Committed to protecting water quality and, more generally, quality of life.
We work in partnership with our clients, serving the communities in which we live and work.

Biden-Harris Administration Proposes to Strengthen the Lead and Copper Rule to Protect All Communities in America from Lead in Drinking Water
November 30, 2023, U.S. EPA Press Office ( EPA proposal would accelerate progress toward achieving President Biden’s goal of removing 100% of lead pipes. WASHINGTON – Today, the U.S. Environmental Protection… Read More
The Benefits of Qualification-Based Selection and what to look for in a Statement of Qualifications
When looking for professional services, price-based selection may seem to be the best approach, but that is not usually the case. Instead, utilizing Qualification-Based Selection (QBS) usually results in the… Read More
Project Highlight: Evansville Water and Sewer Utility – Wansford Yard Lift Station
The City of Evansville is currently constructing a new 20 MGD Lift Station at the old Wansford Yard Railroad Facility. This is known as the Wansford Yard Lift Station, and… Read More
Commonwealth Leaders
Recommendations to a Graduating Civil or Environmental Engineering Student
A Civil or Environmental Engineering program’s senior year is full of excitement and stress for many students. Most days and nights are spent catching up on homework, prepping for exams,… Read More
What is a Water System Management Plan?
A water system management plan (WSMP) is a document that outlines a public water system’s technical, managerial, and financial capacity to operate sustainably. It is required by the Indiana Department… Read More
GRANT Program Provides Funding to 41 Counties in Kentucky
The Kentucky General Assembly recently passed House Bill 9 to provide economic relief to communities in Kentucky. The bill creates the Government Resources Accelerating Needed Transportation (GRANT) program, which aims… Read More
Project Spotlight – Brownsburg, IN East Plant Improvements
The Town of Brownsburg recently completed the second phase of its East Plant (Pre-Treatment and Pumping Facility) Improvements project. Commonwealth’s Senior Project Manager, Darren Wells, provided design, permitting, bidding, and construction… Read More
South Bend Grand Opening Celebration
South Bend, IN Commonwealth Engineers held a grand opening celebration of our new South Bend Regional Office on Thursday, October 12. The event included an Open House and a Ribbon… Read More
Time to Think About Winterization?
Pumpkin spice is in the air and that can only mean one thing: it is time to think about winterizing our water and wastewater utilities. Some maintenance is better done… Read More
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Water Resource Engineering & Consulting Services

Since 1974, Commonwealth Engineers has been the consultant of choice by a broad cross-section of clientele, including cities, towns, municipalities, private sector and commercial clients. Our core team of engineers, scientists, regulators, and designers are specialized to solve your most pressing matters related to wastewater, potable water, stormwater, sustainable infrastructure, dams, levees, waterways, site civil, and energy-saving systems.



No matter your need, you can count on project support from our staff from start to finish, and even beyond! Every project is assigned a Project Manager, Funding Specialist, Regulatory Specialist, Project Engineer, and Designer…all accompanied by our business development staff keeping you connected to the right person, at the right time, every step of the way.

We are here to help, contact us today! 



We’re invested in the communities in which we live and work. Like you, we want our families to live in a sustainable, healthy environment with a state-of-the-art infrastructure that is affordable and supportive of job growth for generations to come.

Wastewater Treatment Plant Improvements – Greenfield, Indiana

Project Need Originally constructed in the 1960s, updated and expanded through the 2000s Includes one (1) main activated sludge wastewater treatment facility and two (2) trains of Actiflo high-rate settling… Read More

West Side Interceptor Improvements – Richmond, Indiana
Project Highlights Replace gravity sewers Collection system improvements Reduce combined sewer overflows Project Description The Richmond Sanitary District recently finished constructing over $6 million in collection system improvements, which involved… Read More
Wastewater Treatment Improvements – Syracuse, Indiana
The Problem Commonwealth was hired to investigate and provide solutions to an underperforming wastewater treatment system for their oxidation ditches, which was also impacting performance in their clarifiers, requiring frequent… Read More
Potable Water
Water System Improvements – Flora, Indiana
Water System Improvements Town of Flora, Indiana Commonwealth Engineers worked with the Town of Flora on a two-part project to make improvements to their water system. Division “A” – Water… Read More
Long Term Control Plan Improvements – Crown Point, Indiana
Commonwealth Engineers performed a Long Term Control Plan improvements for the City of Crown Point. It included: ANDERSON POND PROJECT The Crown Point Anderson Pond Project is a Long Term… Read More
Long Term Control Plan & Sewer System Modeling – Madison, Indiana
Long Term Control Plan & Sewer System Modeling City of Madison, Indiana Commonwealth Engineers performed a Value Engineering / Alternatives Assessment of the City’s CSO Collection System Improvements Project. Coordinated… Read More
Potable Water
Water System Improvements Project – West Terre Haute, Indiana
A Preliminary Engineering Report and Environmental Report were conducted to address West Terre Haute’s water system concerns.  Reports were completed in compliance with USDA Rural Development/State Revolving Fund Standards to… Read More
Long Term Control Plan Improvements Project – Nappanee, Indiana
Long Term Control Plan Improvements Project City of Nappanee, Indiana CSO Interceptor and Wet Weather Treatment and Storage Facilities Project This project provides collection and treatment of excessive combined sewage… Read More
Wastewater Treatment Plant Improvements – Fairmount, Indiana
Wastewater Treatment Plant Improvements Town of Fairmount, Indiana Commonwealth Engineers, Inc. performed value engineering and construction oversight/inspection for the noted WWTP Improvements Project. Efforts commenced with our Value Engineering (VE)… Read More
Crown Point Sewer Improvements Project – Crown Point, Indiana
Crown Point Sewer Improvements City of Crown Point, Indiana As part of the Long Term Control Plan, the City of Crown Point continues to find grant funding and savings options… Read More

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