Salinity
Salinity
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Regional Synthesis of Groundwater Quality in Domestic Supply Wells in Northeast and North Central Pennsylvania
USGS synthesized groundwater quality measurements in wells to characterize regional chemical characteristics of aquifers used for domestic supply in northeast and north central Pennsylvania.
Shale Gas and Water Resources in Pennsylvania
The Pennsylvania Water Science Center and other USGS scientists are studying water availability, use, quality, and ecology associated with development of shale-gas energy resources in Pennsylvania.
Fractured-Rock Test Holes in Areas of Marcellus Shale Gas Development, Pennsylvania
USGS and Pennsylvania Geological Survey analyzed rock cuttings, geophysical logs, water quality, water-bearing zones, gas-isotope, and other data from deep test holes drilled in fractured bedrock in north-central Pennsylvania. The results of this study helped to quantify the depth and character of fresh and saline groundwater in areas of shale-gas exploration and development.