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Stormwater Management Plan · MCU15/0122

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                                                              SITE BASED STORMWATER
                                                                    MANAGEMENT PLAN


                                                PROPOSED MEDICAL DEVELOPMENT AT
                                              CNR VAL CRESCENT & GOODCHAP STREET
                                                                      NOOSAVILLE


                                                                                                         Prepared for

                                                                      Noosaville Medical and Professional Centre
                                                                                               Attention: Deanne Black


                                                                                          Document Reference
                                                                                                       15099 - SBSMP/2

Record of Issue:

 Issue        Status             Author           Date          Checked            Date          Authorised           Date
                                 Remy            15 Sep      Henry Morgan         17 Sep       Henry Morgan          21 Sep
   0      For Review                                          RPEQ 11950                        RPEQ 11950
                                Petersen          2015                             2015                               2015

                                 Remy            28 Oct      Henry Morgan         04 Nov       Henry Morgan          05 Nov
   1      For Approval                                        RPEQ 11950                        RPEQ 11950
                                Petersen          2015                             2015                               2015

                                 Remy            01 Dec      Henry Morgan         02 Dec       Henry Morgan          02 Dec
   2      For Approval                                        RPEQ 11950                        RPEQ 11950
                                Petersen          2015                             2015                               2015

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, 2 December 2015




D:\JOBS\15-Jobs\15099 - Cnr Val Crescent & Goodchap Street, Noosaville\Civil\Reports\SBSMP\Current\15099 - SBSMP - Rev2.doc
Full text of sections 2 to 53 (of 55)

Section 2

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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 STORMWATER DRAINAGE SYSTEM .......................................................... 6
  4.1    Existing Infrastructure ............................................................................ 6
  4.2    Existing Drainage Patterns ........................................................................ 7
  4.3    Legal Point of Discharge .......................................................................... 7
5 STORMWATER QUANTITY ............................................................................... 8
  5.1    Design Storms....................................................................................... 8
  5.2    Rainfall Intensity ................................................................................... 8
  5.3    Times of Concentration ........................................................................... 8
  5.4    Runoff Coefficients ................................................................................ 8
  5.5    Peak Flows .......................................................................................... 9
  5.6    On-Site Detention Analysis ....................................................................... 9
  5.7    Comparison of Peak Flows at the Legal Point of Discharge ................................. 14
6 STORMWATER QUALITY ................................................................................ 15
  6.1    Construction Phase ............................................................................... 15
  6.2    Operational Phase ................................................................................ 17
7 FLOODING ............................................................................................... 23
8 CONCLUSION ............................................................................................ 24
Appendix A DETAILED SITE SURVEY ....................................................................... 25
Appendix B PROPOSED DEVELOPMENT PLANS ............................................................ 26
Appendix C CONCEPT DRAINAGE PLANS .................................................................. 27
Appendix D XP-RAFTS PRE-DEVELOPMENT HYDROGRAPHS ............................................. 28
Appendix E XP-RAFTS POST-DEVELOPMENT MITIGATED HYDROGRAPHS.............................. 29
Appendix F RATIONAL METHOD CALCULATIONS ......................................................... 30
Appendix G NOOSAVILLE FLOOD OVERLAY MAPPING .................................................... 31




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 3

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1 INTRODUCTION
This Site Based Stormwater Management Plan (SBSMP) has been prepared for the proposed
Proposed Medical Development at the Cnr Val Crescent & Goodchap Street, 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 2014 (SPP 2014);
    2. Urban Stormwater Quality Planning Guidelines 2010;
    3. The Queensland Urban Drainage Manual (QUDM);
    4. The Noosa Council Planning Scheme




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 4

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2 EXISTING SITE CONDITIONS

2.1 The Site
The site, described as Lots 6-9 on RP138011 and Lots 13-15 on RP151414, is approximately
4,325m2 (or 0.4325ha) in area. The site contains five residential dwellings with two of the lots
vacant and grassed. The natural fall of the site slopes generally from the southeast to the
northwest at an average grade of approximately 4.4%.

Refer to Figure 2.1 for a locality plan and Appendix A for the detailed site survey.




              N




                                                                                 The Site




                             Figure 2.1 – Plan of Site and Surrounding Area

2.2 Surrounding Area
The site is situated within the limits of the Noosa Council. The site is bounded by Goodchap
Street to the east and Val Crescent to the west and north; the surrounding area is
predominantly low density residential with Noosa Private Hospital located east of the site on
the opposite side of Goodchap Street.




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

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3 PROPOSED DEVELOPMENT
The proposed development will involve the construction of a two storey medical centre with a
basement level designated for parking. Parking will also be provided along the eastern side of
the site within the upper ground level and access to and from the site will be provided from
Goodchap Street via two crossovers. A ramp from the upper level car park will provide access
along the northern site boundary to the basement level car park.

Refer to Appendix B for the proposed development plans.




                         Figure 3.1 – Perspective View from Goodchap Street




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

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4 EXISTING STORMWATER DRAINAGE SYSTEM

4.1 Existing Infrastructure
Data obtained from Dial Before You Dig (DBYD), Noosa Council, Google Street View and a
detailed site survey identify the following existing drainage infrastructure:
    1. A series of existing stormwater pipes running along the western side of Val Crescent and
       a stormwater pipe adjacent to the northern site boundary within Val Cresent.
    2. Five existing stormwater gully pits within Val Crescent connected to the aforementioned
       stormwater pipes.
    3. A stormwater pipe contained within an easement that drains the above stormwater
       network. The stormwater pipe traverses the private property at 8 Val Crescent and
       discharges into the tidal Lake Doonella further west of the site.




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

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4.2 Existing Drainage Patterns
Surface runoff from the existing site currently sheet flows from the southeast corner of the site
to the northwest corner and onto Val Crescent. Runoff from the existing residential roof areas
appears to discharge directly to the Val Crescent kerb via numerous kerb adaptors. The surface
runoff and roof water outlined above is eventually collected by the existing stormwater
infrastructure within Val Crescent and discharged to Lake Doonella.


Refer to Figure 4.1 below for a stormwater infrastructure schematic.




          N




                                                                   Legend
                                                                   Drainage Path:
                                                                   SW Line:
                                                                   Easement:
                                                                   Stormwater Gully Pit:
                                                                   Stormwater Manhole:

                       Figure 4.1 - Existing Drainage Patterns & Infrastructure

4.3 Legal Point of Discharge
If pre-development flow conditions are maintained, the legal point of discharge is assumed to
be the existing stormwater infrastructure within Val Crescent.




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

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5 STORMWATER QUANTITY
A roof and allotment drainage system is to be designed to comply with:
    1. AS/NZS 3500.3:2003 - Plumbing and Drainage Part 3: Stormwater Drainage;
    2. the Queensland Urban Drainage Manual (QUDM);
    3. The Noosa Council Planning Scheme


5.1 Design Storms
As defined in Noosa Council’s Planning Scheme the following design storms were adopted:
    1. Minor Drainage System: 10 year ARI statistical flood (Q10 storm), and;
    2. Major Drainage System: 100 year ARI statistical flood (Q100 storm).


5.2 Rainfall Intensity
Rainfall intensities for this study were obtained from the IFD chart for the Noosa Region
calculated from AR&R, 1987 and sourced from the Australian Bureau of Meteorology.


5.3 Times of Concentration
Times of concentration (tc) were calculated as defined Section 4.06 of the QUDM. Refer to
Table 5-1 for the adopted tc’s and Appendix F for tc calculations.

                                      Table 5-1 – Adopted tc values
                                   Pre Development        Post Development
                                       tc (mins)               tc (mins)

                                          8.9                    5.0



5.4 Runoff Coefficients
The 10 year runoff coefficient’s (C10) were determined as defined in Section 4.05 of the QUDM.
Refer to Table 5-2 below for the adopted C10 values.

                                      Table 5-2 – Adopted C10 Values

                                         Property State                C10

                                       Pre-development                 0.74
                                       Post-development                0.86




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 9

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5.5 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 F for the Rational Method calculations.

                               Table 5-3 – Pre and Post-Development Peak Flows

                             Property State               Q10 (m3/s)        Q100 (m3/s)

                           Pre-development                  0.161                0.279
                           Post-development                 0.230                0.386


It is evident that there will be an increase between the pre-development and post-development
peak discharge flow rates. On-site detention will therefore be required to mitigate the
increased discharge flow rates to ensure pre-development flow rates can be achieved.


5.6 On-Site Detention Analysis
XP-RAFTS has been used to model the peak discharges from the site under both existing (pre-
development) and proposed (post-development) conditions, and to determine the sizing
requirements of the detention basin as outlined in Section 5.05.2 of the QUDM.

5.6.1 Pre-Development
Figure 5-1 shows the XP-Rafts model used to represent the pre-development site conditions and
Table 5.4 summarises the input parameters used in the model for the pre-development site
scenario.




                             Figure 5-1 –XP-RAFTS Pre-development Model




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 10

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                   Table 5.4 - XP-RAFTS Source Node Parameters – Pre-Development Site
                                                             Pre-Development Site
                                                                 Existing Node
                            Parameter
                                                     Sub Catchment 1      Sub Catchment 2
                                                        (Pervious)          (Impervious)
                          Initial Loss (mm)                  0                    0
                      Continuous Loss (mm/hr)               2.5                   0
                        Catchment Area (ha)               0.2927               0.1398
                       Impervious Percentage                0%                  100%
                            Vectored Slope                 4.4%                 8.0%
                             Manning's "n"                 0.050                0.015
                           IFD Coefficients             Noosaville            Noosaville
                         Storage Coefficient                N/A                  N/A


Table 5.5 summaries the pre-development peak flows calculated by XP-RAFTS for a range of
design storms. As a check to ensure the peak flows calculated from XP-RAFTS are reasonable,
peak flows utilising the Rational Method were calculated and have also been listed in Table 5.5
(refer Appendix F for detailed Rational Method calculations).

         Table 5.5 – Pre-Development Peak Discharge (XP-RAFTS and Rational Method)

                                        XP-RAFTS                           RATIONAL METHOD
             ARI
                                 Existing Peak Discharge                  Existing Peak Discharge
           (years)
                                          (m3/s)                                   (m3/s)
                                           0.150
              2                                                                   0.100
                                     (2yr 25min storm)
                                           0.199
              5                                                                   0.138
                                     (5yr 25min storm)
                                           0.222
              10                                                                  0.161
                                     (10yr 25min storm)
                                           0.255
              20                                                                  0.192
                                     (20yr 25min storm)
                                           0.271
              50                                                                  0.243
                                     (50yr 25min storm)
                                           0.301
             100                                                                  0.279
                                     (50yr 25min storm)


For pre-development peak flow rate hydrographs from XP-RAFTS refer to Appendix D.




