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MOCASSIN BEND WWTP CLARIFIER MODIFICATIONS

MOCASSIN BEND WWTP CLARIFIER MODIFICATIONS

The Moccasin Bend WWTP is part of the consent decree program. The goal of which is to significantly reduce, and where possible eliminate, sanitary sewer overflows and improve the overall operations of Chattanooga’s sewer system.

The project encompasses the demolition and upgrade of the EQ basins and blower building in facets of civil, mechanical and electrical, in addition to upgrade of other peripherals.

The existing facilities to which these improvements are being made will continue operation during the period of construction. The upgrades will be undertaken in progressive phases to ensure regular plant operations are not disrupted. These in conjunction with volatile state of material deliveries pose a unique challenge.

Project Information:

  • Location: Chattanooga, TN

  • Date Completed (Estimated): August, 2023

  • Contract Value of $27,685,000+

  • Owner: City of Chattanooga

  • Engineer: Jacobs

Notable Specs:

  • The project entails unique requirements which outline the existing facility operations and

    sequencing constraints, around which the project has be undertaken

  • Construction of divider wall in existing EQ basins

  • Vertical turbine pumps to feed the new water cannon system

  • Blower and blower building sequencing and install

  • Mechanical aerators to provide airless aeration

Gallatin WWTP DIGESTER REHAB

Gallatin WWTP DIGESTER REHAB

J. Cumby will be demolishing the existing aeration digester equipment on the site, such as 12" telescopic valves and 12" supernate ductile iron pipe.

J. Cumby will also be installing a new 12" decanter system, 12" and 6" decanter line, ductile iron pipe and pipe supports.

This site is set to be finished by 2023.

Project Information

  • Location: Gallatin, TN

  • Date Completed (Estimated): TBD

  • Contract Value of $99,000+

  • Owner: City Of Gallatin

  • Engineer: James C Hailey & Company

Notable Specs

  • This is one of the several sites that J. Cumby has had the privilege to work on for Gallatin.

LEBANON WWTP SEPTAGE RECEIVING STATION AND UPGRADES

LEBANON WWTP SEPTAGE RECEIVING STATION AND UPGRADES

Major Activities:

  • Installation of septage receiving station for offloading of septage/sludge haulers

  • Replacement or demolition of existing aeration basins equipment including mixers and mixer structures, diffusers, installation of a new baffle curtain system, and installation of a new blower.

PROJECT INFORMATION:

  • Location: Lebanon, TN

  • Completion Date (Estimated): November 2023

  • Contract Value $2,041,500

  • Owner: City of Lebanon Utilities District

  • Engineer: Water Management Services, LLC

NOTABLE SPECS:

- Maintain facility operation while dewatering and replacing equipment within (2) aeration basins during regional dry season

Junction Pump Station Rehabilitation

Junction Pump Station Rehabilitation

The Junction Pump Station Rehabilitation project in Eden, NC is the rehabilitation and upgrade of an existing pump station. The improvements include converting the existing pumps to direct- coupled variable frequency drive submersible motor pumps, replacement of existing piping and valves, and installation of an emergency pump connection for current & future pump station bypass. In addition, the existing wet well will be inspected, cleaned, and coated with a high- performance coating. Electrical improvements include elevating the electrical controls, installation of an automatic transfer switch and installing a permanent generator on an elevated platform supported on micro-piles. General site improvements include installation of an earthen berm, gravel road, concrete sidewalk extension, and cattle wire fence removal; relocation. Overcoming Challenges Presented – JCC Crew worked the unexpected challenges of water backpressure from the WWTP to install the pump station bypass line to complete a planned shutdown working through the challenges presented for a successful installation.

Project Information:

  • Location: Eden, NC

  • Date Completed (Estimated): May 2024

  • Contract Value of $5,892,105.00

  • Owner: City of Eden

  • Engineer: W.K. Dickson

NOTABLE SPECS:

Major Activities:

  • Facility Start-Up & Final Completion

  • Successful Completion of Pump Station Rehabilitation in 40 Days

  • Bypass pumping operations completed 2 months ahead of schedule.

