EPA Lead Risk Assessor Exam Latest Update
Question:
How long should water remain motionless before sampling
Answer:
At least 6 hours
Question:
how to conduct water sampling?
Answer:
take first draw with cold water after letting sit at least 6 hours in clean plastic Nalgene bottle
Question:
why would samples after the 'first flush' be taken
Answer:
if contamination is believed to be in certain parts of the water system
Question:
how long after sampling should water be tested
Answer:
no more than 28 hours 1 / 4
Question:
in a lead hazard screen, how many surfaces can be in poor condition and without warranting for a full risk assessment
Answer:
- or less
Question:
how to conduct dust sampling in a lead hazard screen?
Answer:
- composite samples (1 for floors including entry and 1 for sills)
Question:
are soil or water sampled at a lead hazard screen?
Answer:
no
Question:
dust standard levels for a lead hazard screening
Answer:
floors: 25 ug/sq ft
sill: 125 ug/sq ft
*haven’t updated with the new floor and sill standards for risk assessments (new 10 and 100) should be half new levels. standards are supposed to be more stringent for screens 2 / 4
Question:
how many paint chip samples are taken in a hazard screen?
Answer:
- sample/surface in poor condition
max 5
Question:
how many dust samples are taken in multifamily common areas?
Answer:
valid for up to 2000 sq ft: 2 floor, 2 sill (including entry and first floor
landing) if applicable, 2 every 4 floors (1 sill, 1 floor)
Question:
acceptable recovery rate for dust wipes
Answer:
80-120%
Question:
risk assessment as defined by TSCA
Answer:
determine and report the severity, nature, and location of LBP hazard and provide remediation advice
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Question:
how long does a hazard control have to last to be considered abatement?
Answer:
20 years
Question:
interim controls
Answer:
-paint stabilization -friction treatment -dust removal -covering bare soil
Question:
HUD recommended visual ongoing monitoring schedule -done by owner
Answer:
at least annually, when owner receives complaint from tenant, when unit becomes vacant, when damage occurs (fire, flood, etc.)
- / 4