1. Wilton Public Schools Town of Wilton, Connecticut Miller-Driscoll School Public Presentation Public Presentation October 14, 2015

2. 2 Miller Driscoll Public Presentation October 14, 2015 1.Introduction 2.Design Review – Tai Soo Partners 3.Hazardous Building Materials Investigation Summary, Abatement Specification, SIP & Abatement Process - TRC 4.Construction Phasing - Turner 5.Questions & Answers

3. Miller-Driscoll Project Rationale: School Requires Renovations to Meet Current Standards School Requires Renovations to Meet Current Standards Safety/Security Safety/Security Ventilation Ventilation Acoustics Acoustics Technology Technology Energy Efficiency Energy Efficiency Significant Deferred Capital Infrastructure Projects Required Significant Deferred Capital Infrastructure Projects Required Pre-School Space Inadequate to Accommodate Growing Special Needs Pre-K Population Pre-School Space Inadequate to Accommodate Growing Special Needs Pre-K Population Provide Value to the Community Provide Value to the Community

4. Renovation – Plans Create dedicated Pre-K space on lower level with separate entrance and drop off/pick up loop Replace old ‘peach core’ with new classrooms and cafeteria Convert south cafeteria to additional gym space Reconfigure administrative are to create single, secure K-2 entrance Relocate playgrounds to rear of building Demolish north cafeteria wing and replace it with additional parking

5. PROPOSED SITE LAYOUT

6. MAIN ENTRANCE & CANOPY

7. PRE-K ENTRANCE

8. 8 Miller-Driscoll School Renovation Miller-Driscoll School – Hazardous Building Materials Investigation Summary, Abatement Specification, SIP & Abatement Process

9. 9 Miller-Driscoll School Renovation Hazardous Building Materials Investigation Summary Investigation scope was designed based on the scope of the contemplated renovation. Miller-Driscoll School – majority of the school is 1960’s construction; certain areas were constructed in 1989 and 1995. Asbestos, lead, PCBs & other regulated items were expected to be identified, as they are typical for a school of this age. Presence of these building materials does not indicate a health/safety risk.

10. 10 Miller-Driscoll School Renovation Asbestos Miller wing/Driscoll wing – floor tile/mastic, glues, chalkboards, fire door insulation, duct insulation (kitchen), pipe insulation, fireproofing (boiler room areas), roof flashing & caulking/glazings. Majority of ACM is non-friable materials. Some friable materials are present, however they are located in inaccessible areas above ceiling or in fixed wall cavities.

11. 11 Miller-Driscoll School Renovation Lead Majority of the paints associated with plaster walls, sheetrock walls, concrete walls, window components & door components contained non-detectable/low levels of lead for both the Miller and Driscoll wings. Higher lead levels (>1.0 mg/cm 2 ) were found in the paint coatings of the structural steel (I-beams) in non-accessible areas behind walls & ceilings of both the Miller and Driscoll wings. These areas are subject to EPA Renovation Repair and Painting (RRP) in “child occupied areas” with kids <6. Paints were found to be intact.

12. 12 Miller-Driscoll School Renovation PCBs Unregulated PCBs (<1ppm). Low level State Regulated (≥1ppm but <50 ppm). Federally Regulated (≥50 ppm). Federally-regulated PCB-containing materials have different disposal requirements. ~80% of caulkings/glazings were found to either be unregulated or state regulated. ~20% of caulkings/glazings were federally regulated. *(Atypically low for a school this age).* Caulkings/glazings generally intact. 2 caulkings (50-150 ppm Driscoll classroom windows), 3 caulkings/glazings (2,000- 3,000 ppm Old garage cooler ceiling, Driscoll hallway windows, Driscoll cafeteria doors) & 1 caulking (>150,000 ppm Miller wing pod windows exteriors).

13. 13 Miller-Driscoll School Renovation Other Regulated Items Hg bulbs, halogen bulbs, ballasts, CFCs, printed circuit boards (typical components). TRC’s technical specification requires use of a CT DEEP licensed spill contractor for proper handling and packing for recycle/disposal.

14. 14 Miller-Driscoll School Renovation Abatement Specifications/SIP Technical specifications for the abatement of hazardous building materials (contractor certification, setup process, removal activities, engineering controls, work practices, disposal, work area clearances, etc.) approved by local building officials & the CT Bureau of School Facilities (BSF). Written by CTDPH licensed/certified professionals. Self-Implementing Cleanup Plan (SIP) – Plan that addresses the investigation and remediation of PCBs identified at the site. – Thoroughly reviewed by EPA and revised as requested. – SIP approved by EPA on September 10, 2015.