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 11

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5.6.2 Post-Development Unmitigated
Figure 5.1 shows the XP-RAFTS model used to represent the post-development unmitigated site
conditions and Table 5.3 summarises the input parameters used in the model for the post-
development unmitigated site scenario.

Node Roof represents the post-development roof area of the proposed medical centre. Node
Ground represents the exposed car parking areas, the exposed ramp and remainder of the site.
LPD represents the legal point of discharge.




                     Figure 5.1 - XP-RAFTS Post-Development Unmitigated Model
              Table 5.6 – XP-RAFTS Source Node Parameters – Post-Development Site
                                                        Post-Development Site
                                          Roof Node                             Ground Node
       Parameter
                             Sub Catchment 1    Sub Catchment 2     Sub Catchment 1    Sub Catchment 2
                                (Pervious)        (Impervious)         (Pervious)        (Impervious)
    Initial Loss (mm)                0                   0                  0                  0
Continuous Loss (mm/hr)              0                   0                 2.5                 0
  Catchment Area (ha)                0               0.2241              0.0777             0.1307
 Impervious Percentage              0%                100%                 0%                100%
      Vectored Slope                0%                4.4%                7.1%                3%
       Manning's "n"                 0                0.015              0.035               0.015
     IFD Coefficients           Noosaville          Noosaville         Noosaville          Noosaville
   Storage Coefficient             N/A                 N/A                N/A                 N/A


Table 5.7 summaries the post development unmitigated peak flows calculated by XP-RAFTS for
a range of design storms. As a check to ensure the peak flows calculated from XP-RAFTS are
sound, peak flows utilising the Rational Method were calculated and have been also listed in
Table 5.7 (refer Appendix F for detailed Rational Method calculations).




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 12

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         Table 5.7 - Post-Development Peak Discharge (XP-RAFTS and Rational Method)
                                      XP-RAFTS                            RATIONAL METHOD
             ARI           Post-Development Peak Discharge          Post-Development Peak Discharge
           (years)                   (Unmitigated)                            (Unmitigated)
                                        (m3/s)                                   (m3/s)
                                        0.194
              2                                                                  0.144
                                     (2yr 25min storm)
                                           0.239
              5                                                                  0.198
                                     (5yr 25min storm)
                                           0.266
              10                                                                 0.230
                                     (10yr 25min storm)
                                           0.306
              20                                                                 0.274
                                     (20yr 25min storm)
                                           0.325
              50                                                                 0.346
                                     (50yr 15min storm)
                                           0.359
             100                                                                 0.386
                                     (50yr 15min storm)


As seen in Table 5.5 and Table 5.7 there will be an increase in peak flows between pre and
post-development conditions as a result of the proposed development. Consequently on-site
detention will be required.

5.6.3 Post-Development Mitigated
It is proposed to provide underground detention storage within the southern portion of the site.
The detention storage is to be implemented as part of the internal stormwater drainage
network. The underground detention basin will receive roof water from the total roof area.

Figure 5.2 shows the XP-RAFTS model used to represent the post-development mitigated site
scenario for the proposed development. The model is the same as the post-development
unmitigated model used in Section 5.6.2 above however the detention basin has been added to
receive runoff from the Roof Node. Flows (>Q20) that exceed the capacity of the roof water
guttering and down pipes are diverted directly to the LPD. For explanation of what each node
represents refer Table 5.3.




                      Figure 5.2 - XP-RAFTS Post-Development Mitigated Model




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 13

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Source node parameters used in the post-development mitigated model are as per the post-
development un-mitigated model documented in Table 5.3.

5.6.4 On-Site Detention
In order for the post-development stormwater discharge conditions to match the pre-
development conditions it is proposed to provide on-site detention in an underground detention
basin to be located within the southern portion of the site. Refer to Appendix C for the
Concept Drainage Plans.

The proposed basin will have the following dimensions:

       Basin base area = 38m2;
       Maximum basin depth = 2.0m;
       Maximum basin volume = 76m3
       Discharge orifice 1 diameter = 0.14m;
       Discharge orifice 1 centre height = 0.07m
       Discharge orifice 2 diameter = 0.15m;
       Discharge orifice 2 centre height = 1.1m




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 14

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5.7 Comparison of Peak Flows at the Legal Point of Discharge
All roof runoff generated from the propose development will be detained within the detention
basin. Table 5.6 below provides a comparison of the pre-development and post-development
(mitigated) peak flows at the legal point of discharge (LPD) for the proposed development.

                            Table 5.6 - Comparison of Peak Flows at the LPD

                        XP-RAFTS                        XP-RAFTS
    ARI                                                                                      Difference
                   Pre-developed Flows           Developed Flows (Mitigated)
  (years)                  (m3/s)                            (m3/s)                    (m3/s)               %
                           0.150                              0.133
     2                                                                                 -0.017             -11.3
                      (2yr 25min storm)                 (2yr 25min storm)
                           0.199                              0.182
     5                                                                                 -0.017               -8.5
                      (5yr 25min storm)                 (5yr 25min storm)
                           0.222                              0.204
     10                                                                                -0.018               -8.1
                     (10yr 25min storm)                (10yr 25min storm)
                           0.255                              0.231
     20                                                                                -0.024               -9.4
                     (20yr 25min storm)                (20yr 25min storm)
                           0.271                              0.243
     50                                                                                -0.028             -10.3
                     (50yr 25min storm)                (50yr 25min storm)
                           0.301                              0.274
    100                                                                                -0.027               -9.0
                     (50yr 25min storm)                (100yr 25min storm)
    Notes:
        1.   Additional detention volume will be achieved in the internal roofwater and stormwater pipes.




The XP-RAFTS hydraulic modelling has demonstrated that the proposed on-site detention to be
implemented will maintain pre-development flows (or less) for all design storms at the LPD.
Refer Appendix D and to Appendix E for peak flows at the LPD for the pre-development and
post-development mitigated site, as summarised in Table 5.6 above.

Refer to Appendix C for concept drainage plans of the proposed development.

This plan is required to be confirmed during detailed design to ensure that the operational
requirements are considered suitable. Substantial changes may require resubmission of this
report to the local authority.




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

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6 STORMWATER QUALITY
The following section of this report outlines the potential contaminants and proposed solutions
to be incorporated during the construction and operation of this development.


6.1 Construction Phase
Sediment generated during the construction phase shall be dealt with in accordance with an
Erosion and Sediment Control Plan to be prepared by Morgan Consulting Engineers and kept on
site during the construction phase.

Potential sources of contaminants identified for the construction phase of the development are
outlined in Table 6.1 together with proposed stormwater quality improvement devices,
management and maintenance procedures.




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

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   Table 6.1 - Potential Contaminants and Proposed Treatments
                                                                                     Proposed Treatment
                                                    Management /
       Pollutant         Potential Source                                         Device and Maintenance
                                                Maintenance Procedures
                                                                                          Procedure
      Sediment &       Excavated material,     Provision of sediment and           Sand filled filter socks.
        Eroded             fill material,       silt barriers to the site             Removal of excess
       material          exposed ground,        drainage entry and exit              sand/silt build up at
                           Stockpiles of                 points.                 regular intervals and after
                             material.                                                   every storm.
          Dust             Stockpiles of        Covering the material or         Coverage of material with
                        material, exposed      wetting it down at regular        plastic, geotextile, surface
                               ground.                 intervals.                 binding agents or regular
                                                                                           watering.
         Litter        Refuse generated by       Construction waste is to           Industrial bin is to be
                              staff.              be cleaned off the site            provided within the
                                                area and installed into an        construction area - to be
                                                    industrial bin then             emptied on at least a
                                                   removed by a refuse                  weekly basis.
                                                  collection contractor.
       Concrete       Washing of concrete       Provision of a closed area       Liquids to be removed by a
                         trucks/tools to         onsite for washing off of            waste collection
                      remove wet/unused              concrete slurries.            contractor. Solids to be
                            concrete.                                             placed into a refuse bin.
       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 spillage      containment area is to               area. This is to be
     thinners etc.)        of product.         stop escape. The material         impermeable and of a size
                                                   is to be treated (as          to permit mixing/transfer,
                                                 required) and removed           and with a storage volume
                                               and cleaned by a licensed             of twice the largest
                                                        contractor.                     container used.
                                               Minor spillage outside this         Treatment of spills is to
                                                area shall be cleaned up               occur on site. No
                                                with cloths and disposed         discharge of treated water
                                                   of to waste via the            to the stormwater system
                                                      industrial bin.            is to occur without council
                                                                                  approval. Incidents are to
                                                                                   be reported to the EPA.
      Wastewater        Spillage from the      A licensed contractor shall            No leakage is to be
                        relocation of the          remove any residue               permitted to enter the
                        existing sewerage      sewage from unused pipes           groundwater or discharge
                          reticulation.        and contaminated soils are             to the stormwater
                                                to be disposed of via the                   system.
                                                      industrial bin.




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

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6.2 Operational Phase
The proposed development involves the development of land greater than 2,500m2.
Consequently, State Planning Policy 2013 (SPP 2013) is triggered.

Water quality objectives (WQO’s) for South East Queensland as set out in the Urban Stormwater
Quality Planning Guidelines 2010 should be achieved by identifying and adopting best practise
techniques in accordance with the abovementioned guidelines. Refer to Table 6.2 for target
WQO’s.

                          Table 6.2 – 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%




6.2.1 Sources of Contaminants
Potential sources of contaminants and stormwater quality improvement devices identified for
the operational phase of the development are outlined in Table 6.3.

