ADDENDUM NO. 1 TENDER CALL NO FOR THE RENOVATION OF BUILDING B AT 320 BERING AVE., TORONTO.

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1 Michael Pacholok Director Purchasing and Materials Management Division City Hall, 18 th Floor, West Tower 100 Queen Street West Toronto, Ontario M5H 2N2 Joanne Kehoe Manager Construction Services December 2, 2015 Via Internet Posting 24 pages ADDENDUM NO. 1 TENDER CALL NO FOR THE RENOVATION OF BUILDING B AT 320 BERING AVE., TORONTO. CLOSING DATE: DECEMBER 8, :00 NOON (LOCAL TIME) Please refer to the above Request for Tender (RFT) document in your possession and be advised of the information as outlined below: 1. Changes: See attached for changes to this tender & information. 2. Questions & Answers: See attached for questions & answers for this project. Should you have any questions regarding this addendum, please contact Brenda Duffley at bduffley@toronto.ca or fax (416) Please attach this addendum to your Request for Tender 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, Joanne Kehoe Manager, Construction Services Purchasing & Materials Management 1 of 24

2 TENDER CALL NO ADDENDUM NO. 1 I. CHANGES i. REVISE: Sheet A701 Partition Type EW-1 : Exterior finish on 5/8 sheathing board on 5 D z-girts in lieu of 1/2 exterior grade fibre reinforced cement board on 5 D z-girts. Refer to Specification section for assembly details and product types. ii. ADD: At existing exterior steel column at gridline A1-1 : remove existing paint finish and provide new priming and painting of existing I-shaped steel column, size: 12 x12 x7 0 H iii. ADD: At 7no. exterior steel bollards: remove existing paint finish and provide new priming and painting of existing bollards, size: 12 diam. X 3-6 H iv. REVISE: a. Delete section Self Levelling underlayment and drawing 2/A104. b. Add to Specification Section Carpeting and Epoxy Flooring: i. Floor trade for respective specification section to provide manufacturer s proprietary floor topping to ensure level finish throughout respective floor area. Floor varies +/-3/4. ii. Provide moisture test of existing slab on grade prior to installation of flooring Work. v. REVISE: sheet AD101: room intersecting GL-4 and south of GL B-1contains porcelain tile vi. ADD: DSS Report dated Nov. 26, 2015 by Fisher Environmental Ltd. vii. viii. Refer to Addendum EA-01 for additional changes. ADD: Section Product Substitution Procedures Item : Only the General Contractor is to submit the necessary product information. Requests from Suppliers or sub-contractors will not be reviewed. II. QUESTIONS AND ANSWERS DURING BIDDERS MEETING: Q1) Where is the Contractor s laydown area? A1. Refer to revised drawing sheet A010 dated Q2) What is the procedure for removing catch basins? A2. Refer to mechanical and structural drawings. Coordinate work with Structural and mechanical contractors. III. QUESTIONS AND ANSWERS: Q1) There is indication on drawings of a window schedule, this cannot be located in the documents. Please advise. A1. Delete reference to window schedule. Dimensions of windows and locations can be found on exterior and interior elevation drawings. Q2) In Lunch Room 114, elev 8 references exterior window to be HM frame, is this correct (dwg. Reference 4/A405)? A2. Delete HM Paint reference at this location. All Exterior windows to be aluminum frame. 2 of 24

3 Q3) Please advise size of Grab Bars GB-1 beside urinals in room 116. A3. Refer to drawing 3/A105 for grab bar dimensions both sides of urinal. Q4) Please advise which type of Toilet Tissue Dispenser required in washrooms 116, 117 (TTD-1 or TD-1). A4. TTD-1 or approved equivalent. TTD-1 to be provided where toilet indicated. Q5) Advise location requirements of PTD-1 Towel Dispenser not shown on drawings. A5. Delete PTD-1 reference. Q6) Section Asphalt Paving and Traffic Painting Item Scope of Work: demolish existing asphalt pavement around perimeter of foundation as req d to facilitate foundation wall repairs. Provide new asphalt pavement where existing has been removed to facilitate foundation wall repairs. Please advise do we need to demolish all asphalt pavement around the building perimeter? What is the requirement for repair the foundation? A6. Delete item The scope of work for Asphalt and traffic painting work is identified on sheet A010 dated Q7) Drawing S201 indicating Remove=exist catch basin. Please advise should we totally remove the catch=basin (~3 meter deep) or just the top portion (~1 meter deep)? A7. Remove top portion of catch only to depth as identified. Reconnect existing 10 diam. drainage pipe (site verify) and provide compacted back fill below new slab on grade. Q8) Drawing S201 indicating Existing slab on grade to remain, patch and make good exist slab on grade as required. 5 slab min. Please advise what is the thickness of the existing slab? A8. Thickness of existing slab is 5. IV. CLARIFICATION: The award shall be based on the Products specified in the Tender documents. Alternate materials that are not listed may be proposed as a substitution after the award, as per the tender. 3 of 24

