Pomonkey Pump Station Improvements

Key Accomplishments

Johnston Construction Company

• JCC contracted directly with the County Commissioners of Charles County, Maryland, with Johnston Construction Company identified as the Contractor for Project Request / ITB No. 26-017, Pomonkey Pump Station Improvements.
• The work included demolition of the existing below-grade pump station, construction of a new wet well, process mechanical piping, equipment and valve enclosure, civil site work, temporary bypass pumping, electrical work, instrumentation, and system integration.
• Major work included mobilization and general conditions, erosion and sediment control measures, demolition, furnishing and installation of the Pomonkey Pump Station, demobilization, and site restoration.
• The work required coordination with Charles County Government, Department of Public Works, County project management, the Engineer, utility providers, pump station equipment suppliers, electrical and instrumentation personnel, testing agencies, inspectors, and project stakeholders.
• The project required compliance with Charles County requirements, project drawings and specifications, pump station construction requirements, mechanical and electrical requirements, instrumentation and control requirements, temporary bypass pumping requirements, site restoration requirements, prevailing wage requirements, testing requirements, startup requirements, training requirements, and closeout requirements.
• Johnston Construction Company performed work for the Pomonkey Pump Station Improvements project in Charles County, Maryland. The executed contract identifies Johnston Construction Company as the Contractor and the County Commissioners of Charles County, Maryland as the County for Project Request No. 26-017, Pomonkey Pump Station Improvements.
• The project included construction improvements at the existing Pomonkey Pump Station located at 3567 Livingston Road in Indian Head, Maryland. The work included demolition of the existing below-grade pump station and construction of a new pump station facility with a new wet well, process mechanical piping, equipment and valve enclosure, civil site improvements, temporary bypass pumping, electrical work, instrumentation, and system integration.
• JCC’s work included mobilization, project coordination, construction sequencing, temporary facilities, erosion and sediment control measures, site preparation, demolition, excavation, pump station installation, mechanical piping, site restoration, testing, startup, training, and closeout activities.
• The demolition work included removal of the existing below-grade pump station and related components necessary to prepare the site for the new pump station construction. This work required careful sequencing and coordination to maintain wastewater service, protect existing utilities, and support construction of the replacement facility.
• The new pump station work included construction of a wet well, installation of process mechanical piping, installation of pump station equipment, construction of the equipment and valve enclosure, and installation of related appurtenances required for a complete and operational wastewater pumping facility.
• The project included temporary bypass pumping to maintain wastewater operations while the existing pump station was demolished and the new improvements were constructed. Bypass pumping required coordination with the County, sequencing of demolition and installation activities, and protection of the existing sanitary sewer system during construction.
• Mechanical work included process piping, valves, fittings, pump station equipment, emergency pumping provisions, mechanical insulation where required, heating and ventilation, testing, startup, and operational support. The project specifications included mechanical requirements for equipment, piping, valves, fittings, emergency dry-prime pump equipment, pump station components, testing, and operating instructions.

Concrete Services Division

• Concrete Services Division, LLC performed concrete construction work for the Pomonkey Pump Station Improvements project in Indian Head, Maryland.
• The project included improvements to the Pomonkey Pump Station, including demolition of the existing below-grade pump station and construction of a new wet well, process mechanical piping, equipment and valve enclosure, civil site work, temporary bypass pumping, electrical work, instrumentation, and system integration.
• CSD performed its work under subcontract to Johnston Construction Company for forming and concrete placement associated with the Pomonkey Pump Station Improvements project.
• CSD’s scope included mobilization and demobilization of concrete equipment, form material, form lumber, form installation and stripping, concrete placement labor, concrete finishing labor and supplies, concrete curing labor and supplies, concrete accessory work, winter protection labor, rebar handling support, and coordination of concrete, testing, pumping, and equipment provided by JCC.
• The concrete work required coordination with Johnston Construction Company, Charles County Government, the Engineer, concrete suppliers, testing agencies, pumping services, equipment providers, and project stakeholders.
• The project required compliance with the project concrete requirements, structural drawings, civil drawings, inspection and testing requirements, submittal requirements, erosion and sediment control requirements, temporary facilities and environmental protection requirements, safety requirements, prevailing wage requirements, and project closeout requirements.
• CSD performed the work under subcontract to Johnston Construction Company. The CSD subcontract, No. 202513SC02, was dated effective November 20, 2025, and identified Concrete Services Division, LLC as the subcontractor and Johnston Construction Company as the contractor. The delivery location was Pomonkey Pump Station Improvements, 3567 Livingston Road, Indian Head, Maryland.
• The overall project included improvements to an existing wastewater pump station facility. The work included demolition of the existing below-grade pump station, construction of a new wet well, process mechanical piping, equipment and valve enclosure, civil site work, temporary bypass pumping, electrical work, instrumentation, and system integration.
• CSD’s work focused on the concrete construction required to support the improved pump station facility. The scope included forming, placing, finishing, curing, and concrete accessory work associated with the pump station improvements.
• The concrete scope included mobilizing and demobilizing concrete equipment, tools, and supplies to and from the jobsite; rental of form material; purchase of form lumber; installation and stripping of forms; concrete placement labor; concrete finishing labor and supplies; concrete curing labor and supplies; and concrete accessory material and labor for items such as PMJ, waterstop, caulk, and related accessories.
• CSD’s scope also included winter protection labor, resteel placing labor and supplies on a time-and-material basis to JCC, unloading rebar labor with equipment by JCC, coordination of concrete purchased by JCC, coordination of testing lab services paid for by JCC, coordination of concrete pumping services paid for by JCC, and coordination of JCC and outside equipment rentals paid for by JCC.
• The concrete work included approximately 21 cubic yards of concrete, 365.50 square feet of slab-on-grade forming, 20.16 cubic yards of slab-on-grade placement, 1.22 cubic yards of fill placement, 181.42 square feet of float and screed work, and 546.92 square feet of curing.
• The subcontract excluded excavation, backfill, stone subgrade, concrete material, concrete pumping rental, concrete testing services, winter protection blankets and heaters provided by JCC, retainage, and certain equipment provided by JCC. However, CSD’s work included the labor, coordination, forming, placement, finishing, curing, and accessory support necessary to complete the concrete portion of the project.
• The work required CSD to follow Johnston Construction Company’s schedule, attend jobsite planning and production meetings as scheduled by JCC, coordinate deliveries through the project manager, provide 48-hour notice before delivery of materials or equipment, and perform its work in coordination with other project trades.

