The sewerage usage fee is charged together with your water bill. If you find some figures shown in the “sewerage charge” field of your water bill, it means that wastewater sewers have been connected to your house. In addition, you can visit our website (in Chinese): http://www.sso.taipei.gov.tw by clicking on the “使用費收費地區查詢 (Charge by Address)”, filling in an address and clicking on “查詢是否收費 (Paid or not?)” to check your connection status. Or you can contact us by 02-25973183 extension 102, 103, 105, or 106.