air quality (mould) investigation · 2019. 9. 19. ·...

NSW DEPARTMENT OF EDUCATION

PASSFIELD PARK SCHOOL

AIR QUALITY (MOULD) INVESTIGATION

OCTOBER 2017

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5563_MOULD_280917_IAQInvestigation_V1_Final.docx October

2017

Passfield Park School

Air Quality (Mould) Investigation

NSW Department of Education

WSP

Level 27, 680 George Street

Sydney NSW 2000

GPO Box 5394

Sydney NSW 2001

Tel: +61 2 9272 5100

Fax: +61 2 9272 5101

wsp.com

REV DATE DETAILS

A 05/10/2017 First Issue -

NAME DATE SIGNATURE

Prepared by: Srijeeta Ratnayake 03/10/2017

Reviewed by: Haysam Elhassan 04/10/2017

Approved by: Morne De Beer 05/10/2017

EXECUTIVE SUMMARY .................................................................. II

1 INTRODUCTION ................................................................... 1

2 LIMITATIONS ........................................................................ 2

3 EVALUATION CRITERIA .................................................... 3

3.1 overview ..................................................................................... 3

3.2 indoor air quality guidelines .................................................... 3

3.3 carbon dioxide ........................................................................... 3

3.4 relative humidity ........................................................................ 4

3.5 building material moisture levels ............................................ 4

3.6 airborne microbial concentration levels ................................. 4

3.7 microbial surface contamination levels .................................. 5

3.8 summary assessment criteria .................................................. 5

4 METHODOLOGY .................................................................. 6

4.1 overview (summary) .................................................................. 6

5 RESULTS ............................................................................... 7

5.1 observations .............................................................................. 7

5.2 indoor air quality parameters ................................................... 7

5.3 airborne microbial organism concentration levels ................ 9

5.4 microbial surface contamination levels ................................ 15

6 DISCUSSION ....................................................................... 18

6.1 indoor air quality ..................................................................... 18

6.2 AIRBORNE MICROBIAL ORGANISM

CONCENTRATION LEVELS .................................................... 18

6.3 microbial surface contamination levels ................................ 18

7 RECOMMENDATIONS ...................................................... 19

BIBLIOGRAPHY.............................................................................. 21

TABLE OF CONTENTS

Project No 217251G Passfield Park School Air Quality (Mould) Investigation NSW Department of Education

WSP October 2017

Page ii

EXECUTIVE SUMMARY

WSP was engaged by NSW Department of Education (DOE) to undertake testing for potential microbial/mould

contamination within Passfield Park School located at 53 Guernsey Ave, Minto NSW 2566.

In accordance with the agreed scope of works, the purpose of our assessment was to undertake air quality monitoring at

locations where students and staff frequent. Our scope of work included the following:

Visual inspection of offices/rooms for evidence of mould growth.

Sampling and culturing of airborne bacteria, yeast and fungi using “NIOSH Method 0800 - Bioaerosol

sampling (Indoor Air)”.

Surface swabbing of targeted areas to identify microbial growth.

Testing air quality and thermal comfort parameters relevant to mould infestation, including the following:

Carbon dioxide;

Relative humidity; and

Temperature.

This report documents the findings of the assessment including sampling methodologies, site observations, evaluation

criteria, findings, discussion and recommendations.

Following the sampling, WSP recommends the following:

— Further cleaning within CR0009, BR0004, BR0007; BR0010; BR0031; BR1001; CR0004; BR0022 and BR0018 is

recommended. Air scrubbers should be used in these locations;

— Consideration should be given to increasing the frequency of cleaning at the school on a routine basis;

Refer to Appendix F for remediation guidelines and detailed steps.


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1 INTRODUCTION WSP was engaged by NSW Department of Education (DOE) to undertake testing for potential microbial/mould

contamination within Passfield Park School located at 53 Guernsey Ave, Minto NSW 2566.

In accordance with the agreed scope of works, the purpose of our assessment was to undertake air quality monitoring at

locations where students and staff frequent. Our scope of work included the following:

Visual inspection of offices/rooms for evidence of mould growth.

Sampling and culturing of airborne bacteria, yeast and fungi using “NIOSH Method 0800 - Bioaerosol

sampling (Indoor Air)”.

Surface swabbing of targeted areas to identify microbial growth.

Testing air quality and thermal comfort parameters relevant to mould infestation, including the following:

Carbon dioxide;

Relative humidity; and

Temperature.

This report documents the findings of the assessment including sampling methodologies, site observations,

evaluation criteria, findings, discussion and recommendations.


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2 LIMITATIONS This report has been prepared for the benefit of the client and no other party. WSP assumes no responsibility and will not

be liable to any other person or organisation for or in relation to any matter dealt with or conclusions expressed in the

report, or for any loss or damage suffered by any other person or organisation arising from matters dealt with or

conclusions expressed in the report (including without limitation matters arising from any negligent act or omission of

WSP or for any loss or damage suffered by any other party relying upon the matters dealt with or conclusions expressed

in the report). Other parties should not rely upon the report or the accuracy or completeness of any conclusions and

should make their own enquiries and obtain independent advice in relation to such matters.

In accordance with the scope of services, WSP has relied upon the data and has conducted field monitoring and/or testing

in the preparation of the report. The nature and extent of monitoring and/or testing conducted is described in the report.

On all sites, varying degrees of non-uniformity of conditions are encountered. Hence no monitoring, common testing or

sampling technique can eliminate the possibility that monitoring or testing results/samples are not totally representative

of actual situations. The conclusions are based upon the data and the field monitoring and/or testing and are therefore

merely indicative of the conditions of the site at the time of preparing the report.

It should also be recognised that site conditions, including the extent and concentration of contaminants, can change with

time.

Within the limitations imposed by the scope of services, the monitoring, testing, sampling and preparation of this report

have been undertaken and performed in a professional manner, in accordance with generally accepted practices and using

a degree of skill and care ordinarily exercised by reputable Occupational Hygiene consultants under similar

circumstances. No other warranty, expressed or implied, is made.


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3 EVALUATION CRITERIA

3.1 OVERVIEW

Air quality and thermal comfort of occupants within buildings is dependent on an array of multifaceted parameters which

impact on one another, including (but not limited to) airborne contaminants (e.g. chemical vapours, mould spores),

thermal comfort parameters (relative humidity, air movement and air temperature) and fresh air changes (to remove

odours, excessive moisture and carbon dioxide levels).

3.2 INDOOR AIR QUALITY GUIDELINES

It should be noted that air quality guidelines are not generally enforceable under the relevant OH&S legislation as these

pertain to the comfort of occupants and are not usually a statutory exposure standard. Air quality guidelines are designed

to ensure that all members of the public (including sensitive persons) are protected and not just healthy workers, ensuring

general common law obligations and general OH&S obligations are met. Failing to ensure air quality is acceptable can

reduce the comfort of occupants, having an effect on worker productivity and morale.

Air quality guidelines in this report are sourced from a variety of government and non-government organisations with

recognised expertise and good industry standing. Indoor air quality publications used in this report include (but are not

limited to) the following references:

AS 1668.2-2012, ‘the use of ventilation and air conditioning in buildings –Part 2: Mechanical ventilation in

buildings’.

ASHRAE Standard 55, 2013, ‘Thermal Environmental Conditions for Human Occupancy’.

ASHRAE Standard 62.1, 2016, ‘Ventilation for Acceptable Indoor Air Quality’.

AHRAE Standard 62.2, 2016 “Ventilation and Acceptable Indoor Air Quality in Low-rise Residential

Buildings”.

ISO 7730-2005, Ergonomics of the thermal environment – Analytical determination and interpretation of

thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria.

Environmental Protection (Air) Policy 2008, (Qld Government).

WHO-2005, ‘Air Quality Guidelines for particulate matter, ozone, nitrogen dioxide and sulphur dioxide’.

3.3 CARBON DIOXIDE

Carbon dioxide (CO2) levels are measured as a proxy for the assessment of fresh air change rates within an area.

Ineffective ventilation may lead to elevated levels of carbon dioxide resulting in a feeling of stuffiness within the room.

CO2 is usually present in the external ambient environment at levels of approximately 400 ppm. In the built environment,

CO2 is a product of biological metabolic processes. Generally, when CO2 levels are elevated, it is indicative of too many

occupants for the room size; or an inadequate number of fresh air changes per person or activity. Where fresh air changes

are inadequate it is frequent to have odour complaints from building occupants due to poor removal/dilution of areas with

clean/fresh air. Elevated CO2 levels can also result in tiredness or fatigue of occupants.


