50 Years of Engineering and Consulting
Service Excellence

Biden-Harris Administration Finalizes First-Ever National Drinking Water Standard to Protect 100M People from PFAS Pollution
As part of the Administration’s commitment to combating PFAS pollution, EPA announces $1B investment through President Biden’s Investing in America agenda to address PFAS in drinking water April 10, 2024… Read More
Portage Breaks Ground on WWTP Improvements
The City of Portage, IN breaks ground on the Wastewater, Solar Screen, and Clarifier Improvements Project on Tuesday, March 26, 2024.
Dean Bruce Retires as Council Member for the Town of Spencer, IN
Dean Bruce retires as a Council Member for the Town of Spencer, IN after 30 years of service. The Town honored his service on March 15, 2024.
All CSO communities must file the following notice in their local newspaper of highest publication every March according to 327 IAC 5-2.6(1).
Planning to build in a FEMA-defined Floodway?  What Local Floodplain Administrators Need to Know About FEMAs No-Rise Certification.
The IDNR outlines information and regulatory requirements for the Federal Emergency Management Agency’s (FEMA’s) defined floodways.
Reminder: Annual Pretreatment Report Due to IDEM by April 1st
Annual Industrial Pretreatment Reports are due to IDEM by April 1, 2024. We are available to help your community submit these reports.
Meeting Regulatory Obligations: Indiana MS4 General Permit Annual Report Deadline Approaching
Indiana’s MS4 General Permit Annual Report is due by April 1, 2024. Commonwealth is available to assist your community submit this report.
Lt. Gov. Crouch, OCRA Announce 13 Communities to Receive Over $8 Million in Federal Grants
Lt. Gov. Crouch and OCRA announced that 13 Indiana rural communities will receive over $8 million of funding for water infrastructure.
Commonwealth Announces Promotions
Commonwealth Engineers, Inc. announces 2024 promotions for two of our engineering staff who will be stepping into leadership positions.
Years Experience
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focus on water resources
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acceptance of planning documents, plans, and specs for permitting & funding

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 Rehabilitation Owensboro, Kentucky

Wastewater Treatment Plant Rehabilitation Project Need Upgrade oxidation ditches to BNR process with turbo blowers Rehabilitation of structures & process equipment, including concrete tanks, clarifier equipment, pumps, the UV system,… Read More

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

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