Attachment J-20 Groundwater Treatment System Operations and Maintenance Manual.pdf

This is an Operations and Maintenance Manual for the Groundwater Treatment System at NASA's Marshall Space Flight Center's West Test Stand Area. The manual, prepared by CH2MHILL in October 1998, provides detailed instructions for operating and maintaining a groundwater treatment system that handles contaminated groundwater from rocket engine testing facilities.

The system was designed to treat groundwater contaminated with VOCs (including trichloroethylene, trans-1,2-dichloroethene, chloroform, and carbon tetrachloride) from Structures 4670 and 4696, which were used for Saturn V and Space Shuttle engine testing. The treatment system consists of dewatering systems that pump approximately 2 million gallons per day from collection sumps, an equalization tank, and a packed tower aeration system for removing VOCs. The manual details specific operating procedures, maintenance requirements including quarterly cleaning schedules, water quality testing protocols, and safety procedures for handling chemicals like muriatic acid used in cleaning. The system discharges treated water to the Wheeler National Wildlife Refuge area through an NPDES-permitted outfall.