EPA Lead Exam Already Graded A
1. How many parts per million (ppm) are in 1%? - Answer: 1% equals 10,000 ppm.
2. What is the allowable limit of lead in dry surface paint as measured by XRF? - Answer: The limit for lead in dry surface paint is 1.0 mg/cm².
3. What is the allowed quantity of le...
2. What is the allowable limit of lead in dry surface paint as measured by XRF?
- Answer: The limit for lead in dry surface paint is 1.0 mg/cm².
3. What is the allowed quantity of lead in dry surface paint when tested through paint chip analysis?
- Answer: The permissible lead content in dry paint found via chip testing is 5,000 ppm, which equates
to 5% by weight.
4. What are the dust clearance levels for various surfaces?
- Answer:
- Floors: 40 µg/ft²
- Window sills: 250 µg/ft²
- Wells: 400 µg/ft²
- Outside concrete: 800 µg/ft²
- Soil in high-contact areas: 400 ppm
- Soil in low-contact areas: 1,200 ppm
5. What is the maximum allowable lead concentration in drinking water?
- Answer: The allowable lead level in drinking water is 15 parts per billion (ppb) or 15 mg/L.
6. At what blood lead level (BLL) is a child considered to be at risk?
- Answer: A child is considered at risk with a blood lead level of 5 µg/dL.
7. What is the NIOSH threshold for blood lead levels of concern?
- Answer: NIOSH considers a blood lead level of 25 µg/dL a cause for concern.
,8. What is the permissible OSHA blood lead level?
- Answer: The permissible level set by OSHA is 40 µg/dL.
9. What is the blood lead level at which OSHA requires medical removal?
- Answer: OSHA mandates medical removal at a blood lead level of 50 µg/dL.
10. What was the allowed lead content in paint before 1978?
- Answer: Before 1978, paint was allowed to contain up to 0.06% lead, or 600 ppm.
11. As of 2009, what is the maximum lead percentage permitted in paint?
- Answer: The permitted lead concentration in paint is now reduced to 0.009%, or 90 ppm.
12. What does the TCLP determine regarding hazardous waste?
- Answer: The Toxicity Characteristic Leaching Procedure (TCLP) standard for hazardous waste is set at
5 ppm.
13. What does TSCA Title IV, Section 402/404 require from the EPA?
- Answer: This section directs the EPA to develop training and certification requirements for
individuals performing risk assessments and for lead professionals.
14. True or False: The EPA's debris rule allows lead waste from renovation of residential housing to be
disposed of as municipal waste.
- Answer: True.
15. True or False: Sections 1012 and 1013 of Title X refer specifically to HUD regulations.
- Answer: True.
16. Are lead inspections required for homes built before 1978?
- Answer: No, lead inspections are not mandatory for pre-1978 housing.
, 17. True or False: There is no set time frame for lead abatement in housing, but all hazards must be
addressed in houses funded with $25,000 or more from HUD.
- Answer: True.
18. True or False: The CDC's latest ruling states children face health risks with blood lead levels of just 5
µg/dL, with significant health risks emerging at 80 µg/dL or higher.
- Answer: True.
19. True or False: XRF readings for clearance tests must be taken in any four rooms where abatement or
renovation occurred.
- Answer: False.
20. True or False: While it’s beneficial for inspectors to understand respiratory protection standards, it is
not a requirement for EPA lead inspectors.
- Answer: True.
21. What minimum protective gear should an assessor wear when performing inspections or risk
assessments in homes built before 1978?
- Answer: Assessors should wear booties and rubber gloves.
22. If an abatement project is scheduled in a house from the 1950s, is a risk assessment required by Title
X law beforehand?
- Answer: No, a risk assessment is not required prior to work beginning.
23. What are the standard procedures for collecting a dust sample?
- Answer: The process includes:
1. Outlining the sampling area
2. Measuring 1/10 to 1 square foot
3. Preparing the sampling tube
4. Wearing gloves
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