Sampling pump with packer
A groundwater sampling apparatus is described for withdrawing groundwater samples from a groundwater monitoring well, the apparatus having dedicatable inground components to prevent the apparatus from contaminating another well, the apparatus comprising: a pump adapted to be submerged in the groundwater within the well for pumping a portion of the groundwater, the pump being permanently dedicatable to the well and having a groundwater chamber with an inlet and an outlet; the groundwater chamber is connected with the portion of the groundwater in the well through the inlet when the pump is submerged in the groundwater; a packer associated with the pump, the packer reducing the volume of the portion of the groundwater which needs to be pumped in order to purge the well by isolating the portion of the groundwater; and a wellhead assembly permanently dedicatable to the well and adapted to be secured to the well to isolate the interior of the well from the above-ground surroundings, the wellhead assembly further including first conduit means communicable with the pump and the wellhead assembly, and second conduit means communicable with the packer and the wellhead assembly.
- Assignee:
- OED Environmental Systems, Inc., Ann Arbor, MI (United States)
- Patent Number(s):
- US 5238060; A
- Application Number:
- PPN: US 7-941693
- OSTI ID:
- 6285099
- Resource Relation:
- Patent File Date: 8 Sep 1992
- Country of Publication:
- United States
- Language:
- English
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