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Chemigation - Backflow Prevention

COURSE NO: M01-005
Chemigation - Backflow Prevention
Course Highlights

This online engineering PDH course describes pesticide label requirements for Chemigation, Chemigation system operation and calibration and Chemigation system safety.


Chemigation, or the addition of chemicals to irrigation water, has probably been around for as long as both irrigation and chemicals have been used in agriculture. Chemigation became more widely used in the 1970's with the adoption of center pivot irrigation systems in the Midwest. Backflow prevention is necessary to prevent pesticide contamination of surface water supplies as well as ground water.


This 1 PDH online course is applicable to mechanical engineers, civil engineers, chemical engineers and environmental engineers who are interested in learning more about chemigation in irrigation water.

Learning Objectives

This PE continuing education course is intended to provide you with the following specific knowledge and skills:

  • Pesticide labeling requirements for chemigation
  • Alternative devices that also comply with labeling
  • Maintenance, calibration and safety of chemigation
Course Document

In this professional engineering CEU  course, you will need to review the material contained in Grower Training Manual for Backflow Prevention in Chemigation of Pesticides, Revised 3/3/04.

To view, print and study the course document, please click on the following link(s):
Chemigation - Backflow Prevention (635 KB)
Course Quiz
Once you complete your review, you will need to take a multiple-choice quiz consisting of ten (10) questions to earn 1 PDH credit.  The quiz will be based on this manual.


The minimum passing score is 70%. There is no time limit on the quiz, and you can take it multiple times until you pass at no additional cost.
Certificate of Completion

Upon successful completion of the quiz, print your Certificate of Completion instantly. (Note: if you are paying by check or money order, you will be able to print it after we receive your payment.) For your convenience, we will also email it to you. Please note that you can log in to your account at any time to access and print your Certificate of Completion.

To buy the course and take the quiz, please click on: