100+ Free EPA Lead Risk Assessor Practice Questions

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Which federal regulation governs lead-based paint activities (inspection, risk assessment, and abatement) in target housing and child-occupied facilities?

40 CFR 745 Subpart L

29 CFR 1926.62

42 USC 4851 (Title X)

HUD 24 CFR Part 35

to track

2026 Statistics

Key Facts: EPA Lead Risk Assessor Exam

16 hours

Risk Assessor Training

40 CFR 745.225 (+ 40-hr inspector prerequisite)

10 μg/ft²

Floor Dust-Lead Hazard

40 CFR 745.65 (2021)

100 μg/ft²

Sill/Trough Dust-Lead Hazard

40 CFR 745.65 (2021)

400 ppm

Soil Hazard — Play Areas

40 CFR 745.65(c)

1,200 ppm

Soil Hazard — Non-Play Bare Soil

40 CFR 745.65(c)

3 years

Record Retention Requirement

40 CFR 745.227(h)(4)

The EPA Lead Risk Assessor is a professional license under 40 CFR 745 Subpart L that authorizes individuals to perform lead hazard risk assessments in pre-1978 housing. Training requires a 40-hour Lead Inspector course plus a 16-hour Risk Assessor course. Key skills include ASTM E1728 dust wipe sampling (floor 10 μg/ft², sill 100 μg/ft² thresholds), ASTM E1727 soil sampling (play area 400 ppm, non-play 1,200 ppm), lab QC via NLLAP-accredited labs, chain-of-custody documentation, and written HUD/EPA-compliant hazard reports.

Sample EPA Lead Risk Assessor Practice Questions

Try these sample questions to test your EPA Lead Risk Assessor exam readiness. Each question includes a detailed explanation. Start the interactive quiz above for the full 100+ question experience with AI tutoring.

1Which federal regulation governs lead-based paint activities (inspection, risk assessment, and abatement) in target housing and child-occupied facilities?

A.40 CFR 745 Subpart L

B.29 CFR 1926.62

C.42 USC 4851 (Title X)

D.HUD 24 CFR Part 35

Explanation: 40 CFR 745 Subpart L (EPA's Lead; Requirements for Lead-Based Paint Activities in Target Housing and Child-Occupied Facilities) establishes the training, certification, work practice, and recordkeeping requirements for inspectors, risk assessors, supervisors, project designers, and abatement workers. 29 CFR 1926.62 is OSHA's construction lead standard; Title X is the enabling legislation; HUD 24 CFR Part 35 covers lead hazard control in HUD-assisted housing.

2Under 40 CFR 745.227(d), which of the following is a required component of a risk assessment?

A.XRF spectrum analysis of all painted surfaces regardless of condition

B.Dust sampling, paint inspection, soil sampling, and a written report

C.Full abatement of all deteriorated paint prior to risk assessment

D.Air monitoring for airborne lead particulate in all rooms

Explanation: 40 CFR 745.227(d) specifies that a risk assessment must include: visual assessment of the dwelling, paint testing or presumption of lead-based paint, dust sampling, soil sampling, and a written risk assessment report. XRF analysis of all surfaces is not required — only paint in deteriorated condition or identified high-risk surfaces must be tested. Abatement is a response action, not part of the assessment itself. Air monitoring is not a standard risk assessment component.

3What is the minimum training requirement to become a certified EPA Lead Risk Assessor?

A.40-hour abatement supervisor course plus one year field experience

B.Lead Inspector course (40 hours) plus a 16-hour Lead Risk Assessor course

C.8-hour renovator refresher training and a 40-hour hazmat course

D.24-hour lead worker training and an online competency test

Explanation: 40 CFR 745.225(c) requires risk assessors to complete an accredited Lead Inspector course (40 hours) as a prerequisite, followed by an accredited 16-hour Lead Risk Assessor training course. The combined training builds inspector skills (paint testing, XRF, sampling) and adds risk characterization, hazard prioritization, and reporting competencies specific to risk assessors.

4According to the 2021 EPA dust-lead hazard standards, what is the hazard level for lead in dust on interior window sills?

A.100 μg/ft²

B.250 μg/ft²

C.400 μg/ft²

D.40 μg/ft²

Explanation: The 2021 EPA dust-lead hazard standards (40 CFR 745.65, effective January 6, 2020 and fully implemented) set the hazard levels at: floors — 10 μg/ft² (later revised; the 2021 updated threshold is 10 μg/ft²), window sills — 100 μg/ft², window troughs (wells) — 100 μg/ft². However, the standards in effect under 40 CFR 745.65(b) as updated by the 2019 rule (effective January 6, 2020) set interior floor at 10 μg/ft² and window sill at 100 μg/ft². Note: The commonly used pre-2019 values were floor 40 μg/ft², sill 250 μg/ft², trough 400 μg/ft². After the 2021 implementation (court-ordered), current values are floor 10 μg/ft², sill 100 μg/ft², trough 100 μg/ft². The question tests the current 2021-implemented sill standard of 100 μg/ft².

