CSM Health & Safety Protocols 2 — Questions and Answers
Question 1: When working near an active stormwater detention pond, what minimum safety perimeter is typically recommended to prevent falls into water?
- 1 foot
- 3 feet
- 6 feet (Correct answer)
- 10 feet
Correct answer: 6 feet
A 6-foot safety perimeter from the edge of water hazards is a standard OSHA-aligned recommendation to prevent accidental falls.
Question 2: Which pathogen is most commonly associated with exposure to stormwater runoff containing animal feces and poses a risk to field personnel?
- Legionella pneumophila
- E. coli O157:H7 (Correct answer)
- Staphylococcus aureus
- Clostridium botulinum
Correct answer: E. coli O157:H7
E. coli O157:H7, shed in animal and human feces, is a leading waterborne pathogen found in stormwater runoff that threatens field worker health.
Question 3: A stormwater inspector notices blue-green algae (cyanobacteria) blooms in a retention basin. What is the PRIMARY immediate action?
- Collect a water sample with bare hands
- Continue inspection without PPE
- Restrict access and notify supervisors (Correct answer)
- Add chlorine tablets directly to the pond
Correct answer: Restrict access and notify supervisors
Cyanobacteria can produce hepatotoxic and neurotoxic compounds, so restricting access and notifying supervisors is the correct first response.
Question 4: Under OSHA's Hazard Communication Standard (HazCom), what document must be available on-site for all hazardous chemicals used in stormwater treatment?
- Material Transfer Agreement
- Safety Data Sheet (SDS) (Correct answer)
- Environmental Impact Statement
- Discharge Monitoring Report
Correct answer: Safety Data Sheet (SDS)
OSHA HazCom requires Safety Data Sheets (SDS) to be immediately accessible to workers for every hazardous chemical present on the job site.
Question 5: Which type of confined space classification applies to a stormwater manhole that has a hazardous atmosphere but does not require a permit for entry?
- Permit-required confined space
- Non-permit confined space (Correct answer)
- Alternate entry confined space
- Restricted access confined space
Correct answer: Non-permit confined space
A non-permit confined space has no hazardous atmosphere or other recognized serious hazards and does not require a written entry permit.
Question 6: During sediment basin cleanout operations, heavy equipment operators are at risk for which condition caused by whole-body vibration over extended shifts?
- Carpal tunnel syndrome
- Raynaud's phenomenon
- Lower back musculoskeletal disorders (Correct answer)
- Heat stroke
Correct answer: Lower back musculoskeletal disorders
Prolonged whole-body vibration from heavy equipment is a known cause of lower back musculoskeletal disorders in operators.
Question 7: What is the recommended minimum frequency for atmospheric testing in a permit-required confined space during continuous occupation?
- Once at entry only
- Every 2 hours
- Continuously or at frequent intervals (Correct answer)
- Once per shift
Correct answer: Continuously or at frequent intervals
OSHA 29 CFR 1910.146 requires continuous or frequent atmospheric monitoring throughout the duration of work in a permit-required confined space.
CSM Health & Safety Protocols 2
When working near an active stormwater detention pond, what minimum safety perimeter is typically recommended to prevent falls into water?