Naturally Occurring Asbestos (NOA)
Naturally Occurring Asbestos (NOA)
Like many counties in Northern California, Mendocino County has areas that contain Naturally Occurring Asbestos (NOA). State regulations, enforced by the District, may affect quarries, grading and surfacing projects.
NOA Grading and Surfacing Application Process and Forms
Outline of the NOA application process
NOA Dust Mitigation Plan Application (and exemption request)
NOA Links
Copies of the State NOA Regulations 17 CCR 93105 and 93106
California Air Resources Board Web Page for Naturally Occurring Asbestos
Mapping
The District, working with other agencies, has produced a series of maps of areas likely to contain NOA in Mendocino County. These maps are not parcel specific and only show areas where NOA is more likely, the actual presence of NOA can only be determine by an expert.
NEW! Google Earth NOA map
MAP of likely areas to contain NOA in Mendocino County
Consultants
Under 17 CCR 93105 & 93106, only a State Registered Geologist can document that property is free of Naturally Occurring Asbestos. The District cannot recommended a particular Geologist, but the state Department of Consumer Affairs does provide a searchable online database of Registered Geologists.
Searchable Database of Registered Geologists
MCAQMD Geologic Evaluation Guidelines (for consultants)
Guidelines for Geologic Investigations of Naturally Occurring Asbestos in California SP-124 (for consultants)
Contact the District (707) 463-4354 with any questions.