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Title: Purge water management system

A purge water management system for effectively eliminating the production of purge water when obtaining a groundwater sample from a monitoring well. In its preferred embodiment, the purge water management system comprises an expandable container, a transportation system, and a return system. The purge water management system is connected to a wellhead sampling configuration, typically permanently installed at the well site. A pump, positioned with the monitoring well, pumps groundwater through the transportation system into the expandable container, which expands in direct proportion with volume of groundwater introduced, usually three or four well volumes, yet prevents the groundwater from coming into contact with the oxygen in the air. After this quantity of groundwater has been removed from the well, a sample is taken from a sampling port, after which the groundwater in the expandable container can be returned to the monitoring well through the return system. The purge water management system prevents the purge water from coming in contact with the outside environment, especially oxygen, which might cause the constituents of the groundwater to oxidize. Therefore, by introducing the purge water back into the monitoring well, the necessity of dealing with the purge water as a hazardous waste under themore » Resource Conservation and Recovery Act is eliminated.« less
 [1];  [2]
  1. (North Augusta, SC)
  2. (Aiken, SC)
Issue Date:
OSTI Identifier:
United States as represented by Department of Energy (Washington, DC) SRS
Patent Number(s):
US 5490561
Contract Number:
Research Org:
Country of Publication:
United States
purge; water; management; effectively; eliminating; production; obtaining; groundwater; sample; monitoring; preferred; embodiment; comprises; expandable; container; transportation; return; connected; wellhead; sampling; configuration; typically; permanently; installed; site; pump; positioned; pumps; expands; direct; proportion; volume; introduced; volumes; prevents; coming; contact; oxygen; air; quantity; removed; returned; outside; environment; especially; constituents; oxidize; introducing; necessity; dealing; hazardous; waste; resource; conservation; recovery; eliminated; hazardous waste; preferred embodiment; water sample; water management; purge water; direct proportion; groundwater sample; /166/175/