ADDENDUM No. 1 July 11, 2013 ASBESTOS ABATEMENT SPECIFICATIONS. Crawlspace Abatement and New Beginnings Academy

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1 BID No ADDENDUM No. 1 July 11, 2013 ASBESTOS ABATEMENT SPECIFICATIONS Crawlspace Abatement and New Beginnings Academy Owner NEW BEGINNINGS ACADEMY 211 East Michigan Avenue Ypsilanti, Michigan Building(s) NEW BEGINNINGS ACADEMY 211 East Michigan Avenue Ypsilanti, Michigan OWNER ASBESTOS CONSULTANT New Beginnings Academy arch environmental group 211 East Michigan Avenue Interchange Drive Ypsilanti, Michigan Farmington Hills, Michigan Phone: (248) Fax: (248)

2 The following changes have been made to the asbestos abatement specification for asbestos abatement activities at New Beginnings Academy and should be incorporated into the Scope-of-Work. 1. Bid No New Beginnings Academy Bid Advertisement, Additional Information for Bidders (Page 4): The paragraph has been changed to read: All applicable insurance policies (including asbestos specific) will be required of each accepted Bidder. Bidders must submit copies of the Contractor s current State of Michigan Asbestos Abatement License. This project is not tax exempt from State Sales Tax and/or Use Tax. All materials and supplies incorporated and used in construction and becoming a permanent part of this project will not be exempt from State Sales Tax and/or Use Tax. Prevailing wages are required for this project. 2. Bid No New Beginnings Academy Project Summary for Bid Advertisement, [Abatement], Project 1 (Page 5): See Item #5 of this addendum. 3. Bid No New Beginnings Academy Project Scope of Work and Requirements, Project Sequencing, Project 1 (Page 17): See Item #5 of this addendum. 4. Bid No New Beginnings Academy Project Summary for Bid Advertisement, [Abatement], Project 1 (Page 5): Due to significant changes to the project requirements, Project 1 Crawlspace TSI Abatement as included in the original specification documents (Pages 19-23) has been deleted in its entirety and has been rewritten. A copy of the corrected project scope of work and requirements for Project Group 1 Crawlspace TSI Abatement is located in Attachment #1 of this addendum. Please refer to the corrected Project Group 1 Crawlspace TSI Abatement included in this addendum only. Do not refer to the Project 1 Crawlspace TSI Abatement issued in the specification documents. All references to Project 1 Crawlspace TSI Abatement throughout the specifications are changed accordingly, including, but not limited to: Project Summary for Bid Advertisement, [Abatement], Project 1 (Page 5); and Project Scope of Work and Requirements, Project Sequencing, Project 1 (Page 17). 5. Pre-Bid Minutes for Bid No Project Schedule Information, Project Dates, Schedule Table (Page 30): The table has been changed to read: Bid No New Beginnings Academy Project # Start Date Ready for PAs Completion Date # Work Days 1A Abatement Friday, Monday, 5:30 p.m. Wednesday, 5:30 p.m. 3 + td [F-Sa, M + W] 1B Abatement Tuesday, Saturday, 5:30 p.m. Tuesday, 5:30 p.m. 5 + td [Tu-Sa + Tu] 1R Reinsulation Wednesday, N/A Friday, 5:30 p.m. 13 [W-F, M-F, M-f]

3 6. Bid No New Beginnings Academy General Conditions, Item #12, Prevailing Wages (Page 42): Item #12 Item #12.4 have been changed to read: 12. Prevailing Wages 12.1 The project, herein defined, is a prevailing wage rate project. Any and all contractor and subcontractor personnel associated with the work stated herein will be paid in accordance with the prevailing wage rates included within this document. A determination by the Michigan Department of Labor that the prevailing wage law has been violated shall constitute a material breach of the contract agreement Certified payrolls for all Contractor and Sub-Contractor personnel supporting this project will be required on a weekly basis. All certified payrolls are to be submitted directly to the Construction Manager. Payments may be withheld if certified payrolls have not been received The review of current prevailing wage rates and overtime requirements/provisions has been requested by the Owner and is located in the final section of the specification. 7. Prevailing Wage Rate Information Prevailing wages are in effect for all asbestos abatement activities and reinsulation activities at New Beginnings Academy. The official prevailing wage rate schedules for this project will be provided once received from the State of Michigan. Due to time constraints, the official prevailing wage rate schedules may not be received until after the bid due date. All Bidders should review the general information schedules for third quarter of 2013in Wayne County at the following website: These schedules are for references purposes only and are not part of the official contract documents. However, Bidders should use these documents as the reference basis for submitting their bids. Necessary adjustments to the contract amount, if any, will be made after the official prevailing wage rate schedules are received from the State of Michigan.

