addendum no. 2 tender call no. 5-2014 ... - wx.toronto.ca · toronto, ontario m5h 2n2 david...

Victor Tryl Acting Director

Purchasing and Materials Management Division City Hall, 18th Floor, West Tower 100 Queen Street West Toronto, Ontario M5H 2N2

David Ferguson Manager Construction Services

March 13, 2014 Via Website Posting (12 pages)

Addendum No. 2 Tender Call No. 5-2014

Closing: 12:00 NOON (LOCAL TIME), March 17, 2014

For: all materials, equipment, labour and supervision to complete roof replacement, remedial roof repairs and structural improvements at the Amesbury Sports Complex Arena and Outdoor Pool

Please refer to the above Tender document in your possession and be advised of the following:

1. ADDITIONAL DOCUMENTATION – Designated Substance Survey Report

Please find attached to this addendum the Designated Substance Survey Report (10 pages) prepared by Fisher Environmental Ltd dated March 6, 2014 provided for the information of bidders.

Please note that Contractors must comply with the Guideline publication:"Lead on Construction Projects" as released by the Occupational Health and Safety Branch, Ministry of Labour (Ontario). The document is available on the Ministry of Labour website at:

www.labour.gov.ca

2. QUESTIONS AND ANSWERS

Below are responses to questions received during the bid period:

Q1. I need to know about item 8.0 there is no specification on execution or manufacture contact information on the reflective ceiling work that has to be done . look at drawing G1-01 ?

A1. As noted in Item 8.0 Drawing G1-01, the minimum prescribed requirements for the reinforced Aluminum Foil Ceiling (Foil Ceiling) are as follows:

Reflective fabric ceiling shall be:

a) Specifically for use in ice rinks and able to resists the impact of hockey pucks. the fabric shall,

b) have a bonded fiber glass reinforcing core layer with 98% pure aluminum on one side and a layer of foil reinforcing facing material, and

c) The foil facer on the back of the fabric shall reflect a min. ot 90% of the radiant energy that transfers through the roof.

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2

The existing Foil Ceiling is an old ceiling using old technology. New ceilings with the same function have evolved and are commercially available through different manufacturers.

These ceiling can be considered as proprietary and most likely some enhancements shall be included to the above such as insulation layers and double sided foils.

Provided the minimum prescribed design is conformed, they shall be classified as an acceptable alternative.

Q2. In the construction sequence-scope of work item 5 are all the trusses being painted and cleaned?

A2. Yes, this is a optional unit price. All trusses shall be wirebrushed/grinder cleaned free of all loose paint and rust and coated with the new paint.

Q3. In item 7 the is no specification for the air –circulation system it states to repair and replace . I need to know what is required.?

A3. This is a Cash Allowance Item. No action is required at time of bid. Once we remove the ceiling we can then investigate what needs repairs.

The period for questions is now passed

Should you have any questions regarding this addendum, please contact Mike Voelker, CSCMP, at [email protected]

Please attach this addendum to your RFT document and be governed accordingly. Bidders must acknowledge receipt of all addenda on the space provided on the Tender Call Cover Page as per the Process Terms and Conditions, Section 1, Item 8 - Addenda, of the Tender Call document. All other aspects of the Tender remain the same.

Yours truly,

David Ferguson, Manager, Construction Services Purchasing and Materials Management

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400 ESNA PARK DRIVE, UNIT 15, MARKHAM, ONTARIO L3R 3K2 P: 905 475 7755 F: 905 475 7718 1

WWW.FISHERENVIRONMENTAL.COM

March 6, 2014

City of Toronto

Construction Management /Capital Projects Section

Parks, Forestry & Recreation Division

North York Civic Centre

5100 Yonge Street, 3rd Floor

Toronto, ON Canada

M2N 5V7

Attn: Paulo Fetalvero, B.Arch

Construction Coordinator

Re: Pre-Renovation Designated Substance Survey (DSS), Amesbury Sports Complex Arena & Outdoor Pool, 155 Culford Rd., Toronto, ON

Dear Mr. Fetalvero,

As requested Fisher Environmental Ltd. (Fisher) has completed a Pre-Renovation Designated

Substance Survey of portions of the building located at 155 Culford Rd., Toronto, Ontario. It

was the intent of this current survey to identify any asbestos containing materials and /or other

Designated Substances (DS) that may be encountered by site contractors during proposed site

construction works which included the removal and replacement of portions of the building’s roof

(Sections A, F, and H – as identified on attached Accent Building Science Roof Plan) in addition

to structural upgrades to the existing steel roof trusses servicing Roof A (Arena).

The survey, which was completed on March 3, 2014, was conducted in compliance with the

Ontario Ministry of Labour (MOL) regulations for designated substances; O. Reg. 490/09 -

Designated Substances and O. Reg. 278/05 - Asbestos on Construction Projects and in

Buildings and Repair Operations made under the Occupational Health and Safety Act (OHSA),

R.S.O. 1990.

Asbestos

Asbestos had long been identified as a serious occupational health hazard, and in 1982 it

became one of the first of the designated substances to be regulated under the OHSA. Criteria

for exposure to asbestos are regulated by O. Reg. 490/09 - Designated Substances and O.

