Document Summary

This is a technical drawing and design document package for the MEHRL Seawater Intake System at the Marine Environmental Health Research Laboratory in Charleston, South Carolina. The document consists of comprehensive engineering drawings, control diagrams, wiring schematics, and bills of material for a seawater pump and treatment system.

The project involves four Main Seawater Pumps (MSP-1 through MSP-4) configured for operation in different modes: MSP-1 serves the Settling Tank Filling/Cleaning System; MSP-3 serves the Raw Seawater System; MSP-4 serves the SCDNR Building; and MSP-2 operates as a standby pump capable of being assigned to any system. The system includes two Settled Seawater Pump systems (SSP-1 and SSP-2) and incorporates automated control through a Distributed Digital Control (DDC) system with operator workstations. Key operational modes include Automatic Filling Mode, Manual Mode, Drawdown Mode, and Tank Cleaning Mode, with extensive safety interlocks and real-time monitoring of tank levels, discharge pressures, and system status. The control infrastructure comprises multiple panels: CP-MSP (Main Seawater Pump Control Panel), CP-SSP (Settled Seawater System Control Panel), and compressed air supply systems. Technical specifications include valve schedules, solenoid-operated controls, pressure sensors, level sensors, electrical interlocks, and detailed wiring diagrams for all four main pump motors and associated control devices. The documentation provides complete material lists identifying specific components, part numbers, and equipment configurations necessary for installation and operation of the integrated seawater intake and distribution system.