" 7.158" 7.400" 9.842" 30.38 " 360.2 "4029 "1056 " 142.1 " 55.74 " 15.54 " 16
17 6.094" 8.532" 9.058" 7.141" 9.056" 33.78 " 638.4 "2445 " 899.3 " 131.0 " 50.66 " 15.76 " 17
18 5.770" 8.066" 8.968" 6.925" 9.980" 33.48 " 740.3 "1761 "1035 " 120.7 " 48.32 " 15.08 " 18
19 6.122" 7.326" 9.308" 7.720" 9.619" 39.16 "1436 "1623 "1316 " 111.5 " 47.65 " 13.49 " 19
20 6.321" 6.517" 10.53 " 8.057" 10.46 " 40.34 "3685 "1346 "1161 " 103.1 " 42.52 " 11.44 " 20
21 7.086" 5.717" 11.08 " 8.806" 13.16 " 80.99 "5286 "1169 "1521 " 96.34 " 43.42 " 9.539" 21
22 6.502" 5.202" 10.91 " 8.725" 19.84 " 137.0 "3569 "1022 "1904 " 88.00 " 50.07 " 8.134" 22
23 6.278" 5.441" 12.45 " 9.334" 21.13 " 138.1 "2664 " 942.6 "1576 " 81.31 " 46.51 " 9.071" 23
24 6.457" 17.08 " 12.41 " 10.03 " 28.40 " 109.7 "2370 " 811.9 "1186 " 74.79 " 42.20 " 10.05 " 24
25 7.380" 12.63 " 11.76 " 9.610" 36.25 " 122.2 "1625 " 681.3 " 918.7 " 69.04 " 37.95 " 9.546" 25
26 6.016" 11.24 " 10.44 " 9.147" 31.15 " 192.6 "1256 " 591.9 " 735.1 " 65.20 " 36.47 " 10.42 " 26
27 8.615" 10.79 " 9.262" 8.727" 26.52 " 265.7 "1022 " 519.6 " 608.5 " 62.07 " 34.34 " 10.71 " 27
28 7.098" 10.42 " 9.925" 8.684" 23.46 " 525.3 " 828.8 " 462.3 " 562.1 " 61.87 " 33.31 " 12.81 " 28
29 6.106" 11.43 " 8.909" 21.51 "1597 " 687.0 " 413.5 " 593.3 " 61.96 " 31.70 " 12.46 " 29
30 5.049" 10.37 " 8.687" 19.81 "3317 " 569.8 " 368.5 " 542.4 " 64.11 " 30.30 " 12.99 " 30
31 5.825" 13.80 " 18.92 " 488.9 " 339.8 " 64.85 " 12.93 " 31
Mean 6.522" 7.552" 9.727" 9.297" 14.00 " 233.9 "1146 " 897.7 " 828.2 " 180.2 " 44.37 " 14.94 "
Median 6.339" 6.633" 9.646" 8.767" 9.842" 30.18 " 687.0 " 462.3 " 752.1 " 142.1 " 43.49 " 13.20 "
Maximum 8.615" 17.08 " 13.80 " 13.92 " 36.25 "3317 "5286 "4029 "1904 " 476.4 " 62.47 " 28.40 "
Minimum 5.049" 4.967" 6.769" 6.925" 6.993" 18.17 " 242.8 " 298.7 " 332.2 " 61.87 " 30.30 " 8.134"
Total 202.2 " 211.5 " 301.5 " 278.9 " 434.1 " 7017 "35521 "27829 "24845 " 5586 " 1331 " 463.1 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 285.0 " " ... Relative Uncertainty +/-10%
Ann. Median 23.85 "
Annual Total 104019 "
Maximum Minimum
Daily 5286 " 4.967"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 10.32 " 5.239" 5.707" 11.02 " 11.86 " 21.53 " 22.27 " 67.40 " 35.82 " 20.10 " 7.338" 6.828" 1
2 8.776" 7.589" 6.572" 9.745" 12.01 " 21.24 " 23.06 " 60.70 " 35.39 " 21.19 " 8.530" 6.716" 2
3 9.026" 8.001" 6.969" 9.581" 11.89 " 20.51 " 23.73 " 55.74 " 34.38 " 20.28 " 7.703" 7.061" 3
4 11.08 " 7.654" 6.991" 12.30 " 12.03 " 19.93 " 22.15 " 51.41 " 33.26 " 18.65 " 7.183" 8.160" 4
5 12.32 " 7.051" 7.796" 13.21 " 12.16 " 19.73 " 20.76 " 48.12 " 31.87 " 17.58 " 7.723" 7.938" 5
6 10.70 " 8.444" 6.824" 14.45 " 11.20 " 19.35 " 20.19 " 45.43 " 31.27 " 17.55 " 8.152" 9.410" 6
7 9.256" 9.088" 7.348" 14.73 " 11.59 " 19.18 " 20.08 " 43.87 " 31.91 " 17.11 " 7.785" 10.12 " 7
8 8.544" 11.66 " 7.278" 13.53 " 11.38 " 18.82 " 21.30 " 42.15 " 34.86 " 17.10 " 7.583" 9.984" 8
9 9.214" 10.73 " 7.240" 12.86 " 11.78 " 18.49 " 24.85 " 40.72 " 37.33 " 16.05 " 9.233" 10.43 " 9
10 8.996" 9.775" 8.080" 10.70 " 12.00 " 17.72 " 29.22 " 39.31 " 38.67 " 15.48 " 14.52 " 8.667" 10
11 8.246" 8.787" 8.001" 9.055" 11.89 " 17.04 " 32.28 " 38.05 " 40.30 " 15.86 " 18.75 " 9.368" 11
12 8.353" 7.974" 7.893" 9.314" 11.58 " 16.60 " 69.85 " 43.57 " 39.02 " 16.35 " 18.43 " 8.853" 12
13 8.198" 7.077" 7.213" 12.32 " 12.26 " 16.54 " 83.08 " 53.36 " 37.29 " 15.76 " 15.05 " 7.927" 13
14 8.245" 7.092" 7.073" 17.21 " 12.68 " 18.01 " 84.54 " 67.79 " 35.57 " 15.18 " 13.73 " 7.543" 14
15 7.404" 8.280" 7.807" 21.57 " 13.15 " 20.02 " 78.42 " 74.44 " 33.52 " 15.17 " 16.36 " 7.510" 15
16 6.245" 9.923" 8.338" 22.58 " 13.29 " 20.31 " 64.78 " 69.17 " 32.72 " 13.57 " 16.86 " 6.467" 16
17 5.529" 9.087" 8.817" 20.75 " 13.17 " 19.64 " 56.87 " 64.98 " 31.49 " 12.94 " 15.71 " 5.927" 17
18 5.788" 9.814" 7.419" 19.02 " 13.36 " 19.82 " 51.75 " 61.38 " 29.30 " 12.08 " 14.31 " 5.528" 18
19 8.731" 7.662" 7.409" 17.93 " 13.37 " 19.82 " 47.83 " 57.88 " 26.95 " 12.18 " 12.36 " 4.646" 19
20 7.777" 8.311" 7.708" 17.10 " 13.38 " 19.85 " 46.64 " 54.73 " 24.84 " 12.40 " 10.94 " 5.532" 20
21 7.006" 10.38 " 7.479" 16.11 " 13.36 # 20.15 " 44.78 " 52.73 " 24.31 " 12.79 " 9.984" 7.210" 21
22 6.934" 10.60 " 6.931" 15.67 " 14.66 # 20.57 " 43.28 " 50.19 " 24.26 " 14.14 " 9.420" 7.695" 22
23 8.094" 9.647" 9.004" 14.98 " 16.88 # 37.79 " 41.60 " 47.87 " 22.63 " 14.12 " 9.272" 6.792" 23
24 7.114" 8.642" 11.61 " 14.17 " 20.65 # 27.99 " 39.42 " 46.54 " 22.57 " 11.67 " 9.181" 5.610" 24
25 6.234" 6.590" 11.68 " 13.49 " 17.42 " 23.98 " 37.52 " 44.79 " 21.43 " 11.23 " 8.090" 5.904" 25
26 7.967" 6.545" 12.32 " 12.78 " 17.97 " 23.01 " 38.67 " 44.00 " 22.33 " 11.10 " 8.339" 4.855" 26
27 9.017" 6.333" 12.90 " 12.80 " 20.41 " 23.31 " 46.66 " 43.07 " 20.97 " 9.530" 8.153" 5.441" 27
28 7.998" 6.278" 12.90 " 12.29 " 24.54 " 23.14 " 48.52 " 41.61 " 21.95 " 9.097" 7.144" 5.648" 28
29 6.269" 12.62 " 12.51 " 20.01 " 22.40 " 59.80 " 39.51 " 20.35 " 8.582" 7.320" 5.695" 29
30 6.428" 12.44 " 12.60 " 19.20 " 21.77 " 68.94 " 37.86 " 19.47 " 8.406" 6.739" 5.989" 30
31 5.512" 11.93 " 20.35 " 74.53 " 36.61 " 7.583" 5.356" 31
Mean 8.107" 8.366" 8.720" 14.21 " 14.56 # 20.94 " 44.75 " 50.48 " 29.87 " 14.22 " 10.73 " 7.123"
Median 8.198" 8.296" 7.796" 13.35 " 13.17 # 19.98 " 43.28 " 47.87 " 31.68 " 14.14 " 9.207" 6.828"
Maximum 12.32 " 11.66 " 12.90 " 22.58 " 24.54 # 37.79 " 84.54 " 74.44 " 40.30 " 21.19 " 18.75 " 10.43 "
Minimum 5.512" 5.239" 5.707" 9.055" 11.20 # 16.54 " 20.08 " 36.61 " 19.47 " 7.583" 6.739" 4.646"
Total 251.3 " 234.3 " 270.3 " 426.4 " 451.5 # 628.3 "1387 "1565 " 896.0 " 440.8 " 321.9 " 220.8 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 19.44 # " ... Relative Uncertainty +/-10%
Ann. Median 12.94 # # ... Relative Uncertainty +/-15%
Annual Total 7094 #
Maximum Minimum
Daily 84.54 # 4.646#
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 4.809" 10.44 " 4.783" 5.329" 14.22 " 22.43 " 219.0 "2256 " 427.1 " 318.2 " 68.67 " 25.57 " 1
2 4.342" 8.912" 4.205" 6.687" 15.60 " 25.63 " 253.0 "1921 " 429.6 " 283.1 " 62.79 " 24.29 " 2
3 4.094" 9.890" 3.974" 6.150" 14.79 " 29.26 " 210.3 "1735 " 463.7 " 272.8 " 57.64 " 22.97 " 3
4 4.404" 10.46 " 4.007" 6.695" 13.79 " 24.55 " 164.1 "1362 " 435.3 " 330.7 " 53.85 " 21.66 " 4
5 6.222" 8.814" 4.250" 7.926" 13.72 " 21.27 " 131.6 " 980.6 " 386.0 " 310.2 " 53.70 " 20.71 " 5
6 7.990" 6.863" 3.889" 7.400" 13.31 " 18.48 " 108.7 " 702.5 " 337.2 " 276.0 " 55.32 " 20.02 " 6
7 7.762" 5.890" 3.871" 7.736" 12.87 " 17.12 " 93.01 " 534.4 " 293.4 " 244.6 " 66.71 " 20.86 " 7
8 8.173" 6.500" 3.551" 7.970" 12.22 " 16.37 " 80.00 " 439.7 " 258.6 " 215.7 " 94.96 " 20.76 " 8
9 7.533" 7.168" 6.024" 7.811" 11.57 " 15.80 " 70.26 " 402.6 " 231.1 " 204.8 " 149.6 " 20.56 " 9
