SIMPSON PAPER CO - Pulp and Paper Facility in Pomona, California

SIMPSON PAPER CO is a pulp and paper facility located at 100 ERIE ST in Pomona, Los Angeles County, California. The plant is operational and classified under NAICS codes 322120 (Paper Mills) and 322122 (Newsprint Mills), indicating a medium-to-large scale operation typical of the US pulp and paper sector. The facility operates under the US EPA's multi-media regulatory framework, which includes the Clean Air Act (CAA), Clean Water Act (CWA), Resource Conservation and Recovery Act (RCRA), and TRI Section 313 reporting requirements. As a pulp and paper plant, it likely uses chemical pulping or recycling processes, with associated air emissions (e.g., volatile organic compounds, particulate matter) and wastewater discharges requiring National Pollutant Discharge Elimination System (NPDES) permits. Located in Pomona, within the Los Angeles metropolitan area, the plant is situated in a region with high population density and industrial activity. Its environmental significance includes potential impacts on local air quality and water resources, as well as compliance with California's stringent state-level environmental regulations. The facility's role in the regional paper supply chain underscores its operational importance.

The facility is located in Pomona, California, within the South Coast Air Basin, which is designated as a non-attainment area for ozone and particulate matter under the Clean Air Act. Pulp and paper operations can emit criteria pollutants and hazardous air pollutants, requiring stringent air permits. Proximity to residential areas increases community exposure risks. Water use and wastewater discharge are regulated under the Clean Water Act, with potential impacts on local watersheds.