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RFI - Stormwater Mgm Plan 20169 - SBSMP - Rev 4 (2)
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Log in to see the plans as drawn SITE BASED STORMWATER
MANAGEMENT PLAN
PROPOSED TOWNHOUSE DEVELOPMENT AT
99, 101 & 105 EUMUNDI NOOSA ROAD
NOOSAVILLE
Prepared for
Altum Property Group
Attention: Laura Sutton
Document Reference
20169 - SBSMP/4
Record of Issue:
Issue Status Author Date Checked Date Authorised Date
26 Nov Henry Morgan 30 Nov Henry Morgan 30 Nov
0 For Review Darren Yuen
2020 RPEQ 11950 2020 RPEQ 11950 2020
01 Dec Henry Morgan 04 Dec Henry Morgan 04 Dec
1 For Approval Darren Yuen
2020 RPEQ 11950 2020 RPEQ 11950 2020
10 Feb Henry Morgan 12 Feb Henry Morgan 12 Feb
2 For Approval Darren Yuen
2021 RPEQ 11950 2021 RPEQ 11950 2021
10 Aug Henry Morgan 10 Aug Henry Morgan 10 Aug
3 For Approval Darren Yuen
2021 RPEQ 11950 2021 RPEQ 11950 2021
12 Oct Henry Morgan 13 Oct Henry Morgan 13 Oct
4 For Approval Darren Yuen
2021 RPEQ 11950 2021 RPEQ 11950 2021
This investigation and report has been authorised by Mr Henry Morgan, a Director of Morgan
Consulting Engineers Pty Ltd.
Henry J Morgan RPEQ 11950 Wednesday, 13 October 2021
D:\JOBS\20-Jobs\20169 - 101 & 105 Eumundi Noosa Road, Noosaville\Civil\Reports\SBSMP\Current\20169 - SBSMP - Rev 4.docx
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Full text of pages 2 to 62 (of 92)
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Table of Contents
1 INTRODUCTION ............................................................................................ 3
2 EXISTING SITE CONDITIONS .............................................................................. 4
2.1 The Site ................................................................................................ 4
2.2 Surrounding Area ...................................................................................... 4
3 PROPOSED DEVELOPMENT ............................................................................... 5
4 EXISTING DRAINAGE PATTERNS ......................................................................... 6
4.1 Existing Infrastructure ............................................................................... 6
4.2 Existing Drainage Patterns ........................................................................... 7
4.3 Lawful Point of Discharge............................................................................ 7
5 STORMWATER QUANTITY................................................................................. 9
5.1 Rational Method Assessment ........................................................................ 9
5.1.1 Design Storms ....................................................................................9
5.1.2 Rainfall Intensity ................................................................................9
5.1.3 Times of Concentration .........................................................................9
5.1.4 Runoff Coefficients ..............................................................................9
5.1.5 Peak Flows ...................................................................................... 10
5.2 Proposed Drainage Patterns ....................................................................... 10
5.3 Downstream Pipe Infrastructure Considerations ............................................... 11
5.4 XPSTORM Modelling ................................................................................. 11
5.4.1 Intensity Frequency Distribution ............................................................ 11
5.4.2 Initial and Continuing Losses ................................................................. 11
5.4.3 On-site Detention .............................................................................. 12
5.4.4 Comparison of Peak Flows at Lawful Point of Discharge ................................. 12
5.4.5 Sensitivity Analysis for 1% AEP Storm Event at end of Planning Period 2100 ......... 13
6 STORMWATER QUALITY ................................................................................ 15
6.1 State Planning Policy Assessment ................................................................ 15
6.2 Construction Phase ................................................................................. 15
6.3 Operational Phase .................................................................................. 17
6.3.1 Sources of Contaminants ..................................................................... 17
6.3.2 Proposed Treatment Train ................................................................... 18
6.3.3 Pollutant Export Modelling ................................................................... 18
6.3.4 MUSIC Modelling Parameters ................................................................. 19
6.3.5 MUSIC Modeling Results ....................................................................... 19
7 FLOODING ................................................................................................ 21
8 CONCLUSION ............................................................................................. 22
Appendix A DETAILED SITE SURVEY PLAN ................................................................. 23
Appendix B PROPOSED DEVELOPMENT PLANS ............................................................ 24
Appendix C NOOSA COUNCIL INTERACTIVE MAPPING DATA ............................................ 25
Appendix D NSC WATER QUALITY AND DRAINAGE CODE ................................................ 26
Appendix E STORMWATER QUANTITY CALCULATIONS................................................... 27
Appendix F CONCEPT SITE LEVELS AND DRAINAGE PLAN ............................................... 28
Appendix G BOM IFD DATA .................................................................................. 29
Appendix H XPSTORM PRE DEVELOPMENT RESULTS ..................................................... 30
Appendix I XPSTORM POST DEVELOPMENT RESULTS .................................................... 31
Appendix J XPSTORM POST DEVELOPMENT MITIGATED RESULTS ...................................... 32
Appendix K STORMWATER QUALITY AND MAINTENANCE GUIDELINES ................................. 33
Appendix L NSC FLOOD HAZARD OVERLAY MAP .......................................................... 34
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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1 INTRODUCTION
This Site Based Stormwater Management Plan (SBSMP) has been prepared for the proposed
Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville.
This SBSMP has been prepared to investigate the effects the development will have on stormwater
quantity and quality.
The objective of this SBSMP is to ensure that there is no adverse impact by the development on
the environmental value of the receiving waters during the construction and operational phases
of the development. This SBSMP will also provide recommendations to ensure that the post-
development peak outflow conditions are not greater than the pre-development peak outflow
conditions.
In order to achieve this objective, this SBSMP:
1. Describes the environmental setting of the development site and precinct;
2. Describes the nature of the proposed development as it relates to stormwater quality;
3. Calculates the peak flows for both pre and post-development conditions;
4. Calculates the detention volume required to achieve the pre-development outflow in the
post-development state; and
5. Identifies potential sources of contaminants and describes the management techniques
designed to be employed on the site to achieve the water quality objectives.
The proposed development has been assessed against the following guidelines and planning
documents:
1. State Planning Policy 2017 (SPP 2017);
2. Urban Stormwater Quality Planning Guidelines 2010;
3. The Queensland Urban Drainage Manual (QUDM); and
4. The Noosa Council Planning Scheme.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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2 EXISTING SITE CONDITIONS
2.1 The Site
The site, described as Lot 1 on RP849431, Lot 1 on RP230931 and Lot 61 on RP69404, has an
approximate area of 8,668m2 (0.867ha). Lot 1 on RP849431 contains an existing residential dwelling
while Lot 1 on RP230931 and Lot 61 on RP69404 were existing commercial businesses.
The majority of the site generally slopes from west to east at an average grade of approximately
4.5% between the elevations of 19.30m AHD and 14.50m AHD. The site is accessible via Eumundi
Noosa Road, which bounds the western property boundary.
Refer to Figure 2.1 for a Locality Plan and Appendix A for the Detailed Site Survey. .
N
Treasure Cove
Subject
Site
Regatta Circuit
Figure 2.1 – Locality Plan of Site and Surrounding Area
2.2 Surrounding Area
The site is located within the limits of the Noosa Council region within a Medium Density Zoned
area and is bound by Eumundi Noosa Road to the west. The surrounding areas are generally zoned
as Low and Medium Density Residential with Community Facilities located to the south.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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3 PROPOSED DEVELOPMENT
The proposed Townhouse Development primarily involves the construction of:
1. 42 x 2 bed apartments and 11 x 3 bedroom apartments;
2. Carparking spaces for residents and visitors;
3. Vehicular access from Eumundi Noosa Road at the north-west corner of the site;
4. Hardstand pavement area for vehicular manoeuvring;
5. Dedicated landscaping throughout the site; and
6. A communal pool area.
Refer to Appendix B for the Proposed Development Plans.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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4 EXISTING DRAINAGE PATTERNS
4.1 Existing Infrastructure
Data obtained from the detailed survey and as-constructed information obtained from Noosa
Council’s interactive mapping show the following existing drainage infrastructure:
1. An existing 225mm to 450mm dia. stormwater pipe running parallel to the south eastern
boundary of the site within Lots 45, 46 and 62 on SP132578 and Lots 42-44 on SP144002;
2. An existing gully pit located within the south east corner of the site with a 225mm dia.
stormwater connection to the existing 300mm dia. pipe within Lot 46 SP132578;
3. An existing stormwater structure located at the north-western corner of the site within the
driveway access of Lot 61 on RP69404, with a kerb adaptor connection to Eumundi Noosa
Road; and
4. An existing gully pit located within the north east corner of the site with a 300mm dia.
stormwater connection to the existing 300mm dia. pipe within the driveway of Lot 79 on
SP138388, which ultimately connects to a 450mm dia. pipe within Treasure Cove.
Refer to Figure 4.1 for the existing stormwater infrastructure and drainage patterns, Appendix A
for the Detailed Site Survey and Appendix C for the Noosa Council Interactive Mapping data.
N
Subject Site
Legend
Sheet Flow Path
Stormwater Pipe
Gully Pit
Figure 4.1 – Existing Drainage Paths & Infrastructure
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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4.2 Existing Drainage Patterns
Data obtained from Noosa Council’s records and detailed site survey indicate that the site has
the following drainage patterns:
Roofwater Runoff
1. The existing commercial building roofwater within Lot 1 on RP230931 appears to travel
underground and connect into the existing structure located within the driveway access of
Lot 61 on RP69404. Hence, the roofwater from the existing commercial building was
discharged to the Eumundi Noosa Road kerb and channel.
2. A review of the street frontage of the site along Eumundi Noosa Road indicated that there
is no kerb outlet for Lot 1 on RP849431. Hence, it is assumed that roofwater from the
existing residential building is discharged to the ground or to the existing underground
stormwater infrastructure at the rear of the site via downpipes.
3. The existing building roofwater within Lot 61 on RP69404 appears to travel underground
and connect into the existing structure located within the north eastern corner of the site.
Hence, the roofwater from the existing building was discharged to the 300mm dia. pipe
within Lot 79 on SP138388.
Surface Runoff
1. Surface runoff from the rear portion of Lot 1 on RP230931 generally sheet flows towards
the adjacent site on Lot 61 on RP69404, north and east of the site.
2. Surface runoff from the front portion of Lot 1 on RP230931 generally sheet flows towards
the Eumundi Noosa Road kerb and channel.
3. Surface runoff from Lot 1 on RP849431 generally sheet flows south east towards Lot 46 and
62 on SP132578.
External Catchment
1. There appears to be no external catchment entering the site.
4.3 Lawful Point of Discharge
If the proposed development maintains pre-development flow conditions, the lawful point of
discharge for the proposed development is the existing stormwater drainage infrastructure within
Lot 46 and 62 on SP132578, southeast of the site, the existing stormwater infrastructure within
Lot 79 on SP138388, northeast of the site, and the Eumundi Noosa Road kerb and channel.
In consideration of the site characteristics, surrounding topology and stormwater drainage
infrastructure, the aforementioned proposed lawful point of discharge is considered to be
compliant with the criteria for lawful point of discharge outlined in Section 3.9.1. of QUDM 2017
as per below:
i) The location of the proposed discharge point is under the lawful control of the local
government or other statutory authority from whom permission to discharge has been
received.
ii) The post development discharge will not cause an actionable nuisance, nor environmental
or property damage, as it is intended to implement measures to account for any change to
the existing flow characteristics.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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iii) Authority to discharge over affected properties will not be required as the proposed
development will discharge directly into the existing waterway and will be maintained as
per existing drainage conditions.
Refer to Section 5 outlining the Stormwater Quantity aspects of this site and Appendix D for the
Water Quality and Drainage Code.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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5 STORMWATER QUANTITY
A roof and allotment drainage system is to be designed to comply with:
1. AS/NZS 3500.3:2015 - Plumbing and Drainage Part 3: Stormwater Drainage;
2. The Queensland Urban Drainage Manual (QUDM), and;
3. The Noosa Council Engineering Design Standards – Roads, drainage and earthworks.
5.1 Rational Method Assessment
The Rational Method has been used to calculate the peak discharges from the site under the
existing (pre development) and proposed (post development) conditions.
5.1.1 Design Storms
As defined in the Noosa Council’s Planning Scheme the following design storms were adopted:
1. Minor Drainage System: 10 year ARI statistical flood (Q10 storm);
2. Major Drainage System: 100 year ARI statistical flood (Q100 storm).
5.1.2 Rainfall Intensity
Rainfall intensities for this study were obtained from the Australian Bureau of Meteorology.
5.1.3 Times of Concentration
Times of concentration (tc) were calculated as defined in the QUDM. Refer to Table 5-1 for the
adopted tc’s and Appendix E for tc calculations.
Table 5-1 – Adopted tc values
Catchment Catchment Catchment
Property State
A (tc) B (tc) C (tc)
Pre development 8.1 11.9 10.8
Post development 5.3 5.6 5.0
5.1.4 Runoff Coefficients
The 10 year runoff coefficient’s (C10) were determined as defined in the QUDM. Refer to Table 5-2
below for the adopted C10 values.
Table 5-2 – Adopted C10 Values
Catchment Catchment Catchment
Property State
A (C10) B (C10) C (C10)
Pre development 0.74 0.74 0.79
Post development 0.84 0.83 0.90
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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5.1.5 Peak Flows
Refer to Table 5-3 for a summary of the predicted minor and major discharge rates for pre and
post development conditions and Appendix E for the Rational Method calculations.
Table 5-3 – Pre and Post Development Peak Flows
Property State Q1 (m3/s) Q2 (m3/s) Q5 (m3/s) Q10 (m3/s) Q20 (m3/s) Q50 (m3/s) Q100 (m3/s)
Pre development A 0.048 0.057 0.086 0.107 0.127 0.162 0.186
Post development A 0.086 0.103 0.157 0.195 0.234 0.298 0.341
Pre development B 0.073 0.087 0.132 0.162 0.193 0.243 0.278
Post development B 0.100 0.120 0.183 0.226 0.271 0.345 0.398
Pre development C 0.024 0.028 0.043 0.053 0.063 0.079 0.090
Post development C 0.011 0.013 0.020 0.025 0.030 0.037 0.040
The proposed development will result in an increase in impervious surface areas and will
consequently increase stormwater runoff peak flow rates in Catchments A and B.
Hence, it is proposed to utilise two on-site detention (OSD) systems to mitigate the stormwater
runoff of the proposed development prior to discharging to the existing stormwater infrastructure
within Lot 46 and 62 on SP132578, southeast of the site, and Lot 79 on SP138388, northeast of the
site.
Catchment C will result in a decrease in stormwater runoff peak flow rates. Therefore, no
detention is required to mitigate Catchment C. However, a rainwater reuse tank has been
proposed which will provide some mitigation.
Refer to Section 5.3 for the XPSTORM Modelling analysis of the site, Appendix E for the Stormwater
Quantity Calculations, Appendix F for the Concept Site Levels and Drainage Plan and Section 6 for
the Stormwater Quality Management Plan.
5.2 Proposed Drainage Patterns
The proposed drainage patterns are as follows (Refer to Appendix F):
Roof Catchment:
1. Runoff from the roof catchment of Building 1 will flow via downpipes to a rainwater tank
located at the northwest corner of the site for rainwater reuse with overflow discharging
to the Lawful Point of Discharge within the Eumundi Noosa Road kerb and channel.
2. Runoff from the roof catchment of Buildings 5-8 will flow via downpipes an internal
drainage system, where it will be directed to the detention basin located at the southeast
corner of the site prior to discharge to the Lawful Point of Discharge within Lot 46 and 62
on SP132578.
3. Runoff from the roof catchment of Buildings 2-4 will flow via downpipes an internal
drainage system, where it will be directed to the detention basin located at the northeast
corner of the site prior to discharge to the Lawful Point of Discharge within Lot 79 on
SP138388.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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Ground Catchment:
1. Surface runoff from the ground level hardstand and landscaping areas of the southern
catchment will be collected by various stormwater pits connected to the internal drainage
network, where it will be directed to the detention basin located at the southeast corner
of the site prior to discharge to the Lawful Point of Discharge within Lot 46 and 62 on
SP132578.
2. Surface runoff from the ground level hardstand and landscaping areas of the northern
catchment will be collected by various stormwater pits connected to the internal drainage
network, where it will be directed to the detention basin located at the northeast corner
of the site prior to discharge to the Lawful Point of Discharge within Lot 79 on SP138388.
Refer to Appendix F for the Concept Site Levels and Drainage Plan.
5.3 Downstream Pipe Infrastructure Considerations
The existing 225 to 450mm diameter stormwater line traversing the rear of Lots 45, 46 and 62 on
SP132578 and Lots 42-44 on SP144002 and the existing 300mm diameter stormwater line within
the driveway of Lot 79 on SP138388 have been modelled within PC DRAINS to determine their
capacity to take post-development mitigated flows from the development. The subsequent
longitudinal sections and calculations table have been exported from PC DRANS and outlined
within the drainage plans attached in Appendix F.
It was determined from the results of PC DRAINS modelling that the downstream stormwater
drainage infrastructure has capacity to convey up to 67L/s from southern catchment and 120L/s
from the northern catchment of the proposed development. Subsequent XPSTORM detention
modelling has taken this capacity into account.
5.4 XPSTORM Modelling
5.4.1 Intensity Frequency Distribution
The IFD data and temporal patterns used for the XPSTORM modelling has been obtained from the
Bureau of Meteorology for the following coordinates:
Latitude -26.406
Longitude 153.050
Refer to Appendix G for a copy of the BOM IFD data table.
5.4.2 Initial and Continuing Losses
Initial and continuing losses were approximated based on the storm losses obtained from ARR Data
Hub for the aforementioned coordinates. Refer to Table 5-4 below for the adopted initial and
continuing losses.
Table 5-4 – Adopted Initial and Continuing Losses
Designation Initial Loss Continuing Loss
Impervious Areas 0.0 0.0
Pervious Areas 25.0 2.5
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5.4.3 On-site Detention
In order for the post-development stormwater discharge conditions to match the pre-development
conditions, it is proposed to incorporate an open detention basin with a maximum storage volume
of 200kL for the southern catchment and an open detention basin with a maximum storage volume
of 160kL for the northern catchment. The detention basins are to be located above ground within
the southeast corner of the site and the northeast corner of the site, respectively.
The proposed OSD basin for the southern catchment will have the following properties:
Specified base area = 170m2;
Specified internal depth = 1.15m;
Low flow orifice diameter = 0.15m;
Overflow weir pit elevation from base of tank = 0.85m;
Required basin volume = 179kL; and
Provided basin volume = 200kL.
The proposed OSD basin for the northern catchment will have the following properties:
Specified base area = 160m2;
Specified internal depth = 1.00m;
Low flow orifice diameter = 0.22m;
Overflow weir pit elevation from base of tank = 0.70m;
Required basin volume = 136kL; and
Provided basin volume = 160kL.
The detention basin will be designed to contain all flows up to a Q100 storm event and mitigated to
the capacity of the existing stormwater infrastructure at a Q20 storm event.
Refer to Appendix F for the Concept Site Levels and Drainage Plan which details the proposed on-
site detention system.
5.4.4 Comparison of Peak Flows at Lawful Point of Discharge
The pre-development and post-development mitigated peak mean/median flow rates were
compared for the catchment and are shown in Table 5-5 below.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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Table 5-5 - Comparison of Peak Flows
XPSTORM XPSTORM XPSTORM XPSTORM XPSTORM XPSTORM
Catchment A Catchment A Catchment B Catchment B Catchment C Catchment C
ARI Pre- Post- Pre- Post- Pre- Post-
(years) development development development development development development
Flows Flows (Mitigated) Flows Flows (Mitigated) Flows Flows
(m3/s) (m3/s) (m3/s) (m3/s) (m3/s) (m3/s)
1 0.036 0.032 0.058 0.046 0.027 0.016
2 0.043 0.038 0.071 0.056 0.030 0.018
5 0.068 0.052 0.112 0.084 0.041 0.024
10 0.087 0.060 0.142 0.102 0.050 0.027
20 0.107 0.067 0.175 0.120 0.060 0.031
50 0.129 0.084 0.210 0.137 0.070 0.031
100 0.146 0.106 0.240 0.157 0.080 0.031
The XPSTORM hydraulic modelling has demonstrated that the proposed mitigation implemented will
maintain pre-development flows (or less) for all design storms at the LPDs located within Lot 46
and 62 on SP132578, southeast of the site, and Lot 79 on SP138388, northeast of the site. The
modelling has also demonstrated that post-development mitigated flows up to Q20 can be conveyed
through the 225 to 450mm diameter stormwater line traversing the rear of Lots 45, 46 and 62 on
SP132578 and Lots 42-44 on SP144002 and the existing 300mm diameter stormwater line within the
driveway of Lot 79 on SP138388.
Refer to Appendix H for the pre-development XPSTORM results, Appendix I for the post-
development XPSTORM results and Appendix J for the XPSTORM post-development mitigated
results.
5.4.5 Sensitivity Analysis for 1% AEP Storm Event at end of Planning Period 2100
A sensitivity analysis has been undertaken to determine the impact from a 1% AEP storm event at
end of planning period 2100 takes into account a 20% increase in rainfall intensity for climate
change. As part of the sensitivity analysis, post-development mitigated peak mean/median flow
rates were calculated in XPSTORM as a result of incorporating the 20% increase in rainfall intensity
for the catchment and are shown in Table 5-6 below for a 1% AEP storm event.
