Demolition of the Centennial Elementary School · Dillon onsulting Limited (Dillon) was commissioned by Halifax Regional Municipality (HRM), to review previous hazardous materials

P.O. Box 1749, Halifax, NS B3J 3A5, Tel: 902-490-6455 Fax: 902-490-6425

E-mail: [email protected] Web Site: www.halifax.ca

FINANCE AND ICT, PROCUREMENT Karen Rundle – Contract Administrator

Tender# 17-162 June 6, 2017

Tender For

Demolition of the Centennial Elementary School

ADDENDUM # 2

Please note: The following change to T17-162 – Demolition of Centennial Elementary School – shall

form part of the “Tender Documents”.

GENERAL

The building will be open for review on Friday June 9th from 8:30 am to 12:30 pm. Only those bidders present at the mandatory site meeting are permitted to attend. Interested parties are to confirm by 3:30 pm Thursday June 8th to Erin MacDonald ([email protected]), Procurement, that they will be attending the open house.

ALL OTHER SPECIFICATIONS, TERMS AND CONDITIONS REMAIN UNCHANGED. Jane Pryor Manager of Procurement

http://www.halifax.ca/

mailto:[email protected]?subject=Site%20Review%20-%20Centennial%20School

P.O. Box 1749, Halifax, NS B3J 3A5, Tel: 902-490-6494 Fax: 902-490-4206 E-mail: [email protected] Web Site: www.halifax.ca

FINANCE AND ASSET MANAGEMENT Karen Rundle - Contract Administrator

Tender # 17-162 DATE: June 2, 2017

Tender 17-162

ADDENDUM # 1

Please note: The following changes to T17-162- Demolition of Centennial Elementary School - shall form part of the “Tender Documents”.

ATTACHED.

Appendix C – Supplementary Hazardous Material Survey (2017) – Dillon Consulting

ALL OTHER SPECIFICATIONS, TERMS AND CONDITIONS REMAIN UNCHANGED.

Jane Pryor Manager of Procurement

mailto:[email protected]

http://www.halifax.ca/

HALIFAX REGIONAL MUNICIPALITY

Supplemental Pre-Demolition Hazardous Materials Survey (Draft Report) Former Centennial Elementary School Demolition

April 2017 – 17-5028

Halifax Regional Municipality Supplemental Pre-Demolition Hazardous Materials Survey (Draft Report) - Former Centennial Elementary School Demolition April 2017 – 17-5028

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Table of Contents

1.0 Introduction 1

1.1 Previous Reports ................................................................................................................. 1

2.0 Hazardous Materials 1

2.1 Previously Identified Hazardous Materials (ALL-TECH, 2016)................................................ 1

2.2 Additional Sampling ............................................................................................................. 2

2.2.1 Asbestos-Containing Materials ............................................................................................ 2

2.2.2 PCB-Containing Light Ballasts ............................................................................................... 2

2.2.3 Mercury-Containing Equipment ........................................................................................... 3

2.2.4 Radioactive Materials/Smoke Detector ................................................................................ 3

2.2.5 Urea Formaldehyde Foam Insulation (UFFI) ......................................................................... 3

2.2.6 Ozone Depleting Substances (ODS) ...................................................................................... 3

2.2.7 Mould ................................................................................................................................. 3

3.0 Disclaimer 4

Appendices

A Analytical Certificates

References


1

1.0 Introduction

Dillon Consulting Limited (Dillon) was commissioned by Halifax Regional Municipality (HRM), to review

previous hazardous materials surveys and complete additional pre-demolition hazardous materials

sampling as necessary at the former Centennial Elementary School located at 2A George Street in Lower

Sackville, NS (“the site”). The work is being completed as part of demolition planning for the building.

The purpose of this hazardous materials survey was to identify the presence/absence of designated

substances (e.g., asbestos containing materials, polychlorinated biphenyls, lead, mercury, etc.) requiring

special attention prior to or during demolition of the building that have not been previously surveyed.

Centennial Elementary School was reportedly constructed in 1968. An addition was added to the

building around 1969-1970. The building ceased operations as a school in June 2014. The building is

scheduled for demolition in 2017. The building is approximately 1,600 m2 and consists of a one-storey

brick, wood and steel-framed structure on a poured concrete foundation (no basement).

1.1 Previous Reports

The following historical reports were reviewed as part of this assignment:

• ALL-TECH Environmental Services Limited, Phase I Environmental Site Assessment, Sackville

Centennial Elementary School, 2A George Street, Lower Sackville, Nova Scotia, Submitted to Halifax

Regional School Board, June 2014.

