EQUIPMENT AND SUPPLIES - Well-location grids.



             UNITED STATES DEPARTMENT OF THE INTERIOR
                         GEOLOGICAL SURVEY
                      RESTON, VIRGINIA  22092

                                                      GW Branch

                                                 August 2, 1977
                                                      4351 5016

GROUND WATER BRANCH TECHNICAL MEMORANDUM NO. 77.09

Subject:  EQUIPMENT AND SUPPLIES - Well-location grids.

Recently several requests were received for additional copies of
three transparent interpolation grids for determining longitude
and latitude of points on maps.  These grids and instructions for
their use were originally distributed with Ground Water Branch
Technical Memorandum No. 74.07 on December 10, 1973.

The Branch now has replenished its supply of these grids and can
accommodate requests for additional copies.



                              (s) Gerald Meyer
                              Chief, Ground Water Branch
                              Water Resources Division

WRD Distribution:  A, B, S, FOL, PO