Table 5-6 – 2100 Post Development Mitigated Peak Flows
XPSTORM Catchment A XPSTORM Catchment B XPSTORM Catchment C
AEP
Post-development Flows (Mitigated) Post-development Flows (Mitigated) Post-development Flows
(%)
(m3/s) (m3/s) (m3/s)
1 0.142 0.201 0.037
The XPSTORM hydraulic modelling shows that the water level exceeds the emergency weir level in
the southern basin by approximately 36mm. However, as can be seen when comparing flows
between Table 5-5 and Table 5-6, pre-development flows are still maintained for Catchment A.
There is also a 300mm wide gap between the boundary and the basin wall where emergency
overflow will fall onto natural ground level prior to sheet flowing across the boundary. Therefore,
pre-development drainage conditions are not expected to be worsened for the downstream
properties within Lot 46 and 62 on SP132578, southeast of the site.
Site Based Stormwater Management Plan
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The XPSTORM hydraulic modelling shows that the water level does not exceed the emergency weir
level in the northern basin and a freeboard of approximately 33mm is maintained. As can be seen
when comparing flows between Table 5-5 and Table 5-6, pre-development flows are still maintained
for Catchment B. There is also a 300mm wide gap between the boundary and the basin wall where
emergency overflow will fall onto natural ground level prior to sheet flowing across the boundary.
Therefore, pre-development drainage conditions are not expected to be worsened for the
downstream properties within Lot 79 and Lot 80 on SP138388, northeast of the site.
Furthermore, the downstream pipe capacity analysis for each legal point of discharge has taken
into account a tailwater condition of 150mm below surface at the stormwater gully pits located
within the road reserves, which is considered a conservative measure.
Therefore, XPSTORM hydraulic modelling has demonstrated that the proposed mitigation
implemented will still maintain pre-development flows (or less) for the 1% AEP storm event at end
of planning period 2100 at the aforementioned LPDs.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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6 STORMWATER QUALITY
The following section of the report will outline the potential contaminants and proposed solutions
to be incorporated during the construction and operational phases of the proposed development.
6.1 State Planning Policy Assessment
The purpose of this sub section is to determine if State Planning Policy (SPP 2017) stormwater
quality requirements, as set out by the Department of Environment and Resource Management, will
be triggered for this development. Refer to Table 6.1 for the State Planning Policy Checklist for
stormwater quality.
Table 6.1 – State Planning Policy Checklist
Material Change of Use (MCU) Y/N?
MCU for an urban purpose that involves premises ≥ 2500m 2 Y
AND
Will result in 6 or more dwellings
Y
OR
Will result in impervious area greater than 25% of the net developable area.
Y
The development has been assessed against the latest State Planning Policy 2017 (SPP 2017). The
proposed development will entail the material change of use for urban purposes, which will involve
a land area greater than 2,500m2. Consequently, State Planning Policy 2017 (SPP 2017) is triggered.
Hence, tertiary stormwater quality treatment is warranted for this development in accordance
with the State Planning Policy 2017 (SPP 2017).
6.2 Construction Phase
Sediment generated during the construction phase shall be dealt with in accordance with an
Erosion and Sediment Control Plan and kept on site during the construction phase.
Erosion and Sediment Control (ESC) Measures such as silt fences, diversion drains, drainage
structure protection and dust control (clearing) will be implemented. Silt fences are to be erected
along the boundary of the site and around the construction area. These fences are to be cleaned
by the contractor when the capacity is reduced by 25%. Where possible, disturbance to the existing
surface is to be limited to the immediate work area. The existing ground cover is not to be stripped
until the contractor is ready for earthworks to begin.
Stockpiles and construction materials are not permitted to be stored within the road reserve and
should be contained using silt fences. Diversion drains are to be provided at upstream catchments
to reduce flows to earthworks areas. In any areas where flows could enter adjacent properties
temporary stabilisation is to be provided.
All ESC measures are to be provided as soon as earthworks have commenced and staged to suit
construction. The contractor is responsible for this action. A temporary construction exit is to be
located at each entry point to the site and will be determined based on the stage of works being
completed. The contractor is to ensure all dust tracked onto surrounding roads is immediately swept
to remove silt/dust.
All new stormwater pits are to be protected from sediment infiltration by wrapping new pits and
grates in geofabric or covering appropriately with timber board. Silt fences are to remain in place
during the maintenance period until the site is established (80% ground cover).
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Potential sources of contaminants identified for the construction phase of the development are
outlined in Table 6.2 together with proposed stormwater quality improvement devices,
management and maintenance procedures.
Table 6.2 - Potential Contaminants and Proposed Treatments
Proposed Treatment
Management /
Pollutant Potential Source Device and Maintenance
Maintenance Procedures
Procedure
Sediment & Excavated Provision of sediment and Sand filled filter socks.
Eroded material, fill silt barriers to the site Removal of excess
material material, exposed drainage entry and exit sand/silt build-up at
ground, stockpiles points. regular intervals and
of material. after every storm.
Dust Stockpiles of Covering the material or Coverage of material
material, exposed wetting it down at with plastic, geotextile,
ground. regular intervals. surface binding agents or
regular watering.
Litter Refuse generated Construction waste is to Industrial bin is to be
by staff. be cleaned off the site provided within the
area and disposed of into construction area - to be
an industrial bin then emptied on at least a
removed by a refuse weekly basis.
collection contractor.
Concrete Washing of Provision of a closed area Liquids to be removed by
concrete onsite for washing off of a waste collection
trucks/tools to concrete slurries. contractor. Solids to be
remove placed into a refuse bin.
wet/unused
concrete.
Surfactants Washing down No cleaning of vehicles Monitoring & prevention
(detergents) operations on will be permitted on site.
hardstand area
using detergents.
Chemical Typically this may Where spills occur, the A temporary containment
(Paints, occur due to containment area is to area. This is to be
thinners spillage of product. stop escape. The impermeable and of a
etc.) material is to be treated size to permit
(as required) and mixing/transfer, and
removed and cleaned by with a storage volume of
a licensed contractor. twice the largest
Minor spillage outside container used.
this area shall be cleaned Treatment of spills is to
up with cloths and occur on site. No
disposed of to waste via discharge of treated
the industrial bin. water to the stormwater
system is to occur
without council approval.
Incidents are to be
reported to the EPA.
Wastewater Spillage from the A licensed contractor No leakage is to be
relocation of the shall remove any residue permitted to enter the
existing sewerage sewage from unused groundwater or discharge
reticulation. pipes and contaminated to the stormwater
soils are to be disposed system.
of via the industrial bin.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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6.3 Operational Phase
The proposed development has been assessed against the latest State Planning Policy 2017 (SPP
2017). The proposed development will entail the material change of use for urban purposes, which
will involve a land area greater than 2,500m2. Consequently, State Planning Policy 2017 (SPP 2017)
is triggered and stormwater quality treatment is will be required for this development.
Water quality objectives (WQO’s) for South East Queensland as set out in State Planning Policy 2017
(SPP 2017) should be achieved by identifying and adopting best practise techniques in accordance
with the abovementioned guidelines. Refer to Table 6.3 for the target WQO’s.
Table 6.3 – Minimum Mean Annual Load Reductions
Minimum Mean Annual
Contaminant
Load Reductions
Total Suspended Solids (TSS) ≥ 80%
Total Phosphorus (TP) ≥ 60%
Total Nitrogen (TN) ≥ 45%
Gross Pollutants (GP) ≥ 90%
6.3.1 Sources of Contaminants
Potential sources of contaminants and stormwater quality improvement devices identified for the
operational phase of the development are outlined in Table 6.4
Table 6.4- Sources of Contaminants
Pollutant
Target Pollutant Type Acceptable Treatment Examples
Size
Primary Screening of gross Litter baskets, swales, buffer strips,
>5000um
Pollutants pollutants GPT’s, Bio-retention basins
Sedimentation of
Secondary 125um -
coarse to medium Swales, sedimentation basins, ponds
Pollutants 5000um
sediment
Bio-retention basins, constructed
Enhanced
10um – wetland macrophyte zones, other bio
sedimentation of fine
125um technologies, proprietary tertiary
particulates
stormwater treatment dvices
Tertiary Adhesion and filtration Constructed wetland macrophyte zones,
0.45um –
Pollutants of very fine / colloidal other bio technologies, proprietary
10um
sediment tertiary stormwater treatment dvices
Biological uptake of Constructed wetland macrophyte zones,
<0.45um
dissolved particles other bio technologies
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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Page 18
6.3.2 Proposed Treatment Train
The proposed treatment train has been modelled using the following methodology:
1. Roofwater from Building 1 will be collected by a 15kL rainwater reuse tank with overflow to
the Eumundi Noosa Road kerb and channel. The rainwater tank will be utilised for landscape
irrigation only, servicing all common landscape areas and the private courtyards of Block 5.
2. Roofwater from the rest of the proposed development will be collected by the internal
drainage network which will subsequently direct flow to the end-of-line bio-retention basins
for treatment.
3. Surface runoff from the hardstand areas and landscaping areas will be collected by various
pits. The internal drainage networks will subsequently direct flow to the end-of-line bio-
retention basins for treatment.
All runoff described above will then discharge to the lawful points of discharge. A Concept Site
Levels and Drainage Plan of the proposed internal drainage network detailing the treatment train
assets is included in Appendix F. Refer to Table 6.5 for details of the proposed treatment train
assets.
Table 6.5- Proposed Treatment Assets
Treatment Treatment
Description
Level Asset
Rainwater Reuse 15kL tank installed at the north western
Primary/
Tank (Landscape corner of the site, irrigating an area of
Secondary
Irrigation Only) 1,570m2.
1. 40m2 Total Filter Area
Bio-retention
2. 0.4m Filter Media Depth
Basin A
Primary/ 3. 0.2m Extended Detention Depth
Secondary/
Tertiary 1. 55m2 Total Filter Area
Bio-retention
2. 0.4m Filter Media Depth
Basin B
3. 0.2m Extended Detention Depth
Refer to Appendix K for the Stormwater Quality Operation Management and Maintenance
Guidelines.
6.3.3 Pollutant Export Modelling
Following the definition of water quality objectives for the site and an assessment of the treatment
options suitable for the development, the most appropriate treatment scheme for the site was
identified. The impact of the stormwater management strategy on the quality of stormwater runoff
discharged from the site has been assessed using the pollutant export model, Model for Urban
Stormwater Improvement Conceptualisation (MUSIC).
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 19
20169 - SBSMP/4
Page 19
6.3.4 MUSIC Modelling Parameters
The MUSIC model was set up in accordance with the Water-By-Design MUSIC Modelling Guidelines
for South East Queensland to the parameters listed in Table 6.5 and Table 6.6. Refer to Figure 6.1
for source node areas.
Table 6.6 – MUSIC Parameters
Parameter Data Used
Rainfall Data 40908 TEWANTIN
Modelling Timestep 6 minutes
Routing No routing drain links were adopted
Table 6.7 – Catchment Runoff Generation Parameters
Parameter Residential Catchment
Rainfall Threshold 1
Soil Storage Capacity (mm) 500
Initial Storage Capacity (% capacity) 10
Field Capacity (mm) 200
Infiltration Capacity Coefficient a 211
Infiltration Capacity Coefficient b 5
Initial Depth (mm) 50
Daily Recharge Rate (%) 28
Daily Baseflow Rate (%) 27
Daily Deep Seepage Rate (%) 0
6.3.5 MUSIC Modeling Results
Refer to Figure 6.1 for a print screen schematic of the MUSIC model for the proposed development
and Figure 6.2 for the annual pollutant loads that will be discharged from the site for the proposed
development.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 20
20169 - SBSMP/4
Page 20
Figure 6.1 - MUSIC Model Print Screen Schematic
Figure 6.2 - MUSIC Modelling Results
The modelling results show that the pollutant reduction objectives are met for all contaminants
given in Section 6.
Should operational requirements change, this plan is required to be amended to suit. Substantial
changes may require resubmission to the local authority. Following completion of construction, this
plan is to be incorporated into the total-site management practices.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 21
20169 - SBSMP/4
Page 21
7 FLOODING
Information from the Noosa Council Flood Hazard Overlay Map confirms that the site is unaffected
by flooding and inundation.
Refer to Appendix L for the Noosa Council Flood Hazard Overlay Map.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 22
20169 - SBSMP/4
Page 22
8 CONCLUSION
The proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville has been
assessed for its impact on the quantity and quality of stormwater drainage.
If the proposed development maintains pre-development drainage patterns, the lawful points of
discharge are the stormwater drainage infrastructure within Lot 46 and 62 on SP132578, southeast
of the site, the existing stormwater infrastructure within Lot 79 on SP138388, northeast of the
site, and the Eumundi Noosa Road kerb and channel, west of the site.
No external catchments have been identified.
Onsite detention will be provided in the form of two detention basins to attenuate post
development peak flow rates and ensure non-worsening of flooding to properties and infrastructure
adjacent to, and downstream of the subject site. The detention basins will be designed to contain
all flows up to a Q100 storm event. The volume and configuration of the on-site detention system
will be confirmed during detailed design stage.
Sediment generated during the construction phase shall be dealt with in accordance with an
Erosion and Sediment Control Plan to be kept on site during the construction phase.
The proposed development triggers the State Planning Policy 2017 (SPP 2017). The water quality
objectives (WQO’s) for South East Queensland have therefore been achieved by treating the roof
and surface stormwater runoff via two bio-retention basins and a rainwater tank for rainwater
reuse, prior to discharging to the Lawful Points of Discharge.
The subject site is not affected by flooding.
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 23
20169 - SBSMP/4
Page 23
APPENDIX A
DETAILED SITE SURVEY PLAN
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 24
LEGEND
FENCE, GATE, BOLLARD
O/H ELECTRICITY, LIGHT POLE, POWER POLE
U/G ELECTRICITY, PIT, BOX, MANHOLE
BITUMEN
CARPARK O/H COMMUNICATIONS, POLE
BITUMEN
CARPARK U/G COMMUNICATIONS, PIT, BOX, MANHOLE
KERB AND CHANNEL, SIGN, GULLY TRAP
GRAVEL DRIVEWAY SEWER PIPE, MANHOLE
STORM WATER PIPE, FIELD INLET, MANHOLE
WATER MAIN, VALVE, HYDRANT, METER
GAS MAIN, VALVE, METER
20 YED
SHED UNIDENTIFIED SERVICE, PIT, MANHOLE
)
INSPECTION OPENING, WITNESS MARKER
DRIVEWAY
21
DRIVEWAY
NE VE
TOP OF BANK
Y ED
BOTTOM OF BANK
)
)
NUARY 2017
NE 2021)
JU UR
17
SHOP TREE
TYPE GUM TREE, TRUNK DIAMETER 400mm
AR VEY
HEIGHT 15metres
GRAVEL
GRAVEL
(S
Other types: PM = Palm
20
(SURVEYED JU
NS = Not specified
(SURVEYED JA
NU R
JA (SU UNDERGROUND UTILITY QUALITY LEVELS
QUALITY LEVEL A: Highest quality level, positive
identification and absolute spatial position in three
dimensions (eg Direct measurement and visible)
QUALITY LEVEL B: Relative subsurface feature
location in three dimensions (eg Electronic trace)
QUALITY LEVEL C: Approximate location and
FIBRO attributes using a combination of existing records and
BUILDING a survey of visible evidence
QUALITY LEVEL D: Lowest quality level. Compiled
from any, or a combination of existing records, site
inspections, anecdotal evidence
NOTES
(4) Prior to any demolition, excavation or construction on the site,
SHED NOTES the classification and location of these services should be
confirmed and the relevant authority should be contacted for
RESIDENTIAL (1) This plan was prepared for the purpose and exclusive use of possible location of further underground services and detailed
DWELLING ALTUM PROPERTY GROUP and their other professional advisers
7/07/2021 S:\M2677\OLIVER - EUMUNDI RD\AUTOCAD\M2677-09A COMBINED DETAIL
locations of all services.
and is not to be used for any other purpose or by any other person
or corporation. (5) Spot heights and contours are representative of the
JFP URBAN CONSULTANTS PTY LTD accepts no responsibility for topographical terrain at time of survey; January 2017 & June 2021,
any loss or damage arising to any person or corporation who may as shown on plan.
use or rely on this plan in contravention of these terms.
(6) Spot heights are not shown on this plan. Refer to the AutoCAD
(2) The title boundaries shown on this plan were not marked at drawing for all spot heights and codes in frozen layers: X-RL,
the time of survey and have been determined from plan X-CODE & X-MARK.
dimensions only and not by field survey. The dimensions and
PROPERTY DESCRIPTION positioning of these property boundaries and any other (7) Trees shown on this plan have been located only where the
boundaries shown on this plan are not absolute and are subject to trunk diameter at breast height (DBH) is 300mm or greater. Tree
LOT 1 ON RP230931 an Identification Survey. Please contact this office for a quote or types are estimated and tree sizes are approximate only. If
TOTAL AREA 3740m² (Deed) for further advice. accurate identification of tree types is to be relied upon for any
LOT 1 ON RP849431 purpose, then all trees shown will require on site verification by a
(3) The Location of Underground services are in accordance with suitably qualified expert.
TOTAL AREA 1748m² (Deed) Australian Standard AS5488:2019, Classification of Subsurface
Utility Information (SUI). Services shown hereon have been (8) These notes form an integral part of this plan. If others use this
LOT 61 on RP69404 located where possible by field survey. If not able to be so located, information, they should be advised of its purpose and limitations.
TOTAL AREA 3184m² (Deed) services have been plotted from the records of the relevant
authorities where available. However, the information shown on (9) This plan may not be reproduced unless these notes are
LOCALITY OF NOOSAVILLE these records pertinent to services location is indicative only and included.
NOOSA SHIRE COUNCIL sometimes inadequate. The exact nature and location of these
services should be confirmed prior to construction. Contour Interval: 0.5m
NORTH: SCALE: ISSUES: TITLE: DETAILS:
JOB NUMBER: PLAN: ISSUE:
N SCALE: @ A3 1:500
BRISBANE - SUNSHINE COAST - CENTRAL QLD PLANNERS 0 5 10 15 20 25 30 35
CONTOUR & DETAIL SURVEY M2677
SHEET:
09 A
SCALE 1:500 at (A3) size
URBAN DESIGNERS
SUNSHINE COAST
Tower 1, Level 2, 55 Plaza Parade, SURVEYORS
THIS SCALE SHOWN IS ORIGINAL DRAWING SCALE - (A3 SIZE)
ALTUM PROPERTY GROUP 1 OF 1
DO NOT SCALE FROM THIS DRAWING - USE ONLY DIMENSIONS PROVIDED - IF IN DOUBT PLEASE ENQUIRE FILE:
Maroochydore, Qld 4558
P 07 5450 3900 W www.jfp.com.au ENGINEERS
LANDSCAPE ARCHITECTS
SURVEYED JFP CHECKED AJM DATUM AHD
A
99 & 101-105 EUMUNDI NOOSA ROAD M2677-09A Combined Detail.dwg
C O N S U L T A N T S JFP URBAN CONSULTANTS PTY LTD ACN 050 414 045 ORIGINAL ISSUE 06-07-2021 TLP DATE:
DRAWN TLP APPROVED AJM ORIGIN (BM) PM170215_RL12.12 ISSUE: DETAILS: DATE: INIT: NOOSAVILLE 6th July, 2021
COPYRIGHT © 2021 JFP URBAN CONSULTANTS PTY LTD. THIS DOCUMENT MAY NOT BE COPIED OR TRANSMITTED IN ANY FORM OR BY ANY MEANS IN PART OR IN WHOLE WITHOUT THE WRITTEN CONSENT OF JFP URBAN CONSULTANTS PTY LTD.
Page 25
20169 - SBSMP/4
Page 24
APPENDIX B
PROPOSED DEVELOPMENT PLANS
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 26
BLDG 04
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PROPOSED MULTIRESIDENTIAL DEVELOPMENT, — ALTUMCONSTRUCTIONS ——evstorwewzarrnom. > BT TAWBIBAE J/CKSON
issue: 27 date : 13-10-21
EUMU N DI NOOSA ROAD, NOOSAVILLE SITE PLAN LEVEL 1 GROUND x) ee eeffw—flllS
7186-DA02
tune The designs, drawings and specification are copyright and always remain the property of Blackburne Jackson Design Pty Lt.
Page 27
ee ‘te! | u : Th TTE BLDG 02 S, 511 | 512 BLDG 08) | 812 811 513 ce |S 514 J 515 2 f | BLDG 07 712 01 SITE PLAN LEVEL 2 UPPER 1:250 PROPOSED MULTIRESIDENTIAL DEVELOPMENT, EUMUNDI NOOSA ROAD, NOOSAVILLE ALTUM CONSTRUCTIONS SITE PLAN LEVEL 2 UPPER DEVELOPMENT APPROVAL 7186-DA03 oa BLICKBUINEJ/CI(SON ARCHITECTURE | LANDSCAPE | INTERIOR | PROJECT MANAGEMENT
Page 28
20169 - SBSMP/4
Page 25
APPENDIX C
NOOSA COUNCIL INTERACTIVE MAPPING DATA
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 29
Noosa Shire Council does not warrant the accuracy of information in this publication and any person using or relying 11/27/2020
upon such information does so on the basis that Noosa Shire Council shall bear no responsibility or liability
whatsoever for any errors, faults, defects or omissions in the information.
