CWS Regulations, Safety & Professional Ethics 2 — Questions and Answers
Question 1: Under the Safe Drinking Water Act (SDWA), which federal agency is primarily responsible for setting national drinking water standards?
- OSHA
- EPA (Correct answer)
- FDA
- CDC
Correct answer: EPA
The U.S. Environmental Protection Agency (EPA) establishes National Primary and Secondary Drinking Water Regulations under the SDWA.
Question 2: A CWS-certified specialist discovers a competitor is illegally dumping brine concentrate into a storm drain. What is the most ethically appropriate first action?
- Confront the competitor directly
- Report the violation to the appropriate regulatory authority (Correct answer)
- Ignore it as it is not their business
- Post about it on social media
Correct answer: Report the violation to the appropriate regulatory authority
Professional ethics require reporting environmental violations to the appropriate regulatory authority to protect public health and the environment.
Question 3: Which OSHA standard is most relevant to water treatment specialists who handle hazardous chemicals such as chlorine or sodium hypochlorite?
- Hazard Communication Standard (HCS / GHS) (Correct answer)
- Bloodborne Pathogens Standard
- Respiratory Protection Standard
- Lockout/Tagout Standard
Correct answer: Hazard Communication Standard (HCS / GHS)
OSHA's Hazard Communication Standard (29 CFR 1910.1200) requires chemical hazard information be communicated via Safety Data Sheets and labeling.
Question 4: What does the term 'Maximum Contaminant Level Goal' (MCLG) represent in EPA drinking water regulations?
- The enforceable limit for a contaminant
- The non-enforceable health-based target at which no known risk exists (Correct answer)
- The minimum treatment level required
- The secondary aesthetic standard for taste and odor
Correct answer: The non-enforceable health-based target at which no known risk exists
MCLGs are non-enforceable public health goals set at levels where no known or anticipated adverse health effects occur.
Question 5: A technician is servicing a water softener that uses a salt storage tank. What safety precaution is most critical when working in a confined brine tank area?
- Wearing steel-toed boots
- Testing for oxygen deficiency before entry (Correct answer)
- Using anti-static gloves
- Wearing UV-protective eyewear
Correct answer: Testing for oxygen deficiency before entry
Confined spaces can accumulate gases that displace oxygen, so atmospheric testing for oxygen deficiency is a critical safety step before entry.
Question 6: Which certification body specifically administers the CWS (Certified Water Specialist) credential for water treatment professionals?
- NSF International
- Water Quality Association (WQA) (Correct answer)
- American Water Works Association (AWWA)
- National Ground Water Association (NGWA)
Correct answer: Water Quality Association (WQA)
The Water Quality Association (WQA) administers the CWS credential as part of its professional certification program for water treatment specialists.
Question 7: When a water treatment professional makes a product recommendation, which ethical obligation must they fulfill regarding conflicts of interest?
- They must always recommend the lowest-cost option
- They must disclose any financial relationship with the manufacturer (Correct answer)
- They are only obligated to disclose if asked by the customer
- Conflicts of interest are not addressed in professional codes of ethics
Correct answer: They must disclose any financial relationship with the manufacturer
Professional ethics require disclosure of any financial relationships or incentives that could influence product recommendations to maintain customer trust.
CWS Regulations, Safety & Professional Ethics 2
Under the Safe Drinking Water Act (SDWA), which federal agency is primarily responsible for setting national drinking water standards?