10 9.794" 6.549" 8.573" 7.710" 10.95 " 17.43 " 62.56 " 364.3 " 207.9 " 239.8 " 161.6 " 19.85 " 10
11 9.457" 5.843" 6.732" 9.659" 10.72 " 17.34 " 58.15 " 315.1 " 187.9 " 217.6 " 137.1 " 18.10 " 11
12 6.925" 4.582" 6.403" 9.943" 10.45 " 15.04 " 56.99 " 274.2 " 173.0 " 188.5 " 110.2 " 17.28 " 12
13 5.997" 4.779" 7.278" 10.27 " 10.97 " 14.36 " 56.20 " 247.3 " 159.0 " 170.5 " 92.54 " 18.65 " 13
14 5.258" 4.896" 5.112" 10.28 " 10.58 " 14.46 " 59.52 " 369.4 " 143.7 " 156.7 " 81.29 " 21.04 " 14
15 5.075" 5.733" 5.845" 9.705" 10.28 " 15.03 " 62.03 " 668.3 " 134.9 " 148.3 " 71.96 " 22.36 " 15
16 4.414" 6.163" 5.446" 7.955" 10.33 " 14.21 " 99.95 " 872.4 " 147.4 " 135.0 " 64.06 " 21.27 " 16
17 4.367" 5.387" 6.227" 7.579" 10.48 " 13.81 " 149.9 " 872.3 " 261.5 " 122.4 " 59.56 " 18.35 " 17
18 5.101" 5.157" 6.618" 7.812" 10.71 " 14.14 " 133.3 " 665.3 " 528.0 " 115.2 " 56.02 " 19.15 " 18
19 4.829" 5.040" 6.694" 7.467" 11.07 " 14.45 " 111.3 " 508.7 " 973.4 " 109.9 " 53.75 " 18.97 " 19
20 4.496" 4.295" 5.678" 7.345" 15.06 " 15.20 " 99.02 " 416.2 " 973.8 " 105.9 " 52.91 " 18.47 " 20
21 4.790" 4.077" 5.409" 7.762" 31.18 " 14.62 " 118.4 " 404.1 " 734.2 " 99.00 " 50.93 " 16.05 " 21
22 4.444" 5.254" 5.504" 8.517" 21.58 " 14.36 " 147.1 "5242 & 994.8 " 90.36 " 47.94 " 14.61 " 22
23 4.263" 4.798" 5.679" 8.235" 17.72 " 14.78 " 146.6 "7323 & 978.8 " 84.92 " 44.72 " 14.69 " 23
24 7.154" 4.390" 5.798" 9.095" 16.28 " 18.50 " 137.2 "3234 " 692.6 " 84.62 " 38.05 " 13.40 " 24
25 9.450" 4.032" 6.055" 9.738" 14.79 " 43.70 " 129.8 "2189 " 527.4 " 92.34 " 28.31 " 11.47 " 25
26 12.90 " 4.577" 5.681" 10.45 " 13.75 " 44.70 " 167.8 "1424 " 469.2 " 91.20 " 25.28 " 14.52 " 26
27 10.88 " 4.269" 5.283" 12.77 " 13.24 " 45.81 " 165.7 "1027 " 473.1 " 89.96 " 28.23 " 22.74 " 27
28 9.736" 4.183" 4.854" 12.90 " 12.94 " 119.7 " 336.2 " 809.5 " 452.1 " 91.39 " 28.40 " 20.88 " 28
29 11.87 " 5.225" 13.89 " 13.10 " 142.7 " 751.0 " 662.9 " 410.5 " 106.7 " 28.60 " 18.29 " 29
30 11.24 " 5.078" 13.17 " 20.09 " 163.5 " 883.5 " 561.2 " 354.1 " 89.91 " 27.17 " 15.83 " 30
31 10.61 " 5.207" 31.40 " 1337 " 486.8 " 77.19 " 13.90 " 31
Mean 7.045" 6.033" 5.449" 8.865" 14.51 " 32.63 " 212.9 "1267 & 441.3 " 166.6 " 65.06 " 18.94 "
Median 6.222" 5.321" 5.446" 7.962" 13.24 " 17.23 " 131.6 " 668.3 & 418.8 " 135.0 " 55.67 " 19.15 "
Maximum 12.90 " 10.46 " 8.573" 13.89 " 31.40 " 163.5 "1337 "7323 & 994.8 " 330.7 " 161.6 " 25.57 "
Minimum 4.094" 4.032" 3.551" 5.329" 10.28 " 13.81 " 56.20 " 247.3 & 134.9 " 77.19 " 25.28 " 11.47 "
Total 218.4 " 168.9 " 168.9 " 266.0 " 449.7 " 978.8 " 6599 "39270 &13239 " 5163 " 1952 " 587.2 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 189.2 & " ... Relative Uncertainty +/-10%
Ann. Median 19.85 & & ... Relative Uncertainty +/-30%
Annual Total 69061 &
Maximum Minimum
Daily 7323 & 3.551&
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 12.65 " 7.696" 7.162" 8.061" 13.64 " 23.12 " 84.07 " 54.93 " 133.8 " 416.3 " 36.37 " 17.78 " 1
2 12.97 " 8.239" 6.630" 9.094" 13.21 " 20.22 " 79.32 " 63.34 " 140.5 " 332.5 " 35.07 " 20.64 " 2
3 13.46 " 10.11 " 7.100" 10.37 " 13.42 " 17.34 " 76.51 " 78.78 " 147.4 " 285.1 " 33.98 " 20.19 " 3
4 13.88 " 10.51 " 6.878" 11.37 " 13.74 " 16.60 " 73.74 " 108.3 " 482.3 " 286.9 " 35.40 " 19.59 " 4
5 12.18 " 12.64 " 6.753" 13.08 " 17.32 " 15.94 " 69.72 " 125.0 " 936.0 " 246.7 " 40.22 " 18.99 " 5
6 11.31 " 11.47 " 7.847" 12.99 " 20.21 " 15.58 " 67.34 " 115.7 " 836.9 " 212.9 " 44.13 " 18.14 " 6
7 12.27 " 11.68 " 7.618" 12.86 " 18.75 " 16.27 " 80.90 " 111.9 " 591.8 " 185.2 " 48.20 " 16.12 " 7
8 10.91 " 10.98 " 8.255" 12.66 " 19.76 " 17.17 " 100.8 " 120.1 " 439.8 " 164.4 " 47.95 " 17.17 " 8
9 12.17 " 10.75 " 9.716" 12.79 " 19.88 " 19.22 " 103.6 " 118.2 " 351.6 " 147.0 " 43.60 " 16.95 " 9
10 13.11 " 9.817" 9.139" 12.03 " 17.36 " 18.47 " 95.44 " 106.8 " 289.7 " 131.6 " 40.16 " 15.76 " 10
11 12.07 " 8.912" 7.610" 9.965" 17.19 " 28.42 " 107.5 " 95.95 " 250.3 " 118.1 " 38.31 " 14.73 " 11
12 9.805" 8.112" 6.810" 9.782" 16.35 " 43.19 " 124.6 " 103.4 " 222.2 " 105.3 " 36.80 " 28.75 " 12
13 9.178" 7.726" 7.500" 8.408" 15.92 " 46.28 " 123.1 " 298.5 " 197.2 " 96.10 " 35.07 " 137.1 " 13
14 8.503" 10.24 " 8.336" 8.456" 15.94 " 50.26 " 108.6 " 426.5 " 176.8 " 95.38 " 32.68 " 258.3 " 14
15 7.696" 10.48 " 9.192" 9.119" 15.39 " 70.28 " 100.3 " 422.1 " 162.7 " 108.9 " 30.75 " 173.4 " 15
16 7.866" 8.819" 8.245" 8.486" 15.05 " 69.45 " 97.59 " 395.1 " 143.6 " 117.0 " 27.74 " 123.3 " 16
17 8.418" 10.24 " 7.357" 9.073" 16.47 " 64.41 " 102.1 " 322.3 " 127.3 " 108.2 " 26.97 " 92.97 " 17
18 9.239" 10.50 " 6.896" 10.08 " 17.74 " 58.79 " 103.8 " 267.7 " 121.6 " 98.39 " 26.06 " 73.11 " 18
19 8.423" 9.322" 6.805" 10.42 " 17.33 " 72.14 " 97.68 " 227.9 " 134.7 " 90.12 " 24.58 " 59.18 " 19
20 7.533" 8.799" 7.361" 10.15 " 17.58 " 121.7 " 92.27 " 197.3 " 152.7 " 83.52 " 23.77 " 50.51 " 20
21 7.014" 9.357" 7.396" 10.25 " 17.29 " 173.3 " 86.47 " 194.1 " 147.1 " 77.17 " 23.09 " 43.47 " 21
22 6.218" 9.193" 8.799" 9.976" 16.24 " 162.4 " 81.13 " 267.4 " 220.8 " 71.73 " 20.69 " 37.24 " 22
23 5.452" 8.026" 9.100" 9.944" 15.28 " 141.7 " 76.48 " 295.6 " 367.6 " 66.57 " 18.25 " 32.60 " 23
24 7.836" 7.755" 8.314" 10.62 " 15.42 " 118.9 " 73.31 " 256.9 " 315.2 " 63.47 " 15.71 " 27.45 " 24
25 9.672" 7.370" 8.072" 10.56 " 14.70 " 104.7 " 70.83 " 222.5 " 263.9 " 61.00 " 12.78 " 21.96 " 25
26 7.868" 7.202" 7.652" 10.01 " 14.12 " 96.67 " 67.82 " 198.0 " 282.4 " 57.17 " 11.31 " 20.66 " 26
27 6.579" 7.308" 7.739" 9.678" 13.63 " 94.81 " 64.91 " 178.2 " 560.0 " 50.53 " 12.27 " 20.18 " 27
28 6.698" 7.424" 7.746" 10.76 " 13.42 " 97.96 " 62.14 " 163.4 " 889.8 " 45.66 " 12.57 " 18.41 " 28
29 5.974" 6.970" 9.388" 12.57 " 13.98 " 96.74 " 59.76 " 150.7 " 757.4 " 42.01 " 15.30 " 16.48 " 29
30 5.270" 8.541" 13.28 " 16.52 " 90.35 " 57.26 " 139.8 " 541.6 " 39.54 " 19.55 " 15.55 " 30
31 6.344" 8.293" 18.14 " 55.77 " 133.9 " 37.19 " 13.57 " 31
Mean 9.309" 9.230" 7.879" 10.56 " 16.16 " 66.08 " 85.32 " 192.3 " 346.2 " 130.4 " 28.98 " 47.11 "
Median 8.503" 9.193" 7.739" 10.20 " 16.24 " 61.60 " 81.13 " 163.4 " 257.1 " 98.39 " 29.24 " 20.64 "
Maximum 13.88 " 12.64 " 9.716" 13.28 " 20.21 " 173.3 " 124.6 " 426.5 " 936.0 " 416.3 " 48.20 " 258.3 "
Minimum 5.270" 6.970" 6.630" 8.061" 13.21 " 15.58 " 55.77 " 54.93 " 121.6 " 37.19 " 11.31 " 13.57 "
Total 288.6 " 267.7 " 244.3 " 316.9 " 501.0 " 1982 " 2645 " 5960 "10385 " 4041 " 869.3 " 1460 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 79.13 " " ... Relative Uncertainty +/-10%
Ann. Median 20.21 "
Annual Total 28962 "
Maximum Minimum
Daily 936.0 " 5.270"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 12.79 " 5.949" 5.283" 13.08 " 12.82 " 36.80 " 50.36 " 483.2 " 832.4 " 904.2 " 86.19 " 37.04 " 1
