Massaponax 1 MG Composite Elevated Water Storage Tank

Key Accomplishments

Johnston Construction Company

• JCC’s scope included a new composite elevated water storage tank, approximately 2,275 linear feet of 12-inch and 16-inch water main, electrical and fiber optic line, precast concrete chemical building, residual control system with submersible tank mixer, and related appurtenances.
• Major work included water main installation, valves, vaults, fittings, connections, tank foundation and tank construction, chemical building construction, electrical and miscellaneous underground utility infrastructure, fiber optic raceway, stormwater management BMP and piping, erosion and sediment control, gravel access road construction, testing, disinfection, startup, and closeout.
• The work included furnishing and installing 16-inch water main, 12-inch water main, 6-inch fire line, 1-1/2-inch copper water service, ductile iron fittings, gate valves, air release valves with precast vaults, fire hydrant assemblies, jack-and-bore steel casing, tapping saddle, and water meter items.
• The project required coordination with Spotsylvania County, Hazen and Sawyer, utility providers, tank suppliers, electrical and fiber optic contractors, geotechnical engineers, testing agencies, chemical system suppliers, Massaponax High School stakeholders, inspectors, and project closeout personnel.
• The project required compliance with the contract documents, February 2025 Massaponax EWST specifications, Addenda, erosion and sediment control requirements, water main testing and disinfection requirements, electrical requirements, tank construction requirements, geotechnical recommendations, safety requirements, submittal requirements, and project closeout requirements.
• Johnston Construction Company performed the Massaponax Elevated Water Storage Tank project for the Board of Supervisors of Spotsylvania County, Virginia. The Owner-Contractor Agreement identifies the project as the construction of the Massaponax Elevated Water Storage Tank under Contract No. 25-20-SD, with Spotsylvania County as Owner and Johnston Environmental Company dba Johnston Construction Company as Contractor.
• The project was designed by Hazen and Sawyer, P.C., with Spotsylvania County identified as Construction Manager. The agreement required JCC to provide all materials, tools, equipment, labor, professional and non-professional services, and all other items necessary to fully and properly perform and complete the work required by the contract documents.
• The agreement required substantial completion within 600 calendar days from the Notice to Proceed and final completion within 720 calendar days from the Notice to Proceed or otherwise established commencement date.
• JCC’s work included maintaining, inspecting, replacing, and removing existing erosion and sediment control measures, as well as furnishing, erecting, maintaining, and removing new erosion and sediment controls required by the regulatory authority and project plans. This included silt fencing, construction entrances, and other erosion and sediment control items required during construction.
• Tank work included furnishing and installing a new 1.0 MG composite elevated water storage tank and associated appurtenances. The geotechnical report describes the proposed elevated tank as an above-grade water tank with approximately 70-foot diameter, 36-foot pedestal, and approximate capacity of 1 million gallons. The tank work was coordinated with associated site development, underground pipeline, chemical storage building, generator pad, access roads, and stormwater management features.
• The project also included a precast concrete chemical building and residual control system with submersible tank mixer. The chemical building and chemical system were included as part of the elevated water storage tank work, along with associated appurtenances, electrical systems, controls, and site support improvements.
• The geotechnical report provided recommendations and background for the elevated tank, chemical storage building, generator pad, pipeline, stormwater management, foundation design, earthwork, and site preparation. The report noted that the project included a proposed elevated water tank east of Massaponax High School, underground water pipeline connection to the water supply system, stormwater management through in-situ infiltration, chemical storage building, generator pad, and access roads.