15. 15 Miller-Driscoll School Renovation Abatement Process As much work as possible will be conducted while the students/staff are not in the building (e.g., summers, school vacations, weekends). Any asbestos work that will have to be done while “school is in session” will have a specific safety plan in place, with pre-approval by CTDPH. Parents/Teachers/Faculty will be notified. Any areas where abatement is being conducted will not be accessible to Students/Teachers/Faculty.

16. 16 Miller-Driscoll School Renovation Abatement Process (continued) Abatement of hazardous building materials done by CTDPH-licensed and EPA/OSHA-trained contractors. Abatement contractor duties will included but won’t be limited to: – Setting up polyethylene negative pressure enclosures (NPE). – Using engineering controls during abatement (wet methods & HEPA vacuuming) to prevent fibers/dust from escaping the NPE. – Proper disposal of waste.

17. 17 Miller-Driscoll School Renovation Abatement Process (continued) TRC will be providing a full time CT licensed project monitor on-sight during all hazardous building materials abatement. His/her duties will include but won’t be limited to: – Background air/dust monitoring before, during and after abatement activities. – Pre-visual inspections of NPE prior to the start of abatement. – Ensuring abatement contractor is using all necessary engineering controls. – Post visual inspections to ensure all hazardous building materials have been removed in the NPE. – Conduct clearance testing prior to the breakdown of the NPE. PCM/TEM air testing (asbestos). PCB dust wipes/PCB substrate verification samples (PCBs).

18. Phase I - Summer 2016 Phase I – Summer 2016 Site Work Phase II – Summer 2017 Site Work Parent Drop Off/Pick Up Bus Drop Off/Pick Up Construction Fencing Double Access Gate 18 Owner Trailer Contractor trailers and storage 8’ Construction Fence Remove & Replace hardware on exit doors for fire exits Double Gate with Chain and Combination Lock Phase II – Summer 2017 Miller-Driscoll Site Work Phasing

19. Overall Phasing Plan Miller-Driscoll Phase I – New Addition Phase II – Summer 2016 Renovation Phase III – Winter/Spring 2017 Demolition Phase IV – Summer 2017 Renovation Phase V – Summer/Fall 2017 Renovation 19

20. 20 Phasing Plan Miller-Driscoll Phase 1a Demolition of Peach Core December 2015 to January 2016 Building Demolition

21. Phasing Plan Miller-Driscoll Phase I – New Addition December, 2015 to December, 2016 Phase I Addition Phase I – New Addition Phase II – Summer 2016 Renovation Phase III – Winter/Spring 2017 Demolition Phase IV –Summer 2017 Renovation Phase V – Summer/Fall 2017 Renovation 21 Exterior Partition by General Trades Interior Partition by General Trades Sound Blankets by General Trades

22. Phasing Plan Miller-Driscoll Phase II – Renovation June, 2016 to August, 2016 Phase I Ongoing Phase II Renovation Phase I Ongoing Phase I – New Addition Phase II – Summer 2016 Renovation Phase III –Winter/Spring 2017 Demolition Phase IV –Spring 2017 Renovation Phase V – Summer 2017 Renovation 22 Exterior Partition by General Trades Interior Partition by General Trades Sound Blankets by General Trades

23. Phasing Plan Miller Driscoll Phase III – Demolition December, 2016 to June, 2017 Phase III Demolition Phase I – New Addition Phase II – Summer 2016 Renovation Phase III –Winter/Spring 2017 Demolition Phase IV –Summer 2017 Renovation Phase V – Summer/Fall 2017 Renovation 23 Exterior Partition by General Trades Interior Partition by General Trades Sound Blankets by General Trades

24. Phasing Plan Miller Driscoll Phase IV – Renovation June, 2017 to August, 2017 Phase I – New Addition Phase II – Summer 2016 Renovation Phase III –Winter/Spring 2017 Demolition Phase IV –Summer 2017 Renovation Phase V – Summer/Fall 2017 Renovation 24 Exterior Partition by General Trades Interior Partition by General Trades Sound Blankets by General Trades

25. Phasing Plan Miller Driscoll Phase V – Renovation June,2017 to December, 2017 Phase V Renovation Phase I – New Addition Phase II – Summer 2016 Renovation Phase III –Winter/Spring 2017 Demolition Phase IV –Summer 2017 Renovation Phase V – Summer/Fall 2017 Renovation 25 Exterior Partition by General Trades Interior Partition by General Trades Sound Blankets by General Trades

26. 26 Miller-Driscoll Public Presentation October 14, 2015 Questions & Answers