The original scheme and layout of the Town of Dedham sanitary sewer system was discussed and recommended in a report by the Massachusetts Drainage Commission in 1886. Although at that time there was no documented need for sewer in Dedham with the exception of the County Jail, the report recommended the Town connect to a main drain which was to run from Hyde Park to Boston Harbor. In 1895 the initial plan of the sewerage system was developed and in 1901 the Town submitted a plan and report, prepared by E. Worthington, C.E., which showed the location of the proposed sewer and the proposed connections with the Metropolitan Sewer System which was completed in the 1897.
The plan provided for the sewerage of all portions of the town which appeared to be in need of sewerage at that time, and it expressly provided that there should be no overflows either at the connections with the Metropolitan Sewer or elsewhere in the system. Since the plan appeared adequate for preventing the pollution of any stream or water course, the application to State Board of Health was approved March 7, 1901.