B & R Electrical Contractors

• B & R Electrical Contractors performed electrical construction work for the Pomonkey Pump Station Improvements project in Indian Head, Maryland.
• The project included improvements to the Pomonkey Pump Station, including demolition of the existing below-grade pump station and construction of a new wet well, process mechanical piping, equipment and valve enclosure, civil site work, temporary bypass pumping, electrical work, instrumentation, and system integration.
• BRE performed its work under subcontract to Johnston Construction Company for the electrical work associated with the Pomonkey Pump Station Improvements project.
• BRE’s scope included conduit, wire, connections, exposed GRC conduit, underground PVC power conduit, PVCC control conduit, electrical gear, lighting, pole bases, MTS / generator tap box, heat trace, lightning protection, arc flash study, temporary electric, utility power line assistance, expanded mesh, OZ Gedney fittings, testing coordination, startup, and as-built / record drawings.
• Major electrical work included utility meter, CT cabinet, soft starters by JCC, fan starter by JCC, Panel H, Mini Power-Zone, 30A disconnect, Type A lighting, Type B lighting, two poles, pole bases, MTS / generator tap box, heat trace per JCC takeoff, and lightning protection.
• The work required coordination with Johnston Construction Company, Charles County Government, the Engineer, utility providers, pump station equipment suppliers, electrical suppliers, instrumentation suppliers, testing services, and project stakeholders.
• The project required compliance with the project electrical requirements, Specification Divisions 16 and 17, Drawings E-1 through E-3 and I-1 through I-9, Addenda 1 and 2, BRE’s proposal, BRE’s control estimate, JCC’s schedule, safety requirements, submittal requirements, O&M manual requirements, testing requirements, startup requirements, and closeout requirements.
• BRE performed the work under subcontract to Johnston Construction Company. The BRE subcontract, No. 202513SC01, was dated effective November 24, 2025, and identified B & R Electrical Contractors as the subcontractor and Johnston Construction Company as the contractor. The delivery location was Pomonkey PS Improvements, 3567 Livingston Road, Indian Head, Maryland.
• The overall project included improvements to an existing wastewater pump station facility. The work included demolition of the existing below-grade pump station, construction of a new wet well, process mechanical piping, equipment and valve enclosure, civil site work, temporary bypass pumping, electrical work, instrumentation, and system integration.
• BRE’s work focused on the electrical construction required to support the improved pump station facility. The scope included furnishing and installing conduit, wire, connections, electrical gear, lighting, pole bases, generator connection equipment, heat trace, lightning protection, temporary electric, electrical support for site work, testing coordination, startup support, and closeout documentation.
• Power conduit work included furnishing and installing GRC conduit for exposed areas and PVC underground conduit for power. Control conduit work included furnishing and installing PVCC conduit for control wiring. BRE’s scope also included expanded mesh and OZ Gedney fittings required for the electrical installation.
• Electrical gear included the utility meter, CT cabinet, Panel H, Mini Power-Zone, and one 30A disconnect. The subcontract also noted two soft starters and a fan starter by JCC, requiring electrical coordination with JCC-furnished equipment.
• Lighting work included two Type A fixtures, two Type B fixtures, and two poles. BRE’s scope also included furnishing and installing pole bases for the lighting installation.
• BRE’s generator-related work included furnishing and installing the MTS / generator tap box. The billing worksheet also included an emergency generator line item, supporting the overall standby power and emergency electrical requirements for the pump station.