Date:

Time:

Address:

Type of property:

Reference number:

Test requested by:

Audit sampler:

Qualification:

02/11/17

03:00pm

20 Sample Garden Rd, Shirley, Christchurch

Single Level, Residential House

01170008011

Property Manager

T. Inspector

Certificate in NIOSH 9111 swab sampling technique

Contaminated

2

Contents

Scope & General 03

Results at a glance 04

Lab Results 05

Executive Summary 06

Decontamination Recommendations 07

Room by Room Sample Pics 08

Additional Information 13

Glossary of Terms 14

Attachments 15

3

Scope & General

Statement Audit Ltd warrants that it-self and its inspector(s) have no interest, present or

contemplated, in the above named premises.

This report is subject to all the Terms and Conditions noted here, and on the

quote/invoice statement.

Intent of outcome The purpose of this detailed examination is to ascertain where, and to what levels

methamphetamine contamination may exist at the premises mentioned above.

Methodology On-site sampling methods executed by Audit will meet the NZS 2017:8510 standard,

that is to say the NIOSH sampling methods.

In general, other than the physical act of taking a sample swab, the process involves

taking considered, sporadic samples throughout the premises. The sample/swab area

is 100cm2 (10cm x 10cm), and as the intent is to ascertain where, and to what level

meth residue is present, the samples are taken from areas which, through experience

and training will provide a fair representation of any contamination found.

Lab- Composite extracts: When screening samples are Lab-Composites, these

samples can be later individually analysed to form part of the detailed assessment.

Where these samples have been collected from high yield surfaces/items, such as a

heat pump interior, another sample should be taken in the same room as the

surface/item.

Visual assessment and Background info: As part of a considered approach, a visual

inspection of the entire property is completed before the inspection, and any relevant

background information is gathered such as information on suspected meth use at the

property, or recent cleaning which may affect the outcome of results.

Limitations Due to the methods established above, if methamphetamine is found to be present

below acceptable levels, this is not a guarantee the premises is entirely clear of any

meth contamination above the limit in areas tested or not, as the sampling method is

sporadic as described above. Where extensive cleaning or decorating has occurred in

the premises, the presence of meth could be masked, and surface swabbing methods

may not detect any residues.

Limitations to understanding the rationale for previous sampling locations is expected

as Audit did not undertake the original screening assessment

Areas not tested Garage – the garage was not tested by the screening sampler. Audit did not gain

permission to sample this area. Further recommendations in Executive Summary.

General: The inspection and report have been undertaken using all care and due-diligence to

provide accurate, representative results. Limitations to specific detail in the report are

also limited by how Audit is instructed in respect to additional samples to be collected,

that is to say additional samples beyond the minimum requirements of the standard,

for example where multiple points of interest may be present in one room like forced air

heating/cooling units, heat transfer units, air-extractors and the like.

Other pre-cursor chemicals which are also tested for in the samples yielded such low

results as to not be an indicator of meth manufacture.

4

Results at a Glance

Toilet

Laundry

Kitchen

Lounge

Dining

Conservatory

HallwayBathroom

Bed: 1 Bed: 2

1. Dining Below l imi t – Open-plan to Lounge

2. Lounge CONTAMINATED! 5.76µg/100cm²

3. Conservatory Below l imi t

4. Hallway Below l imi t

5. Bed 1 Below l imi t

6. Bed 2 Below l imi t

7. Bathroom Below l imi t

8. Kitchen CONTAMINATED! 4.13µg/100cm²

9. Toilet Below l imi t

10. Laundry Below l imi t

5

Lab Results

Sample Room Cont. Level (µg/100cm²) Result

Quick Comment

1. Dining 0.41 Pass Open-plan to lounge

2. Lounge 5.76 Fail

3. Conservatory 0.83 Pass Over half way to limit

4. Hallway 0.22 Pass

5. Bed 1 0.89 Pass Over half way to limit

6. Bed 2 0.43 Pass

7. Bathroom 0.98 Pass Over half way to limit

8. Kitchen 0.56 Pass Fail in same room

9. Toilet 0.43 Pass

10. Laundry 0.57 Pass

11. Kitchen (2) 4.13 Fail

12. Field Blank 0.02 Negative

Note

Having a Pass and a Fail result in one room is a normal occurrence, particularly where the level of contamination above the limit

is low. This is due to the inconsistent nature of meth contamination, and is the reason why the standard calls for set minimums of

samples to be taken.

6

Executive Summary

1.1 Subject

1.1.1 This section of the report is a summary of the entire inspection report and may not include all findings. It is intended to give a

succinct, clear over-view of the level and location of any Methamphetamine contamination.

