Tuesday, May 14, 2019 from 8:30 AM to 12:00 PM PDT
Add to Calendar 


Richland Community Center 
500 Amon Park Drive
Richland, WA 99352

Driving Directions 


Sarah Lingley 
AWWA-PNWS Central WA Subsection 

Training Opportunity: Chlorine Residual Testing and Lab Skills (Richland, WA) 

WHAT:  Join us for a FREE 3.5-hour hands-on training workshop for chlorine residual testing developed by the Washington State Office of Drinking Water (ODW) and receive 0.3 CEU’s. 

This class will provide drinking water operators with a better understanding of good lab skills and chlorine measurement techniques and why they matter.

It will provide operators with hands on skills to answer the questions:

  • How do I know my instrument is working?
  • How do I know that the residual that I measure is real?
  • How good is my technique?

 Class size is limited to 20 students.  The goal is to increase water data accuracy and consistency.

This is a hands on class with five separate activities – attendees should bring chlorine test kits and all supplies needed to measure chlorine residual, including extra batteries for your instrument.

WHY:  ODW is sponsoring this class to provide increased training as recommended by the Disinfection Data Integrity Project (2015).  The yearlong study investigated disinfection measurement, recording, and reporting practices in 33 water treatment plants located in the northwest region of Washington State.  Deficiencies were identified in all 33 treatment facilities that affect the accuracy of the calculated pathogen inactivation achieved by the disinfection processes.  Pathogen inactivation level errors of over 100% were identified when more accurate data was used.

 This study highlighted challenges involved with ensuring accurate water quality measurements.


Instructors   Steve Deem and Krista Chavez, Washington State Department of Health

Where            Richland Community Center – in the Meeting Room

When             May 14th 8:30AM to 12:00PM

Questions      sarah.lingley@hdrinc.com

Register         By clicking the link below or by sending your name and Operator Number to: sarah.lingley@hdrinc.com

Other             Coffee, water, and snacks will be provided; however lunch is not provided.