Lima, Ohio – Wastewater Treatment Plant

Jones & Henry Engineers has been working with the City of Lima, Ohio, since 1930, assisting this long-term client with...
View Project!


Jones & Henry provides full services in wastewater collection, working with communities of all sizes to ensure proper planning and a sound wastewater collection system are in place to enhance public health.

  • Regulatory Issues
  • Master Planning
  • Rehabilitation/Replacement
  • New Technologies
  • Funding Assistance
  • Construction
  • Public Participation

Upon completion, a wastewater collection project designed by Jones & Henry provides you with an effective tool to aid in the development of your community and to protect the public health of your residents.

Infiltration/Inflow (I/I)



Infiltration/inflow (I/I) – or surface and groundwater that enters a system – greatly reduces the capacity of sewers to carry wastewater and can adversely affect the performance of a wastewater treatment plant. It’s also not uncommon for basement flooding or sanitary sewer overflows to occur because of I/I.

All sanitary sewer systems have I/I. The challenge is to reduce excessive I/I.



Jones & Henry can help a community address I/I problems in a cost-effective manner. Our experience with I/I has resulted in several solutions to different I/I problems including:

  • Equalization at the Wastewater Treatment Plant and in the System
  • Express Sewers
  • Foundation Drain Removal
  • In-Line Storage
  • Internal Sewer Grouting
  • Manhole Rehabilitation
  • Public Awareness Program
  • Sanitary Relief Sewers
  • Sewer Lining
  • Sewer Replacement



Jones & Henry provides full, tailored services to develop comprehensive programs to remove excessive I/I:

Data Collection:
  • Continuous Flow Monitoring
  • Smoke Testing Sewers
  • Dye Testing of Sewers
  • Visual Inspection
  • Manhole Evaluations
  • Camera Inspection
Preliminary Analysis:
  • Statistical Review of Wastewater Treatment Plant Flows
  • Review Ratio of Potable Water to Wastewater Flows
  • Analysis of Past Flooding Problems
  • Project Report and Recommendations
  • Review of Operating Problems Caused by I/I

Combined Sewer Overflows (CSO)


What are Combined Sewer Overflows?

Combined sewers convey both sanitary and storm flow. The combined storm and sanitary flow frequently exceeds the capacity of interceptor sewers and treatment plant and can cause overflows of untreated wastewater. These events are referred to as Combined Sewer Overflows (CSOs).



Jones & Henry has worked on CSO abatement for municipalities and sewer districts with populations ranging from 3,000 to 500,000. The firm has encountered practically every conceivable situation and performed many tasks required for a successful program.

We are highly experienced in preparing plans, assisting during construction, preparing O&M materials, and training personnel in the operation and control of CSO abatement facilities. Jones and Henry’s CSO abatement planning results in programs that can be implemented without overwhelming municipal finances.



Jones & Henry is experienced in providing all the services necessary to arrive at an appropriate CSO abatement plan and the design of required facilities, including:

  • CSO system inventory and mapping
  • Metering and sampling
  • Model development
  • Water quality impacts
  • Financial capability analysis
  • Plan preparation, including proposed schedules
  • Assistance with permit and schedule negotiations
  • Public participation
  • Design of improvements
  • Engineering during construction
  • Start-up assistance
  • Personnel training




Providing effective wastewater treatment is one of the greatest challenges facing public and private entities today. Ever-changing regulations covering effluent quality and residuals, the need to negotiate National Pollutant Discharge Elimination System (NPDES) permit conditions, and the fact that public entities often have to respond to the needs of local industries make wastewater treatment especially difficult.

Realistically, the challenges associated with wastewater treatment never disappear – but that doesn’t mean they’re impossible to mitigate.


Wastewater as a Resource

Our approach to wastewater treatment is to view wastewater as a resource.

Treated effluents can often be used as cooling water or for irrigation, while residuals are often used to generate methane or land applied as fertilizer. The value of the resource varies widely based on the extent of treatment required, on the local cost of fresh water, and the need for soil amendments –we will work your unique needs so that properly-treated wastewater and residuals resulting from treatment are operationally utilized by their communities and local industries.



Jones & Henry has extensive experience in all kinds of domestic and industrial wastewater treatment and residuals treatment, disposal or utilization. This includes:

  • Planning for wastewater treatment
  • Evaluation of treatment processes including pilot studies
  • NPDES permit negotiations and public participation
  • Design of facilities
  • Assistance during construction and start-up
  • Operation and maintenance
  • Financial planning including grant procurement
  • Nutrient removal
  • Wet weather treatment
  • Treatment Plant Modeling

Residuals, Energy Efficiency & Biogas



As many municipalities explore alternative energy sources for their wastewater treatment plants, many have turned to anaerobic digestion and other residuals as viable solutions.

Anaerobic digestion occurs when microorganisms break down biodegradable material like sewage sludge, creating biogas. Biogas can either generate heat and electricity when it is combusted or be processed into renewable transportation fuels and natural gas.

There is a growing concern over the cost-effective treatment and environmentally responsible use of residuals. New regulations on biosolids disposal and air emissions, coupled with the dwindling capacity of landfills, have forced many communities and industries to consider new and improved management methods.

The only way to overcome this is through a well-planned approach for residuals management, which Jones & Henry specializes in.


Residuals as a Resource

Residuals can be assets – resources, even. We have developed numerous programs based on the use of biosolids on agricultural land. We also develop methane-fueled systems which generate and use methane derived from the anaerobic digestion of biosolids.



Jones & Henry has helped many clients develop residuals management systems. Over the years, our professional staff of engineers and certified operators has gained considerable experience in pilot testing, designing, optimizing, and troubleshooting residual solids programs.

Our experienced, competent staff members will identify the methods or approaches that need to be implemented to enhance energy management in operating facilities and determine payback methods.


Jones & Henry provides the services needed to develop and implement practical and sound management programs. We also have the technical background to develop innovative approaches.

Our services include:

    • Evaluating alternative solutions
    • Selecting alternatives during the design phase
    • Ensuring a functional, reliable, economical, and operable facility

    • Optimizing and troubleshooting problems
    • Preparing residual management plans

    • Designing anaerobic digestions systems
    • Designing digester gas utilization and handling systems

In summary, we can offer you a complete range of services to design and implement an effective residuals management system.

Contact Jones & Henry

If you're interested in our Wastewater services, please reach out to schedule a conversation!