Page |1
CHMM - Bowen EHS Questions Questions
and Correct Answers/ Latest Update /
Already Graded
A large quantity generator of hazardous waste has a tank used to store
hazardous waste pending transportation off-site and subsequent
disposal. When employees arrive on-site on Monday morning, they
notice that the tank contains less liquid than it should, and it has been
determined that the tank is leaking hazardous waste into the ground
underneath. How quickly must the facility owner or operator verbally
notify their regional administrator or EPA of this release?
A. Within 8 hours of detection
B. Within the same business day of detection
C. Within 24 hours of detection
D. Within 30 days of detection
Ans: C. Within 24 hours of detection
40 CFR §265.196 states that verbal notification to their regional
administrator or EPA must occur within 24 hours of detection; if
the release involves a release of a hazardous substance
exceeding the RQ, notification to the National Response Center
will meet this reporting requirement.
You have been hired as an environmental consultant to perform a
Phase 2 ESA for a piece of property. You realize that there are several
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different strategies that can be used to collect samples of potentially
contaminated media. Which three of the following are considered
probability sampling strategies?
A. Simple random sampling
B. Authoritative sampling
C. Systematic sampling
D. Stratified random sampling
Ans: A, C, and D
Simple random sampling, stratified random sampling, and
systematic sampling are all classified as probability sampling
strategies. Authoritative sampling, on the other hand, relies on
the professional judgement and knowledge of the person
collecting the sample to choose where to collect the samples.
Transportation of hazardous waste requires documentation on the
Uniform Hazardous Waste Manifest. Which two of the following
shipments would not be required to be shipped to a TSDF using a
Uniform Hazardous Waste Manifest under RCRA?
A. Five 55 gallon drums with a hazardous waste code of D001
B. Used oil being recycled
C. Universal wastes
D. A tank of rinsate contaminated with a p-listed waste
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Ans: Used oil and universal waste
Used oil for recycling (even if it is characteristically hazardous)
as well as universal wastes do not require manifesting with a
Uniform Hazardous Waste Management. Other types of
shipping papers may be required.
A company is an LQG of hazardous waste. The company is using drip
pads for the accumulation of hazardous waste in their 90-day
accumulation area. In which industry is this company operating?
A. Smelting
B. Wood preserving
C. Chemical manufacturing
D. Used oil recycling
Ans: B. Wood preserving
Which of the following is not one of the allowed exemptions to the Pre-
Manufacture Notification registration and listing process required by
the Toxic Substances Control Act of 1976?
A. Low Volume Exemption
B. Polymer Research Exemption
C. Import Only Exemption
D. Export Only Exemption
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Ans: C. Import Only Exemption
You are a new hazardous materials manager at a facility that is a LQG.
In reviewing your records, you have found biennial reports that have
been filed that cover the preceding 10-year period. Can you dispose of
these reports?
A. No, biennial reports must be retained indefinitely.
B. Yes, you can dispose of any biennial report that is more than three
years from its due date.
C. Yes, there is no defined recordkeeping requirement for biennial
reports.
D. No, because you must retain biennial reports for at least 30 years
beyond their due date.
Ans: B. Yes, you can dispose of any biennial report that is more
than three years from its due date.
Your facility is generating a new hazardous waste stream. Before
scheduling a hazardous waste transporter to move the materials to
your designated TSDF, you know that you need to complete a
hazardous waste profile. What is the primary purpose of a hazardous
waste profile?
A. To make the regulator happy
All rights reserved © 2025/ 2026 |
CHMM - Bowen EHS Questions Questions
and Correct Answers/ Latest Update /
Already Graded
A large quantity generator of hazardous waste has a tank used to store
hazardous waste pending transportation off-site and subsequent
disposal. When employees arrive on-site on Monday morning, they
notice that the tank contains less liquid than it should, and it has been
determined that the tank is leaking hazardous waste into the ground
underneath. How quickly must the facility owner or operator verbally
notify their regional administrator or EPA of this release?
A. Within 8 hours of detection
B. Within the same business day of detection
C. Within 24 hours of detection
D. Within 30 days of detection
Ans: C. Within 24 hours of detection
40 CFR §265.196 states that verbal notification to their regional
administrator or EPA must occur within 24 hours of detection; if
the release involves a release of a hazardous substance
exceeding the RQ, notification to the National Response Center
will meet this reporting requirement.
You have been hired as an environmental consultant to perform a
Phase 2 ESA for a piece of property. You realize that there are several
All rights reserved © 2025/ 2026 |
, Page |2
different strategies that can be used to collect samples of potentially
contaminated media. Which three of the following are considered
probability sampling strategies?
A. Simple random sampling
B. Authoritative sampling
C. Systematic sampling
D. Stratified random sampling
Ans: A, C, and D
Simple random sampling, stratified random sampling, and
systematic sampling are all classified as probability sampling
strategies. Authoritative sampling, on the other hand, relies on
the professional judgement and knowledge of the person
collecting the sample to choose where to collect the samples.
Transportation of hazardous waste requires documentation on the
Uniform Hazardous Waste Manifest. Which two of the following
shipments would not be required to be shipped to a TSDF using a
Uniform Hazardous Waste Manifest under RCRA?
A. Five 55 gallon drums with a hazardous waste code of D001
B. Used oil being recycled
C. Universal wastes
D. A tank of rinsate contaminated with a p-listed waste
All rights reserved © 2025/ 2026 |
, Page |3
Ans: Used oil and universal waste
Used oil for recycling (even if it is characteristically hazardous)
as well as universal wastes do not require manifesting with a
Uniform Hazardous Waste Management. Other types of
shipping papers may be required.
A company is an LQG of hazardous waste. The company is using drip
pads for the accumulation of hazardous waste in their 90-day
accumulation area. In which industry is this company operating?
A. Smelting
B. Wood preserving
C. Chemical manufacturing
D. Used oil recycling
Ans: B. Wood preserving
Which of the following is not one of the allowed exemptions to the Pre-
Manufacture Notification registration and listing process required by
the Toxic Substances Control Act of 1976?
A. Low Volume Exemption
B. Polymer Research Exemption
C. Import Only Exemption
D. Export Only Exemption
All rights reserved © 2025/ 2026 |
, Page |4
Ans: C. Import Only Exemption
You are a new hazardous materials manager at a facility that is a LQG.
In reviewing your records, you have found biennial reports that have
been filed that cover the preceding 10-year period. Can you dispose of
these reports?
A. No, biennial reports must be retained indefinitely.
B. Yes, you can dispose of any biennial report that is more than three
years from its due date.
C. Yes, there is no defined recordkeeping requirement for biennial
reports.
D. No, because you must retain biennial reports for at least 30 years
beyond their due date.
Ans: B. Yes, you can dispose of any biennial report that is more
than three years from its due date.
Your facility is generating a new hazardous waste stream. Before
scheduling a hazardous waste transporter to move the materials to
your designated TSDF, you know that you need to complete a
hazardous waste profile. What is the primary purpose of a hazardous
waste profile?
A. To make the regulator happy
All rights reserved © 2025/ 2026 |
