EPA RISK ASSESSOR ACTUAL STUDY GUIDE 2025/2026
QUESTIONS WITH SOLUTIONS GRADED A+
✔✔Friction and impact surfaces should be analyzed through:
A) Paint chip
B) Dust sample
C) XRF - ✔✔B
✔✔Accessible and chewable surfaces should be analyzed through:
A) Paint chips
B) XRF
C) Visual asessment - ✔✔C
✔✔What size should your paint chip sample be? - ✔✔2 inches x 2 inches
✔✔Your landlord was telling you about his experiences with an unlicensed risk
assessor. That risk assessor used a chemical spot test kit, and also used portable XRF
analysis of paint chips. Would you accept these as valid? (Y/N) - ✔✔No
✔✔NLLAP includes these 2 organizations: - ✔✔A2LA - American Association for
Laboratory Accreditation
AIHA - American Industrial Hygiene Association
✔✔ASV - ✔✔Anodic Stripping Voltametry
Example of portable laboratories for analyzing lead in paint.
✔✔Describe 1 pro and 1 con of composite paint chip sampling. - ✔✔Pro: cost saving
Con: if any samples are positive, you need further sampling to determine which paint
chip was positive
✔✔Why are composite samples usually collected by surface area? - ✔✔Risk assessor
can composite these samples in the field, provided each subsample is the same surface
area. If they were done by weight percent, you have to collect each subsample
individually, then the laboratory will measure each subsample and then homogenize
them in the lab.
✔✔T/F: Title X defines lead contamination in water as a lead-based paint hazard. -
✔✔False
✔✔When __% or more of the drinking water taps in a community exceed this level,
regulations require corrosion control treatment, source water treatment, public
education and lead service line replacement.
, A) 15%
B) 90%
C) 80%
D) 1% - ✔✔B
✔✔What's the purpose of acid in container? - ✔✔To prevent absorption of lead through
the container walls.
✔✔T/F: Water sampling is required for most lead-based paint risk assessments. -
✔✔False
✔✔T/F: A unit might fail the lead hazard screen but later be shown free of hazards. -
✔✔True
✔✔How many composite dust samples a risk assessor should take for lead hazard
screen? - ✔✔2
Uncarpeted floors
Window troughs
4 subsamples per composite:
1st child's bedroom
2nd child's bedroom
Main entryway
Additional location if necessary
✔✔What does a risk assessor provide the owner after it passes a lead hazard screen? -
✔✔Documentation of the negative finding
Provide a copy of the reevaluation schedule, which is once every three years
✔✔3 Types of Risk Assessments for Multifamily Properties - ✔✔Worst case scenario
Random
Targeted
✔✔Which of the three is the most frequently used risk assessment? - ✔✔Targeted
sampling
✔✔4 Aspects of a Similar Dwelling - ✔✔Built at the same time
Common maintenance and management history
Have a common paint history
Similar construction
QUESTIONS WITH SOLUTIONS GRADED A+
✔✔Friction and impact surfaces should be analyzed through:
A) Paint chip
B) Dust sample
C) XRF - ✔✔B
✔✔Accessible and chewable surfaces should be analyzed through:
A) Paint chips
B) XRF
C) Visual asessment - ✔✔C
✔✔What size should your paint chip sample be? - ✔✔2 inches x 2 inches
✔✔Your landlord was telling you about his experiences with an unlicensed risk
assessor. That risk assessor used a chemical spot test kit, and also used portable XRF
analysis of paint chips. Would you accept these as valid? (Y/N) - ✔✔No
✔✔NLLAP includes these 2 organizations: - ✔✔A2LA - American Association for
Laboratory Accreditation
AIHA - American Industrial Hygiene Association
✔✔ASV - ✔✔Anodic Stripping Voltametry
Example of portable laboratories for analyzing lead in paint.
✔✔Describe 1 pro and 1 con of composite paint chip sampling. - ✔✔Pro: cost saving
Con: if any samples are positive, you need further sampling to determine which paint
chip was positive
✔✔Why are composite samples usually collected by surface area? - ✔✔Risk assessor
can composite these samples in the field, provided each subsample is the same surface
area. If they were done by weight percent, you have to collect each subsample
individually, then the laboratory will measure each subsample and then homogenize
them in the lab.
✔✔T/F: Title X defines lead contamination in water as a lead-based paint hazard. -
✔✔False
✔✔When __% or more of the drinking water taps in a community exceed this level,
regulations require corrosion control treatment, source water treatment, public
education and lead service line replacement.
, A) 15%
B) 90%
C) 80%
D) 1% - ✔✔B
✔✔What's the purpose of acid in container? - ✔✔To prevent absorption of lead through
the container walls.
✔✔T/F: Water sampling is required for most lead-based paint risk assessments. -
✔✔False
✔✔T/F: A unit might fail the lead hazard screen but later be shown free of hazards. -
✔✔True
✔✔How many composite dust samples a risk assessor should take for lead hazard
screen? - ✔✔2
Uncarpeted floors
Window troughs
4 subsamples per composite:
1st child's bedroom
2nd child's bedroom
Main entryway
Additional location if necessary
✔✔What does a risk assessor provide the owner after it passes a lead hazard screen? -
✔✔Documentation of the negative finding
Provide a copy of the reevaluation schedule, which is once every three years
✔✔3 Types of Risk Assessments for Multifamily Properties - ✔✔Worst case scenario
Random
Targeted
✔✔Which of the three is the most frequently used risk assessment? - ✔✔Targeted
sampling
✔✔4 Aspects of a Similar Dwelling - ✔✔Built at the same time
Common maintenance and management history
Have a common paint history
Similar construction
