B08_Attachment_2_RamPumpReplacement-Dwgs.pdf

This document is a set of final construction drawings for the Newport Ram Pump Replacement project at the Northwest Geomagnetic Observatory in Newport, Washington, operated by the U.S. Geological Survey's Geologic Hazards Science Center.

The project involves the replacement of a hydraulic ram pump system and related infrastructure at the facility. Key mechanical components include a 1/3 HP centrifugal pump (1450 RPM, max 52.5 GPM, 47.5 ft head), a pressure sensing pump controller, a 2" x 2" altitude valve with hydraulic globe and bronze trim, and freeze protection valves. The electrical system consists of a hydroelectric turbine (24 VDC, 20 amp output), a charger/inverter unit, 12V battery bank (Group 27M, 88 AMP-HR minimum), and a 120/240V autotransformer (32A). The plumbing design specifies steel and PVC pipe and fittings throughout, with new spring box overflow pipe and drain systems. Structural work includes a pre-cast concrete spring box structure with lift lugs and grates, a hydraulic ram pump vault, and associated electrical enclosures constructed from 6061-T6 aluminum with welding per AWS D1.2/D1.2M standards. The drawings detail demolition requirements for existing equipment, site plans showing the 720-gallon balancing water tank and pump house locations, foundation details, and comprehensive mechanical and electrical equipment schedules. The project documentation is dated 30-NOV-2023 and represents the final resubmittal design package.