Wilson's Mill Pump Stations Improvements

Wilson's Mill Pump Stations Improvements

The project includes removal of the existing 500 gpm submersible pumps and replacement with new 1,000 gpm submersible pumps including associated piping, valves, and appurtenances (electrical equipment, electrical control rack, generator, instrumentation, bypass pumping and connection etc.).

Project Information:

  • Location: Smithfield, NC

  • Date Completed (Estimated): September 2023

  • Contract Value of $1,520,000

  • Owner: Johnston County Public Utilities

  • Engineer: CDM Smith

Gallatin PUMP STATION AND STORAGE TANK

Gallatin PUMP STATION AND STORAGE TANK

The City of Gallatin contracted J. Cumby Construction to complete a new Equalization Tank and Pump Station. Prior to proceeding with these structures, J. Cumby first demolished the existing structures left on the site. This demolition included the previous EQ tank and pump station from the 1950s, a large concrete slab that previously held a furniture production facility as well as hazardous material removal from the boiler room of another previous structure.

Site conditions required J. Cumby to blast rock prior to the excavation of the new Pump Station Facility.

Lastly and more notably, construction of a new Drainage Basin ‘A’ Flow Equalization Facility including a 10 Million Gallon Prestressed Tank, Concrete Structures, Pumps, Variable Frequency Drives, Piping, Valves, Meters, Concrete, Electrical, SCADA, Building, Site Work, Demolition, and all other appurtenances.

PROJECT INFORMATION:

  • Location: Gallatin, TN

  • Completion Date (Estimated): January, 2022

  • Contract Value of $10,600,000+

  • Owner: City of Gallatin

  • Engineer: James C. Hailey 7 Co.

NOTABLE SPECS:

The inclusion of:

  • A 10-Million-Gallon Prestressed Concrete Tank

  • A Jack and Bore drilling the Sewer Line

  • A Pump Station that’s approximately 30’ in depth

  • A 42” hand bore under railroad

Stones River WTP UPGRADES

Stones River WTP UPGRADES

J. Cumby will be demolishing 20" ductile iron spool pieces, fittings, valves and installing 20" ductile iron spool pieces, fittings, valves and a 700 horsepower vertical turbine pump.

Lastly, J. Cumby will also be changing out 4ea variance frequency drives in the High Service Pump Station, as well as, 4ea variable frequency drives in the membrane pump station.

The Project consists of furnishing all labor, material, and equipment for the installation of a new high service pump, including all associated valves, piping, motor, and variable frequency drive, replacing two (2) existing high service pump variable frequency drives and one backwash pump variable speed drive, replacement of three (3) existing check valves, and the replacement of an existing PLC for the high service pump station including integration. The project also includes the replacement of four (4) existing variable speed drives for the membrane feed pumps.

PROJECT INFORMATION

  • Location: Murfreesboro, TN

  • Date Completed (Estimated): March, 2023

  • Contract Value of $2,013,000

  • Owner: City of Murfreesboro, TN

  • Engineer: Smith, Seckman, Reid, Inc.

NOTABLE SPECS

  • The removal of the existing and installation of the new variable frequency drives must be carefully coordinated with the Stones River Water Treatment Plant which adds difficulty to the project

  • 11930 Vertical Turbine Pumps

West Warren Viola WWTP Exansion and Modification

West Warren Viola WWTP Exansion and Modification

J. Cumby will be upgrading an existing wastewater treatment plant that currently treats 0.9 million gallons of wastewater per day.

