MRS Regulatory Compliance & Industry Standards 2 — Questions and Answers
Question 1: According to EPA guidelines, what is the primary criterion for determining that mold remediation was successful?
- Mold spore counts fall below a specific numerical threshold
- Visual inspection confirms no visible mold growth or moldy odors (Correct answer)
- Air sampling returns negative results
- Client signs off that they are satisfied with the work
Correct answer: Visual inspection confirms no visible mold growth or moldy odors
EPA guidelines emphasize that successful remediation is primarily determined by visual inspection confirming no visible mold growth, moisture problems, or moldy odors remain.
Question 2: For large mold remediation areas greater than 100 square feet, what minimum respiratory protection do EPA and OSHA guidelines recommend?
- N95 disposable respirator
- Half-face air-purifying respirator with HEPA cartridges (Correct answer)
- Powered air-purifying respirator (PAPR) or supplied-air respirator
- No respiratory protection is required for trained workers
Correct answer: Half-face air-purifying respirator with HEPA cartridges
For large remediation projects exceeding 100 square feet, EPA and OSHA guidelines recommend at minimum a half-face air-purifying respirator with HEPA filtration to protect against mold spore inhalation.
Question 3: What is the primary role of an Industrial Hygienist (IH) in a mold remediation project?
- To perform the physical mold removal and demo work
- To provide independent assessment, sampling, and clearance testing (Correct answer)
- To install containment barriers and negative pressure equipment
- To dispose of contaminated building materials
Correct answer: To provide independent assessment, sampling, and clearance testing
An Industrial Hygienist provides independent assessment, designs the remediation protocol, collects samples, and performs clearance testing — serving as an objective third party separate from the remediator.
Question 4: In the context of IICRC S520, what is a mold remediation 'Protocol'?
- A legal agreement between the client and contractor
- A government-mandated procedure required by law
- A written document specifying the scope and procedures for remediation (Correct answer)
- An emergency response plan for sudden mold outbreaks
Correct answer: A written document specifying the scope and procedures for remediation
In IICRC S520, a protocol is a written document prepared by a qualified assessor that specifies the extent of contamination, scope of work, and procedures to be followed during remediation.
Question 5: According to EPA guidelines, what size mold problem can typically be addressed by building maintenance staff without specialized contractors?
- Less than 1 square foot
- Less than 10 square feet (Correct answer)
- Less than 25 square feet
- Less than 100 square feet
Correct answer: Less than 10 square feet
EPA guidelines suggest that small mold problems of less than 10 square feet can typically be handled by trained building maintenance staff using appropriate protective equipment.
Question 6: Under OSHA's Hazard Communication Standard, which document must a mold remediation contractor maintain on site during a project?
- EPA Air Quality Index report
- Safety Data Sheets (SDS) for all chemicals used on site (Correct answer)
- OSHA Form 300 injury log
- State environmental impact assessment
Correct answer: Safety Data Sheets (SDS) for all chemicals used on site
Under OSHA's Hazard Communication Standard (29 CFR 1910.1200), contractors must maintain Safety Data Sheets on site for all hazardous chemicals used during remediation activities.
Question 7: The concept of 'chain of custody' in mold remediation primarily applies to which of the following?
- Worker certification documentation and training records
- Mold samples collected during assessment and clearance testing (Correct answer)
- Building permits and structural inspection records
- Client contracts and payment records
Correct answer: Mold samples collected during assessment and clearance testing
Chain of custody ensures that mold samples are properly collected, labeled, transported, and analyzed with documented accountability, maintaining sample integrity for legal and scientific purposes.
MRS Regulatory Compliance & Industry Standards 2
According to EPA guidelines, what is the primary criterion for determining that mold remediation was successful?