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.

John Hodge of the Town of Spencer is named 2023 Wastewater Operator of the Year
John Hodge of the Town of Spencer has been named the 2023 Wastewater Operator of the Year by the Alliance of Indiana Rural Water. The award was presented on March… Read More
EPA is proposing the first-ever national standard to limit PFAS in drinking water
News Release: Biden-Harris Administration Proposes First-Ever National Standard to Protect Communities from PFAS in Drinking Water March 14, 2023 Contact Information – EPA Press Office ( WASHINGTON – Today, the Biden-Harris… Read More
Commonwealth Announces Staff Promotions
Commonwealth Engineers, Inc. (Commonwealth) announces the promotion of the following staff members to expanded leadership positions. PROMOTED TO ASSOCIATES PROGRAM – Darren Wells, PE, BCEE, ENV SP of the Indianapolis… Read More
Biden-Harris Administration Announces $2.4 Billion for Clean Water Infrastructure Upgrades Through the Bipartisan Infrastructure Law
Nearly half of funding for states, Tribes, and territories is available as grants and forgivable loans for critical water infrastructure projects that will help underserved communities across the country February… Read More
2023 Update to EPA Clean Water Act Financial Capability Assessment Guidance
On February 1, 2023, the US Environmental Protection Agency (EPA) announced an update to its Clean Water Act (CWA) Financial Capability Assessment (FCA) Guidance. The updated Guidance provides an expanded… Read More
Commonwealth Engineers Announces New Office Location in South Bend, IN
Since 1974, Commonwealth Engineers, Inc. (Commonwealth) has been a leader in the water resource industry throughout the State of Indiana, and more recently also expanding into Kentucky. Our focus has… Read More
Lt. Gov. Crouch, OCRA Announce Grant Opportunity for Indiana Main Street Communities
FOR IMMEDIATE RELEASE Feb. 20, 2023 Lt. Gov. Suzanne Crouch and the Indiana Office of Community and Rural Affairs today announced the Taking Care of Main Street grant program is now… Read More
Project Highlight: Newburgh Lift Station 2 Sub-Basin Recalibration Study
Commonwealth Engineers, Inc. (Commonwealth) recently completed a hydraulic modeling study on the Town of Newburgh’s sanitary sewer system. The purpose of the study was to verify previously identified sanitary sewer… Read More
Lead Service Line Inventory Requirements and $15 Billion in Available Funding
Historically, prior to the early 1980s, lead and copper were common materials used in plumbing supplies.  However, exposure to lead and copper can yield health problems. Children are most vulnerable to… 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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