Nitrate advisory in Columbus canceled

UPDATE: The nitrate advisory issued for parts of downtown and west Columbus has been canceled. Customers of the City of Columbus Dublin Road Water Plant were notified last week about high levels of nitrate in the drinking water.The City of Columbus says the results of the most recent water samples show nitrate levels below the nitrate standard or maximum contaminant level of 10 parts per million. ORIGINAL REPORT:Elevated levels of nitrates have been found in several areas around Franklin County.