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3.4 RELATIVE HUMIDITY

Relative humidity is important in relation to thermal comfort of occupants and the control of microbial growth. Elevated

relative humidity levels are favourable to the growth of moulds and create a general feeling of stuffiness.

The optimum relative humidity range should be kept between 35% and 65%, in accordance with ISO 7730, to maintain

thermal comfort and to minimise the growth of mould causing microbes. This assumes temperature and air movement

levels are also within the acceptable range. Our evaluation criteria are provided in Table 3.1.

3.5 BUILDING MATERIAL MOISTURE LEVELS

Despite there being plenty of literature about the strong association of moisture levels in buildings and the occurrence of

mould growth, there is no established literature or guidance material on what moisture content in different types of

materials is considered to be acceptable to minimise mould growth other than for relative humidity in humidity controlled

environments. Moisture content of walls were tested from locations throughout the property at arm’s length from the

standing height off the Consultant (1.65m).

Guidance for moisture levels are taken from the Extech Dual Moisture Meter Pro (instrument used on site).

TABLE 3.2 EXTECH MOISTURE RANGE

RISK / MEASURE MODE

WOOD MOISTURE EQUIVALENT (%WME)

Wood (%) Building Material (%)

Low Risk, Dry 5 - 11.9 1.5 – 16.9

Medium, At Risk 12 – 15.9 17 – 17.9

High Risk, Wet 16 - 50 20 - 33

3.6 AIRBORNE MICROBIAL CONCENTRATION LEVELS

There are no regulatory agency standards or guidelines for airborne microbial contamination levels in the home or

workplace. Airborne microbial levels should be compared against locally obtained external background levels. Airborne

microbial concentration levels found to be appreciably above external reference levels does not necessarily imply that

conditions are hazardous to health but may indicate an air quality or moisture problem requiring further investigation.

When comparing external to indoor microbial levels, indoor microbial concentration levels would need to be many times

greater than external levels to be considered to be a problem (i.e. indoor levels have a ratio compared with external levels

of 10:1) in accordance with the ACGIH publication titled, ‘Guidelines for the Assessment of Bio-aerosols’, (1989). This

is because microbial fungi and bacterial concentration levels in indoor air varies greatly.

Typical airborne mould (fungi) levels in South East Qld dwellings range from between 51 to 1569 CFU/m3 (Hargreaves,

M, et al 2003:89-101). Studies undertaken by the CSIRO published in their report titled ‘Indoor Air in Typical Australian

Dwellings’ (2010) have identified that airborne bacterial concentration levels can vary between 1554±1449 CFU/m3 in

winter/spring and 1879±1335 CFU/m3 in summer/autumn. The report indicates that airborne fungal levels in the ‘typical

Australian dwelling’ vary between 1167±1233 CFU/m3 in winter/spring and 2089±1642 CFU/m3 in summer/autumn. The

findings demonstrate the extreme variability in sample results both in the same season and due to seasonal variation.

Airborne microbial levels may vary considerably over time due to seasonal variation, outside leaf litter, meteorological

conditions and activities being undertaken nearby (e.g. brewing/cooking activities) which may cause yeast or other

microbial levels to be elevated. Airborne mould concentration levels taken at the same location may vary as much as four


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to five times between replicate samples. Hence, multiple replicate samples must be taken and concentration levels must

be averaged before an assessment can be made.

Where microbial airborne concentration levels are significantly elevated compared to external background levels, further

investigations should be undertaken including further testing for the presence of pathogens and speciation to determine

the predominant types of microbes present to help identify the underlying origin of the microbes.

3.7 MICROBIAL SURFACE CONTAMINATION LEVELS

There are no legislated criteria for surface contamination levels in the office environment or for air conditioning (A/C)

duct contamination levels. However, the American Industrial Hygiene Association (AIHA) monthly magazine (2001)

published a recommended maximum contamination level of 1,500 CFU/cm2 for fungi/mould on surfaces. Below that

concentration level surfaces should be considered to be acceptable or “clean” provided the surfaces are not in the clinical

setting or food preparation setting where a higher level of cleanliness would be expected and more stringent and specific

guidelines are available.

3.8 SUMMARY ASSESSMENT CRITERIA

Our adopted standards and guidelines for each air quality parameter type are listed in Table 3.1. It should be noted that

the indoor air quality guidelines quoted are intended for comparison to a standard closed (air-conditioned) office

environment. These values are not enforceable and values provided are recommended to maintain comfort and wellbeing

of occupants.

TABLE 3.1 SUMMARY OF ASSESSMENT CRITERIA – ALL PARAMETERS

Test surface Air quality guidelines Reference source

Air sampling total mould

viable and non-viable

<2500 fungi spore / m3 (commercial)

<5000 fungi spore / m3 (residential)

Data Interpretation, Spore traps, AIHA

Synergist November 2001

Airborne fungi viable 1167±1233 CFU/m3 (winter/spring);

2089±1642 CFU/m3 (summer/autumn)

CSIRO, Indoor Air Project, 2010 (p. 52)

Airborne bacteria viable 1554±1449 CFU/m3 (winter/spring);

1879±1335 CFU/m3 (summer/autumn)

Surface mould

(General surfaces excluding food

preparation surfaces

>1000 CFU/cm2

Unsatisfactory

(Surface bacteria)

NSW Food Authority (2013), Environmental

swabbing. A guide to method selection and

Consistent technique.

Carbon dioxide Not greater than 700 ppm above local outdoor

concentration levels

ASHRAE Standard 62.1-2016, Appendix C.

Relative humidity 35 % to 65% RH ASHRAE 55-‘2010’

ISO 7730

Temperature Summer: 23°C to 28°C

Winter: 20°C to 25.5°C

ASHRAE 55-2010/ ISO 7730


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4 METHODOLOGY

4.1 OVERVIEW (SUMMARY)

Indoor mould assessment within properties takes on several approaches to assess the potential for there to be an indoor

air quality issue due to mould proliferation in and around the building. These include primarily a visual inspection for

mould growth and an investigation into parameters that generate favourable conditions for mould growth. Conditions

favourable to fungal growth include, a source of moisture, a favourable temperature and a nutrient source, given these

three things and a viable fungal spore and fungal colonisation will proliferate (OSHA, 2013). Secondly, bio-aerosol

monitoring can be undertaken to identify the extent of airborne contamination and attempt to identify the dominant genus

present to attempt to identify if the microbial growth poses a risk to the health of occupants.

The undertaking of bio-aerosol samples for comparison to assess the indoor environment for this purpose presents its

own set of challenges. Initially there is a lack of concrete regulatory or published limits for indoor airborne microbial

levels, and as such the results can be analysed with referenced to industrial and occupational recommended levels,

average recorded residential levels or to outdoor samples. In doing this, consideration must be made for the specific

meteorological conditions, ventilation, ongoing local activities and local sources (both internal and external) of potential

microbes at the exact time of sampling. This wide source of variability is summed up by ACGIH (1999) Bio-aerosols:

Assessment and control, by highlighting that you must “bear in mind that samples provide information about a site as it

existed at the time tested. However, the findings may not represent conditions at a time in the past or future, even the

relatively recent past or near future. Changes in the kinds, concentrations, and proportions of biological agents in the air

can be rapid and substantial.”

Surface samples are generally taken to identify contamination of material or to quantify microbial contamination for the

purpose of clearance and verification of remediation processes.

As such, this report will use bio-aerosol monitoring to complement our primary mould and moisture investigation survey.

This will include a visual inspection of the occupied area and water management systems, an investigation into building

material moisture levels, spot checks into building temperature, relative humidity and general ventilation indications with

CO2 levels.

Details in Appendix A to this report.


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5 RESULTS

5.1 OBSERVATIONS

The following lists the observations on site on the day of the assessment:

— Several plastic cups used in the classroom were found to have visible mould;

— Visible mould was observed eaves lining on the external eaves of Building B;

— Visible mould was observed throughout the Metal Shed in Building F;

— Visible mould was observed outside building D, the movement linings; and

— Visible dust and organic matter was observed on the HVAC inlets outside Building B.

