Work consists of performing Preventive Maintenance (PM) and Repair Services for the Naval Information Warfare Center (NIWC) Atlantic Facilities located on Joint Base Charleston – Weapons Station (JB CHS-WS), South Carolina. Performance shall be in accordance with all applicable laws, regulations, standards, instructions, Manufacturer Recommended Maintenance, and Industry Best Practices, as described in the Performance Work Statement (PWS) with a dedicated focus on safety and customer service. The following are examples of the dispersion of maintenance and repair work requirements at various locations, but not limited to: Chilled and standard air conditioning unit systems; Air handling systems; Pumps; Electric motors and controllers; Chilled water piping systems; Chilled water system chemical treatment; Adjustable frequency drives; Computer Room Air Conditioning Units (CRAC); Mechanical thermal insulation; HVAC control systems; Electric and gas fired boilers; Dehumidifiers; Steam humidifiers; Exhaust fans; Variable air volume terminals and boxes; Backflow preventers; Electrical distribution equipment; Corrosion control applications; Operation of Direct Digital Controls System (DDC) maintenance, programming and repair, software updates and hardware updates; Service calls; General building and structure deficiencies; Irrigation system maintenance, repair and troubleshooting; Exterior; Escort services for maintenance vendors and Contractor support; Roll-up door services and repairs; Programmable Logic Control (PLC) Systems; and maintenance of all wooden pedestrian bridges and walkways.