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Home My WebLink About2019-06-05-PBC-min S,77SR^�h0 TOWN OF LEXINGTON x ° Permanent Building Committee Q 'zv D Permanent Members APRIL 14'" Co-Chairman: Jon Himmel & Co-Chairman Dick Perry fix'"6`� Philip Coleman, Charles Favazzo, Carl Oldenburg,Peter Johnson, Howard Hobbs Project Specific Members Clarke&Diamond Schools Hastings Elementary Fire Station Visitors Center LCP LCC Margaret Coppe Curt Barrentine Robert Cunha Joel Berman Teresa Hank Edwin Goodell Andrew Clarke Joseph Sirkovich Peter Kelly Wilson Manz June 5, 2019 Members Present: Jon Himmel, Dick Perry, Charles Favazzo, DPF Staff: Mike Cronin/Director of Public Facilities Sustainable Lexington Committee: Celis Brisbin, Dan Voss 6:00 PM- The meeting was called to order- 201 Bedford Street, Room 221 1. Integrated Design Discussion for the New Lexington Police Station Project Minutes submitted by Jill Pinsky, The Green Engineer Meeting Notes Project: Lexington Police Station Re: June 5th,2019 Permanent Building Committee Meeting Date Issued: August 29th 2019 Prepared by: Jill Pinsky The Green Engineer(TGE) Chris Schaffner The Green Engineer(TGE) Attended Meeting Lexington Permanent Building Committee(PBC) X Sustainable Building Committee X Lexington Board of Selectmen X To: Lexington Police Department X Lexington Historical District Committee X Tecton Architects X Consulting Engineering Services(CES) X These meeting notes are from the June 5, 2019 meeting at the Lexington Department of Public Works in Lexington, MA. The meeting was conducted with respect to the Town of Lexington's sustainability goals for the new Lexington Police Station. General Police Station Project Information • Project Schedule: The final project schedule is still in progress. The schedule may follow the timeline below: o SD Phase: May-July 2019 o DD Phase: August- October 2019 o CD Phase: End of October 2019 - mid February 2020 o Construction: July 2020 - September 2021 201 BEDFORD STREET• LEXINGTON, MASSACHUSETTS 02420 Lexington Sustainable Design Goals and Project Checklist Status • The project will be designed with respect to the sustainable design goals established by the Town of Lexington (See attached). The meeting referred to the Lexington, MA Integrated Building Design and Construction Policy Evaluation Sheet, or Project Checklist. • Below please find a summary of significant discussions regarding specific sustainability goals. Some of these items may require follow up from various team members. LOCATION AND TRASNPORTATION LEED LTc7: Green Vehicles The project team discussed the possibility of including charging stations to accommodate impending electric fleet vehicles. The team discussed that electric fleet vehicle charging may be a future requirement and the project can save by installing the Infrastucture for them now. SUSTAINABLE SITES LEED SSc4: Rainwater Management The project will utilize a sub-surface infiltration system that will meet local stormwater management requirements as well as the LEED v4 requirements. LEED SSc5: Heat Island Reduction The project plans to install asphalt shingles in order to be compatible with the surrounding structures. The project team is considering installing a solar canopy in the parking lot as well as other alternatives like on the roof of the Cary Memorial Building, which would reduce the heat island effect. It is too early to perform calculations to determine the size of the PV that would be needed in order to meet the credit requirements. WATER EFFICIENCY LEED WEp1 and WEc1: Outdoor Water Use Reduction The PBC is interested in designing the project to be in line with this credit intent to reduce outdoor water use by planting native and adaptive species that do not require permanent irrigation. The LEED project boundary within the site has not been established yet and can be drawn to include landscape that the project team intends to reduce irrigation for. LEED WEc3: Cooling Tower The project may install a cooling tower. What benefit does the cooling tower provide? o Action item: Tecton Architects to review LEED requirements for cooling tower design. ENERGY AND ATMOSPHERE L Lex 1 and LEED EAp1 and EAc1: Fundamental and Enhanced Commissioning and Verification The project team intends to conduct Fundamental Commissioning, HVAC Commissioning, and Building Envelope Commissioning in accordance with LEED v4 criteria. Monitoring-Based Commissioning was discussed in order to monitor and track energy performance over the operational life of the building. Monitoring-Based Commissioning is only useful if the project intends to use the data to understand the actual performance of the building. Lexington may have a Sustainability Coordinator. One of the roles of the Sustainability Coordinator wouldl be to review the commissioning documents. If the project pursues Monitoring-Based Commissioning, then the Sustainability Coordinator could also review the monitoring and trend data. Monitoring Based Commissioning is helpful for predicting potential failures