Major Activities:

  • Expanding the existing facility’s control building by 2,310 sf

  • This includes an addition of (3) rooms:

-Chemical Feed – Currently in a separate building that will be demolished during this project

-Electrical & Control Room – Moving existing MCC & controls from a different area of the existing control building

-Open space

  • Renovations and additions to the facilities electrical services

  • Generator, motor control center, lighting, wiring

  • Demolition and removal of (2) existing sequencing batch reactor (SBR) systems

  • Installation of (2) new SBR systems

  • Blowers, decanters, analyzers, air supply lines, valves, connectors, pumps and instrumentation

  • Installation of new and modification of existing yard piping

  • Additional structural activities

  • New walkway canopy for the control building

  • Construction of a new structural steel canopy for the new blowers

PROJECT INFORMATION

  • Location: Morrison, TN

  • Date Completed (Estimated): December, 2023 

  • Contract Value of $3,863,859.77

  • Owner: West Warren-Viola Utility District  

  • Engineer: James C. Hailey & Company  

NOTABLE SPECS

  • Because this is a renovation to an operating facility, one of the two SBR basins must remain in service throughout construction. Sequencing of the equipment installation will require a staggered installation for each of the basins, rather than concurrent installation typical to new construction.

Rockfish Creek WRF

Rockfish Creek WRF

J Cumby Construction, Inc., will be responsible for the removal of three mechanical bar screens and the installation of four (4) new multi-rake style mechanical bar screens in the same channels plus one in the manual bar screen channel.

There will also be Demolition of existing screening compactors and installations of two belt conveyors for screenings removal to dumpster area, removal of grit influent and effluent manually operated isolation slide gates and replacement with electrically operated slide gates, as well as the installation of new grit train distribution channel isolation slide gate (with new electric actuator).

Additionally, there will be replacement of four influent bar screen isolation electric gate operators with new Contractor furnished operators, Installation of a new electrical equipment pad north of screen channels, demolition and replacement of two sodium hypochlorite storage tanks including demolition of the masonry knock-out walls and replacement with translucent wall panels, as well as the demolition and installation of new fine bubble diffuser grids in Aerated Sludge Storage Tank No. 3.

PROJECT INFORMATION:

  • Location: Fayetteville, NC

  • Date Completed (Estimated): July, 2022

  • Contract Value of $2,430,000

  • Owner: Fayetteville Public Works Commission, City of Fayetteville

  • Engineer: Hazen and Sawyer

NOTABLE SPECS:

  • This project improves the Liquids Train of Rockfish WRF

  • This project improves the Solids Train of Rockfish WRF

Jones Street Pump Station

Jones Street Pump Station

The existing Jones Street Pump Station was constructed in 1953 and conveys flow beneath the Tennessee River through a 24-inch diameter flexible joint iron pipe. Knoxville Utilities Board (KUB) has deemed the pump station is scheduled for a capital upgrade after a routine evaluation of its’ life cycle, due to its’ limited capacity and age.

In support of the upgrade, a new pump station with a depth of 47’ and associated facilities are planned for the new 1901 Jones Street site, approximately 500 feet south of the existing pump station. The project site is currently a combination of surface parking lot and storage area for natural gas tanks. The natural gas tank storage area is situated within the footprint of a former warehouse that has been razed. Remnant foundations for the warehouse remain.

As part of the project, a new 24-inch-dimeter force main will extend from the proposed pump station to the north toward the existing pump station. The force main then turns to the west and follows the river for approximately 960 feet, until turning north, crossing the Tennessee River and terminating at an existing manhole on the Tennessee Valley Authority (TVA) property. This project will be approximately 1,500 LF of force main that is time restricted from Jan. 1-Feb. 2.

In addition to all the aforementioned upgrades and new infrastructures, this site will also include: A New 42” Diameter Gravity Sewer, Marine Pipe crossing, approx. 200 LF of 6, 8 and 12-inch gravity sewer routing and, as well as, numerous other miscellaneous site improvements.