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14 November 26, 2015 Sara Reid Environmental Project Manager City of Toronto, Corporate Services Facilities Management Metro Hall, 55 John Street Toronto ON, M5V 3C6 Re: Pre-Renovation Designated Substance Survey, 320 Bering Ave. Building B, Toronto, Ontario. Dear Ms. Reid, As requested Fisher Environmental Ltd. (Fisher) has completed a Pre-Renovation Designated Substance Survey within the building located at 320 Bering Ave. Toronto, ON. and referenced as Building B. At the time of inspection the subject building was vacant and the survey covered all accessible portions of the structure. The intent of this current survey was to identify any asbestos containing materials and /or other designated substances that may be encountered by site contractors during proposed site renovation works which generally included but were not limited to the following; Interior renovations including demolition and re-construction of interior walls, in addition to flooring, ceiling, and lighting upgrades throughout Concrete works including decommissioning of existing interior catchbasins / drains Structural repairs to existing loading dock Exterior window and door replacements Location names and numbers where bulk sampling was conducted are referenced from an existing building Designated Substance Survey conducted by Fisher Environmental Ltd. in July of 2014, refer to Fisher Project # The fieldwork for the current Pre-Reno DSS was conducted on November 6, Prior pre-renovation DSS s were also conducted by Fisher Environmental for the site building in December 2012, and April Asbestos-Containing Materials Samples of homogenous materials suspected to contain asbestos were collected and submitted for determination of asbestos content. Materials expected to be potentially impacted by planned construction activities and suspected to potentially contain asbestos included acoustic ceiling tiles, drywall joint 400 ESNA PARK DRIVE, UNIT 15, MARKHAM, ONTARIO L3R 3K2 P: F: of 24

15 Fisher Environmental Ltd. November 26, 2015 compound, vinyl floor tiles, roofing materials and exterior caulking compounds. A total of forty-three building material samples were collected and analysed for asbestos content within the three Pre-Reno DSS completed for the building. The samples were submitted to Fisher Environmental Laboratories for Polarised Light Microscopy (PLM) analysis, as outlined in NIOSH Method The laboratory analysis report for the samples collected and analysed within the current survey is included as Attachment A. The results of PLM sample analysis for all samples are summarized in Table 1, below. Table 1 - Summary of Bulk Asbestos Sample Analysis (Polarised Light Microscopy) Sample No. Sample Location Sample Description Asbestos Content (% by Weight/Type) to 7 Various Locations Drywall Joint Compound None Detected to 13 Various Locations Ceiling Tile None Detected to 16 Location 1-16 Vinyl Floor Tile layer below surface 0.5-5% Chrysotile to 19 Location 1-16 Blue Vinyl Floor Tile Surface Tile None Detected to 22 Location 1-16 Mastic on Blue Tile None Detected Roof, Southeast Black Roofing Tar None Detected Roof, Northeast Black Roofing Tar None Detected Roof, Northwest Black Roofing Tar None Detected Roof, West Grey Roof Sheeting Membrane None Detected Roof, West Grey Roof Sheeting Membrane None Detected Roof, West Grey Roof Sheeting Membrane None Detected Location 1-07 (Office) Beige 12 x 12 Vinyl Floor Tile None Detected Location 1-07 (Office) Beige 12 x 12 Vinyl Floor Tile None Detected Location 1-07 (Office) Beige 12 x 12 Vinyl Floor Tile None Detected Exterior, West Grey Window Putty None Detected Exterior, Southeast Grey Window Putty None Detected Exterior South Grey Window Putty None Detected Exterior, West Black Window Putty 0.5%-5% Chrysotile Exterior, Southeast Black Window Putty 0.5%-5% Chrysotile Exterior South Black Window Putty 0.5%-5% Chrysotile Exterior Door, East Beige Caulk None Detected Exterior Panel, East Brown/Black Caulk 0.5%-5% Chrysotile Pre-Reno DSS 320 Bering Ave. Building B, Toronto, ON The City of Toronto, Facilities Management 15 of 24 Page 2

