Epa Lead Supervisor Exam Study Guide With Actual Questions 2025

EPA LEAD SUPERVISOR EXAM STUDY GUIDE
WITH ACTUAL QUESTIONS 2025

✅Spiked Sample - ✅✅is a wet wipe spiked with a known amount of lead to test the
laboratories ability to analyze dust wipe samples

✅Ratio for spiked samples - ✅✅1 sample for every 50 field samples

✅Advantages of composite sampling - ✅✅lower cost per surface sampled;
increased surface area that can be wiped for the same cost;

✅Disadvantages of composite sampling - ✅✅information on specific location is lost;
laboratories will have to adopt special handling and digestion procedures

✅Composite samples should be collected from where? - ✅✅bare floors, carpeted
floors (wall to wall carpet), window sills, window troughs, exterior surfaces

✅What happens if a composite sample fails? - ✅✅all the rooms with that component
must be re-cleaned

✅When should single surface wipe samples be used? - ✅✅when informion is
needed to determine leaded dust levels in a specific location; in other areas where
leaded dust levels are expected to be high to determine if targeted cleaning efforts are
needed.

✅When should composite wipe samples be used? - ✅✅controlling cost is essential;
no reason to suspect that dust levels from same surfaces in different rooms will vary
greatly; costs of multiple-room cleanup will not greatly exceed cost of single room
cleanup

✅Determine numbers of post-abatement clearance samples to be collected? -
✅✅depends upon the number of rooms treated, the type of sampling conducted, and
whether work was done on interior or exterior

✅When does the EPA not require dust wipe sampling? - ✅✅following abatement
exclusively on exterior of a dwelling

✅What are EPA requirements for clearance sampling multifamily housing of 20 units
or more - ✅✅require that a sufficient number of residential dwellings are selected for
dust sampling to provide a 95 percent level of confidence that no more than 5% or 50 of

,the residential dwellings in the randomly sampled population exceed the appropriate
clearance levels

✅Final dust wipe sample results must be reported in - ✅✅ug/ft2
✅Lead Paint 1978 level allowed - ✅✅.06%; 600 ppm

✅Current level lead allowed in paint - ✅✅.009%; 90 ppm

✅Lead Paint allowed in all other consumer products - ✅✅.01%; 100 ppm

✅Hazardous Waste Toxic Characteristic Leaching Procedure (TCLP) - ✅✅5 ppm

✅The use of lead based paint exceeding .06% was banned - ✅✅in 1978 for
residential housing.

✅T/F the concentration of lead paint in deteriorating housing must be greater than 1
mg/cm2 by XRF to pose a threat to workers doing renovation or abatement practices. -
✅✅False

✅Title X does not apply to; - ✅✅bridges and steel structure; hotels and motels
rented less than 100 days and commercial complexes.

✅What is the primary objective of a Lead Paint Risk Assessment? - ✅✅to discover
lead hazards

✅What is the primary objective of a Lead Paint Inspection? - ✅✅to discover lead
paint

✅TSCA Title IV, Section 402/404 Rule directed EPA to; - ✅✅develop training and
certification requirements for lead professionals. Individuals performing inspections and
risk assessments for lead hazards must be certified through the EPA accredited
program

✅T/F EPA's debris rule advises contractors that lead waste generated during
renovation and remodeling of residential housing is now waived from RCRA's rule and
can be disposed of as municipal waste - ✅✅True

✅T/F OSHA established the standard for the worker's permissible exposure limit,
action limit, and exposure time while abating lead - ✅✅True

✅T/F Section 1012/1013 within Title X are sections referring to HUD rules - ✅✅True

✅Y/N Are lead inspections mandatory in pre 1978 housing? - ✅✅No

, ✅A lead inspection is a - ✅✅surface by surface investigation for lead based paint.

✅Two most common ways for lead to enter the body? - ✅✅ingestion and inhalation

✅What body system is most affected by lead poisoning? - ✅✅the nervous system

✅Why are dust samples taken? - ✅✅to identify lead paint hazards; to see if the
contractor cleaned up properly after renovation; to identify a dust hazard from lead that
may not be paint

✅After a final clearance wipe down, a clearance test can begin _________ after the
clean-up. - ✅✅one hour

✅T/F No one should operate the XRF analyzer until they have received radiation
safety training - ✅✅True

✅What does a performance characteristic sheet for an XRF instrument determine? -
✅✅XRF specified range; results that are positive, negative, and inconclusive;
calibration check tolerances

✅A testing combination is a - ✅✅unique combination of room equivalents, building
component types, or substrates

✅An abbreviated test can be performed when - ✅✅the owner agrees; all
components tested are the same in each room equivalent; the component tested is
positive for lead based paint in the first five rooms tested.

✅T/F An XRF calibration check should be performed before an inspection begins; after
the inspection is completed, or at least every 24 hours, whichever occurs first. -
✅✅False

✅Dust wipe media must meet what criteria? - ✅✅ASTM E 1792 laboratory criteria

✅A soil sample from around the drip line of a house resulted in 530 ppm. As a risk
assessor you must explain to the owner what should be done with the soil. - ✅✅soil
where children have contact must be abated; interim controls can be used to eliminate
the present hazard.

✅What is the procedure for clean up of lead dust after abatement or renovation? -
✅✅HEPA vacuum, wet clean, HEPA vacuum again

✅What should a risk assessor do prior to conducting a risk assessment on a house? -
✅✅gather information on the property