Dominion Valley Section 53 Sanitary Sewage Pump Station

Key Accomplishments

Johnston Construction Company

• Constructed the new sewage pump station infrastructure and coordinated all required utility connections.
• Constructed the project's monolithic cast-in-place concrete wet well.
• Constructed the monolithic cast-in-place comminutor chamber.
• Constructed the new valve vault serving the pump-station discharge system.
• Installed two submersible sewage pumps and associated pumping-system equipment.
• Furnished and coordinated the pump control system, including provisions for simultaneous operation of both pumps during high-demand conditions.
• Integrated pump operating status, HOA position, high-temperature alarms, seal-failure alarms and pump-fault alarms with the station's SCADA system.
• Installed the new channel-mounted comminutor and associated local controls.
• Incorporated high-level monitoring of the comminutor influent channel through the PLC/control system.
• Installed process piping, valves, fittings, supports and associated appurtenances required for a fully functioning wastewater pumping facility.
• Installed new sanitary sewer and force-main connections associated with the pump station.
• Performed utility trenching, pipe bedding, backfilling and compaction.

B & R Electrical Contractors

• Served as the electrical subcontractor to Johnston Construction Company for construction of the new Dominion Valley Section 53 Sanitary Sewage Pump Station.
• Furnished electrical labor, materials, tools, equipment and supervision necessary to execute BRE's contracted electrical work.
• Performed electrical construction in accordance with the project's Division 16 electrical specifications and Electrical Drawings E-1 through E-6.
• Furnished and installed conduit, wiring and connections for lighting and power systems throughout the new pump-station facility.
• Furnished conduit, wiring and electrical connections serving instrumentation and control panels furnished by others.
• Furnished conduit, wiring and electrical connections serving the station's intrusion/security system furnished by others.
• Furnished and installed the project's lighting systems and fixtures.
• Installed electrical infrastructure serving the new pump-station control building and process structures.
• Furnished and installed major electrical gear within BRE's scope.
• Furnished and installed the station's Power Quality Monitor (PQM).
• Furnished and installed panelboard-related electrical infrastructure.
• Installed grounding and bonding systems associated with BRE's electrical work.
• Furnished and installed applicable dry-type transformer equipment.
• Installed disconnect switches and circuit breakers serving pump-station equipment.