• ALL-TECH Environmental Services Limited, Phase II Environmental Site Assessment, Sackville


Regional School Board, March 2016.

• ALL-TECH Environmental Services Limited, Limited Hazardous Materials Site Assessment, Sackville

Centennial School, 2 George Street, Lower Sackville, Nova Scotia, Submitted to Halifax Regional

School Board, January 2016 [Appendix C of the Phase II ESA Report].

• ALL-TECH Environmental Services Limited, Ground Water Assessment – Addendum to Phase II ESA,


Regional School Board, July 2016.

2.0 Hazardous Materials

2.1 Previously Identified Hazardous Materials (ALL-TECH, 2016)

The 2016 Limited Hazardous Materials Site Assessment (ALL-TECH) noted the presence of asbestos-

containing materials in and outside the building, including, but not limited to, the following:

• Piping insulation (hangars and fittings) in various areas of the school;

• Lighting heat shields in various areas of the school;


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• Drywall joint compound in various areas of the school;

• Vinyl floor tiles of various colours throughout the building;

• Black floor tile mastic throughout the building; and,

• Grey caulking on the building exterior.

ALL-TECH also collected and analyzed samples of painted substrates for lead analysis. Results of the

sampling indicated that lead concentrations were below the Nova Scotia Guidelines for the Disposal of

Contaminated Solids in Landfills. Painted materials can be disposed of at an approved Construction and

Demolition Landfill.

2.2 Additional Sampling

Dillon reviewed the Limited Hazardous Materials Survey completed by ALL-TECH and completed a

walkthrough of the building to identify building materials (if any) that had not previously been analyzed.

2.2.1 Asbestos-Containing Materials

Two samples were collected and submitted to Maxxam Analytics for

asbestos analysis, including chalkboards that had previously not been

sampled and insulating paper surrounding a duct located in the ceiling in

the hallway (Photo 1).

The results of asbestos analysis are presented in Table 1. Asbestos was not

detected in either sample.

Table 1: Results of Asbestos Analysis

Sample ID Sample Location Description Asbestos (%)

AS-01 (Chalkboard) Classroom #8 Chalkboard material <0.25

AS-02 (Duct Paper) Hallway Ceiling Insulating paper surrounding duct in

ceiling in hallway <0.25

Note: Code of Practice for the Removal of Friable Asbestos-Containing Materials guideline for material containing asbestos is at least 0.5% by weight

2.2.2 PCB-Containing Light Ballasts

Light ballasts were observed throughout the building. Select fluorescent

lighting inside the Centennial Elementary School was visually checked

for the presence of PCB-containing ballasts. The serial numbers of the

ballasts were compared to published material on PCB-containing light

ballasts. PCB-containing ballasts with the serial number 17A128N

(Canadian General Electric) were observed in the school (Photo 2).

Photo 1: Insulating paper surrounding duct in ceiling

Photo 2: PCB-containing light ballasts observed in the hallway


3

Since all ballasts were not checked, the ballast shown in Photo 2 cannot be considered representative of

all ballasts in the building. As such, prior to demolition, the contractor will be responsible for checking

light ballasts to confirm the presence or absence of PCBs. Ballasts suspected of containing PCBs will

require appropriate management during demolition, documentation and disposal.

Light bulbs and tubes must go to a recycler.

2.2.3 Mercury-Containing Equipment

Mercury-containing wall mounted thermostats were observed throughout the

interior of the building (Photo 3). These devices should be properly packaged

and disposed of to prevent uncontrolled release of mercury during demolition

activities. Mercury vials found inside the switches can be recycled.

Mercury vapour is present in all fluorescent light tubes. Workers should avoid

direct skin contact with mercury. Lighting tubes should be handled carefully to

ensure that they are not broken, and then carefully packaged in suitable boxes

for appropriate disposal.

2.2.4 Radioactive Materials/Smoke Detector

Smoke detectors often contain the radioactive element americium 241. If present these units should be

removed before demolition and disposed of accordingly.

2.2.5 Urea Formaldehyde Foam Insulation (UFFI)

There was no suspected urea formaldehyde foam noted during the survey. If encountered during

demolition, UFFI should be managed appropriately by workers and disposed of accordingly.

2.2.6 Ozone Depleting Substances (ODS)

Refrigerators, freezers, ice machines, cold rooms, roof-top HVAC units, and air conditioning units could

contain ozone depleting substances (ODSs). These units were not encountered during the site visit as

they have likely been previously removed from the building. If these units are present on site, these

refrigerant gases should be drained and recovered by a licenced contractor.