     Table 6.3 - 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
                        Sedimentation of
       Secondary                                125um -
                        coarse to medium                        Swales, sedimentation basins, ponds
       Pollutants                               5000um
                            sediment
                           Enhanced                             Bio-retention basins, constructed
                                                  10um –
                      sedimentation of fine                    wetland macrophyte zones, other bio
                                                  125um
                          particulates                                    technologies

        Tertiary     Adhesion and filtration
                                                0.45um –      Constructed wetland macrophyte zones,
       Pollutants    of very fine / colloidal
                                                  10um                other bio technologies
                            sediment

                       Biological uptake of                   Constructed wetland macrophyte zones,
                                                <0.45um
                        dissolved particles                           other bio technologies




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 18

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6.2.2 Proposed Treatment Train
Given the current review being undertaken within Noosa Council regarding the acceptance of
various stormwater quality treatment technologies, two separate options have been provided
for stormwater quality treatment for the proposed development. The provision of two separate
options at this conceptual stage ensures that the development can be provided with a
stormwater quality treatment system that meets Council’s future requirements whilst
optimising broader development outcomes.
Option 1
The proposed treatment train has been modelled using the following methodology:
    1. Roofwater runoff is captured and directed to the proposed underground on-site
       detention system. Outflow from the detention system is directed to a proposed
       bioretention basin (Bio-retention Basin 1) to be located at the basement level within the
       south-western portion of the site.
    2. Surface runoff within the upper level car parking and access area will sheet flow into
       two proposed bio-retention basins to be located along the eastern boundary of the site.
    3. Surface runoff from the exposed ramp and basement level areas along the western site
       boundary will be collected by various pits containing litter baskets. Additionally, a small
       swale along the southern site boundary is proposed to capture minor quantities of runoff
       from the southern portion of the site and convey the flows into Bio-retention Basin 1

Refer to Table 6.4 for details of the treatment train assets.

                                      Table 6.4 - Proposed Treatment Assets

            Treatment         Treatment
                                                                    Description
              Level             Asset

             Primary/                               3m wide grassed swale along southern site
                            Grassed Swale
            Secondary                               boundary.
                                                    5 x Enviropod 200 Series Litter Baskets within
             Primary        Litter Baskets
                                                       the gully pits on the basement level.
                                                Bio-retention Basin 1
                                                    - 70m2 Filter Media Area.
                                                    - 400mm depth of filter media;
                                                    - 200mm extended detention depth

                                                Bio-retention Basin 2
           Secondary/       Bio-Retention           - 20m2 Filter Media Area
            Tertiary            Basins              - 400mm depth of filter media;
                                                    - 200mm extended detention depth

                                                Bio-retention Basin 3
                                                    - 20m2 Filter Media Area
                                                    - 400mm depth of filter media;
                                                    - 200mm extended detention depth




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 19

                                                                                          15099 - SBSMP/2
                                                                                                     Page 19




Option 2
The proposed treatment train has been modelled using the following methodology:
    1. Roofwater runoff is captured and directed to the proposed underground on-site
       detention system. Outflow from the detention system is directed to a proposed Bio-
       retention Basin 1 to be located at the basement level within the south-western portion
       of the site.
    2. Surface runoff within the upper level car parking and access area will be captured by
       various pits containing litter baskets and then directed to an end-of-line proprietary
       stormwater quality treatment device to be located within the upper level landscaping
       area.
    3. Surface runoff from the exposed ramp and basement level areas along the western site
       boundary will be collected by various pits containing litter baskets. Additionally, a small
       swale along the southern site boundary is proposed to capture minor quantities of runoff
       from the southern portion of the site and convey the flows to Bio-retention Basin 1.

Refer to Table 6.5 for details of the treatment train assets.

                                      Table 6.5 - Proposed Treatment Assets

            Treatment         Treatment
                                                                    Description
              Level             Asset

             Primary/                               3m wide grassed swale along southern site
                            Grassed Swale
            Secondary                               boundary.
                                                    5 x Enviropod 200 Series Litter Baskets within
                                                    the gully pits on the basement level and 4 x
             Primary        Litter Baskets
                                                    Enviropod 200 Series Litter Baskets within the
                                                    upper level car park

           Secondary/                               Humes - Jellyfish JF-1200-2-1 underground
                           Humes - Jellyfish
            Tertiary                                stormwater quality treatment device


                                                -    70m2 Filter Media Area.
           Secondary/        Bioretention
                                                -    400mm depth of filter media;
            Tertiary            Basin 1
                                                -    200mm extended detention depth



6.2.3 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 Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 20

                                                                                          15099 - SBSMP/2
                                                                                                   Page 20




6.2.4 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 6.6 and Table 6.7.

                                         Table 6.6 – MUSIC Parameters

                      Parameter                                Data Used

                     Rainfall Data          Rainfall Station 40059, COOROY 1973 to 1983

                  Modelling Timestep                           6 minutes

                        Routing                   No routing drain links were adopted




                        Table 6.7 – Catchment Runoff Generation Parameters

                                                                     Urban Commercial
                                  Parameter
                                                                        Catchment

                             Rainfall Threshold                                  1

                         Soil Storage Capacity (mm)                              18

                    Initial Storage Capacity (% capacity)                        10

                            Field Capacity (mm)                                  80

                     Infiltration Capacity Coefficient a                     243

                     Infiltration Capacity Coefficient b                     0.60

                             Initial Depth (mm)                                  50

                          Daily Recharge Rate (%)                                0

                           Daily Baseflow Rate (%)                               31

                        Daily Deep Seepage Rate (%)                              0




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 21

                                                                                 15099 - SBSMP/2
                                                                                          Page 21




Schematics of the two MUSIC models can be seen in Figure 6.1 and Figure 6.2 below.




                            Figure 6.1 – MUSIC Model - Option 1 Schematic




                            Figure 6.2 – MUSIC Model - Option 2 Schematic



Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 22

                                                                                 15099 - SBSMP/2
                                                                                          Page 22




6.2.5 MUSIC Modelling Results
Figure 6.3 and Figure 6.4 summarise the annual pollutant load reductions achieved by the two
stormwater quality treatment train options.




                            Figure 6.3 – MUSIC Modelling Results – Option 1




                            Figure 6.4 – MUSIC Modelling Results – Option 2

The modelling results demonstrate that each option meets the annual pollutant load reduction
targets given in Table 6.2. 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 Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 23

                                                                                 15099 - SBSMP/2
                                                                                          Page 23




7 FLOODING
The subject site has been assessed for any potential impact that flooding may have on the
proposed development. It has been determined that the site is not flood affected as indicated
in Noosa Council’s Flood Overlay Mapping. It is noted that the subject site lies wholly outside
the flagged areas that may be flood affected. Accordingly, definition of flood immunity levels is
not necessary.

Further to the above, it is noted that all proposed floor levels are higher than the stormtide
defined flood level of 2.8m AHD.

Refer to Appendix G for Noosa Council’s Flood Overlay Mapping of the Noosaville region.




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 24

                                                                                 15099 - SBSMP/2
                                                                                          Page 24




8 CONCLUSION
The proposed development located at Cnr Val Crescent & Goodchap Street, Noosaville has been
assessed for its impact of the quantity and quality of stormwater runoff.

There are existing stormwater gully pits within Val Crescent adjacent to the site’s western
boundary. If the proposed development maintains pre-development flow conditions, the
existing stormwater infrastructure within Val Crescent is considered the legal point of
discharge.

Mitigation of increased stormwater runoff from the proposed site is required in order for the
post-development stormwater discharge conditions to match the pre-development conditions.
With the aid of XP-RAFTS, as recommended in the QUDM, a detention volume requirement of
76m3 has been determined to maintain pre-development peak flow rates for the proposed
development up to a Q100 storm event. This storage volume shall be provided within an
underground detention basin to be located within the southern region of the site.

Sediment generated during the construction phase shall be dealt with in accordance with an
Erosion and Sediment Control Plan to be maintained by Morgan Consulting Engineers and kept
on site during the construction phase.

As the development entails a material change of use for urban purposes, which will involve a
land area greater than 2,500m2, the State Planning Policy 2013 (SPP 2013) is triggered. The
water quality objectives (WQO’s) for South East Queensland can be achieved by treating the
roof and surface stormwater runoff from the proposed development prior to discharging to the
existing stormwater infrastructure within Val Crescent.

The subject site is not flood affected as indicated in Appendix G. Therefore, the proposed
development will achieve adequate flood immunity.




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 25

                                                                                 15099 - SBSMP/2
                                                                                          Page 25




                                               Appendix A


                                     DETAILED SITE SURVEY




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 26

 

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MAX WATTERSON

ASSOCIATES

12 Maple Street
PO Box 639
Cooroy Qld 4563

Ph. (07) 54426121
Fax. (07) 54425125

Email. [email protected]

RP138011
U3. 8 Ox
281 aye
soogRcP  ® AN ok
12.91 oh ope
3008 RCP Pox
BM: Nail in Kerb 1.3.04 RP151414
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*
Scale 1:400 - Lengths are in Metres
| | | | | | | | | |
4 0 4 8 12 16 20 24 28 32 36 40 44
client! MEDICENTRE Project: Plan 1 of 4 NOTE:

PLAN SHOWING
DETAILS OF LOTS 6-9

PROPERTIES

Date: 26-05-15

purposes only.

 

 

ON RP138011 & LOTS Scale: 1:400 where evident on surface.
13-15 ON RP151414. Datum: AND Buildings not located.
Origin: Feo
PARISH: TEWANTIN
Cont.Int: 0.5m

COUNTY: MARCH

 

LOCAL GOVT: NOOSA S.C.

Ref:
15-3893AA

LOCALITY: NOOSAVILLE

 

 

 

 

This plan has been prepared for design

Underground services not located except

 

 

Section 27

                                                                                 15099 - SBSMP/2
                                                                                          Page 26




                                               Appendix B


                            PROPOSED DEVELOPMENT PLANS




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 28

                                                                                                                  VA
                                                                                                                       L
                     4.00

                                       11.25
                                                                                                                                CR
                                      322°00'                                19.817
                                                                                                                                      ESC
                                                                                                                                                     ENT
                    4.50
                                                                            329°45'




                                                                                                                                                      44.4
                                                                                                                                                           96
                                                                                                                                                                                                                                                         01                 PERSPECTIVE VIEW FROM ROUNDABOUT
              5.00
                                                                                                                                                     337°
                                                                                                                                                          30'


                                                                                                                                                                                                                              PROJECT SUMMARY
                235°36'
                          30.06




                                                                                                                                                                                                                              LOT 6-9 ON RP138011 & LOT 13-15 ON RP151414




                                                                                                                                                                                      14
                                                                                                                                                                                          °4
                                                                                                                                                                                     7.