PROJECT INFORMATION:

  • Location: Knoxville, TN

  • Date Completed (Estimated): May 2022

  • Contract Value of $13,443,000+

  • Owner: Knoxville Utilities Board

  • Engineer: Jacobs

NOTABLE SPECS:

  • A 24” Force Main tie-in on the north side of the Tennessee River will be added

  • There will be a river crossing performed Late spring/early summer due to lower flows

  • There will be an implementation of a soil nailing shoring system, due to the inconsistent nature of subgrade rock

  • A Pump Station of 47’

ROCKFISH CREEK PUMP STATION AND STORAGE TANK

ROCKFISH CREEK PUMP STATION AND STORAGE TANK

J. Cumby Construction has been contracted by Fayetteville Public Works Commission to install a New Equalization Tank-consisting of a 2.5M Gallon Pre-stressed Concrete Storage Tank that’s 150 feet in diameter.

Moreover, J. Cumby will also be adding Flow Control Facilities that include a 36’ deep concrete pump station with a grinder pump, sump pump, pump, wet well and dry well; as well as, a 23’ deep concrete diversion structure with slide gates, weir gates and a vertical mounted deflection screen and much more.

Additionally, there will be approximately 700 LF of new 8” portable water line to be installed down ‘George Owen Road’, to feed the new pump station and equalization tank. There will also be approximately 320 LF of new 42” PVC station influent/effluent piping and precast manholes, that will tie into the existing 42” sewer line.

PROJECT INFORMATION:

  • Location: Fayetteville, NC

  • Date Completed (Estimated): April, 2022

  • Contract Value of $11,170,00+

  • Owner: Fayetteville Public Works Commission

  • Engineer: CDM Smith

NOTABLE SPECS:

  • This site is a “Green Field Construction” since a significant amount of clearing and grubbing had to be completed in order to be able to begin on the EQ Tank

  • There will be approximately 700LF of 8” portable water line installed

  • There will be approximately 320 LF of 42” PVC station influent/effluent piping and precast manholes tied into the preexisting sanitary sewer line

Gallatin- Industrial Park Pump Station

Gallatin- Industrial Park Pump Station

J. Cumby will be responsible for the construction of a Pump Station for the City of Gallatin, in order to accommodate a new corporate entity to the Gallatin area.

This pump station will reach a depth of over 40 feet. Due to the nature of this project, this job site will require heavily implemented safety measures to ensure an accident-free construction.

PROJECT INFORMATION:

  • Location: Gallatin, TN

  • Date Completed (Estimated): January, 2022

  • Contract Value of $2,800,000+

  • Owner: City of Gallatin

  • Engineer: James C. Hailey & Co.

NOTABLE SPECS:

  • This job site will be handled with the utmost precautions, in fact, they are required throughout the duration of the project. These safety precautions will be put into place to ensure that no one will be harmed during the construction of the pump.

Brush Creek WWTP Aeration Blower Replacement and Electrical Upgrade

Brush Creek WWTP Aeration Blower Replacement and Electrical Upgrade

The Brush Creek Wastewater Treatment Plant is the largest of the three owned and operated facilities of Johnson City. J. Cumby’s involvement with The WWTP Aeration Blower Replacement and Electrical Upgrades Project includes blower and electrical switchgear replacement as well as several other architectural improvements to the existing Equipment Building.

The aforementioned architectural improvements include door and window replacement, wall panel replacement, replacement of the existing roof covering and a complete interior painting. Most of the previous existing equipment was installed in the early 1970s and has reached its ‘useful’ service life.