2.2.7 Mould

The presence of water from leaks can lead to the growth of mould inside buildings. Visible mould was

not observed during the site visit; however, it may be present inside the building. During demolition of

areas containing mould, workers shall comply with the regulations in the Nova Scotia Occupational

Health and Safety Act.

Photo 3: Mercury filled thermostats


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3.0 Disclaimer

Dillon Consulting Limited (Dillon) has used the degree of care and skill ordinarily exercised under similar

circumstances at the time the work was performed by reputable members of the environmental

consulting profession practicing in Canada. Dillon assumes no responsibility for conditions it was not

authorized to investigate or which were beyond its scope of work. There is no warranty expressed or

implied by Dillon that the work will discover all potential contamination since it may not be possible,

even with exhaustive sampling, testing and analysis, to document all potential contamination on the

site.

This report was prepared by Dillon for the sole benefit of Halifax Regional Municipality. The material in

the report reflects Dillon's best judgment in light of the information available to Dillon at the time of

preparation. Any use which a third party (i.e. a party other than Halifax Regional Municipality) makes of

this report, or any reliance on or decisions made based on it, are the responsibilities of such third

parties. Dillon accepts no responsibility for damages, if any, suffered by any third party as a result of

decisions made or actions based on this report.

Halifax Regional Municipality Supplemental Pre-Demolition Hazardous Materials Survey (Draft Report) April 2017 – 17-5028

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DEMOLITION OF CENTENNIAL

APRIL 2017

ELEMENTARY SCHOOL, LOWER SACKVILLE, NS

SAMPLE LOCATION PLAN

17-5028

1

Appendix A

Halifax Regional Municipality Supplemental Pre-Demolition Hazardous Materials Survey (Draft Report) April 2017 – 17-5028

A - 1

A Analytical Certificates

MAXXAM JOB #: B745147Received: 2017/03/06, 16:56

CERTIFICATE OF ANALYSIS

Your C.O.C. #: D 17360

Report Date: 2017/03/14Report #: R4391522

Version: 1 - Final

Attention:Rebecca Appleton

Dillon Consulting Limited137 Chain Lake DrSuite 100Halifax , NSB3S 1B3

Sample Matrix: SOLID# Samples Received: 2

ReferenceLaboratory MethodDateAnalyzed

DateExtractedQuantityAnalyses

2017/03/14N/A2Asbestos BULK (RDL<0.25%) (Sub fr Bed.) (1)

Maxxam Analytics' laboratories are accredited to ISO/IEC 17025:2005 for specific parameters on scopes of accreditation. Unless otherwise noted,procedures used by Maxxam are based upon recognized Provincial, Federal or US method compendia such as CCME, MDDELCC, EPA, APHA.

All work recorded herein has been done in accordance with procedures and practices ordinarily exercised by professionals in Maxxam’s profession usingaccepted testing methodologies, quality assurance and quality control procedures (except where otherwise agreed by the client and Maxxam in writing). Alldata is in statistical control and has met quality control and method performance criteria unless otherwise noted. All method blanks are reported: unlessindicated otherwise, associated sample data are not blank corrected.

Maxxam Analytics' liability is limited to the actual cost of the requested analyses, unless otherwise agreed in writing. There is no other warranty expressedor implied. Maxxam has been retained to provide analysis of samples provided by the Client using the testing methodology referenced in this report.Interpretation and use of test results are the sole responsibility of the Client and are not within the scope of services provided by Maxxam, unless otherwiseagreed in writing.

Solid sample results, except biota, are based on dry weight unless otherwise indicated. Organic analyses are not recovery corrected except for isotopedilution methods.Results relate to samples tested.This Certificate shall not be reproduced except in full, without the written approval of the laboratory.

Remarks:

Reference Method suffix “m” indicates test methods incorporate validated modifications from specific reference methods to improve performance.

* RPDs calculated using raw data. The rounding of final results may result in the apparent difference.

(1) This test was performed by Bedford to BV (Georgia)

Page 1 of 5

Maxxam Analytics International Corporation o/a Maxxam Analytics 200 Bluewater Rd, Suite 105, Bedford, Nova Scotia Canada B4B 1G9 Tel: 902-420-0203 Toll-free: 800-565-7227 Fax: 902-420-8612 www.maxxamanalytics.com

MAXXAM JOB #: B745147Received: 2017/03/06, 16:56

CERTIFICATE OF ANALYSIS

Your C.O.C. #: D 17360

Report Date: 2017/03/14Report #: R4391522

Version: 1 - Final

Attention:Rebecca Appleton

Dillon Consulting Limited137 Chain Lake DrSuite 100Halifax , NSB3S 1B3

Encryption Key

Please direct all questions regarding this Certificate of Analysis to your Project Manager.Heather Macumber, Project ManagerEmail: [email protected]# (902)420-0203 Ext:226==================================================================== This report has been generated and distributed using a secure automated process.Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5.10.2 of ISO/IEC 17025:2005(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page.

