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Lexington Permanent Building Committee 10 May 2012 Shawmut is estimating MSBA submission with new items & materials noted to compare delta to original estimate. DPF has met with DPW and Rec Dept. to discuss field use and maintenance and has forwarded recommendations to design team. Discussion on possible added costs for grading of field as well as options for sod versus seed. DiNisco states final decisions are needed within 2 weeks on grading and seed /sod. DDP updated PBC on discussions from working group meetings on possible use of limestone, split face block. Rendered elevations were also available showing zinc panels, limestone and overall fenestration. Loading dock discussions, included adding a small roof over entry door, locations for dumpsters, screen wall at back of loading dock. 7.33 Design Development 4/12/12 Design Development scheduled to be complete the end of April. PBC Recommends School Department and School Committee have a process of formal sign off of the Design Development Package. 7.34 Designer Update for 4 -26 -12 4/26/12 Chris Hildreth of RDK engineers was present to give an overview of the MEP systems on the project. RDK also provided HVAC narrative and updated energy analysis. Proposed system is a chilled beam induction system. Additional material will be prepared and demonstrate the comparative data for other systems evaluated. This information to be shared with Energy Committee. RDK also discussed energy rebates briefly as well as other measures such as Dark Schools, day - lighting, light sensors etc. DPF will contact ECC chair and seek feedback. ECC was invited to the 4/26/12 PBC meeting to evaluate comparative data on Mechanical system options and energy model updates. While only one member of the ECC was available for the meeting the Mechanical consultant was equally not able to provide the documentation the facilities department was seeking. Updated material was requested from the engineer and Pat G. will work with ECC to reach consensus on systems. Designer briefly updated PBC on continued discussion of materials for fa4ade and general design features and building elevations. PBC requested cost comparative data for limestone and similar materials proposed. DDP stated that the next working group meeting would included continuation of design discussion. 7.35 Collaborative Partners Update for 4/26/12 4/26/12 Joe R. introduced members of the Shawmut team and provided a brief update on the status of estimating which included Shawmut's first pass at an estimate on the project. CP was in the process of comparing the Shawmut estimate with that of the schematic design and it was not ready for full discussion. PBC requested a systems summary estimate and Shawmut agreed. 7.36 Collaborative Partners Project Update for 5/10/12 5/10/12 Joe Riley discussion on Cost estimate comparative of Shawmut estimate and schematic design estimate. Next Friday (5/18/12) is deliverable for DD estimate and reconciliation is scheduled for two days 5/20 and 5/21. Cost Estimates to be discussed in more detail at next 5/24/12 PBC meeting. • PBC discussed location of CM trailers would prefer to place them inside the fence. • Question is there - Fence on top of retaining wall. • Meeting with Fire Dept. and Building Inspector on 6/1. • Met today 5/10/12 with Building Inspector and reviewed site logistics fully for building permit for retaining wall. Building Inspector ok with foundation permit. • Met with Shawmut and abatement contractors to walk through building. Shawmut will obtain numbers for abatement for contractors to validate estimate. • Met with Commissioning Agent and working on Owners Project Requirements with Pat. Process is underway. • Meet with Hartwell Ave staff to talk about exporting site materials, environmental services and possibility importing fill materials from Hartwell Ave. • Shawmut working with Electric utility on temp power and new service issues. 7.37 DiNisco Update 5/10/12 Page 6 of 7