2 15.05 " 5.526" 6.792" 12.90 " 17.92 " 29.09 " 49.92 " 413.8 " 723.8 " 776.1 " 78.48 " 34.49 " 2
3 14.60 " 5.571" 6.940" 11.79 " 25.39 " 27.52 " 48.70 " 362.6 " 737.8 " 665.6 " 71.58 " 32.55 " 3
4 12.33 " 5.496" 7.540" 9.812" 18.85 " 27.01 " 47.06 " 320.3 "1704 " 558.8 " 67.32 " 31.02 " 4
5 12.24 " 6.155" 8.549" 7.980" 17.35 " 26.90 " 45.57 " 370.4 "1550 " 498.9 " 64.49 " 30.21 " 5
6 10.83 " 5.995" 7.833" 8.265" 16.54 " 25.71 " 43.44 "1362 "1002 " 493.8 " 61.86 " 29.51 " 6
7 13.16 " 6.030" 7.375" 7.379" 15.92 " 24.82 " 41.86 "3789 & 739.7 " 448.5 " 59.25 " 27.97 " 7
8 13.44 " 6.120" 7.423" 7.083" 19.84 " 24.40 " 40.67 "8628 & 599.0 " 402.0 " 58.33 " 26.35 " 8
9 11.87 " 5.843" 7.364" 8.498" 32.78 " 25.31 " 41.36 "4681 & 514.4 " 372.2 " 56.33 " 24.02 " 9
10 9.707" 5.499" 7.276" 9.467" 33.70 " 25.98 " 49.64 "2371 " 451.6 " 347.8 " 51.99 " 23.37 " 10
11 9.055" 5.097" 8.369" 9.503" 28.37 " 26.14 " 60.12 "1450 " 563.8 " 319.7 " 49.66 " 21.35 " 11
12 8.284" 5.387" 11.45 " 10.30 " 23.31 " 26.51 " 70.38 "1084 "1030 " 299.2 " 47.31 " 19.60 " 12
13 7.498" 5.635" 11.65 " 11.71 " 21.07 " 26.01 " 68.95 " 871.7 "1148 " 275.9 " 44.13 " 18.77 " 13
14 7.569" 6.026" 11.94 " 12.40 " 20.21 " 26.79 " 65.86 " 807.0 "1193 " 248.7 " 41.74 " 17.11 " 14
15 9.377" 6.738" 13.73 " 12.83 " 19.66 " 27.46 " 70.69 " 717.7 "1485 " 226.9 " 39.15 " 16.73 " 15
16 10.29 " 7.048" 14.75 " 13.07 " 19.57 " 26.64 " 118.9 " 739.9 "1566 " 212.0 " 37.65 " 17.79 " 16
17 10.55 " 6.761" 13.95 " 13.33 " 21.35 " 26.37 " 290.0 " 713.3 "1766 " 202.9 " 34.78 " 18.20 " 17
18 9.523" 6.140" 14.54 " 13.38 " 24.85 " 26.46 " 356.7 " 612.0 "1708 " 192.4 " 33.11 " 17.88 " 18
19 8.943" 7.361" 14.37 " 13.60 " 22.87 " 25.65 " 290.1 " 520.4 "1506 " 191.8 " 32.05 " 16.28 " 19
20 8.666" 7.014" 14.30 " 13.57 " 23.91 " 24.94 " 234.4 " 453.2 "1498 " 247.4 " 29.27 " 15.57 " 20
21 8.703" 6.584" 12.44 " 12.65 " 28.82 " 24.80 " 192.5 " 406.7 "1763 " 284.8 " 25.43 " 14.92 " 21
22 7.762" 6.461" 11.77 " 12.50 " 31.42 " 24.50 " 166.2 " 373.8 "2358 " 256.7 " 24.69 " 14.35 " 22
23 7.372" 6.163" 13.25 " 12.13 " 29.39 " 25.40 " 153.2 " 341.6 "4807 & 217.1 " 24.68 " 13.79 " 23
24 7.845" 6.101" 13.54 " 12.10 " 29.00 " 32.07 " 511.3 " 314.7 "6882 & 185.0 " 24.15 " 14.28 " 24
25 7.380" 7.373" 14.29 " 12.11 " 29.21 " 51.68 " 867.4 " 294.7 "4265 " 162.3 " 24.05 " 14.32 " 25
26 7.096" 8.704" 14.15 " 12.10 " 28.85 " 66.59 " 798.1 " 300.4 "2580 " 146.7 " 29.15 " 14.59 " 26
27 6.688" 6.574" 13.64 " 11.94 " 27.76 " 66.85 "1258 " 331.6 "1842 " 134.3 " 36.45 " 15.68 " 27
28 6.453" 5.567" 14.02 " 11.56 " 26.42 " 64.23 "1317 " 423.3 "1413 " 121.2 " 34.30 " 15.08 " 28
29 7.491" 13.09 " 11.30 " 25.34 " 58.44 " 876.5 " 429.7 "1103 " 112.5 " 33.15 " 13.97 " 29
30 7.544" 13.45 " 11.28 " 28.24 " 52.91 " 649.4 " 449.2 " 980.5 " 104.2 " 34.49 " 15.18 " 30
31 6.780" 13.53 " 29.43 " 556.8 " 608.2 " 94.74 " 15.42 " 31
Mean 9.577" 6.247" 11.24 " 11.32 " 24.20 " 33.47 " 304.2 "1130 &1677 & 313.0 " 44.51 " 20.56 "
Median 8.943" 6.110" 12.44 " 12.02 " 24.85 " 26.58 " 118.9 " 483.2 &1449 & 248.7 " 38.40 " 17.79 "
Maximum 15.05 " 8.704" 14.75 " 13.60 " 33.70 " 66.85 "1317 "8628 &6882 & 904.2 " 86.19 " 37.04 "
Minimum 6.453" 5.097" 5.283" 7.083" 12.82 " 24.40 " 40.67 " 294.7 & 451.6 & 94.74 " 24.05 " 13.79 "
Total 296.9 " 174.9 " 348.6 " 339.6 " 750.1 " 1004 " 9432 "35024 &50313 & 9704 " 1335 " 637.4 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 299.6 & " ... Relative Uncertainty +/-10%
Ann. Median 26.51 & & ... Relative Uncertainty +/-30%
Annual Total 109360 &
Maximum Minimum
Daily 8628 & 5.097&
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 13.85 " 9.481" 8.207" 12.55 " 12.46 " 141.7 " 192.7 " 511.2 "2582 " 351.9 " 56.64 " 28.50 " 1
2 13.66 " 8.431" 8.234" 12.38 " 13.48 " 130.0 " 276.3 " 445.9 "1619 " 307.1 " 54.84 " 27.12 " 2
3 14.27 " 8.216" 8.991" 11.74 " 13.37 " 119.8 " 788.1 " 393.4 "1184 " 267.6 " 53.48 " 26.59 " 3
4 13.42 " 8.870" 8.381" 11.44 " 12.73 " 111.0 " 818.1 " 351.8 " 919.0 " 239.2 " 51.70 " 24.59 " 4
5 12.51 " 8.484" 7.528" 11.96 " 13.33 " 100.8 " 619.3 " 320.4 " 757.2 " 230.8 " 47.66 " 25.30 " 5
6 13.81 " 9.211" 7.532" 12.12 " 13.74 " 92.63 " 756.1 " 294.4 " 666.6 " 268.3 " 37.44 " 25.19 " 6
7 14.16 " 8.645" 8.433" 12.35 " 14.98 " 85.21 "1922 " 279.0 " 776.1 " 283.9 " 40.75 " 25.40 " 7
8 14.56 " 8.395" 8.381" 11.32 " 18.99 " 79.52 "3544 " 289.1 "1085 " 254.7 " 47.14 " 24.43 " 8
9 13.49 " 7.442" 7.986" 10.42 " 29.05 " 79.26 "2571 " 283.1 "1792 " 230.4 " 43.68 " 23.39 " 9
10 13.35 " 7.638" 7.937" 10.45 " 27.32 " 86.14 "1371 " 255.6 "1809 " 208.7 " 39.61 " 21.29 " 10
11 12.40 " 8.519" 8.316" 9.930" 23.61 " 113.2 " 938.7 " 230.6 "1293 " 187.6 " 37.95 " 21.11 " 11
12 10.62 " 8.050" 7.278" 9.142" 21.14 " 138.0 " 717.2 " 208.7 " 969.2 " 168.2 " 41.23 " 21.55 " 12
13 9.915" 9.390" 7.443" 10.03 " 20.47 " 129.7 " 567.5 " 189.6 " 790.5 " 152.8 " 40.85 " 20.42 " 13
14 10.97 " 8.142" 8.805" 9.794" 19.70 " 114.9 " 571.5 " 173.9 " 645.2 " 138.1 " 39.36 " 17.53 " 14
15 12.07 " 7.659" 8.497" 10.58 " 19.09 " 102.7 " 866.7 " 161.1 " 548.0 " 126.5 " 37.99 " 17.25 " 15
16 12.40 " 7.311" 9.399" 9.858" 18.71 " 93.92 " 855.0 " 152.0 " 478.7 " 116.7 " 37.36 " 18.54 " 16
17 12.92 " 7.202" 9.906" 10.07 " 17.95 " 96.09 " 669.5 " 145.3 " 418.9 " 107.3 " 36.52 " 18.43 " 17
18 11.82 " 7.212" 10.15 " 10.47 " 16.75 " 219.7 " 528.9 " 277.2 " 376.7 " 98.24 " 36.31 " 18.02 " 18
19 10.56 " 6.935" 9.495" 9.609" 21.23 " 336.6 " 456.2 " 757.4 " 339.9 " 91.34 " 35.48 " 16.88 " 19
20 10.30 " 7.705" 8.408" 8.685" 48.65 " 317.4 " 413.6 " 854.3 " 314.1 " 88.16 " 34.56 " 16.12 " 20
21 10.64 " 8.549" 8.108" 8.512" 92.98 " 334.1 " 426.4 " 724.6 " 311.1 " 87.02 " 33.35 " 15.62 " 21
22 11.59 " 8.484" 7.563" 10.39 " 158.9 " 579.7 " 547.8 " 854.9 " 400.5 " 88.31 " 32.36 " 15.24 " 22
23 12.06 " 7.964" 7.755" 10.82 " 230.1 " 614.0 " 723.0 " 795.2 " 424.2 " 86.88 " 31.84 " 16.51 " 23
24 11.42 " 7.956" 7.234" 10.96 " 234.1 " 479.7 " 695.8 " 634.7 " 364.2 " 82.65 " 32.03 " 15.32 " 24
25 12.90 " 6.980" 8.406" 11.22 " 406.1 " 381.5 " 591.6 " 524.8 " 325.1 " 79.00 " 32.36 " 14.05 " 25
26 10.63 " 6.195" 8.329" 11.46 " 404.0 " 320.6 " 654.1 " 553.4 " 303.3 " 75.62 " 28.80 " 14.16 " 26
27 8.924" 6.154" 9.282" 11.50 " 301.2 " 282.2 "1113 " 719.2 " 312.8 " 73.18 " 28.39 " 13.97 " 27
28 8.809" 5.999" 9.803" 12.57 " 248.4 " 256.7 "1160 " 622.3 " 407.2 " 70.21 " 29.09 " 12.27 " 28
29 10.77 " 10.52 " 12.13 " 218.7 " 229.4 " 891.0 "5391 & 433.0 " 66.86 " 29.14 " 11.73 " 29
30 9.392" 10.62 " 12.08 " 188.6 " 208.1 " 714.3 "9416 & 403.5 " 62.83 " 29.01 " 11.79 " 30
31 9.351" 10.61 " 160.6 " 605.1 "4586 " 59.74 " 11.56 " 31
Mean 11.86 " 7.901" 8.630" 10.89 " 98.08 " 212.5 " 889.2 "1013 & 768.3 " 153.2 " 38.56 " 19.03 "