5.2 INDOOR AIR QUALITY PARAMETERS

TABLE 5.1 RESULTS OF AIR QUALITY AND THERMAL COMFORT PARAMETERS (PASSFIELD PARK

SCHOOL)

Date Test location CO2, (ppm) Temp., °C Relative

humidity, % Moisture content

(WME%)

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BR1020 440 17.9 30.7

Plasterboard – NW 3%

Brick walls – 7 – 11.8%

Floor - 0%

BR1017 490 18.2 30.4 Brick walls – 1.7 – 4.2%

Floor - 0%

BR1008 470 17.8 32

Concrete, Brick and

Floor – 0%

Timber – 3%

BR1019 530 16.8 33.2 Brick walls – 5.2 – 7.8%

Floor - 0%

BR1015 470 15.8 30.5

Brick walls – 0%

Floor - 0%

Timber – 3.8%

BR1028 564 17.6 31.4


Floor - 0%

Plasterboard – 4.3%

BR1003 495 17.9 32.5 Tiled

BR1002 430 18 31.7 Tiled

BR1001 498 18 30.5 Concrete – 0%

Timber – 4.2%


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(WME%)

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BR1027 482 18.2 28.5


Brick walls – 2.9 – 9.5%

Floor - 0%

BR1005 406 17.7 29.8

Brick walls – 4.9 –

11.7%

Floor - 0%

BR1006 395 16.5 30.5

Brick walls– 8.6 – 12%

Floor - 0%

Timber – 5.8%

BR1029 790 18 35.3

Plasterboard – 2.6 –

4.1%

Floor - 0%


BR0004 746 21.4 28.1 Brick walls – 1.3 – 2.4%

Timber – 5.6%

BR0005 640 21.7 26.7 Brick walls– 3.5 – 7.9%

Timber – 2.5%

BR0031 560 21.5 24.1 Brick walls – 1.9 – 7.6%

BR0028 690 20.7 26 Brick walls – 1.9 – 4.6%

BR0007 950 20.4 33.1 Brick walls – 3.5 – 9%

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BR0010 1100 20.4 24 Brick walls – 5 – 13%

BR0009 1000 20.5 34.5 Brick walls – 5 – 13%

BR0001 660 20.4 29 Brick walls – 5 – 13%

BR1012 537 30 19 Brick walls – 8-9%

Skirting board – 8.6%

BR1030 585 29.8 19 Gypsum walls – 7 - 8.3%

BR1008 924 31 20.1


Timber trims – 7 – 8%

Gypsum panels – 8%

BR1007 544 27.5 19.7 Brick walls – 8– 9%

Timber trims – 8 - 9%

BR0016 1086 35.8 18.5 Brick walls – 7.5 - 8%

Timber trims – 8 - 9%

Outdoor Air – 6/9/17 418 17.3 26.8 -


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(WME%)

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BR0017 - Home Base E

480 17.4 45.9 -

BR0018 - Practical

Activities E 565 16.6 41.8 -

BR0019 - General

Storeroom 504 16.6 43.2 -

BR0020 – Toilet E 471 16.7 39.9 -

BR0022 - Home Base E 565 16.7 41.3 -

BR0023 – Staff Room

Annex 569 16.6 40.6 -

BR0033 - Disabled

Shower/Toilet 565 16.5 41.8 -

BR0003 536 16.7 536 -

BR0004 600 16.3 600 -

BR0009 Practical

Activities - M hb

755 17.3 40.9

-

BR0010 - Other 759 16.8 38.2 -

BR0011 - Laundry - S 658 16.6 40.7 -

BR0012 - Toilet - M 531 16.2 38.8 -

BR0014 - Movement 552 17.3 39 -

BR0002 Toilets - Boys 500 17.1 36.4 -

BR0003 Toilets - Girls 460 17.3 33.7 -

BR0001 - Cleaning

Supplies 820 18.3 35.1 -

Outdoor Air – 7/9/17 409 17.3 32.6 -

5.3 AIRBORNE MICROBIAL ORGANISM CONCENTRATION

LEVELS

The calculated average airborne colony forming micro-organism levels from the replicate samples for each area where

samples were taken are provided in Table 5.2, showing the mean colony forming microbial concentration and standard

deviation for each species or microbial grouping. The microbial laboratory certificate of analysis for airborne mould,

presumptive yeast and bacteria is provided in Appendix B.


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TABLE 5.2 RESULTS OF AIRBORNE MICROBIAL SAMPLING (PASSFIELD PARK SCHOOL)

Sample Identification Airborne Concentration, CFU/m3

Date Location Sample No. Bacteria Yeast Mould Total Count

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BR0003

1 430 18 18 466

2 450 18 110 578

3 480 18 270 768

sample mean 453 18 133 604

std dev'n 25 0 128 153

BR0004

1 660 36 290 986

2 570 36 180 786

3 480 18 210 708

sample mean 570 30 227 827

std dev'n 90 10 57 143

BR0005

1 480 18 230 728

2 460 18 180 658

3 710 36 200 946

sample mean 550 24 203 777

std dev'n 139 10 25 150

BR0007

1 790 89 340 1219

2 800 18 230 1048

3 1000 18 270 1288

sample mean 863 42 280 1185

std dev'n 118 41 56 124

BR0010

1 570 18 290 878

2 500 18 320 838

3 520 36 250 806

sample mean 530 24 287 841

std dev'n 36 10 35 36

BR0016 1 460 36 300 796

2 230 18 450 698

3 290 18 250 558


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sample mean 327 24 333 684

std dev'n 119 10 104 120

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BR0031

1 590 18 180 788

2 590 18 250 858

3 770 89 140 999

sample mean 650 42 190 882

std dev'n 104 41 56 107

BR1001

1 550 18 180 748

2 790 54 200 1044

3 570 18 230 818

sample mean 637 30 203 870

std dev'n 133 21 25 155

BR1002

1 110 18 210 338

2 450 36 270 756

3 570 18 340 928

sample mean 377 24 273 674

std dev'n 239 10 65 303

BR1003

1 710 18 250 978

2 450 18 250 718

3 320 18 360 698

sample mean 493 18 287 798

std dev'n 199 0 64 156

BR1005

1 210 18 89 317

2 130 18 36 184

3 180 18 110 308

sample mean 173 18 78 270

std dev'n 40 0 38 74

BR1006

1 460 18 210 688

2 540 18 340 898

3 290 18 410 718


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sample mean 430 18 320 768

std dev'n 128 0 101 114

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BR1007

1 270 18 18 306

2 180 18 230 428

3 89 18 210 317

sample mean 180 18 153 350

std dev'n 91 0 117 67

BR1008

1 140 18 180 338

2 140 18 110 268

3 140 18 89 247

sample mean 140 18 126 284

std dev'n 0 0 48 48

BR1012

1 250 18 130 398

2 300 18 320 638

3 660 36 410 1106

sample mean 403 24 287 714

std dev'n 224 10 143 360

BR1030

1 130 18 210 358

2 160 36 250 446

3 320 18 130 468

sample mean 203 24 197 424

std dev'n 102 10 61 58

BR0016

1 460 36 300 796

2 230 18 450 698

3 290 18 250 558

sample mean 327 24 333 684

std dev'n 119 10 104 120

BR1017

1 200 18 130 348

2 290 18 180 488

3 500 18 71 589


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sample mean 330 18 127 475

std dev'n 154 0 55 121

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BR1019

1 270 18 160 448

2 290 18 230 538

3 450 18 320 788

sample mean 337 18 237 591

std dev'n 99 0 80 176

BR1020

1 210 18 270 498

2 270 54 71 395

3 200 36 140 376

sample mean 227 36 160 423

std dev'n 38 18 101 66

BR1027

1 36 18 230 284

2 140 18 89 247

3 180 18 130 328

sample mean 119 18 150 286

std dev'n 74 0 73 41

BR1029

1 360 18 89 467

2 320 18 54 392

3 460 36 18 514

sample mean 380 24 54 458

std dev'n 72 10 36 62

External BR0012 1 680 18 210 908

2 680 18 290 988

3 390 18 250 658

sample mean 583 18 250 851

std dev'n 167 0 40 172

External BR0017 1 210 18 89 317

2 680 18 200 898

3 730 18 290 1038


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sample mean 540 18 193 751

std dev'n 287 0 101 382

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CR0003

1 250 18 89 357

2 130 18 110 258

3 210 18 130 358

sample mean 197 18 110 324

std dev'n 61 0 21 57

CR0004

1 71 36 250 357

2 140 18 290 448

3 210 18 180 408

sample mean 140 24 240 404

std dev'n 70 10 56 46

CR0009 1 1800 18 210 2028

2 2300 18 180 2498

3 1400 18 500 1918

sample mean 1833 18 297 2148

std dev'n 451 0 177 308

CR0014 1 160 18 210 388

2 130 36 160 326

3 89 18 140 247

sample mean 126 24 170 320

std dev'n 36 10 36 71

BR0022

1 71 18 360 449

2 200 18 380 598

3 230 18 570 818

sample mean 167 18 437 622

std dev'n 84 0 116 186

BR0018

1 300 18 460 778

2 140 18 390 548

3 140 18 380 538


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sample mean 193 18 410 621

std dev'n 92 0 44 136

External EXT C

7/9

1 200 18 110 328

2 140 18 110 268

3 180 18 200 398

sample mean 173 18 140 331

std dev'n 31 0 52 65


The results of microbial surface swab testing are provided in Table 5.3 below.