                                                                                                                                                                                           5'
                                                                                                                                                                                                                              PARISH: TEWANTIN




                                                                                                                                                                                     96
                                                                                                                                                                                                                              COUNTY: MARCH




                                                                                                                                                                                                                   CRESCENT
      5.50

                                                                                                                                                                                                                              SITE AREA 4325m2

                                                                                                                                                                                                                              LEVEL 1 G.F.A                             =           1746m2
                                                                                           PROPOSED MEDICAL BUILDING                                                                                                          LEVEL 2 G.F.A                             =            724m2
     6.00
                                                                                                                                                                                                                              TOTAL G.F.A.                              =           2470m2

                                                                                                                                                                                                                              CAFE                            =                    10 SEATS




                                                                                                                                                                                                       52°00'00"
                                                                                                                                                                                               35.25
                                                                                                                                                                                                                              CARPARKING REQUIRED             =        1 CARPARK / 20m2
                                                                                                                                                                                                                                           2470m2 / 20        =         123.5 CARPARKS




                                                                                                                                                                                                                   VAL
     6.50                                                                                                                                                                                                                                                                                                                                                                                               SUBJECT
                                                                                                                                                                                                                              CARPARKING PROVIDED:                                                                                                                                                      SITE
       232°00'00"




                                                  01    02     03      04             05    06                                  15    16        17      18      19   20
                    30.175




                                                                                                                                                                                                                              BASEMENT CARPARKING             =                            97
                                                                                                                                                                                                                              LEVEL 1 CARPARKING              =                            26
                                                       07      08      09     10      11    12   13   14
                                                                                                                                                                                                                              ON STREET REPLACEMENT           =                            02
                                                                                                                                21   22    23   24      25      26   27   28
                                                                                                                                                                                                                              CARPARKING

     7.00                         ENTRY                                                                             EXIT
                                                                                                                                                                                          0'
                                                                                                                                                                                      °0




                                                                                                                                                                                                                              TOTAL CARPARKING                =                           125
                                                                                                                                                                                     97




                                                                                                                                                                               PMT
                                                                                                                                                                                          69




                                                                                                                   142°00'00"
                                                                                                                                                                                          5.




                                                               BUS                                                  76.445
                                                             SHELTER                                                                                                                                                          SERVICE VEHICLES PROVIDED:                1 x AMBULANCE
                                                                                                                                                                                                                                                                        1 x MRV
                                  LEFT IN        PROPOSED                                             PROPOSED
                                                                                                                   LEFT OUT
                                                 VEHICULAR                                            VEHICULAR
                                                 CROSSOVER                                            CROSSOVER                                                                                                                                                         1 x WCV

                                                                                                                                                                                                                              SITE COVER                      =         2006m2 or 46.3%
                                                GOODCHAP                                          STREET                                                                                                                      LANDSCAPED AREA                 =              787m2 or 18%

                                                                                                                                                                                                                              NOTE:
                                                                                                                                                                                                                              ALL CARPARKING IN ACCORDANCE WITH AS2890.1
                                                                                                                                                                                                                              MINIMUM TYPICAL DIMENSIONS:
01                                          SITE PLAN                                                                                                                                                                                            ALL AISLES:  6.2M WIDE
                                                                                                                                                                                                                                                                                                        02                   LOCATION PLAN
                                                                                                                                                                                                                                                 SINGLE CAR:  5.4 x 2.4M




PROPOSED MEDICAL DEVELOPMENT                                                                                                                                                               MEDICENTRE PROPERTIES PTY LTD                             development approval
                                                                                                                                                                                                                                                     scale: 1:500@A3
                                                                                                                                                                                                                                                     issue:
                                                                                                                                                                                                                                                            1:250@A3
                                                                                                                                                                                                                                                                  03
                                                                                                                                                                                                                                                                  05        date: 27.11.2015    north

GOODCHAP STREET, NOOSAVILLE                                                                                                                                                                SITE PLAN                                                 1534/DA/01
                                                                                                                                                                                                                                                                                                             The designs, drawings and specification are copyright and always remain the property of Blackburne Jackson Design Pty Ltd.

Section 29

                      4.00                                                                     LOWER BIORETENTION ZONE
                                                                                               REFER SWMP BY CIVIL ENGINEER
                                                                                               FOR EXTENT (EXTENT INDICATED


                                                                                                                                                                                                                                           VA
                                                                                               BY HATCHING)



                    4.50
                                                                                                                                                                                                  ACOUSTIC BARRIER
                                                                                                                                                                                                  REFER NOISE
                                                                                                                                                                                                                                                              L                 CR
                                    EMT
                                                                                                                                                                                                  ASSESSMENT REPORT
                                                                                                                                                                                                                                                                                                   ESC
                                                                                                                                                                                                                                                                                                                           ENT
                                                                                                     LANDSCAPE
                                                                                                                              A                                                                                                                                                                                                                                   ACOUSTIC BARRIER
                                                                                                                              06                                                                                                                                                                                                                                  REFER NOISE
                                                                                                                                                                                                                                                                                                                                                                  ASSESSMENT REPORT




                                                                                                                                                                                                                                                                    2050
                                                                                                                                                                                                                                                                                                                                                                                      PERIMETER PLANTING
                                                                                                                                                                                                                                                                                                                                                                                      INTO NATURAL GROUND




                                                                         5400




                                                                                                           5400
                             3149




                                                                                                                                                                                                                                                                140
                   5.00
                                                                    29                    30         31            32           33           34           35           36              37            38                                                                                                                                B




                                                                                                                                                                                                                                                             5400
                                                              126                                                                                                                                                                                                                                                                      05
                                                                             2600          2750          2750          2600        2750        2750         2600        2750                2750       2900
                                                                                                                                                                                                                                         39




                                                                         2620
                                                                                                                                                                                                                                            40
                                                                                                                                                                                                                                         2950
                                     DETENTION




                                                                                                                                                                                                                                                                     41




                                                                                                           6200
                                                              125                                                                                                                                                                            2600
                                       TANK




                                                                                                                                                                                                                            ACOUSTIC BARRIER                         2600         42



                                                                         2600
                                                                                                                                                                                                                            REFER NOISE
                                                                                                                                                                                                                     RL 3.500                                                     2750          43
                                                                                                                                                                                                                            ASSESSMENT REPORT                                                   2600         44




                                                                                                                                                                                                                                                  6200
                                                              124                                                                                                                                                                                                                                            2750       45
                                                                         2600                                                                                                                                                                                                                                                      46                            STAF                                                                                                                                          WALL TO RL 5.975
                                                                                                          50            51           52           53           54           55              56                                                                                                                           2750                                        F                                                                                                                                         ACOUSTIC BARRIER
                                                                                                                                                                                                                                                                                                                                               47                             STAF
                                                                                                                                                                                                                                                                                                                                    2600                                          F                                                                                                                            REFER NOISE
                                                                                                                                                                                                                                                                                  ACOUSTIC WALL REFER                                           2750        48
                                                              123                                                                                                                                                                                                                                                                                                                                                                                                                                              ASSESSMENT
                                                                                                                                                                                                                                                                                  NOISE ASSESSMENT                                                                       49




                                                                                                           5400
                                                                                                                                                                                                                                                                                                                                                            2750                                                                                                                                               REPORT
                                                                         2750




                                                                                                                                                                                                                                                                                  REPORT                                                                                  2900
             5.50                                                                                                                                                                                                      BIKE AND MOTORCYCLE
                           3977
                                                        122
                                                                         2750




                                                        121
                                                                                                           5400
                                                                         2600




                                                                                                                                                                                                                                                                                                              PLANT                                                       190    300                     5800                      190               2000
                                                                                                                                                                                                                                                                                                                                   6200




                                                                                                                                                                                                                                                                                                                                                                                             2000@ 1:8
                                                        120




                                                                                                                                                                                                                                                                                                                                                                                                         245mm
                                                                                                          57            58           59           60           61           62               63           64            65          66          67                  68          69            70
                                                                         2750
   45790




                                                                                                                                                                                                                                                                                                                                                                                                                 FALL
                                                                                                            2750         2600         2750         2750         2600          2750            2750         2750          2750         2600        2750               2750          2600          2900
                     3m EMT                                                                                                                                                                                                                                                                                                                           97
                                                        119




                                                                                                                                                                                                                                                                                                                                               2600
                                                                                                                                                                                                      BASEMENT 95 CARS TOTAL
                                                                         2750




                                                                                                           6200




           6.00

                                                                                                                                                                                                                                                                                                                                                      98
                                                        118




                                                                                                                                                                                                                                                                                                                                               2750
                                                 5400                              6350               2750          2600           2750       2750          2900                                               2600          2750        2750        2600                2750          2750        2600       2750                 6350                          5400
                                                                         2600




                                                                                                                                                                                                                                                                                                                                                                                                 2200mm FALL
                                                                                                    71            72          73          74           75                                                  76           77            78          79                80            81            82           83




                                                                                                                                                                                                                                                                                                                                                                                                 12500@1:6
                                                                                                                                                                                                                                                                                                                                                      99
                                                        117




                                                                                                                                                                                                                                                                                                                                               2750
                                                                         2750




                                                                                                           5400




                                                                                                                                                                                                                                                                                                                                                                                                                                                                   41633
                                                                                                                                                                                                                                                                                                                                                      100
                                                        116




                                                                                                                                                                                                                                                                                                                                               2600
                                                                         2750




                                                                                                                                                                            LIFT         LOBBY
                                                                                                                                                                                                                                                                                                                                                      101




                                                                                                                                                                                                                                                                                                                                                                                            2000 @ 1:8
                                                        115




                                                                                                                                                                                                                                                                                                                                               2750
           6.50
                                                                            2900




                                                                                                           5400




                                                                                                                                                                                                                                                                                                                                                                                                         245mm

                                                                                                                                                                                                                                                                                                                                                                                                                 FALL
                                                                                                                                                                                    UP
                                                                    1200 190




                                                                                                                                                                                                                                                                                                                                                      102




                                                                                                                                                                                                                                                                                                                                               2750
                                                   ST                                                                                                                              M.S.B.
                                                                                                    84            85          86          87           88                                                  89           90            91          92                93            94            95           96
                                                                         190




                                                                                                                                              2750          2900              5300           1277                                                                                                                                                     103




                                                                                                                                                                                                                                                                                                                                               2600
                                                                                                                                                                                                                                                                                         LINE OF BUILDING OVER
                                                                                                           6200
                                                                         6200




                                                                                                                                                                    RL 3.500                                                                                                                                                                          104




                                                                                                                                                                                                                                                                                                                                               2900
                                                                                                                                                                                                                2900           2750        2750          2750              2750          2600         2750          2750        2600        2900                 5400
                                                                                                                                                                                                               114           113         112           111               110           109           108          107        106        105




                                                                                                                                                                                                                                                                                                                                               5400
            7.00




PROPOSED MEDICAL DEVELOPMENT                                                                                                                                                             MEDICENTRE PROPERTIES PTY LTD                                                                                        development approval
                                                                                                                                                                                                                                                                                                              scale: 1:250@A3
                                                                                                                                                                                                                                                                                                              issue:    03
                                                                                                                                                                                                                                                                                                                        05      date: 27.11.2015                        north

GOODCHAP STREET, NOOSAVILLE                                                                                                                                                              FLOOR PLAN BASEMENT                                                                                                  1534/DA/02
                                                                                                                                                                                                                                                                                                                                                                                       The designs, drawings and specification are copyright and always remain the property of Blackburne Jackson Design Pty Ltd.