Median 12.06 " 8.007" 8.381" 10.89 " 21.23 " 134.0 " 714.3 " 393.4 & 513.4 " 116.7 " 37.40 " 18.02 "
Maximum 14.56 " 9.481" 10.62 " 12.57 " 406.1 " 614.0 "3544 "9416 &2582 " 351.9 " 56.64 " 28.50 "
Minimum 8.809" 5.999" 7.234" 8.512" 12.46 " 79.26 " 192.7 " 145.3 & 303.3 " 59.74 " 28.39 " 11.56 "
Total 367.5 " 221.2 " 267.5 " 326.6 " 3040 " 6374 "27564 "31396 &23049 " 4750 " 1157 " 589.9 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 271.5 & " ... Relative Uncertainty +/-10%
Ann. Median 36.31 & & ... Relative Uncertainty +/-30%
Annual Total 99103 &
Maximum Minimum
Daily 9416 & 5.999&
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 12.35 " 8.707" 9.659" 13.13 " 15.84 " 20.23 " 27.59 " 220.6 " 165.0 " 65.15 " 24.72 " 9.643" 1
2 12.57 " 8.614" 9.429" 13.28 " 15.46 " 21.63 " 27.04 " 228.7 " 171.5 " 61.67 " 26.44 " 10.03 " 2
3 12.60 " 10.20 " 10.13 " 13.18 " 15.76 " 23.79 " 27.28 " 176.8 " 157.1 " 57.76 " 27.18 " 10.64 " 3
4 11.60 " 11.30 " 9.735" 14.91 " 16.87 " 24.12 " 27.20 " 141.5 " 144.1 " 54.06 " 27.07 " 10.45 " 4
5 10.79 " 9.281" 9.390" 14.88 " 19.41 " 23.78 " 26.93 " 119.5 " 177.6 " 51.87 " 25.74 " 10.13 " 5
6 11.03 " 8.314" 10.33 " 14.07 " 27.67 " 23.85 " 26.41 " 103.8 " 235.6 " 50.25 " 24.68 " 10.96 " 6
7 10.01 " 8.124" 10.34 " 14.48 " 24.36 " 25.40 " 26.67 " 92.71 " 209.8 " 43.58 " 24.16 " 11.78 " 7
8 9.288" 8.704" 8.882" 16.77 " 20.47 " 25.94 " 26.69 " 89.16 " 185.2 " 32.58 " 22.76 " 11.10 " 8
9 9.428" 8.652" 8.992" 18.28 " 18.72 " 25.29 " 26.04 " 94.39 " 156.2 " 40.36 " 22.44 " 10.90 " 9
10 9.642" 10.47 " 9.800" 31.20 " 17.77 " 24.54 " 26.10 " 109.6 " 140.2 " 40.47 " 21.20 " 9.868" 10
11 9.114" 10.56 " 9.050" 40.69 " 17.45 " 24.02 " 25.68 " 123.9 " 175.2 " 38.80 " 18.45 " 9.687" 11
12 9.109" 9.255" 8.593" 31.81 " 17.36 " 23.63 " 25.26 " 126.5 " 319.6 " 36.87 " 16.88 " 9.885" 12
13 9.479" 8.892" 8.094" 30.14 " 20.10 " 22.89 " 25.13 " 119.3 " 448.2 " 35.22 " 15.86 " 9.464" 13
14 9.136" 9.315" 8.937" 28.21 " 19.71 " 22.52 " 24.71 " 110.4 " 427.1 " 34.38 " 15.09 " 8.726" 14
15 9.384" 9.117" 10.83 " 25.55 " 17.72 " 22.37 " 24.43 " 103.0 " 351.9 " 32.64 " 14.46 " 9.270" 15
16 8.328" 8.619" 12.67 " 23.60 " 18.63 " 22.42 " 24.12 " 98.31 " 285.6 " 31.54 " 13.64 " 10.16 " 16
17 8.253" 8.367" 12.64 " 22.04 " 23.64 " 22.80 " 24.02 " 93.47 " 247.9 " 30.62 " 13.35 " 10.42 " 17
18 7.978" 8.630" 13.87 " 20.79 " 35.09 " 24.44 " 23.39 " 128.9 " 216.1 " 29.84 " 13.67 " 9.226" 18
19 8.460" 8.874" 14.21 " 19.75 " 26.95 " 27.15 " 27.05 " 180.5 " 185.2 " 29.63 " 14.88 " 8.927" 19
20 12.11 " 8.850" 14.57 " 19.01 " 29.45 " 29.09 " 45.64 " 280.7 " 158.0 " 29.51 " 14.19 " 7.687" 20
21 13.05 " 9.609" 14.88 " 18.62 " 31.36 " 31.10 " 58.45 " 369.8 " 141.7 " 29.58 " 13.67 " 7.085" 21
22 11.75 " 9.187" 15.51 " 18.30 " 30.29 " 33.82 " 78.12 " 385.0 " 128.9 " 28.95 " 12.48 " 7.809" 22
23 11.35 " 8.484" 15.22 " 17.78 " 28.20 " 34.72 " 82.12 " 333.7 " 117.0 " 28.02 " 11.24 " 7.444" 23
24 10.57 " 8.127" 15.74 " 17.14 " 26.52 " 35.11 " 73.37 " 268.6 " 105.9 " 27.42 " 12.60 " 6.668" 24
25 12.50 " 8.897" 14.26 " 16.50 " 25.09 " 37.33 " 67.19 " 218.5 " 97.36 " 26.18 " 11.53 " 6.549" 25
26 15.90 " 10.55 " 12.94 " 16.16 " 24.03 " 36.86 " 60.62 " 189.0 " 90.25 " 25.60 " 11.85 " 7.194" 26
27 16.34 " 10.37 " 13.09 " 16.09 " 22.98 " 33.14 " 53.93 " 168.2 " 83.26 " 24.50 " 10.96 " 8.787" 27
28 14.12 " 10.10 " 15.20 " 16.01 " 22.56 " 31.06 " 49.53 " 149.4 " 77.05 " 23.01 " 10.52 " 7.948" 28
29 11.64 " 13.80 " 15.92 " 21.76 " 28.97 " 47.21 " 136.4 " 72.06 " 22.77 " 9.859" 6.690" 29
30 10.19 " 13.04 " 15.92 " 21.29 " 27.94 " 47.08 " 135.9 " 68.36 " 22.37 " 9.374" 6.568" 30
31 9.016" 14.23 " 20.80 " 128.2 " 144.1 " 23.71 " 7.264" 31
Mean 10.87 " 9.220" 11.87 " 19.81 " 22.37 " 27.00 " 41.39 " 169.0 " 184.6 " 35.77 " 17.03 " 8.999"
Median 10.57 " 8.895" 12.64 " 17.46 " 21.29 " 24.91 " 27.05 " 136.4 " 161.5 " 31.54 " 14.67 " 9.270"
Maximum 16.34 " 11.30 " 15.74 " 40.69 " 35.09 " 37.33 " 128.2 " 385.0 " 448.2 " 65.15 " 27.18 " 11.78 "
Minimum 7.978" 8.124" 8.094" 13.13 " 15.46 " 20.23 " 23.39 " 89.16 " 68.36 " 22.37 " 9.374" 6.549"
Total 337.1 " 258.2 " 368.1 " 594.2 " 693.3 " 809.9 "1283 "5240 "5539 "1109 " 510.9 " 279.0 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 46.64 " " ... Relative Uncertainty +/-10%
Ann. Median 21.76 "
Annual Total 17022 "
Maximum Minimum
Daily 448.2 " 6.549"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 6.795" 14.93 " 11.62 " 19.99 " 22.01 " 109.4 " 171.1 " 432.5 "1083 " 320.5 " 112.3 " 22.68 " 1
2 7.510" 15.86 " 11.72 " 18.53 " 20.97 " 96.91 " 150.8 " 413.8 " 982.5 " 352.5 " 107.0 " 20.57 " 2
3 9.409" 15.29 " 12.21 " 17.89 " 20.55 " 87.33 " 135.2 " 358.2 " 818.9 " 382.2 " 101.0 " 20.30 " 3
4 7.595" 15.23 " 11.66 " 16.80 " 20.37 " 84.61 " 124.8 " 386.5 " 699.1 " 370.4 " 95.67 " 20.55 " 4
5 7.382" 14.28 " 12.37 " 16.68 " 20.82 " 85.17 " 124.3 " 572.1 " 590.3 " 347.6 " 88.98 " 19.98 " 5
6 6.785" 11.60 " 11.82 " 16.35 " 28.93 " 87.64 " 119.0 " 590.1 " 507.5 " 326.9 " 82.15 " 19.27 " 6
7 5.919" 9.869" 11.37 " 16.01 " 28.50 " 94.03 " 118.2 " 724.5 " 535.3 " 452.1 " 76.45 " 20.72 " 7
8 5.548" 9.053" 11.92 " 15.97 " 27.47 " 102.2 " 216.4 "1368 " 780.8 " 863.2 " 71.47 " 21.46 " 8
9 5.578" 10.10 " 11.23 " 15.88 " 23.12 " 121.8 " 358.3 "1894 " 819.0 "1277 " 66.98 " 21.48 " 9
10 5.678" 9.881" 9.743" 16.35 " 21.98 " 142.0 " 438.2 "1345 " 659.3 "1172 " 64.45 " 19.92 " 10
11 5.913" 11.21 " 9.699" 16.64 " 20.80 " 189.0 " 607.5 " 953.7 " 575.2 " 841.1 " 62.74 " 19.35 " 11
12 7.228" 11.03 " 9.018" 20.39 " 19.46 " 209.3 " 624.8 " 951.3 " 507.6 " 628.1 " 59.21 " 18.98 " 12
13 6.879" 9.938" 9.019" 27.68 " 19.19 " 241.2 " 467.2 " 897.1 " 445.4 " 498.1 " 57.22 " 18.55 " 13
14 6.630" 8.749" 10.11 " 24.95 " 19.50 " 276.9 " 369.3 " 732.9 " 397.9 " 426.3 " 55.92 " 17.62 " 14
15 7.255" 8.038" 10.76 " 23.65 " 19.59 " 276.1 " 335.0 " 606.7 " 358.8 " 395.5 " 48.82 " 17.17 " 15
16 8.278" 9.119" 10.59 " 22.38 " 19.37 " 235.9 " 703.1 " 600.6 " 343.1 " 388.4 " 51.53 " 16.57 " 16
17 7.392" 9.625" 10.84 " 23.15 " 18.35 " 201.2 "1704 " 696.8 " 341.0 " 352.2 " 48.51 " 16.21 " 17
18 6.989" 9.890" 9.648" 25.37 " 23.12 " 175.0 "2353 "1172 " 322.9 " 314.3 " 42.32 " 14.78 " 18
19 9.950" 9.612" 9.075" 23.57 " 20.22 " 156.4 "2042 "1291 " 424.6 " 288.7 " 41.01 " 14.12 " 19
20 21.82 " 8.692" 8.420" 21.88 " 18.72 " 151.4 "1252 "1022 " 496.1 " 267.7 " 39.71 " 15.13 " 20
21 50.74 " 9.012" 8.935" 21.01 " 25.95 " 157.2 " 992.4 " 901.8 " 434.1 " 250.4 " 37.73 " 14.36 " 21
22 37.14 " 8.869" 11.05 " 20.56 " 48.08 " 157.1 "1108 " 836.9 " 394.4 " 225.4 " 33.95 " 14.14 " 22
23 30.75 " 10.39 " 12.23 " 20.34 " 48.43 " 148.8 " 965.3 " 740.3 " 415.0 " 202.2 " 26.46 " 14.55 " 23