5What are the current (post-2021 revision) EPA dust-lead hazard standard levels for interior floors?

A.40 μg/ft²

B.10 μg/ft²

C.25 μg/ft²

D.50 μg/ft²

Explanation: Effective January 6, 2020 (with court order upheld in 2021), EPA lowered the dust-lead hazard standard for floors from 40 μg/ft² to 10 μg/ft² under 40 CFR 745.65. This was a significant change driven by health data showing harm at lower lead levels in children. Risk assessors must apply the current 10 μg/ft² floor standard when evaluating dust wipe sample results.

6Which standard governs the collection of dust-lead wipe samples during a risk assessment?

A.ASTM E1727 (field collection of settled dust samples)

B.ASTM E1728 (collection of settled dust using wipe sampling)

C.NIOSH 7082 (flame AAS method for lead in air)

D.EPA Method TO-1 (volatile organics sampling)

Explanation: ASTM E1728 — Standard Practice for Collection of Settled Dust Samples Using Wipe Sampling Methods for Subsequent Determination of Lead — governs the wipe sampling procedure used in lead risk assessments and clearance testing. ASTM E1727 covers vacuum sampling of settled dust. NIOSH 7082 is an air sampling method. EPA Method TO-1 is for volatile organics.

7During a risk assessment, how should dust wipe samples be collected from interior floors per ASTM E1728?

A.One wipe covering the entire room floor area

B.Wipe a defined area using a pre-wetted wipe in an 'S' or 'Z' pattern, folding the wipe to expose a clean face

C.Vacuum the floor first, then wipe a 12-inch square area with a dry cloth

D.Randomly select three 6×6-inch spots and combine into a composite sample

Explanation: ASTM E1728 specifies that dust wipe samples are collected by wiping a precisely defined area (typically one square foot for floors, one square foot for window sills) using a pre-moistened wipe in an overlapping 'S' or 'Z' pattern. The wipe is folded midway through the sample to expose a clean face and continue collecting dust. This ensures consistent sample collection that can be compared to regulated hazard levels expressed in μg/ft².

8Which ASTM standard governs collection of soil samples for lead analysis during a risk assessment?

A.ASTM E1728

B.ASTM E1749

C.ASTM E1727

D.ASTM E1781

Explanation: ASTM E1727 — Standard Practice for Field Collection of Soil Samples for Lead Determination by Atomic Spectrometry Techniques — governs the collection of soil samples during lead risk assessments. ASTM E1728 covers dust wipe sampling, ASTM E1749 covers chip sampling, and ASTM E1781 covers the use of portable XRF spectrometers.

9Under 40 CFR 745.65, what is the soil-lead hazard level for bare soil in children's play areas?

A.1,200 ppm (mg/kg)

B.400 ppm (mg/kg)

C.800 ppm (mg/kg)

D.5,000 ppm (mg/kg)

Explanation: 40 CFR 745.65(c) establishes two soil-lead hazard levels: 400 ppm for bare soil in play areas (where children are most likely to contact soil through hand-to-mouth activity) and 1,200 ppm for bare soil in non-play areas (e.g., drip zones, yards). The lower threshold for play areas reflects the greater exposure risk to young children in these zones.

10What is the soil-lead hazard level for non-play area bare soil under current EPA standards?

A.400 ppm

B.800 ppm

C.1,200 ppm

D.5,000 ppm

Explanation: 40 CFR 745.65(c) sets the soil-lead hazard threshold for non-play areas (drip zones, foundation perimeters, general yard) at 1,200 ppm (mg/kg). For play areas frequented by children, the lower threshold of 400 ppm applies. Risk assessors must collect composite soil samples per ASTM E1727 and compare results to these area-specific thresholds.

About the EPA Lead Risk Assessor Exam

The EPA Lead Risk Assessor certification authorizes professionals to conduct comprehensive lead hazard evaluations in pre-1978 target housing and child-occupied facilities under 40 CFR 745 Subpart L. Risk assessors collect dust, soil, and paint data and produce written hazard reports recommending control actions.

