About clean harbors
Company Description
Clean Harbors is a leading provider of environmental, energy, and industrial services across North America. Founded in 1980, the company specializes in waste management, environmental cleanup, and emergency response services. With a commitment to sustainability and safety, Clean Harbors operates with a workforce dedicated to protecting the environment while providing top-tier service to its clients in various industries. The work culture at Clean Harbors is built on collaboration, innovation, and a shared commitment to safety and environmental stewardship. Employees are encouraged to take initiative, engage in continuous learning, and work together in a dynamic job environment that values diversity and inclusion.
Environmental Technician Interview Questions
Q1: What are the primary responsibilities of an Environmental Technician at Clean Harbors?
The primary responsibilities include conducting site assessments, collecting environmental samples, monitoring hazardous waste, and ensuring compliance with environmental regulations.
Q2: How do you ensure safety while performing environmental assessments?
I prioritize safety by conducting thorough risk assessments before starting work, wearing appropriate Personal Protective Equipment (PPE), and following established safety protocols at all times.
Q3: Can you describe a situation where you had to deal with a hazardous material spill?
In a previous role, I responded to a chemical spill by quickly containing the area, using absorbent materials, and notifying the emergency response team to manage the situation safely and efficiently.
Q4: What experience do you have with environmental regulations?
I have worked with various environmental regulations, including RCRA and CERCLA, and I regularly stay updated on changes in legislation to ensure compliance in my work.
Q5: How do you handle working in a team environment?
I believe teamwork is crucial for effective environmental management. I communicate openly with my colleagues, share information, and collaborate on projects to achieve our common goals.
Hazardous Waste Specialist Interview Questions
Q1: What does the role of a Hazardous Waste Specialist entail at Clean Harbors?
The role involves managing the collection, treatment, and disposal of hazardous waste in compliance with federal and state regulations, as well as conducting audits and training staff on waste management practices.
Q2: How do you stay informed about changes in hazardous waste regulations?
I subscribe to professional publications, attend industry conferences, and participate in training programs to stay informed about regulatory changes and best practices in hazardous waste management.
Q3: Describe a time you identified a compliance issue in hazardous waste management.
I once noticed discrepancies in waste labeling during an audit. I immediately reported this to management, and we implemented corrective actions, including additional training for staff on proper labeling procedures.
Q4: What steps do you take to conduct a hazardous waste audit?
I conduct a thorough review of waste disposal records, inspect storage areas for compliance, interview staff, and assess the overall management of hazardous materials on-site.
Q5: How do you handle emergency situations involving hazardous waste?
In emergencies, I follow the established emergency response plan, coordinate with first responders, and ensure that all personnel are evacuated from the affected area while managing the containment process.
Industrial Services Technician Interview Questions
Q1: What are the key responsibilities of an Industrial Services Technician at Clean Harbors?
Key responsibilities include performing industrial cleaning, vacuum truck operations, and maintaining equipment while ensuring compliance with safety and environmental standards.
Q2: How do you approach industrial cleaning projects?
I assess the site conditions, plan the cleaning process, use the appropriate methods and equipment, and work efficiently while adhering to safety protocols to ensure effective and safe operations.
Q3: Describe your experience with operating heavy machinery.
I have extensive experience operating various types of heavy machinery, including vacuum trucks and pressure washers, and I ensure that I follow all safety guidelines and regulations during operations.
Q4: What safety measures do you prioritize while working on-site?
Safety measures include wearing required PPE, conducting pre-operation inspections of equipment, and adhering to site-specific safety protocols to minimize risks.
Q5: How do you handle working in challenging environments?
I remain adaptable and focused, prioritize safety, and rely on teamwork to navigate challenging environments effectively while completing tasks efficiently.
Emergency Response Technician Interview Questions
Q1: What is the role of an Emergency Response Technician at Clean Harbors?
The role involves responding to hazardous materials incidents, conducting assessments, and implementing cleanup and containment measures while ensuring safety and compliance.
Q2: How do you prepare for potential emergency response situations?
I participate in regular training drills, stay updated on emergency response protocols, and maintain readiness by ensuring equipment is in working order and accessible.
Q3: Can you provide an example of a successful emergency response you were involved in?
