The Platteville Water and Sewer Utility will increase water rates in the city by 3%, according to the Public Service Commission of Wisconsin. The rate increase is needed to reduce existing deficiencies in present rates. The proposal does not require a public hearing. The rates in Platteville will increase on October 15th. The monthly rate will increase to $26.66 for the average residential customer, while it will increase to $187.76 for an average commercial property owner.