Recent improvements have included demolition of existing aeration blowers, controls and air piping out to the aeration basin connections, installation of new blowers with control system and new overhead air piping out to the aeration basin connections, installation of two new MCCs in the chlorine room and new building entry. We also upgraded the HVAC system to meet code requirements in the blower area and RAS pump room and to provide air-conditioned space for electrical equipment, while maintaining system operation with maximum system outage of 3 hours

PROJECT INFORMATION:

  • Location: Johnson City, TN

  • Date Completed (Estimated): December, 2021

  • Contract Value of $5,218,423+

  • Owner: Johnson City

  • Engineer: CDM Smith

NOTABLE SPECS:

  • Brush Creek is the Largest of Three owned and operated facilities of Johnson City

MBWWTP Equalization Basin and Blower Replacement Improvements Project

MBWWTP Equalization Basin and Blower Replacement Improvements Project

J Cumby Construction, Inc., will be making modifications to the existing equalization basins to include construction of a dividing wall in each existing equalization basin, which is in excess of 7 acres each, to result in four (4) new basins at the end of construction, demolition of existing process equipment and installation of new diffusers, aerators, vertical turbine pumps, blowers, water cannons with associated piping and electrical infrastructure, demolition and renovation of portions of the plan blower building and a dilution water pump station. Additionally, there will be resurfacing and repairs made to the asphalt around the equalization basins.

Furthermore, there will be approximately 10,000 cubic yards of concrete needed in order to complete the project. In Addition, the City of Chattanooga will be coordinating with J Cumby to plan out phases in which the modifications will be completed. The City of Chattanooga is needing the equalization basins to remain operational throughout the project to ensure that the WWTP can meet the system demands, as well as making sure the project can be completed on time.

PROJECT INFORMATION:

  • Location: Chattanooga, TN

  • Date Completed (Estimated): August, 2023

  • Contract Value of $27,685,000+

  • Owner: City of Chattanooga

  • Engineer: Jacobs

NOTABLE SPECS:

  • Approximately 10,000 Cubic Yards of concrete will be required to complete this project

  • The Equalization basins are required to remain operational throughout the project

Fall Creek Falls WW PUMP STATION

Fall Creek Falls WW PUMP STATION

Bell and Associates Construction hired J. Cumby Construction for the rehabilitation of an existing wastewater pump station at Fall Creek Falls.

In the project, J. Cumby will be installing a new pump station access hatch, a by-pass pump around the existing pump station, new submersible pumps, new piping and a new valve vault with valves and pipes.

Additionally, J. Cumby will also be demolishing an existing sewer pump station and the existing solids storage tank, then filling it in with stone.

PROJECT INFORMATION:

  • Location: Fall Creek Falls, TN

  • Date Completed (Estimated): April, 2021

  • Contract Value of $250,000+

  • Owner: State of Tennessee

  • General Contractor: Bell & Associates Construction

  • Engineer: Barge, Cauthen, & Associates

NOTABLE SPECS:

  • Pump Station with a depth of 40’

BCCX WWTP EXPANSION

BCCX WWTP EXPANSION

Due to recent expansion to the existing complex and the absorption of prisoners from decommissioned prisons, the wastewater treatment plant at Tennessee Department of Correction’s detention facility at Bledsoe County could no longer meet the demand of the population. J. Cumby Construction has been selected to expand and improve the wastewater processing facility, doubling the plant’s processing capacity, adding redundancy to the system, and improving the processed water distribution system.

The expansion includes the addition of an Influent equalization basin, two sequencing batch reactor tanks with pump station, a post equalization basin, effluent filters, and a ten million gallon effluent storage tank with effluent pump station. Also included in the project scope is a control building expansion to accommodate electrical and mechanical component additions and a twenty acre effluent spray distribution field.

Project Specs:

  • Location: Pikeville, TN

  • Completion Date: Anticipated - March 2021

  • $15,000,000+ Contract Value

West Kingsport Pump Station

West Kingsport Pump Station

The City of Kingsport, to address the aging conditions of their waste water processing infrastructure, has selected J. Cumby Construction to rehabilitate their existing forty year old West Kingsport wastewater pump station and install a new sixteen inch PVC force main for processing.

