Draft memo forwarding thread, April 2002

z z ■<

o o i 1^ co

■D o c o CT o Follow up Recommendations Based on Sampling Results from ATSDR’s Residential Sampling o' Ca5 CD "□ o CO Asbestos level (bulk and air) Sequential steps for follow up Comments/Notes: 9L O Settled dust 1. Clean-up o Clean-up should follow OSHA standards for training and o c > 1% asbestos w/w (PLM) 2. Resample air and bulk worker protection and any state laws for licensing. 3 and 3. Evaluate data Consideration should be given to removing hard to clean CD 3 air 4 Determine next actions based on furnishings, like carpet and upholstery, if sampling data any level follow up recommendations remains elevated after repeated cleaning Settled dust 1. Clean-up Consideration should be given to removing hard to clean >Detection Limit - 1% 2. Resample air and bulk fiimishings, like carpet and upholstery, if sampling data w/w (PLM) 3. Evaluate data remains elevated after repeated cleaning and 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, personal Special attention should be paid to hard to clean stirfaces. w/w (PLM) monitors - PLM, PCM, TEM) (e.g., certain fabrics, furniture, carpet, and curtains). and 2. Determine appropriate follow up air based on professional judgement <0.01 free (TEM) 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. and 3. Evaluate air data air 4. Determine follow up actions > 0.01 free (TEM) Settled dust No further action Non-detect (PLM) and air <0.01 free (TEM)

34