Total Cover Pages : 2Page 2 of 5


Maxxam Job #: B745147Report Date: 2017/03/14

Dillon Consulting Limited

RESULTS OF ANALYSES OF SOLID

QC Batch = Quality Control Batch

4891432ATTACHEDATTACHEDN/ASubcontract Parameter

Subcontracted Analysis

QC BatchAS-02 (DUCT

PAPER)AS-01 (CHALKBOARD)UNITS

D 17360D 17360COC Number

2017/03/022017/03/02Sampling Date

DZX722DZX721Maxxam ID

Page 3 of 5




GENERAL COMMENTS

Each temperature is the average of up to three cooler temperatures taken at receipt

16.3°CPackage 1

Results relate only to the items tested.

Page 4 of 5




VALIDATION SIGNATURE PAGE

The analytical data and all QC contained in this report were reviewed and validated by the following individual(s).

Eric Dearman, Scientific Specialist

Maxxam has procedures in place to guard against improper use of the electronic signature and have the required "signatories", as per section 5.10.2 of ISO/IEC17025:2005(E), signing the reports. For Service Group specific validation please refer to the Validation Signature Page.

Page 5 of 5


Bureau Veritas North America, Inc. Health, Safety, and Environmental Services 3380 Chastain Meadows Parkway, Suite 300 Kennesaw, GA 30144

Main: (770) 499-7701 Fax: (770) 499-7511 www.us.bureauveritas.com

March 14, 2017

MAXXAM ANALYTICS

Heather Macumber

Dear Heather Macumber:

Reference JOB# B745147

Bureau Veritas Work Order A1703090

200 Bluewater Road

Bedford, NS B4B 1G9

Bureau Veritas North America, Inc. received 2 samples on March 08, 2017 for the analyses presented in the following report.

The results apply only to the samples analyzed in this project. Please note that any unused portion of the samples will be discarded after a sixty-day holding period, unless you have requested otherwise.

This material is confidential and is intended solely for the person to whom it is addressed. If this is received in error, please contact the number provided below.

We appreciate the opportunity to assist you. If you have any questions concerning the report, please contact the analyst whose name appears on the report or myself at (770) 499-7701.

Sincerely,

Kuntal Parikh

Senior MicroscopistElectronic signature authorized through password protection

BClientSvcSubContrcc:

1 of 6

http://www.us.bureauveritas.com

14-Mar-17Date:CASE NARRATIVE

Project: JOB# B745147

CLIENT: MAXXAM ANALYTICS

Work Order No A1703090

ANALYTICAL METHOD FOR ASBESTOS IN BULK SAMPLES USING POLARIZEDLIGHT MICROSCOPY (PLM) USING POINT COUNTING

The results of this report relate only to the samples listed in the body of this report.

Unless otherwise noted below, the following statements apply: 1) all samples were received inacceptable condition, 2) all quality control results associated with this sample set were withinacceptable limits and/or do not adversely affect the reported results, and 3) the industrial hygiene resultshave not been blank corrected unless otherwise noted.

A representative portion of the bulk sample is transferred to a small dish. The sample is examinedunder a stereomicroscope at 10x to 40x magnification to note the physical characteristics of the sample.

A small subsample is extracted and mounted on a microscope slide using a refractive index liquid(Cargille Series E: HD [high dispersion]). The subsample is analyzed by polarized light microscopysupplemented by dispersion staining. Percentage of asbestos is determined using point counting on fibers >3:1 aspect ratio. For point counting, a minimum of four slides are prepared, with 100 non-empty points counted on each of the slides. Bulk samples analyzed by New York State methods followstratified point counting methods or Method 198.6 for PLM non-organically bound materials (NYDOHLab Code -11645). Bulk samples analyzed to meet the requirements of the State of California utilizecurrent EPA methods except 1000 points are counted instead of 400 points. All points counted use thecenter cross-hair reticle procedure. The percentage of asbestos points (identified by central stopdispersion staining) divided by the total points counted yields the percent asbestos. Final results arereported as type of asbestos and percent asbestos.

The Kennesaw, Georgia lab is accredited by NVLAP –Lab Code 101125-0.

References

McCrone, Walter C. 1980. The Asbestos Particle Atlas. Ann Arbor, MI: Ann Arbor SciencePublishers, Inc.

