SPE Health, Safety & Environmental Regulations 3 — Questions and Answers
Question 1: A production platform detects a H2S concentration of 10 ppm in the work area. According to OSHA guidelines, what action is required at this concentration?
- Immediate evacuation — immediately dangerous to life and health
- Don SCBA and continue work with buddy system
- Workers must be warned and exposure monitored — this is the ceiling limit (Correct answer)
- No action needed; 10 ppm is below all action levels
Correct answer: Workers must be warned and exposure monitored — this is the ceiling limit
OSHA's ceiling limit for H2S is 20 ppm (with a 50 ppm peak for 10 minutes), and 10 ppm is the NIOSH recommended exposure limit requiring monitoring and warning.
Question 2: Under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), what is the reportable quantity for a crude oil spill that triggers immediate notification to the National Response Center?
- 1 gallon
- 42 gallons (1 barrel)
- 100 gallons
- Any quantity that reaches navigable water (Correct answer)
Correct answer: Any quantity that reaches navigable water
Under CERCLA and CWA, any oil discharge that reaches navigable waters or adjoining shorelines in a harmful quantity triggers NRC notification, not a fixed volume threshold.
Question 3: Which of the following best describes the hierarchy of controls for hazard mitigation, listed from most to least effective?
- PPE → Administrative → Engineering → Substitution → Elimination
- Elimination → Substitution → Engineering Controls → Administrative Controls → PPE (Correct answer)
- Administrative → Engineering → Substitution → PPE → Elimination
- Substitution → PPE → Engineering Controls → Administrative → Elimination
Correct answer: Elimination → Substitution → Engineering Controls → Administrative Controls → PPE
The recognized hierarchy of controls prioritizes Elimination, then Substitution, Engineering Controls, Administrative Controls, and PPE as the last resort.
Question 4: Under the Clean Air Act's New Source Performance Standards (NSPS), Subpart OOOO applies emission limits to which petroleum and natural gas sector sources?
- Only crude oil tankers and marine vessels
- Crude oil and natural gas production, processing, transmission, and storage (Correct answer)
- Petroleum refineries and petrochemical plants only
- Coal bed methane wells exclusively
Correct answer: Crude oil and natural gas production, processing, transmission, and storage
NSPS Subpart OOOO (Quad O) covers VOC and methane emissions from crude oil and natural gas production, processing, transmission, and storage equipment.
Question 5: A permit-required confined space entry plan must include which of the following elements per OSHA 29 CFR 1910.146?
- Acceptable entry conditions, atmospheric testing, rescue procedures, and communication procedures (Correct answer)
- Only atmospheric testing and a permit signed by management
- PPE requirements and a post-entry medical examination protocol
- A minimum two-hour pre-entry ventilation period for all entries
Correct answer: Acceptable entry conditions, atmospheric testing, rescue procedures, and communication procedures
29 CFR 1910.146 requires entry permits to specify acceptable entry conditions, atmospheric testing results, rescue/emergency services, and communication procedures.
Question 6: The Emergency Planning and Community Right-to-Know Act (EPCRA) Section 313 requires facilities to report annual releases of toxic chemicals. Which form is used for this reporting?
- Form R (TRI) (Correct answer)
- Form EHS-1
- EPA Form 8700-12
- Tier II report
Correct answer: Form R (TRI)
EPCRA Section 313 Toxics Release Inventory (TRI) reporting is submitted annually on EPA Form R.
Question 7: Under API RP 500, the classification of hazardous areas for electrical equipment selection in petroleum facilities is based primarily on which factors?
- Worker headcount and shift schedule
- Likelihood of flammable vapors being present and their concentration relative to LEL (Correct answer)
- Total BTU content of stored hydrocarbons
- Distance from the nearest population center
Correct answer: Likelihood of flammable vapors being present and their concentration relative to LEL
API RP 500 area classification is based on the probability and duration of the presence of flammable concentrations of vapors relative to their lower explosive limit.
SPE Health, Safety & Environmental Regulations 3
A production platform detects a H2S concentration of 10 ppm in the work area.
According to OSHA guidelines, what action is required at this concentration?