TABLE 5.3 RESULTS OF SURFACE MICROBIAL SAMPLING (PASSFIELD PARK SCHOOL)

Date Sample No and Location Bacteria Yeast Mould Total Count

Cfu/Swab Cfu/cm2

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17

BR1020 120 50 10 180 1.8

BR1017 50 10 10 70 0.7

BR1018 150 20 10 180 1.8

BR1019 10 10 10 30 0.3

BR1015 70 40 10 120 1.2

BR1003 10 20 10 40 0.4

BR1028 30 10 10 50 0.5

BR1001 80 10 10 100 1

BR1002 10 10 10 30 0.3

BR1005 10 10 10 30 0.3

BR1006 10 10 10 30 0.3

BR1027 20 10 10 40 0.4

BR1029 730 360 10 1100 11

BR0003 10 10 10 30 0.3

BR0004 20 10 10 40 0.4

BR0005 10 10 10 30 0.3

BR0031 90 10 10 110 1.1

BR0029 10 30 10 50 0.5

BR0007 10 10 10 30 0.3

BR0010 10 10 10 30 0.3


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BR0009 40 10 10 60 0.6

BR0001 90 10 10 110 1.1

BR1010 -1 190 130 10 330 3.3

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17

BR1010 -2 230 180 10 420 4.2

BR1010 -3 380 310 10 700 7

BR1007 - 1 290 450 10 750 7.5

BR1007 - 2 150 160 10 320 3.2

BR1007 - 3 80 10 10 100 1

BR1007 - 4 150 270 10 430 4.3

BR1007 - 5 10 30 10 50 0.5

BR0016 900 430 40 1370 13.7

BR0013 - 1 20 50 10 80 0.8

BR0013 - 2 40 100 10 150 1.5

BR0013 - 3 130 50 10 190 1.9

BR1012 -1 40 10 10 60 0.6

BR1012 -2 20 20 10 50 0.5

BR1012 -3 20 10 10 40 0.4

BR1030 -1 370 40 10 420 4.2

BR1030 -2 10 40 10 60 0.6

BR1030 -3 350 90 10 450 4.5

BR1008 - 1 70 260 10 340 3.4

BR1008 - 2 10 10 10 30 0.3

BR1008 - 3 20 10 10 40 0.4

BR1008 - 4 10 10 10 30 0.3

Blank 1 10 10 10 30 0.3

Blank 2 10 10 10 30 0.3

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017

17

BR0017 - N wall 280 30 10 320 3.2

BR0033 - N wall 20 10 10 40 0.4

BR0018 - N wall 500 - - 500 5

BR0022 - NE wall 80 10 10 100 1

BR0023 - NE ceiling 10 10 10 30 0.3

BR0020 - S wall 80 10 10 100 1

BR0019 - Shelf 100 - - 100 1


WSP October 2017

Page 17

CR0004 - NW 300 120 10 430 4.3

CR0003 - Shelf 200 - - 200 2

CR0009 - S Wall 200 190 10 400 4

CR0014 - SE wall sill 400 330 10 740 7.4

CR0012 - E wall 10 10 10 30 0.3

7 S

epte

mb

er 2

017

17

CR0011 - S wall - Mid 100 80 10 190 1.9

CR0013 - N wall mid 10 10 10 30 0.3

CR0010 - SE corner 10 10 10 30 0.3

DR0002 - E Wall Boy 6000 10 10 6020 60.2

DR0003 - W wall girl 10 60 10 80 0.8

DR0001 - Ceiling central 10 3000 - 3010 30.1

F - Metal shed wall 10 120 10 140 1.4

E - Ceiling south corner 220 3000 10 3230 32.3

BR1026 - Ground floor

ceiling 10 1400 10 1420 14.2

Silver class - Plastic cup 30000 3000 - 33000 330

Blank 1 10 10 10 30 0.3

Blank 2 10 10 10 30 0.3

Note – Locations without data is due to the laboratory not being able to count due to overgrown mould


WSP October 2017

Page 18

6 DISCUSSION

6.1 INDOOR AIR QUALITY

The CO2 level were below the acceptable level (700ppm above local outdoor conditions) except for two locations namely

BR0010 and BR0009 taken on the 6 September – however retesting on the following day returned results within the

acceptable results.

Temperature levels were below the winter guidelines however is still acceptable.

All other parameters were within the recommended guidelines as documented in Table 4.1.

6.2 AIRBORNE MICROBIAL ORGANISM CONCENTRATION

LEVELS

The calculated average airborne colony forming micro-organism levels from the replicate samples for each area where

samples were taken are provided in Table 5.2, showing the mean colony forming microbial concentration and standard

deviation for each species or microbial grouping. The microbial laboratory certificate of analysis for airborne mould,

presumptive yeast and bacteria is provided in Appendix C.

One location CR0009 exceeded the guidelines for winter/spring for bacteria and mould. The airborne levels indicate

elevated concentrations when compared to outdoor concentrations in the following locations for the relevant days:

— BR0004 – Yeast only;

— BR0007 – Bacteria, yeast and mould;

— BR0010 – Mould;

— BR0031 – Yeast and bacteria;

— BR1001 – Yeast and bacteria;

— CR0004 – Yeast and mould;

— BR0022 – Mould; and

— BR0018 – Mould and bacteria.


The results of microbial surface swab testing are provided in Table 5.3.

There was a minimal amount of mould detected on location of samples, all well below the recommended level of 1500

CFU/cm2. During the general inspection, there were staining found at various locations.


WSP October 2017

Page 19

7 RECOMMENDATIONS Following the sampling, WSP recommends the following:

— Further cleaning within CR0009, BR0004, BR0007; BR0010; BR0031; BR1001; CR0004; BR0022 and BR0018 is

recommended. Air scrubbers should be used in these locations to filter out particles and microbes from the air within

these spaces and thus, provide better overall air quality;

— Consideration should be given to increasing the frequency of cleaning at the school on a routine basis. This includes

more thorough cleaning of cups and mugs where mould staining was visually observed. If mould staining cannot be

physically removed from these items, these items should be disposed of as care must be taken not to cross-

contaminate between items and areas.

Refer to Appendix F for remediation guidelines and detailed steps.


WSP October 2017

Page 20


WSP October 2017

Page 21

BIBLIOGRAPHY

American Conference of Government Industrial Hygienists (ACGIH). 1999. Bio-aerosols: assessment and

control.

ASHRAE Standard 55, 2010, ‘Thermal Environmental Conditions for Human Occupancy’.

ASHRAE Standard 62, 2004, ‘Ventilation for Acceptable Indoor Air Quality’.

Bureau of Meteriology (2015). Sydney, New South Wales November 2015 Daily Weather Observations.

Retrieved from : http://www.bom.gov.au/climate/dwo/IDCJDW2124.latest.shtml

Environmental Protection (Air) Policy 2008, (Qld Government).

Hargreaves, M., Parappukkaran, S., Morawska, L., Hitchins, J., He, C., & Gilbert, D. 2003. A pilot investigation

into associations between indoor airborne fungal and non-biological particle concentrations in residential houses

in Brisbane, Australia. The Science of the Total Environment, 312(1-3), pp. 89-101.

ISO 7730-2005, Ergonomics of the thermal environment – Analytical determination and interpretation of

thermal comfort using calculation of the PMV and PPD indices and local thermal comfort criteria.

Ellis, D. and Kidd, S. (2015). National Mycology Reference Centre. University of Adelaide. Retrieved from;

http://www.mycology.adelaide.edu.au/

National Health and Medical Research Council (NHMRC) ‘Goals for maximum permissible levels of pollutants

in ambient air’, (rescinded in 2002).

Stuttard, E. 2010. Testing for IAQ Microbial Indicators- Outlining strategies for measuring micro-organisms and

the interpretation of microbial test results. Unpublished paper. EML Consulting Services Qld Pty Ltd.

