Why Mesothelioma Cases Occur in Newark
Leslie Salt Company operated the largest salt production complex on the San Francisco Bay, with evaporation ponds, crystallizing facilities, and processing plants covering thousands of acres in Newark and adjacent communities. The salt processing facilities used large industrial dryers, conveyor systems, steam heating equipment, and processing machinery that required asbestos insulation throughout. Maintenance workers, equipment operators, and the facility tradespeople who kept the processing equipment running faced asbestos exposure in the plant's industrial operations.
Newark's industrial zone along the Bayshore also hosted chemical manufacturing and industrial supply operations that used asbestos in their facility infrastructure. The proximity to the Southern Pacific rail line made Newark attractive for manufacturing and distribution operations, and the warehouses, processing facilities, and light manufacturing plants that developed along this corridor were built with asbestos-containing materials and used asbestos in their process equipment.
The 20-to-50-Year Latency Period
Mesothelioma has a latency period of 20 to 50 years. A worker exposed to asbestos at Newark facilities in the 1970s may only receive a mesothelioma diagnosis in 2025 or later. This is why Newark continues to produce new mesothelioma cases decades after asbestos use was restricted.
The Newark Unified School District and the city's residential developments expanded rapidly during the postwar period, generating significant construction activity using asbestos products that were standard in the building industry through the 1970s. Construction tradespeople who built Newark's schools, the Sycamore Park area, and the Cedar Boulevard commercial corridor installed asbestos-containing materials throughout these structures.
Newark's proximity to Fremont's industrial operations also meant that many Newark residents worked at nearby facilities — the GM Fremont Assembly Plant, Pacific States Steel in Union City, and other East Bay industrial employers — bringing home asbestos from workplaces throughout the Tri-City industrial area.
Newark's Asbestos Legacy by the Numbers
Leslie Salt's Newark operations were among the largest salt production facilities in the western United States. The salt processing and industrial drying operations used asbestos-insulated equipment throughout. California allows only 2 years from diagnosis to file a mesothelioma claim — one of the shortest deadlines in the nation. Documenting your asbestos exposure history is a critical first step.