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Z| 4 \ 3 |
}___j | oe | 700 3 |
16); — S}—- — — Sala = = = =l— = a cs ne in 2 aan eae |
2 ~ | FA
| ai ~ LIFT LOBBY | a
~ 4
| + ~ F 101 2
115 ~ | I J =
6.50 | g o \ Q |
p | 8 3 - ca N
‘ | 3 4 ° : wi + \l
- |
8 MSB. 3 |
| sa 84 J [85 86 87 88 89 90 91 92 93 94 los 96 ai |
S| r ~
| 2750 2900 5300 1277, | 7 .
= / \
LINE OF BUILDING OVER ~— 3 \ |
8 4 \
S| ll ~ 4 \ |
a g RL 3.500 3 .
as N 3
. S|
, 2900, 2750 ,* 2750 _, 2750 , 2750 , 2600 , 2750 , 2750 , 2600~, 2900. \
+ + +S oy + + + + + 4 \
*~ 114 113 112 > s |1tt 110 (109 108 107 106 105
7.00 y “TS
~

 

 

 

 

 

 

 

 

PROPOSED MEDICAL DEVELOPMENT MEDICENTRE PROPERTIES PTY TD or vaiess

issue: 05 date: 27.11.2015

GOODCHAP STREET, NOOSAVILLE FLOOR PLAN BASEMENT 1534/DA/02

Section 30

                                                                                                                                                                                                                                        VA
                                                                                                                                                                                                                                                                    L       CR
                                                                                                                                                                                       BASEMENT
                                                                                                                                                                                                                                                                                         ESC
                                                                                                                                                                                                                                                                                                                 ENT
                                                                                                              WINDOW                                                                   ROOF BELOW
                             4.50




                                                                                     SETBACK
                                                                                                              SHADE




                                                                                                                                      SETBACK
                                                                              6000
                                                                                                              DASHED




                                                                                                                                         4828
                                                                      EMT
                                                                                                                                                  A
                                                                                                                                                  06                                   WINDOW
                                             4900                                                                                                                                      SHADE
                                                                                                                                                                                       DASHED




                                                                                                                                                                                                                       4500
                                                                                                                                                                                                                       ACK




                                                                                                                                                                                                                                                          ACK
                                                                                                                                                                                                                                                        2080
                                                                                                                                                                                                                                                                                                       WINDOW




                                                                                                                                                                                                                         SETB
                                                                                                                                                                                                                                                                                                       SHADE




                                                                                                                                                                                                                                                     SETB
                                                                                                                                                                                                                                                                                                       DASHED                    ROOF OVER
                                                                                                                                                                                                                                                                                                                                 DASHED

                                                                                                                                                                                                                                                                                                                                                              WINDOW
                            5.00
                                                                                                                                                                                                                                                                                                                                                              SHADE




                                                                                                                                                                                                                                                                                                             ACK
                                                                                                                                                                                                                                                                                                                                      B                       DASHED




                                                                                                                                                                                                                                                                                                          5000
                                                                                                                                                                                                                                                                                                                                      05




                                                                                                                                                                                                                                                                                                        SETB
DETENTION
TANK                                                                                                                                                                                                                               WINDOW SHADE
BELOW                                                                                                                                                                                                                              DASHED




                                                                                                                                                                                                                                                                                                                                                                                   2100
WINDOW
SCREEN
                                                                                                                                                                                                                                   BASEMENT ROOF
                                                                                                                                                                                                                                       BELOW
                                                                                                                           LEVEL OVER DASHED


                                                                                                                                          32875                                                                                              10000                                                                     22880
                      5.50
                                      4500
                                    SETBACK
                                                                                                                                                                                                                                                                                                                                                                                                                                                                   WINDOW




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  CRESCENT
                                                                                                                                                                                                                                     AMENITIES                                                                                                                                                                                                                     SCREEN
            40385




                                                                                                                                                                                                                                END OF TRIP FACILITIES




                                                                                                                                                                                                                                                                                                                                                                                                                                                           27795
                                                                                                                                                                                                                                                                                                                                                                                                   8290
                                                                                                                                                                                                                                                                                                                                                                                                SETBACK


WINDOW
SCREEN
                               3m EMT
                                                                                                                                          G.F.A.
                    6.00
                                                                                                                                          1746 m2
                                                                                                                                                                                                                                             CAFE

                                    6425




                                                                                                                                                                                                                                                                                                                                                                                        2200mm FALL
                                                                                                                                                                                                                                                                                                                                                                                        12500@1:6




                                                                                                                                                                                                                                                                                                                                                                                                                              LANDSCAPE
                                                                                                                                          RL 6.300                                                                                                                                                                                                                                                                                                                                                    ACOUSTIC
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      BARRIER REFER
                                                                                                                                                                                                                     ENTRY                                                                                                                                                                                                                                                                            NOISE
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      ASSESSMENT
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      REPORT




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  VAL
                                                                                                                                                WALKWAY                                                                                                                                                        WALKWAY




                                                                                                                                                                                                                                                                    11175
                                                                                                                                                                                          LIFT




                                                                                                                                                                                                                                      7045
                                     4043
                                                          REFUSE ROOM
                                                                                                                                                                           1450




                                   SETBACK




                                                                                                                                                                                                                                                                                                                                                                                   2000 @ 1:8




                                                                                                                                                                                                                                                                                                                                                                                                                                                           6853
                    6.50




                                                                                                                                                                                                                                                                                                                                                                                                245mm
                                                                                                                                                                                                                                                                                                                                              5400
                                                                                                                                      PWD                  PWD                                   UP FROM                              AMB                 LOAD                             PWD                    PWD




                                                                                                                                                                                                                                                                                                                                                                                                         FALL
                                                                     UP
                                                                                                                                                                           5400




                                                                                                                                                                                                 BASEMENT
REFUSE                                   REFUSE
COLLECTION                             COLLECTION                  UP FROM
                                                                   BASEMENT
VEHICLE                                                                                        01      02             03             04                   05         06                                                                                                      15           16                    17          18         19            20
SHOWN
                                                                                                                                                                                                        CONNECTION



DASHED                                                                                          2900    2600           2750           2550        2400     2550         2750                                                            3500                    3600              2900     2400        2400         2400       2600        2600       2600           5670                               3900                              1510
                                                                                                                                                                                                        PEDESTRIAN




10240mm X
2500mm
                                                                                                                                             RL 6.200
                                                                                                                                                                           6200




                                                                                                                                                                                                                                                                    6200
                                                                                                                                                                                                                                                                                                                                                                          LINE OF ROOF




                                                                                                                                                                                                                                                                                                                                              6800
ACOUSTIC                                                                                                                                                                                                                                                                                   28 CARS                                                                        OVER CARPARK
BARRIER REFER                                4235                                                                                                               43065                                                                                                                                                  22880                                              SHOWN
NOISE                         2000                                                                                                                                                                                                                                                                                                                                        DASHED
                                                           FA 15




                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           1M HIGH WALL
                                                         m 1:
                                                             LL




ASSESSMENT                                                                                              2600           2600           2600        2600     2600         2600       2600          2600         600        6600                         6000                  4070         2600      2600           2600         2600        2600       2600    2600
                                                      0m 0 @




REPORT                                                                                                                                                                                                                                                                             EXHAUST
                                                    75 0 0




                                                                                                       07             08             09          10       11         12           13       14
                                                      11




                                                                                                                                                                                                                                EXHAUST                                     21        22          23           24           25         26            27      28
                                                                                                        REPLACEMENT



                                                                                                                       REPLACEMENT




                                                                                                                                                                                                                                                       7400@ 1:27
                                                                                                                                                                                                                                                      275mm FALL
                                                                                                          PARKING



                                                                                                                         PARKING




                                                                                                                                                                           5400




                                                                                                                                                                                                                                                                                                                                              4800
                     7.00




                                                                                                                                                                                                                                                                                                                                            600
                                                                                                                                                                                                                                             LEFT TURN EXIT ONLY            PARKING OVER LANDSCAPE
                                                                                                                                                                           2000




                                                                                                                            LANDSCAPE                                                                                                                                                                                                                                         P.M.T.
                                                                                                                                                                                                                                                                                                                               LANDSCAPE
                                              LEFT TURN
                                             ENTRY ONLY
                                                                                                        UPPER BIORETENTION ZONE                                                                                                                                                                                                                               UPPER BIORETENTION ZONE
                                                                                                        REFER SWMP BY CIVIL ENGINEER                                                                                                                                                     EXISTING FOOTPATH                                                    REFER SWMP BY CIVIL ENGINEER
                                                                                                                                                                                   RETAINING WALL
                                                                                                        FOR EXTENT (EXTENT INDICATED                                                                                                                                                                                                                          FOR EXTENT (EXTENT INDICATED
                                                                                                        BY HATCHING)                                           2M HIGH MECHANICAL VENT RISER                                                                                                                                                                  BY HATCHING)
                                                                                                                                                                                                                                                                                 2M HIGH MECHANICAL VENT RISER




PROPOSED MEDICAL DEVELOPMENT                                                                                                                                                                            MEDICENTRE PROPERTIES PTY LTD                                                                         development approval
                                                                                                                                                                                                                                                                                                              scale: 1:250@A3
                                                                                                                                                                                                                                                                                                              issue:   03
                                                                                                                                                                                                                                                                                                                       05        date: 27.11.2015                 north

GOODCHAP STREET, NOOSAVILLE                                                                                                                                                                             FLOOR PLAN LEVEL 1                                                                                    1534/DA/03
                                                                                                                                                                                                                                                                                                                                                                              The designs, drawings and specification are copyright and always remain the property of Blackburne Jackson Design Pty Ltd.

