U1 UST Installation & Retrofitting Complete Exam Study Guide Underground Storage Tank
Systems Certification – ICC U1 Exam Prep 300 Questions with Verified Answers & Detailed
Rationales All Core Domains Covered A+ Graded
TABLE OF CONTENTS
Section Topic Questions
---------------------------
1 Site Preparation & Layout 1–35
2 Materials & Tank Construction 36–60
3 Excavation, Bedding & Backfill 61–100
4 Placement of Equipment 101–140
5 Secondary Containment 141–160
6 Vapor Recovery Systems 161–175
7 Tank Decommissioning & Cleaning 176–190
8 Cathodic Protection 191–215
9 Test Methods & Testing Requirements 216–250
10 Health & Safety for UST Workers 251–280
11 Regulatory Compliance & Documentation 281–300
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EXAM OVERVIEW
Exam: ICC U1 Underground Storage Tank (UST) Installation/Retrofitting Certification
Total Questions: 300 Multiple-Choice Questions
,Official Exam: 70 questions 1.5-hour time limit Closed book $75 exam fee
Suggested Passing Score: 77% (231 out of 300)
Reference Standards:
- PEI/RP 100 – Recommended Practices for Installation of Underground Liquid Storage Systems
- PEI/RP 300 – Installation and Testing of Vapor Recovery Systems
- NFPA 30 – Flammable and Combustible Liquids Code
- NFPA 30A – Code for Motor Fuel Dispensing Facilities
- EPA 40 C.F.R. Part 280 – Technical Standards for USTs
- OSHA – Health and Safety Regulations
Exam Content Areas
Content Area % of Exam
-------------------------
Site Preparation 16%
Materials 7%
Excavation, Bedding & Backfill 19%
Placement of Equipment 19%
Secondary Containment 7%
Vapor Recovery Systems 3%
Tank Decommissioning & Cleaning 3%
Cathodic Protection 7%
Test Methods & Testing Requirements 6%
Health & Safety for UST Workers 13%
,---
SECTION 1: SITE PREPARATION & LAYOUT
Questions 1–35
Q1. What is the primary purpose of an underground storage tank (UST) system?
A. To store drinking water for municipal supply
B. To store petroleum or hazardous substances underground
C. To treat wastewater before discharge
D. To transport chemicals between facilities
Correct Answer: B
Rationale: UST systems are designed to store petroleum products or certain hazardous
substances below ground level, typically for fuel storage and distribution. They are not used for
drinking water storage, wastewater treatment, or chemical transport.
---
Q2. Which federal agency primarily regulates underground storage tanks in the United States?
A. OSHA (Occupational Safety and Health Administration)
B. EPA (Environmental Protection Agency)
C. FDA (Food and Drug Administration)
D. FAA (Federal Aviation Administration)
, Correct Answer: B
Rationale: The Environmental Protection Agency (EPA) regulates UST systems under 40 CFR Part
280. OSHA regulates worker safety, not UST systems directly.
---
Q3. Under 40 CFR Part 280, what is the primary purpose of release detection for UST systems?
A. To meet local fire code requirements
B. To identify a release before it causes extensive environmental damage
C. To maintain insurance premiums
D. To satisfy tank manufacturer warranties
Correct Answer: B
Rationale: Federal UST regulations require release detection to discover leaks early, minimizing
soil and groundwater contamination. The goal is environmental protection, not just code
compliance or insurance.
---
Q4. One of the most significant causes of leaks in underground liquid storage systems is:
A. Normal wear and tear
B. Improper installation
Systems Certification – ICC U1 Exam Prep 300 Questions with Verified Answers & Detailed
Rationales All Core Domains Covered A+ Graded
TABLE OF CONTENTS
Section Topic Questions
---------------------------
1 Site Preparation & Layout 1–35
2 Materials & Tank Construction 36–60
3 Excavation, Bedding & Backfill 61–100
4 Placement of Equipment 101–140
5 Secondary Containment 141–160
6 Vapor Recovery Systems 161–175
7 Tank Decommissioning & Cleaning 176–190
8 Cathodic Protection 191–215
9 Test Methods & Testing Requirements 216–250
10 Health & Safety for UST Workers 251–280
11 Regulatory Compliance & Documentation 281–300
---
EXAM OVERVIEW
Exam: ICC U1 Underground Storage Tank (UST) Installation/Retrofitting Certification
Total Questions: 300 Multiple-Choice Questions
,Official Exam: 70 questions 1.5-hour time limit Closed book $75 exam fee
Suggested Passing Score: 77% (231 out of 300)
Reference Standards:
- PEI/RP 100 – Recommended Practices for Installation of Underground Liquid Storage Systems
- PEI/RP 300 – Installation and Testing of Vapor Recovery Systems
- NFPA 30 – Flammable and Combustible Liquids Code
- NFPA 30A – Code for Motor Fuel Dispensing Facilities
- EPA 40 C.F.R. Part 280 – Technical Standards for USTs
- OSHA – Health and Safety Regulations
Exam Content Areas
Content Area % of Exam
-------------------------
Site Preparation 16%
Materials 7%
Excavation, Bedding & Backfill 19%
Placement of Equipment 19%
Secondary Containment 7%
Vapor Recovery Systems 3%
Tank Decommissioning & Cleaning 3%
Cathodic Protection 7%
Test Methods & Testing Requirements 6%
Health & Safety for UST Workers 13%
,---
SECTION 1: SITE PREPARATION & LAYOUT
Questions 1–35
Q1. What is the primary purpose of an underground storage tank (UST) system?
A. To store drinking water for municipal supply
B. To store petroleum or hazardous substances underground
C. To treat wastewater before discharge
D. To transport chemicals between facilities
Correct Answer: B
Rationale: UST systems are designed to store petroleum products or certain hazardous
substances below ground level, typically for fuel storage and distribution. They are not used for
drinking water storage, wastewater treatment, or chemical transport.
---
Q2. Which federal agency primarily regulates underground storage tanks in the United States?
A. OSHA (Occupational Safety and Health Administration)
B. EPA (Environmental Protection Agency)
C. FDA (Food and Drug Administration)
D. FAA (Federal Aviation Administration)
, Correct Answer: B
Rationale: The Environmental Protection Agency (EPA) regulates UST systems under 40 CFR Part
280. OSHA regulates worker safety, not UST systems directly.
---
Q3. Under 40 CFR Part 280, what is the primary purpose of release detection for UST systems?
A. To meet local fire code requirements
B. To identify a release before it causes extensive environmental damage
C. To maintain insurance premiums
D. To satisfy tank manufacturer warranties
Correct Answer: B
Rationale: Federal UST regulations require release detection to discover leaks early, minimizing
soil and groundwater contamination. The goal is environmental protection, not just code
compliance or insurance.
---
Q4. One of the most significant causes of leaks in underground liquid storage systems is:
A. Normal wear and tear
B. Improper installation