I once responded to a chemical leak at a manufacturing plant, where I quickly assessed the situation, coordinated with local authorities, and implemented containment measures to minimize environmental impact.
Q4: What communication skills are important in emergency response situations?
Effective communication is crucial, including clear instructions to team members, accurate reporting to authorities, and providing updates to stakeholders throughout the response process.
Q5: How do you manage stress during emergency situations?
I stay calm, rely on my training, focus on the tasks at hand, and communicate clearly with my team to ensure a coordinated and effective response.
clean harbors Interview Questions and Answers
Updated 21 Feb 2026Chemical Engineer Interview Experience
Candidate: Emily R.
Experience Level: Mid Level
Applied Via: Online Application
Difficulty: Hard
Final Result: Rejected
Interview Process
3
Questions Asked
- Explain your experience with chemical waste treatment processes.
- How do you ensure compliance with environmental regulations in engineering projects?
- Describe a time you improved a process for safety or efficiency.
Advice
Prepare detailed technical examples and be ready for in-depth discussions on regulations and process improvements.
Full Experience
The process included a phone screen, a technical interview, and a final panel interview. The technical questions were challenging, focusing on both theory and practical applications. Although I was not selected, I gained valuable insight into the company's expectations.
Field Service Technician Interview Experience
Candidate: Michael T.
Experience Level: Entry Level
Applied Via: Job Fair
Difficulty: Easy
Final Result:
Interview Process
1
Questions Asked
- Are you comfortable working outdoors in various weather conditions?
- Do you have experience with equipment maintenance?
- How do you prioritize safety on the job?
Advice
Show enthusiasm for hands-on work and emphasize your commitment to safety.
Full Experience
I met the recruiter at a job fair and was invited for an on-the-spot interview. The questions were straightforward and focused on my willingness to work in the field and follow safety guidelines.
Project Manager Interview Experience
Candidate: Samantha K.
Experience Level: Senior Level
Applied Via: Recruiter Contact
Difficulty:
Final Result:
Interview Process
2
Questions Asked
- How do you manage project timelines in hazardous environments?
- Describe your experience coordinating cross-functional teams.
- What tools do you use for project tracking?
Advice
Highlight your leadership skills and experience managing complex projects under strict regulations.
Full Experience
The recruiter first screened me over the phone, then I had a panel interview with senior management. They valued my experience in environmental projects and my problem-solving approach.
Health and Safety Specialist Interview Experience
Candidate: David L.
Experience Level: Mid Level
Applied Via: Referral
Difficulty: Hard
Final Result: Rejected
Interview Process
3
Questions Asked
- How do you conduct a risk assessment?
- Describe a challenging safety incident you managed.
- What strategies do you use to promote safety compliance among employees?
Advice
Have specific examples ready and be prepared for scenario-based questions.
Full Experience
The interview process was thorough with technical and behavioral questions. The final round involved a case study presentation. Although I didn't get the job, the experience helped me understand the company's high standards.
Environmental Technician Interview Experience
Candidate: Jessica M.
Experience Level: Entry Level
Applied Via: Online Application
Difficulty:
Final Result:
Interview Process
2
Questions Asked
- Describe your experience with hazardous waste handling.
- How do you ensure compliance with environmental regulations?
- Tell me about a time you worked in a team to solve a problem.
Advice
Be prepared to discuss safety protocols and demonstrate your attention to detail.
Full Experience
The first round was a phone interview focusing on my background and safety knowledge. The second was an in-person interview with practical questions about environmental procedures. The team was friendly and emphasized the importance of safety culture.
Frequently Asked Questions in clean harbors
Have a question about the hiring process, company policies, or work environment? Ask the community or browse existing questions here.
Common Interview Questions in clean harbors
Q: A man has a wolf, a goat, and a cabbage. He must cross a river with the two animals and the cabbage. There is a small rowing-boat, in which he can take only one thing with him at a time. If, however, the wolf and the goat are left alone, the wolf will eat the goat. If the goat and the cabbage are left alone, the goat will eat the cabbage. How can the man get across the river with the two animals and the cabbage?
Q: A rich merchant had collected many gold coins. He did not want anybody to know about them. One day his wife asked, "How many gold coins do we have?" After pausing a moment, he replied, "Well! If I divide the coins into two unequal numbers, then 32 times the difference between the two numbers equals the difference between the squares of the two numbers."The wife looked puzzled. Can you help the merchant's wife by finding out how many gold coins they have?
