At Wessler Engineering, we work closely with community leaders and system operators to help identify their wastewater management needs and develop cost-effective, realistic solutions. This approach allows municipal officials to be proactive in their wastewater management and presents opportunity while managing risk.

Our Wastewater team is comprised of collections and treatment specialists, giving us the expertise and resources to provide wastewater services throughout your collection and treatment systems.  We have a breadth of experience in all aspects of the wastewater process.

Our team of collection system specialists have extensive experience collaborating with community officials to solve a variety of wastewater problems. In conjunction with our Field Services team, our Wastewater group conducts investigative work to identify and remedy wastewater collection issues by focusing on inflow and infiltration (I/I) reduction, addressing structural issues and restoring existing systems via trenchless rehabilitation of small, medium and large-diameter sewer systems. For new systems, our strategy is to design collection systems through detailed analysis of alternatives to generate optimal construction cost reduction while minimizing impacts to the community.

Our treatment specialists also have the experience and capabilities to design treatment and capacity upgrades based on a community’s need. Whether the focus is on revisions associated with regulatory/permit, capacity or replacement needs, we focus on leveraging existing infrastructure and new technologies to provide reduced capital and operational costs.  We perform process energy audits to increase plant capacity through improved operations without spending money on capital improvements. We also create asset management plans to inventory and evaluate the condition of a community’s infrastructure assets to allow municipal leaders to create a viable capital improvements plan so aging assets can be replaced in a financially sound manner.

Utilizing new and proven technologies, our team strives to provide innovative and cost-effective solutions in sewer extension design, existing sewer rehabilitation and wastewater treatment. Our goal is to maximize efficiency for our clients and provide expert knowledge and service through every step of the project process, no matter the size or complexity of the project.

Robert W. Holden, II, Ph.D., P.E., BCEE

Senior Vice President and Wastewater Group Head

Meet our Team

Our Services

Preliminary Engineering and Studies

  • Biosolids Handling Evaluations
  • Co-Generation and Fats, Oils, and Grease Receiving Evaluations
  • Feasibility Studies
  • Master Planning and Facility Plans
  • Sanitary Sewer Master Plans
  • System Development and Expansion Feasibility
  • Preliminary Engineering Reports (PER)
  • Office of Community and Rural Affairs (OCRA) Funding Format
  • Rural Development (RD) Funding Format
  • State Revolving Fund (SRF) Funding Format
  • Local Funding Format
  • USDA Funding Format

Design Services

  • Biosolids Dewatering & Handling Facilities
  • Expansion and Rehabilitation of Existing Wastewater Treatment Facilities
  • Force Main Design
  • Gravity Sanitary Sewer Design
  • Low-Pressure Sanitary Sewer Design
  • New Wastewater Treatment Facilities
  • Sludge Digestion and Class A Biosolids
  • Wastewater and CSO Pump Stations and Storage Facilities
  • Wastewater System Rehabilitation Design
  • Lift Station Improvements
  • Manhole Rehabilitation
  • Sanitary Sewer Rehabilitation

Additional Services

  • Bidding Assistance
  • Construction Administration and Observation
  • Field Services
  • Funding Guidance
  • Hydraulic Modeling
  • Land Application Guidance Manuals
  • National Pollutant Discharge Elimination System (NPDES) Permit Assistance
  • Permitting and Environmental Services
  • Post-Construction Warranty Assistance
  • Process Energy Audits
  • Regulatory Assistance
  • Sewer Use Ordinance Assistance
  • Wastewater Collection System Mapping/GIS Integration
  • WWTP Operations and Maintenance Assistance
  • WWTP Optimization, Troubleshooting and Compliance Assistance