24 27.81 " 11.40 " 13.51 " 20.24 " 89.49 " 139.6 " 759.7 " 618.5 " 406.7 " 184.5 " 28.87 " 13.41 " 24
25 23.70 " 11.94 " 13.85 " 21.03 " 122.5 " 133.3 " 608.0 " 523.9 " 374.4 " 169.3 " 29.23 " 11.50 " 25
26 21.20 " 12.02 " 17.29 " 22.79 " 164.8 " 131.8 " 508.0 " 468.3 " 348.2 " 155.3 " 29.05 " 11.74 " 26
27 19.71 " 11.53 " 23.94 " 22.48 " 148.2 " 130.5 " 446.0 " 941.0 " 323.5 " 141.8 " 27.64 " 14.84 " 27
28 17.25 " 10.63 " 28.38 " 21.95 " 142.4 " 131.9 " 399.5 "1808 " 345.5 " 132.4 " 26.27 " 15.07 " 28
29 15.64 " 10.55 " 23.27 " 21.37 " 140.5 " 161.3 " 362.3 "1642 " 368.7 " 125.0 " 24.83 " 14.81 " 29
30 14.75 " 23.08 " 21.71 " 145.3 " 185.3 " 350.3 "1144 " 336.2 " 120.4 " 22.86 " 13.68 " 30
31 14.11 " 22.01 " 127.5 " 374.7 " 967.7 " 117.5 " 13.65 " 31
Mean 13.85 " 10.98 " 13.24 " 20.45 " 52.78 " 153.4 " 622.2 " 890.3 " 514.5 " 390.0 " 55.35 " 17.00 "
Median 7.595" 10.39 " 11.62 " 20.78 " 23.12 " 145.4 " 438.2 " 836.9 " 429.3 " 326.9 " 50.18 " 16.57 "
Maximum 50.74 " 15.86 " 28.38 " 27.68 " 164.8 " 276.9 "2353 "1894 "1083 "1277 " 112.3 " 22.68 "
Minimum 5.548" 8.038" 8.420" 15.88 " 18.35 " 84.61 " 118.2 " 358.2 " 322.9 " 117.5 " 22.86 " 11.50 "
Total 429.3 " 318.4 " 410.4 " 613.6 " 1636 " 4601 "19288 "27600 "15435 "12089 " 1660 " 527.1 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 231.2 " " ... Relative Uncertainty +/-10%
Ann. Median 40.36 "
Annual Total 84608 "
Maximum Minimum
Daily 2353 " 5.548"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 12.45 " 7.984" 12.37 " 13.91 " 11.38 " 22.83 " 28.00 " 586.2 " 242.5 " 188.0 " 63.41 " 14.44 " 1
2 12.13 " 9.321" 12.54 " 12.52 " 10.53 " 22.82 " 29.51 " 534.1 " 233.2 " 170.4 " 58.11 " 14.74 " 2
3 12.62 " 10.93 " 12.48 " 11.87 " 10.86 " 23.93 " 28.36 " 426.0 " 223.0 " 153.7 " 53.89 " 13.49 " 3
4 11.39 " 10.68 " 12.21 " 11.68 " 11.51 " 21.59 " 28.70 " 385.2 " 208.1 " 137.7 " 50.12 " 13.62 " 4
5 10.56 " 9.244" 11.15 " 11.68 " 12.65 " 20.61 " 31.10 " 345.2 " 187.7 " 124.2 " 44.76 " 16.01 " 5
6 11.63 " 8.290" 12.25 " 11.52 " 13.45 " 19.99 " 33.96 " 298.5 " 174.8 " 115.2 " 42.85 " 17.17 " 6
7 13.44 " 9.632" 11.45 " 11.77 " 13.47 " 19.73 " 39.70 " 265.7 " 162.9 " 109.3 " 40.79 " 16.11 " 7
8 14.01 " 10.27 " 11.23 " 11.98 " 12.88 " 19.58 " 42.78 " 324.9 " 152.7 " 104.9 " 37.82 " 17.05 " 8
9 11.65 " 10.04 " 10.44 " 11.66 " 13.13 " 19.23 " 37.91 "1533 " 144.0 " 102.3 " 33.08 " 16.86 " 9
10 11.61 " 15.58 " 9.677" 11.19 " 13.00 " 16.43 " 37.05 "2200 " 135.4 " 99.14 " 25.14 " 16.01 " 10
11 11.22 " 20.46 " 9.381" 11.17 " 12.88 " 14.34 " 35.38 "1341 " 127.6 " 97.64 " 22.95 " 14.50 " 11
12 9.655" 26.22 " 9.283" 11.76 " 12.76 " 14.40 " 33.34 "1812 " 121.0 " 97.40 " 22.27 " 14.10 " 12
13 12.27 " 24.78 " 9.755" 11.69 " 12.92 " 15.83 " 32.88 "2854 " 114.2 " 94.36 " 24.12 " 12.88 " 13
14 21.90 " 24.46 " 13.24 " 11.79 " 13.36 " 16.34 " 31.68 "3204 " 107.1 " 89.28 " 26.17 " 12.71 " 14
15 12.04 " 22.70 " 12.28 " 11.57 " 15.58 " 17.53 " 31.94 "5441 & 100.1 " 82.38 " 25.67 " 12.70 " 15
16 9.374" 20.35 " 11.81 " 11.62 " 20.70 " 18.15 " 35.52 "3526 " 93.94 " 77.47 " 24.81 " 12.14 " 16
17 9.732" 18.48 " 12.85 " 11.38 " 18.85 " 18.08 " 36.54 "1840 " 88.62 " 83.87 " 24.70 " 12.88 " 17
18 10.03 " 16.68 " 13.80 " 11.79 " 23.71 " 18.32 " 35.71 "1379 " 83.97 " 130.0 " 24.37 " 16.34 " 18
19 9.476" 15.12 " 13.85 " 11.96 " 21.08 " 18.35 " 43.99 "1614 " 79.79 " 163.5 " 22.83 " 20.30 " 19
20 9.629" 13.67 " 13.28 " 11.75 " 19.35 " 19.88 " 62.97 "1642 " 78.41 " 140.4 " 22.01 " 18.85 " 20
21 10.77 " 11.99 " 13.00 " 11.56 " 21.51 " 30.01 " 85.39 "1265 " 94.38 " 116.8 " 20.96 " 18.04 " 21
22 9.886" 11.87 " 19.10 " 12.06 " 33.06 " 32.45 " 132.5 " 963.5 " 298.9 " 102.9 " 20.59 " 18.52 " 22
23 8.948" 13.30 " 22.26 " 12.12 " 30.27 " 35.59 " 196.8 " 769.5 " 519.2 " 92.08 " 21.16 " 17.19 " 23
24 8.960" 13.30 " 18.36 " 11.53 " 29.49 " 27.09 " 294.5 " 633.5 " 478.0 " 88.17 " 20.17 " 15.74 " 24
25 9.008" 12.17 " 16.59 " 12.11 " 28.24 " 25.36 " 274.4 " 534.3 " 410.2 " 87.61 " 19.01 " 14.83 " 25
26 8.993" 12.87 " 16.01 " 12.11 " 27.27 " 24.22 " 241.3 " 457.1 " 371.4 " 82.69 " 17.57 " 14.75 " 26
27 8.321" 11.85 " 16.08 " 11.89 " 26.22 " 23.43 " 279.2 " 398.7 " 312.9 " 78.41 " 17.31 " 14.92 " 27
28 10.07 " 11.13 " 16.11 " 12.21 " 25.41 " 31.81 " 374.4 " 347.6 " 263.4 " 76.26 " 16.57 " 13.40 " 28
29 9.331" 15.34 " 12.30 " 24.85 " 26.23 " 572.9 " 297.3 " 236.8 " 76.75 " 20.44 " 12.02 " 29
30 8.561" 14.94 " 12.08 " 24.03 " 25.71 " 530.6 " 270.9 " 212.6 " 72.96 " 16.71 " 10.99 " 30
31 8.445" 14.38 " 23.40 " 482.2 " 253.9 " 67.77 " 10.03 " 31
Mean 10.91 " 14.41 " 13.47 " 11.87 " 18.96 " 22.00 " 134.9 "1218 & 201.9 " 106.6 " 29.35 " 14.95 "
Median 10.07 " 12.52 " 12.85 " 11.78 " 18.85 " 20.30 " 37.91 " 633.5 & 168.9 " 97.64 " 24.24 " 14.75 "
Maximum 21.90 " 26.22 " 22.26 " 13.91 " 33.06 " 35.59 " 572.9 "5441 & 519.2 " 188.0 " 63.41 " 20.30 "
Minimum 8.321" 7.984" 9.283" 11.17 " 10.53 " 14.34 " 28.00 " 253.9 & 78.41 " 67.77 " 16.57 " 10.03 "
Total 338.1 " 403.4 " 417.5 " 356.2 " 587.8 " 659.9 " 4181 "37743 & 6057 " 3304 " 880.4 " 463.4 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 151.8 & " ... Relative Uncertainty +/-10%
Ann. Median 20.44 & & ... Relative Uncertainty +/-30%
Annual Total 55391 &
Maximum Minimum
Daily 5441 & 7.984&
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 10.31 " 8.687" 9.166" 12.66 " 18.17 " 22.71 " 119.5 " 743.2 "1020 " 124.1 " 48.50 " 22.44 " 1
2 10.93 " 8.709" 9.547" 13.11 " 17.09 " 21.07 " 187.6 " 965.5 " 782.7 " 119.8 " 46.24 " 22.66 " 2
3 10.85 " 9.327" 9.744" 13.15 " 16.59 " 20.14 " 859.3 "1128 " 638.8 " 109.9 " 44.09 " 22.50 " 3
4 10.96 " 8.463" 9.587" 12.89 " 15.81 " 19.76 "1044 "1412 " 574.1 " 102.8 " 41.84 " 22.23 " 4
5 9.914" 7.834" 9.116" 12.59 " 14.37 " 21.81 "1053 "1557 " 586.6 " 107.8 " 40.61 " 19.86 " 5
6 11.02 " 8.472" 9.506" 12.19 " 16.25 " 25.68 " 850.3 "1262 " 564.9 " 121.3 " 39.60 " 21.48 " 6
7 10.64 " 7.904" 9.534" 12.02 " 17.49 " 25.92 " 579.9 " 984.1 " 505.7 " 118.4 " 35.62 " 21.85 " 7
8 9.323" 9.349" 9.882" 11.92 " 16.41 " 23.81 " 431.8 " 874.0 " 482.7 " 109.3 " 28.06 " 21.13 " 8
9 10.50 " 8.093" 10.02 " 12.89 " 15.87 " 24.92 " 345.4 "1764 " 451.9 " 100.9 " 28.93 " 17.79 " 9
10 9.328" 8.301" 10.67 " 12.84 " 16.00 " 64.16 " 289.8 "3942 " 424.3 " 94.28 " 33.45 " 19.42 " 10
11 9.490" 8.734" 11.82 " 12.95 " 15.70 " 117.9 " 256.0 "2645 " 395.5 " 86.86 " 31.98 " 18.59 " 11
12 10.02 " 8.774" 10.17 " 13.79 " 20.57 " 156.0 " 217.4 "1538 " 367.3 " 82.98 " 31.90 " 15.98 " 12
13 10.10 " 9.685" 9.342" 14.52 " 17.10 " 129.2 " 209.5 "1074 " 337.5 " 87.36 " 31.59 " 15.68 " 13
14 9.498" 9.019" 9.454" 14.94 " 15.67 " 103.8 " 235.3 "1072 " 318.5 " 125.1 " 30.11 " 15.89 " 14
