TAMCO Primary Metal Facility, Rancho Cucamonga, California

TAMCO is a primary metal facility located at 12459 Arrow Highway in Rancho Cucamonga, San Bernardino County, California, United States. The plant is operational and classified under NAICS codes 331110 (Iron and Steel Mills and Ferroalloy Manufacturing), 331111 (Iron and Steel Mills), and 531390 (Other Activities Related to Real Estate). As a primary metal facility, TAMCO is part of the industrial utilities sector that processes raw materials into metal products. The facility operates within the regulatory framework of the United States Environmental Protection Agency (EPA), which enforces multi-media 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 California, additional state-level regulations from the California Air Resources Board (CARB) and the State Water Resources Control Board apply. Primary metal facilities like TAMCO typically involve energy-intensive processes such as melting, casting, and forming, with potential emissions of particulate matter, metals, and greenhouse gases. TAMCO's location in Rancho Cucamonga places it within a region with a mix of industrial and residential areas. The facility's operations contribute to the local economy and supply chain for metal products. Environmental significance includes compliance with stringent California emissions standards and waste management practices. The plant's proximity to communities necessitates careful monitoring of air and water quality to minimize environmental impact.

The primary metal sector, including facilities like TAMCO, is associated with significant pollution intensity due to energy consumption and emissions of particulate matter, sulfur dioxide, nitrogen oxides, and heavy metals. In California, strict regulations under the California Environmental Quality Act (CEQA) and local air districts impose rigorous permitting and monitoring requirements. The facility's location in San Bernardino County, which experiences high ozone levels, means that air quality management is a critical concern. Community proximity to industrial operations requires adherence to buffer zones and emission controls to protect public health.