16 Fisher Environmental Ltd. November 26, 2015 Sample No. Sample Location Sample Description Asbestos Content (% by Weight/Type) Exterior Glass, South Black Caulk 0.5%-5% Chrysotile Exterior South Window Frame Beige over Brown Caulk 0.5%-5% Chrysotile Exterior West Door Beige Caulk some Brown 0.5%-5% Chrysotile Exterior North Door Beige Caulk - Door, North 0.5%-5% Chrysotile Ontario Regulation 278/05 ( O.Reg. 278/05 ) defines an asbestos-containing material as that with an asbestos content equal to or greater than 0.5% by weight. Laboratory analysis of each sample by PLM method revealed that asbestos was identified within three samples of sub-surface vinyl floor tiles located within location 1-16, and nine of twelve samples of exterior putty and caulking compound samples. No asbestos was identified within any of the analysed drywall joint compound samples, acoustic ceiling tiles, vinyl floor tiles (at surface), and roofing samples. Inspection of several rooms within the building observed to contain vinyl tile flooring revealed the presence of a second layer of vinyl tile located below the surface. In response to the analysis conducted it is recommended that all subsurface vinyl floor tiles be presumed to contain asbestos. Additionally, as caulking / putty materials utilized on the exterior of the building were noted in some instances to consist of multiple layers of asbestos and non-asbestos materials it is recommended that all building caulking and window putty be assumed to contain asbestos. Prior to the initiation of any renovation works that disturb the buildings non-friable vinyl floor tiles or caulking / putty materials it is recommended that asbestos abatement works be conducted in accordance with Type 1 Asbestos work procedures as denoted under Ontario Regulation 278/05. Type 1 procedures mandate that that the non-friable asbestos containing materials be pre-wet prior to disturbance and that only non-powered hand tools be utilized. Due to the limited scope of work and the presence of solid building finishes (i.e. plaster or drywall walls and ceilings etc.) in many locations throughout the Site, the full extent of ACM may not be confirmed. Precautions should be taken when dismantling solid wall or ceiling finishes, or any other building surfaces which may conceal potential ACM. Such precautions include, but are not limited to, isolation measures and appropriate personal protective equipment. The presence of ACM should be presumed in locations not accessed during the assessment. Sampling of materials found within operating equipment, portable building articles, confined spaces, or generally non-accessible components such as insulation within electrical switch gears, wiring, motors, light fixtures, gaskets, elevator brakes, fire door cores, and other materials outside of project scope was not performed. Location specific sampling of these materials is recommended prior to disturbance. Pre-Reno DSS 320 Bering Ave. Building B, Toronto, ON The City of Toronto, Facilities Management 16 of 24 Page 3

17 Fisher Environmental Ltd. November 26, 2015 Lead-Containing Paint Materials expected to be impacted by planned construction activities and suspected to potentially contain elevated levels of lead included three visually distinct paint finishes at the Site. Results of analysis for lead content of the subject paint finishes is summarized in Table 2, below. Table 2 - Summary of Lead Paint Sample Analysis Sample No. Sample Location Sample Description Lead Content (ppm and % by Weight) 320BER-PS-9 Aqua Terre BER-PS-10 Aqua Terre 2007 Garage Light Yellow 4,419 (0.442%) Garage Brown 2,294 (0.229%) Garage Yellow Wall Paint 2,714 (0.271%) Sand Blast Area White Wall Paint 62.3 (0.062%) 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. However, except for aggressive disturbance of painted finishes, (e.g., abrasive blasting, torch cutting, or grinding), Fisher believes that a lead content below 0.1% by weight (1,000 ug/g or 1000 ppm) represents a concentration in which the lead content is not the limiting hazard for construction hygiene purposes. Measureable quantities of lead were found in each of the samples analyzed with the yellow and brown paint finishes from within the garage area noted to exceed the 0.1% lead threshold. Where any lead-containing materials may be disturbed or removed, Fisher recommends that appropriate lead abatement procedures be used. Regular construction dust suppression techniques and worker hygiene practices are sufficient for disturbance of paint finishes determined to contain less than 0.1% lead by weight, provided that work is limited to non-aggressive operations. For disturbances to painted surfaces containing greater than 0.1% lead or for other lead works it is recommended that reference be made to the MOL Guideline: Lead on Construction Projects, 2011, for details of the Ministry s health and safety guidelines. Other Designated Substances During the current survey, no sampling for mercury was conducted. However, fluorescent light tubes (known to contain mercury) were observed throughout the Site. Thermostatic controls, where observed, were noted to be electric or dry type. No other building materials or components suspected to contain mercury were noted during the building survey. Pre-Reno DSS 320 Bering Ave. Building B, Toronto, ON The City of Toronto, Facilities Management 17 of 24 Page 4

