City of Silver Lake residents are now under a boil water advisory.
City officials say you should not drink city water before you boil it or use a safe alternative source.
City Clerk Jon Jerabek says the city had a power outage that caused the well pumps to shut down until they started the generator. When the pumps shut down, there was a loss of water pressure, which could have caused contaminates to enter the water supply.
Jerabek says the water is being tested and they should have results sometime tomorrow (Thursday).
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