B09_Att_(20)_REFERENCE_ElectricalAsBuiltDrawings_0003.pdf

This document is a comprehensive technical design package for the Pressure Water System MCC-100, a volcano monitoring and water supply facility located at Hawaii Volcanoes National Park.

The project encompasses a complete mechanical, electrical, and control systems design for a pressurized water distribution and treatment facility. Key infrastructure components include: a Motor Control Center (MCC-100) with automatic/manual pump controls; three booster pump stations (Pump #1, #2, and #3) with variable frequency drive (VFD) capabilities; ground catchment and treatment systems with storage tanks (ranging from 500,000 to 750,000 gallons); a water treatment plant incorporating filtration and chlorination systems; emergency backup generators with 120 VAC power distribution; and comprehensive instrumentation including pressure switches, flow meters, level controls, and alarm systems. The electrical design specifies 120/240-volt service with 200-amp main breaker capacity, multiple panel boards (designated as R43, TP, and GC), and control diagrams for automated operation sequences. Construction details address conduit installations, grounding requirements, antenna placement, and pole-mounted transformers. The system incorporates both manual and automatic operation modes with provisions for maintenance access and future expansion. All components are designed to federal specifications with detailed wiring schedules, device identification matrices, and single-line diagrams provided throughout the documentation. The design documentation is dated January 2009 and bears an "AS-BUILT" designation, indicating this represents the final constructed configuration of the facility's electrical and mechanical systems.