The Contractor shall provide on-site fire protection staff to perform preventative maintenance (PM), testing, and repair/remediation of deficiencies to water-based fire suppression systems including, but not limited to: sprinklers, standpipe, hoses, hydrants, water supplies, fire service water mains, back flow preventers, fire pumps, fire pump motor controllers, water storage tanks, valves that control system flow, and all appurtenances. Proper interval water-based fire protection testing shall be in accordance with NFPA 25 testing requirements regarding fire alarm signaling code, tamper and flow switches. This Contractor shall work in conjunction with vendors providing digital fire suppression at the discretion of OGS. OGS follows the digital fire alarm testing schedule, when possible, typically during the evenings and weekends, access and weather dependent.