The city of Fond du Lac is asking the state Public Service Commission for permission to increase water rates. City officials say the proposal increases water rates for the typical residential customer by 6.9%. That amounts to an increase of eight dollars per quarter or $2.69 per month. Since there will be no rate increase for sewer service, the typical residential customer will see an increase of approximately 3.5% of their total utility bill. The last time water rates were increased was in 2010.