초록 ▼

A fluid sampling apparatus is disclosed for withdrawing samples of groundwater or other fluids from a well or other monitoring site. The apparatus preferably includes pump means, conduit means and a wellhead assembly that are substantially permanently installed at such well or monitoring site and ar

A fluid sampling apparatus is disclosed for withdrawing samples of groundwater or other fluids from a well or other monitoring site. The apparatus preferably includes pump means, conduit means and a wellhead assembly that are substantially permanently installed at such well or monitoring site and are thereby dedicated thereto in order to avoid or minimize cross-contamination of samples from site to site. The apparatus preferably also includes a removable and portable controller means adapted for easy and convenient transportation and connection to such dedicated fluid sampling components at various wells or monitoring sites.

대표청구항 ▼

A groundwater sampling apparatus for withdrawing groundwater samples from a groundwater monitoring well, said apparatus having dedicatable inground components to prevent the apparatus from contaminating another well, said apparatus comprising: a pump adapted to be submerged in the groundwater within

A groundwater sampling apparatus for withdrawing groundwater samples from a groundwater monitoring well, said apparatus having dedicatable inground components to prevent the apparatus from contaminating another well, said apparatus comprising: a pump adapted to be submerged in the groundwater within said well for pumping a portion of said ground water therefrom, said pump being permanently dedicatable to said well and having a groundwater chamber with an inlet and an outlet, said groundwater chamber being in communication with said groundwater in said well through said inlet when said pump is submerged therein; a wellhead assembly permanently dedicatable to said well and adapted to be secured to said well to isolate the interior of said well from the above-ground surroundings, said wellhead assembly further including conduit means communicable with said pump and said wellhead assembly.