Fort George G. Meade WWTP Backwash Valve Replacement

Key Accomplishments

• JCC removed and disposed of the existing valves and installed the replacement valves furnished by American Water.
• JCC furnished the fittings, spool pieces, connection components, labor, equipment, and rigging required to complete the valve installations.
• The valve replacements were coordinated around scheduled process outages to maintain safe operation of the active wastewater-treatment facility.
• JCC developed and maintained the required construction sequencing, project-execution, quality-control, and site-specific safety plans.
• The completed valve installations were inspected, tested, placed into service, and coordinated with American Water’s operating personnel.
• JCC provided startup support, operational training, technical documentation, cleanup, and restoration of the affected work areas.
• Johnston Construction Company performed the WWTP Backwash Valves Replacement project at the Fort George G. Meade Wastewater Treatment Plant in Maryland.
• The project was completed at a U.S. Government military installation operated and maintained through American Water’s military-services organization. American Water Operations and Maintenance, LLC contracted with Johnston Construction Company to perform the valve-replacement work, while American Water Enterprises, LLC provided the engineering and project-design support.
• The purpose of the project was to improve the reliability and operating condition of the backwash-water pumping system by replacing the existing large-diameter isolation and check valves serving Backwash Pumps 1 and 2.
• The work included one 18-inch gate valve and one 18-inch check valve at each pump, for a total of four major valve replacements.
• JCC furnished the labor, tools, supervision, equipment, rigging, and supporting materials required to complete the installations.
• American Water provided the two replacement 18-inch gate valves and two replacement 18-inch check valves.