1:1500
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20169 - SBSMP/4
Page 26
APPENDIX D
NSC WATER QUALITY AND DRAINAGE CODE
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 31
Water Quality and Drainage Code
Noosa Council Plan July 2020
Performance and Acceptable Outcomes Table
Version: 2020
Performance Outcomes Acceptable Outcomes Solution1 Comments Council Use
Stormwater Drainage Design
PO1 AO1 RO1
The development and its stormwater A stormwater management plan is prepared The proposal complies. Refer to the Site
management system is planned and designed consistent with PSP6 Engineering Design Based Stormwater Management Plan
having regard to: Standards - Roads, drainage and (SBSMP) report prepared by MCE.
(a) the natural features of the site; earthworks.
(b) the need to avoid impacts and potential risks
to ecologically important areas;
(c) the likely effectiveness of erosion and
sediment control and stormwater drainage
measures during rainfall events during and
post construction; and
(d) the need to protect environmental values
and water quality of receiving waters both
during and post construction
PO2 AO2.1 RO2.1
Stormwater drainage infrastructure is planned, Stormwater drainage planning, design and All stormwater design will comply with
designed and construction is in accordance with PSP6 the PSP6 Engineering Design Standards
constructed to: Engineering Design Standards - Roads, - Roads, drainage and earthworks and
(a) incorporate allowance for increased flood drainage and earthworks and the latest the latest version of the Queensland
risk and tidal inundation through pipework as version of the Queensland Urban Drainage Urban Drainage Design Manual.
a result of cilmate change and sea level rise; Design Manual.
(b) ensure the development is adequately AO2.2 RO2.2
drained; and The stormwater drainage system connects to Refer to the SBSMP prepared by MCE
(c) ensure stormwater is managed and lawfully a lawful point of discharge in accordance for the lawful points of discharge.
discharged without altering stormwater with PSP6 Engineering Design Standards -
drainage characteristics external to the site. Roads, drainage and earthworks.
AO2.3 RO2.2
Stormwater flows discharging from the The proposal complies. Two detention
development are demonstrated to be basins will be utilised to mitigate flows
consistent with pre-development prior to discharge to the legal points of
characteristics. discharge. Refer to the SBSMP prepared
by MCE.
AO2.4
N/A
Development provides for the management
1
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N/A Not applicable to this proposal Job: 20169
Rev: 2
Site Address: 99, 101 & 105 Eumundi Noosa Road, Noosaville 13/10/2021
Page 32
Water Quality and Drainage Code
Noosa Council Plan July 2020
Performance and Acceptable Outcomes Table
Version: 2020
Performance Outcomes Acceptable Outcomes Solution1 Comments Council Use
of stormwater to incorporate appropriate
allowance for climate change impacts
(including rainfall intensity and sea level
rise), in accordance with PSP6 Engineering
Design Standards – Roads, Drainage and
Earthworks.
PO3 AO3.1
Stormwater drainage infrastructure conveys run- Stormwater drainage infrastructure meets the
off in a manner that allows roads to deliver desired standards of service for roads
N/A
desired standards of service appropriate to the functionality set out in PSP6 Engineering
local conditions and local stormwater drainage Design Standards - Roads, Drainage and
characteristics. Earthworks.
PO4 AO4.1 RO4.1
Stormwater infrastructure is compatible with The location, design and construction of Refer to RO2.1.
existing infrastructure, allows for easy access for stormwater drainage structures is in
the ongoing maintenance by Council, is cost accordance with PSP6 Engineering Design
effective across its design life. Standards - Roads, drainage and
earthworks.
AO4.2
Where infrastructure is located on private
land an easement is dedicated over the
N/A
infrastructure in accordance with PSP6
Engineering Design Standards - Roads,
drainage and earthworks.
AO4.3 RO4.3
Any alterations or repairs to infrastructure as The proposal complies.
a result of the development are made at no
cost to Council.
AO4.4 RO4.4
Development avoids stormwater inflow and The proposal complies. Stormwater will
infiltration to the sewer infrastructure be design to avoid inflow and infiltration
network. into the sewer infrastructure network.
AO4.5 RO4.5
Stormwater infrastructure is designed to The proposal complies.
minimise maintenance costs and the
1
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N/A Not applicable to this proposal Job: 20169
Rev: 2
Site Address: 99, 101 & 105 Eumundi Noosa Road, Noosaville 13/10/2021
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Water Quality and Drainage Code
Noosa Council Plan July 2020
Performance and Acceptable Outcomes Table
Version: 2020
Performance Outcomes Acceptable Outcomes Solution1 Comments Council Use
requirement for specialized equipment for
maintenance techniques.
PO5 AO5.1
Stormwater drainage infrastructure is aligned to Stormwater drainage infrastructure avoids
avoid crossing waterways, wetlands, drainage crossing waterways, wetlands drainage lines N/A
lines and ecological important areas, or where it is and ecologically important areas or follows
demonstrated this is unavoidable, disturbed areas the edge of existing disturbed areas.
are reinstated and revegetated upon completion AO5.2
of works. Stormwater drainage infrastructure avoids
crossing waterways, wetlands drainage lines N/A
and ecologically important areas or follows
the edge of existing disturbed areas.
AO5.3
Temporary vehicular crossings of waterways
must be designed and constructed to be
N/A
consistent with the current International
Erosion Control Association Best Practice
Book Series.
Stormwater quality and protection of receiving waters
PO6 AO6.1 RO6.1
Development is located, designed, constructed Stormwater runoff discharging into High The proposal complies.
and operated to protect and enhance Ecological Value waters as a result of
environmental values and water quality of development causes no increase in gross
waterways, wetlands, lakes, ground waters and pollutants, total suspended solids, total
drainage systems. phosphorous or total nitrogen compared to
a pre-development scenario.
Editor’s note: Environmental values of waters AND
and water quality objectives are prescribed in AO6.2 RO6.1
Schedule 1 of the Environmental Protection All stormwater runoff is treated to achieve The proposal complies. Two bio-retention
(Water) Policy 2009 and are identified on the maximum removal of nutrients, gross systems will be incorporated into the
State Planning Policy Interactive Mapping System pollutants and suspended solids as drainage design to achieve the target
determined by cost to efficiency ratios. (e.g. pollutant reduction loads. Refer to the
bioretention basins must be sized to SBSMP prepared by MCE.
achieve at least 80% reduction in total
suspended solids, 60% reduction in total
1
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N/A Not applicable to this proposal Job: 20169
Rev: 2
Site Address: 99, 101 & 105 Eumundi Noosa Road, Noosaville 13/10/2021
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Water Quality and Drainage Code
Noosa Council Plan July 2020
Performance and Acceptable Outcomes Table
Version: 2020
Performance Outcomes Acceptable Outcomes Solution1 Comments Council Use
phosphorous, 45% reduction in total nitrogen
and 90% reduction in gross pollutants >5mm)
OR
AO6.3
Developments achieve a minimum 3 drop
rating consistent with the Water by Design
Living Waterways Scoring Guide (Healthy
Land and Water).
N/A
Editor’s note— PSP6 Engineering Design
Standards - Roads, Drainage and
Earthworks provides guidance on stormwater
design and modelling requirements
PO7 AO7.1 RO7.1
Water quality treatment systems use natural Water quality treatment systems are The proposal complies.
processes and materials, whenever possible, and designed to be integrated into the landscape
are integrated into development to enhance consistent with the technical design guideline
biodiversity and landscape benefits published by Healthy Land and Water Water
by Design for the feature. (eg. For
Bioretention Basins: Bioretention Technical
Design Guidelines (October 2014) and for
Wetland Systems the Wetland Technical
Design Guideline (May 2017).
PO8 AO8.1
Water quality treatment infrastructure to be Detailed life cycle costing is provided for the
N/A
dedicated as public assets are proven to be entire treatment train system including
suitable for its use and of a cost replacement costs of asset parts.
effective and efficient standard AO8.2
Treatment systems dedicated as public
assets are designed to minimise
maintenance, renewal and adaption costs N/A
and the requirement for specialised
equipment, material or maintenance
techniques.
AO8.3
N/A
Vegetated stormwater management systems
1
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N/A Not applicable to this proposal Job: 20169
Rev: 2
Site Address: 99, 101 & 105 Eumundi Noosa Road, Noosaville 13/10/2021
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Water Quality and Drainage Code
Noosa Council Plan July 2020
Performance and Acceptable Outcomes Table
Version: 2020
Performance Outcomes Acceptable Outcomes Solution1 Comments Council Use
to be dedicated as public assets are
established and maintained during the
maintenance period to ensure optimal
vegetated growth and that the functional
elements of the system achieve the design
function at the end of the maintenance
period.
PO9 AO9.1 RO9.1
Treatment systems are designed to eliminate or Free draining inlets and outlets are provided The proposal complies. The proposed
minimise health, safety and aesthetic hazards, to ensure that waters do not pond for more stormwater treatment system will be
including risks associated with insect breeding, than 24 hours. design to be free draining.
odour and public safety. AO9.2 RO9.2
Developments are designed to eliminate A safety fence will be installed around
retaining walls in excess of 0.8m for any the perimeter of the basin and a lockable
water quality treatment device. gate located at the maintenance access
ramp to prevent public access. In
addition, education signage will be
installed at each basin location to inform
the residences of the function each basin
provides.
Hydraulic and Waterway Stability
PO10 AO10 RO10
Development prevents increased bed and bank The development is designed to: The proposal complies. Refer to the
erosion and sedimentation in receiving waterways (a) limit the peak 1 year ARI event discharge SBSMP prepared by MCE.
by avoiding changes in low rate, peak flow run-off within the receiving waterway to the pre-
and flow duration. development peak 1 year discharge;
(b) maximise pervious areas by using
pervious alternatives for otherwise
impervious areas wherever possible;
(c) provide for capture and reuse of
stormwater for non-potable purposes for
gardening, toilet flushing, laundry and hot
water supply uses;
(d) incorporate appropriate detention
features; and
1
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N/A Not applicable to this proposal Job: 20169
Rev: 2
Site Address: 99, 101 & 105 Eumundi Noosa Road, Noosaville 13/10/2021
Page 36
Water Quality and Drainage Code
Noosa Council Plan July 2020
Performance and Acceptable Outcomes Table
Version: 2020
Performance Outcomes Acceptable Outcomes Solution1 Comments Council Use
(e) incorporate natural channel design
principles.
Editor’s note: The Sustainable Building
Design Code includes requirements for
stormwater capture and reuse.
PO11 AO11.1
Water sensitive urban design principles are The design and construction of a natural
applied to achieve multifunctional design of channel or natural channel rehabilitation
waterways, wetlands and drainage lines that works are in accordance with the Natural N/A
provide for: Channel Design Guidelines (Brisbane City
(a) stormwater conveyance that uses natural Council) having regard to local topography,
channel design; geology and geomorphology.
(b) protection of landscape features and AO11.2
ecological important areas including Landscape features, plant species and
terrestrial and aquatic habitat; habitat types used in stormwater conveyance N/A
(c) aesthetic and passive recreation values; channels are complementary to the local
(d) flood management and conveyance of context and natural waterways
external catchment stormwater through the AO11.3
development; Bank and bed stability and planting densities
(e) landscaping that incorporates local native N/A
result in a stable channel over the long term
species; and and minimal potential for pest plant species.
(f) bed and bank stability AO11.4
Water Sensitive Design measures are
incorporated into the development, as
detailed in the document Water Sensitive
N/A
Designs small improvements, new ideas,
concepts and sketch designs for stormwater
filtration systems (Healthy Waterways Water
by Design).
AO11.5
Floodplain management is designed in
accordance with the Framework for the
N/A
Integration of Flood and Stormwater
Management into Open Space published by
Healthy Waterways Water by Design
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N/A Not applicable to this proposal Job: 20169
Rev: 2
Site Address: 99, 101 & 105 Eumundi Noosa Road, Noosaville 13/10/2021
Page 37
Water Quality and Drainage Code
Noosa Council Plan July 2020
Performance and Acceptable Outcomes Table
Version: 2020
Performance Outcomes Acceptable Outcomes Solution1 Comments Council Use
(version current at the time of development
application).
PO12 AO12.1
Development protects in-stream ecology by Where run-off from or within the site passes
maintaining pre development low flow discharge through or drains to natural channels,
regimes and maintaining fish waterways or wetlands, development
passages. protects in steam ecology by maintaining
N/A
pre-development low flow discharge regimes
in accordance with the frequent flow
management objectives in PSP6 Engineering
Design Standards - Roads, drainage and
earthworks
AO12.2
Instream structures such as roads, bridges,
culverts, and other stormwater infrastructure
N/A
do not cause barriers to fish passage and
facilitate the movement of terrestrial and
aquatic fauna along waterway corridors
AO12.3
Benthic substrate retains a continuous grade
N/A
with the direction of flow consistent with the
natural bed profile.
PO13 AO13.1
Development is designed and constructed to The location and form of stormwater
maintain surface and ground water balances that discharge points do not alter the pre- N/A
sustain the environmental values of water development hydrology of receiving surface
dependent ecosystems, including downstream water or groundwater.
aquatic, riparian, wetland and terrestrial AO13.2
ecosystems. Developments located on groundwater
recharge or discharge areas are designed
and managed in accordance with a
groundwater recharge and discharge N/A
management plan prepared by a suitably
experienced and qualified groundwater
hydrologist. The groundwater recharge or
discharge must demonstrate that the
1
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N/A Not applicable to this proposal Job: 20169
Rev: 2
Site Address: 99, 101 & 105 Eumundi Noosa Road, Noosaville 13/10/2021
Page 38
Water Quality and Drainage Code
Noosa Council Plan July 2020
Performance and Acceptable Outcomes Table
Version: 2020
Performance Outcomes Acceptable Outcomes Solution1 Comments Council Use
development does not affect groundwater
balances beyond the property boundaries
Editor's Note— PSP6 Engineering Design
Standards - Roads, drainage and earthworks
provides guidance on prepare a groundwater
recharge and discharge plan.
Construction and establishment of stormwater management systems
PO14 AO14.1 RO14.1
Construction methods provide for appropriate An erosion and sediment control plan An Erosion and Sedimentation Control
controls to avoid entry and transport of litter, prepared in accordance with the International Plan shall be prepared (prior to
sediment, and associated prescribed water Erosion Control Association Best Practice commencement of construction) and
contaminants into receiving waters. Books demonstrates that the capture and maintained for the management of the
release of stormwater achieves the design sediment laden stormwater during the
Editor's note— Water contaminants are objectives listed in Table A: Construction construction phase in accordance with
prescribed in the phase – stormwater management design IECAs Best Practice guidelines.
Environmental Protection Act 1994 objectives of the State Planning Policy
(Appendix 2).
Editor’s note— PSP6 Engineering Design
Standards - Roads, drainage and earthworks
provides guidance on requirements for
preparing an Erosion Management Plan.
AO14.2 RO14.2
Construction works are designed and Unnecessary disturbance to soil shall be
managed to restrict the extent of clearing and avoided and all soil surfaces shall remain
soil exposure to the minimum necessary for stabilized.
access, and safe construction at any one
time
AO14.3 RO14.3
For buildings: The proposal complies. Refer to RO14.1.
(a) upstream runoff is diverted around the
construction site;
(b) sediment barriers are provided
downslope of disturbed areas to prevent
1
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N/A Not applicable to this proposal Job: 20169
Rev: 2
Site Address: 99, 101 & 105 Eumundi Noosa Road, Noosaville 13/10/2021
Page 39
Water Quality and Drainage Code
Noosa Council Plan July 2020
Performance and Acceptable Outcomes Table
Version: 2020
Performance Outcomes Acceptable Outcomes Solution1 Comments Council Use
sediment washing into gutters, drains
and waterways , wetlands or drainage
lines either on or off the site; and
(c) temporary or permanent downpipes are
connected to the stormwater system
before laying the roof; or
(d) localised erosion is avoided by directing
flow from downpipes over non-erosive
areas.
AO14.4 RO14.4
Chemical flocculants used as part of an The proposal complies. Refer to RO14.1.
erosion and sediment control plan do not
harm the environmental values within
receiving waters.
AO14.5 RO14.5
Appropriately sized litter containment areas, The proposal complies. Refer to RO14.1.
with provision for sorting recyclables are
provided for the type of litter expected to be
generated onsite.
Wastewater management and effluent disposal
PO15 AO15
Development does not discharge wastewater Wastewater (non-sewage) generated from
unless it can be demonstrated to not compromise the development is collected and contained
environmental values of waters and water quality on-site, and is;
objectives. (a) lawfully disposed to sewer; or
(b) transferred off-site for treatment/disposal
Editor’s Note—Environmental values of waters to an appropriately
and water quality objectives are prescribed in licenced facility; N/A
Schedule 1 of the Environmental Protection (c) reused on-site in a closed-cycle irrigation
(Water) Policy 2009. scheme, industrial processes, washing or
cleaning or other purpose; or
(d) treated to meet the drinking water supply
environmental values prior to release.
Editor’s Note—The Plumbing and Drainage
1
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N/A Not applicable to this proposal Job: 20169
Rev: 2
Site Address: 99, 101 & 105 Eumundi Noosa Road, Noosaville 13/10/2021
Page 40
Water Quality and Drainage Code
Noosa Council Plan July 2020
Performance and Acceptable Outcomes Table
Version: 2020
Performance Outcomes Acceptable Outcomes Solution1 Comments Council Use
Act 2003 sets out requirements for
wastewater management.
PO16 AO16
On-site effluent treatment and disposal systems An onsite effluent system and disposal area
are designed, constructed and managed to not is:
compromise the environmental values of waters (a) not located on a slope greater than 1 in
and water quality objectives. (10%);
(b) not located at or below the 1% annual
exceedance probability (AEP flood
event);
(c) not located within a riparian buffer area
mapped on a Biodiversity, Waterways
and Wetlands Overlay Map; and
(d) setback 400 metres minimum from the
full supply level of Lake Macdonald.
