WASHINGTON UST SITE ASSESSOR EXAM 2025/2026
VERIFIED QUESTIONS BANK AND CORRECT
ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS <BRAND NEW VERSION>
Washington UST Site Assessor Exam – 100 Questions & Answers
Q1.
What does UST stand for?
A. Underground Storage Tank
B. Underwater Storage Tank
C. Uniform Storage Tank
D. Unidentified Storage Tank
Q2.
The main purpose of a site assessment is to:
A. Increase property value
B. Identify potential contamination
C. Locate new UST installations
D. Reduce excavation costs
Q3.
Which federal agency regulates USTs?
A. Department of Energy
B. Environmental Protection Agency (EPA)
C. Department of Transportation
D. Occupational Safety and Health Administration
Q4.
In Washington, UST regulations are enforced by:
A. Department of Ecology
B. Department of Health
,C. Department of Agriculture
D. Department of Licensing
Q5.
Which of the following must be assessed during a UST site check?
A. Soil, groundwater, and vapor
B. Air quality only
C. Plant life density
D. Rainwater drainage
Q6.
What is the minimum capacity for a tank to be considered a regulated UST?
A. 55 gallons
B. 100 gallons
C. 110 gallons
D. 200 gallons
Q7.
Which type of UST is exempt from EPA regulations?
A. Heating oil tanks for on-site use
B. Gasoline tanks at service stations
C. Diesel tanks at truck stops
D. Aviation fuel tanks
Q8.
The primary contaminant of concern from leaking USTs is:
A. Oxygen
B. Petroleum hydrocarbons
C. Sulfur dioxide
D. Chlorine
Q9.
What is the first step in a site assessment?
A. Collect groundwater samples
B. Review historical records
C. Install monitoring wells
D. Excavate soil
, Q10.
Monitoring wells are installed primarily to:
A. Measure rainfall
B. Sample groundwater quality
C. Reduce tank pressure
D. Estimate soil density
Q11.
UST release detection records must be kept for:
A. 3 years
B. 1 year
C. 5 years
D. 10 years
Q12.
What does LUST stand for?
A. Limited Underground Storage Tank
B. Leaking Underground Storage Tank
C. Licensed Underground Storage Tank
D. Low Underground Storage Tank
Q13.
Which of the following is a common indicator of a UST release?
A. Increased vegetation growth
B. Petroleum odors in soil
C. Presence of sand
D. Soil erosion
Q14.
During a UST closure, a site assessment must be performed:
A. Only if required by the tank owner
B. Always
C. Only for tanks larger than 1,000 gallons
D. Only if requested by EPA
Q15.
VERIFIED QUESTIONS BANK AND CORRECT
ANSWERS WITH RATIONALES || 100%
GUARANTEED PASS <BRAND NEW VERSION>
Washington UST Site Assessor Exam – 100 Questions & Answers
Q1.
What does UST stand for?
A. Underground Storage Tank
B. Underwater Storage Tank
C. Uniform Storage Tank
D. Unidentified Storage Tank
Q2.
The main purpose of a site assessment is to:
A. Increase property value
B. Identify potential contamination
C. Locate new UST installations
D. Reduce excavation costs
Q3.
Which federal agency regulates USTs?
A. Department of Energy
B. Environmental Protection Agency (EPA)
C. Department of Transportation
D. Occupational Safety and Health Administration
Q4.
In Washington, UST regulations are enforced by:
A. Department of Ecology
B. Department of Health
,C. Department of Agriculture
D. Department of Licensing
Q5.
Which of the following must be assessed during a UST site check?
A. Soil, groundwater, and vapor
B. Air quality only
C. Plant life density
D. Rainwater drainage
Q6.
What is the minimum capacity for a tank to be considered a regulated UST?
A. 55 gallons
B. 100 gallons
C. 110 gallons
D. 200 gallons
Q7.
Which type of UST is exempt from EPA regulations?
A. Heating oil tanks for on-site use
B. Gasoline tanks at service stations
C. Diesel tanks at truck stops
D. Aviation fuel tanks
Q8.
The primary contaminant of concern from leaking USTs is:
A. Oxygen
B. Petroleum hydrocarbons
C. Sulfur dioxide
D. Chlorine
Q9.
What is the first step in a site assessment?
A. Collect groundwater samples
B. Review historical records
C. Install monitoring wells
D. Excavate soil
, Q10.
Monitoring wells are installed primarily to:
A. Measure rainfall
B. Sample groundwater quality
C. Reduce tank pressure
D. Estimate soil density
Q11.
UST release detection records must be kept for:
A. 3 years
B. 1 year
C. 5 years
D. 10 years
Q12.
What does LUST stand for?
A. Limited Underground Storage Tank
B. Leaking Underground Storage Tank
C. Licensed Underground Storage Tank
D. Low Underground Storage Tank
Q13.
Which of the following is a common indicator of a UST release?
A. Increased vegetation growth
B. Petroleum odors in soil
C. Presence of sand
D. Soil erosion
Q14.
During a UST closure, a site assessment must be performed:
A. Only if required by the tank owner
B. Always
C. Only for tanks larger than 1,000 gallons
D. Only if requested by EPA
Q15.
