Statement of Work The Contractor will provide complete replacement of the leaking underground steam and condensate (LPS) line assembly connecting Building 25 to Building 1 at OPWDD’s Institute for Basic Research at 1050 Forest Hill Rd, Staten Island, NY 10314. The Contractor will provide all labor and materials necessary to complete the work in a professional manner according to the Scope of Work. Work is to be completed within 120 days of contract approval. This is a NYS Public Works project, and prevailing wages are to be paid, and Certified Payrolls must be submitted at time of completion. Site must be cleaned, and all materials secured at the end of each workday. Absolutely no scraps, especially fasteners, are to be left unsecured. Upon completion of replacement of the leaking underground steam and condensate (LPS) line assembly, and before the removal of equipment, the Contractor is to schedule a quality control and quality assurance inspection with Plant Superintendent or designee. Please refer to Exhibit A: Current Piping Layout for a layout of the current underground steam and condensate (LPS) line assembly. Detailed Specifications 1. The existing piping consists of 8-inch diameter steam piping and 4-inch diameter condensate return piping. 2. Contractor is to schedule a quality control and quality assurance inspection with the Plant Superintendent that includes applicable references, materials of construction, design and installation features and acceptable manufacturers of underground piping used for steam and condensate return service. a) Submit piece mark shop drawings from manufacturer. Manufacturer shall design anchorage, hard expansion loops, pitch and penetrations. b) Submit piping lay-out of manhole detailing all main, branch and secondary trap piping for review. Active valves require critical positioning such that they can be accessed by reach rods from grade through manhole top openings. c) Submit shop drawings for each piping routing, including hard expansion loops. d) Submit the manhole piping layout, including all main and secondary piping. 3. Underground steam and condensate piping will be installed in separate casings to prevent interaction and potential leaks. 4. Steam Piping and Casing: Class A, DDT schedule 40, black seamless pipe, plain end, with high-temperature foam glass insulation. Prefabricated underground steam piping will utilize a Perma-Pipe or Rovanco prefabricated air-testable and drainable conduit system with galvanized steel (minimum 1/8") with waterproof covering.