To allow the existing pump station to be taken out of service, the project scope required the installation of three temporary pumps capable of 2,540 gallons per minute each. with temporary service in place, J Cumby Construction is constructing a new electrical building and a new equipment vault along with equipment, thirty feet below the main floor of the existing building. Also included is the installation of a 4,800 linear foot force main both along the edge of the Holston River and within the City of Kingsport’s park and greenway path. Approximately 400 linear feet of the force main required the use of bore and jack installation

PROJECT SPECS:

  • Location: Kingsport, TN

  • Completion Date: Anticipated February 2021

  • $5,963,000+ Contract Value

Tupelo Raw Water Supply Facilities - Contract A: Intake/Pumping

Tupelo Raw Water Supply Facilities - Contract A: Intake/Pumping

In an effort to reduce the negative environmental impact of water treatment and to provide a more reliable and higher quality water source to the region, the Northeast Mississippi Regional Water Supply District contracted J. Cumby Construction to construct a new water intake facility.

The new water intake facility is located in the Tenn-Tom waterway, which provides cleaner water which requires less chemical treatment than the Tombigbee River, where the previous intake facility is located.

This facility consists of a barricaded intake area with six large screened intakes, three 42” vacuum siphon pipes through the levee, a 6,000+ square foot pump house with chemical pre-treatment, 100,000+ gallons of water reservoirs, eight vertical turbine pumps with a combined 33,000+ gallons per minute capacity, and an elevated bridge, deck, and pipe support structure.

The new facility sits on land leased from the U.S. Army Corps of Engineers, across the river from Fulton, MS, and will service the needs of more than 100,000 residents of Northeast Mississippi.

Project Specs:

  • Location: Fulton, MS

  • Completion Date: February 2021

  • $16,970,000+ Contract Value

  • 2,800+ Yards of Concrete

  • 12,000+ Tons of Stone

Adams Field Water Reclamation Facilities Parallel Treatment

Adams Field Water Reclamation Facilities Parallel Treatment

To ensure water treatment operations can continue in high volume and wet weather conditions, Little Rock Water Reclamation Authority has Contracted J. Cumby Construction to increase the peak flow treatment capacity of its Adams Field Water Reclamation Facility.

This will be accomplished in, large part, by the addition of a 92,000 gallon per minute effluent pump station, and the construction of a new 23,000 square foot filtration building featuring MegaDisk pile cloth media and ultra violet disinfection equipment.

Additionally, J. Cumby will be renovating and upgrading equipment for three 1.8 million gallon secondary clarifier tanks, a 38,000 square foot aeration basin, and several other sewage treatment process components and structures to include aeration blowers, sludge pumps, electrical building, and miscellaneous water handling structures.

All facility improvements will increase the sewage processing capacity from around 25 to 94 million gallons per day, enabling the plant to absorb the heavy additional flows from significant rain events.

Project Specs:

  • Location: Little Rock, AR

  • Completion Date: September 2020

  • $28,000,000+ Contract Value

  • 5,000+ Yards of Concrete

  • 38,000+ Tons of Sand & Stone

Fairview Waste Water Treatment Plant Additions

Fairview Waste Water Treatment Plant Additions

The Water Authority of Dickson County, to increase overall plant capacity and introduce more efficient treatment methods, has contracted J. Cumby Construction to upgrade and add to the Fairview Wastewater Treatment Plant in a two phase operation. 

Phase one consists of the construction of new anoxic and anaerobic tanks to incorporate the use of both bubble aeration equipment and rotating mixers as well as a new headworks structure and associated underground piping and vaults. Also included in phase one are an electrical building secondary anoxic and re/air basins.

Phase two of the project includes renovation to the plant’s existing oxidation structure by adding jet aeration as well as the rehabilitation of disc aeration. A new 40’ clarifier, post aeration/UV disinfection structure, and nitrified recycle pump station will be added to the plant as part of phase two as well.

In all, the improvements will increase plant processing capacity to over 2.2 million gallons per day and create a more thorough and efficient treatment process.

Project Specs:

  • Location: Fairview, TN

  • Completion Date: August 2020

  • $5,700,000+ Contract Value

  • 1,300+ Yards of Concrete