Editor’s Note—The Plumbing and Drainage
Act 2003 sets out requirements for on-site
effluent treatment and disposal. The N/A
Queensland Plumbing and Wastewater Code
and associated
guidelines are used to confirm the suitability
of each site to accommodate an on-site
sewerage facility; or where a centrally
located group collection treatment system is
proposed, confirmation as to the suitability of
the designated site to accommodate the
onsite sewerage facility. Additionally, where
the combined total peak design capacity of
effluent treatment is less than 21 equivalent
persons, the design of the system achieves a
low to medium risk classification in
accordance with Seqwater’s Land Use Risk
Tool for onsite sewerage facilities
1
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N/A Not applicable to this proposal Job: 20169
Rev: 2
Site Address: 99, 101 & 105 Eumundi Noosa Road, Noosaville 13/10/2021
Page 41
20169 - SBSMP/4
Page 27
APPENDIX E
STORMWATER QUANTITY CALCULATIONS
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 42
Rational Method Peak Flow Calculations
Job No: 20169 MORGAN CONSULTING
Job Type: Proposed Townhouse Development ENGINEERS PTY LTD
Address: 99, 101 & 105 Eumundi Noosa Road 1 GREAT GEORGE STREET
Council: Noosa PADDINGTON QLD 4064
IFD Data: 26.4125 (S),153.0375 (E) Minor Storm: Q10 Designed: DY
1
I10 74mm/hr Major Storm: Q100 Checked: HM
Pre-Development A Pre-Development B Pre-Development C
Time of Concentration
Standard Inlet Time Standard Inlet Time Standard Inlet Time
Standard Inlet Time mins Standard Inlet Time mins Standard Inlet Time mins
Sheet Flow (Friends Equation) Sheet Flow (Friends Equation) Sheet Flow (Friends Equation)
Sheet flow length (L) 27.7 m Sheet flow length (L) 77 m Sheet flow length (L) 34.44 m
roughness (n) 0.035 short grass roughness (n) 0.035 short grass roughness (n) 0.035 short grass
Fall of NSL 1.478 m Fall of NSL 3.248 m Fall of NSL 0.644 m
Slope of Surface (S) 5.3 % Slope of Surface (S) 4.2 % Slope of Surface (S) 1.9 %
total 8.1 mins total 11.9 mins total 10.8 mins
Concentrated Overland Flow Concentrated Overland Flow Concentrated Overland Flow
Flow distance m Flow distance m Flow distance m
velocity 1.5 m/s velocity 1.5 m/s velocity 1.5 m/s
mins 0.0 mins mins 0.0 mins mins 0.0 mins
Surface type multiplier 3.0 Surface type multiplier 3.0 Surface type multiplier 3.0
total 0.0 mins total 0.0 mins total 0.0 mins
Total tc 8.1 mins Total tc 11.9 mins Total tc 10.8 mins
Runoff Volume Calculations
Name Area (ha) tc fi C10 Name Area (ha) tc fi C10 Name Area (ha) tc fi C10
0.265 0.18 0.74 0.467 0.19 0.74 0.136 0.55 0.79
Total 0.265 8.1 0.74 Total 0.467 11.9 0.74 Total 0.136 10.8 0.79
Frequency Frequency Frequency
ARI Cy Iy Qy ARI Cy Iy Qy ARI Cy Iy Qy
Factor A (Ha) Factor A (Ha) Factor A (Ha)
(years) (Fy*C10) (mm/h) (m3/s) (years) (Fy*C10) (mm/h) (m3/s) (years) (Fy*C10) (mm/h) (m3/s)
(Fy) (Fy) (Fy)
3 mth 0.024 3 mth 0.036 3 mth 0.012
1 0.800 0.589 110 0.265 0.048 1 0.800 0.590 95 0.467 0.073 1 0.800 0.633 99 0.136 0.024
2 0.850 0.626 124 0.265 0.057 2 0.850 0.627 107 0.467 0.087 2 0.850 0.673 111 0.136 0.028
5 0.950 0.699 168 0.265 0.086 5 0.950 0.701 145 0.467 0.132 5 0.950 0.752 151 0.136 0.043
10 1.000 0.736 197 0.265 0.107 10 1.000 0.738 169 0.467 0.162 10 1.000 0.791 176 0.136 0.053
20 1.050 0.773 224 0.265 0.127 20 1.050 0.775 192 0.467 0.193 20 1.050 0.831 199 0.136 0.063
50 1.150 0.846 259 0.265 0.162 50 1.150 0.849 221 0.467 0.243 50 1.150 0.910 230 0.136 0.079
100 1.200 0.883 286 0.265 0.186 100 1.200 0.886 242 0.467 0.278 100 1.200 0.950 252 0.136 0.090
Page 1 of 1 10/08/2021
Page 43
Rational Method Peak Flow Calculations
Job No: 20169 MORGAN CONSULTING
Job Type: Proposed Townhouse Development ENGINEERS PTY LTD
Address: 99, 101 & 105 Eumundi Noosa Road 1 GREAT GEORGE STREET
Council: Noosa PADDINGTON QLD 4064
IFD Data: 26.4125 (S),153.0375 (E) Minor Storm: Q10 Designed: DY
1
I10 74mm/hr Major Storm: Q100 Checked: HM
Post-Development A Post-Development B Post-Development C
Time of Concentration
Standard Inlet Time Standard Inlet Time Standard Inlet Time
Standard Inlet Time 5 mins Standard Inlet Time 5 mins Standard Inlet Time 5 mins
Pipe Flow m Pipe Flow m Pipe Flow m
Flow distance 46 Flow distance 90 Flow distance
Fall of channel m Fall of channel m Fall of channel m
Flow Velocity 2.5 % Flow Velocity 2.5 % Flow Velocity 2.5 %
total 0.3 mins total 0.6 mins total 0.0 mins
Concentrated Overland Flow Concentrated Overland Flow Concentrated Overland Flow
Flow distance m Flow distance m Flow distance m
velocity 1.5 m/s velocity 1.5 m/s velocity 1.5 m/s
mins 0.0 mins mins 0.0 mins mins 0.0 mins
Surface type multiplier 3.0 Surface type multiplier 3.0 Surface type multiplier 3.0
total 0.0 mins total 0.0 mins total 0.0 mins
Total tc 5.3 mins Total tc 5.6 mins Total tc 5.0 mins
Runoff Volume Calculations
Name Area (ha) tc fi C10 Name Area (ha) tc fi C10 Name Area (ha) tc fi C10
0.376 0.70 0.84 0.4480 0.64 0.83 0.0440 1 0.90
Total 0.376 5.3 0.84 Total 0.448 5.6 0.83 Total 0.044 5.0 0.90
Frequency Frequency Frequency
ARI Cy Iy Qy ARI Cy Iy Qy ARI Cy Iy Qy
Factor A (Ha) Factor A (Ha) Factor A (Ha)
(years) (Fy*C10) (mm/h) (m3/s) (years) (Fy*C10) (mm/h) (m3/s) (years) (Fy*C10) (mm/h) (m3/s)
(Fy) (Fy) (Fy)
3 mth 0.043 3 mth 0.050 3 mth 0.005
1 0.800 0.672 123 0.376 0.086 1 0.800 0.662 121 0.448 0.100 1 0.800 0.721 124 0.044 0.011
2 0.850 0.714 138 0.376 0.103 2 0.850 0.704 137 0.448 0.120 2 0.850 0.766 140 0.044 0.013
5 0.950 0.798 189 0.376 0.157 5 0.950 0.787 187 0.448 0.183 5 0.950 0.856 191 0.044 0.020
10 1.000 0.840 222 0.376 0.195 10 1.000 0.828 220 0.448 0.226 10 1.000 0.901 225 0.044 0.025
20 1.050 0.882 254 0.376 0.234 20 1.050 0.869 251 0.448 0.271 20 1.050 0.946 257 0.044 0.030
50 1.150 0.966 295 0.376 0.298 50 1.150 0.952 291 0.448 0.345 50 1.150 1.000 299 0.044 0.037
100 1.200 1.000 327 0.376 0.341 100 1.200 0.994 322 0.448 0.398 100 1.200 1.000 331 0.044 0.040
Page 1 of 1 10/08/2021
Page 44
20169 - SBSMP/4
Page 28
APPENDIX F
CONCEPT SITE LEVELS AND DRAINAGE PLAN
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 45
P: (07) 3369 8411
F: (07) 3369 1893
E : [email protected]
© Morgan Consulting Engineers
This drawing is not to be copied,
retai ned or used without the
permission of the copyright holder.
1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4
Page 46
P: (07) 3369 8411
F: (07) 3369 1893
E : [email protected]
© Morgan Consulting Engineers
This drawing is not to be copied,
retai ned or used without the
permission of the copyright holder.
1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4
Page 47
P: (07) 3369 8411
F: (07) 3369 1893
E : [email protected]
© Morgan Consulting Engineers
This drawing is not to be copied,
retai ned or used without the
permission of the copyright holder.
1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4
Page 48
P: (07) 3369 8411
F: (07) 3369 1893
E : [email protected]
© Morgan Consulting Engineers
This drawing is not to be copied,
retai ned or used without the
permission of the copyright holder.
1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4
Page 49
³ ³ ³ ³ ³ ³
³ ³
P: (07) 3369 8411
F: (07) 3369 1893
E : [email protected]
© Morgan Consulting Engineers
This drawing is not to be copied,
retai ned or used without the
permission of the copyright holder.
1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4
Page 50
P: (07) 3369 8411
F: (07) 3369 1893
E : [email protected]
© Morgan Consulting Engineers
This drawing is not to be copied,
retai ned or used without the
permission of the copyright holder.
1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4
Page 51
P: (07) 3369 8411
F: (07) 3369 1893
E : [email protected]
© Morgan Consulting Engineers
This drawing is not to be copied,
reta ined o r used wi tho ut the
permission of the copyright holder.
1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4
Page 52
P: (07) 3369 8411
F: (07) 3369 1893
E : [email protected]
© Morgan Consulting Engineers
This drawing is not to be copied,
reta ined o r used wi tho ut the
permission of the copyright holder.
1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4
Page 53
20169 - SBSMP/4
Page 29
APPENDIX G
BOM IFD DATA
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 54
Copyright Commonwealth of Australia 2016 Bureau of Meteorology (ABN 92 637 533 532)
IFD Design Rainfall Intensity (mm/h)
Issued: 27-Nov-20
Location Label:
Requested Latitude
coordinate: -26.40668 Longitude 153.0497
Nearest gridLatitude
cell: 26.4125 (S) Longitude 153.0375 (E)
Annual Exceedance Probability (AEP)
Duration Duration in min 63.20% 50% 20% 10% 5% 2% 1%
1 min 1 170 193 262 306 349 403 444
2 min 2 144 164 227 270 312 369 414
3 min 3 136 154 212 252 290 342 381
4 min 4 129 147 201 237 272 319 354
5 min 5 124 140 191 225 257 299 331
10 min 10 101 114 154 180 204 235 258
15 min 15 85.7 96.9 131 152 173 199 217
20 min 20 74.8 84.6 114 133 151 174 191
25 min 25 66.7 75.4 102 119 136 157 172
30 min 30 60.4 68.3 92.6 109 124 143 158
45 min 45 47.7 54.2 74 87.2 100 117 129
1 hour 60 40.1 45.6 62.7 74.3 85.5 100 112
1.5 hour 90 31.1 35.5 49.5 59 68.4 81 90.7
2 hour 120 26 29.8 41.8 50.1 58.3 69.5 78.1
3 hour 180 20.2 23.2 33 39.8 46.7 56 63.2
4.5 hour 270 15.7 18.2 26.2 31.8 37.4 45.1 51.2
6 hour 360 13.2 15.3 22.2 27.1 32 38.7 44
9 hour 540 10.3 12 17.7 21.6 25.7 31.2 35.6
12 hour 720 8.68 10.2 15 18.4 21.9 26.7 30.5
18 hour 1080 6.78 7.96 11.8 14.6 17.5 21.4 24.5
24 hour 1440 5.67 6.65 9.93 12.3 14.8 18.2 20.9
30 hour 1800 4.91 5.76 8.63 10.7 12.9 15.9 18.4
36 hour 2160 4.35 5.11 7.66 9.55 11.5 14.3 16.5
48 hour 2880 3.57 4.19 6.3 7.88 9.55 11.9 13.9
72 hour 4320 2.66 3.12 4.7 5.91 7.2 9.05 10.6
96 hour 5760 2.14 2.5 3.77 4.75 5.8 7.33 8.6
120 hour 7200 1.8 2.1 3.16 3.98 4.86 6.15 7.23
144 hour 8640 1.55 1.82 2.72 3.43 4.19 5.29 6.2
168 hour 10080 1.37 1.6 2.4 3.02 3.68 4.62 5.41
[OCR of page images]
Copyright Commonwealth of Australia 2016 Bureau of Meteorology (ABN 92 637 533 532)
IFD Design Rainfall Intensity (mm/h)
Issued: 27-Nov-20
Location Label:
Requested Latitude
Nearest griLatitude
Annual Exceedance Probability (AEP)
63.20%
Duration Duration in min
1 min 1
2 min 2
3 min 3
4 min 4
5 min 5
10 min 10
15 min 15
20 min 20
25 min 25
30 min 30
45 min 45
1 hour 60
1.5 hour 90
2 hour 120
3 hour 180
4.5 hour 270
6 hour 360
9 hour 540
12 hour 720
18 hour 1080
24 hour 1440
30 hour 1800
36 hour 2160
48 hour 2880
72 hour 4320
96 hour 5760
120 hour 7200
144 hour 8640
168 hour 10080
26.4125 (S)
170
144
136
129
124
101
85.7
74.8
66.7
60.4
47.7
40.1
31.1
26
20.2
15.7
13.2
10.3
8.68
6.78
5.67
4.91
4.35
3.57
2.66
2.14
1.8
1.55
1.37
-26.40668 Longitude
Longitude 153.0375 (E)
50%
193
164
154
147
140
114
96.9
84.6
75.4
68.3
54.2
45.6
35.5
29.8
23.2
18.2
15.3
12
10.2
7.96
6.65
5.76
5.11
4.19
3.12
2.5
2.1
1.82
1.6
153.0497
20%
262
227
212
201
191
154
131
114
102
92.6
74
62.7
49.5
41.8
33
26.2
22.2
17.7
15
11.8
9.93
8.63
7.66
6.3
4.7
3.77
3.16
2.72
2.4
10%
306
270
252
237
225
180
152
133
119
109
87.2
74.3
59
50.1
39.8
31.8
27.1
21.6
18.4
14.6
12.3
10.7
9.55
7.88
5.91
4.75
3.98
3.43
3.02
5%
349
312
290
272
257
204
173
151
136
124
100
85.5
68.4
58.3
46.7
37.4
32
25.7
21.9
17.5
14.8
12.9
11.5
9.55
7.2
5.8
4.86
4.19
3.68
2%
403
369
342
319
299
235
199
174
157
143
117
100
81
69.5
56
45.1
38.7
31.2
26.7
21.4
18.2
15.9
14.3
11.9
9.05
7.33
6.15
5.29
4.62
1%
444
414
381
354
331
258
217
191
172
158
129
112
90.7
78.1
63.2
51.2
44
35.6
30.5
24.5
20.9
18.4
16.5
13.9
10.6
8.6
7.23
6.2
5.41
Page 55
20169 - SBSMP/4
Page 30
APPENDIX H
XPSTORM PRE DEVELOPMENT RESULTS
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
Page 56
1 INNOVYZE ENSEMBLE STATISTICS UTILITY 2 (c) Innovyze 2020 3 4 Summary information: 5 6 Total No. of Ensembles: 63 7 No. of Storms per ensemble: 10 8 No. of AEP Bands: 7 9 Object Name: Pre Dev A to LPD 10 Result type: Max Flow 11 12 13 Results: 14 15 16 AEP: 1% - Max Flow (m^3/s) 17 *===============================================================================================================================================================================================================* 18 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 19 *===============================================================================================================================================================================================================* 20 | ECN_1pct_10min 0.1168 0.1129 0.1177 0.1001 0.1199 0.0985 0.1160 0.1020 0.1255 0.1119 0.1121 0.0086 0.1144 | 21 | ECN_1pct_15min 0.1382 0.1430 0.1179 0.1232 0.1565 0.1528 0.1339 0.1676 0.1569 0.1306 0.1420 0.0153 0.1406 | 22 | ECN_1pct_1_5hr 0.0988 0.1165 0.1208 0.0991 0.1223 0.1198 0.1150 0.1211 0.1086 0.1205 0.1143 0.0085 0.1182 | 23 | ECN_1pct_1hr 0.1826 0.1483 0.1095 0.1257 0.0926 0.1444 0.1008 0.1133 0.1245 0.1054 0.1247 0.0258 0.1189 | 24 | ECN_1pct_20min 0.1435 0.1950 0.1205 0.1151 0.1278 0.1414 0.1221 0.1378 0.1360 0.1592 0.1398 0.0221 0.1369 | 25 | ECN_1pct_25min 0.1309 0.1849 0.1345 0.1461 0.1457 0.1339 0.1281 0.1540 0.1308 0.1681 0.1457 0.0177 0.1401 | 26 | ECN_1pct_2hr 0.1317 0.0976 0.0978 0.1174 0.1156 0.1073 0.0825 0.0875 0.1002 0.1265 0.1064 0.0154 0.1037 | 27 | ECN_1pct_30min 0.1486 0.1342 0.1902 0.1200 0.1236 0.1267 0.1360 0.1404 0.1510 0.1352 0.1406 0.0190 0.1356 | 28 | ECN_1pct_45min 0.1933 0.1726 0.1201 0.1579 0.1385 0.1083 0.1206 0.1474 0.0974 0.1354 0.1391 0.0281 0.1369 | 29 *===============================================================================================================================================================================================================* 30 | CRITICAL DURATION : The critical duration for the 1% AEP is the ensemble ECN_1pct_15min. | 31 | The median pattern for this ensemble is storm 2 (storm name : ECN_1pct_15min_2). | 32 | The pattern with the greatest <Max Flow> for this ensemble is storm 8 (storm name : ECN_1pct_15min_8). | 33 *===============================================================================================================================================================================================================* 34 35 36 AEP: 10% - Max Flow (m^3/s) 37 *===============================================================================================================================================================================================================* 38 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 39 *===============================================================================================================================================================================================================* 40 | ECN_10pct_10min 0.0330 0.0339 0.0304 0.0346 0.0388 0.0355 0.0428 0.0380 0.0341 0.0465 0.0368 0.0046 0.0351 | 41 | ECN_10pct_15min 0.0566 0.0633 0.0658 0.0713 0.0617 0.0638 0.0636 0.0635 0.0742 0.0686 0.0652 0.0048 0.0637 | 42 | ECN_10pct_1_5hr 0.1022 0.0640 0.0941 0.0526 0.0703 0.0815 0.0698 0.0525 0.0589 0.0802 0.0726 0.0160 0.0700 | 43 | ECN_10pct_1hr 0.1088 0.0675 0.0652 0.0613 0.0615 0.0803 0.0779 0.0824 0.0613 0.1177 0.0784 0.0191 0.0727 | 44 | ECN_10pct_20min 0.0730 0.0694 0.0799 0.0950 0.0766 0.0897 0.0849 0.1065 0.0983 0.0787 0.0852 0.0113 0.0824 | 45 | ECN_10pct_25min 0.0760 0.1226 0.0749 0.0723 0.0633 0.1059 0.0791 0.0790 0.0668 0.1107 0.0851 0.0193 0.0775 | 46 | ECN_10pct_2hr 0.0851 0.0559 0.0737 0.1064 0.0756 0.0620 0.0800 0.0582 0.0801 0.0693 0.0746 0.0141 0.0747 | 47 | ECN_10pct_30min 0.0684 0.0600 0.1203 0.0804 0.0762 0.0754 0.1055 0.0810 0.0963 0.1085 0.0872 0.0185 0.0807 | 48 | ECN_10pct_45min 0.0796 0.0728 0.0705 0.0830 0.0864 0.0820 0.0835 0.0627 0.1165 0.1094 0.0846 0.0158 0.0825 | 49 *===============================================================================================================================================================================================================* 50 | CRITICAL DURATION : The critical duration for the 10% AEP is the ensemble ECN_10pct_45min. | 51 | The median pattern for this ensemble is storm 4 (storm name : ECN_10pct_45min_4). | 52 | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_10pct_45min_9). | 53 *===============================================================================================================================================================================================================* 54 55 56 AEP: 2% - Max Flow (m^3/s) 57 *===============================================================================================================================================================================================================* 58 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 59 *===============================================================================================================================================================================================================* 60 | ECN_2pct_10min 0.0813 0.0806 0.0821 0.0892 0.0855 0.0878 0.0827 0.0908 0.0852 0.0764 0.0842 0.0042 0.0840 | 61 | ECN_2pct_15min 0.1135 0.1288 0.1002 0.1114 0.1276 0.1291 0.1158 0.1357 0.1333 0.1129 0.1208 0.0110 0.1217 | 62 | ECN_2pct_1_5hr 0.0855 0.1026 0.1050 0.0879 0.1084 0.1064 0.0993 0.0937 0.0963 0.1068 0.0992 0.0077 0.1010 | 63 | ECN_2pct_1hr 0.1616 0.1317 0.0955 0.1117 0.0825 0.1277 0.0895 0.0914 0.1107 0.0836 0.1086 0.0242 0.1031 | 64 | ECN_2pct_20min 0.1268 0.1726 0.1037 0.1024 0.1130 0.1186 0.1106 0.1236 0.1137 0.1422 0.1227 0.0200 0.1162 | 65 | ECN_2pct_25min 0.1162 0.1649 0.1062 0.1291 0.1244 0.1214 0.1161 0.1391 0.1185 0.1520 0.1288 0.0172 0.1229 | 66 | ECN_2pct_2hr 0.1161 0.0825 0.0865 0.1037 0.1027 0.0950 0.0732 0.0777 0.0887 0.1068 0.0933 0.0132 0.0919 | 67 | ECN_2pct_30min 0.1334 0.1209 0.1716 0.1084 0.0981 0.0856 0.1231 0.1269 0.1364 0.1200 0.1224 0.0222 0.1220 | 68 | ECN_2pct_45min 0.1728 0.1484 0.1071 0.1415 0.1241 0.0956 0.1061 0.1193 0.0876 0.1122 0.1215 0.0247 0.1157 | 69 *===============================================================================================================================================================================================================* 70 | CRITICAL DURATION : The critical duration for the 2% AEP is the ensemble ECN_2pct_25min. | 71 | The median pattern for this ensemble is storm 5 (storm name : ECN_2pct_25min_5). | 72 | The pattern with the greatest <Max Flow> for this ensemble is storm 2 (storm name : ECN_2pct_25min_2). | 73 *===============================================================================================================================================================================================================* 