18 Fisher Environmental Ltd. November 26, 2015 No immediate recommendations are made with regard to mercury. However, if disturbance of the identified fluorescent light tubes presumed to contain mercury is planned as part of the anticipated construction activities, Fisher recommends that these items be removed and disposed of in accordance with all regulations. The disposal of mercury-containing items is regulated under Ministry of Environment (MOE) O. Reg. 337 General Waste Management. Specifically, the fluorescent light tubes should be disposed of at an MOE licensed receiver. Free crystalline silica in the form of common construction sand is a constituent of all concrete and masonry products present at the Site. As the cutting, grinding, or demolition of materials containing silica is anticipated at the Site, it is recommended that these works be completed in accordance with Ontario Ministry of Labour Guidelines for Silica on Construction projects. Specifically, the Guideline prescribes respiratory protection and site isolation during disturbance of silica-containing materials. No other Designated Substances were identified in the proposed project scope areas. If additional suspected Designated Substances not identified in this or previous reports pertaining to the Site are discovered, work should be stopped and the material(s) in question should be sampled for determination of content. We trust you find the enclosed in order, however should you have any questions or concerns please do not hesitate to contact us. Respectfully submitted, Sean Fisher, M.Sc. Eng. Project Manager David Fisher, P. Eng., C. Chem. Principal Attachments: Attachment A - Laboratory Analysis Report Attachment B Site Photos / Site Plan Pre-Reno DSS 320 Bering Ave. Building B, Toronto, ON The City of Toronto, Facilities Management 18 of 24 Page 5

19 Attachment A - Laboratory Analysis Report 19 of 24

20 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: FAX: Client: City of Toronto F.E. Job #: Facilities Management Project Name: Address: 2nd Floor, Metro Hall Project ID: 55 John Street, Toronto, ON Date Sampled: M5V 3C6 Date Received: 9-Nov-15 Tel.: Date Reported: 11-Nov-15 sreid4@toronto.ca Location: 320 Bering Avenue Attn: Sara Reid Toronto, ON Certificate of Analysis Analysis Requested: Sample Description: Asbestos 6 Bulk Samples Client Sample ID Beige Caulk - Door, East Lab Sample ID Sample Matrix Fibre Type Caulk Asbestos Content Not Detected Brown/Black Caulk - Panel, East Caulk Chrysotile 0.5-5% Black Caulk - Glass, South Caulk Chrysotile 0.5-5% Beige over Brown Caulk - South Caulk Chrysotile 0.5-5% Beige Caulk - Door, West Caulk Chrysotile 0.5-5% Beige Caulk - Door, North Caulk Chrysotile 0.5-5% Fisher Environmental Laboratories (Lab ID #: 2745) is accredited by CALA (Canadian Association for Laboratory Accreditation Inc.) for asbestos analysis by PLM. ANALYTICAL METHOD: Asbestos has been done in accordance with normal professional standard using the following Fisher Environmental Lab Method: Asbestos by PLM Authorized by: Roger Lin, Ph. D., C. Chem. Laboratory Manager 20 of 24 Page 1 of 1 Results relate only to the items tested

21 Attachment B Site Photos / Site Plan 21 of 24

22 Photo 1. View of main office area. 2 nd layer of vinyl floor tile exists below surface presumed ACM Photo 2, General View of garage area and brown / yellow paint finishes 22 of 24

23 Photo 3, View of exterior window caulk / putty all exterior caulking and window putty should be presumed to contain asbestos. 23 of 24

24 Legend Area of Confirmed/Assumed Asbestos-Containing Vinyl Floor Tile (2 layers noted) Location Number 1-06 NAR No Access to Room The drawing does not illustrate locations of drywall joint compound, plaster, window caulking or roofing materials Figure LOCATION: 320 Bering Ave. Toronto, Ontario 1-01 BUILDING NAME: Bering Works Yard CLIENT: Building B, Main Floor Plan Asbestos-Containing Material Locations Pre-Reno DSS City of Toronto PROJECT NUMBER: CAD FILE: DATE: SCALE: DRW BY: FE-P NOV 2015 AH FIG1 Not to Scale CHK BY: SF 24 of 24