Holcim (US), Inc./Former Holnam Cement Plant in Lehi, Utah

Holcim (US), Inc./Former Holnam is a cement plant located at 8050 North 7400 West in Lehi, Utah, United States. The facility operates under NAICS code 327310 (Cement Manufacturing) and is part of the global Holcim group, one of the largest cement producers worldwide. The plant serves the construction industry in the Intermountain West region. As a cement plant, the facility involves energy-intensive processes including raw material grinding, clinker production in rotary kilns, and finish milling. The plant is subject to US EPA regulations under the Clean Air Act (CAA) for emissions of particulate matter, nitrogen oxides, and sulfur dioxide, as well as the Clean Water Act (CWA) for process water discharge. It also reports to the Toxics Release Inventory (TRI) under Section 313 for certain chemicals. The plant's location in Utah places it within a region with growing urban development, particularly along the Wasatch Front. Cement production is essential for infrastructure projects, but the process is associated with significant CO2 emissions from calcination and fuel combustion. The facility's operational status indicates ongoing contribution to local construction supply chains.

The plant is situated in Utah's semi-arid climate, where water resources are limited and air quality can be affected by inversions in the nearby Salt Lake Valley. Cement manufacturing releases particulate matter, nitrogen oxides, and carbon dioxide, which may impact local air quality. Proximity to residential areas in Lehi and surrounding communities necessitates compliance with state and federal air permits. The facility's water use and discharge are regulated under the Clean Water Act, with potential impacts on local watersheds.