The Asbestos Airborne Toxic Control Measure for Construction, Grading, Quarrying, and Surface Mining Operations (Asbestos ATCM) is a California Air Resources Board (CARB) regulation that applies to sites where any amount of naturally-occurring asbestos (NOA) is present in an area to be disturbed. The Asbestos ATCM requires projects greater than 1.0 acres to develop and implement an Asbestos Dust Mitigation Plan (ADMP) to minimize emissions of construction dust and NOA fibers, and effectively requires those projects with nearby offsite receptors to also develop and implement an Asbestos Air Monitoring Plan (AAMP) for fenceline air sampling for NOA fibers. The ADMP/AAMP program is administered by the local air districts (e.g., the Bay Area Air Quality Monitoring District, or BAAQMD).
Path Forward Environmental Engineering has significant experience in the development and implementation of ADMPs and AAMPs that meet the requirements of the Asbestos Toxics Control Measure, the evaluation of asbestos data, and the fulfillment of Asbestos ATCM reporting requirements. In addition, we act as the interface between project proponents and the local air district.
The BAAQMD “action level” of 0.0160 transmission electron microscopy structures per cubic centimeter (TEM S/cm³) was originally developed by Path Forward’s Greg Noblet in the context of a health risk evaluation of NOA fibers emitted from a construction site in the Hunters Point neighborhood of San Francisco.