Standards Australia. 1668.2. 2012. ‘The use of ventilation and air conditioning in buildings – Part 2: Mechanical

ventilation in buildings’.

U.S. Department of Labour, occupational safety and health administration, directorate of technical support and

emergency management, office of science and technology assessment. (2013). A brief guide to mould in the

workplace. (OSHA, 2013). Retrieved from https://www.osha.gov/dts/shib/shib101003.html.

Western Wood Products Association (2002). Fast Facts: Mold and Wood Products. (WWPA, 2002). Retrieved

from http://www.wwpa.org/Portals/9/docs/PDF/FF-Mold%201.pdf

WHO-2005, ‘Air Quality Guidelines for particulate matter, ozone, nitrogen dioxide and sulphur dioxide’.

http://www.bom.gov.au/climate/dwo/IDCJDW2124.latest.shtml

https://www.osha.gov/dts/shib/shib101003.html

METHODOLOGY

A1 METHODOLOGY Sampling strategy

In accordance with the agreed scope of works, our assessment included an assessment of the following air quality

parameters:

Airborne microbial sampling including total colony forming units per cubic metre of air for bacteria, fungi and

presumptive yeasts in accordance with “NIOSH method 0800 - Bioaerosol sampling (Indoor Air)”.

Air quality and thermal comfort parameters including, carbon dioxide, relative humidity and temperature.

Surface sampling of targeted surfaces including the inside of air conditioning supply ducts for evidence of elevated

bacteria, fungi and yeast.

Sample/testing techniques used

Air quality and thermal comfort parameter

Indoor air quality instrumentation used for the assessment and their respective performance characteristics are shown in

the Table below.

Table A-1 Air testing devices

Parameter Sampling device Detection range Resolution Accuracy

Relative humidity TSI Q Trak IAQ Monitor 5 to 95% RH 0.1% RH ±3% of RH reading

Carbon dioxide TSI Q Trak IAQ Monitor 0 to 5,000 ppm CO2 0.1 ppm CO2

±3% of reading or 50 ppm CO2 whichever, is greater

Temperature TSI Q Trak IAQ Monitor 0 to 60°C 0.1°C

±0.5°C of temperature reading

Microbial air sampling method

Microbial sampling was undertaken using Trypticase soy agar (TSA) plates (selective for bacteria) and Malt Extract Agar

(MEA) plates (selective for fungi and yeasts). Agar plates were inserted into the Bio-aerosol impactor sampler connected

to sample pump calibrated to operate at a flow rate of 27 L per minute for two minutes, collecting 54 L of air. This

sample size offers a limit of detection of <19 colony forming units per cubic metre of air (CFU/m3).

The flow rates were checked against a calibrated field rotameter and the flow rate recorded prior to and post survey.

Three replicate samples were collected for each test location and each type of agar in accordance with NIOSH method

0800 ‘Bio-aerosol Sampling for Microbes in Indoor Air’. Each sample was sealed after collection, labelled and placed in

an insulated container on ice for transit to the NATA accredited microbial laboratory.

Reference samples to be collected in an external area for comparative purposes as part of our assessment methodology.

These samples are to be taken away from any possible sources of mould to determine a back ground level at the time of

the survey. A single blank plate i.e. one TSA and one MEA plate to be included as blanks to ensure quality and give the

client assurance.

Microbial surface sampling method

The following sampling methodology was used to collect samples for analysis surface bacteria, fungi and yeast on

surfaces:

Sterile Cotton Bud Swabs - AIMES Media were obtained from the microbial laboratory.


WSP October 2017

Page A-24

Surfaces were sampled by removing the sterile cotton bud from within the plastic wrapper and wiping a 25 cm2

test surface with the cotton bud tip. The tip is gently rotated onto the test surface, moving the tip in a zigzag

motion until all the test surface area had been wiped using as much of the bud as possible.

A 25 cm2 test template (5 cm x 5 cm) was used to ensure surface sample test areas were consistent.

Whilst handling the cotton bud only the plastic end cap was handled to avoid cross contamination of the cotton

bud.

The sterile AIMES tube was then opened by unscrewing the cap.

The cotton bud was then placed with the cotton tip first into the agar medium, sealing the cap afterwards.

Samples were then labelled with unique, individual identification numbers immediately after collection.

Sample identification numbers are then recorded against sample location details in the chain of custody sample

submission form.

Samples and the chain of custody form are placed in an esky on ice and taken directly to the laboratory for

analysis for total bacteria, total fungi and yeasts.

DEFINITIONS


WSP October 2017

Page B-1

B1 DEFINITIONS

Assessment Set of formal methods for determining the nature, extent and levels of

indoor air quality present.

Acceptable indoor air

quality

Air in which there are no known contaminants at harmful concentrations as

determined by cognizant authorities and with which a substantial majority

(80% or more) of occupants exposed do not express dissatisfaction.

Air conditioning The process of treating air to meet the requirements of a conditioned space

by controlling its temperature, humidity, cleanliness and distribution.

ASHRAE American Society of Heating and Air-Conditioning Engineers, 2013

Dampness Any visible, measurable or perceived outcomes of excess moisture that

causes problems in buildings such as mould, leaks or material degradation,

mould odour or directly measured excess moisture (in terms of relative

humidity in air or moisture content of materials).

HVAC Heating, ventilation and air conditioning (systems).

IAQ Indoor air quality

ISO International Organisation for Standardisation

HESP Health, Environment and Safety Plan (HESP) required to be completed

under the WSP Australia’s business management system (BMS)

NHMRC National Health and Medical Research Council (NHMRC).

Moisture Includes water vapour, water in a medium such as within soil or insulation

but not bulk water or flowing water.

Mould Mould is a generic or common term for microscopic fungi that grow in the

form of multicellular filaments called hyphae. In contrast, microscopic fungi

that grow as single cells are called yeasts.

PM2.5 Particulate Matter, (Fine particles) of less than 2.5µm in diameter; generally

found in smoke and haze, emitted from natural sources like forest fires,

industrial combustion sources, and wood heating, or formed when gases

react in the air.

PM10 Particulate matter (Coarse particles) of less than 10 µm in diameter found

near roadways and dusty industries such as quarrying, and from natural

sources such as dust storms and pollens.

PID Photo-ionisation device. Device typically used to screen for the presence of

ionisable hydrocarbons in air. Displays results as total VOCs in terms of an


WSP October 2017

Page B-2

isobutylene equivalent concentration, unless the PID is calibrated using

alternative gas (e.g. hexane).

PPE Personal protective equipment (impervious gloves, Type 5 and 6 coveralls,

steel toe boots, eye protection)

Remediation Means removal or mitigation of causal elements giving rise to IAQ

problems.

RPE Respiratory protective equipment (combination organic vapour, acid gas,

ammonia, mercury vapour cartridge with half or full face respirator mask)

compliant with AS 1716 and selected and used in accordance with AS 1715.

TSP Total suspended particulate matter. Particulate matter is the term for solid or

liquid particles found in the air including aerosols, dust, smoke and fog.

Includes the subsets of PM10 and PM2.5. TSP means particles in the

air environment with an equivalent aerodynamic diameter of not more than

50 microns. (This definition varies between jurisdictions and manufacturers

with some instruments including the Dust Trak measuring TSP to include

particulate with aerodynamic diameter of not more than 100 microns

Ventilation Process of supplying or removing air by natural or mechanical means to or

from any space.

VOCs Volatile organic hydrocarbons. Examples of VOCs include construction

adhesive solvents, paint thinners, isopropyl alcohols, and aerosol

propellants.

CERTIFICATE OF ANALYSIS – AIRBORNE

MICROBIAL SAMPLING

SYDNEY LABORATORY

PRELIMINARY REPORT

2171251G

Unit C2, 391 Park Road

Page 1 of 602 8718 6888 Fax 02 8718 6899

Regents Park, NSW 2143

Regents Park, NSW

P.O.#:

Sydney, NSW

Location of Test: (except where noted)

PRE-1439-0

Rachel Jiang

COPY TO:

WSP Environment & Energy

Level 27, 680 George StreetSYDNEY, NSW 2000

Charlotte Bondoc

ORIGINAL TO:

Team AdministratorWSP Environment & Energy


None

Received From:

29/09/2017

Supersedes:

Received Date:

Report Date:

Report No.:SILLIKER AUSTRALIA

07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

BR0018 - B1

Date Sampled: 07.09.2017

Time Sampled: 7:35am - 12:05pm

454121250

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Desc. 4: Sampling Volume/Time: 28L/min Date Started::

7/09/2017

Analyte Result Units Method Reference Result Date Loc.