Section 31

                                                                                      SITE
                                                                                             B OU
                                                                                                 NDA
                                                                                                    RY L
                                                                                                        INE
                                                             A
                                                             06
                                                                                                  METAL DECK ROOF

                                                                                                  LINE OF BUILDING
                                                                                                  BELOW DASHED




                                                                                                                                                            4100
            5.00




                                      2.5° FALL




                                                                          2.5° FALL
                                                                                                                                                                                                                       B
                                                                                                                                                                                                                       05




                                                                                                                              WINDOW SHADE
                                                                                                                              DASHED


                                                                          LINE OF ROOF OVER
                                                                          DASHED
          5.50                                                                                                                                                                                                                                                                  8290
                                                                          WINDOW SHADE
                                                                          DASHED




                                                                                                                                                                            2.5° FALL




                                                                                                                                                                                                                                     2.5° FALL
                                                                                                                             PLANT DECK




                                                                                                                                    2.5° FALL
                   26715




 WINDOW SHADE
 DASHED
                                                  G.F.A.
                                                  724 m2




                                                                                                                                                17300
                                                                                      LIFT
                                                  RL 9.900




                                                                                                                                                                                        2.5° FALL




                                                                                                                                                                                                                                                  2.5° FALL
                           UP FROM                                                           UP FROM                                                    PERGOLA
                            LEVEL 1                                                           LEVEL 1                                                   STRUCTURE

                               UP




                                                                                                                                                                                                                                                 METAL DECK ROOF OVER
                                                                     WINDOW SHADE
                                                                                                                                                                                                                                                 CARPARK
                                                             35970   DASHED




                                                                                                                                                                    13550
                                                                                                                     12400




PROPOSED MEDICAL DEVELOPMENT                                                                      MEDICENTRE PROPERTIES PTY LTD                                                                     development approval
                                                                                                                                                                                                    scale: 1:250@A3
                                                                                                                                                                                                    issue:   03
                                                                                                                                                                                                             04   date: 30.07.2015
                                                                                                                                                                                                                        27.11.2015               north

GOODCHAP STREET, NOOSAVILLE                                                                       FLOOR PLAN LEVEL 2                                                                                1534/DA/04
                                                                                                                                                                                                                                                              The designs, drawings and specification are copyright and always remain the property of Blackburne Jackson Design Pty Ltd.

Section 32

                                                                                 15099 - SBSMP/2
                                                                                          Page 27




                                              Appendix C


                                 CONCEPT DRAINAGE PLANS




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 33

                          P:             (07) 3369 8411
                          F:             (07) 3369 1893
                               [email protected]
                            Morgan Consulting Engineers
                          This drawing is not to be copied,
                          retained or used without the
                          permission of the copyright holder.


1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4

Section 34

                          P:             (07) 3369 8411
                          F:             (07) 3369 1893
                               [email protected]
                            Morgan Consulting Engineers
                          This drawing is not to be copied,
                          retained or used without the
                          permission of the copyright holder.


1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4

Section 35

                          P:             (07) 3369 8411
                          F:             (07) 3369 1893
                               [email protected]
                            Morgan Consulting Engineers
                          This drawing is not to be copied,
                          retained or used without the
                          permission of the copyright holder.


1 GREAT GEORGE STREET
PADDINGTON Q LD 4 0 6 4

Section 36

                                                                                 15099 - SBSMP/2
                                                                                          Page 28




                                              Appendix D


                  XP-RAFTS PRE-DEVELOPMENT HYDROGRAPHS




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 37

                                             LPD [ALL STORMS]
                                                        Total Flow

                           2yr 10min max [0.094]     2yr 15min max [0.114]     2yr 20min max [0.125]

                           2yr 25min max [0.150]     2yr 30min max [0.137]     2yr 45min max [0.113]

                           2yr 60min max [0.139]     2yr 90min max [0.109]    2yr 120min max [0.102]

                          2yr 180min max [0.080]    2yr 360min max [0.057]    2yr 720min max [0.057]

                          2yr 1080min max [0.040]   2yr 1440min max [0.041]   2yr 2160min max [0.028]

                          2yr 2880min max [0.027]   2yr 4320min max [0.019]




                   0.14



                   0.12



                   0.10
Total Flow [cms]




                   0.08



                   0.06



                   0.04



                   0.02



                   0.00
                       15 Tue            22 Tue                1 Thu           8 Thu           15 Thu
                      Sep 2015                               Time


[OCR of page images]
LPD [ALL STORMS]

Total Flow
| |
2yr 10min max [0.094] 2yr 15min max [0.114] 2yr 20min max [0.125]

2yr 25min max [0.150] 2yr 30min = max [0.137] 2yr 45min max [0.113]

2yr 6Omin max [0.139] 2yr 90min max [0.109] 2yr120min max [0.102]

2yr 180min max [0.080] 2yr 360min max [0.057] 2yr 720min max [0.057]

2yr 1080min max [0.040] 2yr1440min max [0.041] 2yr2160min max [0.028]

2yr 2880min max [0.027] 2yr4320min max [0.019]

0.14

0.12

0.10

Total Flow [cms]
oO
oO
©

 

 

0.06
0.04
0.02 |

}

|

nM
0.00 tie!

15 Tue 22 Tue 1 Thu 8 Thu 15 Thu

Sep 2015 Time

 

Section 38

                                             LPD [ALL STORMS]
                                                        Total Flow

                           5yr 10min max [0.128]     5yr 15min max [0.153]     5yr 20min max [0.166]

                           5yr 25min max [0.199]     5yr 30min max [0.187]     5yr 45min max [0.151]

                           5yr 60min max [0.181]     5yr 90min max [0.144]    5yr 120min max [0.137]

                          5yr 180min max [0.109]    5yr 360min max [0.078]    5yr 720min max [0.080]

                          5yr 1080min max [0.057]   5yr 1440min max [0.059]   5yr 2160min max [0.041]

                          5yr 2880min max [0.039]   5yr 4320min max [0.029]

                   0.20


                   0.18


                   0.16


                   0.14
Total Flow [cms]




                   0.12


                   0.10


                   0.08


                   0.06


                   0.04


                   0.02


                   0.00
                       15 Tue            22 Tue                1 Thu           8 Thu           15 Thu
                      Sep 2015                               Time


[OCR of page images]
LPD [ALL STORMS]

Total Flow
| |
5yr 10min max [0.128] 5yr 15min max [0.153] 5yr 20min max [0.166]
P| —
5yr 25min max [0.199] 5yr 30min max [0.187] 5yr 45min max [0.151]

5yr 6Omin max [0.181] 5yr 90min max [0.144] 5yr120min max [0.137]

5yr 180min max [0.109] 5yr 360min max [0.078] 5yr 720min max [0.080]

5yr 1080min max [0.057] 5yr1440min max [0.059] 5yr2160min max [0.041]

5yr 2880min max [0.039] 5yr 4320min max [0.029]

0.20

0.18

0.16

0.14

o
BR
No

0.10

Total Flow [cms]

0.08

0.06

0.04

 

0.02 |
|
0.00- let

15 Tue 22 Tue 1 Thu 8 Thu 15 Thu
Sep 2015 Time

 

Section 39

                                              LPD [ALL STORMS]
                                                         Total Flow

                           10yr 10min max [0.154]     10yr 15min max [0.183]     10yr 20min max [0.185]

                           10yr 25min max [0.222]     10yr 30min max [0.209]     10yr 45min max [0.169]

                           10yr 60min max [0.202]     10yr 90min max [0.168]    10yr 120min max [0.160]

                          10yr 180min max [0.126]    10yr 360min max [0.090]    10yr 720min max [0.095]

                          10yr 1080min max [0.067]   10yr 1440min max [0.070]   10yr 2160min max [0.049]

                          10yr 2880min max [0.047]   10yr 4320min max [0.035]


                   0.22


                   0.20


                   0.18


                   0.16


                   0.14
Total Flow [cms]




                   0.12


                   0.10


                   0.08


                   0.06


                   0.04


                   0.02


                   0.00
                       15 Tue            22 Tue                 1 Thu            8 Thu            15 Thu
                      Sep 2015                                Time


[OCR of page images]
LPD [ALL STORMS]

10yr 10min max [0.154]
Le

10yr 25min max [0.222]

10yr 60min max [0.202]
10yr 180min max [0.126]
10yr 1080min max [0.067]

10yr 2880min max [0.047]

0.22

0.20

0.18

0.16

Total Flow [cms]
o o o
be be BR
oO Nh a

©
O°
oo

0.06

0.04

 

0.02 |
|

NH
0.00 He!
15 Tue

Sep 2015

22 Tue

Total Flow

10yr 15min max [0.183] 10yr 20min max [0.185]

10yr 45min max [0.169]

10yr 120min max [0.160]

10yr 30min max [0.209]

10yr 90min max [0.168]

10yr 360min max [0.090] 10yr 720min max [0.095]

10yr 1440min max [0.070] 10yr2160min max [0.049]

10yr 4320min max [0.035]

1 Thu
Time

8 Thu 15 Thu

 

Section 40

                                              LPD [ALL STORMS]
                                                         Total Flow

                           20yr 10min max [0.181]     20yr 15min max [0.215]     20yr 20min max [0.214]

                           20yr 25min max [0.255]     20yr 30min max [0.240]     20yr 45min max [0.195]

                           20yr 60min max [0.230]     20yr 90min max [0.192]    20yr 120min max [0.185]

                          20yr 180min max [0.150]    20yr 360min max [0.107]    20yr 720min max [0.114]

                          20yr 1080min max [0.081]   20yr 1440min max [0.084]   20yr 2160min max [0.059]

                          20yr 2880min max [0.057]   20yr 4320min max [0.042]


                   0.25




                   0.20
Total Flow [cms]




                   0.15




                   0.10




                   0.05




                   0.00
                       15 Tue            22 Tue                 1 Thu            8 Thu            15 Thu
                      Sep 2015                                Time


