At Carroll Engineering, we support wastewater systems at every stage, from underground sewer lines to pump stations and treatment plants. In simple terms, we design, permit, and help build the systems that move and treat wastewater. We work with municipalities, authorities, and private clients to deliver reliable, cost-conscious solutions designed for long-term performance.

Our Department

Carroll Engineering’s Water and Wastewater Services Department is led by Vice President Michael McCarey, P.E., who has been a driving force behind the firm’s water and wastewater practice.

Mike brings nearly two decades of hands-on experience managing complex infrastructure projects and serving as a trusted advisor to authorities and municipalities. Along with the rest of our team, he stays current on standards, equipment, and treatment technologies while focusing on being responsive, practical, and easy to work with.

We also collaborate closely across various disciplines, including survey, site planning, municipal, structural, traffic, and electrical subconsultant services, to ensure our designs are efficient, constructible, and built to meet each client’s needs.

Our Approach

We keep our approach practical and straightforward, focused on real-world results.

We work with clients to:

• Prioritize improvements based on system needs and budgets
• Develop solutions that are realistic to build, operate & maintain
• Maintain clear communication throughout the process

Early planning is key. Through feasibility studies and preliminary engineering, we help clients understand their systems, identify issues, and plan improvements in phases with clear cost expectations.

Project Spotlight:

North Union Pump Station, Lambertville Municipal Utilities Authority (Hunterdon County, NJ)

The North Union Pump Station conveys approximately 131,000 gallons per day of wastewater from the northern portion of the City of Lambertville to the Authority’s wastewater treatment plant.

Carroll Engineering completed the design of major upgrades to address operating deficiencies and improve flood resilience. Improvements included the replacement of on-site electrical systems, new submersible sewage pumps, a concrete wet well with a flood-proof hatch, valve vault, new piping, updated controls, standby generator, and hoist system.

Due to the station’s proximity to the Delaware River, critical equipment was relocated above the 500-year flood elevation on a new elevated platform.

Completed in June 2026, these improvements will help strengthen reliability, support long-term operations, and better protect essential wastewater infrastructure from future flood events.

Looking Ahead

One of the biggest emerging challenges is how to manage contaminants like PFAS. While treatment methods continue to improve, the long-term disposal of captured materials remains uncertain.

Currently, much of this material is sent to landfills, but future restrictions could change that. We stay current on these developments to help clients plan ahead and adapt as regulations evolve.

Let’s Build Together

Wastewater systems are critical, but they don’t maintain themselves. Whether you’re dealing with aging infrastructure, planning for growth, or evaluating your current system, Carroll Engineering is here to help.

Let Carroll Engineering help you with your next project. Contact Michael McCarey, P.E., VP at 215-343-5700 ext. 354 to get started, or email mmccarey@carrollengineering.com.