15 10.93 " 9.726" 9.912" 14.80 " 15.11 " 84.98 " 391.6 "1252 " 292.0 " 176.8 " 29.04 " 15.07 " 15
16 13.11 " 10.08 " 10.49 " 13.59 " 15.00 " 72.44 " 482.6 "1080 " 260.7 " 169.3 " 27.29 " 15.42 " 16
17 14.46 " 9.328" 11.19 " 13.28 " 14.63 " 64.01 " 487.2 " 894.5 " 242.5 " 148.1 " 25.28 " 16.39 " 17
18 17.02 " 9.003" 12.05 " 13.92 " 14.16 " 63.35 " 456.6 " 754.4 " 232.3 " 126.4 " 26.93 " 16.12 " 18
19 16.99 " 9.944" 11.50 " 14.22 " 13.94 " 73.33 " 410.8 " 643.1 " 219.7 " 110.3 " 28.36 " 15.28 " 19
20 16.76 " 9.963" 10.55 " 14.05 " 13.88 " 101.1 " 374.0 " 567.9 " 204.6 " 104.5 " 26.15 " 13.50 " 20
21 15.26 " 9.100" 9.159" 15.24 " 13.38 " 110.0 " 782.2 " 513.1 " 189.2 " 100.6 " 25.52 " 13.52 " 21
22 14.08 " 9.486" 8.934" 17.13 " 13.26 " 100.8 "3035 " 490.2 " 176.5 " 96.35 " 26.65 " 12.47 " 22
23 13.06 " 8.993" 10.61 " 21.84 " 13.29 " 88.62 "3230 " 454.0 " 163.7 " 93.95 " 23.89 " 11.27 " 23
24 11.93 " 9.145" 11.96 " 25.23 " 14.06 " 80.43 "1995 " 408.3 " 150.7 " 89.29 " 22.03 " 12.74 " 24
25 10.22 " 9.254" 13.13 " 22.69 " 25.06 " 75.00 "1326 " 357.8 " 140.4 " 82.24 " 23.09 " 14.01 " 25
26 10.05 " 10.60 " 13.42 " 21.68 " 33.61 " 73.42 "2278 " 321.7 " 131.0 " 75.72 " 26.20 " 17.39 " 26
27 10.38 " 10.44 " 14.08 " 21.30 " 29.59 " 80.59 "2186 " 314.9 " 122.7 " 70.03 " 26.50 " 18.70 " 27
28 9.765" 9.158" 14.48 " 20.74 " 27.74 " 132.9 "1360 " 601.4 " 114.3 " 64.93 " 24.77 " 16.63 " 28
29 8.480" 14.88 " 19.94 " 28.60 " 161.7 " 972.7 "1323 " 109.7 " 60.25 " 22.06 " 15.28 " 29
30 8.999" 15.07 " 19.07 " 27.07 " 138.4 " 903.2 "1820 " 114.2 " 56.27 " 21.19 " 13.43 " 30
31 9.522" 13.80 " 24.76 " 817.7 "1456 " 52.27 " 12.56 " 31
Mean 11.42 " 9.127" 11.06 " 15.71 " 18.40 " 75.93 " 908.6 "1104 " 343.8 " 102.2 " 30.58 " 17.01 "
Median 10.50 " 9.123" 10.49 " 13.99 " 16.00 " 74.21 " 579.9 " 984.1 " 276.3 " 100.9 " 28.21 " 16.12 "
Maximum 17.02 " 10.60 " 15.07 " 25.23 " 33.61 " 161.7 "3230 "3942 "1020 " 176.8 " 48.50 " 22.66 "
Minimum 8.480" 7.834" 8.934" 11.92 " 13.26 " 19.76 " 119.5 " 314.9 " 109.7 " 52.27 " 21.19 " 11.27 "
Total 353.9 " 255.6 " 342.8 " 471.2 " 570.3 " 2278 "28167 "34211 "10315 " 3168 " 917.5 " 527.3 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 223.5 " " ... Relative Uncertainty +/-10%
Ann. Median 23.09 "
Annual Total 81578 "
Maximum Minimum
Daily 3942 " 7.834"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 11.84 " 11.17 " 12.01 " 16.24 " 14.43 " 17.06 " 94.54 " 61.85 "1128 " 64.69 " 33.43 " 10.66 " 1
2 11.25 " 11.86 " 11.57 " 15.72 " 14.67 " 16.50 " 90.83 " 58.63 "1781 " 62.34 " 36.97 " 10.22 " 2
3 12.89 " 12.24 " 11.25 " 15.32 " 21.20 " 15.96 " 84.81 " 56.28 "2017 " 61.54 " 37.51 " 11.25 " 3
4 12.33 " 11.36 " 10.94 " 14.00 " 21.07 " 15.86 " 83.87 " 54.28 "1638 " 61.55 " 37.71 " 10.45 " 4
5 13.24 " 10.22 " 12.07 " 13.99 " 19.51 " 15.95 " 147.3 " 56.98 "1038 " 61.26 " 36.85 " 10.20 " 5
6 13.26 " 9.605" 11.65 " 14.53 " 19.61 " 16.44 " 180.2 " 60.54 " 709.3 " 66.90 " 35.07 " 9.626" 6
7 11.30 " 10.07 " 13.00 " 13.68 " 20.33 " 18.87 " 183.5 " 60.67 " 524.6 " 72.13 " 32.34 " 9.300" 7
8 12.25 " 9.494" 13.69 " 13.94 " 18.55 " 26.31 " 174.3 " 60.68 " 406.0 " 65.36 " 30.43 " 9.098" 8
9 11.87 " 9.320" 17.28 " 14.54 " 17.47 " 25.69 " 164.5 " 58.21 " 337.7 " 60.46 " 27.90 " 8.750" 9
10 11.38 " 8.564" 17.05 " 13.98 " 17.10 " 27.95 " 150.7 " 54.48 " 288.9 " 56.29 " 26.48 " 9.265" 10
11 10.24 " 7.923" 18.45 " 13.50 " 16.96 " 34.60 " 135.6 " 52.58 " 249.8 " 53.10 " 24.92 " 9.613" 11
12 9.184" 12.18 " 18.76 " 14.47 " 16.61 " 33.69 " 118.1 " 50.83 " 221.4 " 49.93 " 23.53 " 9.061" 12
13 10.24 " 13.03 " 18.09 " 15.24 " 16.51 " 31.02 " 107.9 " 49.28 " 202.7 " 47.90 " 22.44 " 9.064" 13
14 12.86 " 11.27 " 17.35 " 16.30 " 16.50 " 29.07 " 96.19 " 51.35 " 184.8 " 46.47 " 21.36 " 8.583" 14
15 12.59 " 10.75 " 16.35 " 17.31 " 16.39 " 27.47 " 87.69 " 65.29 " 170.8 " 45.04 " 20.99 " 8.186" 15
16 11.76 " 9.167" 15.35 " 16.94 " 17.16 " 25.45 " 81.31 " 88.36 " 158.4 " 43.72 " 19.25 " 8.007" 16
17 10.78 " 9.316" 14.84 " 16.72 " 17.32 " 23.67 " 74.57 " 120.8 " 142.8 " 41.98 " 18.59 " 8.332" 17
18 10.48 " 9.003" 13.61 " 17.85 " 17.90 " 22.61 " 68.11 " 195.2 " 128.5 " 36.81 " 16.98 " 8.606" 18
19 11.98 " 10.37 " 13.01 " 19.45 " 17.02 " 21.42 " 67.18 " 179.7 " 130.6 " 28.18 " 18.13 " 8.443" 19
20 11.47 " 10.75 " 12.13 " 19.77 " 17.31 " 20.87 " 81.73 " 147.1 " 145.4 " 31.68 " 17.07 " 8.241" 20
21 9.761" 9.591" 12.04 " 19.47 " 18.38 " 20.12 " 121.2 " 122.5 " 138.4 " 33.66 " 18.42 " 7.850" 21
22 11.42 " 9.137" 11.72 " 18.20 " 18.24 " 23.07 " 130.4 " 106.6 " 126.6 " 32.70 " 16.85 " 7.647" 22
23 13.85 " 9.053" 11.97 " 17.54 " 17.50 " 39.71 " 122.1 " 109.7 " 118.6 " 32.02 " 16.64 " 7.613" 23
24 14.52 " 9.631" 12.06 " 16.93 " 17.31 " 52.05 " 110.6 " 106.1 " 108.6 " 31.36 " 16.55 " 7.500" 24
25 13.72 " 15.39 " 13.25 " 16.52 " 16.90 " 59.37 " 97.67 " 109.3 " 99.65 " 29.82 " 14.94 " 7.117" 25
26 12.70 " 15.53 " 13.23 " 16.08 " 16.76 " 73.77 " 89.03 " 102.5 " 91.26 " 29.21 " 14.36 " 7.787" 26
27 11.97 " 13.17 " 14.07 " 15.82 " 16.64 " 76.30 " 82.69 " 92.91 " 84.35 " 28.24 " 12.89 " 9.207" 27
28 10.89 " 13.14 " 14.56 " 14.67 " 16.59 " 100.4 " 77.60 " 83.52 " 78.38 " 26.36 " 11.87 " 9.677" 28
29 12.08 " 13.45 " 14.24 " 23.45 " 103.5 " 72.83 " 79.76 " 73.52 " 26.52 " 11.16 " 8.769" 29
30 13.10 " 12.13 " 13.97 " 19.96 " 98.32 " 68.62 " 183.3 " 69.07 " 27.25 " 10.99 " 9.228" 30
31 11.29 " 14.20 " 17.72 " 65.12 " 690.9 " 31.62 " 9.765" 31
Mean 11.89 " 10.80 " 13.91 " 15.90 " 17.84 " 37.10 " 106.8 " 108.7 " 419.7 " 44.71 " 22.75 " 8.939"
Median 11.87 " 10.29 " 13.25 " 15.77 " 17.31 " 26.00 " 94.54 " 79.76 " 164.6 " 43.72 " 20.12 " 9.061"
Maximum 14.52 " 15.53 " 18.76 " 19.77 " 23.45 " 103.5 " 183.5 " 690.9 "2017 " 72.13 " 37.71 " 11.25 "
Minimum 9.184" 7.923" 10.94 " 13.50 " 14.43 " 15.86 " 65.12 " 49.28 " 69.07 " 26.36 " 10.99 " 7.117"
Total 368.5 " 302.3 " 431.1 " 476.9 " 553.1 " 1113 " 3311 " 3370 "12592 " 1386 " 682.6 " 277.1 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 68.12 " " ... Relative Uncertainty +/-10%
Ann. Median 18.09 "
Annual Total 24863 "
Maximum Minimum
Daily 2017 " 7.117"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 8.724" 5.480" 9.853" 9.561" 11.68 " 20.77 " 328.2 " 405.6 " 148.3 " 170.1 " 33.84 " 26.02 " 1
2 7.055" 5.965" 11.40 " 9.552" 11.12 " 19.09 " 278.9 " 356.6 " 214.2 " 168.1 " 36.04 " 24.53 " 2
3 7.432" 7.331" 10.65 " 8.650" 10.94 " 18.77 " 224.5 " 355.4 " 293.7 " 166.4 " 37.93 " 23.02 " 3
4 8.020" 8.177" 8.376" 8.052" 12.79 " 18.75 " 186.2 " 363.6 " 285.5 " 154.9 " 41.68 " 21.64 " 4
5 8.513" 8.883" 7.710" 9.463" 15.03 " 17.87 " 162.4 " 343.5 " 256.7 " 140.0 " 42.53 " 21.34 " 5
6 9.900" 6.116" 7.577" 10.12 " 19.27 " 17.06 " 192.6 " 318.0 " 288.2 " 126.8 " 40.02 " 20.95 " 6