Q: Consider a pile of Diamonds on a table. A thief enters and steals 1/2 of the total quantity and then again 2 extra from the remaining. After some time a second thief enters and steals 1/2 of the remaining+2. Then 3rd thief enters and steals 1/2 of the remaining+2. Then 4th thief enters and steals 1/2 of the remaining+2. When the 5th one enters he finds 1 diamond on the table. Find out the total no. of diamonds originally on the table before the 1st thief entered.
Q: There are 3 clans in an island - The Arcs who never lie, the Dons who always lie and the Slons who lie alternately with the truth. Once a tourist meets 2 guides who stress that the other is a Slon. They proceed on a tour and see a sports meet. The first guide says that the prizes have been won in the order Don, Arc, Slon. The other says that, the order is Slon, Don, Arc. (the order need not be exact). To which clan did each of the guides and the players belong? ...
Q: A light bulb is hanging in a room. Outside of the room there are three switches, of which only one is connected to the lamp. In the starting situation, all switches are 'off' and the bulb is not lit. If it is allowed to check in the room only once.How would you know which is the switch?
Q: There are 3 sticks placed at right angles to each other and a sphere is placed between the sticks . Now another sphere is placed in the gap between the sticks and Larger sphere . Find the radius of smaller sphere in terms of radius of larger sphere.
Q: At 6?o a clock ticks 6 times.The time between first and last ticks is 30 seconds.How long does it tick at 12?o clock?2.A hotel has 10 storey. Which floor is above the floor below the floor, below the floor above the floor, below the floor above the fifth.
Q: There is a room with a door (closed) and three light bulbs. Outside the room there are three switches, connected to the bulbs. You may manipulate the switches as you wish, but once you open the door you can't change them. Identify each switch with its bulb.
Q: Tom has three boxes with fruits in his barn: one box with apples, one box with pears, and one box with both apples and pears. The boxes have labels that describe the contents, but none of these labels is on the right box. How can Tom, by taking only one p
Q: A vessel is full of liquid. From the vessel, 1/3rd of the liquid evaporates on the first day. On the second day 3/4th of the remaining liquid evaporates. What fraction of the volume is present at the end of the second day
Q: There are 7 letters A,B,C,D,E,F,GAll are assigned some numbers from 1,2 to 7.B is in the middle if arranged as per the numbers.A is greater than G same as F is less than C.G comes earlier than E.Which is the fourth letter
Q: In a Park, N persons stand on the circumference of a circle at distinct points. Each possible pair of persons, not standing next to each other, sings a two-minute song ? one pair immediately after the other. If the total time taken for singing is 28 minutes, what is N?
Q: If I walk with 30 miles/hr i reach 1 hour before and if i walk with 20 miles/hr i reach 1 hour late. Find the distance between 2 points and the exact time of reaching destination is 11 am then find the speed with which it walks.
Q: There are four dogs/ants/people at four corners of a square of unit distance. At the same instant all of them start running with unit speed towards the person on their clockwise direction and will always run towards that target. How long does it take for them to meet and where?
Q: Given a collection of points P in the plane , a 1-set is a point in P that can be separated from the rest by a line, .i.e the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P)....
Q: Consider a series in which 8 teams are participating. each team plays twice with all other teams. 4 of them will go to the semi final. How many matches should a team win, so that it will ensure that it will go to semi finals.?
Q: Jack and his wife went to a party where four other married couples were present. Every person shook hands with everyone he or she was not acquainted with. When the handshaking was over, Jack asked everyone, including his own wife, how many hands they shook?
Q: A family X went for a vacation. Unfortunately it rained for 13 days when they were there. But whenever it rained in the mornings, they had clear afternoons and vice versa. In all they enjoyed 11 mornings and 12 afternoons. How many days did they stay there totally?
Q: A man driving the car at twice the speed of auto one day he was driven car for 10 min. and car is failed. he left the car and took auto to go to the office .he spent 30 min. in the auto. what will be the time take by car to go office?
Q: A person meets a train at a railway station coming daily at a particular time. One day he is late by 25 minutes, and he meets the train 5 k.m. before the station. If his speed is 12 kmph, what is the speed of the train.
