Better information about your collection, water, and stormwater systems
Explore ClarityRJN Group, Inc., established in 1975, is a professional engineering and specialty field services firm focused on providing cost-effective and innovative municipal infrastructure engineering solutions. Always driven by client goals, our services have delivered economical and sustainable results to improve the integrity, service life, and performance of sewer, water, and storm collection, conveyance, and distribution systems for more than 45 years.
Richard J. Nogaj forms RJN Environmental Associates, Inc. in Illinois.
Richard J. Nogaj forms RJN Environmental Associates, Inc. in Illinois.
RJN develops computer analysis of sanitary sewers (CASS) software for DEC PDP 11 Mini-Computer.
RJN develops computer analysis of sanitary sewers (CASS) software for DEC PDP 11 Mini-Computer.
Begin self-performing all field services – vertical integration model is formed.
Begin self-performing all field services – vertical integration model is formed.
RJN pioneers dual blower smoke testing.
RJN pioneers dual blower smoke testing.
First branch office is opened in College Park, Maryland.
First branch office is opened in College Park, Maryland.
First year in ENR Top 500 Design Firms.
First year in ENR Top 500 Design Firms.
First year RJN exhibits at WEFTEC (WPCF Conference).
First year RJN exhibits at WEFTEC (WPCF Conference).
RJN acquires McCullough Associates of Texas and opens a regional office in Dallas.
RJN acquires McCullough Associates of Texas and opens a regional office in Dallas.
The RJN Foundation is formed.
The RJN Foundation is formed.
RJN purchased Richard J. Nogaj’s stock and becomes employee owned.
RJN purchased Richard J. Nogaj’s stock and becomes employee owned.
Al Hollenbeck is appointed President and CEO of RJN.
Al Hollenbeck is appointed President and CEO of RJN.
RJN’s Hamestring Lift Station project for the City of Fayetteville is awarded the 2009 Top Water and Wastewater Project by Water and Waste Digest.
RJN’s Hamestring Lift Station project for the City of Fayetteville is awarded the 2009 Top Water and Wastewater Project by Water and Waste Digest.
RJN is first recognized as a Top 50 Trenchless Design Firm by Trenchless Technology.
RJN is first recognized as a Top 50 Trenchless Design Firm by Trenchless Technology.
RJN’s West Park Wet-Weather Storage Facility project for the Village of Wilmette is awarded the APWA National Project of the Year.
RJN’s West Park Wet-Weather Storage Facility project for the Village of Wilmette is awarded the APWA National Project of the Year.
RJN launches Clarity® Data Management Hub.
RJN launches Clarity® Data Management Hub.
Jeff Plymale is appointed President and CEO of RJN.
Jeff Plymale is appointed President and CEO of RJN.
Clarity® Data Management Hub is awarded Water Environment Federation's Innovative Technology Award.
Clarity® Data Management Hub is awarded Water Environment Federation's Innovative Technology Award.
RJN becomes 100% employee owned.
RJN becomes 100% employee owned.
RJN has 22 office locations in 12 states across the country.
RJN has 22 office locations in 12 states across the country.
Paul Costa is appointed President and CEO of RJN.
Paul Costa is appointed President and CEO of RJN.