HUD Ch. 8: Resident Protection & Worksite Protection

Question 1

If residents will be allowed to remain inside the dwelling while work is being conducted or return to the dwelling after work is completed, a _______ ______ must be collected from the _________ at the end of each day

Answer 1

dust sample; living area at greatest risk of contamination

Question 2

A negative pressure zone is established by:

Answer 2

blowing air out of the work area through a HEPA filter, while air intake is restricted to a lower flow rate than exhaust

These are not necessary for most residential lead abatement projects

Question 3

When is a negative pressure zone appropriate in a residential dwelling?

Answer 3

• Floor sanding

- Abrasive blasting

Question 4

When a negative pressure zone is used, at least ___ air exchanges per hour should be provided and all exhaust air must be passed through a HEPA filter

Answer 4

10

Question 5

If abatement or interim control work will disturb no more than 10 sq feet of painted room,

Answer 5

-Residents can remain in house, but outside work area
-Physical barrier to prevent resident entry into work
area
-Warning posted at entry to room but not on building

Question 6

If 1 work day of abatement or interim work will disturb no more than 2 sq feet, must provide the following containment and barrier system:

Answer 6

-Single layer of 6 mil poly on floor extending 5 ft beyond perimeter in all directions

Question 7

If 1 work day of abatement or interim work will disturb between 2 and 10 sq feet of painted room, must provide the following containment and barrier system

Answer 7

-2 layers of 6 mil poly on entire floor.
-Poly with primitive airlock in all doorways
(Doors secured from inside work area need not be sealed)

Question 8

If abatement or interim work will occur for up to five days, must provide the following containment and barrier system:

Answer 8

• Residents must be outside dwelling, but can return in evening after workday and cleanup are completed. Resident must have safe passage to bathroom, at least one living are, and entry
• 2 layers of 6 mil poly on entire floor
• Poly with primitive airlock in all doorways
• Overnight barrier should be locked or firmly secured
• Post warning at main and secondary entrances

Question 9

Any interim control or abatement disturbing more than 10 sq ft, must provide the following containment and barrier system:

Answer 9

• Residents must remain outside the dwelling for remainder of project and cannot return until clearance has been achieved.
• 2 layers of 6 mil poly on entire floor
• airlock on doors if just abatement is not being done on entire residence
• warning posted at building exterior near main and secondary entryways

Question 10

For window treatment or replacement ____layer of 6 mil poly is required on the ground or floor extending ____ feet beyond the perimeter of window

Answer 10

1 layer; 5 feet

Question 11

If working on window from the inside, must use ___layers of plastic taped to interior wall if working on window from outside

Answer 11

2 layer

Question 12

Work must stop and work area cleaned up if these weather conditions are present:

Answer 12

• Wind speeds are > 20 mph

- Before rain begins