CFU/m3300Total Bacterial Count M34 10/09/2017

Desc. 1:

Desc. 2:

Desc. 3:

BR0018 - B2



454121251

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

BR0018 - B3



454121252

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

BR0022 - B1



454121253

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



THIS IS A PRELIMINARY REPORT. It is provided at the instruction of the client for their convenience. Preliminary reports reflect only data available at the time of issuance, prior to final review and authorization of results. Clients acting on these reports do so at their own risk. Complete and final results will be issued on a Certificate of Analysis when all testing is complete. The final report is the definitive report.

The data pertains solely to the analytical and sampling procedure(s) used and the condition and homogeneity of the sample(s) as received. The data therefore may not be representative of the lot or batch or other samples. Consequently the data may not necessarily justify the acceptance or rejection of a lot or batch, a product recall or support legal proceedings. It is the responsibility of the client to provide all information relevant to the analysis requested. The report does not imply that Silliker Australia has been engaged to consult upon the consequences of the analysis and for any action that should be taken as a result of the analysis. This report shall not be reproduced except in full, without the written approval of the laboratory.

AU-COA-33TGA Licence No: MI-04072005-LI-000664-2

SYDNEY LABORATORY

PRELIMINARY REPORT

2171251G


Page 2 of 602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


PRE-1439-0

Rachel Jiang

COPY TO:



Charlotte Bondoc

ORIGINAL TO:



None

Received From:

29/09/2017

Supersedes:

Received Date:

Report Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

BR0022 - B2



454121255

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

BR0022 - B3



454121256

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

CR0004 - B1



454121260

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

CR0004 - B2



454121261

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017






SYDNEY LABORATORY

PRELIMINARY REPORT

2171251G


Page 3 of 602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


PRE-1439-0

Rachel Jiang

COPY TO:



Charlotte Bondoc

ORIGINAL TO:



None

Received From:

29/09/2017

Supersedes:

Received Date:

Report Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

CR0004 - B3



454121262

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

CR0003 - B1



454121263

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

CR0003 - B2



454121265

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

CR0003 - B3



454121266

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017






SYDNEY LABORATORY

PRELIMINARY REPORT

2171251G


Page 4 of 602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


PRE-1439-0

Rachel Jiang

COPY TO:



Charlotte Bondoc

ORIGINAL TO:



None

Received From:

29/09/2017

Supersedes:

Received Date:

Report Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

CR0009 - B1



454121267

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

CR0009 - B2



454121269

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

CR0009 - B3



454121270

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

CR0014 - B1



454121271

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017






SYDNEY LABORATORY

PRELIMINARY REPORT

2171251G


Page 5 of 602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


PRE-1439-0

Rachel Jiang

COPY TO:



Charlotte Bondoc

ORIGINAL TO:



None

Received From:

29/09/2017

Supersedes:

Received Date:

Report Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

CR0014 - B2



454121273

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

CR0014 - B3



454121275

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

Outdoor - Ext C - B1



454121276

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



Desc. 1:

Desc. 2:

Desc. 3:




454121277

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017






SYDNEY LABORATORY

PRELIMINARY REPORT

2171251G


Page 6 of 602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


PRE-1439-0

Rachel Jiang

COPY TO:



Charlotte Bondoc

ORIGINAL TO:



None

Received From:

29/09/2017

Supersedes:

Received Date:

Report Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:




454121278

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


7/09/2017



MAREE DUNNSTATE OPERATIONS MANAGER NORTH - NSW & QLD




SYDNEY LABORATORY

CERTIFICATE OF ANALYSIS

217125114


Page 1 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:

COA No:SILLIKER AUSTRALIA

06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

Passfield Park Public School

BR0003

B1

454119692

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Desc. 4: Date Sampled: 06/09/2017 Date Started::

6/09/2017

Desc. 5: Time Sampled: 8:40am - 3:30pm

Desc. 6: Volume Sampled: 56L

Desc. 7: Sampling Time: 2 Minutes



Desc. 1:

Desc. 2:

Desc. 3:


BR0003

B2

454119694

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0003

B3

454119695

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






NATA Corporate Accreditation Number: 2020 Melbourne Microbiology Site No: 2013. Sydney Microbiology Site No: 2759, Chemistry Site No: 2135Perth Microbiology Site No: 10635Brisbane Microbiology Site No: 15147Accredited for compliance with ISO/IEC 17025. This document shall not be reproduced except in full.



SYDNEY LABORATORY


217125114


Page 2 of 2402 8718 6888 Fax 02 8718 6899


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P.O.#:

Sydney, NSW


SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0004

B1

454119696

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0004

B2

454119697

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0004

B3

454119699

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 3 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0005

B1

454119700

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0005

B2

454119701

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0005

B3

454119702

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 4 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0007

B1

454119704

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0007

B2

454119705

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0007

B3

454119706

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 5 of 2402 8718 6888 Fax 02 8718 6899


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P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0010

B1

454119708

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0010

B2

454119709

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0010

B3

454119710

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


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Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0031

B1

454119714

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0031

B2

454119715

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0031

B3

454119716

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 7 of 2402 8718 6888 Fax 02 8718 6899


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Charlotte Bondoc

TO:

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None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1001

B1

454119717

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1001

B2

454119718

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1001

B3

454119719

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 8 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1002

B1

454119721

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1002

B2

454119722

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1002

B3

454119723

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 9 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1003

B1

454119725

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1003

B2

454119727

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1003

B3

454119728

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 10 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1005

B1

454119730

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1005

B2

454119731

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1005

B3

454119732

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 11 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1006

B1

454119734

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1006

B2

454119735

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1006

B3

454119736

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 12 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1007

B1

454119738

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1007

B2

454119740

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1007

B3

454119742

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 13 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1008

B1

454119743

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1008

B2

454119745

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1008

B3

454119747

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 14 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1012

B1

454119753

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1012

B2

454119754

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1012

B3

454119755

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 15 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1030

B1

454119756

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1030

B2

454119757

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1030

B3

454119758

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 16 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1017

B1

454119759

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1017

B2

454119760

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1017

B3

454119761

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 17 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1019

B1

454119763

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1019

B2

454119764

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1019

B3

454119765

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 18 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1020

B1

454119766

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1020

B2

454119767

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1020

B3

454119769

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 19 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1027

B1

454119772

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1027

B2

454119773

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1027

B3

454119774

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 20 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1029

B1

454119775

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1029

B2

454119776

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR1029

B3

454119778

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 21 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0016

B1

454119786

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0016

B2

454119787

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:


BR0016

B3

454119788

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 22 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


Outdoor - EXT BR0012

B1

454119791

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:



B2

454119793

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:



B3

454119794

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 23 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:



B1

454119795

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:



B2

454119796

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






Desc. 1:

Desc. 2:

Desc. 3:



B3

454119799

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017









SYDNEY LABORATORY


217125114


Page 24 of 2402 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51056919-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

15/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results





SYDNEY LABORATORY


2171251G


Page 1 of 902 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055812-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

12/09/2017

Supersedes:

Received Date:

COA Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

1. BR0017

North Wall


454121354

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017


CFU/swab280Total Bacterial Count M17.2 10/09/2017

CFU/swab30 est.Total Mould Count M17.2 12/09/2017

CFU/swab<10Total Yeast Count M17.2 12/09/2017

Desc. 1:

Desc. 2:

Desc. 3:

2. BR0033

North Wall


454121356

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017


CFU/swab20 est.Total Bacterial Count M17.2 10/09/2017

CFU/swab<10Total Mould Count M17.2 12/09/2017


Desc. 1:

Desc. 2:

Desc. 3:

3. BR0018

North Wall


454121357

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017



CFU/swabUnable to determine mould count due to overgrown

mould.

Total Mould Count M17.2 12/09/2017

CFU/swabUnable to determine yeast count due to overgrown

mould.

Total Yeast Count M17.2 12/09/2017




SYDNEY LABORATORY


2171251G


Page 2 of 902 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055812-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

12/09/2017

Supersedes:

Received Date:

COA Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

4. BR0022

North-East Wall


454121358

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

5. BR0023

North-East Corner Ceiling


454121359

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017


CFU/swab<10Total Bacterial Count M17.2 10/09/2017



Desc. 1:

Desc. 2:

Desc. 3:

6. BR0020

South Wall


454121360

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017








SYDNEY LABORATORY


2171251G


Page 3 of 902 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055812-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

12/09/2017

Supersedes:

Received Date:

COA Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

7. BR0019

Shelting


454121361

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017




mould.



mould.