1.1.2 The inspection and report has been subject to the following access restrictions.

Rear half of garage (sleep-out) The stand alone garage on-site has a partition wall, which access in gained through a

slider door on the side of the garage. The inspector did not have a key for access

1.2 Methods

1.2.1 This inspection is a non-invasive visual and swab taking inspection of the property as set out in the scope and general section of

this report.

1.2.2 This inspection has been carried out in accordance with NZS 8510:2015, other than aspects which have been noted in this

inspection report.

1.2.3 Photos, measurements, and written notations were taken on-site.

1.3 Findings

1.3.1 Background Information

From discussion with the PM

Meth use in the property had been suspected

Meth manufacture had not been suspected

A failed lab-composite from a screening assessment was provided. Showing a maximum theoretical level of

11.01µg/100cm² for one sample

Audit was made aware that some general interior cleaning had been completed at the property upon the tenants

vacating

1.3.2 Visual Assessment

A visual assessment of the section and dwelling yielded no obvious signs of meth use or manufacture. It should be noted that

although the dwelling and section were free of rubbish, the rear section of garage (sleep-out) was entirely filled with personal

belongings and rubbish.

The layout of the dwelling differed slightly from the original floor plan in screening assessment, all previous sampling areas were located

The screening assessor treated the Lounge and Dining rooms as two separate rooms, under the 8510 standard a room

(high use area) is defined as being separated by a doorway. As these rooms are open-plan, they should be treated as a

single area when considering decontamination plan.

1.3.3 Extracted Lab-composites and on-site discrete samples

Audit performed one field blank which returned a negative result

2 out of 11 samples returned with a result above the limit of 1.5µg/100cm²

3 out of the remaining 6 results were over half way to the limit

The Lounge has a result above the limit and requires decontamination

The Kitchen has a result above the limit and requires decontamination

1.4 Conclusion

It would appear from considering the information, the contamination in the dwelling is, with a high degree of certainty, exclusively from the use of meth and not manufacture, although manufacture can never be completely discounted.

The Dining room should be considered contaminated as it is open-plan to the Lounge.

Some areas will require de-contamination - Details under Decontamination Recommendations, which includes further

recommendations we consider important.

7

Decontamination Recommendations

2.1 General and Health and Safety

2.1.1 This section of the report is to serve as a recommendation only to the final decontamination scope of works which will be

determined by the decontamination contractor.

2.1.2 Recommendations in this report are based on the full requirements of the NZS8510:2017 standard.

2.1.3 As it has been determined with a high degree of certainty that manufacture has not occurred in the premise, and as the failed

results are comparatively low, harmful effects from other chemicals is very low. As such, standard PPE and precaution when

decontaminating should be worn i.e. protective clothing, gloves, eye and respiratory protection.

2.1.4 Asbestos is likely present in a property of this era, any cleaning contractor should be informed, and an agreement between all

parties as to who is responsible for identifying or assuming its location should be made. Check Additional Info page.

2.2 Methods

2.2.1 Cleaning methods and chemicals should comply with the 8510 standard

2.2.2 No results or surfaces are an immediate concern as to the ability of cleaning methods to safely decontaminate them to below the

acceptable limits

2.2.3 Areas not being decontaminated should be closed-off and sealed from contaminated areas

2.2.4 Care should be taken during decontamination to minimize the possibility of cross-contamination, as such, we recommend that the

cleaning contractors only access the kitchen and Lounge/Dining through the rear door located in the Laundry

2.2.5 When cleaning a surface, it is mandatory that the entire surface is cleaned, not spot-cleaning

2.2.6 Removal and disposal of any cleaning waste or removed items shall be in accordance with the 8510 standard

2.2.7 Where a surface is not conducive to being cleaned (like stippled ceilings), sealing may be necessary by the use of other building

materials or oil-based/epoxy coatings as per the 8510 standard

2.3 Rooms and Items for decontamination

2.3.1 Kitchen

The Kitchen had two samples taken, sample 8 passed, while sample 11 failed. This is a common occurrence and is

indicative that the contamination is not widespread, and therefore an indicator that Meth was more likely not cooked in

the room.

No soft furnishing to be removed

Wash ceiling, walls and floor as per 8510 standard

All items in the room should be cleaned e.eg. benches, electrical fittings, sills and the like

Suggest cleaning inside pantry as a precaution

The extractor vent should be removed and cleaned, or replaced if deemed to be un-accessible for cleaning

2.3.2 Lounge

Curtains should be removed and disposed of as they are in contact/very close proximity to the surface which tested

above the limit.

