Cases with Industry Code "ST" SEWAGE TREATMENT, Purpose Code "AAC%20" Application to amend a certificate, and Status "CL" CLOSED (2%20cases) Case NumberCase TitleOpen DateClosed Date 80-0487-ST-AAC PUBLIC SERVICE CORPORATION04/30/198004/29/1981 83-0972-ST-AAC PUBLIC SERVICE CORPORATION07/20/198305/01/1984