United States Environmental Protection Agency. Environmental Monitoring Systems Laboratory.1982. "Interim Method for the Determination of Asbestos in Bulk Insulation Samples." EPA-600/M4-82-020. Washington: GPO, December.

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Project: JOB# B745147

CLIENT: MAXXAM ANALYTICS

Work Order No A1703090

Method for the Determination of Asbestos in Bulk Building Materials. EPA-600/R-93/116, July 1993 (PLM)

New York ELAP Method 198.1

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Work Order No.: A1703090

Client Reference: JOB# B745147

Method Referenc Asbestos Point Counting by EPA/600/R-93/116

Sample Type: Bulk

Date Received: 3/8/2017

3/14/2017 11:16:19 AMReport Date:

ANALYTICAL RESULTSCLIENT: MAXXAM ANALYTICS

Date: 14-Mar-17

Lab ID Client Sample ID Analyst Date AnalyzedDate Sampled

03/14/2017SH001A DZX721-01R\AS-01 (CHALKBOARD) 03/02/2017

Sample MorphologyLayer POB No. Points Counted Identification %Count(1) 25 Non-homogeneous Non-friable

Green/Yellow Paint400

0 < 0.25

Chrysotile 0

Amosite 0

Crocidolite 0

Anthophyllite 0

Actinolite 0

Tremolite 0

< 0.25

< 0.25

< 0.25

< 0.25

< 0.25

< 0.25

TOTALS

(2) 75 Non-homogeneous FriableBrown/Black Cardboard

400

0 < 0.25

Chrysotile 0

Amosite 0

Crocidolite 0

Anthophyllite 0

Actinolite 0

Tremolite 0

< 0.25

< 0.25

< 0.25

< 0.25

< 0.25

< 0.25

TOTALS

4 of 6

Work Order No.: A1703090

Client Reference: JOB# B745147

Method Referenc Asbestos Point Counting by EPA/600/R-93/116

Sample Type: Bulk

Date Received: 3/8/2017

3/14/2017 11:16:19 AMReport Date:

ANALYTICAL RESULTSCLIENT: MAXXAM ANALYTICS

Date: 14-Mar-17

Lab ID Client Sample ID Analyst Date AnalyzedDate Sampled

03/14/2017SH002A DZX722-01R\AS-02 (DUCT PAPER) 03/02/2017

Sample MorphologyLayer POB No. Points Counted Identification %Count(1)

Foil not tested.

5 Homogeneous Non-friable Tan Mastic 400

0 < 0.25

Chrysotile 0

Amosite 0

Crocidolite 0

Anthophyllite 0

Actinolite 0

Tremolite 0

< 0.25

< 0.25

< 0.25

< 0.25

< 0.25

< 0.25

TOTALS

(2) 43 Homogeneous Non-friable Brown Paper 400

0 < 0.25

Chrysotile 0

Amosite 0

Crocidolite 0

Anthophyllite 0

Actinolite 0

Tremolite 0

< 0.25

< 0.25

< 0.25

< 0.25

< 0.25

< 0.25

TOTALS

(3) 42 Homogeneous Non-friable Black Glue 400

0 < 0.25

Chrysotile 0

Amosite 0

Crocidolite 0

Anthophyllite 0

Actinolite 0

Tremolite 0

< 0.25

< 0.25

< 0.25

< 0.25

< 0.25

< 0.25

TOTALS

Analyst(s) Name/Date: 3/14/2017

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References ALL-TECH Environmental Services Limited, Phase I Environmental Site Assessment, Sackville Centennial Elementary School, 2A George Street, Lower Sackville, Nova Scotia, Submitted to Halifax Regional School Board, June 2014. ALL-TECH Environmental Services Limited, Phase II Environmental Site Assessment, Sackville Centennial Elementary School, 2A George Street, Lower Sackville, Nova Scotia, Submitted to Halifax Regional School Board, March 2016. ALL-TECH Environmental Services Limited, Limited Hazardous Materials Site Assessment, Sackville Centennial School, 2 George Street, Lower Sackville, Nova Scotia, Submitted to Halifax Regional School Board, January 2016 [Appendix C of the Phase II ESA Report]. ALL-TECH Environmental Services Limited, Ground Water Assessment – Addendum to Phase II ESA, Centennial Elementary School, 2A George Street, Lower Sackville, Nova Scotia, Submitted to Halifax Regional School Board, July 2016.

Environment Canada, Environmental Protection Series, Identification of Lamp Ballasts Containing PCBs,

Report EPS 2/CC/2, August 1991.