1.1 Under this Contract, the Supplier/Manufacturer shall supply and deliver Non-Rising Stem Resilient-Seated Gate Valves, also known as Resilient Wedge valves (RW), to the location(s) identified in Section 3.0 below. Suppliers must provide valves that meet the requirements described under this Contract from manufacturers approved by DEP. 1.2 This specification describes the requirements for the design; materials; coating; shop testing and delivery of Non-Rising Stem Resilient-Seated Gate Valves from 3-inch thru 20-inch and 3-inch thru 12-inch Tapping Valves for the City of New York’s potable water system. 1.3 Valves shall meet the requirements of ANSI/NSF 61 – Health Effects and the United States Environmental Protection Agency (USEPA) Safe Drinking Water Act (SDWA) 2011.