Reg. 278/05 - Asbestos on Construction Projects and in Buildings and Repair Operations made

under the OHSA.

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During the current survey, twenty (20) samples of building materials were collected and

submitted for asbestos content analysis. The analysis included ten (10) samples of roofing

material, seven (7) samples of caulking, and three (3) samples of roofing mastic. Refer to the

attached Site Plan for a presentation of sampling locations. Results of analysis, (refer to

Certificate of Analysis 14-8040) revealed that no asbestos was detected within any of the

analyzed samples.

Within the arena area (Roof A) two Transite rain water leader pipes were visually identified.

These non-friable asbestos containing pipes extended from the roof and terminated at ground

level. Interconnections of these pipes with roof drains were noted to be uninsulated.

Based on the findings of this investigation and the described scope of works it would not be

expected that contractors conducting the roof renovation works would encounter any asbestos

containing materials with the possible exception of the Transite rain water leader pipes. Should

some disturbances to the rain water leader pipes be required then any such works should be

conducted in accordance with the requirements of Ontario Regulation 278/05. Under the

regulation, removal and/or disturbances to non-friable asbestos containing materials may be

performed as a Type 1 Asbestos Operation provided the asbestos containing material is wetted,

and only non-powered hand tools are utilized. Additionally, contractors should be advised that

asbestos may be located in other building materials including but not limited to drywall

compound, pipe insulation, fire doors, wiring components on electrical motors and switches, etc.

Should the proposed site construction works involve disturbances to any of these materials then

further product specific evaluations should be conducted.

Lead

A criterion for airborne exposure to lead is presented under O. Reg. 490/09 - Designated

Substances made under the Ontario Occupational Health and Safety Act, which references a

maximum permitted time weighted average exposure value for lead of 0.05 mg/m3. Under the

Surface Coating Materials Regulation of the Federal Hazardous Product Act, Health Canada

has currently established a total lead limit for surface coating materials, including paints or other

similar materials that dry to a solid film of 90 mg/kg or 90 ppm.

The Ontario Ministry of Labour (MOL) has not prescribed criteria defining an analyzed sample of

bulk material as “lead-containing”. Further, the MOL has not established a lower limit for

concentrations of lead in paint, below which precautions do not need to be considered during

construction projects. In 2004 the Ontario MOL issued a Guideline: Lead on Construction

Projects that outlines practices that should be followed during construction projects to protect

workers’ from exposure to lead.

Except for very aggressive disturbance of painted finishes, (e.g., abrasive blasting, torch cutting,

welding, or grinding), Fisher Environmental considers that a lead content below 0.1% by weight

(1,000 ug/g or 1000 ppm) represents a concentration in which the lead content of a painted

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surface is not the limiting hazard for construction hygiene purposes. Under such conditions the

utilization of regular construction dust suppression techniques and worker hygiene practices

should be sufficient to ensure that exceedances of the regulated time weighted average

exposure value of 0.05 mg/m3 will not occur.

During the current survey two samples of paint were collected from the yellow structural steel

trusses located within the arena, Roof A. The results of analysis revealed a lead content that

ranged from 883 ppm to 6,239 ppm. As it is understood that some aggressive disturbances -

welding and/or grinding of the steel trusses painted surfaces will be required then it would be

recommended that any such works be conducted in accordance with the 2004 MOL publication

Lead on Construction Projects. Under the guideline the scraping or sanding of a lead containing

paint may be conducted as a Type 2A operation provided only non-powered hand tools are

utilized. If powered grinders are utilized or welding is conducted directly on painted surfaces

then a Type 3A operation would be applicable. Requirements for respiratory protection and

containment measures for each type of operation are also presented in the guideline which is

appended to this report.

No other indication of lead containing materials, with the exception of that which may be

contained within batteries, was observed during the building inspection works.

Silica

No sampling for silica was conducted, however because the building is constructed of concrete

and brick with concrete floors, silica is expected to be found within these building materials.

Criteria for exposure to silica are regulated by O.Reg. 490/09 - Designated Substances made

under the OHSA. Refer also to MOL 2004 Guideline: Silica on Construction Projects.

During the proposed renovation works where disturbance of silica containing materials may

occur and where silica dust may be generated, it would be recommended that dust suppression

techniques be utilized, and workers wear respiratory protection in accordance with

recommendations as indicated in MOL Guideline: Silica on Construction Projects, 2004.

As benzene may be contained within petroleum products contained on-site, it is recommended

that only individuals trained and licensed by the TSSA (petroleum mechanics) conduct site

works involving equipment that comes in contact with petroleum products.

Other Designated Substances

Criteria for exposure to other designated substances as listed above are regulated by O. Reg.

490/09 - Designated Substances made under the OHSA.

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No immediate corrective actions were recommended with regard to acrylonitrile, arsenic, coke

oven emissions, benezene ethylene oxide, isocyanates, mercury and vinyl chloride.

We trust that the information provided in the report meets your current requirements. If you have

any questions or concerns, please do not hesitate to contact the undersigned.

