CESCO Air Quality Regulations (CAA) 2

Question 1

In an attainment area, what potential-to-emit threshold for a criteria pollutant generally makes a stationary source 'major' for Title V operating permit purposes?

Accepted Answer

100 tons per year

Answer

Under Title V, a source with potential to emit 100 tpy or more of any air pollutant is generally a major source in attainment areas.

Question 2

A facility emits 8 tpy of toluene and 20 tpy of combined hazardous air pollutants (HAPs). Is it a major HAP source under Section 112?

Accepted Answer

No, it is below both the 10 tpy single-HAP and 25 tpy combined-HAP thresholds

Answer

A major HAP source has PTE of 10 tpy of any single HAP or 25 tpy of any combination of HAPs, and this facility is below both.

Question 3

Which control technology standard must a new major source in a nonattainment area meet under Nonattainment New Source Review?

Accepted Answer

Lowest Achievable Emission Rate (LAER)

Answer

Nonattainment NSR requires LAER, the most stringent rate achieved in practice, without considering cost.

Question 4

Besides LAER, what other key requirement must a new major source in a nonattainment area satisfy?

Accepted Answer

Obtain emission offsets from existing sources

Answer

Nonattainment NSR requires emission reductions (offsets) from other sources so the area still makes reasonable further progress.

Question 5

Prevention of Significant Deterioration (PSD) permitting applies to new major sources or major modifications located in which type of area?

Accepted Answer

Attainment or unclassifiable areas

Answer

PSD protects air quality in areas already meeting the NAAQS (attainment) or that cannot be classified.

CESCO - Certified Environmental, Safety and Compliance Officer Practice Test

CESCO - Certified Environmental, Safety and Compliance Officer Practice Test

CESCO Air Quality Regulations (CAA) 2