(Cambridge City, IN)--Customers in the Western Wayne Sewer District in and around Cambridge City are facing the possibility of a massive increase in monthly bills. The sewer district is looking at a $13 million expansion, partially due to growth at the Gateway Industrial Park. The average customer’s monthly bill would go from $27.64 a month to $68. Another option is called a capacity fee. That would force new customers to pay over $3300 to establish sewer service.