EQUIPMENT AND SUPPLIES - Well-Pipe Sampler


               UNITED STATES DEPARTMENT OF THE INTERIOR
                          GEOLOGICAL SURVEY
                      WATER RESOURCES DIVISION
                         WASHINGTON 25, D. C.

                                               December 4, 1963
                                                      4056 0001

GROUND WATER BRANCH MEMORANDUM NO. 64.17

To:       District Chiefs and Staff Officials (GW)

From:     Chief, Ground Water Branch

Subject:  EQUIPMENT AND SUPPLIES - Well-Pipe Sampler

A recent products catalog of Hydro Products Co., P. O. Box 10766,
San Diego, California listed, as an item of equipment available, a
well-pipe sampler described below.

This referral is not intended as an endorsement of this particular
sampler but is merely to call your attention to it, in the event
you are not already aware of its existence.



                                   (s) A. H. Lang
                                   for O. M. Hackett


**see original for diagram

WELL-PIPE SAMPLER - MODEL 122

     The model 122 Well-Pipe Sampler was developed by Hydro
Products Co. as a nominal diameter, semi-free-flushing water
sampler for obtaining fluid samples from given depths in
ground water studies and other well-pipe applications.
Fabricated of clear high impact Plexiglass, the closure
method is effected by the manner originated by Dr. William G.
Van Dorn of Scripps.  The Well-Pipe Sampler weighs only 4
pounds, 2 ounces in air and is messenger-actuated to retrieve
a 2-liter water sample upon closure.  The sampler is
specifically designed for hand-lowering inside 5" diameter or
larger well-pipes or other small diameter holes.  There are
NO metallic surfaces presented to the sample, and all
exterior parts are fabricated of stainless steel and brass,
completely eliminating rusting and minimizing corrosion.

WRD Distribution:  A, B, S, FOL3, SL