Desc. 1:

Desc. 2:

Desc. 3:

8. CR0004

North-West


454121362

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017








SYDNEY LABORATORY


2171251G


Page 4 of 902 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055812-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

12/09/2017

Supersedes:

Received Date:

COA Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

9. CR0003

Shelfing


454121364

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017




mould.



mould.


Desc. 1:

Desc. 2:

Desc. 3:

10. CR0009

South Wall


454121366

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017



CFU/swab190Total Mould Count M17.2 12/09/2017


Desc. 1:

Desc. 2:

Desc. 3:

11. CR0014

SE Wall Sill


454121368

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017








SYDNEY LABORATORY


2171251G


Page 5 of 902 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055812-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

12/09/2017

Supersedes:

Received Date:

COA Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

12. CR0012

East Wall (Lower)


454121370

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

13. CR0011

South Wall Mid Point


454121373

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

14. CR0013

North Wall Mid Point


454121374

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017








SYDNEY LABORATORY


2171251G


Page 6 of 902 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055812-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

12/09/2017

Supersedes:

Received Date:

COA Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

15. CR0010

South East Corner Mid Wall


454121375

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

16. DR0002

East Wall Boy


454121377

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

17. DR0003

Western Wall Girl


454121379

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017




CFU/swab10Total Yeast Count M17.2 12/09/2017




SYDNEY LABORATORY


2171251G


Page 7 of 902 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055812-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

12/09/2017

Supersedes:

Received Date:

COA Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

18. DR0001

Ceiling Central


454121381

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017



CFU/swab>3000 est.Total Mould Count M17.2 12/09/2017

CFU/swabUnable to determine yeast count due to TNTC

mould.


Desc. 1:

Desc. 2:

Desc. 3:

19. Building F

Metal Shed Wall


454121382

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

20. Building E

Ceiling South Corner


454121385

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017








SYDNEY LABORATORY


2171251G


Page 8 of 902 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055812-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

12/09/2017

Supersedes:

Received Date:

COA Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

21. BR 1026

Ceiling, Ground Floor


454121387

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

22. Silver Class

Plastic Cup


454121389

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017


CFU/swab>30000 est.Total Bacterial Count M17.2 10/09/2017


CFU/swabUnable to determine yeast count due to TNTC

mould.


Desc. 1:

Desc. 2:

Desc. 3:

23. Blank

1


454121390

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017








SYDNEY LABORATORY


2171251G


Page 9 of 902 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055812-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

12/09/2017

Supersedes:

Received Date:

COA Date:


07/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

24. Blank

2


454121391

NORMAL

7.2

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

7/09/2017









SYDNEY LABORATORY


217125114


Page 1 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51055364-0

Charlotte Bondoc

TO:

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None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

S1

BR1020

Date Sampled: 06/09/2017

454119628

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S2

BR1017


454119630

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S3

BR1018


454119631

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 2 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

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SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

S4

BR1019


454119632

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S5

BR1015


454119633

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S6

BR1003


454119634

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 3 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

S7

BR1028


454119635

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S8

BR1001


454119636

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S9

BR1002


454119637

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 4 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

S10

BR1005


454119638

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S11

BR1006


454119639

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S12

BR1027


454119640

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 5 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

S13

BR1029


454119642

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S14

BR0003


454119643

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S15

R0004


454119644

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 6 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

S16

BR0005


454119645

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S17

BR0031


454119646

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S18

BR0029


454119649

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 7 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

S19

BR0007


454119650

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S20

BR0010


454119652

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

S21

BR0009


454119653

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 8 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

S22

BR0001


454119655

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1010

1


454119656

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1010

2


454119657

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 9 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

BR1010

3


454119658

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1007

1


454119659

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1007

2


454119660

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 10 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

BR1007

3


454119662

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1007

4


454119663

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1007

5


454119664

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 11 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

BR0016

1


454119665

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1013

1


454119666

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1013

2


454119667

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 12 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

BR1013

3


454119668

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1012

1


454119670

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1012

2


454119671

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 13 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

BR1012

3


454119672

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1030

1


454119675

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1030

2


454119676

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 14 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

BR1030

3


454119677

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1008

1


454119678

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1008

2


454119680

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 15 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

BR1008

3


454119682

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

BR1008

4


454119683

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017





Desc. 1:

Desc. 2:

Desc. 3:

Blank

1


454119684

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017








SYDNEY LABORATORY


217125114


Page 16 of 1602 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51055364-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

11/09/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:

Blank

2


454119685

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:

Date Started::

6/09/2017









SYDNEY LABORATORY


217125114


Page 1 of 3502 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0003

M1

454119811

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017





CFU/m3<18Total Mould Count M34 12/09/2017

CFU/m3<18Total Yeast Count M34 12/09/2017

Desc. 1:

Desc. 2:

Desc. 3:


BR0003

M2

454119812

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017





CFU/m3110Total Mould Count M34 12/09/2017





SYDNEY LABORATORY


217125114


Page 2 of 3502 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0003

M3

454119813

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR0004

M1

454119814

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017






CFU/m336Total Yeast Count M34 12/09/2017




SYDNEY LABORATORY


217125114


Page 3 of 3502 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0004

M2

454119815

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR0004

M3

454119816

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


Page 4 of 3502 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0005

M1

454119819

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR0005

M2

454119820

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


Page 5 of 3502 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0005

M3

454119821

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR0007

M1

454119823

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


Page 6 of 3502 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0007

M2

454119824

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR0007

M3

454119826

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


Page 7 of 3502 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0010

M1

454119827

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR0010

M2

454119828

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


Page 8 of 3502 8718 6888 Fax 02 8718 6899


Regents Park, NSW

P.O.#:

Sydney, NSW


SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0010

M3

454119829

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR0031

M1

454119834

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0031

M2

454119835

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR0031

M3

454119837

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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P.O.#:

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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1001

M1

454119838

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1001

M2

454119839

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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P.O.#:

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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1001

M3

454119840

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1002

M1

454119842

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1002

M2

454119843

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1002

M3

454119844

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1003

M1

454119846

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1003

M2

454119847

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1003

M3

454119848

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1005

M1

454119850

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1005

M2

454119851

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1005

M3

454119852

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1006

M1

454119855

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1006

M2

454119857

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1006

M3

454119859

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1007

M1

454119860

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017





CFU/m3<18Total Mould Count M34 12/09/2017





SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1007

M2

454119861

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1007

M3

454119862

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1008

M1

454119863

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1008

M2

454119865

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1008

M3

454119866

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1012

M1

454119871

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1012

M2

454119872

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1012

M3

454119873

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1030

M1

454119874

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1030

M2

454119875

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1030

M3

454119876

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1017

M1

454119877

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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P.O.#:

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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1017

M2

454119878

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1017

M3

454119879

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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P.O.#:

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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1019

M1

454119880

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1019

M2

454119881

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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P.O.#:

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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1019

M3

454119882

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1020

M1

454119883

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1020

M2

454119884

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1020

M3

454119885

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


217125114


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1027

M1

454119886

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1027

M2

454119887

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1027

M3

454119888

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1029

M1

454119889

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR1029

M2

454119890

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR1029

M3

454119891

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0016

M1

454119892

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:


BR0016

M2

454119893

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:


BR0016

M3

454119894

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:



M1

454119896

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:



M2

454119897

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:



M3

454119898

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:



M1

454119899

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017







Desc. 1:

Desc. 2:

Desc. 3:



M2

454119900

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017










SYDNEY LABORATORY


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SYD-51061437-0

Charlotte Bondoc

TO:

Team Administrator



None

Received From:

03/10/2017

Supersedes:

Received Date:

COA Date:


06/09/2017

Analytical Results

Desc. 1:

Desc. 2:

Desc. 3:



M3

454119901

NORMAL

17

Condition Rec'd:

Temp Rec'd (°C):

Sample Number:


6/09/2017











PHOTOGRAPHS


WSP October 2017

Page D-1

D1 PHOTOGRAPHS


WSP October 2017

Page D-2

GUIDELINES FOR REMEDIATING

BUILDING MATERIALS WITH MOULD

GROWTH


WSP October 2017

Page E-1

E1 GUIDELINES FOR REMEDIATING

BUILDING MATERIALS WITH MOULD

GROWTH TABLE 7.2 GUIDELINES FOR REMEDIATING BUILDING MATERIALS WITH MOULD GROWTH,

ADOPTED FROM TABLE 2: EPA (QUEENSLAND GOVERNMENT, 2008), MOULD REMEDIATION IN

SCHOOLS AND COMMERCIAL BUILDINGS, IAQ

Material or Furnishing Affected Clean-up Methods (see below)

Personal Protective Equipment

Containment

LARGE – Total Surface Area Affected Greater Than 30 (m2) or Potential for

Increased Occupant or Remediators Exposure During Remediation Estimated to be Significant

Books and papers 3 Half-face respirator with HEPA filter, disposable overalls, goggles/eye protection

Use polyethylene sheeting ceiling to floor around affected area with a slit entry and covering flap; maintain area under negative pressure with HEPA-filtered fan unit if practicable. Block supply and return air vents within containment area.