[OCR of page images]
LPD [ALL STORMS]

20yr 10min max [0.181]
Le

20yr 25min max [0.255]
20yr 60min max [0.230]
20yr 180min max [0.150]
20yr 1080min max [0.081]

20yr 2880min max [0.057]

0.25

0.20

o
BR
o1

Total Flow [cms]

0.10

0.05

 

O. 00 h

15 Tue
Sep 2015

22 Tue

Total Flow
{|

20yr 15min max [0.215] 20yr 20min max [0.214]

20yr 45min max [0.195]

20yr 120min max [0.185]

20yr 30min max [0.240]

20yr 90min max [0.192]

20yr 360min max [0.107] 20yr 720min max [0.114]

20yr 1440min max [0.084] 20yr2160min max [0.059]

20yr 4320min max [0.042]

1 Thu
Time

8 Thu 15 Thu

 

Section 41

                                              LPD [ALL STORMS]
                                                         Total Flow

                           50yr 10min max [0.222]     50yr 15min max [0.244]     50yr 20min max [0.245]

                           50yr 25min max [0.271]     50yr 30min max [0.259]     50yr 45min max [0.221]

                           50yr 60min max [0.251]     50yr 90min max [0.202]    50yr 120min max [0.194]

                          50yr 180min max [0.158]    50yr 360min max [0.115]    50yr 720min max [0.123]

                          50yr 1080min max [0.089]   50yr 1440min max [0.092]   50yr 2160min max [0.065]

                          50yr 2880min max [0.063]   50yr 4320min max [0.047]




                   0.25




                   0.20
Total Flow [cms]




                   0.15




                   0.10




                   0.05




                   0.00
                       15 Tue            22 Tue                 1 Thu            8 Thu            15 Thu
                      Sep 2015                                Time


[OCR of page images]
LPD [ALL STORMS]

50yr 10min max [0.222]
Le

50yr 25min max [0.271]
50yr 60min max [0.251]
50yr 180min max [0.158]
50yr 1080min max [0.089]

50yr 2880min max [0.063]

0.25

0.20

Total Flow [cms]
oO
ip
ol

0.10

0.05

 

1

15 Tue
Sep 2015

0.00
22 Tue

Total Flow

50yr 15min max [0.244] 50yr 20min max [0.245]

50yr 45min max [0.221]

50yr 120min max [0.194]

50yr 30min max [0.259]

50yr 90min max [0.202]

50yr 360min max [0.115] 50yr 720min max [0.123]

50yr 1440min max [0.092] 50yr2160min max [0.065]

50yr 4320min max [0.047]

1 Thu
Time

8 Thu 15 Thu

 

Section 42

                                               LPD [ALL STORMS]
                                                           Total Flow

                           100yr 10min max [0.246]     100yr 15min max [0.277]     100yr 20min max [0.272]

                           100yr 25min max [0.301]     100yr 30min max [0.288]     100yr 45min max [0.246]

                           100yr 60min max [0.278]     100yr 90min max [0.224]    100yr 120min max [0.216]

                          100yr 180min max [0.178]    100yr 360min max [0.131]    100yr 720min max [0.141]

                          100yr 1080min max [0.102]   100yr 1440min max [0.106]   100yr 2160min max [0.076]

                          100yr 2880min max [0.073]   100yr 4320min max [0.055]


                   0.30




                   0.25




                   0.20
Total Flow [cms]




                   0.15




                   0.10




                   0.05




                   0.00
                       15 Tue             22 Tue                 1 Thu             8 Thu            15 Thu
                      Sep 2015                                 Time


[OCR of page images]
LPD [ALL STORMS]

100yr 10min max [0.246]
Le

100yr 25min max [0.301]

100yr 6Omin max [0.278]

 

100yr 180min max [0.178]
100yr 1080min max [0.102]

100yr 2880min max [0.073]

0.30

0.25

0.20

0.15

Total Flow [cms]

0.10

 

0.05

|

Wit
0.00 i) {
15 Tue

Sep 2015

 

22 Tue

Total Flow

Le
100yr 15min max [0.277]

100yr 30min max [0.288]

100yr 90min max [0.224]

100yr 360min max [0.131]

100yr 1440min max [0.106]

100yr 4320min max [0.055]

1 Thu
Time

100yr 20min = max [0.272]

100yr 45min max [0.246]

 

100yr 120min max [0.216]
100yr 720min max [0.141]

100yr 2160min max [0.076]

8 Thu 15 Thu

 

Section 43

                                                                                 15099 - SBSMP/2
                                                                                          Page 29




                                               Appendix E


        XP-RAFTS POST-DEVELOPMENT MITIGATED HYDROGRAPHS




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 44

                                             LPD [ALL STORMS]
                                                        Total Flow

                           2yr 10min max [0.100]     2yr 15min max [0.126]     2yr 20min max [0.121]

                           2yr 25min max [0.133]     2yr 30min max [0.125]     2yr 45min max [0.109]

                           2yr 60min max [0.121]     2yr 90min max [0.102]    2yr 120min max [0.097]

                          2yr 180min max [0.076]    2yr 360min max [0.056]    2yr 720min max [0.056]

                          2yr 1080min max [0.041]   2yr 1440min max [0.043]   2yr 2160min max [0.030]

                          2yr 2880min max [0.028]   2yr 4320min max [0.021]


                   0.13

                   0.12

                   0.11

                   0.10

                   0.09
Total Flow [cms]




                   0.08

                   0.07

                   0.06

                   0.05

                   0.04

                   0.03

                   0.02

                   0.01

                   0.00
                       15 Tue            22 Tue                1 Thu           8 Thu           15 Thu
                      Sep 2015                               Time


[OCR of page images]
0.13

0.12

0.11

0.10

0.09

©
O°
oo

Total Flow [cms]
oO oO
oO oO
a ~N

©
oO
a

0.04

0.03

0.02

0.01

0.00

LPD [ALL STORMS]

Total Flow
| |
2yr 10min max [0.100] 2yr 15min max [0.126] 2yr 20min max [0.121]
a —
2yr 25min max [0.133] 2yr 30min max [0.125] 2yr 45min max [0.109]

2yr 6Omin max [0.121] 2yr 90min max [0.102] 2yr 120min max [0.097]

2yr 180min max [0.076] 2yr 360min max [0.056] 2yr 720min max [0.056]

2yr 1080min max [0.041] 2yr1440min max [0.043]  2yr2160min max [0.030]

2yr 2880min max [0.028]  2yr 4320min max [0.021]

 

|

I
[ta l

15 Tue 22 Tue 1 Thu 8 Thu 15 Thu

 

Sep 2015 Time

 

Section 45

                                             LPD [ALL STORMS]
                                                        Total Flow

                           5yr 10min max [0.120]     5yr 15min max [0.152]     5yr 20min max [0.147]

                           5yr 25min max [0.182]     5yr 30min max [0.170]     5yr 45min max [0.134]

                           5yr 60min max [0.167]     5yr 90min max [0.138]    5yr 120min max [0.122]

                          5yr 180min max [0.097]    5yr 360min max [0.075]    5yr 720min max [0.076]

                          5yr 1080min max [0.058]   5yr 1440min max [0.059]   5yr 2160min max [0.042]

                          5yr 2880min max [0.040]   5yr 4320min max [0.030]


                   0.18



                   0.16



                   0.14



                   0.12
Total Flow [cms]




                   0.10



                   0.08



                   0.06



                   0.04



                   0.02



                   0.00
                       15 Tue            22 Tue                1 Thu           8 Thu           15 Thu
                      Sep 2015                               Time


[OCR of page images]
LPD [ALL STORMS]

Total Flow
| |
5yr 10min max [0.120] 5yr 15min max [0.152] 5yr 20min max [0.147]
P| —
5yr 25min max [0.182] 5yr 30min = max [0.170] 5yr 45min max [0.134]

5yr 6Omin max [0.167] 5yr 90min max [0.138] 5yr120min max [0.122]

5yr 180min max [0.097] 5yr 360min max [0.075] 5yr 720min max [0.076]

5yr 1080min max [0.058] 5yr1440min max [0.059] 5yr2160min max [0.042]

5yr 2880min max [0.040] 5yr 4320min max [0.030]

0.18

0.16

0.14

0.12

Total Flow [cms]
oO
jb
oO

©
O°
oo

0.06

0.04

 

0.02 | |
|

0.00 lt
15 Tue 22 Tue 1 Thu 8 Thu 15 Thu
Sep 2015 Time

 

 

Section 46

                                              LPD [ALL STORMS]
                                                         Total Flow

                           10yr 10min max [0.139]     10yr 15min max [0.181]     10yr 20min max [0.164]

                           10yr 25min max [0.204]     10yr 30min max [0.191]     10yr 45min max [0.151]

                           10yr 60min max [0.188]     10yr 90min max [0.161]    10yr 120min max [0.151]

                          10yr 180min max [0.124]    10yr 360min max [0.086]    10yr 720min max [0.088]

                          10yr 1080min max [0.068]   10yr 1440min max [0.070]   10yr 2160min max [0.050]

                          10yr 2880min max [0.048]   10yr 4320min max [0.036]


                   0.20


                   0.18


                   0.16


                   0.14
Total Flow [cms]




                   0.12


                   0.10


                   0.08


                   0.06


                   0.04


                   0.02


                   0.00
                       15 Tue            22 Tue                 1 Thu            8 Thu            15 Thu
                      Sep 2015                                Time


[OCR of page images]
LPD [ALL STORMS]

10yr 10min max [0.139]
Le

10yr 25min max [0.204]

10yr 60min max [0.188]
10yr 180min max [0.124]
10yr 1080min max [0.068]

10yr 2880min max [0.048]

0.20

0.18

0.16

o o
BR BR
Nh &

Total Flow [cms]
oO
jb
oO

0.08

0.06

 

0.04

0.02 | |
Uh
0.00 le

15 Tue
Sep 2015

 

22 Tue

Total Flow
{|

10yr 15min max [0.181] 10yr 20min max [0.164]

10yr 45min max [0.151]

10yr 120min max [0.151]

10yr 30min max [0.191]

10yr 90min max [0.161]

10yr 360min max [0.086] 10yr 720min max [0.088]

10yr 1440min max [0.070] 10yr2160min max [0.050]

10yr 4320min max [0.036]