4 New Beginnings Academy Bid No Addendum No. 1 Attachment #1

5 New Beginnings Academy Project Group 1 Crawlspace TSI Abatement Project Summary: The first and only project group for abatement at New Beginnings Academy includes the removal of all asbestos thermal system insulation materials, including asbestos pipe fitting insulation on fiberglass lines and asbestos straight pipe insulation with associated pipe fittings, from the crawlspaces below the building. The project will include, but is not limited to, the entire north crawlspace and the entire south crawlspace. This project at New Beginnings Academy will involve multiple negative pressure enclosures to remove the asbestos thermal system insulation materials using Class I glovebag removal procedures. The project will begin on Friday, August 2, 2013, and will be complete with all abatement activities, with all abatement activities and ready for TEM clearances by the end of the work day on Saturday, August 10, The project schedule allows for a total of eight (8) work days (Friday-Saturday, Monday-Saturday) to complete the project, with additional time allowed for tear down activities. Abatement Activities: 1. Remove and dispose of asbestos pipe fitting insulation on fiberglass lines from the identified areas at New Beginnings Academy. 2. Remove and dispose of asbestos straight pipe insulation with associated pipe fittings from the identified areas at New Beginnings Academy. Summary of Locations: Room / Location Materials -> PFIFG SPI Project 1A - North Crawlspace x x Project 1B - South Crawlspace x x Key for Table PFIFG Asbestos Pipe Fitting Insulation on Fiberglass Lines SPI Asbestos Straight Pipe Insulation with Associated Pipe Fittings x Material present in the functional space The scope of abatement for Project Group 1 includes all asbestos thermal system insulation materials located in the identified areas, including all asbestos pipe fitting insulation on fiberglass lines and asbestos straight pipe insulation with associated pipe fittings. Abatement Requirements: The Contractor will be allowed to construct a total of two negative pressure enclosures for the complete removal of all of the materials detailed in the Abatement Activities for Project Group The Contractor is responsible for all of the materials listed in the Abatement Activities located inside of the project area. The project area includes all portions of the functional spaces listed in the Summary of Locations table. No additional descriptions are necessary. 2. The regulated areas will be emptied of all furniture, furnishings and moveable objects prior to the start of the project. This activity will be completed by the Owner. The Contractor will not be responsible for any materials below fixed cabinets, shelving units, counters, etc. left in place prior to the start of the project. 3. The negative pressure enclosure constructed to address asbestos abatement in Project 1A, which includes the North Crawlspace, will be set-up in accordance with the following minimum guidelines prior to the start of any abatement activities:

