Texas Environmental Remediation
Specialist Exam With Actual Questions
& Verified Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed 100% Pass 2026/Latest
Update/Instant Download Pdf
1. What is the primary federal law governing hazardous waste
management?
A. Clean Water Act
B. RCRA
C. CERCLA
D. TSCA
Rationale: RCRA (Resource Conservation and Recovery Act)
governs hazardous waste from cradle to grave.
2. A Phase I Environmental Site Assessment primarily identifies:
A. Remediation costs
B. Subsurface contamination
C. Recognized Environmental Conditions (RECs)
D. Cleanup technologies
Rationale: A Phase I ESA focuses on historical and current uses
indicating RECs.
3. The main purpose of a vapor intrusion assessment is to:
A. Measure air quality outdoors
B. Detect contaminants migrating into indoor air
, C. Determine water toxicity
D. Assess noise pollution
Rationale: Vapor intrusion assessments evaluate soil gas or
groundwater vapors entering buildings.
4. Groundwater flow direction is typically determined by:
A. Wind patterns
B. Hydraulic gradient
C. Rainfall only
D. Soil color
Rationale: Groundwater flows from high to low hydraulic head,
forming the gradient.
5. Which contaminant is a common indicator of petroleum
hydrocarbon releases?
A. Lead
B. Mercury
C. TPH (Total Petroleum Hydrocarbons)
D. Asbestos
Rationale: TPH measures the concentration of petroleum-based
compounds in soil/water.
6. A contaminant plume in groundwater is best described as:
A. A surface spill
B. Subsurface spread of dissolved contaminants
C. Airborne dust
D. Noise diffusion
Rationale: Plumes represent the distribution of dissolved
contaminants below ground.
7. A contaminant with high solubility and low adsorption will likely:
A. Stay in soil
B. Move rapidly in groundwater
, C. Evaporate quickly
D. Bind to solids
Rationale: High solubility and low adsorption increase mobility
in groundwater.
8. The first step in designing a remediation plan is to:
A. Select technology
B. Define remediation goals
C. Build infrastructure
D. Hire contractors
Rationale: Goals guide selection and scope of remediation
actions.
9. A common in-situ treatment for petroleum contamination is:
A. Excavation
B. Bioremediation
C. Pump and treat only
D. Landfilling
Rationale: Bioremediation uses microbes to degrade
hydrocarbons in place.
10. An oxidizing agent used in chemical oxidation includes:
A. Nitrogen gas
B. Hydrogen peroxide
C. Sodium chloride
D. Calcium carbonate
Rationale: Hydrogen peroxide releases oxygen radicals to oxidize
contaminants.
11. MCL stands for:
A. Maximum Control Level
B. Maximum Contaminant Level
C. Minimum Cleanup Limit
Specialist Exam With Actual Questions
& Verified Answers, Plus Explained
Rationales/Expert Verified For
Guaranteed 100% Pass 2026/Latest
Update/Instant Download Pdf
1. What is the primary federal law governing hazardous waste
management?
A. Clean Water Act
B. RCRA
C. CERCLA
D. TSCA
Rationale: RCRA (Resource Conservation and Recovery Act)
governs hazardous waste from cradle to grave.
2. A Phase I Environmental Site Assessment primarily identifies:
A. Remediation costs
B. Subsurface contamination
C. Recognized Environmental Conditions (RECs)
D. Cleanup technologies
Rationale: A Phase I ESA focuses on historical and current uses
indicating RECs.
3. The main purpose of a vapor intrusion assessment is to:
A. Measure air quality outdoors
B. Detect contaminants migrating into indoor air
, C. Determine water toxicity
D. Assess noise pollution
Rationale: Vapor intrusion assessments evaluate soil gas or
groundwater vapors entering buildings.
4. Groundwater flow direction is typically determined by:
A. Wind patterns
B. Hydraulic gradient
C. Rainfall only
D. Soil color
Rationale: Groundwater flows from high to low hydraulic head,
forming the gradient.
5. Which contaminant is a common indicator of petroleum
hydrocarbon releases?
A. Lead
B. Mercury
C. TPH (Total Petroleum Hydrocarbons)
D. Asbestos
Rationale: TPH measures the concentration of petroleum-based
compounds in soil/water.
6. A contaminant plume in groundwater is best described as:
A. A surface spill
B. Subsurface spread of dissolved contaminants
C. Airborne dust
D. Noise diffusion
Rationale: Plumes represent the distribution of dissolved
contaminants below ground.
7. A contaminant with high solubility and low adsorption will likely:
A. Stay in soil
B. Move rapidly in groundwater
, C. Evaporate quickly
D. Bind to solids
Rationale: High solubility and low adsorption increase mobility
in groundwater.
8. The first step in designing a remediation plan is to:
A. Select technology
B. Define remediation goals
C. Build infrastructure
D. Hire contractors
Rationale: Goals guide selection and scope of remediation
actions.
9. A common in-situ treatment for petroleum contamination is:
A. Excavation
B. Bioremediation
C. Pump and treat only
D. Landfilling
Rationale: Bioremediation uses microbes to degrade
hydrocarbons in place.
10. An oxidizing agent used in chemical oxidation includes:
A. Nitrogen gas
B. Hydrogen peroxide
C. Sodium chloride
D. Calcium carbonate
Rationale: Hydrogen peroxide releases oxygen radicals to oxidize
contaminants.
11. MCL stands for:
A. Maximum Control Level
B. Maximum Contaminant Level
C. Minimum Cleanup Limit
