Port Washington Union Free School District: Asbestos Management Plan Presented By: Brendan Broderick, P.G. Edward McGuire J C Broderick & Associates April 16, 2019
Asbestos in Our Homes, Schools & Offices We hope that this presentation will help alleviate the concerns that building occupants have expressed about the presence of asbestos in their buildings.
What is Asbestos? Not Man-Made The name given to six (6) naturally occurring fibrous minerals Chrysotile Amosite Crocidolite Tremolite* Actinolite* Anthophyllite*
Miracle Fiber Does not evaporate or dissolve Remains suspended in air and can be carried long distances by wind or water Not generally broken down and can remain virtually unchanged over long periods of time Resistant to heat, fire, chemical and biological degradation. Used in a wide range of manufactured products
Ancient Use Stone age(750,000 years • ago), Asbestos discovered in debris 5000 BC, Paintings of slaves in • mines in Finland, Sweden & Greece. Asbestos discovered in candles and lamps 800 AD, Roman Emperor • Charlemagne – Stories Using Asbestos Woven Table Cloths
Modern Day Use
Common Products Fire proofed fabrics and clothing Vermiculite containing potting soil Vehicles parts such as brake pads, clutches and gaskets. Most common known use is in construction materials
Asbestos in Our Environment Almost daily, we are exposed to some prevailing level of asbestos fibers in buildings or experience some existing level in the outdoor air. Asbestos minerals (fibers) are widespread in the environment. From naturally occurring sources of asbestos. From the wearing down or disturbance of manufactured products. Low levels of asbestos fibers that present little, if any, risk to your health can be detected in almost any air sample.
Ambient Exposures Studies For example , A cubic meter is about the amount of air that you breathe in 1 hour. ATSDR reports that 10 fibers are typically present in a cubic meter of outdoor air in rural areas (or 0.00001 fibers/cc). Typically 100 fibers an hour in city and suburban areas (0.0001f/cc). Typically 10,000 fibers an hour or higher close to mines or a factory(0.01 f/cc ). Concentrations measured in homes, schools, and other buildings that contain asbestos includes a range from 30 to 6,000 fibers per hour (0.00003 to 0.006 f/cc).
Is it a Cause for Concern? As is with most carcinogens there is no established safe level of exposure to asbestos. Although asbestos is hazardous, the risk of asbestos-related disease depends upon exposure to airborne asbestos fibers (inhalation). Asbestos-related diseases are dose-response related. The average airborne asbestos levels in buildings seem to be very low. Accordingly, the health risk to most building occupants also appears to be very low.
Worker Exposures Studies It is important to recognize that the majority of people who have developed diseases because of asbestos exposures are former asbestos workers. People who were exposed in the past to levels of asbestos fibers in workplace air that were as high as 5 million fibers/m ³ (5 fibers/cc). NIOSH recommends & OSHA enforces a limit of 100,000 fibers/m ³ of air TWA (0.1fibers/cc).
Children Exposure Studies In the small number of studies that have specifically looked at asbestos exposure in children, there is no indication that younger people might develop asbestos-related diseases more quickly than older people. Studies don’t suggest any affects to fetuses through a mothers exposure.
Hazardous Asbestos Exposure Levels in Schools Clearance Level Established by the US EPA in Schools is 70 structures per millimeter square (approx. 22,000 fibers an hour or 0.022 f/cc). Clearance Level Established by the New York State Department of Labor in Schools is 10,000 fibers an hour or 0.01 f/cc.
Federal Regulations EPA established a ban on new uses of asbestos (1989). Uses established before this date are still allowable. EPA regulates the release of asbestos from factories and during building demolition or renovations and disposal of waste asbestos materials or products (NESHAP). EPA has a limit of 7 million fibers per liter may be present in drinking water. FDA regulates the use of asbestos in the preparation of drugs and restricts the use of asbestos in food- packaging materials. EPA (AHERA) requires schools to identify asbestos- containing material in their school buildings and implement an Asbestos Management Plan (AMP).
Asbestos in Schools !!!! The only reason why asbestos containing building materials are most associated with school buildings is because school buildings are the only structures in the United State required to implement an Asbestos Management Plan.
40 CFR Part 763, AHERA
Asbestos Management Plan EPA; ACBM will pose little risk if it is well maintained under an AMP. EPA required a pro-active, in-place management program for any known or suspected ACBM. The purpose of the AMP is to minimize exposure of all building occupants to asbestos fibers. Consists of a set of procedures and practices for operating and maintaining a building to keep it as free of asbestos contamination as possible. EPA only requires asbestos removal to prevent significant public exposure to airborne asbestos fibers during building demolition or renovation activities.
Original Inspection Environmental Compliance, Inc. in 1988 Identified each functional space in the district’s school building Inspected each functional space for suspect asbestos containing building materials (ACBM) List, quantified and assessed the condition of each suspect ACBM Analyzed each suspect ACBM for asbestos content or assume as being asbestos containing Recorded findings in an Asbestos Management Plan to include management planner recommendations (Remove, Repair & O&M)
Original Inspection
Designated Person AHERA does not require the DP to be accredited. Must have training which must include the basic knowledge of the health effects of asbestos, the detection, identification and assessment of asbestos containing material, options for controlling asbestos- containing material, asbestos management programs, and relevant federal and state regulations.
Reinspection Every 3 Years Update changes in conditions (response action) Changes in functional spaces (building construction, additions, renovations, etc.) Account for changes in laboratory methodologies Other considerations (vermiculite) Identify missed suspect materials Identify newly discovered suspect materials New physical assessment of ACBM
Physical Assessment Damaged or significantly damaged thermal 1. system insulation (TSI) ACBM Damaged friable surfacing ACBM 2. Significantly damaged friable surfacing ACBM 3. Damaged or significantly damaged friable 4. miscellaneous ACBM ACBM with potential for damage 5. ACBM with potential for significant damage 6. Any remaining friable ACBM or friable 7. suspected ACBM
ACBM Conditions Damage: Deterioration or sustained physical injury such that the internal structure (cohesion) of the material is inadequate or which has delaminated such that its bond to the substrate (adhesion) is inadequate, or which, for any other reason, lacks fiber cohesion or adhesion qualities . Such damage or deterioration may be illustrated by the separation of ACM into layers; separation of ACM from the substrate; flaking, blistering, or crumbling of the ACM surface; water damage; significant or repeated water stains, scrapes, gouges, mars or other signs of physical injury on the ACM. Asbestos debris originating from the ACBM in question may also indicate damage.
ACBM Condition Descriptions Good Condition (Minor Damage) : No Visible damage or deterioration or showing only very limited damage or deterioration. Damage : (Fiber Release): Consists of the falling or dislodging of more than 3 square or linear feet of friable ACBM. Significant Damage : Significant damage exists where damage is evenly distributed across 10 percent or more of a functional space or is localized over 25 percent of a functional space.
Reinspection
AMP Notification
Periodic Surveillance The surveillance does not have to be conducted by an accredited person but by someone who is appropriately trained on asbestos (such as a maintenance person). Must visually inspect all areas identified in the management plan as ACBM or suspected ACBM Record whether there are any changes in the condition of the material
Worker Training
STW Notification
STW Notification
Record Keeping
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