6 Critical barriers, constructed of a minimum of one (1) layer of six-mil polyethylene sheeting, will be set-up over all access points to non-project areas, such as doors to adjoining rooms/hallways, access points, and exterior doors/windows. Asbestos warning signs will be placed on the nonproject side of the critical barrier when necessary to prohibit entrance. No access will be made from these locations into the project area at any time (except through the decontamination chamber). Critical barriers, constructed of a minimum of one (1) layer of six-mil polyethylene sheeting, will be placed over all HVAC return vents, electrical equipment, and all items which cannot be decontaminated inside of the project area. Critical barriers, constructed of a minimum of two (2) layers of six-mil polyethylene sheeting, will be placed over all in ceiling vents. A minimum of one (1) layer of six-mil polyethylene sheeting will be placed over all floor surfaces in the project area. The polyethylene sheeting must be of sufficient width to be fully secured to the side walls of the crawlspace. This activity must take place after the cleaning of asbestos debris from the dirt floor (see Item #5 below) and prior to the start of gross removal. A minimum of two (2) air filtration devices (AFDs) will be placed at the access hole into the project area located in the Boiler Room. This minimum number of machines is desired to create a minimum negative pressure of 0.02 inches of water equivalent, sufficient air changes and appropriate air flow through the enclosure. Due to the limited sizes and locations of the accesses, the Contractor will be required to place intake manifolds on the air filtration devices and duct the intake into the project area. The Contractor will be responsible for properly securing the exhaust tubes in any exterior windows and/or doors used for exhaust locations. The Contractor will be required to set-up a staging area around the elevated wall access hole into the crawlspace located on the east wall of the Boiler Room. The staging area must be maintained under negative pressure as part of the established negative pressure enclosure. The exact size and configuration of the staging area will be coordinated on-site. The staging area will be set-up in accordance with the following guidelines: a minimum of one (1) layer of six-mil polyethylene sheeting will be placed over all wall surfaces, counters and other non-floor surfaces, and flooring inside of the project areas. A three stage decontamination chamber will be required for this project. The decontamination chamber will be connected to the staging area established at the wall access hole into the crawlspace located on the east wall of the Boiler Room. A black polyethylene barrier will be placed in front of the decontamination chamber to provide an additional visual barrier to the work area. The construction of a bag-out chamber will be permitted. The exact location, set-up, position and construction of the bag-out chamber must be reviewed with arch environmental group s Project Coordinator. Bag out chambers set-up without the review and approval of arch environmental group will be sealed and/or torn down at the discretion of arch environmental group. 4. The negative pressure enclosure constructed to address asbestos abatement in Project 1B, which includes the South Crawlspace, will be set-up in accordance with the following minimum guidelines prior to the start of any abatement activities: Critical barriers, constructed of a minimum of one (1) layer of six-mil polyethylene sheeting, will be set-up over all access points to non-project areas, such as doors to adjoining rooms/hallways, access points, and exterior doors/windows. Asbestos warning signs will be placed on the nonproject side of the critical barrier when necessary to prohibit entrance. No access will be made from these locations into the project area at any time (except through the decontamination chamber).

7 Critical barriers, constructed of a minimum of one (1) layer of six-mil polyethylene sheeting, will be placed over all HVAC return vents, electrical equipment, and all items which cannot be decontaminated inside of the project area. Critical barriers, constructed of a minimum of two (2) layers of six-mil polyethylene sheeting, will be placed over all in ceiling vents. A minimum of one (1) layer of six-mil polyethylene sheeting will be placed over all floor surfaces in the project area. The polyethylene sheeting must be of sufficient width to be fully secured to the side walls of the crawlspace. This activity must take place after the cleaning of asbestos debris from the dirt floor (see Item #5 below) and prior to the start of gross removal. A minimum of two (2) air filtration devices will be placed at the floor access hatch into the project area located in Room 133. This minimum number of machines is desired to create a minimum negative pressure of 0.02 inches of water equivalent, sufficient air changes and appropriate air flow through the enclosure. Due to the limited sizes and locations of the accesses, the Contractor will be required to place intake manifolds on the air filtration devices and duct the intake into the project area. The Contractor will be responsible for properly securing the exhaust tubes in any exterior windows and/or doors used for exhaust locations. The Contractor will be required to set-up a staging area around the floor access hatch into the crawlspace located in the West Stage Foyer. The staging area must be maintained under negative pressure as part of the established negative pressure enclosure. The exact size and configuration of the staging area will be coordinated on-site. The staging area will be set-up in accordance with the following guidelines: a minimum of one (1) layer of six-mil polyethylene sheeting will be placed over all wall surfaces, counters and other non-floor surfaces, and flooring inside of the project areas. A three stage decontamination chamber will be required for this project. The decontamination chamber will be connected to the staging area established at the floor access hatch located in the West Stage Foyer. A black polyethylene barrier will be placed in front of the decontamination chamber to provide an additional visual barrier to the work area. The construction of a bag-out chamber will be permitted. The exact location, set-up, position and construction of the bag-out chamber must be reviewed with arch environmental group s Project Coordinator. Bag out chambers set-up without the review and approval of arch environmental group will be sealed and/or torn down at the discretion of arch environmental group. 5. After the establishment of each negative pressure enclosure, but prior to the start of gross removal, the Contractor will be required to remove all asbestos thermal system insulation debris from the dirt floors throughout the project areas. The Contractor will remove 1-2 of dirt from all locations within 2 of asbestos thermal system insulation debris that is on the dirt floor. 6. All thermal system insulation abatement activities will be completed in accordance with the listed Class I Glovebag Abatement Procedures ( General Procedures for Asbestos Abatement, Item 11.4 ) and with all applicable provisions of the OSHA Asbestos Standard ( (g) - Methods of Compliance ). 7. All asbestos-containing materials must be removed using wet methods and then bagged and sealed immediately. Bags will be randomly checked as they are transported from the enclosure and double bagged. All bags determined to not be adequately wet will be sent back into the enclosure. No bags may remain open inside the enclosure. The Contractor will be permitted to leave sealed bags inside the enclosure overnight. All bags must be removed from the enclosure prior to the start of the visual inspection. 8. All surfaces inside the enclosure will be fully washed with a combination of wire brushing, rinsing, wetwiping and HEPA vacuuming during the final cleaning portion of the project. During final cleaning activities, the polyethylene flooring will be rinsed and then encapsulated during the lock down portion of the project.