in the system and can save the project in the long term. DOAS:translate into words PBC Meeting 06.05.19 2 LEED EAp2 and EAc2 Minimum/Optimize Energy Performance The project team has set an energy performance target to reduce energy consumption by at least 30%when compared to the ASHRAE baseline. The ASHRAE version will remain TBD. The new Massachusetts energy code specifies ASHRAE 2016. CES presented their findings in the Mechanical System Options report to the team. Three different options for mechanical systems were analyzed; Option 1 includes geothermal heating, a water source VRF system for heating and cooling, and a DOAS system for ventilation. Option 2 includes air source VRF's, and Option 3 includes a conventional fossil fuel boiler heated system and cooling from a chiller [this is only being studied for baseline information]. CES is working on a Life Cycle Costing Analysis (LCCA)of each option and will provide an update once complete. The team discussed the possibility of mechanical system Option 1. This system, in conjunction with onsite renewable energy production, may make zero net energy possible. A geothermal bore field would need to be installed. Conductance Testing must be done early to determine the size of the bore field. Once the bore field have been burried they require little to no maintenance. o Action item: Town to draft proposal for Conductance Testing. It cannot be scheduled on a Tuesday due to weekly farmers market in the lawn where geothermal bore field would be located. o Action item: CES to continue working on the LCCA of the different systems options. LEED EAp3 and EAc3 Building Level and Advanced Energy Metering The project team intends to explore the LEED v4 criteria for installing whole building energy meters as well as advanced energy meters in order to track energy performance through a building automation system. If done early, the electrical panels can be configured to be in line with the energy end uses that need sub meters. This will allow the project team to purchase fewer sub meters. LEED EAc4: Demand Response The project will explore designing the systems to accommodate a future utility demand response program, as one does not exist yet. The team understands that this credit may not be a good fit for an emergency facility, but the design will still have the ability to reduce demand during peak demand periods. LEED EAc5: Renewable Energy Production The project is exploring an onsite renewable energy system to offset operating energy use by 20%. This may be supplemented with offsite renewable energy production. Renewable energy system may be a solar canopy in the parking area. L Lex 1: Utilize Energy Storage Further discussions on this required. Battery back-up may be used to manage demand but may not meet back-up and emergency power requirements of a public safety facility which is required to be fully operational 24/7. L Lex 2: Net Zero Energy The team discussed net zero energy throughout the meeting and continuously discussed ways to approach this goal. Some sort of fossil fuel use is likely for back-up power, but an all-electric HVAC option is on the table. Project may consider a mix of on-site and off-site options to meet net zero. There needs to be more information here;perhaps in the form f a INDOOR ENVIRONMENTAL QUALITY /Mprehetnsiive lengthy footnote. What is the status of the TGE 8/7/19 product? Wi be mature enough for the Police Station project?" L Lex 6: Toxics The Town of Lexington's goals include selethat protect the health and wellbeing of the building occupants. The Town wants to develop a cpolicy that addresses all chemicals of concern and integrates both the LEED requirements for Low Emitting Materials as well as the Town of Lexington's Red List of materials to avoid. The team understands that following the new policy will be challenging but an important effort for establishing safe building standards. The team also understands that once the work is done to develop an approved list of materials for the police station, future projects may refer to this list. o Action item: TGE to develop a draft Chemicals of Concern and Avoidance Policy(provided on 8/7/19). PBC Meeting 06.05.19 3 INNOVATION LEED IDcl-5: Innovation TGE discussed that many projects make the mistake of chasing innovation points. Instead the project should examine what innovative methods they are already using and find existing innovation credits that recognize this effort. NEXT STEPS Team to meet again TBA TGE to continue assisting with finalizing the Integrated Building Design Policy(IBDP)for the Town of Lexington Motion to adjourn was made and seconded: Meeting adjourned at ???? pm. Attendee sign-in below. AttachmentsL The Integrated Design Form in its current form should e attached to this document even if it is just the form witliout anything filled in.. Ideally it would include the scoring strategy existing at the time of the meeting if one existed. The draft of the Policy should also be attached. NR c� r V q�L.k�4" s PBC Meeting 06.05.19 4