Hunters Point Power Plant Closure and Cleanup
Dust Control (including naturally occurring asbestos)
Breathing airborne dust can be harmful to health both because of the dust itself and because of other materials that can become airborne with the dust. At the Hunters Point Site, those other materials could include naturally occurring asbestos (NOA) and metals. NOA and metals are present because portions of the former power plant were built on fill material. The fill includes local serpentine rock (which is the natural source of NOA and metals), which is present throughout the Bayview Hunters Point community and many other areas of California. For all of these reasons dust control is a high priority while soil disturbing work is underway. In addition, a protective cover is installed upon completion of each soil cleanup area to help project the community from airborne matter.
Depending on the work being performed, workers wear personal protective equipment such as gloves, goggles, overalls and respirators. These, and other worker safety practices at the site, satisfy all applicable requirements of the Occupational Safety and Health Administration (OSHA) and other regulatory agencies.
Below are examples of dust control methods used at the Hunters Point Site:
Due to the presence of NOA in the area, the remedy for the site included the installation of a protective cover upon completion of soil cleanup activities, as pictured below. A protective cover is now in place throughout the site, with the exception of Area H, which is a portion of the property that was never filled and never used for PG&E Power Plant operations. Area H, also pictured below, was reseeded with native plants.