Concrete Services Division

• Concrete Services Division, LLC performed concrete forming, placement, finishing, curing, and accessory work for the Massaponax Elevated Water Storage Tank project in Fredericksburg, Virginia.
• The overall project included construction of a new 1.0 MG composite elevated water storage tank, approximately 2,275 linear feet of 12-inch and 16-inch water main, electrical and fiber optic line, precast concrete chemical building, residual control system with submersible tank mixer, and related site and access road improvements.
• CSD’s scope included concrete work for the tank foundation, tank slab, derrick slab, generator pad, concrete collars around valve boxes / quazite boxes, chemical building slab with containment area and grout slope, overflow and conduit vaults, OHD ramp, equipment pads, dowels, and related concrete improvements.
• Major concrete work included slab-on-grade forming, curved wall forming, straight wall forming, slab-on-grade placement, wall placement, grout placement, float and screed work, trowel finishing, point and patch work, bagging, curing, concrete accessories, equipment pads, and dowel installation.
• The concrete work required coordination with Johnston Construction Company, Spotsylvania County, Hazen and Sawyer, concrete suppliers, testing agencies, concrete pumping services, equipment providers, tank foundation requirements, chemical building requirements, and project stakeholders.
• The work required compliance with project drawings M4, M5, M6, all structural drawings, BM3, E11, concrete specifications, CB&I project specifications, CB&I foundation drawings, and specification sections for concrete formwork, concrete accessories, joints in concrete, reinforcing steel, cast-in-place concrete, concrete finishes, concrete curing, and grout.
• CSD performed the work under subcontract to Johnston Construction Company. The CSD subcontract, No. 202508SC02, was dated effective June 9, 2025, and identified Concrete Services Division, LLC as the concrete subcontractor, Johnston Construction Company as the contractor, and the delivery location as Massaponax 1MGAL EWST, Guinea Station Road, Fredericksburg, Virginia.
• The overall Massaponax project consisted of furnishing and installing approximately 2,275 linear feet of 12-inch and 16-inch diameter water main, a 1.0 MG composite elevated water tank, electrical and fiber optic line, precast concrete chemical building, residual control system with submersible tank mixer, and all necessary appurtenances, site improvements, and access road improvements at Massaponax High School near Patriot Highway / Route 1 and Guinea Station Road in Spotsylvania County, Virginia.
• The billing worksheet identified approximately 232 cubic yards of concrete, 704.42 square feet of slab-on-grade forming, 897.98 square feet of curved wall forming, 637.00 square feet of straight wall forming, 41.77 cubic yards and 35.85 cubic yards of slab-on-grade placement, 5.90 cubic yards and 147.63 cubic yards of wall placement, and 1.25 cubic yards of grout placement.
• The finishing and closeout concrete work included approximately 1,922.07 square feet of float and screed work, 967.85 square feet of trowel machine finishing, 1,534.98 square feet of point and patch work, 55.14 square feet of bagging, 5,129.31 square feet of curing, 232.38 cubic yards of concrete accessory work, 97.5 dowels, and two equipment pads.
• The project specifications included Division 03 concrete sections for concrete formwork, concrete accessories, joints in concrete, reinforcing steel, cast-in-place concrete, concrete finishes, concrete curing, precast concrete, precast concrete chemical buildings, and grout.
• The concrete finish requirements included furnishing materials, labor, and equipment required to provide finishes for concrete surfaces shown on the drawings and specified in the contract documents. The specifications also required care and repair of concrete, including protection against heat, lack of moisture, overstress, damage, surface defects, cracking, spalling, honeycombing, and other nonconforming conditions before final acceptance.
• CSD coordinated its concrete work with JCC’s broader construction scope, including water main installation, tank construction, chemical building construction, residual control system installation, submersible mixer work, electrical and fiber optic routing, stormwater management, access road improvements, erosion and sediment control, testing, startup, and closeout.
• Through this work, Concrete Services Division supported Johnston Construction Company’s completion of the Massaponax Elevated Water Storage Tank project by providing the concrete forming, placement, finishing, curing, accessories, dowels, equipment pads, tank foundation concrete, tank slab, chemical building slab, generator pad, vault concrete, collars, grout, coordination, and closeout support required for the new 1.0 MG composite elevated water storage tank serving Spotsylvania County Utilities.

