The United States of America As Represented by the Secretary of

The United States of America, As Represented by the Secretary of the Interior

James C Jelinski

Jerry Hubert Ross

Eugene Clark Hayes

Joseph N Greulich, Ii

Mark W Sandstrom

Doreen Y Tai

An apparatus includes a bi-directional DC motor; a gear reducer connected to the DC motor; a pulley mounted on an output of the gear reducer; an anti-back drive brake mounted on the output of the gear reducer; a reel wound with cable; a second pulley attached to the reel wound with cable; a belt for connecting the pulley and the second pulley; a water measuring device attached to an end of the cable wound on the reel; at least one shaft encoder attached to the motor for measuring the speed and direction of the motor; a DC power source connected to the DC motor; a microprocessor control electronics module connected to the at least one shaft encoder and the DC motor; and a remote control in communication with the microprocessor control electronics module.

Apparatus for deploying and retrieving water sampler

A water sampling device for field use operates in cleaning and sampling modes and includes a distributor valve that provides selective connection of a sample pump to a plurality of collection units so that a plurality of samples can be taken. The collection units are composed of a filter for removing particulate matter, a liquid-solid extraction cartridge, and a storage bottle. Water samples are automatically collected from a river or other water source, and then pumped immediately through the liquid-solid extraction cartridge which extracts and retains the contaminants from the water. Once the contaminants have been extracted into the cartridge, the sample is chemically stable and resistant to degradation, thereby eliminating the need for much of the special handling of samples that was previously required with field units.

Apparatus for sampling pesticide residues in run-off with control of

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Diamondhead, MS, United States of America

James C Jelinski