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EPA Lead Inspector Exam Study Guide 2023 Questions and Answers
1.Lead-based paint (LBP): Any varnish, shallac, or coating that contains
either- 1.0mg/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 2.Dust sample clearance values: - Floors: 40 ¼g/ft2 > 10 ¼g/ft2 (10
¼g/ft2 in NY) - Windows: 250 g¼/ft2 > 100 ¼g/ft2 (50 ¼g/ft2 in NY) -
Window wells (troughs): 400 ¼g/ft2 (100 ¼g/ft2 in NY) - Samples must
be at 1 sq ft > 2 sq ft (can be reduced to 1 sq ft if within 10 ¼g)
3.EPA Soil Regulations: - 400 ppm for playgrounds/children's areas -
1200 ppm for rest of yard - There must be 9 sq ft of soil to classify with 1 / 3
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soil testing - At 5000 ppm, MUST remediate/abate (remove & replace, paving, or bioremediation)
4.Lab sampling technique: - AAS (Atomic Absorption Spectrometry) -
Sample is placed into a furnace and vaporized ... light is shone through to give a quantitative result
5.XRF: - X-ray fluorescence - Utilizes radioactive isotopes (unstable
material try- ing 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 6.LBP Hazard: ANY condition that causes exposure to lead 2 / 3
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7.LBP inspection: a surface-by-surface investigation to determine the
presence of lead
8.CPSC: - 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 9.True/False: Dust sampling only done for hazard assessments: True; only risk assessors take samples to determine likelihood of coming into contact with contaminants
10.What kind of sampling must be done for inspections?: Random ...
repeats must be annotated then you move onto the next
11.HUD Guidelines for abatement: Must last 20 years. Includes the
following procedures: - Removal - Enclosure - Replacement -
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