CO Environmental Remediation
Contractor Exam Practice Questions
And Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf.
1. A Colorado environmental remediation contractor is preparing to
remove soil contaminated with a listed hazardous waste. Before
beginning excavation, which principle is most important when
determining whether the material must be managed under
hazardous-waste requirements?
A. The material is regulated only if it is liquid
B. The material is regulated only if it has a commercial value
C. The contractor must determine whether the waste is listed or exhibits
a hazardous-waste characteristic under applicable regulations
D. The material automatically becomes nonhazardous when excavated
The regulatory determination must be based on applicable hazardous-
waste identification requirements, including whether the waste is listed
or exhibits a characteristic such as ignitability, corrosivity, reactivity, or
toxicity. Colorado's hazardous-waste program follows a comprehensive
waste-management framework.
, 2. Under Colorado's hazardous-waste program, which agency has
primary responsibility for administering state environmental
requirements concerning hazardous waste and environmental
cleanup?
A. Colorado Department of Transportation
B. Colorado Division of Fire Prevention and Control
C. Colorado Department of Labor and Employment
D. Colorado Department of Public Health and Environment
The Colorado Department of Public Health and Environment administers
major environmental programs involving hazardous waste,
environmental cleanup, solid waste, and related environmental controls.
3. A contractor encounters soil and groundwater contaminated by a
historical hazardous-waste release. What term most accurately
describes the materials being managed as part of the cleanup?
A. Construction waste
B. Municipal waste
C. Remediation waste
D. Recycled aggregate
Remediation waste includes solid and hazardous wastes as well as
contaminated environmental media such as groundwater, surface water,
soils, sediments, and debris that are managed to implement a cleanup.
, 4. A contractor intends to operate a facility specifically for treatment,
storage, or disposal of hazardous waste in Colorado. Which
requirement generally applies?
A. No authorization is necessary if the facility operates for fewer than 30
days
B. Only a local building permit is required
C. A hazardous-waste permit is generally required for the facility
D. Only a contractor's business license is required
Colorado law generally prohibits operation of a hazardous-waste
treatment, storage, or disposal site or facility without a department-
issued permit, subject to applicable regulatory exceptions.
5. During remediation, a contractor plans to excavate contaminated
soil and transport it to an approved disposal facility. What is the
contractor's best first step regarding the excavated material?
A. Mix it with clean soil to reduce its concentration
B. Dispose of it as ordinary construction debris
C. Characterize the material sufficiently to determine its regulatory
status and proper management requirements
D. Burn it on site
Proper characterization is fundamental to determining how
contaminated soil must be handled, transported, treated, stored, or
disposed of. Remediation regulations require adequate knowledge of
hazardous remediation waste before management decisions are made.
, 6. Which federal law provides the principal regulatory framework for
hazardous-waste management that is implemented in Colorado
through an authorized state program?
A. Clean Air Act
B. Clean Water Act
C. Resource Conservation and Recovery Act (RCRA)
D. Federal Insecticide, Fungicide, and Rodenticide Act
RCRA establishes the principal federal framework for controlling
hazardous waste from generation through treatment, storage, and
disposal, while Colorado administers an authorized state hazardous-
waste program.
7. What is the primary purpose of hazardous-waste characterization
before contaminated material is transported from a remediation
site?
A. To determine the contractor's profit margin
B. To determine the property's assessed value
C. To establish appropriate handling, packaging, transportation,
treatment, and disposal requirements
D. To eliminate the need for documentation
Characterization identifies the physical and chemical properties that
determine appropriate management requirements and helps prevent
incompatible or improperly classified waste from entering the
transportation or disposal system.
Contractor Exam Practice Questions
And Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf.
1. A Colorado environmental remediation contractor is preparing to
remove soil contaminated with a listed hazardous waste. Before
beginning excavation, which principle is most important when
determining whether the material must be managed under
hazardous-waste requirements?
A. The material is regulated only if it is liquid
B. The material is regulated only if it has a commercial value
C. The contractor must determine whether the waste is listed or exhibits
a hazardous-waste characteristic under applicable regulations
D. The material automatically becomes nonhazardous when excavated
The regulatory determination must be based on applicable hazardous-
waste identification requirements, including whether the waste is listed
or exhibits a characteristic such as ignitability, corrosivity, reactivity, or
toxicity. Colorado's hazardous-waste program follows a comprehensive
waste-management framework.
, 2. Under Colorado's hazardous-waste program, which agency has
primary responsibility for administering state environmental
requirements concerning hazardous waste and environmental
cleanup?
A. Colorado Department of Transportation
B. Colorado Division of Fire Prevention and Control
C. Colorado Department of Labor and Employment
D. Colorado Department of Public Health and Environment
The Colorado Department of Public Health and Environment administers
major environmental programs involving hazardous waste,
environmental cleanup, solid waste, and related environmental controls.
3. A contractor encounters soil and groundwater contaminated by a
historical hazardous-waste release. What term most accurately
describes the materials being managed as part of the cleanup?
A. Construction waste
B. Municipal waste
C. Remediation waste
D. Recycled aggregate
Remediation waste includes solid and hazardous wastes as well as
contaminated environmental media such as groundwater, surface water,
soils, sediments, and debris that are managed to implement a cleanup.
, 4. A contractor intends to operate a facility specifically for treatment,
storage, or disposal of hazardous waste in Colorado. Which
requirement generally applies?
A. No authorization is necessary if the facility operates for fewer than 30
days
B. Only a local building permit is required
C. A hazardous-waste permit is generally required for the facility
D. Only a contractor's business license is required
Colorado law generally prohibits operation of a hazardous-waste
treatment, storage, or disposal site or facility without a department-
issued permit, subject to applicable regulatory exceptions.
5. During remediation, a contractor plans to excavate contaminated
soil and transport it to an approved disposal facility. What is the
contractor's best first step regarding the excavated material?
A. Mix it with clean soil to reduce its concentration
B. Dispose of it as ordinary construction debris
C. Characterize the material sufficiently to determine its regulatory
status and proper management requirements
D. Burn it on site
Proper characterization is fundamental to determining how
contaminated soil must be handled, transported, treated, stored, or
disposed of. Remediation regulations require adequate knowledge of
hazardous remediation waste before management decisions are made.
, 6. Which federal law provides the principal regulatory framework for
hazardous-waste management that is implemented in Colorado
through an authorized state program?
A. Clean Air Act
B. Clean Water Act
C. Resource Conservation and Recovery Act (RCRA)
D. Federal Insecticide, Fungicide, and Rodenticide Act
RCRA establishes the principal federal framework for controlling
hazardous waste from generation through treatment, storage, and
disposal, while Colorado administers an authorized state hazardous-
waste program.
7. What is the primary purpose of hazardous-waste characterization
before contaminated material is transported from a remediation
site?
A. To determine the contractor's profit margin
B. To determine the property's assessed value
C. To establish appropriate handling, packaging, transportation,
treatment, and disposal requirements
D. To eliminate the need for documentation
Characterization identifies the physical and chemical properties that
determine appropriate management requirements and helps prevent
incompatible or improperly classified waste from entering the
transportation or disposal system.
