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Chap. 5 Q-A Questions and Answers 100% Solved
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Exam of 7 pages for the course EPA Lead Risk Assessor at EPA Lead Risk Assessor (Chap. 5 Q-A)
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Chap. 5 Q-AAre air and water samples part of regular lead risk assessments? - answer “Neither air
nor water samples are part of routine lead-based paint risk assessments or lead hazard
screens."
Must all properties under 5 be visually assessed and environmentally sampled? -
answer For fewer than five rental units YES, or in multiple rental units where the units
are not similar.
What are the three types of criteria when choosing housing after minimum number has
been reached? - answer Targeted, worst-case, and randomly selected dwellings for
sampling using the criteria in Ch. 5(see Section III.B and table 5.9).
When visually inspecting, what should determine sampling locations? - answer Use
patterns of occupants.
Also identify bare soil in play areas and other parts of the yard and select locations for
soil sampling.
4 types of common sampling locations - answer1) entryway (if the dwelling unit has
direct access to the outdoors)
2) at least four living areas where children under age 6 are most likely to come into
contact with dust
(such as the kitchen, the children's principal playroom, and children's bedrooms).
3) One floor sample and one interior window sill sample (if a window is present) should
be collected in each of the rooms or areas selected for dust sampling in dwelling units.
4) Collect a floor sample at the entryway with immediate access to the outdoors.
What extra areas are required for sampling in multi-family properties? - answercommon
areas, including main entryway, stairways and hallways, and other common areas
frequented by a young child.
(In each area, a floor sample and an interior window sill sample should be collected if
there is a frequently used window present.
Dust samples should be sent to a laboratory recognized by what regulatory agency
using which program? - answerEnvironmental Protection Agency (EPA) through the
National Lead Laboratory Accreditation Program (NLLAP)
composite soil sample should be taken from bare soil in each of which three area
types? - answer(a) each play area with bare soil,
(b) Drip zones around house,
(c) Front yards, backyards, side yards, (including gardens).
, When conducting soil samples, is it always necessary to sample bare spots? -
answerNecessary only for play areas. Test if larger than one square yard or if otherwise
regulated.
Name for national accredited program for lead? - answerNLLAP
Three main possibilities when evaluating property? - answera risk assessment, a lead
hazard screen, and a lead-based paint inspection.
Level of lead that window sill must be under: - answer250 ug/Ft^2 (micrograms per foot
squared.)
Floor limit for lead: - answer40 ug/Ft ^2 (Micrograms per foot squared.)
Do lead-based paint inspections determine immediate hazards? - answerLead-based
paint inspections can not determine whether the paint presents an immediate hazard.
What two common types of samples are only performed by a risk assessor? -
answerDust and soil samples.
Thus, if a risk assessment is not performed along with the paint inspection, a full
determination of hazards cannot be made.
Why are Lead-based paint inspectors used before remodeling/abatement? -
answerThey can reduce amount of work by identifying contaminating areas that need to
be abated during remodeling/abatement.
When should a chewable surface be tested as required by EPA regulation? -
answerWhen there is evidence of teeth marks.
Is it ever allowable for risk assessors to take extra samples more than required? -
answerYes. "This is especially appropriate if the client is a family with very young
children." "Similarly, with regard to soil, if there is a possibility of lead contamination, as
in old urban neighborhoods, a young family may want soil to be tested even if it is
currently not bare."
What is the highest percentage of possible soil contamination in homes built after the
1940's? - answer4% highest amount after 1940 in soil. In homes built before 1940, it is
14% in soil contamination. (also 1960-2005 it is 0.3%)
What percentage of Significant Lead-Based Paint Hazards were found in homes
between 1960- 1977? - answer11%
What percentage of Significant Lead-Based Paint Hazards were found in homes Before
1940? - answer67% for hazards.
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