8 9. At the conclusion of the final cleaning activities in the enclosure, a visual inspection will be completed in accordance with the listed Visual Inspection Procedures (Item #4, General Requirements and Information ). Final Clearance Sample Requirements: Each negative pressure enclosure established for the removal of materials in both the Project 1A and Project 1B work areas will be cleared using Transmission Electron Microscopy (TEM). Pursuant to the requirements of AHERA, thirteen (13) TEM samples will be collected from the enclosure - five inside the enclosure, five outside the enclosure and three sample blanks. All five inside samples must be analyzed below an average of 70.0 AS / mm2 to allow for tear down of the enclosure. All TEM air samples will be collected in accordance with the AHERA regulation and all EPA recommended guidelines. Project Schedule: Project 1A North Crawlspace The Contractor will start the project on Friday, August 2, 2013, and will be complete with all abatement activities and ready for TEM clearance sampling by the end of the work shift on Monday, August 5, The building will be available each work day from 7:00 a.m. - 5:30 p.m. The Contractor will be allowed three (3) work days (Friday- Saturday, Monday) to complete the project, with additional time provided for tear down activities. Project 1B South Crawlspace The Contractor will start the project on Tuesday, August 6, 2013, and will be complete with all abatement activities and ready for TEM clearance sampling by the end of the work shift on Saturday, August 10, The building will be available each work day from 7:00 a.m. - 5:30 p.m. The Contractor will be allowed five (5) work days (Tuesday-Saturday) to complete the project, with additional time provided for tear down activities. Additional project dates include: # Location Start Ready for PAs End # Days 1A North Crawlspace - Abatement Friday, Monday, 5:30 p.m. 1B South Crawlspace - Abatement Tuesday, Saturday, 3:00 p.m. Wednesday, 5:30 p.m. Tuesday, 5:30 p.m. 3 + td 5 + td Schedule Restrictions - Set-up: The Contractor will not be allowed to mobilize to the project site until 7:00 a.m. on Friday, August 10, Schedule Restrictions - Set-up: The Contractor will not be allowed to begin set-up activities in the South Crawlspace until all abatement activities in the North Crawlspace are completed and the project area has successfully passed the visual inspection. The Contractor will not be allowed to begin removal activities in the South Crawlspace until TEM samples have been collected in the North Crawlspace project area. Schedule Restrictions - Work Days: The Contractor will be required to work each scheduled Saturday unless the project is completed prior to the final scheduled Saturday. Project Diagrams: There are two (2) project diagram provided for Project Group 1. The attached diagrams show the approximate setup of the project areas and the approximate locations of asbestos materials to be removed.

9 Approximate locations of concrete/ block walls dividing crawlspaces Approximate location of Crawlspace

10 Access Hole in Wall Staging Area Set-Up - Project 1A/North Stagging Area Set-Up Project 1B/South Floor Access Hatch Floor Access Hatch