Carpet and backing 1,3,4 Half-face respirator with HEPA filter, disposable overalls, goggles/eye protection

As above

Hard surface, porous flooring (Linoleum, ceramic tile, vinyl)

1,3 Half-face respirator with HEPA filter, disposable overalls, goggles/eye protection

As above

Non-porous, hard surfaces (Plastics, metals)

1,2,3,4 Half-face respirator with HEPA filter, disposable overalls, goggles/eye protection

As above

Upholstered furniture & drapes 1,2,3 Half-face respirator with HEPA filter, disposable overalls, goggles/eye protection

As above

Upholstered furniture & drapes 1,3,4 Half-face respirator with HEPA filter, disposable overalls, goggles/eye protection

As above

Wallboard (Drywall and gypsum board)

3,4 Half-face respirator with HEPA filter, disposable overalls, goggles/eye protection

As above

Wood surfaces 1,2,3,4 Half-face respirator with HEPA filter, disposable overalls, goggles/eye protection

As above

CLEAN UP METHOD 1: WET VACUUM

Wet vacuums are vacuum cleaners designed to collect water. They can be used to remove water from floors, carpets, and

hard surfaces where water has accumulated. They should not be used to vacuum porous materials, such as gypsum

board. They should be used only when materials are still wet—wet vacuums may spread spores if sufficient liquid is not

present. The tanks, hoses, and attachments of these vacuums should be thoroughly cleaned and dried after use since

mould and mould spores may stick to the surfaces.

CLEAN UP METHOD 2: DAMP WIPE


WSP October 2017

Page E-2

Whether dead or alive, mould is allergenic, and some moulds may be toxic. Mould can generally be removed from non-

porous (hard) surfaces by wiping or scrubbing with water, or water and detergent. It is important to dry these surfaces

quickly and thoroughly to discourage further mould growth. Instructions for cleaning surfaces, as listed on product

labels, should always be read and followed. Porous materials that are wet and have mould growing on them may have to

be discarded. Since moulds will infiltrate porous substances and grow on or fill in empty spaces or crevices, the mould

can be difficult or impossible to remove completely.

CLEAN UP METHOD 3: HEPA VACUUM

HEPA (High-Efficiency Particulate Air) vacuums are recommended for final clean-up of remediation areas after

materials have been thoroughly dried and contaminated materials removed. HEPA vacuums are also recommended for

clean-up of dust that may have settled on surfaces outside the remediation area. Care must be taken to ensure that the

filter is properly seated in the vacuum so that all the air must pass through the filter. When changing the vacuum filter,

remediators should wear PPE to prevent exposure to the mould that has been captured. The filter and contents of the

HEPA vacuum must be disposed of in well-sealed plastic bags.

CLEAN UP METHOD 4: DISCARD – REMOVE DAMAGED MATERIALS AND SEAL IN PLASTIC BAGS

Building materials and furnishings that are contaminated with mould growth and are not salvageable should be double-

bagged using 6-mil polyethylene sheeting. These materials can then usually be discarded as general waste. It is

important to package mould-contaminated materials in sealed bags before removal from the containment area to

minimize the dispersion of mould spores throughout the building. Large items that have heavy mould growth should be

covered with polyethylene sheeting and sealed with duct tape before they are removed from the containment area

(Queensland Government, 2008)1.

BACTERIA AND YEAST DECONTAMINATION

The following methodology and equipment is recommended for the decontamination of affected areas:

Personal protective equipment to be worn when cleaning:

impervious Nitrile gloves – good quality disposable gloves will be adequate if changed frequently

safety glasses

half face P2 respirator compliant with AS 1716 (Standards Australia, February 2012)

type 5 and 6 disposable coveralls (optional)

A commercial grade High Efficacy Particulate air filter vacuum cleaner (i.e. HEPA filter vacuum) of Filter Class

H12 or higher (i.e. minimum of 99.5% efficiency for particulate of 0.3 microns size), available from good

industrial equipment hire agencies.

A plastic bucket, spray bottle and plastic funnel

Access to clean running water

Disposable Chux or similar style cleaning cloths

Disinfectant solution

Many disinfectants are available but it is recommended that sodium hypochlorite (bleach) be used as the most

suitable and effective domestically available biocide. Bleach is effective against a range of viruses and bacteria

when used at a concentration of between 0.5% and 1.0%, (available chlorine).

1 EPA (2008), Mould Remediation in Schools and Commercial Buildings, Indoor Air Quality (IAQ).


WSP October 2017

Page E-3

A suitable concentration of bleach can be prepared by obtaining household bleach by adding 200 ml of

household bleach (typically domestic bleach is a solution of 4% available chlorine) and adding this to 800 ml of

water so that the total volume is 1,000 ml making a one in five (1/5) solution at 0.8% available chlorine.

A few drops of non-ionic detergent (dishwashing liquid) may be added to increase the effectiveness of the

solution. This solution can be kept for up to one day. However, beyond this duration, it will start to lose its

strength and then need to be replaced.

The bleach solution should not be placed in direct sunlight. This will cause the premature degradation of the

solution.

Bleach solutions should be freshly prepared each day, if the decontamination process cannot be completed on

the same day.

The bleach safety data sheet (SDS) should be obtained and be read by the cleaner and kept on hand. The bleach

should be used in accordance with the SDS.

Do not mix bleach with acids as harmful chlorine gas will be produced.

The following methodology is recommended:

All surfaces and especially any visible “dust” should be first vacuumed using the commercial grade Class

H12 (or higher number) HEPA vacuum cleaner. It is important the dust is removed from all and this may

require a number of surfaces are clean of any matter to remove as much organic matter as possible so

surfaces will receive optimal disinfection by the bleach solution. Excessive organic surface matter or

soiling will diminish the effectiveness of the bleach when it is applied.

Once all surfaces including walls, crevices, shelving, floor, sink and cupboards in the room have been

vacuumed the 0.8% bleach solution should be freshly made in a small bucket and then decanted to a spray

bottle using the funnel, ready for immediate use.

Open the window to the store room to ensure the room is as well ventilated as possible.

Don all protective clothing listed.

All hard surfaces should be wiped down with the freshly made bleach solution using the following process:

The surface should be first sprayed in manageable stages of not more than one square meter at a time.

Do not spray all of the surfaces at once or excessive chlorine gas may be produced causing the cleaner

to be overcome.

The bleach solution should be allowed to remain on surfaces for not less than 30 seconds at a time and

then wiped up with the cleaning cloths until dry. The cloths will need to be rinsed and wrung out into a

bucket or sink between each wiping as soon as the cloth is saturated.

Excess biological material will affect the effectiveness of bleach so the cloth should be kept clean and

changed often as required so as not to spread contaminants.

After spraying and wiping all hard surfaces including walls and shelving, skirting boards, crevices,

hard flooring, repeat the spray and wipe process again to ensure each surface has been sprayed and

wiped at least twice to ensure no surface has been missed.

Allow the room to air out and dry after spraying and wiping each surface at least twice.

After the room has been aired and dried completely (do not shut the room up) the surfaces may then be

returned for use.

As a precaution only, instrument bags and cases may be wiped down using a mild detergent solution to

remove any visible soiling. This should then be followed by wiping the bags down with disposable

isopropyl alcohol wipes whilst wearing disposable Nitrile gloves. Bleach should not be used on metal

instruments or bags and cases as it may cause damage to the metal instruments (especially brass or

copper) and may cause discoloration to the bags and cases.

After decontamination is complete the protective clothing and discarded cleaning cloths should be

discarded into a sealable plastic bag.

The cleaner undertaking decontamination should ensure good personal hygiene practices are used including washing

hands and face with warm soapy water before eating, smoking or touching their face or clothing.

air quality (mould) investigation · 2019. 9. 19. ·...

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