Sanitary sewer cannot be shut off, however, the billing may be discontinued if you have the water turned off by the water company for a period of 90 days. After the 90 day period, you may file an Affidavit of Abatement with the Sewer Department to cease sewer billing until the water is turned back on. Failure to report that the water has been turned back on will forfeit the abatement credit.