(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.