EPA Lead Inspector UPDATED Exam Questions and CORRECT Answers
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Course
EPA Lead Inspector
Institution
EPA Lead Inspector
EPA Lead Inspector UPDATED Exam
Questions and CORRECT Answers
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
...
EPA Lead Inspector UPDATED Exam
Questions and CORRECT Answers
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
HUD Guidelines for abatement - Correct Answer- Must last 20 years. Includes the following
procedures: - Removal - Enclosure - Replacement - Encapsulation Painting over is a
temporary fix!
Water standards for lead - Correct Answer- - 15 ppb under the Clean Water Act (CWA) - 5
ppb under the FDA standard (bottled water) *These are the ONLY instances where ppb is
used
Why was lead used so much? - Correct Answer- - Durable - Colorful - Anti-corrosive - Anti-
fungal - Drying agent
What does RRP do? - Correct Answer- - Renovation, Repairing, and Painting program -
Provided enforcement to Title X in 2010 ... $37,500 fines for violation - Dust sampling
technicians can only sample for RRP projects
What must you do if a pre-1978 site is not tested? - Correct Answer- Presume lead-based
paint.
Where is LBP still allowed? - Correct Answer- Commercial purposes/boats
What are the major industrial uses of lead? - Correct Answer- Present - Electrical batteries -
Chemical additives Past - Paint additive - Gasoline additive (now in soil ... doesn't permeate
quickly, so sample TOP portions (12 in)) - Solder/pipes
What are the common pathways of contamination? - Correct Answer- - For children under 6,
hand-to-mouth contact from DUST ... lead tastes sweet (pica is the term for consumption of
non-food items) - For adults, occupational exposure (take-home lead ... pets can contribute
too)
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