CSLB Environmental Regulations and Compliance 2 — Questions and Answers
Question 1: What is the primary purpose of a Stormwater Pollution Prevention Plan (SWPPP) on a California construction site?
- To outline emergency procedures for worker injuries during wet weather
- To identify potential pollution sources and specify BMPs to prevent stormwater contamination (Correct answer)
- To calculate the total volume of stormwater that will flow across the site
- To satisfy OSHA wet weather construction safety requirements
Correct answer: To identify potential pollution sources and specify BMPs to prevent stormwater contamination
A SWPPP identifies potential pollution sources on a construction site and specifies Best Management Practices (BMPs) to prevent pollutants from entering stormwater.
Question 2: Which federal regulation requires contractors to submit written notification before demolishing or renovating a building that may contain regulated asbestos?
- Toxic Substances Control Act (TSCA) Section 6
- Clean Water Act National Pretreatment Standards
- National Emission Standards for Hazardous Air Pollutants (NESHAP) — Asbestos Rule (Correct answer)
- Resource Conservation and Recovery Act (RCRA) Subpart K
Correct answer: National Emission Standards for Hazardous Air Pollutants (NESHAP) — Asbestos Rule
The NESHAP Asbestos Rule under the Clean Air Act requires written notification to the local air quality agency before demolition or renovation of facilities with regulated asbestos.
Question 3: Under EPA regulations, what lead concentration in paint defines 'lead-based paint,' triggering RRP Rule requirements?
- 0.06% lead by weight (600 ppm) or more
- 0.5% lead by weight (5,000 ppm) or more (Correct answer)
- 1.5% lead by weight (15,000 ppm) or more
- 2.0% lead by weight (20,000 ppm) or more
Correct answer: 0.5% lead by weight (5,000 ppm) or more
EPA defines lead-based paint as paint containing ≥0.5% lead by weight (5,000 ppm) or ≥1.0 mg/cm², which triggers RRP Rule lead-safe work practice requirements.
Question 4: When a contractor encounters suspected contaminated soil during excavation in California, what is the required FIRST response?
- Continue excavating and collect soil samples for later laboratory analysis
- Mix contaminated soil with clean fill to dilute concentrations to acceptable levels
- Stop work, secure the area, and notify the appropriate regulatory agency (Correct answer)
- Remove the soil immediately to a municipal landfill with hazardous material labeling
Correct answer: Stop work, secure the area, and notify the appropriate regulatory agency
Upon discovering potentially contaminated soil, contractors must stop work, secure the area to prevent further exposure or spread, and notify regulatory authorities before proceeding.
Question 5: California's Hazardous Materials Business Plan (HMBP) program requires submission when a business or contractor:
- Uses any chemical product on a job site, regardless of quantity
- Operates exclusively in a designated industrial or commercial zone
- Stores hazardous materials at or above specified threshold quantities (Correct answer)
- Employs more than 10 workers who handle chemical substances
Correct answer: Stores hazardous materials at or above specified threshold quantities
California's HMBP program requires businesses to submit a plan when they handle or store hazardous materials at or above specific regulatory threshold quantities.
Question 6: In the context of construction stormwater management, what does 'Best Management Practice' (BMP) refer to?
- The most technologically advanced and expensive erosion control system available
- The federal minimum infrastructure requirements for construction site drainage
- Scheduling and budget methods contractors use to manage rainy-season work
- Techniques and controls used to prevent or reduce pollutant discharge from construction sites (Correct answer)
Correct answer: Techniques and controls used to prevent or reduce pollutant discharge from construction sites
BMPs are schedules, activities, prohibitions, maintenance procedures, and practices designed to prevent or reduce pollutants from entering stormwater at construction sites.
Question 7: Under CERCLA (Superfund), a contractor who disposes of hazardous materials at a site that later requires cleanup can be held liable under what legal standard?
- Negligence — only if failure to follow industry standard of care is proven in court
- Strict liability — regardless of fault or the level of care the contractor exercised (Correct answer)
- Vicarious liability — only if the property owner was also found negligent
- Contractual liability — only if no indemnification clause was included in the contract
Correct answer: Strict liability — regardless of fault or the level of care the contractor exercised
CERCLA imposes strict, joint, and several liability on potentially responsible parties, meaning a contractor can be liable for full cleanup costs regardless of fault or due care.
CSLB Environmental Regulations and Compliance 2
What is the primary purpose of a Stormwater Pollution Prevention Plan (SWPPP) on a California construction site?