Port Washington Union Free School District: Asbestos Management - - PowerPoint PPT Presentation

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

• ccupants 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

• f 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

• f 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

• ther 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

• f 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/m³ (5 fibers/cc).

› NIOSH recommends & OSHA enforces a limit of

100,000 fibers/m³ 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

• f 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

• perating 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

1.

Damaged or significantly damaged thermal system insulation (TSI) ACBM

2.

Damaged friable surfacing ACBM

3.

Significantly damaged friable surfacing ACBM

4.

Damaged or significantly damaged friable miscellaneous ACBM

5.

ACBM with potential for damage

6.

ACBM with potential for significant damage

7.

Any remaining friable ACBM or friable 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