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WEBSTER COUNTY, Iowa  —  Residents of Lehigh, Iowa, are currently being advised to boil their water.

Officials say the pumps at the city’s water treatment plant failed to refill the water tower. This caused a drop in water pressure and increased the potential for bacteria to get into the system.

The town’s residents have been placed on a boil advisory.

Two sets of water samples taken 24 hours apart must be tested before the water can be deemed safe and the advisory is lifted.