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EPA Lead Inspector Exam Questions and Answers.
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EPA Lead Inspector Exam Questions and Answers.
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EPA Lead Inspector ExamQuestions and Answers
Denning [Date] [Course title]
, Lead-based paint (LBP) - Correct Answer: Any varnish, shallac, or coating that contains either- 1.0
mg/cm2 - 0.5 % by weight - 5000 ppm - Older instruments could not read accurately at 0.7, so the lead
standard was updated to 1.0
Dust sample clearance values - Correct Answer: - Floors: 40 μg/ft2 > 10 μg/ft2 (10 μg/ft2 in NY) -
Windows: 250 μg/ft2 > 100 μg/ft2 (50 μg/ft2 in NY) - Window wells (troughs): 400 μg/ft2 (100 μg/ft2 in
NY) - Samples must be at 1 sq ft > 2 sq ft (can be reduced to 1 sq ft if within 10 μg)
EPA Soil Regulations - Correct Answer: - 400 ppm for playgrounds/children's areas - 1200 ppm for rest of
yard - There must be 9 sq ft of soil to classify with soil testing - At 5000 ppm, MUST remediate/abate
(remove & replace, paving, or bioremediation)
Lab sampling technique - Correct Answer: - AAS (Atomic Absorption Spectrometry) - Sample is placed
into a furnace and vaporized ... light is shone through to give a quantitative result
XRF - Correct Answer: - X-ray fluorescence - Utilizes radioactive isotopes (unstable material trying to
reach stability) - Cobalt-57 (half-life of 9 months) and cadmium-109 (half-life of 15 months) are the two
sources (where radiation originates) - Emits gamma rays but will read X-rays (backscatters) - Ionizing
radiation from the removal of electrons due to interactions with radiation
LBP Hazard - Correct Answer: ANY condition that causes exposure to lead
LBP inspection - Correct Answer: a surface-by-surface investigation to determine the presence of lead
CPSC - Correct Answer: - Consumer Product Safety Commission - Set a lead paint standard: cannot
contain 0.06% lead by weight ... updated to 0.009% - The commission banned lead-based paint in 1978
True/False: Dust sampling only done for hazard assessments - Correct Answer: True; only risk assessors
take samples to determine likelihood of coming into contact with contaminants
What kind of sampling must be done for inspections? - Correct Answer: Random ... repeats must be
annotated then you move onto the next
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