RJN Group, Inc.

RJN Group, Inc. Named a Best Firm to Work For, RJN Group is a specialty engineering and field data collection firm.

RJN Group is a nationwide, professional engineering and pipeline condition assessment firm, specializing in the delivery of practical solutions for water and wastewater collection and distribution systems. For over 40 years RJN Group has set the standard for providing efficient and innovative solutions to the complex issues associated with the operation and maintenance of underground infrastructure.

📣 Preparing for the 2026 Collections Systems Exam?RJN is proud to sponsor the 2026 Illinois Collections Systems (IEPA) P...
09/04/2026

📣 Preparing for the 2026 Collections Systems Exam?

RJN is proud to sponsor the 2026 Illinois Collections Systems (IEPA) Prep & Test Event, giving wastewater professionals the opportunity to prepare, earn continuing education hours, and complete the IEPA Collections Systems Exam, all in one day!

Whether you're working toward certification or looking to advance your career, this event is a great opportunity to take the next step.

📅 October 29, 2026
📍 Downers Grove, Illinois
⏰ 7:15 a.m. – 4:30 p.m.
🎓 Earn 3.5 Continuing Education Hours 📝 Prep, review, and take the IEPA exam in one day!
👉 Registration is open! Register today: https://hubs.ly/Q04wfRWX0

P.S. Don’t miss this opportunity to prepare, connect with fellow wastewater professionals, and take the next step toward certification!

A look at a force main inspection from the field!This GoPro shot captures an upstream view of a force main discharge, f...
09/04/2026


A look at a force main inspection from the field!
This GoPro shot captures an upstream view of a force main discharge, followed by a look at our team catching the INGU Piper in action.

09/03/2026

Failures don’t have to be inevitable. Let us help you get ahead of problems and identify risks before they become costly emergencies. From the first inspection to long-term capital planning, RJN helps communities understand their infrastructure, prioritize investments, and keep wastewater systems moving.

Don’t wait for failure. Plan for prevention. Learn how RJN can help you today: https://hubs.li/Q04wxLxZ0

How can utilities better understand system performance across both wet and dry conditions?On September 17, National Prac...
09/03/2026

How can utilities better understand system performance across both wet and dry conditions?

On September 17, National Practice Leader, Daniela López, PE, will present at WaterJAM 2026, sharing how continuous simulation and groundwater infiltration hydrology are helping advance more resilient wastewater systems.

📍 Room 2B
🗓️ September 17 | 10:30–11:00 AM

Join Daniela to explore how a more integrated approach to wet-weather modeling can better support long-term resiliency and decision-making.

Register now: https://hubs.li/Q04w8tFT0

Please join us in welcoming our newest team members who joined RJN Group this August! 👋We’re excited to have Andrew Kiel...
09/02/2026

Please join us in welcoming our newest team members who joined RJN Group this August! 👋

We’re excited to have Andrew Kielbasinski, Jaden Jordan, Jonathan Granado, Margaret Fryer, Nathan Griego, Tayshawn Jones, and Yunus Musa on board and look forward to all they’ll bring to .

Welcome to RJN! 💙

Is AI-powered sewer CCTV defect recognition truly ready for prime time—or still more sizzle than steak?Principal Project...
09/02/2026

Is AI-powered sewer CCTV defect recognition truly ready for prime time—or still more sizzle than steak?

Principal Project Manager, Jeff Griffiths, PMP, will share this fast-paced 30-minute session at WaterJAM on a real-world results from a six-vendor evaluation of nearly 10,000 feet of pipe, coded against NASSCO PACP protocols, revealing where the technology delivers, where it falls short, and what utilities should consider before investing.

📍 September 16 | 9:30–10:00 AM | Room 1BC

Register now:
https://site.pheedloop.com/event/WaterJAM26/register

🎤 RJN will be at IAWA 2026!Join Patrick Hulsebosch, P.E., senior project manager, as he presents “Case Studies on the In...
09/01/2026

🎤 RJN will be at IAWA 2026!
Join Patrick Hulsebosch, P.E., senior project manager, as he presents “Case Studies on the Internal Inspection of Force Mains”

🕘 September 15 | 9:00–9:45 a.m.
📍 Holiday Inn & Suites Southwest | Joliet, IL
Register now: https://hubs.li/Q04w3Mrf0

P.S. 👀 Don’t miss Thomas Romza, P.E., who will also be attending IAWA 2026!

09/01/2026

How do you balance cost, constructability, and long-term performance?

In our latest thought leadership interview, Jacob Brumbaugh, PE, discusses why evaluating lifecycle costs, existing site conditions, and the challenges of future maintenance should all be part of the design process.

The goal? Make the best investment today while setting the utility up for success for years to come.

While performing manhole inspections, we met our newest field tech: Spider-Man! 🕷️He specializes in web development, man...
08/28/2026

While performing manhole inspections, we met our newest field tech: Spider-Man! 🕷️

He specializes in web development, manhole access, and hanging around on the job.

Happy !

🚰 Heading to Indianapolis for the AWWA Water Infrastructure Conference?Stephen Jeffus, PE, will be at the AWWA Water Inf...
08/28/2026

🚰 Heading to Indianapolis for the AWWA Water Infrastructure Conference?

Stephen Jeffus, PE, will be at the AWWA Water Infrastructure Conference & Exposition, August 30–September 2, in Indianapolis, IN!

If you're attending, be sure to connect with Stephen! We look forward to learning, sharing ideas, and connecting with fellow water professionals.

Address

2655 Warrenville Road, Suite 225
Downers Grove, IL
60515

Opening Hours

Monday 8am - 7pm
Tuesday 8am - 7pm
Wednesday 8am - 7pm
Thursday 8am - 7pm
Friday 8am - 7pm
Saturday 8am - 5pm

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