CEI Hazardous Materials & Remediation Flashcards
6 cards from real CEI practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 CEI Hazardous Materials & Remediation flashcards as text
Which federal law primarily governs the cleanup of uncontrolled hazardous waste sites in the United States?
Answer: CERCLA
CERCLA (Superfund) authorizes federal cleanup of uncontrolled hazardous waste sites and establishes liability for responsible parties.
What does the term 'NAPL' refer to in environmental remediation?
Answer: Non-Aqueous Phase Liquid
NAPL (Non-Aqueous Phase Liquid) refers to organic liquids that do not readily dissolve in water and are commonly found as subsurface contaminants.
Which personal protective equipment (PPE) level provides the highest degree of respiratory and skin protection at a hazardous site?
Answer: Level A
Level A PPE includes a fully encapsulating chemical protective suit with SCBA and is required when the highest level of respiratory and skin protection is needed.
What is the primary purpose of a Remedial Investigation/Feasibility Study (RI/FS) under CERCLA?
Answer: To characterize site conditions and evaluate cleanup alternatives
An RI/FS characterizes the nature and extent of contamination and evaluates potential cleanup alternatives to support remedy selection.
Which type of soil remediation technology uses electrical current to move contaminants through saturated soil toward electrodes for removal?
Answer: Electrokinetic remediation
Electrokinetic remediation applies low-level direct current to move ionic contaminants and water through low-permeability soils toward extraction electrodes.
What is the correct definition of 'source control' in the context of hazardous site remediation?
Answer: Preventing contaminants from migrating away from the primary release area
Source control measures prevent contaminants at the primary release area from spreading further into the environment via migration pathways.