74 75 76 AEP: 20% - Max Flow (m^3/s) 77 *===============================================================================================================================================================================================================* 78 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 79 *===============================================================================================================================================================================================================* 80 | ECN_20pct_10min 0.0242 0.0255 0.0254 0.0288 0.0234 0.0243 0.0253 0.0262 0.0270 0.0239 0.0254 0.0015 0.0254 | 81 | ECN_20pct_15min 0.0372 0.0366 0.0394 0.0340 0.0380 0.0362 0.0399 0.0430 0.0434 0.0493 0.0397 0.0042 0.0387 | [OCR of page images] INNOVYZE ENSEMBLE STATISTICS UTILITY (c) Innovyze 2020 Summary information: 6 Total No. of Ensembles: 63 7 No. of Storms per ensemble: 10 8 No. of AEP Bands: 7 9 Object Name: Pre Dev A to LPD 0 Result type: Max Flow 2 13. Results: AEP: 1% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_lpcet_10min 0.1168 0.1129 0.1177 0.1001 0.1199 0.0985 0.1160 0.1020 0.1255 0.1119 0.1121 0.0086 0.1144 ECN_lpet_15min 0.1382 0.1430 0.1179 0.1232 0.1565 0.1528 0.1339 0.1676 0.1569 0.1306 0.1420 0.0153 0.1406 ECN_lpet_1_Shr 0.0988 0.1165 0.1208 0.0991 0.1223 0.1198 0.1150 0.1211 0.1086 0.1205 0.1143 0.0085 0.1182 ECN_lp¢et_lhr 0.1826 0.1483 0.1095 0.1257 0.0926 0.1444 0.1008 0.1133 0.1245 0.1054 0.1247 0.0258 0.1189 ECN_lpet_20min 0.1435 0.1950 0.1205 0.1151 0.1278 0.1414 0.1221 0.1378 0.1360 0.1592 0.1398 0.0221 0.1369 ECN_lpet_25min 0.1309 0.1849 0.1345 0.1461 0.1457 0.1339 0.1281 0.1540 0.1308 0.1681 0.1457 0.0177 0.1401 ECN_lpcet_2hr 0.1317 0.0976 0.0978 0.1174 0.1156 0.1073 0.0825 0.0875 0.1002 0.1265 0.1064 0.0154 0.1037 ECN_lpet_30min 0.1486 0.1342 0.1902 0.1200 0.1236 0.1267 0.1360 0.1404 0.1510 0.1352 0.1406 0.0190 0.1356 ECN_lpet_45min 0.1933 0.1726 0.1201 0.1579 0.1385 0.1083 0.1206 0.1474 0.0974 0.1354 0.1391 0.0281 0.1369 CRITICAL DURATION : The critical duration for the 1% AEP is the ensemble ECN_lpct_15min. The median pattern for this ensemble is storm 2 (storm name : ECN_Ipct_15min_2). The pattern with the greatest <Max Flow> for this ensemble is storm 8 (storm name : ECN_lpct_15min_8). AEP: 10% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_10pet_10min 0.0330 0.0339 0.0304 0.0346 0.0388 0.0355 0.0428 0.0380 0.0341 0.0465 0.0368 0.0046 0.0351 ECN_10pet_15min 0.0566 0.0633 0.0658 0.0713 0.0617 0.0638 0.0636 0.0635 0.0742 0.0686 0.0652 0.0048 0.0637 ECN_10pet_1_Shr 0.1022 0.0640 0.0941 0.0526 0.0703 0.0815 0.0698 0.0525 0.0589 0.0802 0.0726 0.0160 0.0700 ECN_10pet_1hr 0.1088 0.0675 0.0652 0.0613 0.0615 0.0803 0.0779 0.0824 0.0613 0.1177 0.0784 0.0191 0.0727 ECN_10pet_20min 0.0730 0.0694 0.0799 0.0950 0.0766 0.0897 0.0849 0.1065 0.0983 0.0787 0.0852 0.0113 0.0824 ECN_10pet_25min 0.0760 0.1226 0.0749 0.0723 0.0633 0.1059 0.0791 0.0790 0.0668 0.1107 0.0851 0.0193 0.0775 ECN_10pet_2hr 0.0851 0.0559 0.0737 0.1064 0.0756 0.0620 0.0800 0.0582 0.0801 0.0693 0.0746 0.0141 0.0747 ECN_10pet_30min 0.0684 0.0600 0.1203 0.0804 0.0762 0.0754 0.1055 0.0810 0.0963 0.1085 0.0872 0.0185 0.0807 ECN_10pet_45min 0.0796 0.0728 0.0705 0.0830 0.0864 0.0820 0.0835 0.0627 0.1165 0.1094 0.0846 0.0158 0.0825 CRITICAL DURATION : The critical duration for the 10% AEP is the ensemble ECN_1l0pct_45min. The median pattern for this ensemble is storm 4 (storm name : ECN_10pct_45min_4). The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_10pct_45min_9). AEP: 2% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_2pet_10min 0.0813 0.0806 0.0821 0.0892 0.0855 0.0878 0.0827 0.0908 0.0852 0.0764 0.0842 0.0042 0.0840 ECN_2pet_15min 0.1135 0.1288 0.1002 0.1114 0.1276 0.1291 0.1158 0.1357 0.1333 0.1129 0.1208 0.0110 0.1217 ECN_2pet_1_Shr 0.0855 0.1026 0.1050 0.0879 0.1084 0.1064 0.0993 0.0937 0.0963 0.1068 0.0992 0.0077 0.1010 ECN_2pet_lhr 0.1616 0.1317 0.0955 0.1117 0.0825 0.1277 0.0895 0.0914 0.1107 0.0836 0.1086 0.0242 0.1031 ECN_2pet_20min 0.1268 0.1726 0.1037 0.1024 0.1130 0.1186 0.1106 0.1236 0.1137 0.1422 0.1227 0.0200 0.1162 ECN_2pet_25min 0.1162 0.1649 0.1062 0.1291 0.1244 0.1214 0.1161 0.1391 0.1185 0.1520 0.1288 0.0172 0.1229 ECN_2pcet_2hr 0.1161 0.0825 0.0865 0.1037 0.1027 0.0950 0.0732 0.0777 0.0887 0.1068 0.0933 0.0132 0.0919 ECN_2pet_30min 0.1334 0.1209 0.1716 0.1084 0.0981 0.0856 0.1231 0.1269 0.1364 0.1200 0.1224 0.0222 0.1220 ECN_2pet_45min 0.1728 0.1484 0.1071 0.1415 0.1241 0.0956 0.1061 0.1193 0.0876 0.1122 0.1215 0.0247 0.1157 CRITICAL DURATION : The critical duration for the 2% AEP is the ensemble ECN_2pct_25min. The median pattern for this ensemble is storm 5 (storm name : ECN_2pct_25min_5). The pattern with the greatest <Max Flow> for this ensemble is storm 2 (storm name : ECN_2pct_25min_2). AEP: 20% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_20pet_10min 0.0242 0.0255 0.0254 0.0288 0.0234 0.0243 0.0253 0.0262 0.0270 0.0239 0.0254 0.0015 0.0254 ECN_20pet_15min 0.0372 0.0366 0.0394 0.0340 0.0380 0.0362 0.0399 0.0430 0.0434 0.0493 0.0397 0.0042 0.0387
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82 | ECN_20pct_1_5hr 0.0586 0.0835 0.0791 0.0489 0.0885 0.0419 0.0568 0.0600 0.0902 0.0716 0.0679 0.0162 0.0658 | 83 | ECN_20pct_1hr 0.0695 0.0431 0.0578 0.0566 0.0768 0.0768 0.0530 0.0539 0.0896 0.0698 0.0647 0.0134 0.0637 | 84 | ECN_20pct_20min 0.0567 0.0518 0.0540 0.0564 0.0520 0.0579 0.0557 0.0545 0.0595 0.0776 0.0576 0.0071 0.0561 | 85 | ECN_20pct_25min 0.0519 0.0546 0.0587 0.0533 0.0745 0.0561 0.0629 0.0736 0.0868 0.0820 0.0654 0.0121 0.0608 | 86 | ECN_20pct_2hr 0.0545 0.0481 0.0458 0.0567 0.0709 0.0536 0.0832 0.0503 0.0525 0.0565 0.0572 0.0108 0.0541 | 87 | ECN_20pct_30min 0.1039 0.0547 0.0508 0.0645 0.0706 0.0471 0.0743 0.0598 0.0749 0.0767 0.0677 0.0156 0.0675 | 88 | ECN_20pct_45min 0.0521 0.0463 0.0495 0.0636 0.0647 0.0558 0.0561 0.0658 0.0915 0.0887 0.0634 0.0147 0.0599 | 89 *===============================================================================================================================================================================================================* 90 | CRITICAL DURATION : The critical duration for the 20% AEP is the ensemble ECN_20pct_30min. | 91 | The median pattern for this ensemble is storm 5 (storm name : ECN_20pct_30min_5). | 92 | The pattern with the greatest <Max Flow> for this ensemble is storm 1 (storm name : ECN_20pct_30min_1). | 93 *===============================================================================================================================================================================================================* 94 95 96 AEP: 5% - Max Flow (m^3/s) 97 *===============================================================================================================================================================================================================* 98 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 99 *===============================================================================================================================================================================================================* 100 | ECN_5pct_10min 0.0500 0.0515 0.0583 0.0509 0.0597 0.0542 0.0665 0.0585 0.0518 0.0728 0.0574 0.0071 0.0562 | 101 | ECN_5pct_15min 0.0833 0.0817 0.0920 0.0997 0.0975 0.0860 0.0864 0.0898 0.1088 0.1004 0.0926 0.0083 0.0909 | 102 | ECN_5pct_1_5hr 0.1199 0.0751 0.1099 0.0714 0.0817 0.0948 0.0822 0.0612 0.0689 0.0940 0.0859 0.0177 0.0820 | 103 | ECN_5pct_1hr 0.1269 0.0847 0.0787 0.0762 0.0901 0.1001 0.0929 0.0993 0.0784 0.1374 0.0965 0.0197 0.0915 | 104 | ECN_5pct_20min 0.0851 0.0843 0.0953 0.1191 0.0967 0.1093 0.1028 0.1368 0.1394 0.0940 0.1063 0.0187 0.0998 | 105 | ECN_5pct_25min 0.0978 0.1476 0.0861 0.0828 0.0726 0.1357 0.0962 0.0975 0.0909 0.1330 0.1040 0.0241 0.0968 | 106 | ECN_5pct_2hr 0.1006 0.0662 0.0870 0.1258 0.0902 0.0728 0.0951 0.0688 0.0939 0.0932 0.0894 0.0166 0.0917 | 107 | ECN_5pct_30min 0.0782 0.0880 0.1428 0.0922 0.0879 0.1055 0.1369 0.1002 0.1138 0.1253 0.1071 0.0209 0.1028 | 108 | ECN_5pct_45min 0.0957 0.0876 0.1117 0.0958 0.1004 0.0946 0.0971 0.0728 0.1362 0.1272 0.1019 0.0176 0.0964 | 109 *===============================================================================================================================================================================================================* 110 | CRITICAL DURATION : The critical duration for the 5% AEP is the ensemble ECN_5pct_30min. | 111 | The median pattern for this ensemble is storm 6 (storm name : ECN_5pct_30min_6). | 112 | The pattern with the greatest <Max Flow> for this ensemble is storm 3 (storm name : ECN_5pct_30min_3). | 113 *===============================================================================================================================================================================================================* 114 115 116 AEP: 50% - Max Flow (m^3/s) 117 *===============================================================================================================================================================================================================* 118 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 119 *===============================================================================================================================================================================================================* 120 | ECN_50pct_10min 0.0181 0.0190 0.0190 0.0196 0.0165 0.0169 0.0189 0.0180 0.0202 0.0179 0.0184 0.0011 0.0185 | 121 | ECN_50pct_15min 0.0190 0.0214 0.0191 0.0177 0.0154 0.0151 0.0142 0.0145 0.0177 0.0202 0.0174 0.0024 0.0177 | 122 | ECN_50pct_1_5hr 0.0402 0.0330 0.0554 0.0304 0.0620 0.0262 0.0398 0.0280 0.0611 0.0505 0.0427 0.0130 0.0400 | 123 | ECN_50pct_1hr 0.0383 0.0308 0.0266 0.0402 0.0327 0.0419 0.0376 0.0359 0.0599 0.0473 0.0391 0.0089 0.0380 | 124 | ECN_50pct_20min 0.0188 0.0186 0.0167 0.0180 0.0166 0.0172 0.0169 0.0150 0.0215 0.0261 0.0185 0.0030 0.0176 | 125 | ECN_50pct_25min 0.0241 0.0214 0.0263 0.0254 0.0330 0.0235 0.0290 0.0300 0.0367 0.0329 0.0282 0.0047 0.0277 | 126 | ECN_50pct_2hr 0.0370 0.0201 0.0318 0.0292 0.0499 0.0366 0.0462 0.0345 0.0361 0.0396 0.0361 0.0079 0.0364 | 127 | ECN_50pct_30min 0.0454 0.0301 0.0279 0.0332 0.0295 0.0297 0.0388 0.0285 0.0348 0.0359 0.0334 0.0052 0.0317 | 128 | ECN_50pct_45min 0.0335 0.0295 0.0353 0.0329 0.0307 0.0329 0.0349 0.0431 0.0563 0.0499 0.0379 0.0085 0.0342 | 129 *===============================================================================================================================================================================================================* 130 | CRITICAL DURATION : The critical duration for the 50% AEP is the ensemble ECN_50pct_1_5hr. | 131 | The median pattern for this ensemble is storm 1 (storm name : ECN_50pct_1_5hr_1). | 132 | The pattern with the greatest <Max Flow> for this ensemble is storm 5 (storm name : ECN_50pct_1_5hr_5). | 133 *===============================================================================================================================================================================================================* 134 135 136 AEP: 63.2% - Max Flow (m^3/s) 137 *===============================================================================================================================================================================================================* 138 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 139 *===============================================================================================================================================================================================================* 140 | ECN_63pct_10min 0.0160 0.0168 0.0168 0.0173 0.0146 0.0149 0.0167 0.0158 0.0178 0.0158 0.0162 0.0010 0.0163 | 141 | ECN_63pct_15min 0.0168 0.0190 0.0170 0.0157 0.0136 0.0133 0.0126 0.0129 0.0157 0.0179 0.0155 0.0021 0.0157 | 142 | ECN_63pct_1_5hr 0.0344 0.0244 0.0478 0.0250 0.0535 0.0225 0.0342 0.0198 0.0507 0.0427 0.0355 0.0119 0.0343 | 143 | ECN_63pct_1hr 0.0258 0.0269 0.0184 0.0332 0.0280 0.0346 0.0327 0.0242 0.0444 0.0397 0.0308 0.0073 0.0304 | 144 | ECN_63pct_20min 0.0167 0.0164 0.0148 0.0122 0.0127 0.0150 0.0149 0.0127 0.0155 0.0178 0.0149 0.0018 0.0150 | 145 | ECN_63pct_25min 0.0126 0.0127 0.0139 0.0136 0.0178 0.0136 0.0127 0.0172 0.0199 0.0190 0.0153 0.0027 0.0137 | 146 | ECN_63pct_2hr 0.0316 0.0171 0.0275 0.0194 0.0431 0.0314 0.0397 0.0295 0.0295 0.0342 0.0303 0.0076 0.0304 | 147 | ECN_63pct_30min 0.0253 0.0174 0.0180 0.0189 0.0188 0.0180 0.0209 0.0183 0.0208 0.0248 0.0201 0.0027 0.0188 | 148 | ECN_63pct_45min 0.0238 0.0254 0.0302 0.0235 0.0264 0.0283 0.0274 0.0331 0.0374 0.0395 0.0295 0.0053 0.0279 | 149 *===============================================================================================================================================================================================================* 150 | CRITICAL DURATION : The critical duration for the 63.2% AEP is the ensemble ECN_63pct_1_5hr. | 151 | The median pattern for this ensemble is storm 1 (storm name : ECN_63pct_1_5hr_1). | 152 | The pattern with the greatest <Max Flow> for this ensemble is storm 5 (storm name : ECN_63pct_1_5hr_5). | 153 *===============================================================================================================================================================================================================* 154 [OCR of page images] 82 | ECN_20pet_1_Shr 0.0586 0.0835 0.0791 0.0489 0.0885 0.0419 0.0568 0.0600 0.0902 0.0716 0.0679 0.0162 0.0658 | ECN_20pet_lhr 0.0695 0.0431 0.0578 0.0566 0.0768 0.0768 0.0530 0.0539 0.0896 0.0698 0.0647 0.0134 0.0637 | ECN_20pet_20min 0.0567 0.0518 0.0540 0.0564 0.0520 0.0579 0.0557 0.0545 0.0595 0.0776 0.0576 0.0071 0.0561 | ECN_20pet_25min 0.0519 0.0546 0.0587 0.0533 0.0745 0.0561 0.0629 0.0736 0.0868 0.0820 0.0654 0.0121 0.0608 | ECN_20pet_2hr 0.0545 0.0481 0.0458 0.0567 0.0709 0.0536 0.0832 0.0503 0.0525 0.0565 0.0572 0.0108 0.0541 | ECN_20pet_30min 0.1039 0.0547 0.0508 0.0645 0.0706 0.0471 0.0743 0.0598 0.0749 0.0767 0.0677 0.0156 0.0675 | ECN_20pet_45min 0.0521 0.0463 0.0495 0.0636 0.0647 0.0558 0.0561 0.0658 0.0915 0.0887 0.0634 0.0147 0.0599 * | CRITICAL DURATION : The critical duration for the 20% AEP is the ensemble ECN_20pct_30min. | The median pattern for this ensemble is storm 5 (storm name : ECN_20pct_30min_5). | The pattern with the greatest <Max Flow> for this ensemble is storm 1 (storm name : ECN_20pct_30min_1). * AEP: 5% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_5pet_10min 0.0500 0.0515 0.0583 0.0509 0.0597 0.0542 0.0665 0.0585 0.0518 0.0728 0.0574 0.0071 0.0562 ECN_5pet_15min 0.0833 0.0817 0.0920 0.0997 0.0975 0.0860 0.0864 0.0898 0.1088 0.1004 0.0926 0.0083 0.0909 ECN_5pet_1_5hr 0.1199 0.0751 0.1099 0.0714 0.0817 0.0948 0.0822 0.0612 0.0689 0.0940 0.0859 0.0177 0.0820 ECN_5pet_lhr 0.1269 0.0847 0.0787 0.0762 0.0901 0.1001 0.0929 0.0993 0.0784 0.1374 0.0965 0.0197 0.0915 ECN_5pet_20min 0.0851 0.0843 0.0953 0.1191 0.0967 0.1093 0.1028 0.1368 0.1394 0.0940 0.1063 0.0187 0.0998 ECN_5pet_25min 0.0978 0.1476 0.0861 0.0828 0.0726 0.1357 0.0962 0.0975 0.0909 0.1330 0.1040 0.0241 0.0968 ECN_5pcet_2hr 0.1006 0.0662 0.0870 0.1258 0.0902 0.0728 0.0951 0.0688 0.0939 0.0932 0.0894 0.0166 0.0917 ECN_5pet_30min 0.0782 0.0880 0.1428 0.0922 0.0879 0.1055 0.1369 0.1002 0.1138 0.1253 0.1071 0.0209 0.1028 ECN_5pet_45min 0.0957 0.0876 0.1117 0.0958 0.1004 0.0946 0.0971 0.0728 0.1362 0.1272 0.1019 0.0176 0.0964 CRITICAL DURATION : The critical duration for the 5% AEP is the ensemble ECN_5pct_30min. The median pattern for this ensemble is storm 6 (storm name : ECN_Spct_30min_6). The pattern with the greatest <Max Flow> for this ensemble is storm 3 (storm name : ECN_Spct_30min_3). AEP: 50% - Max Flow (m*3/s) * lig | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median 19 120, | ECN_S0pet_10min 0.0181 0.0190 0.0190 0.0196 0.0165 0.0169 0.0189 0.0180 0.0202 0.0179 0.0184 0.0011 0.0185 121 | ECN_50pet_15min 0.0190 0.0214 0.0191 0.0177 0.0154 0.0151 0.0142 0.0145 0.0177 0.0202 0.0174 0.0024 0.0177 122 | ECN_50pet_1_5hr 0.0402 0.0330 0.0554 0.0304 0.0620 0.0262 0.0398 0.0280 0.0611 0.0505 0.0427 0.0130 0.0400 123 | ECN_50pet_lhr 0.0383 0.0308 0.0266 0.0402 0.0327 0.0419 0.0376 0.0359 0.0599 0.0473 0.0391 0.0089 0.0380 | ECN_50pcet_20min 0.0188 0.0186 0.0167 0.0180 0.0166 0.0172 0.0169 0.0150 0.0215 0.0261 0.0185 0.0030 0.0176 | ECN_50pet_25min 0.0241 0.0214 0.0263 0.0254 0.0330 0.0235 0.0290 0.0300 0.0367 0.0329 0.0282 0.0047 0.0277 | ECN_50pet_2hr 0.0370 0.0201 0.0318 0.0292 0.0499 0.0366 0.0462 0.0345 0.0361 0.0396 0.0361 0.0079 0.0364 | ECN_50pet_30min 0.0454 0.0301 0.0279 0.0332 0.0295 0.0297 0.0388 0.0285 0.0348 0.0359 0.0334 0.0052 0.0317 | ECN_50pet_45min 0.0335 0.0295 0.0353 0.0329 0.0307 0.0329 0.0349 0.0431 0.0563 0.0499 0.0379 0.0085 0.0342 * | CRITICAL DURATION : The critical duration for the 50% AEP is the ensemble ECN_SQpct_1_ Shr. | The median pattern for this ensemble is storm 1 (storm name : ECN_SOpct_1_Shr_1). | The pattern with the greatest <Max Flow> for this ensemble is storm 5 (storm name : ECN_50pct_1_5hr_5). * AEP: 63.2% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_63pct_10min 0.0160 0.0168 0.0168 0.0173 0.0146 0.0149 0.0167 0.0158 0.0178 0.0158 0.0162 0.0010 0.0163 ECN_63pcet_15min 0.0168 0.0190 0.0170 0.0157 0.0136 0.0133 0.0126 0.0129 0.0157 0.0179 0.0155 0.0021 0.0157 ECN_63pet_1_Shr 0.0344 0.0244 0.0478 0.0250 0.0535 0.0225 0.0342 0.0198 0.0507 0.0427 0.0355 0.0119 0.0343 ECN_63pet_lhr 0.0258 0.0269 0.0184 0.0332 0.0280 0.0346 0.0327 0.0242 0.0444 0.0397 0.0308 0.0073 0.0304 ECN_63pcet_20min 0.0167 0.0164 0.0148 0.0122 0.0127 0.0150 0.0149 0.0127 0.0155 0.0178 0.0149 0.0018 0.0150 ECN_63pet_25min 0.0126 0.0127 0.0139 0.0136 0.0178 0.0136 0.0127 0.0172 0.0199 0.0190 0.0153 0.0027 0.0137 ECN_63pet_2hr 0.0316 0.0171 0.0275 0.0194 0.0431 0.0314 0.0397 0.0295 0.0295 0.0342 0.0303 0.0076 0.0304 ECN_63pcet_30min 0.0253 0.0174 0.0180 0.0189 0.0188 0.0180 0.0209 0.0183 0.0208 0.0248 0.0201 0.0027 0.0188 ECN_63pcet_45min 0.0238 0.0254 0.0302 0.0235 0.0264 0.0283 0.0274 0.0331 0.0374 0.0395 0.0295 0.0053 0.0279 CRITICAL DURATION The critical duration for the 63.2% The median pattern for this ensemble is storm 1 The pattern with the greatest <Max Flow> for this ensemble is storm 5 (storm name (storm name AEP is the ensemble ECN_63pct_1_5hr_1). ECN_63pet_1_5hr. ECN_63pcet_1_5hr_5).
