How to Avoid Health Hazard in Plumbing Cross Connections

Credit: 6 PDH Hours
Course Fee: $90.00
Pages: 52

How it Work!

  1. Register first and log into your account. Study and take the quiz for FREE until passed.
  2. After passing the quiz, follow the page, pay for the course and print your certificate.

Course Summary

Public health officials have long been concerned about cross-connections and backflow connections in plumbing systems and in public drinking water supply distribution systems. Such cross connections, which make possible the contamination of potable water, are ever-present dangers. One example of what can happen is an epidemic that occurred in Chicago in 1933.

Old, defective, and improperly designed plumbing and fixtures permitted the contamination of drinking water. As a result 1,409 persons contracted amebic dysentery; there were 98 deaths. This epidemic, and others resulting from contamination introduced into a water supply through improper plumbing, made clear the responsibility of public health officials and water purveyors for exercising control over public water distribution systems and all plumbing systems connected to them.

Learning Objectives

This course includes advising and instructing plumbing installers in the recognition and elimination of cross-connections.

Course Author


Review the quiz before studying the course.

Certificate of completion of the course

This course comes with a multiple-choice quiz. You can view the quiz and take the quiz if you are logged in your account. You can take the quiz for this online PDH course as many times until passed. The passing grade is 70% and above. After you pass the quiz simply follow the page, to pay for the course and print your certificate instantly. A copy of the certificate and receipt for this course will always be in your account.

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This online PDH course can also be used as a continuing education course for the following.


Mechanical Engineering

Environmental Engineering


Landscape Architects

Home & Building Inspectors