Abstract: A replaceable motor module for a groundwater sampling device including an inner housing defined by a cylindrical shape and having a first alignment pin. A DC-operated electric motor is positionable within the inner housing, and includes a first set of electrical input terminals, an output shaft capable of downwardly extending through a sealed hole in the inner housing, and a first alignment groove for mating with the first alignment pin of the inner housing. An inner housing cap includes a second set of electrical input terminals and electrical output terminals, and is pressingly engageable with the inner housing.

Abstract: A passive diffusion sampler and kit that includes a passive diffusion sample bag comprising a regenerated cellulose membrane to allow for sampling of a broad spectrum of contaminants and VOCs. The sample bag is disposed in a rigid housing which protects the bag from tearing and also allows the housing to be inverted to suspend the bag upside down and provide a user access to a fluid outlet means on the bag for withdrawing a sample from the bag without agitating the sample.

Abstract: A replaceable motor module for a groundwater sampling device including an inner housing defined by a cylindrical shape and having a first alignment pin. A DC-operated electric motor is positionable within the inner housing, and includes a first set of electrical input terminals, an output shaft capable of downwardly extending through a sealed hole in the inner housing, and a first alignment groove for mating with the first alignment pin of the inner housing. An inner housing cap includes a second set of electrical input terminals and electrical output terminals, and is pressingly engageable with the inner housing.

Abstract: A passive diffusion sampler and kit that includes a passive diffusion sample bag comprising a regenerated cellulose membrane to allow for sampling of a broad spectrum of contaminants and VOCs. The sample bag is disposed in a rigid housing which protects the bag from tearing and also allows the housing to be inverted to suspend the bag upside down and provide a user access to a fluid outlet means on the bag for withdrawing a sample from the bag without agitating the sample.