Master Block Inc Cement Plant - El Mirage, Arizona Industrial Utilities

Master Block Inc is a cement plant situated at 12620 W Butler Dr in El Mirage, Arizona, within Maricopa County. The facility is operational and serves the local construction industry by manufacturing cement and related concrete products. As a cement plant, it falls under NAICS codes 327310 (Cement Manufacturing), 327331 (Concrete Block and Brick Manufacturing), and 327390 (Other Concrete Product Manufacturing), indicating a diversified production scope. The facility operates under the regulatory framework of the United States Environmental Protection Agency (EPA), which enforces multi-media environmental regulations including the Clean Air Act (CAA), Clean Water Act (CWA), Resource Conservation and Recovery Act (RCRA), and Toxics Release Inventory (TRI) Section 313 reporting. In Arizona, the Arizona Department of Environmental Quality (ADEQ) also oversees state-level permits and compliance. Cement plants are typically subject to stringent emissions limits for particulate matter, nitrogen oxides, and sulfur dioxide, as well as requirements for hazardous waste management and water discharge. Master Block Inc plays a significant role in the local economy by supplying essential materials for infrastructure and building projects in the Phoenix metropolitan area. The plant's location in El Mirage places it within a growing industrial corridor, contributing to regional development. Environmental considerations for cement plants include energy-intensive processes and potential emissions, which are managed through regulatory compliance and industry best practices.

Cement plants like Master Block Inc are significant sources of industrial emissions, including particulate matter, nitrogen oxides, and carbon dioxide, due to the high-temperature calcination process. The facility's location in Maricopa County, Arizona, places it in a region with arid climate and occasional air quality challenges, particularly for ozone and particulate matter. Proximity to residential areas in El Mirage necessitates careful management of dust and emissions to minimize community impact. Regulatory oversight by the EPA and ADEQ ensures adherence to emission limits and reporting requirements under the Clean Air Act.