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12 <br /> ORANGE COUNTY <br /> NORTH CAROLINA <br /> Asset Management Services <br /> Date: March 27, 2019 <br /> Project: Board of Elections Water Mitigation <br /> Background: <br /> In August, 2018 Sasser Companies was awarded a contract for the remediation and HVAC relocation <br /> at the Government Services Annex Building (Board of Elections). The HVAC relocation appropriated in <br /> the FY2017-18 CIP, the remediation of the building became necessary due to the extremely wet/humid <br /> weather and multiple flooding events, and therefore mold began to grow within the building and within <br /> the HVAC system, once a portion of the occupied space was cleaned the mold returned within other <br /> areas and therefore became emergent to clean the entire building for a full remediation. <br /> The additional scope of work to complete the interior water mitigation includes the following: <br /> 1. This scope includes additional funding to cover the costs to meet a tight construction schedule <br /> for the HVAC installation. <br /> 2. In order to move the Board of Elections staff in on schedule temporary air conditioning units <br /> were required for staff to start the work to prepare for the election. <br /> 3. Electrical work required to connect the new HVAC units, reconnect all lighting fixtures after <br /> remediation, and removing all unused power in the attic during deconstruction. <br /> 4. A portion of the work included installing individual hot water heaters for the sinks, the electrical <br /> contract to purchase the hot water heaters did not include the plumbing connections, and the <br /> HVAC relocation contract did not include any plumbing, therefore these plumbing costs are to <br /> connect the plumbing for these hot water heaters. This change also includes cleaning the <br /> basement floor drains to ensure flood waters are able to drain out quickly if flooding occurs. <br /> 5. When this project was designed in 2017 the design was not to change the HVAC system due to <br /> humidity or environmental concerns. The system was design to replace the existing system. <br /> However, due to the humidity and environmental concerns that arose prior to construction <br /> additional humidity controls and a duct heater are to be installed to ensure humidity is monitored <br /> and controlled going forward, including CO2 sensors and remote monitoring. <br /> 6. The water intrusion into the basement is still occurring and causing concerns within the first floor <br /> of the building, based on the recommendations of the investigative engineer the emergent need <br /> is for a temporary vapor barrier and dehumidifiers to be installed within the basement above the <br /> flood plain. There will be four dehumidifiers installed per this change. The dehumidifiers will be <br /> permanent to the building. The vapor barrier is only a temporary solution until the flood prone <br /> area of the basement can be filled in, and the ground water can be diverted away from the <br /> building. <br /> 7. Due to the basement and 1st floor having stairwell access this allows for contaminated air to <br /> enter into the 1st floor ceiling and storage room. The stairwell shall be removed, and a floor <br /> installed to create a telephone room. This will block the air from the basement from entering into <br /> the 1 st floor. <br /> P.O. Box 8181 * 131 West Margaret Lane,3rd Floor* Hillsborough, North Carolina 27278 <br /> Telephone:919 245-2625 <br /> Fax:919-644-3001 <br /> E-mail:AMService@orangecountync.gov <br />