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32. Hydrogeology of the valley-fill aquifer at Owego, Tioga County, New York
33. Geohydrology of the Morrison Formation in the western San Juan Basin, New Mexico
34. Hydrogeologic unit map of the Piedmont and Blue Ridge Provinces of North Carolina
35. Water withdrawals in the Roanoke-Chowan subregion of North Carolina and Virginia, 1983
36. Sand and gravel aquifers of Schuyler County, New York
37. Potentiometric surface of the Magothy aquifer in southern Maryland during September 1988
38. Potentiometric surface of the alluvial aquifer and hydrologic conditions near Gurabo and Juncos, Puerto Rico, March 1988
39. Water-level maps of the Mississippi River Valley alluvial aquifer in eastern Arkansas, 1987
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