No abstract

The RASA Program represents a systematic effort to study a number of the Nation's most important aquifer systems, which, in aggregate, underlie much of the country and which represent an important component of the Nation's total water supply. In general, the boundaries of these studies are identified by the hydrologic extent of each system and, accordingly, transcend the political subdivisions to which investigations have often arbitrarily been limited in the past. The broad objective for each study is to assemble geologic, hydrologic, and geochemical information, to analyze and develop an understanding of the system, and to develop predictive capabilities that will contribute to the effective management of the system. The use of computer simulation is an important element of the RASA studies to develop an understanding of the natural, undisturbed hydrologic system and the changes brought about in it by human activities and to provide a means of predicting the regional effects of future pumping or other stresses. The final interpretive results of the RASA Program are presented in a series of U.S. Geological Survey Professional Papers that describe the geology, hydrology, and geochemistry of each regional aquifer system. Each study within the RASA Program is assigned a single Professional Paper number beginning with Professional Paper 1400. I Thomas J. Casadevall Acting Director Meter (m) Meter per day (m/d) Meter per kilometer (m/km) Pounds per square inch (lb/in.2) Millimeter (mm) Millimeter per year (mm/yr) Kilometer (km) Cubic meter per second (m3/s) Square kilometer (km2) Centimeter squared per day (cm2/d) Temperature in degrees Celsius (°C) can be convened to degrees Fahrenheit (°F) as follows: °F= (1.8 x°C>»-32.Sea level: In this report "sea level" refers to the National Geodetic Vertical Datum of 1929 (NGVD of 1929) a geodetic datum derived from a general adjustment of the first-order level nets of both the United States and Canada, formerly called Sea Level Datum of 1929.

TOTAL OF BARIUM BORON mIuM IRON SAMPLE (8)9 (FE) (8A) 9 9 (C4) (0(3/L)9 (UG/L) (uG/L)9 (UG/L)

This report was prepared as an account of work sponsored by the United States Government. Neither the United States nor the United States Atomic Energy Commission, nor any of their employees. nor any of their contractors, subcontractors, or their employees, makes any warranty. express or implied, or assumes any legal liability or responsibility for the accuracy, completeness or usefulness of any information, apparatus, product or process disclosed, or represents that its UK would not infringe privately owned rights. This report has been reproduced directly from the best available copy.

Hydrologic Test Well 1, the first multiple-test well, was drilled about one-half mile northeast of Tatum salt dome, Lamar County, Miss, (fig. 1). It is at Atomic Energy Commission coordinates 12,273 No and 12,759 E., approximately 370 feet southeast of the center of sec. 12, T. 2 N., R. 16 W., at an altitude of 315 feet above sea levels Hydrologic Test Well 1 was drilled as part of the Public Safety Program, which requires determination of the geologic and hydrologic conditions that exist on and near the dome. The well is one of several test wells drilled or planned for exploration of hydrologic conditions at Tatum salt dome. The well was drilled by the Layne-Central Company, The depth, thickness, general characteristics, and stratigraphic sequence of the formations and aquifers are shown on figure 2, A detailed description of the drill samples, sidewall cores, and vertical cores is given in tables 1 and 2. The attitude and areal extent of the aquifers is being determined by relating the information obtained from this test well to information from other test holes, wells, and seismic data available in the Tatum dome area.