Release of two new reports entitled "The principle of superposition and its application in ground-water hydraulics"



             UNITED STATES DEPARTMENT OF THE INTERIOR
                        GEOLOGICAL SURVEY
                        RESTON, VA. 22092

In Reply Refer To:                            September 20, 1985
WGS-Mail Stop 411


OFFICE OF GROUND WATER TECHNICAL MEMORANDUM NO. 85.05

Subject:  PUBLICATIONS--Release of two new reports entitled "The
                        principle of superposition and its
                        application in  ground-water hydraulics"
                        by T. E. Reilly, O. L. Franke,  and G. D.
                        Bennett and "Definition of boundary and
                        initial conditions in the analysis of
                        saturated ground- water flow systems--an
                        introduction" by O. L. Franke, T. E.
                        Reilly, and G. D. Bennett

The two subject reports have recently been released as Open-File
Reports 84-459 and 84-458 respectively, pending formal publication
as U. S. Geological Survey Techniques of Water-Resources
Investigations.  The reports, which are attached, are informative
and educational in nature, discussing two important aspects of
quantitative hydrology at a level of detail not available from
other sources.

The first report introduces the principle of superposition as it
applies to ground-water hydrology and provides background
information, discussion, illustrative problems with solutions, and
problems to be solved by the reader.  The second report explains
the properties of the most common boundary conditions encountered
in ground-water flow systems and discusses major aspects of their
application, as well as discussing the significance and
specification of initial conditions in ground-water systems.

We recommend that the reports be made available to all ground-
water hydrologists.  Because the reports will be formally
published at a later date, we request that any errors or misprints
be brought to the attention of Tom Reilly, of the Office of Ground
Water.



                                   (s) Eugene P. Patten
                                   Chief, Office of Ground Water

Attachments

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