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1 INNOVYZE ENSEMBLE STATISTICS UTILITY 2 (c) Innovyze 2020 3 4 Summary information: 5 6 Total No. of Ensembles: 63 7 No. of Storms per ensemble: 10 8 No. of AEP Bands: 7 9 Object Name: Pre Dev B to LPD 2 10 Result type: Max Flow 11 12 13 Results: 14 15 16 AEP: 1% - Max Flow (m^3/s) 17 *===============================================================================================================================================================================================================* 18 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 19 *===============================================================================================================================================================================================================* 20 | ECN_1pct_10min 0.1703 0.1658 0.1716 0.1501 0.1759 0.1477 0.1702 0.1499 0.1874 0.1630 0.1652 0.0122 0.1680 | 21 | ECN_1pct_15min 0.2243 0.2227 0.1976 0.1992 0.2389 0.2399 0.2178 0.2467 0.2414 0.2128 0.2241 0.0166 0.2235 | 22 | ECN_1pct_1_5hr 0.1665 0.1968 0.2012 0.1709 0.2116 0.2087 0.1931 0.1847 0.1886 0.2081 0.1930 0.0148 0.1950 | 23 | ECN_1pct_1hr 0.3033 0.2538 0.1846 0.2122 0.1616 0.2452 0.1728 0.1768 0.2136 0.1609 0.2085 0.0444 0.1984 | 24 | ECN_1pct_20min 0.2384 0.3109 0.1987 0.1984 0.2138 0.2246 0.2083 0.2364 0.2183 0.2663 0.2314 0.0329 0.2214 | 25 | ECN_1pct_25min 0.2180 0.2779 0.2085 0.2393 0.2407 0.2277 0.2211 0.2545 0.2202 0.2871 0.2395 0.0250 0.2335 | 26 | ECN_1pct_2hr 0.2146 0.1583 0.1669 0.1959 0.2004 0.1844 0.1428 0.1511 0.1706 0.1988 0.1784 0.0227 0.1775 | 27 | ECN_1pct_30min 0.2421 0.2204 0.3210 0.2076 0.1880 0.1891 0.2365 0.2429 0.2589 0.2243 0.2331 0.0367 0.2304 | 28 | ECN_1pct_45min 0.3207 0.2681 0.2023 0.2719 0.2383 0.1827 0.2032 0.2316 0.1700 0.2108 0.2300 0.0438 0.2212 | 29 *===============================================================================================================================================================================================================* 30 | CRITICAL DURATION : The critical duration for the 1% AEP is the ensemble ECN_1pct_25min. | 31 | The median pattern for this ensemble is storm 4 (storm name : ECN_1pct_25min_4). | 32 | The pattern with the greatest <Max Flow> for this ensemble is storm 10 (storm name : ECN_1pct_25min_10). | 33 *===============================================================================================================================================================================================================* 34 35 36 AEP: 10% - Max Flow (m^3/s) 37 *===============================================================================================================================================================================================================* 38 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 39 *===============================================================================================================================================================================================================* 40 | ECN_10pct_10min 0.0553 0.0565 0.0589 0.0638 0.0647 0.0592 0.0715 0.0635 0.0569 0.0776 0.0628 0.0068 0.0614 | 41 | ECN_10pct_15min 0.0835 0.0942 0.0983 0.1046 0.0926 0.0946 0.0934 0.0934 0.1132 0.1049 0.0973 0.0079 0.0944 | 42 | ECN_10pct_1_5hr 0.1674 0.1051 0.1579 0.0869 0.1220 0.1397 0.1116 0.0902 0.1002 0.1340 0.1215 0.0263 0.1168 | 43 | ECN_10pct_1hr 0.1831 0.1125 0.1133 0.0954 0.0915 0.1216 0.1319 0.1299 0.1081 0.1974 0.1285 0.0334 0.1174 | 44 | ECN_10pct_20min 0.1217 0.1160 0.1262 0.1414 0.1235 0.1380 0.1305 0.1568 0.1447 0.1234 0.1322 0.0120 0.1283 | 45 | ECN_10pct_25min 0.1248 0.1862 0.1271 0.1231 0.1106 0.1559 0.1327 0.1332 0.1094 0.1724 0.1376 0.0244 0.1299 | 46 | ECN_10pct_2hr 0.1426 0.0951 0.1252 0.1788 0.1244 0.1078 0.1325 0.0989 0.1390 0.1124 0.1257 0.0234 0.1248 | 47 | ECN_10pct_30min 0.1198 0.0947 0.1835 0.1399 0.1285 0.1190 0.1570 0.1331 0.1645 0.1797 0.1420 0.0272 0.1365 | 48 | ECN_10pct_45min 0.1301 0.1255 0.1114 0.1438 0.1434 0.1424 0.1397 0.1066 0.1905 0.1839 0.1417 0.0259 0.1411 | 49 *===============================================================================================================================================================================================================* 50 | CRITICAL DURATION : The critical duration for the 10% AEP is the ensemble ECN_10pct_45min. | 51 | The median pattern for this ensemble is storm 6 (storm name : ECN_10pct_45min_6). | 52 | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_10pct_45min_9). | 53 *===============================================================================================================================================================================================================* 54 55 56 AEP: 2% - Max Flow (m^3/s) 57 *===============================================================================================================================================================================================================* 58 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 59 *===============================================================================================================================================================================================================* 60 | ECN_2pct_10min 0.1196 0.1214 0.1209 0.1341 0.1286 0.1320 0.1245 0.1335 0.1327 0.1124 0.1260 0.0070 0.1265 | 61 | ECN_2pct_15min 0.1762 0.1989 0.1622 0.1786 0.1893 0.1953 0.1805 0.2003 0.1998 0.1760 0.1857 0.0123 0.1849 | 62 | ECN_2pct_1_5hr 0.1434 0.1739 0.1757 0.1511 0.1874 0.1848 0.1591 0.1535 0.1673 0.1843 0.1680 0.0148 0.1706 | 63 | ECN_2pct_1hr 0.2682 0.2254 0.1643 0.1873 0.1439 0.2123 0.1534 0.1412 0.1890 0.1429 0.1828 0.0401 0.1758 | 64 | ECN_2pct_20min 0.2112 0.2682 0.1628 0.1783 0.1910 0.1802 0.1889 0.2094 0.1767 0.2307 0.1997 0.0297 0.1900 | 65 | ECN_2pct_25min 0.1897 0.2470 0.1690 0.2045 0.2043 0.2052 0.1999 0.2285 0.1980 0.2565 0.2103 0.0251 0.2044 | 66 | ECN_2pct_2hr 0.1881 0.1371 0.1477 0.1726 0.1774 0.1635 0.1265 0.1339 0.1513 0.1654 0.1564 0.0193 0.1574 | 67 | ECN_2pct_30min 0.2170 0.1985 0.2887 0.1878 0.1529 0.1442 0.2139 0.2183 0.2337 0.1930 0.2048 0.0389 0.2062 | 68 | ECN_2pct_45min 0.2859 0.2245 0.1810 0.2430 0.2129 0.1643 0.1721 0.1952 0.1529 0.1687 0.2001 0.0395 0.1881 | 69 *===============================================================================================================================================================================================================* 70 | CRITICAL DURATION : The critical duration for the 2% AEP is the ensemble ECN_2pct_30min. | 71 | The median pattern for this ensemble is storm 7 (storm name : ECN_2pct_30min_7). | 72 | The pattern with the greatest <Max Flow> for this ensemble is storm 3 (storm name : ECN_2pct_30min_3). | 73 *===============================================================================================================================================================================================================* 74 75 76 AEP: 20% - Max Flow (m^3/s) 77 *===============================================================================================================================================================================================================* 78 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 79 *===============================================================================================================================================================================================================* 80 | ECN_20pct_10min 0.0482 0.0506 0.0506 0.0519 0.0439 0.0436 0.0503 0.0470 0.0538 0.0476 0.0488 0.0031 0.0492 | 81 | ECN_20pct_15min 0.0552 0.0570 0.0600 0.0535 0.0576 0.0563 0.0621 0.0668 0.0696 0.0788 0.0617 0.0075 0.0588 | [OCR of page images] INNOVYZE ENSEMBLE STATISTICS UTILITY (c) Innovyze 2020 Summary information: 6 Total No. of Ensembles: 63 7 No. of Storms per ensemble: 10 8 No. of AEP Bands: 7 9 Object Name: Pre Dev B to LPD 2 0 Result type: Max Flow 2 13. Results: AEP: 1% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_lpcet_10min 0.1703 0.1658 0.1716 0.1501 0.1759 0.1477 0.1702 0.1499 0.1874 0.1630 0.1652 0.0122 0.1680 ECN_lpet_15min 0.2243 0.2227 0.1976 0.1992 0.2389 0.2399 0.2178 0.2467 0.2414 0.2128 0.2241 0.0166 0.2235 ECN_lpet_1_Shr 0.1665 0.1968 0.2012 0.1709 0.2116 0.2087 0.1931 0.1847 0.1886 0.2081 0.1930 0.0148 0.1950 ECN_lp¢et_lhr 0.3033 0.2538 0.1846 0.2122 0.1616 0.2452 0.1728 0.1768 0.2136 0.1609 0.2085 0.0444 0.1984 ECN_lpet_20min 0.2384 0.3109 0.1987 0.1984 0.2138 0.2246 0.2083 0.2364 0.2183 0.2663 0.2314 0.0329 0.2214 ECN_lpet_25min 0.2180 0.2779 0.2085 0.2393 0.2407 0.2277 0.2211 0.2545 0.2202 0.2871 0.2395 0.0250 0.2335 ECN_lpcet_2hr 0.2146 0.1583 0.1669 0.1959 0.2004 0.1844 0.1428 0.1511 0.1706 0.1988 0.1784 0.0227 0.1775 ECN_lpet_30min 0.2421 0.2204 0.3210 0.2076 0.1880 0.1891 0.2365 0.2429 0.2589 0.2243 0.2331 0.0367 0.2304 ECN_lpet_45min 0.3207 0.2681 0.2023 0.2719 0.2383 0.1827 0.2032 0.2316 0.1700 0.2108 0.2300 0.0438 0.2212 CRITICAL DURATION : The critical duration for the 1% AEP is the ensemble ECN_lpct_25min. The median pattern for this ensemble is storm 4 (storm name : ECN_Ipct_25min_4). The pattern with the greatest <Max Flow> for this ensemble is storm 10 (storm name : ECN_lpct_25min_10). AEP: 10% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_10pet_10min 0.0553 0.0565 0.0589 0.0638 0.0647 0.0592 0.0715 0.0635 0.0569 0.0776 0.0628 0.0068 0.0614 ECN_10pet_15min 0.0835 0.0942 0.0983 0.1046 0.0926 0.0946 0.0934 0.0934 0.1132 0.1049 0.0973 0.0079 0.0944 ECN_10pet_1_Shr 0.1674 0.1051 0.1579 0.0869 0.1220 0.1397 0.1116 0.0902 0.1002 0.1340 0.1215 0.0263 0.1168 ECN_10pet_1hr 0.1831 0.1125 0.1133 0.0954 0.0915 0.1216 0.1319 0.1299 0.1081 0.1974 0.1285 0.0334 0.1174 ECN_10pet_20min 0.1217 0.1160 0.1262 0.1414 0.1235 0.1380 0.1305 0.1568 0.1447 0.1234 0.1322 0.0120 0.1283 ECN_10pet_25min 0.1248 0.1862 0.1271 0.1231 0.1106 0.1559 0.1327 0.1332 0.1094 0.1724 0.1376 0.0244 0.1299 ECN_10pet_2hr 0.1426 0.0951 0.1252 0.1788 0.1244 0.1078 0.1325 0.0989 0.1390 0.1124 0.1257 0.0234 0.1248 ECN_10pet_30min 0.1198 0.0947 0.1835 0.1399 0.1285 0.1190 0.1570 0.1331 0.1645 0.1797 0.1420 0.0272 0.1365 ECN_10pet_45min 0.1301 0.1255 0.1114 0.1438 0.1434 0.1424 0.1397 0.1066 0.1905 0.1839 0.1417 0.0259 0.1411 CRITICAL DURATION : The critical duration for the 10% AEP is the ensemble ECN_10pct_45min. The median pattern for this ensemble is storm 6 (storm name : ECN_10pct_45min_6) . The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_10pct_45min_9). AEP: 2% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_2pet_10min 0.1196 0.1214 0.1209 0.1341 0.1286 0.1320 0.1245 0.1335 0.1327 0.1124 0.1260 0.0070 0.1265 ECN_2pet_15min 0.1762 0.1989 0.1622 0.1786 0.1893 0.1953 0.1805 0.2003 0.1998 0.1760 0.1857 0.0123 0.1849 ECN_2pet_1_Shr 0.1434 0.1739 0.1757 0.1511 0.1874 0.1848 0.1591 0.1535 0.1673 0.1843 0.1680 0.0148 0.1706 ECN_2pet_lhr 0.2682 0.2254 0.1643 0.1873 0.1439 0.2123 0.1534 0.1412 0.1890 0.1429 0.1828 0.0401 0.1758 ECN_2pet_20min 0.2112 0.2682 0.1628 0.1783 0.1910 0.1802 0.1889 0.2094 0.1767 0.2307 0.1997 0.0297 0.1900 ECN_2pet_25min 0.1897 0.2470 0.1690 0.2045 0.2043 0.2052 0.1999 0.2285 0.1980 0.2565 0.2103 0.0251 0.2044 ECN_2pcet_2hr 0.1881 0.1371 0.1477 0.1726 0.1774 0.1635 0.1265 0.1339 0.1513 0.1654 0.1564 0.0193 0.1574 ECN_2pet_30min 0.2170 0.1985 0.2887 0.1878 0.1529 0.1442 0.2139 0.2183 0.2337 0.1930 0.2048 0.0389 0.2062 ECN_2pet_45min 0.2859 0.2245 0.1810 0.2430 0.2129 0.1643 0.1721 0.1952 0.1529 0.1687 0.2001 0.0395 0.1881 CRITICAL DURATION : The critical duration for the 2% AEP is the ensemble ECN_2pct_30min. The median pattern for this ensemble is storm 7 (storm name : ECN_2pct_30min_7). The pattern with the greatest <Max Flow> for this ensemble is storm 3 (storm name : ECN_2pct_30min_3). AEP: 20% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_20pet_10min 0.0482 0.0506 0.0506 0.0519 0.0439 0.0436 0.0503 0.0470 0.0538 0.0476 0.0488 0.0031 0.0492 ECN_20pet_15min 0.0552 0.0570 0.0600 0.0535 0.0576 0.0563 0.0621 0.0668 0.0696 0.0788 0.0617 0.0075 0.0588
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82 | ECN_20pct_1_5hr 0.0950 0.1320 0.1326 0.0788 0.1481 0.0681 0.0959 0.0906 0.1512 0.1242 0.1116 0.0280 0.1100 | 83 | ECN_20pct_1hr 0.1103 0.0757 0.0935 0.0970 0.1154 0.1228 0.0915 0.0946 0.1485 0.1195 0.1069 0.0196 0.1036 | 84 | ECN_20pct_20min 0.0843 0.0797 0.0821 0.0829 0.0765 0.0853 0.0823 0.0804 0.0873 0.1155 0.0856 0.0104 0.0826 | 85 | ECN_20pct_25min 0.0807 0.0822 0.0945 0.0892 0.1140 0.0894 0.0986 0.1121 0.1275 0.1219 0.1010 0.0159 0.0966 | 86 | ECN_20pct_2hr 0.0890 0.0751 0.0801 0.0947 0.1246 0.0888 0.1248 0.0827 0.0881 0.0987 0.0947 0.0163 0.0889 | 87 | ECN_20pct_30min 0.1575 0.0900 0.0846 0.1055 0.1088 0.0832 0.1170 0.0935 0.1121 0.1241 0.1076 0.0212 0.1072 | 88 | ECN_20pct_45min 0.0913 0.0769 0.0847 0.0940 0.0963 0.0892 0.0972 0.1131 0.1533 0.1440 0.1040 0.0241 0.0952 | 89 *===============================================================================================================================================================================================================* 90 | CRITICAL DURATION : The critical duration for the 20% AEP is the ensemble ECN_20pct_1_5hr. | 91 | The median pattern for this ensemble is storm 10 (storm name : ECN_20pct_1_5hr_10). | 92 | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_20pct_1_5hr_9). | 93 *===============================================================================================================================================================================================================* 94 95 96 AEP: 5% - Max Flow (m^3/s) 97 *===============================================================================================================================================================================================================* 98 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 99 *===============================================================================================================================================================================================================* 100 | ECN_5pct_10min 0.0786 0.0811 0.0883 0.0771 0.0938 0.0852 0.1043 0.0919 0.0816 0.1140 0.0896 0.0113 0.0868 | 101 | ECN_5pct_15min 0.1278 0.1261 0.1370 0.1473 0.1440 0.1271 0.1304 0.1326 0.1612 0.1489 0.1382 0.0111 0.1348 | 102 | ECN_5pct_1_5hr 0.1970 0.1239 0.1850 0.1112 0.1424 0.1630 0.1333 0.1053 0.1171 0.1572 0.1435 0.0297 0.1379 | 103 | ECN_5pct_1hr 0.2131 0.1370 0.1340 0.1289 0.1370 0.1572 0.1563 0.1652 0.1255 0.2315 0.1586 0.0344 0.1466 | 104 | ECN_5pct_20min 0.1477 0.1398 0.1580 0.1831 0.1538 0.1767 0.1655 0.2059 0.2088 0.1540 0.1693 0.0226 0.1617 | 105 | ECN_5pct_25min 0.1568 0.2320 0.1480 0.1429 0.1272 0.2039 0.1563 0.1581 0.1377 0.2178 0.1681 0.0344 0.1565 | 106 | ECN_5pct_2hr 0.1691 0.1124 0.1483 0.2134 0.1480 0.1269 0.1569 0.1171 0.1636 0.1395 0.1495 0.0279 0.1481 | 107 | ECN_5pct_30min 0.1372 0.1292 0.2218 0.1609 0.1528 0.1606 0.2163 0.1649 0.1924 0.2130 0.1749 0.0319 0.1629 | 108 | ECN_5pct_45min 0.1637 0.1483 0.1684 0.1661 0.1693 0.1647 0.1624 0.1271 0.2302 0.2135 0.1714 0.0282 0.1654 | 109 *===============================================================================================================================================================================================================* 110 | CRITICAL DURATION : The critical duration for the 5% AEP is the ensemble ECN_5pct_45min. | 111 | The median pattern for this ensemble is storm 4 (storm name : ECN_5pct_45min_4). | 112 | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_5pct_45min_9). | 113 *===============================================================================================================================================================================================================* 114 115 116 AEP: 50% - Max Flow (m^3/s) 117 *===============================================================================================================================================================================================================* 118 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 119 *===============================================================================================================================================================================================================* 120 | ECN_50pct_10min 0.0360 0.0378 0.0378 0.0383 0.0328 0.0313 0.0376 0.0338 0.0402 0.0356 0.0361 0.0026 0.0368 | 121 | ECN_50pct_15min 0.0377 0.0426 0.0380 0.0351 0.0293 0.0277 0.0263 0.0283 0.0337 0.0385 0.0337 0.0053 0.0344 | 122 | ECN_50pct_1_5hr 0.0643 0.0544 0.0908 0.0517 0.1023 0.0431 0.0663 0.0463 0.1026 0.0857 0.0707 0.0217 0.0653 | 123 | ECN_50pct_1hr 0.0621 0.0542 0.0423 0.0676 0.0579 0.0724 0.0652 0.0567 0.0917 0.0802 0.0650 0.0133 0.0636 | 124 | ECN_50pct_20min 0.0374 0.0369 0.0331 0.0297 0.0269 0.0337 0.0319 0.0272 0.0350 0.0448 0.0337 0.0051 0.0334 | 125 | ECN_50pct_25min 0.0351 0.0310 0.0390 0.0371 0.0518 0.0343 0.0423 0.0458 0.0569 0.0498 0.0423 0.0081 