KEMP (CBSDFW.COM) – A boil water notice has been issued in the City of Kemp. City leaders say a broken valve at the water treatment plant is to blame.

“Our water treatment plant is roughly about 40 years old and it needs some improvements done to it, just as everything else does,” Mayor Donald Kile said. “We’ve been working real well, we just had a valve that just decided to malfunction on us.”

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The broken valve has caused chlorine levels to drop. Residents need to boil any water for drinking, cooking or making ice, to destroy possible harmful bacteria and microbes. After reaching a rolling boil water should be boiled for two minutes.

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Just last month water service was shut off completely for several days in the Kaufman County city. In that case, excessive heat caused several Kemp water lines to burst and repairs had to be made before water towers could be refilled.

Mayor Kile said the water lines are simply outdated and a complete overhaul or upgrade is the ultimate goal. “We are hunting for finances right now, to take care of those things,” he said.

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City leaders are hoping to lift the boil order by Friday, but say with the upcoming holiday weekend repairs could take longer.