Respectfully submitted,

Sean Fisher M.Sc. Eng. David Fisher, P. Eng., C. Chem. Project Manager Principal Fisher Environmental Ltd. Fisher Environmental Ltd.

Attachments: Site sampling Plan

Site Photos

Laboratory Analysis Report

2004 MOL Guideline Lead on Construction Projects

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14-8040-1 Fisher Environmental Ltd. sampling

location and lab #, DSS 2014

14-8040-1114-8040-2

14-8040-3

14-8040-4

14-8040-5

14-8040-6

14-8040-14

14-8040-814-8040-9

14-8040-10

14-8040-13

14-8040-1

14-8040-12

14-8040-7

14-8040-15

14-8040-1614-8040-1714-8040-19 14-8040-20

14-8040-18

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View of Roof A (Arena)

View of steel trusses located above arena, Roof A

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View of non-friable asbestos transite rain water leader, arena

Uninsulated union of rain water leader with roof drain

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Client: City of Toronto F.E. Job #: 14-8040

Parks, Forestry and Recreation Project Name: 155 Culford Road

Address: 5100 Yonge St, 3rd Floor Project ID:

Toronto, ON Date Sampled: 3-Mar-14

M2N 5V7 Date Received: 3-Mar-14

Tel.: Date Reported: 5-Mar-14

E-mail: Location: Amesbury Park Sports Complex

Attn: Paulo Fetalvero 155 Culford Road,Toronto, ON

Asbestos, Lead

22 Bulk Samples

Lab Sample ID Sample Matrix Fibre Type

14-8040-01 Roofing Material










14-8040-11 Caulking

14-8040-12 Caulking

14-8040-13 Caulking

14-8040-14 Caulking

14-8040-15 Caulking

Not DetectedRoof A - North West

Roof A - South West Not Detected

Not Detected

Roof H - West

Roof F - North Not Detected

Roof F - South

Certificate of Analysis

Analysis Requested:

Sample Description:

Client Sample ID Asbestos Content

Roof A - North East

Not DetectedRoof A - Mid Central

Not Detected

Not Detected

Roof H - East

Roof F - Centre Not Detected

Not Detected

Roof F - Brown/Grey Caulking Not Detected

Not Detected

Roof H - Centre Not Detected

Roof A - Brown Caulking Not Detected

Roof A - White Caulking Not Detected

Roof F - Brown/Grey Caulking

Roof F - White Caulking Not Detected

FISHER ENVIRONMENTAL LABORATORIES

FULL RANGE ANALYTICAL SERVICES SOIL /WATER / AIR TESTING ENVIRONMENTAL

COMPLIANCE PACKAGES 24 HOUR EMERGENCY RESPONSE CALA ACCREDITED

400 ESNA PARK DRIVE #15

MARKHAM, ONT. L3R 3K2

TEL: 905 475-7755

FAX: 905 475-7718 www.fisherenvironmental.com

Page 1 of 3 Results relate only to the items tested10 of 12


Asbestos, Lead

22 Bulk Samples

Lab Sample ID Sample Matrix Fibre Type

14-8040-16 Caulking

14-8040-17 Caulking

14-8040-18 Mastic

14-8040-19 Mastic

14-8040-20 Mastic

ANALYTICAL METHOD:

Client Sample ID

Roof H - Grey Caulking Not Detected

Roof F - Black Mastic Not Detected

Fisher Environmental Laboratories (Lab ID #: 2745) is accredited by CALA (Canadian Association for Laboratory Accreditation Inc.) for asbestos

analysis by PLM.

Asbestos has been done in accordance with normal professional standard using the following Fisher Environmental Lab Method: Asbestos by PLM

(Polarized Light Microscope) F-26, Rev.2.2.

Sample Description:

Roof H - Black Mastic Not Detected

Roof H - Black Mastic Not Detected

Roof H - Grey Caulking Not Detected


Analysis Requested:

Asbestos Content



Asbestos, Lead

22 Bulk Samples

Lab Sample ID Sample Matrix Lead (ppm)

14-8040-21 Paint 883

14-8040-22 Paint 6,239

< result obtained was below RDL (Reported Detection Limit).

Blank RDL Duplicate AR

Found AR

Lead <10 10 121 54-146 14 0-20

LEGEND:

< result obtained was below RDL (Reported Detection Limit);

AR - Acceptable Range obtained from historical data;

RPD - Relative Percent Difference.

ANALYTICAL METHODS:

Metals (Lead) - Method # F-1, Rev. 4.5, Standard Operation Procedure for determination of Metals by the Inductively Coupled Plasma- Optical. Method

used by Fisher Environmental Lab complies with the Standard Methods for the Examination of Water and Wastewater, 20th Ed 3120-B.

QA/QC Report

Parameter

Client Sample ID

(ppm) RPD (%)

QC/Spike Sample

Yellow Paint - Ice Rink Structure


Yellow Paint - Ice Rink Structure

Analysis Requested:

Sample Description:

Comments

Authorized by:_____________________________ Roger Lin, Ph. D., C. Chem.

Laboratory Manager


addendum no. 2 tender call no. 5-2014 ... - wx.toronto.ca · toronto, ontario m5h 2n2 david...

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