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Introduce a Girl to Engineering Day 2026
February 26, 2026 | Written by Natalie Schelling, PE, Associate and Project Engineer As the title suggests, the purpose of this initiative is to show girls the possibilities of engineering… Read More
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Project Spotlight: Rensselaer Wastewater Treatment Plant Improvements
The City of Rensselaer recently broke ground on a $19M construction project to make significant improvements to the City’s wastewater treatment plant. This project was established as a phase II… Read More
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EPA Lead & Copper Rule Improvements (LCRI): What Your Community Needs to Know in 2026
The Lead and Copper Rule Improvements (LCRI) is designed to protect public health by reducing lead exposure from drinking water. However, this rule also comes with many requirements for water… Read More
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Sludge Profiling for Wastewater Lagoons: Reduce Bid Risk & Cost Surprises
If you’ve ever planned improvements at a wastewater lagoon, you already know an uncomfortable truth: Sludge is the biggest unknown hiding in plain sight. It’s out of sight, difficult to… Read More
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Water and Wastewater Engineering Careers
Choosing a career in water or wastewater engineering offers a meaningful path for those passionate about engineering, the environment, and public health.
Featured
Commonwealth Announces Staff Promotions to Associate Program
PRESS RELEASE – INDIANAPOLIS, IN – January 22, 2025 – Commonwealth Engineers, Inc. (Commonwealth) announces the promotion of the following staff members in expanded leadership positions. Robyn Matthews, PE of… Read More
EPA
EPA Proposes CWA Section 401 Rule to Streamline Permitting, Unleash Economic Growth, and Protect America’s Waterways
U.S. Environmental Protection Agency (EPA) announced a proposed rule that would return Clean Water Act (CWA) Section 401 to its proper statutory purpose, protecting water quality while eliminating regulatory overreach that has… Read More
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The Advantages of Qualification-Based Selection (QBS) and Key Elements of a Strong Statement of Qualifications
When procuring professional services, selection based solely on price may seem cost-effective, but it often leads to higher long-term expenses. Qualification-Based Selection (QBS) offers a superior approach by prioritizing expertise,… Read More
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Required 2026 Water Loss Audits
As we head into the new year, it’s time to start thinking about water loss audits. Water utilities will once again be required to submit validated water loss audits in… 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.

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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.

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