0.0407 | 126 | ECN_50pct_2hr 0.0594 0.0339 0.0559 0.0448 0.0871 0.0604 0.0782 0.0555 0.0593 0.0690 0.0603 0.0145 0.0593 | 127 | ECN_50pct_30min 0.0683 0.0460 0.0428 0.0481 0.0438 0.0454 0.0562 0.0436 0.0510 0.0523 0.0497 0.0074 0.0470 | 128 | ECN_50pct_45min 0.0516 0.0502 0.0597 0.0546 0.0518 0.0567 0.0580 0.0684 0.0838 0.0799 0.0615 0.0114 0.0573 | 129 *===============================================================================================================================================================================================================* 130 | CRITICAL DURATION : The critical duration for the 50% AEP is the ensemble ECN_50pct_1_5hr. | 131 | The median pattern for this ensemble is storm 7 (storm name : ECN_50pct_1_5hr_7). | 132 | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_50pct_1_5hr_9). | 133 *===============================================================================================================================================================================================================* 134 135 136 AEP: 63.2% - Max Flow (m^3/s) 137 *===============================================================================================================================================================================================================* 138 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 139 *===============================================================================================================================================================================================================* 140 | ECN_63pct_10min 0.0317 0.0334 0.0333 0.0338 0.0289 0.0276 0.0331 0.0298 0.0354 0.0313 0.0318 0.0023 0.0324 | 141 | ECN_63pct_15min 0.0334 0.0378 0.0337 0.0311 0.0260 0.0246 0.0233 0.0251 0.0298 0.0341 0.0299 0.0047 0.0305 | 142 | ECN_63pct_1_5hr 0.0547 0.0397 0.0776 0.0391 0.0878 0.0369 0.0571 0.0341 0.0796 0.0686 0.0575 0.0189 0.0559 | 143 | ECN_63pct_1hr 0.0382 0.0472 0.0309 0.0522 0.0475 0.0558 0.0561 0.0378 0.0722 0.0634 0.0501 0.0119 0.0499 | 144 | ECN_63pct_20min 0.0331 0.0326 0.0293 0.0239 0.0238 0.0298 0.0282 0.0241 0.0298 0.0335 0.0288 0.0036 0.0296 | 145 | ECN_63pct_25min 0.0237 0.0241 0.0263 0.0252 0.0311 0.0266 0.0223 0.0285 0.0341 0.0309 0.0273 0.0036 0.0265 | 146 | ECN_63pct_2hr 0.0503 0.0290 0.0481 0.0327 0.0736 0.0517 0.0673 0.0471 0.0469 0.0583 0.0505 0.0130 0.0492 | 147 | ECN_63pct_30min 0.0412 0.0254 0.0269 0.0281 0.0271 0.0269 0.0306 0.0285 0.0302 0.0369 0.0302 0.0048 0.0283 | 148 | ECN_63pct_45min 0.0369 0.0423 0.0484 0.0352 0.0431 0.0471 0.0417 0.0517 0.0549 0.0594 0.0461 0.0073 0.0451 | 149 *===============================================================================================================================================================================================================* 150 | CRITICAL DURATION : The critical duration for the 63.2% AEP is the ensemble ECN_63pct_1_5hr. | 151 | The median pattern for this ensemble is storm 7 (storm name : ECN_63pct_1_5hr_7). | 152 | The pattern with the greatest <Max Flow> for this ensemble is storm 5 (storm name : ECN_63pct_1_5hr_5). | 153 *===============================================================================================================================================================================================================* 154 [OCR of page images] 82 | ECN_20pet_1_Shr 0.0950 0.1320 0.1326 0.0788 0.1481 0.0681 0.0959 0.0906 0.1512 0.1242 0.1116 0.0280 0.1100 | ECN_20pet_lhr 0.1103 0.0757 0.0935 0.0970 0.1154 0.1228 0.0915 0.0946 0.1485 0.1195 0.1069 0.0196 0.1036 | ECN_20pet_20min 0.0843 0.0797 0.0821 0.0829 0.0765 0.0853 0.0823 0.0804 0.0873 0.1155 0.0856 0.0104 0.0826 | ECN_20pet_25min 0.0807 0.0822 0.0945 0.0892 0.1140 0.0894 0.0986 0.1121 0.1275 0.1219 0.1010 0.0159 0.0966 | ECN_20pet_2hr 0.0890 0.0751 0.0801 0.0947 0.1246 0.0888 0.1248 0.0827 0.0881 0.0987 0.0947 0.0163 0.0889 | ECN_20pet_30min 0.1575 0.0900 0.0846 0.1055 0.1088 0.0832 0.1170 0.0935 0.1121 0.1241 0.1076 0.0212 0.1072 | ECN_20pet_45min 0.0913 0.0769 0.0847 0.0940 0.0963 0.0892 0.0972 0.1131 0.1533 0.1440 0.1040 0.0241 0.0952 * | CRITICAL DURATION : The critical duration for the 20% AEP is the ensemble ECN_20pct_1_ Shr. | The median pattern for this ensemble is storm 10 (storm name : ECN_20pct_1_Shr_10). | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_20pct_1_5hr_9). * AEP: 5% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_5pet_10min 0.0786 0.0811 0.0883 0.0771 0.0938 0.0852 0.1043 0.0919 0.0816 0.1140 0.0896 0.0113 0.0868 ECN_5pet_15min 0.1278 0.1261 0.1370 0.1473 0.1440 0.1271 0.1304 0.1326 0.1612 0.1489 0.1382 0.0111 0.1348 ECN_5pet_1_5hr 0.1970 0.1239 0.1850 0.1112 0.1424 0.1630 0.1333 0.1053 0.1171 0.1572 0.1435 0.0297 0.1379 ECN_5pet_lhr 0.2131 0.1370 0.1340 0.1289 0.1370 0.1572 0.1563 0.1652 0.1255 0.2315 0.1586 0.0344 0.1466 ECN_5pet_20min 0.1477 0.1398 0.1580 0.1831 0.1538 0.1767 0.1655 0.2059 0.2088 0.1540 0.1693 0.0226 0.1617 ECN_5pet_25min 0.1568 0.2320 0.1480 0.1429 0.1272 0.2039 0.1563 0.1581 0.1377 0.2178 0.1681 0.0344 0.1565 ECN_5pcet_2hr 0.1691 0.1124 0.1483 0.2134 0.1480 0.1269 0.1569 0.1171 0.1636 0.1395 0.1495 0.0279 0.1481 ECN_5pet_30min 0.1372 0.1292 0.2218 0.1609 0.1528 0.1606 0.2163 0.1649 0.1924 0.2130 0.1749 0.0319 0.1629 ECN_5pet_45min 0.1637 0.1483 0.1684 0.1661 0.1693 0.1647 0.1624 0.1271 0.2302 0.2135 0.1714 0.0282 0.1654 CRITICAL DURATION : The critical duration for the 5% AEP is the ensemble ECN_5pct_45min. The median pattern for this ensemble is storm 4 (storm name : ECN_Spct_45min_4). The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_Spct_45min_9). AEP: 50% - Max Flow (m*3/s) * lig | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median 19 120, | ECN_S0pet_10min 0.0360 0.0378 0.0378 0.0383 0.0328 0.0313 0.0376 0.0338 0.0402 0.0356 0.0361 0.0026 0.0368 121 | ECN_50pet_15min 0.0377 0.0426 0.0380 0.0351 0.0293 0.0277 0.0263 0.0283 0.0337 0.0385 0.0337 0.0053 0.0344 122 | ECN_50pet_1_5hr 0.0643 0.0544 0.0908 0.0517 0.1023 0.0431 0.0663 0.0463 0.1026 0.0857 0.0707 0.0217 0.0653 123 | ECN_50pet_lhr 0.0621 0.0542 0.0423 0.0676 0.0579 0.0724 0.0652 0.0567 0.0917 0.0802 0.0650 0.0133 0.0636 | ECN_50pcet_20min 0.0374 0.0369 0.0331 0.0297 0.0269 0.0337 0.0319 0.0272 0.0350 0.0448 0.0337 0.0051 0.0334 | ECN_50pet_25min 0.0351 0.0310 0.0390 0.0371 0.0518 0.0343 0.0423 0.0458 0.0569 0.0498 0.0423 0.0081 0.0407 | ECN_50pet_2hr 0.0594 0.0339 0.0559 0.0448 0.0871 0.0604 0.0782 0.0555 0.0593 0.0690 0.0603 0.0145 0.0593 | ECN_50pet_30min 0.0683 0.0460 0.0428 0.0481 0.0438 0.0454 0.0562 0.0436 0.0510 0.0523 0.0497 0.0074 0.0470 | ECN_50pet_45min 0.0516 0.0502 0.0597 0.0546 0.0518 0.0567 0.0580 0.0684 0.0838 0.0799 0.0615 0.0114 0.0573 * | CRITICAL DURATION : The critical duration for the 50% AEP is the ensemble ECN_SQpct_1_ Shr. | The median pattern for this ensemble is storm 7 (storm name : ECN_50pct_1_Shr_7). | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_50pct_1_S5hr_9). * AEP: 63.2% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_63pct_10min 0.0317 0.0334 0.0333 0.0338 0.0289 0.0276 0.0331 0.0298 0.0354 0.0313 0.0318 0.0023 0.0324 ECN_63pcet_15min 0.0334 0.0378 0.0337 0.0311 0.0260 0.0246 0.0233 0.0251 0.0298 0.0341 0.0299 0.0047 0.0305 ECN_63pet_1_Shr 0.0547 0.0397 0.0776 0.0391 0.0878 0.0369 0.0571 0.0341 0.0796 0.0686 0.0575 0.0189 0.0559 ECN_63pet_lhr 0.0382 0.0472 0.0309 0.0522 0.0475 0.0558 0.0561 0.0378 0.0722 0.0634 0.0501 0.0119 0.0499 ECN_63pcet_20min 0.0331 0.0326 0.0293 0.0239 0.0238 0.0298 0.0282 0.0241 0.0298 0.0335 0.0288 0.0036 0.0296 ECN_63pet_25min 0.0237 0.0241 0.0263 0.0252 0.0311 0.0266 0.0223 0.0285 0.0341 0.0309 0.0273 0.0036 0.0265 ECN_63pet_2hr 0.0503 0.0290 0.0481 0.0327 0.0736 0.0517 0.0673 0.0471 0.0469 0.0583 0.0505 0.0130 0.0492 ECN_63pcet_30min 0.0412 0.0254 0.0269 0.0281 0.0271 0.0269 0.0306 0.0285 0.0302 0.0369 0.0302 0.0048 0.0283 ECN_63pcet_45min 0.0369 0.0423 0.0484 0.0352 0.0431 0.0471 0.0417 0.0517 0.0549 0.0594 0.0461 0.0073 0.0451 CRITICAL DURATION The critical duration for the 63.2% The median pattern for this ensemble is storm 7 The pattern with the greatest <Max Flow> for this ensemble is storm 5 (storm name (storm name AEP is the ensemble ECN_63pct_1_5hr_7). ECN_63pet_1_5hr. ECN_63pcet_1_5hr_5).
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1 INNOVYZE ENSEMBLE STATISTICS UTILITY 2 (c) Innovyze 2020 3 4 Summary information: 5 6 Total No. of Ensembles: 63 7 No. of Storms per ensemble: 10 8 No. of AEP Bands: 7 9 Object Name: Pre Dev C to Eumundi Noosa Rd 10 Result type: Max Flow 11 12 13 Results: 14 15 16 AEP: 1% - Max Flow (m^3/s) 17 *===============================================================================================================================================================================================================* 18 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 19 *===============================================================================================================================================================================================================* 20 | ECN_1pct_10min 0.0710 0.0763 0.0716 0.0762 0.0803 0.0752 0.0781 0.0700 0.0923 0.0730 0.0764 0.0061 0.0757 | 21 | ECN_1pct_15min 0.0885 0.0748 0.0724 0.0682 0.0858 0.0820 0.0697 0.1025 0.0872 0.0677 0.0799 0.0107 0.0784 | 22 | ECN_1pct_1_5hr 0.0546 0.0649 0.0632 0.0522 0.0655 0.0622 0.0600 0.0699 0.0575 0.0631 0.0613 0.0051 0.0626 | 23 | ECN_1pct_1hr 0.0994 0.0798 0.0584 0.0662 0.0481 0.0751 0.0538 0.0597 0.0653 0.0627 0.0668 0.0140 0.0640 | 24 | ECN_1pct_20min 0.0768 0.1071 0.0649 0.0614 0.0687 0.0741 0.0646 0.0705 0.0697 0.0824 0.0740 0.0125 0.0701 | 25 | ECN_1pct_25min 0.0689 0.1051 0.0706 0.0774 0.0810 0.0689 0.0684 0.0812 0.0668 0.0882 0.0776 0.0114 0.0740 | 26 | ECN_1pct_2hr 0.0708 0.0540 0.0543 0.0636 0.0600 0.0576 0.0432 0.0457 0.0532 0.0730 0.0575 0.0092 0.0559 | 27 | ECN_1pct_30min 0.0817 0.0719 0.1014 0.0642 0.0673 0.0930 0.0707 0.0742 0.0813 0.0721 0.0778 0.0112 0.0732 | 28 | ECN_1pct_45min 0.1050 0.0962 0.0668 0.0818 0.0722 0.0578 0.0636 0.0838 0.0505 0.0729 0.0751 0.0161 0.0726 | 29 *===============================================================================================================================================================================================================* 30 | CRITICAL DURATION : The critical duration for the 1% AEP is the ensemble ECN_1pct_15min. | 31 | The median pattern for this ensemble is storm 6 (storm name : ECN_1pct_15min_6). | 32 | The pattern with the greatest <Max Flow> for this ensemble is storm 8 (storm name : ECN_1pct_15min_8). | 33 *===============================================================================================================================================================================================================* 34 35 36 AEP: 10% - Max Flow (m^3/s) 37 *===============================================================================================================================================================================================================* 38 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 39 *===============================================================================================================================================================================================================* 40 | ECN_10pct_10min 0.0450 0.0439 0.0480 0.0519 0.0449 0.0421 0.0491 0.0441 0.0437 0.0529 0.0466 0.0035 0.0450 | 41 | ECN_10pct_15min 0.0510 0.0500 0.0503 0.0459 0.0447 0.0431 0.0405 0.0412 0.0582 0.0544 0.0479 0.0055 0.0479 | 42 | ECN_10pct_1_5hr 0.0557 0.0355 0.0509 0.0381 0.0366 0.0422 0.0379 0.0328 0.0323 0.0454 0.0407 0.0074 0.0380 | 43 | ECN_10pct_1hr 0.0611 0.0381 0.0363 0.0524 0.0384 0.0446 0.0422 0.0445 0.0329 0.0668 0.0457 0.0105 0.0434 | 44 | ECN_10pct_20min 0.0413 0.0419 0.0413 0.0547 0.0487 0.0476 0.0474 0.0638 0.0634 0.0444 0.0494 0.0081 0.0475 | 45 | ECN_10pct_25min 0.0439 0.0691 0.0464 0.0395 0.0469 0.0638 0.0435 0.0429 0.0439 0.0584 0.0498 0.0096 0.0451 | 46 | ECN_10pct_2hr 0.0462 0.0308 0.0400 0.0579 0.0439 0.0356 0.0493 0.0318 0.0415 0.0433 0.0420 0.0078 0.0424 | 47 | ECN_10pct_30min 0.0369 0.0438 0.0769 0.0435 0.0398 0.0470 0.0610 0.0438 0.0507 0.0573 0.0501 0.0114 0.0454 | 48 | ECN_10pct_45min 0.0479 0.0397 0.0458 0.0439 0.0466 0.0436 0.0464 0.0333 0.0618 0.0614 0.0470 0.0083 0.0461 | 49 *===============================================================================================================================================================================================================* 50 | CRITICAL DURATION : The critical duration for the 10% AEP is the ensemble ECN_10pct_15min. | 51 | The median pattern for this ensemble is storm 2 (storm name : ECN_10pct_15min_2). | 52 | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_10pct_15min_9). | 53 *===============================================================================================================================================================================================================* 54 55 56 AEP: 2% - Max Flow (m^3/s) 57 *===============================================================================================================================================================================================================* 58 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 59 *===============================================================================================================================================================================================================* 60 | ECN_2pct_10min 0.0644 0.0632 0.0640 0.0688 0.0664 0.0679 0.0646 0.0632 0.0757 0.0667 0.0665 0.0036 0.0655 | 61 | ECN_2pct_15min 0.0727 0.0678 0.0661 0.0623 0.0741 0.0720 0.0619 0.0886 0.0769 0.0601 0.0703 0.0081 0.0699 | 62 | ECN_2pct_1_5hr 0.0462 0.0575 0.0556 0.0462 0.0582 0.0553 0.0526 0.0572 0.0510 0.0561 0.0536 0.0042 0.0555 | 63 | ECN_2pct_1hr 0.0884 0.0711 0.0509 0.0590 0.0429 0.0668 0.0480 0.0507 0.0582 0.0510 0.0587 0.0128 0.0546 | 64 | ECN_2pct_20min 0.0667 0.0962 0.0583 0.0561 0.0600 0.0647 0.0584 0.0634 0.0608 0.0744 0.0659 0.0113 0.0621 | 65 | ECN_2pct_25min 0.0593 0.0947 0.0595 0.0694 0.0666 0.0626 0.0621 0.0736 0.0606 0.0800 0.0688 0.0107 0.0646 | 66 | ECN_2pct_2hr 0.0627 0.0464 0.0482 0.0564 0.0534 0.0512 0.0381 0.0406 0.0472 0.0635 0.0508 0.0080 0.0497 | 67 | ECN_2pct_30min 0.0738 0.0647 0.0918 0.0581 0.0572 0.0760 0.0641 0.0672 0.0736 0.0648 0.0691 0.0097 0.0660 | 68 | ECN_2pct_45min 0.0943 0.0849 0.0598 0.0726 0.0641 0.0509 0.0567 0.0699 0.0455 0.0631 0.0662 0.0141 0.0636 | 69 *===============================================================================================================================================================================================================* 70 | CRITICAL DURATION : The critical duration for the 2% AEP is the ensemble ECN_2pct_15min. | 71 | The median pattern for this ensemble is storm 6 (storm name : ECN_2pct_15min_6). | 72 | The pattern with the greatest <Max Flow> for this ensemble is storm 8 (storm name : ECN_2pct_15min_8). | 73 *===============================================================================================================================================================================================================* 74 75 76 AEP: 20% - Max Flow (m^3/s) 77 *===============================================================================================================================================================================================================* 78 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 79 *===============================================================================================================================================================================================================* 80 | ECN_20pct_10min 0.0393 0.0412 0.0412 0.0421 0.0358 0.0351 0.0409 0.0377 0.0438 0.0388 0.0396 0.0026 0.0401 | 81 | ECN_20pct_15min 0.0411 0.0464 0.0415 0.0383 0.0320 0.0313 0.0341 0.0363 0.0419 0.0467 0.0390 0.0052 0.0397 | [OCR of page images] INNOVYZE ENSEMBLE STATISTICS UTILITY (c) Innovyze 2020 Summary information: 6 Total No. of Ensembles: 63 7 No. of Storms per ensemble: 10 8 No. of AEP Bands: 7 9 Object Name: Pre Dev C to Eumundi Noosa Rd 0 Result type: Max Flow 2 13. Results: AEP: 1% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_lpcet_10min 0.0710 0.0763 0.0716 0.0762 0.0803 0.0752 0.0781 0.0700 0.0923 0.0730 0.0764 0.0061 0.0757 ECN_lpet_15min 0.0885 0.0748 0.0724 0.0682 0.0858 0.0820 0.0697 0.1025 0.0872 0.0677 0.0799 0.0107 0.0784 ECN_lpet_1_Shr 0.0546 0.0649 0.0632 0.0522 0.0655 0.0622 0.0600 0.0699 0.0575 0.0631 0.0613 0.0051 0.0626 ECN_lp¢et_lhr 0.0994 0.0798 0.0584 0.0662 0.0481 0.0751 0.0538 0.0597 0.0653 0.0627 0.0668 0.0140 0.0640 ECN_lpet_20min 0.0768 0.1071 0.0649 0.0614 0.0687 0.0741 0.0646 0.0705 0.0697 0.0824 0.0740 0.0125 0.0701 ECN_lpet_25min 0.0689 0.1051 0.0706 0.0774 0.0810 0.0689 0.0684 0.0812 0.0668 0.0882 0.0776 0.0114 0.0740 ECN_lpcet_2hr 0.0708 0.0540 0.0543 0.0636 0.0600 0.0576 0.0432 0.0457 0.0532 0.0730 