WTO Regulatory Compliance & Safety Standards 2

Question 1

Under the Safe Drinking Water Act (SDWA), which agency has primary enforcement authority over public water systems?

Accepted Answer

EPA

Answer

The U.S. Environmental Protection Agency (EPA) is the primary federal agency responsible for setting and enforcing drinking water standards under the SDWA.

Question 2

What is the Maximum Contaminant Level Goal (MCLG) for lead in drinking water?

Accepted Answer

Zero

Answer

The MCLG for lead is zero because no safe level of lead exposure has been established for humans, especially children.

Question 3

A water system must issue a Tier 1 public notice within how many hours of a violation that poses an acute public health risk?

Accepted Answer

24 hours

Answer

Tier 1 public notices for acute health risk violations must be issued within 24 hours to protect public health immediately.

Question 4

Which of the following is classified as a National Secondary Drinking Water Regulation (NSDWR)?

Accepted Answer

pH limits

Answer

pH is a secondary standard related to aesthetic qualities (taste, odor, corrosion) rather than health, making it an NSDWR.

Question 5

What does the Revised Total Coliform Rule (RTCR) require when a system finds a Total Coliform-positive sample?

Accepted Answer

Conduct a Level 1 or Level 2 assessment

Answer

The RTCR requires systems to conduct Level 1 or Level 2 assessments to identify sanitary defects when coliform is detected.

(WTO) Water Treatment Operator Certification Practice Test

(WTO) Water Treatment Operator Certification Practice Test

WTO Regulatory Compliance & Safety Standards 2