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D21030-1_NoosaSprings
Attached to the e-mail Part Response to Information Request (Odour Modelling) - MCU21/0110 - Email 1 of 2.
MEMORANDUM
To Phil Starkey, [email protected]
Natalie Shaw,
From
[email protected]
Client name GH Australia
Quote No. D21030-1
Subject Noosa Springs Boutique Hotel
Date 23 August 2021
Dear Phil,
In December 2020, Katestone completed an air quality assessment for the development application for the Noosa Springs
Boutique Hotel. In July 2021, Noosa Council issued an Information Request regarding the development application.
Items 9 to 16 of the Information Request relate to the air quality assessment conducted by Katestone. Items 9 to 16 are
reproduced in Attachment A with Katestone’s responses.
If you have any questions, please do not hesitate to contact the undersigned.
Kind regards,
Natalie Shaw – Principal Consultant and Team Leader Approvals
Ground Floor, 16 Marie St, Milton, QLD. www.katestone.global
PO Box 2217, Milton, QLD. 4064, Australia Ph +61 7 3369 3699
ABN 92 097 270 276
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ATTACHMENT A
Table A1 Noosa Council Information Request
Issue Information required Katestone Recommended Response
A preliminary review of the 9. Please supply the electronic Katestone has provided the requested files in two zip files in a separate email dated 23 August
Katestone Environmental Odour modelling files as follows: 2021.
Assessment report dated a. TAPM input and output files
December 2020 has been i. *.def D21030-2_NoosaSprings_Files to send_1.zip
undertaken. The following ii. *.inp - Contains CALMET, CALPUFF, CALSUM and RESULTS
additional information is requested iii. *.lis D21030-3_NoosaSprings_Files to send_2.zip
in respect of the odour assessment
iv. *.obs - Contains TAPM.
reporting provided.
v. *.top (default and refined for
1km and 300m)
b. CALMET input and output files
i. *.inp
ii. *.lst
iii. GEO.dat
c. PRTMET output file
i. *.dat (timeseries of predicted
meteorology for subject site )
d. CALPUFF input and output files
i. *.inp
ii. *.lst
iii. *.src
e. CALPOST Output files
i. *.inp (any CALSUM files)
ii. *.lst (any CALSUM files)
iii. *.dat (timeseries of modelled
discrete receptors)
iv. *.grd (gridded contour file)
Katestone Environmental Pty Ltd 23 August 2021
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Issue Information required Katestone Recommended Response
The analysis of the site-predicted 10. Supply of the requested PRTMET Katestone has provided the requested file (NoosaSprings_Prtmet.DAT) in a separate email
meteorology included in Figure 4 to file is requested to assist in review of this dated 23 August 2021. The windrose for the site indicates that six percent of winds are less
Figure 7 of the Katestone report matter. Provide justification as to than 1 m/s at the site.
does not appear to appropriately whether the assessment has suitably
summarise the frequency of calm considered calm/ low wind speed
wind speeds which are an import conditions.
consideration of potential odour
impacts.
A review of the predicted odour 11. Supply of timeseries of predicted Katestone has provided an excel spreadsheet (AMG_NewPlan_Results.xlsx) containing a
contours identifies the 2.5 odour odour concentrations for each receptor timeseries of the predicted odour concentrations at the hotel buildings and outdoor recreation
unit contour is immediately is requested for review of potential odour areas in a separate email dated 23 August 2021.
adjacent the proposed impacts the accommodation building
accommodation building with little and at the outdoor recreation areas.
buffer. The tabulated results in
Table 5 identify that 2.5 odour units
is predicted at the accommodation
building.
Further clarification is required with 12. Please describe how the results for Predicted odour concentrations for the hours when recreational areas are allowed to be
respect to odour predictions the reduced hours for the outdoor occupied were generated as follows:
provided for outdoor recreation recreation areas was generated, i.e 1. Removed 1-hour concentrations for hours when recreational areas were not occupied. (e.g.
areas. removal of predicted concentrations for the tennis court hours 9pm to 6am, for the swimming pool hours 8pm to 6am)
from unoccupied hours and 2. Calculate 99.5th percentile on the remaining hours.
regeneration of 99.5th percentile or
maximum?
13. For Figure 12 and Figure 13, clarify The location (508.697kmE 7078.109kmS) is representative of the outdoor recreational areas.
the location of the receptor(s) used to It is located between the pool and tennis courts. The figures included all hours of the year
generate these figures, eg (8760 hours). (The timeseries data (Odour_met.csv) is provided in a separate email dated 23
accommodation or outdoor recreation August 2021.)
areas.
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Issue Information required Katestone Recommended Response
14. Provide further justification for not Section 6 of the air quality assessment describes the reasoning. That is, odour emissions
including odour emissions from the inlet from the inlet works were not included as odours were not detected a short distance from the
works in the assessment. source. This observation is consistent with the fact that the inlet works is enclosed to facilitate
capture of odours and treatment via a biofilter.
Odour emissions from the biofilter were measured and included in the dispersion modelling
study.
The odour emission rates adopted 15. Describe the dispersion parameters Characterisation of the sludge loadout sources is provided in the table below.
for the assessment identify that and representation of the sludge Sludge loadout was assumed to occur at 5am in the morning based on operational advice
sludge has a high emission emission source in the modelling to from the Noosa Waste Water Treatment Plant.
potential but was not sampled at validate the predictions undertaken for Source Type Effective Initial horizontal spread Initial vertical spread
the plant. this source. height
m m m
Transfer from conveyor to hopper 4 2 1
Hopper 4 8 1
Drying belt 4 1
16. Provide justification as to why the Odour sampling was undertaken on 13 December 2017. Standard operations were occurring
odour sampling undertaken for the at the Noosa Waste Water Treatment Plant at the time of sampling. The Noosa WWTP has a
purpose of the reporting is relevant to biofilter which minimises emissions and makes them more consistent. The only activity that
odour emissions at all times. Is the odour was not occurring was the sludge loadout due to the time of the day and, therefore, emissions
emission sampling representative of for this source were obtained from the literature.
worst case emissions? Emissions from the sampling have been compared to those reported in the Sydney Water
Database for WWTPs. A summary is provided below. The emissions from Noosa WWTP are
of the same magnitude or greater than the literature.
Sydney Water Database
Noosa WWTP
Source Average Maximum
(ou/m2/s)
(ou/m2/s) (ou/m2/s)
16.8 (anaerobic)
Bioreactor 0.77 4.7 2.6 (anoxic)
1.3 (aerobic)
Digester 0.20 1.0 1.2
Clarifier 0.12 1.1 5.4
Sludge
17 22 17
loadout
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