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22. Mercury concentrations in estuarine sediments, Lavaca and Matagorda bays, Texas, 1992
23. Ground-water resources of the coastal plain of Aunuu Island, American Samoa, 1996-97
24. Recharge and discharge areas and quality of groundwater in Tooele Valley, Tooele County, Utah
25. Chemical quality of water in consolidated rock and the basin-fill aquifer, west side of the Oquirrh Mountains, Tooele County, Utah
26. Rock-stratigraphic nomenclature, lithology, and subcrop area of the Galena-Platteville bedrock unit in Illinois and Wisconsin
27. Geodetic network to evaluate historical elevation changes and to monitor land subsidence in lower Coachella Valley, California, 1996
28. Delineation and extent of saltwater intrusion in the Biscayne aquifer, eastern Dade County, Florida, 1995
29. Potentiometric surface and hydrologic conditions of the upper aquifer in the Manati-Vega Baja area, north central Puerto Rico, March 1995
30. Potentiometric surfaces of the Potomac-Raritan-Magothy aquifer system near National Park, New Jersey
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