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Water & Waste

MB WWTP EQ Basin and Blower Replacement

MB WWTP EQ Basin and Blower Replacement

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

West Warren Viola Utility District

West Warren Viola Utility District

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

Gallatin WWTP Digester #5 Modifications

Gallatin WWTP Digester #5 Modifications

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.

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

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.

Rockfish Creek PFF

Rockfish Creek PFF

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

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’

Fall Creek Falls Sewer Pump Station

Fall Creek Falls Sewer 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’

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

Citico Pump Reliability Improvements

Citico Pump Reliability Improvements

In an effort to comply with EPA regulation, the City of Chattanooga, TN has contracted J. Cumby Construction to conduct reliability improvements at the Citico Pump Station, eliminate single points of failure in the electrical system, and ensure high water pumping capacity in the event of emergency.

Improvements will consist first of a new emergency backup pump station with a diversion chamber and slide gates for routing emergency overflows, three new grinding units, two new submersible pumps, and an overhead crane system. Also installed will be a new permanent backup generator, a new redundant electrical service to the site with switchboards and switchgear, and a new odor control system for the entire station.

This project is one of more than eighty separate projects planned to eliminate overflows into the Tennessee River and will provide 45 million gallons per day of processing capacity to the site while allowing continued operation in emergency and high water events.

  • Customer: City of Chattanooga, Tennessee

  • Location: Chattanooga, TN

  • Completion Date: November 2018

  • $10,423,000+ Contract Value

Kingsport Raw Water Intake Facility

Kingsport Raw Water Intake Facility

To ensure the reliability and cleanliness of the Kingsport area’s water supply continues for years to come, the City of Kingsport contracted J. Cumby Construction to completely rework the method of water supply to the water treatment plant.

The project consisted largely of the construction of a 24-foot-wide by 38-foot-deep intake well, a 7.5-foot-wide and 1,100-foot-long tunnel under the bluff to the water plant, and a new 22-million-gallons-per-day capacity pump station. The new process allows gravity to carry water from the south fork of the Holston River to the treatment plant where 4 identical pumps lift the water to the plant, safeguarding against single point mechanical failure. This replaces the existing system of pumping water up and over an 85-foot-high bluff with piping exposed to mountain weather conditions. Several other piping, electrical, and controls upgrades were completed as well, including a 2,500 kW emergency backup generator.

This project is the culmination of a process that began in 2010 with as mater plan to modernize a water supply system that dates to the 1920s and hasn’t been updated since the 1970s. Initially budgeted at 15 million dollars, J. Cumby Construction completed the upgrades slightly over 13.5 million.

Project Specs:

  • Location: Kingsport, TN

  • Completion Date: July 2017

  • $13,500,000+ Contract Value

  • 1,100+ Feet of Tunnel

  • 12,000+ Tons of Stone

Bledsoe County Correctional Complex - Waste Water Treatment Expansion

Bledsoe County Correctional Complex - Waste Water Treatment 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

Springfield WTP High Service Pump Upgrade and Hillcrest Pumping Station

Springfield WTP High Service Pump Upgrade and Hillcrest Pumping Station

Project Description (if new project): Building a new clearwell and installing new pumps at the

clearwell and Hillcrest pump station location.

Major Activities: Install new pumps at the Hillcrest pumping station, building a new clearwell,

and installing new high service pumps.

Location: Springfield, TN

Date Completed (Estimated): September 9th, 2025.

Contract Value: $10,870,750.00

Owner: City of Springfield, Tennessee

Engineer: Griggs & Maloney

2020 EDA Water Improvements, Oneida TN

2020 EDA Water Improvements, Oneida TN

Water Treatment Plant addition of Sedimentation/Flocculation Basin, Sludge Pump Station, modifications to existing raw water basins; meter vault, 16” raw water line, 8” basin drain line, 2'“ water line Major Activities: Cast-in-place concrete for sedimentation basin. Process piping ductile iron pipe and valves. Yard piping ductile iron pipe and valves. Tube settlers and trough system. Mechanical flash mixers. Vertical paddle flocculation equipment. Submersible feedwater pumps. Sludge pump station. Adjustable speed submersible mixers. Stainless steel gates. New electrical building. Instrumentation and Control for sedimentation basin. Upgrade to existing PLC.

Notable Specs:

Location: Oneida, TN

Date Completed (Estimated): 4/24/2025

Contract Value: $5,851,340.00

Owner: Town of Oneida

Engineer: GRW Engineers, Inc.

Lewisburg, TN Hwy 50 Sewer Pump Station Improvements

Lewisburg, TN Hwy 50 Sewer Pump Station Improvements

New pumps, piping, valves, precast, interior wet well lining, new fencing, and electrical.

Major Activities: Wet Well Interior Lining System

Project Specs:

Location: Lewisburg, TN

Date Completed (Estimated): 2-10-24

Contract Value:  $499,000

Owner: City of Lewisburg, TN

Engineer: Wauford


Kingsport TN High Service Pump Station Upgrade

Kingsport TN High Service Pump Station Upgrade

Construction of a new electrical building to support the High Service Pump Station, installation of a new High Service Pump No. 4, improvements to the High Service Pump Station, and other Work indicated in the Contract Documents.


Major Activities: 

Installation of new High Service Pump No. 4. Construction of new electrical building.

Project Specs:

Location:Kingsport, TN 

Date Completed (Estimated): 8/12/2025

Contract Value: $7,752,100.00

Owner: City of Kingsport 

Engineer: CDM Smith


1R Sewer Lift Station Improvements

1R Sewer Lift Station Improvements

Pump Station Rehabilitation

Major Activities:

- Replacement of existing pumps, piping, motors, motor shafts, valves, VFDs, control panels, generator

- Demolition, removal, installation and modifications of existing concrete

- Addition of odor control system

Notable Specs:

Pump station will be bypassed during replacement of pumps and other construction activities. This force main that feeds the pump station is the main feed of the Nissan Plant located in Smyrna Tennessee.

Location: Smyrna, TN

Date Completed (Estimated): October 2024

Contract Value: $4,271,000.00

Owner: Town of Smyrna

Engineer: Thomas and Hutton