Water Resource Report 06
	Ground water in north-central Pennsylvania by Lohman, S. W. 1939
Suggested Citation:	Lohman, S. W., 1939, Ground water in north-central Pennsylvania: Pennsylvania Geological Survey, 4th ser., Water Resource Report 6, 219 p. [Available online.]
Description:	This historical report examines the groundwater and geology in Bradford, Cameron, Elk, Lycoming, McKean, Potter, Sullivan, and Tioga Counties of north-central Pennsylvania. Rocks of Ordovician age to present are discussed. A general discussion of groundwater and types of water sources and uses is followed by separate discussions on each county. Many black and white photographs show glacial features, monitoring wells, and gas extraction. Records of water wells and springs, and results of water quality analyses are listed in tables under the county descriptions. Plates of special interest include a 1:380,160-scale, full-color map showing bedrock geology and glacial borders; a 1:380,160-scale map showing inventoried water wells, glacial lake and stream deposits, and glacial spillways; and an approximately 1:510,000-scale map of anticlinal and synclinal fold axes (many named).
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