7 9.850" 5.801" 8.392" 10.57 " 21.08 " 17.17 " 459.3 " 287.7 "1360 " 118.6 " 37.20 " 19.64 " 7
8 8.656" 6.831" 7.655" 10.77 " 17.35 " 17.03 " 593.7 " 265.8 "2925 " 192.1 " 34.09 " 19.04 " 8
9 7.248" 8.521" 6.741" 10.94 " 14.84 " 16.24 " 469.4 " 259.6 "1644 " 304.4 " 39.89 " 17.72 " 9
10 6.731" 7.250" 7.356" 10.67 " 13.87 " 15.75 " 363.7 " 502.3 "1403 " 243.1 " 58.56 " 15.56 " 10
11 6.665" 8.065" 6.810" 10.88 " 13.71 " 19.63 " 296.4 " 789.0 "1473 " 198.6 " 57.20 " 15.01 " 11
12 6.718" 7.080" 6.162" 10.46 " 13.30 " 30.13 " 254.8 " 748.2 "1083 " 165.7 " 61.78 " 14.06 " 12
13 6.813" 6.138" 5.931" 9.935" 12.35 " 25.44 " 247.8 " 589.4 " 774.6 " 141.2 " 59.49 " 13.38 " 13
14 6.659" 5.776" 6.478" 8.735" 11.96 " 22.72 " 422.9 " 477.1 " 581.7 " 123.2 " 56.94 " 13.92 " 14
15 7.332" 5.863" 9.346" 9.853" 11.96 " 20.99 " 641.3 " 412.7 " 487.9 " 111.2 " 58.08 " 13.31 " 15
16 6.813" 5.968" 11.42 " 10.31 " 12.01 " 19.99 " 691.2 " 453.6 " 423.8 " 103.4 " 60.71 " 13.30 " 16
17 6.100" 6.118" 12.65 " 9.882" 12.04 " 20.53 "1462 " 627.2 " 369.7 " 94.29 " 61.21 " 12.45 " 17
18 6.184" 5.717" 12.44 " 9.519" 12.06 " 24.01 "1858 " 603.3 " 323.5 " 86.03 " 57.66 " 11.89 " 18
19 6.310" 5.962" 12.32 " 10.59 " 11.71 " 27.36 "1168 " 508.7 " 289.8 " 79.23 " 52.10 " 12.20 " 19
20 6.202" 5.676" 12.33 " 10.67 " 17.17 " 25.20 " 791.9 " 424.2 " 305.2 " 72.41 " 47.81 " 11.63 " 20
21 6.916" 5.236" 13.11 " 12.25 " 17.98 " 23.58 " 585.2 " 368.2 " 311.7 " 66.62 " 44.47 " 10.36 " 21
22 7.056" 5.529" 12.76 " 11.91 " 14.61 " 26.13 " 467.1 " 329.1 " 283.3 " 61.43 " 41.64 " 10.03 " 22
23 6.489" 5.915" 11.43 " 11.51 " 13.36 " 44.39 " 428.5 " 297.1 " 271.2 " 56.03 " 39.43 " 9.894" 23
24 5.963" 5.900" 10.83 " 11.46 " 13.73 " 98.90 " 434.3 " 268.4 " 240.6 " 51.73 " 36.01 " 10.00 " 24
25 5.895" 8.452" 9.736" 11.21 " 15.24 " 139.8 " 378.8 " 247.3 " 213.2 " 48.36 " 32.08 " 9.702" 25
26 5.997" 9.939" 8.986" 11.41 " 19.12 " 112.7 " 337.3 " 227.5 " 186.0 " 44.39 " 29.37 " 10.84 " 26
27 6.095" 10.00 " 9.932" 15.83 " 18.07 " 104.0 " 343.2 " 206.5 " 173.6 " 42.52 " 27.30 " 10.89 " 27
28 6.266" 11.51 " 10.38 " 15.23 " 16.11 " 118.5 " 636.5 " 189.3 " 175.3 " 37.45 " 27.67 " 10.08 " 28
29 6.428" 11.08 " 10.81 " 13.50 " 16.86 " 193.0 " 801.6 " 174.4 " 174.9 " 30.56 " 26.41 " 10.40 " 29
30 5.926" 10.27 " 12.34 " 26.09 " 315.2 " 623.2 " 160.7 " 177.2 " 30.49 " 26.98 " 8.820" 30
31 5.432" 9.880" 23.93 " 484.8 " 147.9 " 31.22 " 8.037" 31
Mean 6.980" 7.113" 9.668" 10.86 " 15.20 " 53.03 " 535.9 " 377.7 " 571.3 " 111.6 " 43.54 " 14.51 "
Median 6.718" 6.118" 9.880" 10.63 " 13.87 " 23.15 " 434.3 " 355.4 " 291.8 " 103.4 " 40.83 " 13.30 "
Maximum 9.900" 11.51 " 13.11 " 15.83 " 26.09 " 315.2 "1858 " 789.0 "2925 " 304.4 " 61.78 " 26.02 "
Minimum 5.432" 5.236" 5.931" 8.052" 10.94 " 15.75 " 162.4 " 147.9 " 148.3 " 30.49 " 26.41 " 8.037"
Total 216.4 " 206.3 " 299.7 " 325.8 " 471.3 " 1591 "16614 "11708 "17138 " 3461 " 1306 " 449.7 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 147.0 " " ... Relative Uncertainty +/-10%
Ann. Median 19.64 "
Annual Total 53786 "
Maximum Minimum
Daily 2925 " 5.236"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 7.421" 10.14 " 11.30 " 13.88 " 27.77 " 99.81 " 231.6 "2456 " 278.7 " 269.9 " 185.2 " 32.54 " 1
2 6.950" 9.848" 14.69 " 12.84 " 24.64 " 94.90 " 221.1 "2865 " 351.8 " 419.4 " 163.7 " 32.08 " 2
3 7.253" 10.31 " 14.28 " 13.02 " 22.33 " 80.35 " 207.6 "2155 " 391.1 " 409.5 " 150.6 " 29.00 " 3
4 7.538" 10.26 " 19.89 " 13.99 " 20.89 " 69.30 " 196.3 "1236 " 370.3 " 358.8 " 138.5 " 21.86 " 4
5 8.167" 10.41 " 26.24 " 15.01 " 24.59 " 61.97 " 253.6 " 908.1 " 333.7 " 323.6 " 128.3 " 20.24 " 5
6 7.557" 10.14 " 22.78 " 16.39 " 34.91 " 58.57 " 416.3 " 730.7 " 297.6 " 302.6 " 119.9 " 20.43 " 6
7 7.306" 18.27 " 21.55 " 16.10 " 34.20 " 55.62 " 826.3 " 613.5 " 267.3 " 273.5 " 109.8 " 20.15 " 7
8 7.009" 29.66 " 21.81 " 16.62 " 32.81 " 54.60 "1010 " 600.2 " 242.2 " 251.7 " 101.2 " 21.03 " 8
9 6.805" 22.40 " 20.80 " 15.84 " 30.22 " 53.69 " 849.4 "1010 " 250.5 " 238.0 " 93.86 " 21.33 " 9
10 6.948" 19.21 " 19.18 " 15.77 " 29.27 " 55.58 "1763 "1692 " 415.3 " 213.8 " 86.92 " 19.44 " 10
11 7.326" 20.26 " 17.75 " 19.26 " 28.15 " 77.33 "2129 "2455 " 524.2 " 197.8 " 79.58 " 19.16 " 11
12 7.769" 20.84 " 16.94 " 30.86 " 27.43 " 127.6 "1212 "1925 " 456.5 " 206.1 " 73.04 " 19.21 " 12
13 6.934" 20.03 " 16.42 " 35.17 " 25.23 " 121.1 "1323 "1245 " 374.1 " 210.9 " 67.55 " 19.42 " 13
14 6.507" 18.37 " 15.65 " 30.72 " 23.51 " 107.2 "2719 " 932.8 " 319.1 " 193.3 " 62.49 " 19.36 " 14
15 6.037" 17.21 " 17.12 " 30.97 " 21.96 " 101.7 "2353 " 750.0 " 285.3 " 180.5 " 58.23 " 19.03 " 15
16 6.426" 13.64 " 15.58 " 28.08 " 20.90 " 96.74 "1342 " 626.5 " 392.7 " 169.4 " 52.91 " 18.99 " 16
17 8.173" 11.98 " 16.38 " 24.45 " 21.82 " 89.32 " 949.2 " 541.8 " 633.1 " 153.8 " 51.61 " 18.56 " 17
18 6.775" 15.14 " 14.93 " 22.43 " 24.03 " 81.79 " 746.2 " 478.7 " 622.1 " 138.0 " 49.31 " 16.91 " 18
19 7.263" 14.43 " 14.26 " 21.16 " 34.99 " 75.48 " 625.1 " 486.3 " 616.0 " 141.8 " 47.33 " 18.70 " 19
20 7.978" 13.70 " 14.11 " 20.31 " 27.33 " 78.18 " 535.0 " 550.4 " 603.6 " 306.0 " 45.48 " 20.91 " 20
21 8.650" 14.83 " 14.54 " 19.43 " 26.97 " 111.9 " 495.5 " 527.8 " 503.8 " 569.5 " 42.96 " 18.35 " 21
22 7.558" 14.18 " 13.61 " 19.18 " 27.03 " 164.9 " 506.7 " 468.5 " 426.8 " 592.4 " 43.29 " 16.54 " 22
23 6.775" 12.23 " 13.96 " 19.03 " 32.66 " 164.9 " 483.4 " 422.1 " 361.9 " 465.7 " 42.06 " 15.63 " 23
24 7.182" 12.20 " 15.51 " 18.84 " 36.12 " 146.8 " 443.5 " 381.4 " 316.0 " 357.1 " 47.43 " 14.95 " 24
25 8.987" 10.95 " 15.42 " 18.57 " 37.79 " 131.3 " 407.7 " 345.4 " 282.7 " 292.8 " 48.10 " 14.36 " 25
26 10.92 " 9.811" 14.39 " 18.20 " 38.56 " 119.0 " 373.3 " 320.2 " 256.4 " 256.4 " 43.91 " 16.73 " 26
27 10.43 " 9.084" 14.35 " 17.40 " 37.93 " 116.0 " 409.9 " 312.9 " 241.4 " 268.2 " 39.35 " 18.17 " 27
28 9.896" 9.836" 15.11 " 16.99 " 37.72 " 155.8 " 618.9 " 299.7 " 239.6 " 292.0 " 37.59 " 15.05 " 28
29 9.126" 14.88 " 18.63 " 42.01 " 193.9 " 762.9 " 278.7 " 238.1 " 272.0 " 35.25 " 13.43 " 29
30 10.93 " 13.78 " 21.04 " 53.08 " 233.3 "1130 " 267.7 " 234.6 " 236.9 " 35.38 " 13.62 " 30
31 9.756" 13.72 " 74.45 " 2001 " 272.6 " 210.6 " 13.23 " 31
Mean 7.882" 14.62 " 16.48 " 20.01 " 31.65 " 106.0 " 888.4 " 908.3 " 370.9 " 283.0 " 76.03 " 19.30 "
Median 7.421" 13.67 " 15.42 " 18.74 " 28.15 " 98.27 " 625.1 " 600.2 " 342.8 " 268.2 " 55.57 " 19.03 "
Maximum 10.93 " 29.66 " 26.24 " 35.17 " 74.45 " 233.3 "2719 "2865 " 633.1 " 592.4 " 185.2 " 32.54 "
Minimum 6.037" 9.084" 11.30 " 12.84 " 20.89 " 53.69 " 196.3 " 267.7 " 234.6 " 138.0 " 35.25 " 13.23 "
Total 244.3 " 409.4 " 510.9 " 600.2 " 981.3 " 3179 "27541 "28156 "11127 " 8772 " 2281 " 598.4 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 231.2 " " ... Relative Uncertainty +/-10%