0.0575 0.0092 0.0559 ECN_lpet_30min 0.0817 0.0719 0.1014 0.0642 0.0673 0.0930 0.0707 0.0742 0.0813 0.0721 0.0778 0.0112 0.0732 ECN_lpet_45min 0.1050 0.0962 0.0668 0.0818 0.0722 0.0578 0.0636 0.0838 0.0505 0.0729 0.0751 0.0161 0.0726 CRITICAL DURATION : The critical duration for the 1% AEP is the ensemble ECN_lpct_15min. The median pattern for this ensemble is storm 6 (storm name : ECN_1pct_15min_6). The pattern with the greatest <Max Flow> for this ensemble is storm 8 (storm name : ECN_lpct_15min_8). AEP: 10% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_10pet_10min 0.0450 0.0439 0.0480 0.0519 0.0449 0.0421 0.0491 0.0441 0.0437 0.0529 0.0466 0.0035 0.0450 ECN_10pet_15min 0.0510 0.0500 0.0503 0.0459 0.0447 0.0431 0.0405 0.0412 0.0582 0.0544 0.0479 0.0055 0.0479 ECN_10pet_1_Shr 0.0557 0.0355 0.0509 0.0381 0.0366 0.0422 0.0379 0.0328 0.0323 0.0454 0.0407 0.0074 0.0380 ECN_10pet_1hr 0.0611 0.0381 0.0363 0.0524 0.0384 0.0446 0.0422 0.0445 0.0329 0.0668 0.0457 0.0105 0.0434 ECN_10pet_20min 0.0413 0.0419 0.0413 0.0547 0.0487 0.0476 0.0474 0.0638 0.0634 0.0444 0.0494 0.0081 0.0475 ECN_10pet_25min 0.0439 0.0691 0.0464 0.0395 0.0469 0.0638 0.0435 0.0429 0.0439 0.0584 0.0498 0.0096 0.0451 ECN_10pet_2hr 0.0462 0.0308 0.0400 0.0579 0.0439 0.0356 0.0493 0.0318 0.0415 0.0433 0.0420 0.0078 0.0424 ECN_10pet_30min 0.0369 0.0438 0.0769 0.0435 0.0398 0.0470 0.0610 0.0438 0.0507 0.0573 0.0501 0.0114 0.0454 ECN_10pet_45min 0.0479 0.0397 0.0458 0.0439 0.0466 0.0436 0.0464 0.0333 0.0618 0.0614 0.0470 0.0083 0.0461 CRITICAL DURATION : The critical duration for the 10% AEP is the ensemble ECN_10pct_15min. The median pattern for this ensemble is storm 2 (storm name : ECN_10pct_15min_2). The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_10pct_15min_9). AEP: 2% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_2pet_10min 0.0644 0.0632 0.0640 0.0688 0.0664 0.0679 0.0646 0.0632 0.0757 0.0667 0.0665 0.0036 0.0655 ECN_2pet_15min 0.0727 0.0678 0.0661 0.0623 0.0741 0.0720 0.0619 0.0886 0.0769 0.0601 0.0703 0.0081 0.0699 ECN_2pet_1_Shr 0.0462 0.0575 0.0556 0.0462 0.0582 0.0553 0.0526 0.0572 0.0510 0.0561 0.0536 0.0042 0.0555 ECN_2pet_lhr 0.0884 0.0711 0.0509 0.0590 0.0429 0.0668 0.0480 0.0507 0.0582 0.0510 0.0587 0.0128 0.0546 ECN_2pet_20min 0.0667 0.0962 0.0583 0.0561 0.0600 0.0647 0.0584 0.0634 0.0608 0.0744 0.0659 0.0113 0.0621 ECN_2pet_25min 0.0593 0.0947 0.0595 0.0694 0.0666 0.0626 0.0621 0.0736 0.0606 0.0800 0.0688 0.0107 0.0646 ECN_2pcet_2hr 0.0627 0.0464 0.0482 0.0564 0.0534 0.0512 0.0381 0.0406 0.0472 0.0635 0.0508 0.0080 0.0497 ECN_2pet_30min 0.0738 0.0647 0.0918 0.0581 0.0572 0.0760 0.0641 0.0672 0.0736 0.0648 0.0691 0.0097 0.0660 ECN_2pet_45min 0.0943 0.0849 0.0598 0.0726 0.0641 0.0509 0.0567 0.0699 0.0455 0.0631 0.0662 0.0141 0.0636 CRITICAL DURATION : The critical duration for the 2% AEP is the ensemble ECN_2pct_15min. The median pattern for this ensemble is storm 6 (storm name : ECN_2pct_15min_6). The pattern with the greatest <Max Flow> for this ensemble is storm 8 (storm name : ECN_2pct_15min_8). AEP: 20% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_20pet_10min 0.0393 0.0412 0.0412 0.0421 0.0358 0.0351 0.0409 0.0377 0.0438 0.0388 0.0396 0.0026 0.0401 ECN_20pet_15min 0.0411 0.0464 0.0415 0.0383 0.0320 0.0313 0.0341 0.0363 0.0419 0.0467 0.0390 0.0052 0.0397
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82 | ECN_20pct_1_5hr 0.0321 0.0466 0.0410 0.0269 0.0462 0.0237 0.0297 0.0347 0.0496 0.0383 0.0369 0.0084 0.0365 | 83 | ECN_20pct_1hr 0.0463 0.0253 0.0299 0.0345 0.0461 0.0433 0.0299 0.0295 0.0475 0.0377 0.0370 0.0079 0.0361 | 84 | ECN_20pct_20min 0.0408 0.0402 0.0362 0.0351 0.0299 0.0368 0.0397 0.0319 0.0392 0.0544 0.0384 0.0063 0.0380 | 85 | ECN_20pct_25min 0.0298 0.0320 0.0328 0.0317 0.0471 0.0331 0.0376 0.0416 0.0534 0.0458 0.0385 0.0077 0.0353 | 86 | ECN_20pct_2hr 0.0299 0.0322 0.0275 0.0301 0.0381 0.0292 0.0480 0.0505 0.0284 0.0295 0.0343 0.0080 0.0300 | 87 | ECN_20pct_30min 0.0584 0.0294 0.0334 0.0386 0.0379 0.0344 0.0470 0.0437 0.0431 0.0427 0.0408 0.0078 0.0406 | 88 | ECN_20pct_45min 0.0395 0.0300 0.0269 0.0357 0.0418 0.0289 0.0291 0.0357 0.0471 0.0483 0.0363 0.0073 0.0357 | 89 *===============================================================================================================================================================================================================* 90 | CRITICAL DURATION : The critical duration for the 20% AEP is the ensemble ECN_20pct_30min. | 91 | The median pattern for this ensemble is storm 10 (storm name : ECN_20pct_30min_10). | 92 | The pattern with the greatest <Max Flow> for this ensemble is storm 1 (storm name : ECN_20pct_30min_1). | 93 *===============================================================================================================================================================================================================* 94 95 96 AEP: 5% - Max Flow (m^3/s) 97 *===============================================================================================================================================================================================================* 98 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 99 *===============================================================================================================================================================================================================* 100 | ECN_5pct_10min 0.0510 0.0498 0.0544 0.0589 0.0555 0.0511 0.0610 0.0546 0.0496 0.0659 0.0552 0.0051 0.0545 | 101 | ECN_5pct_15min 0.0576 0.0566 0.0568 0.0573 0.0585 0.0521 0.0494 0.0518 0.0730 0.0682 0.0581 0.0069 0.0571 | 102 | ECN_5pct_1_5hr 0.0648 0.0414 0.0592 0.0457 0.0425 0.0490 0.0442 0.0379 0.0376 0.0528 0.0475 0.0086 0.0449 | 103 | ECN_5pct_1hr 0.0708 0.0481 0.0418 0.0602 0.0495 0.0534 0.0514 0.0524 0.0417 0.0774 0.0547 0.0111 0.0519 | 104 | ECN_5pct_20min 0.0510 0.0475 0.0507 0.0653 0.0602 0.0560 0.0555 0.0769 0.0797 0.0517 0.0595 0.0106 0.0558 | 105 | ECN_5pct_25min 0.0529 0.0808 0.0526 0.0448 0.0532 0.0767 0.0514 0.0517 0.0561 0.0682 0.0588 0.0114 0.0531 | 106 | ECN_5pct_2hr 0.0543 0.0362 0.0470 0.0681 0.0518 0.0423 0.0579 0.0374 0.0487 0.0564 0.0500 0.0093 0.0502 | 107 | ECN_5pct_30min 0.0419 0.0556 0.0891 0.0497 0.0456 0.0590 0.0739 0.0566 0.0609 0.0657 0.0598 0.0132 0.0578 | 108 | ECN_5pct_45min 0.0566 0.0485 0.0612 0.0506 0.0538 0.0501 0.0535 0.0385 0.0715 0.0709 0.0555 0.0096 0.0537 | 109 *===============================================================================================================================================================================================================* 110 | CRITICAL DURATION : The critical duration for the 5% AEP is the ensemble ECN_5pct_30min. | 111 | The median pattern for this ensemble is storm 6 (storm name : ECN_5pct_30min_6). | 112 | The pattern with the greatest <Max Flow> for this ensemble is storm 3 (storm name : ECN_5pct_30min_3). | 113 *===============================================================================================================================================================================================================* 114 115 116 AEP: 50% - Max Flow (m^3/s) 117 *===============================================================================================================================================================================================================* 118 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 119 *===============================================================================================================================================================================================================* 120 | ECN_50pct_10min 0.0293 0.0308 0.0308 0.0314 0.0267 0.0258 0.0306 0.0278 0.0327 0.0290 0.0295 0.0021 0.0300 | 121 | ECN_50pct_15min 0.0307 0.0347 0.0310 0.0286 0.0239 0.0230 0.0216 0.0231 0.0279 0.0319 0.0276 0.0043 0.0283 | 122 | ECN_50pct_1_5hr 0.0225 0.0259 0.0291 0.0166 0.0327 0.0171 0.0210 0.0182 0.0333 0.0265 0.0243 0.0059 0.0242 | 123 | ECN_50pct_1hr 0.0265 0.0165 0.0195 0.0216 0.0261 0.0246 0.0207 0.0203 0.0331 0.0247 0.0233 0.0044 0.0231 | 124 | ECN_50pct_20min 0.0305 0.0300 0.0270 0.0221 0.0221 0.0274 0.0265 0.0223 0.0278 0.0314 0.0267 0.0033 0.0272 | 125 | ECN_50pct_25min 0.0219 0.0223 0.0244 0.0234 0.0286 0.0246 0.0222 0.0239 0.0316 0.0265 0.0249 0.0030 0.0241 | 126 | ECN_50pct_2hr 0.0208 0.0184 0.0194 0.0168 0.0261 0.0204 0.0273 0.0362 0.0195 0.0208 0.0226 0.0055 0.0206 | 127 | ECN_50pct_30min 0.0342 0.0214 0.0247 0.0248 0.0202 0.0243 0.0278 0.0266 0.0235 0.0238 0.0251 0.0037 0.0245 | 128 | ECN_50pct_45min 0.0290 0.0208 0.0193 0.0224 0.0274 0.0179 0.0190 0.0248 0.0316 0.0296 0.0242 0.0047 0.0236 | 129 *===============================================================================================================================================================================================================* 130 | CRITICAL DURATION : The critical duration for the 50% AEP is the ensemble ECN_50pct_10min. | 131 | The median pattern for this ensemble is storm 7 (storm name : ECN_50pct_10min_7). | 132 | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_50pct_10min_9). | 133 *===============================================================================================================================================================================================================* 134 135 136 AEP: 63.2% - Max Flow (m^3/s) 137 *===============================================================================================================================================================================================================* 138 | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median | 139 *===============================================================================================================================================================================================================* 140 | ECN_63pct_10min 0.0259 0.0272 0.0272 0.0277 0.0236 0.0227 0.0270 0.0245 0.0289 0.0255 0.0260 0.0019 0.0264 | 141 | ECN_63pct_15min 0.0272 0.0308 0.0275 0.0254 0.0212 0.0203 0.0191 0.0205 0.0247 0.0282 0.0245 0.0038 0.0250 | 142 | ECN_63pct_1_5hr 0.0195 0.0197 0.0253 0.0136 0.0284 0.0150 0.0182 0.0141 0.0264 0.0224 0.0203 0.0050 0.0196 | 143 | ECN_63pct_1hr 0.0229 0.0145 0.0171 0.0184 0.0205 0.0199 0.0179 0.0155 0.0262 0.0212 0.0194 0.0033 0.0191 | 144 | ECN_63pct_20min 0.0270 0.0266 0.0239 0.0195 0.0195 0.0243 0.0234 0.0197 0.0246 0.0276 0.0236 0.0029 0.0241 | 145 | ECN_63pct_25min 0.0194 0.0197 0.0216 0.0208 0.0235 0.0218 0.0185 0.0185 0.0244 0.0235 0.0212 0.0020 0.0212 | 146 | ECN_63pct_2hr 0.0180 0.0161 0.0169 0.0123 0.0226 0.0176 0.0237 0.0317 0.0160 0.0180 0.0193 0.0052 0.0178 | 147 | ECN_63pct_30min 0.0260 0.0189 0.0219 0.0219 0.0163 0.0215 0.0240 0.0235 0.0183 0.0205 0.0213 0.0028 0.0217 | 148 | ECN_63pct_45min 0.0256 0.0183 0.0166 0.0198 0.0243 0.0156 0.0150 0.0190 0.0244 0.0234 0.0202 0.0037 0.0194 | 149 *===============================================================================================================================================================================================================* 150 | CRITICAL DURATION : The critical duration for the 63.2% AEP is the ensemble ECN_63pct_10min. | 151 | The median pattern for this ensemble is storm 7 (storm name : ECN_63pct_10min_7). | 152 | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_63pct_10min_9). | 153 *===============================================================================================================================================================================================================* 154 [OCR of page images] 82 | ECN_20pet_1_Shr 0.0321 0.0466 0.0410 0.0269 0.0462 0.0237 0.0297 0.0347 0.0496 0.0383 0.0369 0.0084 0.0365 | ECN_20pet_lhr 0.0463 0.0253 0.0299 0.0345 0.0461 0.0433 0.0299 0.0295 0.0475 0.0377 0.0370 0.0079 0.0361 | ECN_20pet_20min 0.0408 0.0402 0.0362 0.0351 0.0299 0.0368 0.0397 0.0319 0.0392 0.0544 0.0384 0.0063 0.0380 | ECN_20pet_25min 0.0298 0.0320 0.0328 0.0317 0.0471 0.0331 0.0376 0.0416 0.0534 0.0458 0.0385 0.0077 0.0353 | ECN_20pet_2hr 0.0299 0.0322 0.0275 0.0301 0.0381 0.0292 0.0480 0.0505 0.0284 0.0295 0.0343 0.0080 0.0300 | ECN_20pet_30min 0.0584 0.0294 0.0334 0.0386 0.0379 0.0344 0.0470 0.0437 0.0431 0.0427 0.0408 0.0078 0.0406 | ECN_20pet_45min 0.0395 0.0300 0.0269 0.0357 0.0418 0.0289 0.0291 0.0357 0.0471 0.0483 0.0363 0.0073 0.0357 * | CRITICAL DURATION : The critical duration for the 20% AEP is the ensemble ECN_20pct_30min. | The median pattern for this ensemble is storm 10 (storm name : ECN_20pct_30min_10). | The pattern with the greatest <Max Flow> for this ensemble is storm 1 (storm name : ECN_20pct_30min_1). * AEP: 5% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_5pet_10min 0.0510 0.0498 0.0544 0.0589 0.0555 0.0511 0.0610 0.0546 0.0496 0.0659 0.0552 0.0051 0.0545 ECN_5pet_15min 0.0576 0.0566 0.0568 0.0573 0.0585 0.0521 0.0494 0.0518 0.0730 0.0682 0.0581 0.0069 0.0571 ECN_5pet_1_5hr 0.0648 0.0414 0.0592 0.0457 0.0425 0.0490 0.0442 0.0379 0.0376 0.0528 0.0475 0.0086 0.0449 ECN_5pet_lhr 0.0708 0.0481 0.0418 0.0602 0.0495 0.0534 0.0514 0.0524 0.0417 0.0774 0.0547 0.0111 0.0519 ECN_5pet_20min 0.0510 0.0475 0.0507 0.0653 0.0602 0.0560 0.0555 0.0769 0.0797 0.0517 0.0595 0.0106 0.0558 ECN_5pet_25min 0.0529 0.0808 0.0526 0.0448 0.0532 0.0767 0.0514 0.0517 0.0561 0.0682 0.0588 0.0114 0.0531 ECN_5pcet_2hr 0.0543 0.0362 0.0470 0.0681 0.0518 0.0423 0.0579 0.0374 0.0487 0.0564 0.0500 0.0093 0.0502 ECN_5pet_30min 0.0419 0.0556 0.0891 0.0497 0.0456 0.0590 0.0739 0.0566 0.0609 0.0657 0.0598 0.0132 0.0578 ECN_5pet_45min 0.0566 0.0485 0.0612 0.0506 0.0538 0.0501 0.0535 0.0385 0.0715 0.0709 0.0555 0.0096 0.0537 CRITICAL DURATION : The critical duration for the 5% AEP is the ensemble ECN_5pct_30min. The median pattern for this ensemble is storm 6 (storm name : ECN_Spct_30min_6). The pattern with the greatest <Max Flow> for this ensemble is storm 3 (storm name : ECN_Spct_30min_3). AEP: 50% - Max Flow (m*3/s) * lig | Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median 19 120, | ECN_S0pet_10min 0.0293 0.0308 0.0308 0.0314 0.0267 0.0258 0.0306 0.0278 0.0327 0.0290 0.0295 0.0021 0.0300 121 | ECN_50pet_15min 0.0307 0.0347 0.0310 0.0286 0.0239 0.0230 0.0216 0.0231 0.0279 0.0319 0.0276 0.0043 0.0283 122 | ECN_50pet_1_5hr 0.0225 0.0259 0.0291 0.0166 0.0327 0.0171 0.0210 0.0182 0.0333 0.0265 0.0243 0.0059 0.0242 123 | ECN_50pet_lhr 0.0265 0.0165 0.0195 0.0216 0.0261 0.0246 0.0207 0.0203 0.0331 0.0247 0.0233 0.0044 0.0231 | ECN_50pcet_20min 0.0305 0.0300 0.0270 0.0221 0.0221 0.0274 0.0265 0.0223 0.0278 0.0314 0.0267 0.0033 0.0272 | ECN_50pet_25min 0.0219 0.0223 0.0244 0.0234 0.0286 0.0246 0.0222 0.0239 0.0316 0.0265 0.0249 0.0030 0.0241 | ECN_50pet_2hr 0.0208 0.0184 0.0194 0.0168 0.0261 0.0204 0.0273 0.0362 0.0195 0.0208 0.0226 0.0055 0.0206 | ECN_50pet_30min 0.0342 0.0214 0.0247 0.0248 0.0202 0.0243 0.0278 0.0266 0.0235 0.0238 0.0251 0.0037 0.0245 | ECN_50pet_45min 0.0290 0.0208 0.0193 0.0224 0.0274 0.0179 0.0190 0.0248 0.0316 0.0296 0.0242 0.0047 0.0236 * | CRITICAL DURATION : The critical duration for the 50% AEP is the ensemble ECN_SQpct_10min. | The median pattern for this ensemble is storm 7 (storm name : ECN_SOpct_10min_7). | The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name : ECN_50pct_10min_9). * REP: 63.2% - Max Flow (m*3/s) Ensemble name Storm 1 Storm 2 Storm 3 Storm 4 Storm 5 Storm 6 Storm 7 Storm 8 Storm 9 Storm 10 Average Std. Dev. Median ECN_63pct_10min 0.0259 0.0272 0.0272 0.0277 0.0236 0.0227 0.0270 0.0245 0.0289 0.0255 0.0260 0.0019 0.0264 ECN_63pcet_15min 0.0272 0.0308 0.0275 0.0254 0.0212 0.0203 0.0191 0.0205 0.0247 0.0282 0.0245 0.0038 0.0250 ECN_63pet_1_Shr 0.0195 0.0197 0.0253 0.0136 0.0284 0.0150 0.0182 0.0141 0.0264 0.0224 0.0203 0.0050 0.0196 ECN_63pet_lhr 0.0229 0.0145 0.0171 0.0184 0.0205 0.0199 0.0179 0.0155 0.0262 0.0212 0.0194 0.0033 0.0191 ECN_63pcet_20min 0.0270 0.0266 0.0239 0.0195 0.0195 0.0243 0.0234 0.0197 0.0246 0.0276 0.0236 0.0029 0.0241 ECN_63pet_25min 0.0194 0.0197 0.0216 0.0208 0.0235 0.0218 0.0185 0.0185 0.0244 0.0235 0.0212 0.0020 0.0212 ECN_63pet_2hr 0.0180 0.0161 0.0169 0.0123 0.0226 0.0176 0.0237 0.0317 0.0160 0.0180 0.0193 0.0052 0.0178 ECN_63pcet_30min 0.0260 0.0189 0.0219 0.0219 0.0163 0.0215 0.0240 0.0235 0.0183 0.0205 0.0213 0.0028 0.0217 ECN_63pcet_45min 0.0256 0.0183 0.0166 0.0198 0.0243 0.0156 0.0150 0.0190 0.0244 0.0234 0.0202 0.0037 0.0194 CRITICAL DURATION The critical duration for the 63.2% The median pattern for this ensemble is storm 7 The pattern with the greatest <Max Flow> for this ensemble is storm 9 (storm name (storm name AEP is the ensemble ECN_63pct_10min_7). ECN_63pet_10min. ECN_63pct_10min_9).
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20169 - SBSMP/4
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APPENDIX I
XPSTORM POST DEVELOPMENT RESULTS
Site Based Stormwater Management Plan
Proposed Townhouse Development at 99, 101 & 105 Eumundi Noosa Road, Noosaville
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