Questions

50 scored questions

Time Limit

2 hours

Passing Score

70% (varies by state)

Exam Fee

$50–$200 (state-administered) (EPA / State-authorized lead programs)

EPA Lead Risk Assessor Exam Content Outline

25%

Regulatory Framework

40 CFR 745 Subpart L, TSCA Title IV, target housing definitions, state authorization, HUD 24 CFR Part 35

20%

Hazard Identification & Visual Assessment

Deteriorated paint, friction/impact/chewable surfaces, conditions conducive to deterioration, XRF testing, paint presumption

20%

Dust & Soil Sampling

ASTM E1728 wipe sampling, ASTM E1727 soil sampling, composite samples, dust-lead and soil-lead hazard levels

15%

Laboratory QC & Chain of Custody

NLLAP accreditation, field blanks, duplicates, method blanks, chain-of-custody documentation

10%

Hazard Control Recommendations

Interim controls vs. abatement, encapsulation, enclosure, friction-surface treatments, soil cover

10%

Risk Assessment Report

HUD Chapter 5 / 40 CFR 745.227(h) report contents, hazard prioritization, record retention

How to Pass the EPA Lead Risk Assessor Exam

What You Need to Know

Passing score: 70% (varies by state)
Exam length: 50 questions
Time limit: 2 hours
Exam fee: $50–$200 (state-administered)

Keys to Passing

Complete 500+ practice questions
Score 80%+ consistently before scheduling
Focus on highest-weighted sections
Use our AI tutor for tough concepts

EPA Lead Risk Assessor Study Tips from Top Performers

1Master the current EPA dust-lead hazard standards (2021): floor 10 μg/ft², sill 100 μg/ft², trough 100 μg/ft² — many questions test the updated vs. old thresholds

2Know the soil-lead hazard thresholds by area type: play areas 400 ppm, non-play bare soil 1,200 ppm

3Understand ASTM E1728 (dust wipe) vs. E1727 (soil) — each governs different sample types

4Memorize 40 CFR 745.227(d) risk assessment components: visual assessment, paint testing/presumption, dust sampling, soil sampling, written report

5Learn target housing and child-occupied facility definitions and exemptions under TSCA Section 401

6Practice identifying when interim controls vs. abatement is the appropriate recommendation

7Understand chain-of-custody requirements and NLLAP lab QC samples (field blank, duplicate, method blank)

Frequently Asked Questions

What is the prerequisite for the EPA Lead Risk Assessor course?

Candidates must first complete an accredited 40-hour Lead Inspector course before attending the 16-hour Lead Risk Assessor training. The inspector course covers XRF use, paint sampling, and documentation fundamentals that the risk assessor course builds on.

What dust-lead levels are considered hazardous under current EPA standards?

Under the 2019/2021 EPA rule (40 CFR 745.65): floors — 10 μg/ft², window sills — 100 μg/ft², window troughs — 100 μg/ft². These replaced the prior thresholds (40/250/400 μg/ft²) and became fully effective following a 2021 court order upholding the 2019 rule.

What soil-lead levels are hazardous in children's play areas?

Under 40 CFR 745.65, bare soil in children's play areas is a lead hazard at or above 400 ppm. Non-play bare soil areas (drip zones, general yard) are hazardous at or above 1,200 ppm.

Which laboratory accreditation is required for lead analysis?

Samples must be submitted to EPA National Lead Laboratory Accreditation Program (NLLAP)-accredited laboratories. NLLAP labs participate in proficiency testing and use approved analytical methods, ensuring results are defensible for regulatory compliance under 40 CFR 745.227(h).

What must a risk assessment report include?

Per 40 CFR 745.227(h) and HUD Chapter 5: property address, assessment date, risk assessor name and certification number, methods and materials used, all sample locations and results, NLLAP laboratory information, identified lead hazards, and recommended hazard control options (interim controls or abatement). Records must be retained for 3 years.

What is the difference between interim controls and abatement?

Interim controls (e.g., repainting, encapsulation, friction-surface treatments) temporarily reduce lead exposure but do not permanently eliminate the hazard. Abatement (removal, enclosure, replacement) permanently eliminates lead hazards and must be performed by a certified abatement contractor. Risk assessors recommend the appropriate strategy based on hazard severity and occupant vulnerability.

What is TSCA Section 1018 and how does it relate to risk assessment?

TSCA Section 1018 (40 CFR 745 Subpart F) requires sellers of pre-1978 housing to disclose known lead-based paint and hazard information to buyers before signing a purchase contract, provide the EPA pamphlet 'Protect Your Family From Lead in Your Home,' and obtain a signed acknowledgment (certificate of disclosure). Risk assessment reports are among the records sellers must disclose to prospective buyers.