Ann. Median 39.35 "
Annual Total 84401 "
Maximum Minimum
Daily 2865 " 6.037"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 13.01 " 7.698" 8.413" 15.14 " 16.46 " 20.13 " 37.99 " 743.5 " 188.7 " 101.1 " 44.69 " 20.28 " 1
2 12.72 " 8.904" 9.465" 14.30 " 16.12 " 19.74 " 36.57 " 784.4 " 174.5 " 91.85 " 44.53 " 18.66 " 2
3 13.56 " 9.976" 10.89 " 13.98 " 15.79 " 19.17 " 35.53 "1186 " 163.6 " 85.13 " 44.12 " 19.57 " 3
4 11.95 " 8.492" 12.34 " 13.86 " 15.19 " 18.94 " 34.17 "1327 " 156.2 " 80.31 " 44.10 " 17.35 " 4
5 11.14 " 8.110" 12.65 " 13.29 " 14.48 " 18.44 " 34.45 "1028 " 151.0 " 78.63 " 42.11 " 18.59 " 5
6 11.06 " 8.187" 11.88 " 12.99 " 14.06 " 18.12 " 35.61 " 757.5 " 160.4 " 76.90 " 41.91 " 19.55 " 6
7 12.14 " 11.50 " 10.03 " 12.70 " 13.63 " 17.78 " 35.13 " 708.8 " 166.3 " 80.04 " 39.92 " 18.29 " 7
8 11.56 " 12.92 " 10.46 " 12.00 " 13.50 " 17.58 " 34.74 " 798.8 " 159.0 " 83.38 " 39.25 " 17.72 " 8
9 17.96 " 11.52 " 11.75 " 11.19 " 13.15 " 17.79 " 37.27 "1054 " 159.4 " 78.75 " 36.45 " 17.73 " 9
10 23.91 " 11.10 " 11.10 " 12.91 " 13.25 " 19.19 " 52.21 "1300 " 144.4 " 74.72 " 34.15 " 16.91 " 10
11 11.65 " 10.17 " 10.51 " 20.43 " 13.59 " 20.46 " 59.49 "1095 " 133.5 " 70.62 " 32.93 " 13.79 " 11
12 10.20 " 9.238" 10.91 " 20.76 " 15.00 " 21.33 " 68.92 " 805.2 " 127.8 " 67.59 " 32.10 " 15.20 " 12
13 10.99 " 8.061" 10.98 " 16.99 " 15.94 " 22.76 " 65.03 " 668.8 " 158.4 " 65.54 " 30.99 " 15.23 " 13
14 11.61 " 8.771" 10.74 " 16.21 " 17.69 " 24.55 " 60.52 " 977.6 " 235.6 " 64.25 " 30.78 " 15.19 " 14
15 11.48 " 10.37 " 10.54 " 15.72 " 17.66 " 24.94 " 72.46 " 996.0 " 265.6 " 62.94 " 30.20 " 15.00 " 15
16 10.72 " 10.44 " 11.95 " 15.72 " 16.59 " 24.63 " 83.68 " 876.3 " 232.8 " 61.19 " 29.72 " 13.69 " 16
17 10.07 " 9.729" 12.31 " 15.66 " 16.61 " 24.53 " 99.94 "1065 " 200.6 " 58.36 " 27.15 " 12.23 " 17
18 10.73 " 10.23 " 12.22 " 14.50 " 22.03 " 28.54 " 118.7 "1691 " 177.9 " 55.60 " 25.57 " 10.16 " 18
19 10.62 " 10.24 " 12.54 " 13.84 " 30.37 " 33.56 " 154.3 "1462 " 174.8 " 53.16 " 26.29 " 10.79 " 19
20 10.68 " 9.757" 13.04 " 13.57 " 29.58 " 35.31 " 172.1 " 974.1 " 211.6 " 50.79 " 26.98 " 13.05 " 20
21 9.190" 8.423" 12.20 " 13.40 " 22.79 " 36.26 " 196.4 " 754.4 " 227.3 " 48.70 " 26.91 " 12.62 " 21
22 8.437" 10.19 " 11.38 " 13.31 " 20.73 " 38.50 " 346.9 " 611.9 " 210.8 " 47.40 " 24.75 " 11.27 " 22
23 8.378" 10.69 " 12.32 " 13.07 " 23.29 " 43.86 " 370.1 " 500.4 " 190.7 " 46.03 " 25.11 " 12.16 " 23
24 8.243" 9.585" 13.68 " 12.83 " 40.48 " 46.43 " 513.7 " 431.6 " 176.3 " 45.43 " 24.93 " 11.39 " 24
25 8.105" 8.898" 13.65 " 13.01 " 37.80 " 45.77 " 558.0 " 379.1 " 167.7 " 45.50 " 24.38 " 9.740" 25
26 7.783" 8.690" 12.90 " 17.34 " 35.72 " 44.91 " 981.4 " 332.4 " 159.5 " 45.31 " 23.82 " 12.32 " 26
27 7.547" 8.437" 13.43 " 19.04 " 32.05 " 45.02 "1927 " 296.7 " 148.0 " 46.36 " 22.77 " 15.29 " 27
28 8.037" 8.213" 15.18 " 18.33 " 28.17 " 43.34 "1198 " 267.2 " 134.2 " 41.24 " 23.42 " 15.17 " 28
29 7.951" 15.96 " 17.48 " 25.05 " 42.03 " 878.8 " 244.2 " 122.2 " 34.39 " 22.36 " 15.12 " 29
30 7.623" 16.00 " 16.76 " 22.88 " 39.79 " 942.2 " 222.1 " 111.6 " 42.67 " 21.82 " 16.11 " 30
31 7.382" 14.84 " 21.36 " 888.9 " 206.9 " 44.48 " 15.80 " 31
Mean 10.85 " 9.591" 12.14 " 15.01 " 21.00 " 29.11 " 326.8 " 791.8 " 173.0 " 62.20 " 31.47 " 15.03 "
Median 10.72 " 9.657" 12.20 " 14.14 " 17.66 " 24.59 " 83.68 " 784.4 " 165.0 " 61.19 " 29.96 " 15.19 "
Maximum 23.91 " 12.92 " 16.00 " 20.76 " 40.48 " 46.43 "1927 "1691 " 265.6 " 101.1 " 44.69 " 20.28 "
Minimum 7.382" 7.698" 8.413" 11.19 " 13.15 " 17.58 " 34.17 " 206.9 " 111.6 " 34.39 " 21.82 " 9.740"
Total 336.4 " 268.5 " 376.3 " 450.3 " 651.0 " 873.4 "10130 "24546 " 5191 " 1928 " 944.2 " 466.0 "
Summaries ------------------ Notes -------------------
--------- All recorded data is continuous and reliable
except where the following tags are used...
Annual Mean 126.5 " " ... Relative Uncertainty +/-10%
Ann. Median 22.03 "
Annual Total 46162 "
Maximum Minimum
Daily 1927 " 7.382"
Department of Water and Environmental Regulation HYDAY V145 Output 29/01/2023
Site 611004 Preston River - Boyanup Bridge 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 15.72 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 1
2 18.47 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 2
3 16.31 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 3
4 13.50 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 4
5 13.70 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 5
6 12.11 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 6
7 11.64 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 7
8 10.82 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 8
9 13.38 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 9
10 14.18 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 10
11 11.83 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 11
12 11.10 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 12
13 10.60 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 13
14 10.19 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 14
15 9.459" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 15
16 9.569" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 16
17 10.66 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 17
18 10.15 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 18
19 11.46 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 19
20 8.663" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 20
21 8.585" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 21
22 8.044" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 22
23 8.496" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 23
24 9.341" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 24
25 8.922" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 25
26 8.599" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 26
27 8.873" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 27
28 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 28
29 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 29
30 [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] 30
31 [ ] [ ] [ ] [ ] [ ] [ ] [ ] 31
Mean 11.27 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Median 10.66 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Maximum 18.47 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Minimum 8.044" [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Total 304.4 " [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ] [ ]
Missing Days 4 28 31 30 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 11.27 " " ... Relative Uncertainty +/-10%
Ann. Median 10.66 " [ ... Not Available
Annual Total 304.4 "
Missing Days 338
Maximum Minimum
Daily 18.47 " 8.044"