Asbestos is commonly found in ultramafic rock, including serpentine, near fault zones and is released into the air when it is broken or crushed. This can happen when land is graded for building purposes, or at quarrying operations. The California Air Resources Board has identified NOA as a toxic air contaminant. NOA may result in the development of lung cancer or other health impacts if inhaled. Work in serpentine areas requires a District pre-approved dust control plan and may include asbestos air monitoring.
The San Luis Obispo County Air Pollution Control District (District) will assess Review Fees for all work that has the potential to disturb soil containing Naturally Occurring Asbestos (NOA).
NOA Project Review Fee amounts depend upon the project size and if projects involve disturbance of asbestos serpentine and include dust mitigation plans or air monitoring. Exemptions from requirements are available based on geological evaluation. Please refer to the fee schedule for more information.