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About 4,400 people in Henderson County rely on private domestic water supplies: 90 percent use wells, the remainder use other sources. The Ohio River alluvium is the best source of ground water in the county. Nearly all drilled wells from depths of less than 150 feet in the alluvium are adequate for domestic use, with most wells yielding more than 50 gallons per minute (gal/min), and some wells yielding as much as 1,000 gal/min. In the southern and central half of Henderson County, most wells which penetrate sandstone from depths of less than 300 feet are adequate for a domestic supply. In the highlands of the eastern part of the county, and in western Henderson County around Smith Mills, only a few well yield enough water for a domestic supply. Generally, ground water is hard to very hard and iron and salt may be present in objectionable amounts. Often ground water becomes saltier with depth. |
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