Electrical Services Division

• Electrical Services Division performed electrical construction work for the Massaponax Elevated Water Storage Tank project in Fredericksburg, Virginia.
• The overall project included construction of a new 1.0 MG composite elevated water storage tank, approximately 2,275 linear feet of 12-inch and 16-inch water main, electrical and fiber optic line, precast concrete chemical building, residual control system with submersible tank mixer, and related appurtenances, site improvements, and access road improvements.
• ESD’s scope included conduit, wire, connections, lights, switches, receptacles, electrical service, panelboard, surge protection device, grounding, lightning protection ground rods and ground ring, heat trace, electrical excavation, ductbanks, manhole for electrical service, submittal review, O&M manual review, as-built / record drawings, testing coordination, and startup support.
• Major electrical work included furnishing and installing electrical service infrastructure, lighting fixtures, conduit, boxes and devices, wire, switchgear, heat trace, instrumentation, lightning protection components, electrical ductbank excavation, fiber optic-related conduit / cable coordination, and electrical service manhole work.
• The work included three 12-inch conduits through the foundation for future antenna conduits, heat tracing of five lines, and electrical excavation for the ground ring, electrical service, generator, fiber optic, and chemical building, including concrete with rebar reinforcement.
• The electrical work required coordination with Johnston Construction Company, Spotsylvania County, Hazen and Sawyer, utility providers, generator supplier, tank contractor, chemical system suppliers, instrumentation vendors, testing agencies, electrical equipment suppliers, and project stakeholders.
• The work required compliance with Division 26, Division 40, Division 01, Drawings M3, M4, M5, M6, BM4, BM5, BM6, E1 through E12, I1 through I3, Sheets 12 through 16 and 23, Addenda 1 through 6, CB&I preliminary foundation drawings, ESD proposal requirements, ESD control estimate, project safety requirements, submittal requirements, O&M requirements, as-built requirements, testing requirements, and startup requirements.
• ESD performed the work under subcontract to Johnston Construction Company. The ESD subcontract, No. 202508SC04, was dated effective June 20, 2025, and identified Electrical Services Division as the electrical subcontractor, Johnston Construction Company as the contractor, and the delivery location as Massaponax 1MGAL EWST, Guinea Station Road, Fredericksburg, Virginia.
• The overall Massaponax project consisted of furnishing and installing approximately 2,275 linear feet of 12-inch and 16-inch diameter water main, a 1.0 MG composite elevated water tank, electrical and fiber optic line, precast concrete chemical building, residual control system with submersible tank mixer, and all necessary appurtenances, site improvements, and access road improvements at Massaponax High School near Patriot Highway / Route 1 and Guinea Station Road in Spotsylvania County, Virginia.
• ESD’s electrical scope included furnishing and installing conduit, wire, and connections. The work also included furnishing and installing lights, switches, receptacles, electrical service, panelboard, surge protection device, ground rods, and grounding ring for the lightning protection system. The tank downleads were to be furnished and installed by others, while ESD’s scope supported the grounding and bonding interface for the lightning protection system.
• The subcontract included three 12-inch conduits through the foundation for future antenna conduits and heat tracing of five lines. ESD’s work also included electrical excavation for the ground ring, electrical service, generator, fiber optic, and chemical building, including concrete with rebar reinforcement. This scope supported electrical service routing, underground ductbank construction, generator connections, fiber optic routing, and chemical building electrical infrastructure.
• ESD’s work included a coordination study and installation of a manhole for electrical service. The subcontract also included mobilization and demobilization of electrical equipment, tools, and supplies; review of required submittals and O&M manuals; coordination of materials provided by others; coordination of testing services; coordination of JCC and outside equipment rentals; and preparation of as-built / record drawings upon project completion.
• Emergency generator support work included generator-related electrical items, ATS coordination, offloading, setting, startup, load testing, infrared testing, grounding, fuel and exhaust coordination, and related electrical installation support. The ESD estimate referenced a 40 kW generator set, 200A ATS, startup, load testing, and infrared testing activities.
• ESD coordinated its work with JCC’s broader construction scope, including water main installation, tank construction, chemical building construction, residual control system installation, submersible mixer work, stormwater management, access road improvements, erosion and sediment control, testing, startup, and closeout.