The 8510 standard requires carpet in contaminated areas to be removed, this is our recommendation, however as the

levels of contamination are low, the decontamination contractor may look at cleaning if a method is deemed adequate

Wash ceiling, walls and floor as per 8510 standard

All items in the room should be cleaned e.g. benches, electrical fittings, sills and the like

2.3.3 Dining Room (open-plan to lounge)

As per the previous observations, notes in this report, we recommend that the dining room is included in the scope of

works for cleaning asper Lounge recommendations.

2.4 Further Recommendations

2.4.1 Once decontamination is complete we recommend retesting not only the previously contaminated surfaces, but also any areas in

the dwelling where access was gained be decontamination workers

2.4.2 We recommend that both areas in the garage are also tested

2.4.3 It is recommended to get at least two, if possible three quotes from de-contamination contractors before making a decision.

8

Site Site

20 Sample Garden Rd

Shirley

Christchurch

01 Dining Room

Sample One: Pass

ID: 0117 0008 011 001

Surface – Smooth Painted wall

Area – High Use

Rationale – Most likely to capture smoke transfer

from one room to another

ATTENTION:

Although this surface has passed, it is in the same

room as a failed result on another surface (Lounge –

Sample Two).

The Dining room is open-plan to the lounge; as such

they are considered one room under the 8510

Standard.

Refer to 2.3.3 and ‘Results at a Glance’ diagram

02 Lounge

Sample Two: Fail ID: 0117 0008 011 002

Surface – Painted Window Sill

Area – High Use

Rationale – Most likely to capture smoke transfer

from one room to another

9

03 Conservatory

Sample Three: Pass

ID: 0117 0008 011 003

Surface – Smooth Painted wall

Area – High Use

Rationale – Most likely to capture escaping smoke

vapor, possible window to smoke near

04 Hallway

Sample Four: Pass

ID: 0117 0008 011 004

Surface – Smooth Painted wall

Area – High Use

Rationale – Most likely to capture escaping smoke

vapor, possible window to smoke near

05 Bed 1

Sample Five: Pass

ID: 0117 0008 011 005

Surface – Painted window sill (cracking paint)

Area – High Use

Rationale – Most likely to capture escaping smoke

vapor, possible window to smoke near

10

06 Bed 2

Sample Six:Pass

ID: 0117 0008 011 006

Surface – Painted window sill

Area – High Use

Rationale – Most likely to capture escaping smoke

vapor, possible window to smoke near

07 Bathroom

Sample Seven:Pass

ID: 0117 0008 011 007

Surface – Smooth Painted wall

Area – High Use

Rationale – Most likely to capture escaping smoke

vapor, possible window to smoke near

08 Kitchen

Sample Eight: Pass

ID: 0117 0008 011 008

Surface – Smooth Painted wall

Area – High Use

Rationale – Most likely to capture escaping smoke

vapor, possible window to smoke near

ATTENTION:

Although this surface has passed, it is still in the

same room as failed result on another surface

(Kitchen – Sample Eleven)

Refer to 2.3.1

11

09 Toilet

Sample Nine: Pass

ID: 0117 0008 011 009

Surface – Smooth Painted wall

Area – High Use

Rationale – Most likely to capture escaping smoke

vapor, possible window to smoke near

10 Laundry

Sample Ten: Pass

ID: 0117 0008 011 010

Surface – Smooth Painted wall

Area – High Use

Rationale – Most likely to capture escaping smoke

vapor, possible window to smoke near

11 Kitchen (2)

Sample Eleven: Fail ID: 0117 0008 011 011

Surface – Smooth Painted hardboard wall

Area – High Use

Rationale

Try to establish if meth manufacture has

occurred over heat source

Visible signs of grease on wall, so missed

by recent cleaning

12

12 Field Blank

Sample Twelve: Pass

ID: 0117 0008 011 012

Surface – Plastic Bag - a blank test is conducted at

the end of sampling, using the same gloves as used

for taking previous swabs, on the bag the kit was

transported into the house with.

Rationale – Using the same gloves as used for swabs

at the end of sampling, on a foreign object brought

into the house is proof no cross-contamination has

occurred between samples, and no contamination

has been brought into the dwelling.

13

Additional Information

3.1 Asbestos

- Any building built before 1 January 2000 is likely to contain asbestos. However, it is still possible for more recently-constructed

buildings to contain asbestos.

- Once asbestos-containing materials (ACMs) are disturbed, tiny asbestos fibers are released. These fibers are hazardous, and if

breathed in can cause lung disease and cancer. If you don’t take the right precautions to protect yourself, you’re risking your life

and your livelihood.

