Jeff Lundt 


Monday, September 26, 2022 from 8:10 AM to 4:30 PM PDT
(2 sessions one AM, one PM, sign up for either)

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Cotton Building - Port Townsend Waterfront 
607 Water St.
Port Townsend, WA 98368

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Chlorine Residual Testing and Lab Skills Workshop

Mondayday September 26th, 2022

The Cotton Building - Port Townsend WA


Morning Workshop starts at 8:10 AM PDT

Afternoon Workshop starts at 1:00 PM PDT

(doors open at 7:50 for morning registration and coffee and 12:30 for afternoon registration and sodas.

Both Water & Wastewater CEUs available!!

Another session will be held in Port Angeles on Tuesday morning, 27 September.  A separate announcement will be sent shortly for that workshop.

Attend these 3.5 hour workshops for chlorine residual testing.  Each 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 attendees.  The goal of the workshop is to increase water data accuracy and consistency. 

This is a hands on class with five separate activites - attendees must bring a  chlorine test kit, and all supplies needed to measure chlorine residual, including extra batteries for your instrument.  Bring your standards if you have them for comparison.  Also remember a calculator (a smart phone calculator is fine).

This training is being taught by Office of Drinking Water staff 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 facillities 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.


Cost is $60 per attendee for individual or utility members of AWWA, WEF or PNCWA 

$90 per attendee for non-members 

Fee includes coffee/sodas and refreshments

Small System Operators - To encourage participation from small utilities (less than 1000 connections) the Northwest Washington Subsection will pay workshop registration fees for 1 AWWA member operator from small utilities for each session.  To be eligible for a small systems scholarship please register and pay for the workshop and on the registration form indicate the utility name and number of connections.  If your registration is the first one received, your registration fee will be refunded following completion of the workshop.  Reciept of payment sets your place in line for scholarships.  First Come - First Served.  

Cancellation Policy - If a registrant is unable to attend the event and a substitute within the organization can attend, please contact Jeff Lundt at to update information.  If unable to attend or send a substitute contact the above at least one week before the event for a refund (minus a $10 processing fee).  Refunds after that time will not be given.

If the workshop is cancelled due to lack of registration or another reason, full refunds will be provided.

Please note the registration system needs a unique email for each registration.  If you do not have a work or home email to use call Jeff Lundt (206/477-5582) for a work-around.