Preliminary data from a series of artificial recharge experiments at Stanton, Texas

injection test Hydraulic data Sampling schedule and tracer data December 1978 tracer test References ILLUSTRATIONS Figure 7. Lithologic column from the Stanton, Tex. site with point locations of mineralogical analyses, porosity, and hydraulic-conductivity determinations 8. Sketch of stripping, concentration, and analytical system for fluorocarbons in the nanogram per liter range 9-12. Graphs showing: 9. Variation of input concentration with time of the fluorocarbon bromochlorodifluoromethane during the first tracer experiment, August 8, 1978 10. Variation of input concentration with time of the fluorocarbon dichlorodifluoromethane during the second tracer experiment, August 10-11, 1978 11. Variation of input concentration with time of the fluorocarbon dibromodifluoromethane during the third tracer experiment, August 12-13 12, 1978 12. Flowmeter logs from the injection well obtained during the March 1978 test 13. Flowmeter logs from the injection well obtained during the May 1978 test 14-38. Graph showing: 14. Change in specific conductance measured in samples from the 2-meter well and point samplers collected May 24-25, 1978 15. Change in specific conductance measured in samples from the 5-meter well and point samplers collected May 24-25, 1978 16. Change in alkalinity measured in samples from the 2-meter well and point samplers collected May 24-25, 1978 17. Change in alkalinity measured in samples from the 5-meter well and point samplers collected May 24-25, 1978 18. Flowmeter logs from the injection well obtained during the August 7-15, 1978 test 19. Bromide data obtained from the 2-meter well and point samplers during the first experiment of the August 1978 test 20. Bromide data obtained from the 5-meter well and point samplers during the first experiment of the August 1978 test 21. Bromide data obtained from the 10-and 15-meter wells during the first experiment of the August 1978 test 22. Bromide data obtained from the 2-, 5-, 10-, and 15-meter wells during the first experiment of the August 1978 test Ogallala aquifer based on data from the March 1977 pumping test 7. Tracer information for March 1978 injection test 8. Injection rates and cumulative volumes for the March 1-2, 1978, injection test 9. Transmissivity and storage values computed for the Ogallala aquifer based on data from the March 1978 injection test 10-21. Data obtained from the first tracer experiment on March 1, 1978, at the Stanton, Tex. site 10. 2-meter well 11. 2-meter black point sampler 12. 2-meter red point sampler 13. 2-meter orange point sampler 14. 2-meter green point sampler 15. 5-meter well 16. 5-meter black point sampler 17. 5-meter orange point sampler 18. 5-meter green point sampler 19. 10-meter well 20. 15-meter well 21. 30-meter well 22-29. Data obtained from the second tracer experiment on March 1, 1978, at the Stanton, Tex. site 22. 2-meter well 23. 2-meter black point sampler 24. 2-meter red point sampler 25. 2-meter orange point sampler 26. 2-meter green point sampler 27. 5-meter well 28. 5-meter black point sampler 29. 5-meter orange point sampler VI