- PCUB’s involved in asbestos-related work (including cleaning) are required to take certain precautions when undertaking the

work. Guidance is provided for several trades at https://worksafe.govt.nz/topic-and-industry/asbestos/working-with-

asbestos/asbestos-quick-guides-for-tradespeople/

3.2 Decontamination Contractors

- Audit has a policy not to recommend any one de-contamination/remediation company, below is a short list of issues to consider

before engaging a particular contractor

- NOTE: This advice is not exhaustive and is intended as guidance only, not specific advice

Ensure supervisors/workers have adequate experience and training

How and who will undertake the work, third party workers? Adequate supervision by experienced staff?

Prior planning and work-methodologies documented and available

Are they responsible with waste disposal? Should be part of work/health and safety polices

Do they have appropriate and adequate insurance cover?

Make a prior agreement to the acceptable level of post de-contamination levels i.e. below the MOH guidelines.

Ask what the procedure and costs, if any, are if decontamination is unsuccessful – This is important, as it is not

uncommon for a property to require further cleaning after a first attempt. Many contractors will do preliminary tests

themselves using self-test kits as part of their own quality control systems.

3.3 Additional Site Information

- Other than the non-intentional information potentially captured in site pictures, which is covered in our terms and conditions,

there is other, intentionally gathered information (including additional pictures) which is not presented as part of this report. The

additional information is in some cases is unplanned, such as duplicate pictures, some information is gathered for future

reference in-case of a failed result, such as room measurements, and finally other information is gathered as proof of due

diligence and is superfluous to the purpose of this report, such as pics of locations of services.

3.4 Additional Information Attached to this Report

- IMPORTANT: The documents listed below, and attached to this report are intended to form part of this report, and as such

should be read in conjunction with this report.

1. Screening Inspection Report – Author: ABC Meth Testers Ltd - (5 pages)

2. Lab analysis results from Screening inspection – Author: Analytica Laboratories – (2 pages)

3. Lab analysis results from Detailed inspection – Author: Analytica Laboratories – (3 pages)

3.5 Helpful Paces for More Information

auditinspections.co.nz

worksafe.govt.nz

health.govt.nz

iag.co.nz/News/Pages/IAG-provides-home-insurance-guide-on-meth-contamination.aspx

drughelp.org.nz

14

Glossary of Terms

Asbestos There are 6 types of Asbestos; chrysotile, amosite, crocidolite, tremolite, anthophyllite

and actinolite. Asbestos is a natural fibrous mineral (rock) that was commonly mined

from the ground. It was mixed with a wide range of different materials to provide

strength, fire proofing, insulation and many more properties.

Composite Sample A composite sample is where two (2) or more, up to a maximum of five (5), individual

samples are combined into one vile, to form one sample for analysis in the lab

Discrete Sample A single sample from one surface (100cm²), kept individual and analyzed in the lab to

determine the amount of meth present (µg/100cm²)

Extracted Lab-composite A single sample from one surface (100cm²) previously combined in the lab with up to

10 other discrete wipes, accessed at a later date to individually analyze

Fail Any result that indicates, or likely indicates contamination above the limit set in the

8510 standard

Field Blank A single swab taken off a foreign object brought into the dwelling by the inspector.

These are required by the standard at a ratio of 1:20, and help substantiate that not

cross-contamination has occurred

High-use area An area in a property that can be easily accessed and is regularly used by adults and

children

Lab-composite A group of up to 10 individual samples combined together in the Lab. Then analysed

using one lab test

Limited-use area An area that is likely to be accessed only by adults and for short periods of time. This

includes crawl spaces and wall cavities not used as duct runs that are unlikely to be

renovated.

Max. theoretical level Where any composite result is issued, that result is multiplied by the total number of

individual samples in the composite to establish what the contamination level would be

had it all originated from only one of the samples

Methamphetamine Methamphetamine is a potent central nervous system stimulant that is mainly used as a

recreational drug and less commonly as a second-line treatment for attention deficit

hyperactivity disorder and obesity.

MOH Ministry of Health

Pass Any result that contains some level of meth contamination, but does not exceed the

limit

PCUB Person or Company Undertaking a Business

15

PM Property Manager

Standard (8510) The NZS8510:2017 Testing and decontamination of methamphetamine-contaminated

properties. Published by Standards New Zealand – This document provides guidance

to the industry on testing and decontaminating properties. For more information on this

standard visit https://auditinspections.co.nz/learning-center/meth/