UPDATE: Tennessee American Water released an update on the company's efforts to learn what caused a water main break on September 12, that left about 35,000 customers without water.

TAW spokesperson Daphne Kirksey says, "We continue to evaluate the main break and are planning to engage an independent third party engineering firm to assist in our efforts."

A release from TAW on September 19 said the company's crews were installing a transmission main when they noticed a large amount of water surfacing in the work area. That's when crews discovered the 36-inch main break.

On September 17, a class action lawsuit was filed against American Water Works Company and its subsidiary, Tennessee American Water.

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PREVIOUS STORY: Tennessee American Water (TAW) has released more information about the main break that left thousands of people in the Chattanooga area without water for days.

"No utility is able to guarantee uninterrupted service. When events such as these occur, we do not provide for billing adjustments or claims for customer reimbursement of expenses," reads the statement from Tennessee American Water release sent to customers.

The 36-inch break happened on September 12 and left 35,000 customers without water, for hours or days in some cases.

A release from TAW says the company's crews were installing a transmission main when they noticed a large amount of water surfacing in the work area.

The company says the cause of the main break is still unknown but says finding it is a top priority.

“It is important to Tennessee American Water to be transparent with our customers about the circumstances surrounding the main break last week,” said Tennessee American Water President Darlene Williams. “We are committed to sharing information with the community after we complete our evaluation. We thank you for your patience and understanding throughout this process.”

Lee Davis, an attorney connected to the class-action lawsuit, released the following statement: 

“After a week of mostly silence, Tennessee American refuses to provided the public with the facts and circumstances on what caused the largest water shutdown in city history. Instead, claiming ‘transparency,’ Tennessee American concludes "valve work was being performed”. This is unacceptable, and our city and county residents deserve better.  Today the water company tells area residents and companies that no bill adjustments will be made, nor will incurred expenses be reimbursed. This response exposes exactly why we filed the class action lawsuit. We demand accountability as to what happened, why it happened, and how we can be sure it won’t happen again.” 

Below is the entire statement released by TAW:

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