Emissions Control & Environmental Compliance Flashcards
7 cards from real SAW practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Emissions Control & Environmental Compliance flashcards as text
What is the significance of a 'threshold planning quantity' (TPQ) under EPCRA Section 302 for SAW facilities storing flux chemicals?
Answer: Exceeding the TPQ for an extremely hazardous substance triggers emergency planning requirements
When a facility stores an extremely hazardous substance at or above its TPQ, it must notify the LEPC and participate in local emergency planning.
In SAW operations, continuous emissions monitoring systems (CEMS) may be required by permit. Which parameter is MOST commonly monitored by CEMS in metal fabrication?
Answer: Particulate matter concentration in exhaust streams
CEMS for particulate matter measures real-time dust concentrations in exhaust streams to demonstrate ongoing compliance with emission limits.
Which welding consumable characteristic most directly affects the generation rate of iron oxide fume in SAW?
Answer: Wire diameter and chemistry combined with flux basicity index
Wire chemistry and diameter determine iron content and surface area, while flux basicity index affects arc stability and fume generation chemistry.
A SAW facility receives a Notice of Violation (NOV) from the state environmental agency for exceeding permitted particulate emissions. The FIRST regulatory step the facility must typically take is:
Answer: Submit a written response and corrective action plan within the timeframe specified in the NOV
NOVs typically require a formal written response and corrective action plan within a specified timeframe (often 30 days) to avoid escalating enforcement.
Which practice helps a SAW facility demonstrate 'due diligence' in environmental compliance during a regulatory inspection?
Answer: Maintaining complete, accurate, and current environmental monitoring records and training logs
Comprehensive, up-to-date records of monitoring results, maintenance, and training are the primary evidence of a facility's commitment to compliance.
Under the Clean Air Act Title V operating permit program, a SAW facility classified as a major source must submit compliance certifications:
Answer: Annually to the permitting authority
Title V permits require annual compliance certifications submitted to the state/local permitting authority confirming the facility met all permit conditions.
When a SAW facility replaces a fume extraction filter, the spent filter containing metal fumes must be evaluated under RCRA. The key determination is whether the filter exhibits which hazardous waste characteristic?
Answer: Toxicity (D011 – metals via TCLP)
Metal-laden spent filters are evaluated for the toxicity characteristic using TCLP; if metals leach above regulatory limits, the waste is classified as hazardous (D-codes for metals).