1 Thu
Time

8 Thu 15 Thu

 

Section 47

                                              LPD [ALL STORMS]
                                                         Total Flow

                           20yr 10min max [0.167]     20yr 15min max [0.210]     20yr 20min max [0.195]

                           20yr 25min max [0.231]     20yr 30min max [0.218]     20yr 45min max [0.179]

                           20yr 60min max [0.213]     20yr 90min max [0.186]    20yr 120min max [0.178]

                          20yr 180min max [0.145]    20yr 360min max [0.108]    20yr 720min max [0.114]

                          20yr 1080min max [0.080]   20yr 1440min max [0.084]   20yr 2160min max [0.061]

                          20yr 2880min max [0.059]   20yr 4320min max [0.044]
                   0.24


                   0.22


                   0.20


                   0.18


                   0.16
Total Flow [cms]




                   0.14


                   0.12


                   0.10


                   0.08


                   0.06


                   0.04


                   0.02


                   0.00
                       15 Tue            22 Tue                 1 Thu            8 Thu            15 Thu
                      Sep 2015                                Time


[OCR of page images]
LPD [ALL STORMS]

20yr 10min max [0.167]
Le

20yr 25min max [0.231]

20yr 60min max [0.213]
20yr 180min max [0.145]
20yr 1080min max [0.080]

20yr 2880min max [0.059]
0.24

0.22

0.20

0.18

Total Flow [cms]
o o o
be BR be
Nh oO

oO
Ee
oO

 

 

Total Flow
{|

20yr 15min max [0.210] 20yr 20min max [0.195]

20yr 45min max [0.179]

20yr 120min max [0.178]

20yr 30min max [0.218]

20yr 90min max [0.186]

20yr 360min max [0.108] 20yr 720min max [0.114]

20yr 1440min max [0.084] 20yr2160min max [0.061]

20yr 4320min max [0.044]

 

0.08
0.06
0.04
0.02 | |

jl
0.00 li

15 Tue 22 Tue 1 Thu 8 Thu 15 Thu
Sep 2015 Time

 

Section 48

                                              LPD [ALL STORMS]
                                                         Total Flow

                           50yr 10min max [0.202]     50yr 15min max [0.233]     50yr 20min max [0.218]

                           50yr 25min max [0.243]     50yr 30min max [0.233]     50yr 45min max [0.201]

                           50yr 60min max [0.231]     50yr 90min max [0.194]    50yr 120min max [0.187]

                          50yr 180min max [0.154]    50yr 360min max [0.116]    50yr 720min max [0.123]

                          50yr 1080min max [0.090]   50yr 1440min max [0.094]   50yr 2160min max [0.067]

                          50yr 2880min max [0.064]   50yr 4320min max [0.049]
                   0.25




                   0.20




                   0.15
Total Flow [cms]




                   0.10




                   0.05




                   0.00
                       15 Tue            22 Tue                 1 Thu            8 Thu            15 Thu
                      Sep 2015                                Time


[OCR of page images]
LPD [ALL STORMS]

50yr 10min max [0.202]
Le

50yr 25min max [0.243]
50yr 60min max [0.231]
50yr 180min max [0.154]
50yr 1080min max [0.090]

50yr 2880min max [0.064]
0.25

0.20

o
BR
o1

Total Flow [cms]

0.10

 

0.05

ity

 

0.00

Total Flow
{|

50yr 15min max [0.233] 50yr 20min max [0.218]

50yr 45min max [0.201]

50yr 120min max [0.187]

50yr 30min max [0.233]

50yr 90min max [0.194]

50yr 360min max [0.116] 50yr 720min max [0.123]

50yr 1440min max [0.094] 50yr 2160min max [0.067]

50yr 4320min max [0.049]

 

15 Tue
Sep 2015

22 Tue

1 Thu
Time

8 Thu 15 Thu

 

Section 49

                                               LPD [ALL STORMS]
                                                           Total Flow

                           100yr 10min max [0.221]     100yr 15min max [0.265]     100yr 20min max [0.253]

                           100yr 25min max [0.274]     100yr 30min max [0.255]     100yr 45min max [0.223]

                           100yr 60min max [0.254]     100yr 90min max [0.213]    100yr 120min max [0.205]

                          100yr 180min max [0.172]    100yr 360min max [0.132]    100yr 720min max [0.141]

                          100yr 1080min max [0.104]   100yr 1440min max [0.108]   100yr 2160min max [0.077]

                          100yr 2880min max [0.074]   100yr 4320min max [0.057]




                   0.25




                   0.20
Total Flow [cms]




                   0.15




                   0.10




                   0.05




                   0.00
                       15 Tue             22 Tue                 1 Thu             8 Thu            15 Thu
                      Sep 2015                                 Time


[OCR of page images]
LPD [ALL STORMS]

100yr 10min = max [0.221]
Le

100yr 25min max [0.274]

 

100yr 6Omin = max [0.254]
100yr 180min max [0.172]
100yr 1080min max [0.104]

100yr 2880min max [0.074]

Total Flow

100yr 15min max [0.265] 100yr 20min = max [0.253]

100yr 30min = max [0.255] 100yr 45min = max [0.223]

100yr 120min max [0.205]

 

100yr 90min = max [0.213]

100yr 360min max [0.132] 100yr 720min max [0.141]

100yr 1440min max [0.108]  100yr 2160min max [0.077]

100yr 4320min max [0.057]

 

 

0.25
0.20
nD
&
2,
= 0.15
Oo
im
o
o
a
0.10 |
0.05
0.00 Pa
15 Tue 22 Tue 1 Thu 8 Thu 15 Thu
Sep 2015 Time

 

Section 50

                                                                                 15099 - SBSMP/2
                                                                                          Page 30




                                               Appendix F


                           RATIONAL METHOD CALCULATIONS




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 51

                                                  Rational Method Peak Flow Calculations
Job No:            15099                                                                                                                                        MORGAN CONSULTING
Job Type:          Proposed Medical Development                                                                                                                  ENGINEERS PTY LTD
Address:           Cnr Val Crescent and Goodchap Street, Noosaville                                                                                          1 GREAT GEORGE STREET
Council:           Noosa Council                                                                                                                               PADDINGTON QLD 4064


IFD Data:          Noosa                                                           Minor Storm:   Q2                                                                        Designed:   RP
1
I10                72mm/hr                                                         Major Storm:Q100                                                                         Checked:    HM

Pre-Development                                                                                        Post-Development

Time of Concentration

Standard Inlet Time                                                                                    Standard Inlet Time
      Standard Inlet Time                     0    mins     QUDM 2007 4.06                                    Standard Inlet Time                 5    mins   QUDM 2007 4.06

Sheet Flow (Friends Equation)                               QUDM 2007 - Table 4.06.3                   Sheet Flow (Friends Equation)                          QUDM 2007 - Table 4.06.3
     Sheet flow length (L)                   45     m                                                        Sheet flow length (L)                      m
           roughness (n)                   0.03             short grass                                             roughness (n)                             short grass
              Fall of NSL                  1.96     m                                                                  Fall of NSL                      m
     Slope of Surface (S)                   4.4     %                                                         Slope of Surface (S)                      %
                      total                 8.5    mins                                                                        total           0.0     mins
Concentrated Overland Flow                                                                             Pipe Flow
           Flow distance                     25     m                                                                Flow distance                      m
                 velocity                     1    m/s                                                              Fall of channel                     m
                    mins                    0.4    mins     QUDM 2007 - Figure 4.09                                  Flow Velocity                     m/s
   Surface type multiplier                  1.0                                                                                total      0.000        mins
                     total                  0.4    mins

Total tc                                    8.9    mins                                                                 Total tc               5.0     mins



Runoff Volume Calculations

      Name          Area (ha)         tc             fi      C10                                           Name          Area (ha)        tc             fi    C10
                     0.4325                        0.32      0.74                                                         0.4325                       0.83    0.86

           Total      0.433          8.9                     0.74                                               Total      0.433         5.0                   0.86

                   Frequency                                                                                            Frequency
       ARI                            Cy            Iy                      Qy                              ARI                           Cy            Iy                Qy
                     Factor                                 A (Ha)                                                        Factor                             A (Ha)
     (years)                       (Fy*C10)       (mm/h)                  (m3/s)                          (years)                      (Fy*C10)       (mm/h)            (m3/s)
                      (Fy)                                                                                                 (Fy)
      3 mth                                                               0.037                            3 mth                                                        0.053
        1             0.800         0.590          104       0.433        0.074                              1             0.800        0.687          130     0.433    0.107
        2             0.850         0.627          132       0.433        0.100                              2             0.850        0.730          164     0.433    0.144
        5             0.950         0.701          164       0.433        0.138                              5             0.950        0.816          202     0.433    0.198
        10            1.000         0.738          181       0.433        0.161                              10            1.000        0.859          223     0.433    0.230
        20            1.050         0.775          206       0.433        0.192                              20            1.050        0.902          253     0.433    0.274
        50            1.150         0.849          238       0.433        0.243                              50            1.150        0.988          292     0.433    0.346
       100            1.200         0.886          263       0.433        0.279                             100            1.200        1.000          321     0.433    0.386



Detention Tank Orifice Plate Sizing Required:                                                          Pipe size required at outlet to maintain existing minor flow:


                      Item                        Orifice                                                                Item

    Pre-development minor flow Q2 (m3/s)           0.100                                                                             dia (mm)          375
                                        Cd                                                                                             A (m2)          0.11
                                 g (m/s2)          9.81                                                                                    (n)        0.013
                                     h (m)                                                                                                  P          1.18
                                   A (m2)         #DIV/0!                                                                          Slope (%)           2.2
                   Orifice Plate dia (mm)         #DIV/0!                                                                      Slope (1 in X)          45.5
                                                                                                                      Pipe Capacity, Q (m3/s)         0.260
                                                                                                          Total Minor Storm Peak Flow (m3/s)          0.100




                                                                                        Page 1 of 1                                                                           21/09/2015

Section 52

                                                                                 15099 - SBSMP/2
                                                                                          Page 31




                                              Appendix G


                        NOOSAVILLE FLOOD OVERLAY MAPPING




Site Based Stormwater Management Plan
Proposed Medical Development at Cnr Val Crescent & Goodchap Street, Noosaville

Section 53

                                                                                                                                                                                                                                       MO
                                                                                                                                            N ST
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