NYC-WTC_000196150

NYC 9/11 Public Portal Document

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Follow up Recommendations Based on Sampling Results from ATSDR’s Residential Sampling

Asbestos level (bulk and air) Sequential steps for follow up CommentsNotes: Settled dust 1. Clean-up Clean-up should follow OSHA standards for training and > 1% asbestos w/w (PLM) 2 Resample air and bulk worker protection and any state laws for licensing. 3 Evaluate data ^Consideration should be given to removing hard to clean air 4 Determine next actions based on / furnishings, like carpet and upholstery, if sampling data any level follow up recommendations L ^remains elevated after repeated cleaning Settled dust 1. Clean-up / Consideration should be given to removing hard to clean >Detection Limit - < i% 2. Resample air and bulk furnishings, like carpet and upholstery, if sampling data wAv (PLM) ' 3. Evaluate data remains elevated after repeated cleaning ■ A 4. Determine next actions based on air follow up recommendations > 0.01 f/cc(TEM) > Settled dust 1. Evaluate all appropriate data >Detection Limit - < 1% related to asbestos (air, bulk, Special attention should be paid to hard to clean surfaces. w/w (PLM) personal monitors - PLM. XRD, (e.g., certain fabrics, furniture, carpet, and curtains). PCM, TEM) air 2. Determine appropriate follow up <0.01 f/cc (TEM) based on professional judgement 3. If clean up is recommended, resample and reevaluate results Settled dust 1. Clean-up Remain advised of outdoor levels. If high levels are Non-detect (PLM) 2. Resample air frequent retesting may be appropriate. 3. Evaluate air data o air 4. Determine follow up actions H > 0.01 f/cc (TEM)

I—i Settled dust No further action s o Non-detect (PLM) o o Io air o <0.01 f/cc (TEM) co o co Attachment i co co (JI

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NYC-WTC_000196152