Attachment 3 - Stormwater Management Plan

min (h)\AEP(*%)

60 (1.0)

90 (1.5)

120 (2.0)

180 (3.0)

360 (6.0)

720 (12.0)

1080 (18.0)

1440 (24.0)

2160 (36.0)

2880 (48.0)

4320 (72.0)

50

34
(0.073)

76
(0.140)

19.1
(0.316)

219
(0.311)

216
(0.232)

20.4
(0.166)

13.3
(0.092)

39
(0.024)

24
(0.012)

0.0
(0.000)

0.0
(0.000)

Interim Climate Change Factors

RCP 4.5
2030 0.869 (4.3%)
2040 1.057 (5.3%)
2050 1.272 (6.4%)
2060 1.488 (7.5%)
2070 1.676 (8.5%)
2080 1.810 (9.2%)

2090 1.862 (9.5%)

20 10
68 941
(0.108) (0.122)
18 14.7
(0.158) (0.164)
21.5 23.4
(0.255) (0.228)
25.4 278
(0.254) (0.230)
474 64.4
(0.352) (0.393)
412 54.9
(0.227) (0.246)
377 53.9
(0.176) (0.203)
22.4 34.2
(0.092) (0.118)
16.5 26.0
(0.059) (0.075)
92 15.3
(0.030) (0.040)
37 62
(0.011) (0.015)

RCP6

0.783 (3.9%)
1.014 (5.1%)
1.236 (6.2%)
1.458 (7.4%)
1.691 (8.6%)
1.944 (9.9%)
2.227 (11.5%)

1.3
(0.131)

174
(0.168)

24.7
(0.209)

30.0
(0.212)

80.8
(0.416)

68.1
(0.287)

694
(0.219)

45.9
(0.129)

35.2
(0.084)

212
(0.046)

8.6
(0.017)

2

13.2
(0.130)

193
(0.157)

23.2
(0.165)

73.5
(0.433)

114.0
(0.485)

99.1
(0.307)

102.0
(0.263)

96.4
(0.218)

65.6
(0.127)

48.8
(0.085)

13.7
(0.021)

RCP 8.5

0.983 (4.9%)
1.349 (6.8%)

1.773 (9.0%)

1

14.6
(0.129)

207
(0.150)

22.0
(0.139)

106.2
(0.552)

138.8
(0.519)

122.3
(0.331)

126.5
(0.285)

132.6
(0.263)

88.3
(0.148)

69.5
(0.104)

17.6
(0.023)

2.237 (11.5%)

2.722 (14.2%)

3.209 (16.9%)

3.679 (19.7%)

time up September cuze 1u:zrAM

Accessed

Version 2018_v1

Note Preburst interpolation methods for catchment wide
preburst has been slightly altered. Point values
remain unchanged

Layer Info

Time
Accessed

Version

Note

06 September 2022 10:27AM

2019 v1

ARR recommends the use of RCP4.5 and RCP 8.5
values. These have been updated to the values that
can be found on the climate change in Australia
website.