CalPortland Company Cement Plant in Glendora, California | Industrial Utilities

CalPortland Company is a cement plant located at 2025 E. Financial Way in Glendora, Los Angeles County, California. The facility is operational and classified under NAICS 327310 for cement manufacturing, indicating a medium-to-large scale operation typical of the region's construction materials sector. The plant operates under the US EPA's multi-media regulatory framework, including the Clean Air Act (CAA) for emissions, Clean Water Act (CWA) for water discharges, and RCRA for waste management. As a cement facility, it likely utilizes dry or wet kiln processes with raw material grinding and clinker production, common in California's cement industry. Cement plants are significant for their role in infrastructure development but also have environmental implications due to energy-intensive processes and emissions. CalPortland's location in Glendora places it near urban areas, necessitating compliance with state and federal air quality standards to mitigate community impacts.

Cement production is inherently pollution-intensive, with primary emissions including particulate matter, nitrogen oxides, sulfur dioxide, and carbon dioxide from kiln operations. The plant's proximity to the Los Angeles metropolitan area increases the importance of stringent emission controls under the South Coast Air Quality Management District. Water usage for cooling and dust suppression may also be regulated under the Clean Water Act.