4.2.1 Sewer System Information The City of Pawtucket maintains approximately 184 miles of sanitary, combined, and separate storm sewers (“the System”). Graphical approximations of the system are shown on the figures provided in Appendix G. Additional detail regarding the system is as follows: • The System is predominantly (90%±) combined (sanitary and storm drainage), with some separate storm sewers (MS4) located close to rivers such as the Blackstone, Ten Mile, and Moshassuck. The combined sewer system discharges at Narragansett Bay Commission’s Bucklin Point Treatment Facility in East Providence, RI. • The System is aged generally 80 years and older, with some elements of the combined sewers constructed in the 1860s. Large diameter (>24”) mains and interceptors are typically brick and mortar construction. Smaller pipes and other components are typically concrete or vitrified clay construction. • The City operates five (5) pump stations located at Branch St, Slater Park, Stafford St, Pinecrest Drive and Narragansett Park Drive. The remainder of the System is gravity driven