September 9, 2016

Dear Valued Water Customer,

We have some very exciting news for you! As many of you know we have been adding chlorine to our water system since the boil water incident back in September 2013. Adding the chlorine to the water has played havoc on our water system that has up until September 2013 been untreated since its inception back in 1935. A number of you have called the District complaining about the chlorine taste and smell or the tea/brown color of water that you have been experiencing. This is due to the chlorine scouring off all of the 80+ years of mineral build up on the inside of our mains and the internal plumbing of your homes.

We are happy to tell you that after 3 years of making improvements and implementing numerous new practices and testing procedures the Department of Health has given us their approval to discontinue the chlorination. Doing this should eliminate the chlorine smell and taste of the water and we believe this will lessen the amount of brown water you will experience.

This is the Districts plan as far as moving ahead with this process:

• September 1st we will begin with all of the transitional weekly testing that
we will be doing for the next 18 months before we go back to our baseline
testing procedures.
• October 1st we will begin the ‘step down’ process of turning back the
chlorine, this will take place for three months or through December 31,
2016.
• Starting in January 2017 the chlorinator will be completely shut off and
only used for emergency purposes.

In the meantime, we would like to hear from you on your thoughts on this matter. We are asking that you please attend our open public meeting on September 20th at 4:00pm at our District office at 922 So. 219th St. or, if you are not able to attend that meeting please write to us at the address above or email us at eric.clarke@kcwd54.org with your questions and we will respond back to you.

We at Water District #54 are very excited to be able to return to the pure untreated water that we have delivered to you for the past 80+ years.

Sincerely,
The Commissioners and Staff at King County Water District #54

This information is also available online. Check out our new website at kcwd54.org