As groundwork wraps up, CGRS begins installing fueling system & undergound utilities for Longmont RNG project

The CGRS Construction Services team has battled a cold, snowy winter to prepare a solid foundation for the City of Longmont’s Wastewater Treatment Plant (WWTP) Biogas Treatment and Renewable Natural  Gas (RNG) Fueling Station Project.

And despite the wet, gloomy and sometimes snowy spring – making for wet, muddy conditions – the team:

  • Completed the foundation
  • Installed and tested the first phase of the RNG pipeline, which will transport treated biogas from the WWTP to the RNG Fueling Station
  • Installed underground utilities including water and sanitary piping
Longmont RNG Project - CGRS
Longmont RNG Project - CGRS
Longmont RNG Project - CGRS

CGRS crews have set and connected piping to the sand/oil interceptor (top left photo), which is a below-ground tank designed to capture dirt, sand and small amounts of petroleum to keep them from entering the City’s wastewater system.

A fire hydrant has been installed on the site and will soon be operational (top right photo).

“Often, the underground utility and foundation work receive less notice than the vertical construction in building construction,” says Eric Vaughan, CGRS Construction Services manager who is also serving as Project Manager for the Longmont project. “However, these systems are critical to the project and our crews take pride in the work they do.”

Next up for the project:

  • Placing the electrical conduit underground to provide power to the future RNG Fueling Station equipment
  • Installing the remainder of the RNG pipeline
  • Preparing the building for its concrete floor

Learn more about the project by visiting or visit this blog regularly for updates on the project’s progress. For additional information, call 800.288.2657.