Building & Bridge Demolition/Relocation

Asbestos abatement and regulated material management

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Assessment report requirements

Proper documentation of the assessment is necessary to meet federal and state requirements and to provide information needed for the abatement process. The assessment report should document the presence of asbestos containing materials and other regulated materials and any features that may contain regulated materials or wastes on the entire parcel or bridge site, not just within the structure.


Guidance on what information is needed in the assessment report for specific types of regulated materials or features that may contain regulated materials/wastes is provided below. The assessment report should be prepared in general conformance with one of the following templates: 


The following completed reports are provided as a guide in preparing bridge and building assessment reports: 



Asbestos containing materials

The assessment must be conducted by an inspector(s) that is licensed by the Minnesota Department of Health (MDH) and is a Certified Hazardous Material Manager (CHMM). The assessment report must provide the following information for asbestos containing materials (ACM):



Chlorofluorocarbons (CFCs)

Identify all air conditioning, heat pump, or other refrigeration equipment that contain CFC refrigerant.




Identify location of lead items such as lead bearing plates, lead pipes and any lead bearing materials. Identify location of bridge lead plates.




Identify the number and location of all mercury containing equipment, such as fluorescent, mercury vapor, and HID lighting, electrical switches and other equipment.



Polychlorinated Biphenyls (PCB’s)

Identify the number and location of all light ballasts, transformers, and other electrical equipment that contain PCB’s. Electrical equipment that does not contain PCB’s must be labeled “No PCB’s”.  Equipment without labels must be assumed to contain PCB’s and managed and disposed of as PCB waste.



Treated wood

Using professional judgment, identify the type, volume and location of each treated wood (creosote, pentachlorphenol, CCA, etc). If it is not possible to distinguish between the types of treated wood at a site, include a general discussion of the location and volume of treated wood.  Do not conduct laboratory analyses of treated wood samples.



Other regulated wastes



Other solid wastes




Document presence and location of any features that may contain regulated materials or waste. Examples of these features include, but are not limited to: